--- linux-work/fs/intermezzo/super.c-MAXLFS	Fri Feb  1 07:25:58 2002
+++ linux-work/fs/intermezzo/super.c	Mon Feb  4 11:28:53 2002
@@ -306,6 +306,9 @@
                 goto out_err;
         }
         mysb = fstype->read_super(presto_sb, cache_data, silent);
+	if (presto_sb->s_maxbytes  > MAX_LFS_FILESIZE)
+		presto_sb->s_maxbytes = MAX_LFS_FILESIZE;
+
         /* this might have been freed above */
         if (cache_data) {
                 PRESTO_FREE(cache_data, PAGE_SIZE);
--- linux-work/fs/super.c-MAXLFS	Fri Feb  1 07:26:19 2002
+++ linux-work/fs/super.c	Mon Feb  4 11:36:39 2002
@@ -620,6 +620,9 @@
 	lock_super(s);
 	if (!type->read_super(s, data, flags & MS_VERBOSE ? 1 : 0))
 		goto out_fail;
+	if (s->s_maxbytes  > MAX_LFS_FILESIZE)
+		s->s_maxbytes = MAX_LFS_FILESIZE;
+
 	s->s_flags |= MS_ACTIVE;
 	unlock_super(s);
 	/* tell bdcache that we are going to keep this one */
@@ -754,6 +757,8 @@
 	lock_super(s);
 	if (!fs_type->read_super(s, data, flags & MS_VERBOSE ? 1 : 0))
 		goto out_fail;
+	if (s->s_maxbytes  > MAX_LFS_FILESIZE)
+		s->s_maxbytes = MAX_LFS_FILESIZE;
 	s->s_flags |= MS_ACTIVE;
 	unlock_super(s);
 	path_release(&nd);
@@ -818,6 +823,8 @@
 		lock_super(s);
 		if (!fs_type->read_super(s, data, flags & MS_VERBOSE ? 1 : 0))
 			goto out_fail;
+		if (s->s_maxbytes  > MAX_LFS_FILESIZE)
+			s->s_maxbytes = MAX_LFS_FILESIZE;
 		s->s_flags |= MS_ACTIVE;
 		unlock_super(s);
 		return s;
--- linux-work/include/linux/fs.h-MAXLFS	Mon Feb  4 02:13:18 2002
+++ linux-work/include/linux/fs.h	Mon Feb  4 13:26:02 2002
@@ -588,6 +588,13 @@
 extern int init_private_file(struct file *, struct dentry *, int);
 
 #define	MAX_NON_LFS	((1UL<<31) - 1)
+/* Page cache limit. The filesystems should put that into their s_maxbytes 
+   limits, otherwise bad things can happen in VM. */ 
+#if BITS_PER_LONG==32
+#define MAX_LFS_FILESIZE   (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1) 
+#elif BITS_PER_LONG==64
+#define MAX_LFS_FILESIZE   0x7fffffffffffffff
+#endif
 
 #define FL_POSIX	1
 #define FL_FLOCK	2