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| author | Andrew Stribblehill <a.d.stribblehill@durham.ac.uk> | 2005-09-09 13:02:04 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-09 13:57:32 -0700 |
| commit | fac92becdaecff64dd91daab0292c5131de92f0d (patch) | |
| tree | 6c91bdbbe527682813d7c27ed13bdb0531298146 /include/linux/bfs_fs.h | |
| parent | 383f2835eb9afb723af71850037b2f074ac9db60 (diff) | |
| download | linux-fac92becdaecff64dd91daab0292c5131de92f0d.tar.gz linux-fac92becdaecff64dd91daab0292c5131de92f0d.tar.bz2 linux-fac92becdaecff64dd91daab0292c5131de92f0d.zip | |
[PATCH] bfs: fix endianness, signedness; add trivial bugfix
* Makes BFS code endianness-clean.
* Fixes some signedness warnings.
* Fixes a problem in fs/bfs/inode.c:164 where inodes not synced to disk
don't get fully marked as clean. Here's how to reproduce it:
# mount -o loop -t bfs /bfs.img /mnt
# df -i /mnt
Filesystem Inodes IUsed IFree IUse% Mounted on
/bfs.img 48 1 47 3% /mnt
# df -k /mnt
Filesystem 1K-blocks Used Available Use% Mounted on
/bfs.img 512 5 508 1% /mnt
# cp 60k-archive.zip /mnt/mt.zip
# df -k /mnt
Filesystem 1K-blocks Used Available Use% Mounted on
/bfs.img 512 65 447 13% /mnt
# df -i /mnt
Filesystem Inodes IUsed IFree IUse% Mounted on
/bfs.img 48 2 46 5% /mnt
# rm /mnt/mt.zip
# echo $?
0
[If the unlink happens before the buffers flush, the following happens:]
# df -i /mnt
Filesystem Inodes IUsed IFree IUse% Mounted on
/bfs.img 48 2 46 5% /mnt
# df -k /mnt
Filesystem 1K-blocks Used Available Use% Mounted on
/bfs.img 512 65 447 13% /mnt
fs/bfs/bfs.h | 1
Signed-off-by: Andrew Stribblehill <ads@wompom.org>
Cc: <tigran@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/bfs_fs.h')
| -rw-r--r-- | include/linux/bfs_fs.h | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/include/linux/bfs_fs.h b/include/linux/bfs_fs.h index f7f0913cd110..c1237aa92e38 100644 --- a/include/linux/bfs_fs.h +++ b/include/linux/bfs_fs.h @@ -14,8 +14,9 @@ #define BFS_INODES_PER_BLOCK 8 /* SVR4 vnode type values (bfs_inode->i_vtype) */ -#define BFS_VDIR 2 -#define BFS_VREG 1 +#define BFS_VDIR 2L +#define BFS_VREG 1L + /* BFS inode layout on disk */ struct bfs_inode { @@ -58,22 +59,22 @@ struct bfs_super_block { __u32 s_padding[118]; }; -#define BFS_NZFILESIZE(ip) \ - (((ip)->i_eoffset + 1) - (ip)->i_sblock * BFS_BSIZE) - -#define BFS_FILESIZE(ip) \ - ((ip)->i_sblock == 0 ? 0 : BFS_NZFILESIZE(ip)) - -#define BFS_FILEBLOCKS(ip) \ - ((ip)->i_sblock == 0 ? 0 : ((ip)->i_eblock + 1) - (ip)->i_sblock) #define BFS_OFF2INO(offset) \ ((((offset) - BFS_BSIZE) / sizeof(struct bfs_inode)) + BFS_ROOT_INO) #define BFS_INO2OFF(ino) \ ((__u32)(((ino) - BFS_ROOT_INO) * sizeof(struct bfs_inode)) + BFS_BSIZE) +#define BFS_NZFILESIZE(ip) \ + ((cpu_to_le32((ip)->i_eoffset) + 1) - cpu_to_le32((ip)->i_sblock) * BFS_BSIZE) + +#define BFS_FILESIZE(ip) \ + ((ip)->i_sblock == 0 ? 0 : BFS_NZFILESIZE(ip)) +#define BFS_FILEBLOCKS(ip) \ + ((ip)->i_sblock == 0 ? 0 : (cpu_to_le32((ip)->i_eblock) + 1) - cpu_to_le32((ip)->i_sblock)) #define BFS_UNCLEAN(bfs_sb, sb) \ - ((bfs_sb->s_from != -1) && (bfs_sb->s_to != -1) && !(sb->s_flags & MS_RDONLY)) + ((cpu_to_le32(bfs_sb->s_from) != -1) && (cpu_to_le32(bfs_sb->s_to) != -1) && !(sb->s_flags & MS_RDONLY)) + #endif /* _LINUX_BFS_FS_H */ |