[PATCH] uml: depend on !USERMODE in drivers/block/Kconfig and drop arch/um/Kconfig_block

Finally, we end with this the need to update arch/um/Kconfig_block with
changes in drivers/block/Kconfig - we include directly that; UML-specific
entries were moved into it (they are very few).

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 55 insertions, 2 deletions

diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index c77f49e174c10c..9f922ba4bb9cd7 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -6,7 +6,7 @@ menu "Block devices"
 
 config BLK_DEV_FD
 	tristate "Normal floppy disk support"
-	depends on (!ARCH_S390 && !M68K && !IA64) || Q40 || (SUN3X && BROKEN)
+	depends on (!ARCH_S390 && !M68K && !IA64 && !USERMODE) || Q40 || (SUN3X && BROKEN)
 	---help---
 	  If you want to use the floppy disk drive(s) of your PC under Linux,
 	  say Y. Information about this driver, especially important for IBM
@@ -208,6 +208,56 @@ config BLK_DEV_UMEM
 	  one is chosen dynamically.  Use "devfs" or look in /proc/devices
 	  for the device number
 
+config BLK_DEV_UBD
+	bool "Virtual block device"
+	depends on USERMODE
+	---help---
+          The User-Mode Linux port includes a driver called UBD which will let
+          you access arbitrary files on the host computer as block devices.
+          Unless you know that you do not need such virtual block devices say
+          Y here.
+
+config BLK_DEV_UBD_SYNC
+	bool "Always do synchronous disk IO for UBD"
+	depends on BLK_DEV_UBD
+	---help---
+	  Writes to the virtual block device are not immediately written to the
+	  host's disk; this may cause problems if, for example, the User-Mode
+	  Linux 'Virtual Machine' uses a journalling filesystem and the host
+	  computer crashes.
+
+          Synchronous operation (i.e. always writing data to the host's disk
+          immediately) is configurable on a per-UBD basis by using a special
+          kernel command line option.  Alternatively, you can say Y here to
+          turn on synchronous operation by default for all block devices.
+
+          If you're running a journalling file system (like reiserfs, for
+          example) in your virtual machine, you will want to say Y here.  If
+          you care for the safety of the data in your virtual machine, Y is a
+          wise choice too.  In all other cases (for example, if you're just
+          playing around with User-Mode Linux) you can choose N.
+
+config BLK_DEV_COW_COMMON
+	bool
+	default BLK_DEV_UBD
+
+config MMAPPER
+	tristate "Example IO memory driver (BROKEN)"
+	depends on USERMODE && BROKEN
+	---help---
+          The User-Mode Linux port can provide support for IO Memory
+          emulation with this option.  This allows a host file to be
+          specified as an I/O region on the kernel command line. That file
+          will be mapped into UML's kernel address space where a driver can
+          locate it and do whatever it wants with the memory, including
+          providing an interface to it for UML processes to use.
+
+          For more information, see
+          <http://user-mode-linux.sourceforge.net/iomem.html>.
+
+          If you'd like to be able to provide a simulated IO port space for
+          User-Mode Linux processes, say Y.  If unsure, say N.
+
 config BLK_DEV_LOOP
 	tristate "Loopback device support"
 	---help---
@@ -401,9 +451,11 @@ config INITRAMFS_ROOT_GID
 
 	  If you are not sure, leave it set to "0".
 
+#XXX - it makes sense to enable this only for 32-bit subarch's, not for x86_64
+#for instance.
 config LBD
 	bool "Support for Large Block Devices"
-	depends on X86 || MIPS32 || PPC32 || ARCH_S390_31 || SUPERH
+	depends on X86 || MIPS32 || PPC32 || ARCH_S390_31 || SUPERH || USERMODE
 	help
 	  Say Y here if you want to attach large (bigger than 2TB) discs to
 	  your machine, or if you want to have a raid or loopback device
@@ -411,6 +463,7 @@ config LBD
 
 config CDROM_PKTCDVD
 	tristate "Packet writing on CD/DVD media"
+	depends on !USERMODE
 	help
 	  If you have a CDROM drive that supports packet writing, say Y to
 	  include preliminary support. It should work with any MMC/Mt Fuji