diff options
| author | Christoph Hellwig <hch@lst.de> | 2011-07-08 16:35:58 +0400 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2011-07-08 16:35:58 +0400 |
| commit | 218106a1104c598011e5df9d9aac7e0416be03e6 (patch) | |
| tree | bdec31d1f6fd5fe11eed76bac56017affd3d1606 /fs/xfs/xfs_dir2_sf.c | |
| parent | 2282396d8157033503318fe4dee77ba82dc9d144 (diff) | |
| download | linux-218106a1104c598011e5df9d9aac7e0416be03e6.tar.xz | |
xfs: use generic get_unaligned_beXX helpers
Switch the shortform directory code over to use the generic
get_unaligned_beXX helpers instead of reinventing them. As a result
kill off xfs_arch.h and move the setting of XFS_NATIVE_HOST into
xfs_linux.h.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs/xfs_dir2_sf.c')
| -rw-r--r-- | fs/xfs/xfs_dir2_sf.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c index b47a99c8f244..9d3dff2ae4c5 100644 --- a/fs/xfs/xfs_dir2_sf.c +++ b/fs/xfs/xfs_dir2_sf.c @@ -59,11 +59,12 @@ static void xfs_dir2_sf_toino4(xfs_da_args_t *args); static void xfs_dir2_sf_toino8(xfs_da_args_t *args); #endif /* XFS_BIG_INUMS */ - /* * Inode numbers in short-form directories can come in two versions, * either 4 bytes or 8 bytes wide. These helpers deal with the * two forms transparently by looking at the headers i8count field. + * + * For 64-bit inode number the most significant byte must be zero. */ static xfs_ino_t xfs_dir2_sf_get_ino( @@ -71,9 +72,9 @@ xfs_dir2_sf_get_ino( xfs_dir2_inou_t *from) { if (hdr->i8count) - return XFS_GET_DIR_INO8(from->i8); + return get_unaligned_be64(&from->i8.i) & 0x00ffffffffffffffULL; else - return XFS_GET_DIR_INO4(from->i4); + return get_unaligned_be32(&from->i4.i); } static void @@ -82,10 +83,12 @@ xfs_dir2_sf_put_ino( xfs_dir2_inou_t *to, xfs_ino_t ino) { + ASSERT((ino & 0xff00000000000000ULL) == 0); + if (hdr->i8count) - XFS_PUT_DIR_INO8(ino, to->i8); + put_unaligned_be64(ino, &to->i8.i); else - XFS_PUT_DIR_INO4(ino, to->i4); + put_unaligned_be32(ino, &to->i4.i); } xfs_ino_t |