The patch titled
fix UFS superblock alignment issues
has been added to the -mm tree. Its filename is
fix-ufs-superblock-alignment-issues.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: fix UFS superblock alignment issues
From: Eric Sandeen <sandeen@xxxxxxxxxx>
ufs2 fails to mount on x86_64, claiming bad magic. This is because
ufs_super_block_third's fs_un1 member is padded out by 4 bytes for 8-byte
alignment, pushing down the rest of the struct.
Forcing this to be packed solves it. I took a quick look over other
on-disk structures and didn't immediately find other problems. I was able
to mount & ls a populated ufs2 filesystem w/ this change.
Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>
Cc: Evgeniy Dushistov <dushistov@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
include/linux/ufs_fs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN include/linux/ufs_fs.h~fix-ufs-superblock-alignment-issues include/linux/ufs_fs.h
--- a/include/linux/ufs_fs.h~fix-ufs-superblock-alignment-issues
+++ a/include/linux/ufs_fs.h
@@ -908,7 +908,7 @@ struct ufs_super_block_third {
__fs64 fs_csaddr; /* blk addr of cyl grp summary area */
__fs64 fs_pendingblocks;/* blocks in process of being freed */
__fs32 fs_pendinginodes;/*inodes in process of being freed */
- } fs_u2;
+ } __attribute__ ((packed)) fs_u2;
} fs_un1;
union {
struct {
_
Patches currently in -mm which might be from sandeen@xxxxxxxxxx are
fix-ufs-superblock-alignment-issues.patch
handle-ext3-directory-corruption-better.patch
handle-ext4-directory-corruption-better.patch
-
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