diff options
author | Christoph Hellwig <hch@lst.de> | 2011-07-08 14:35:19 +0200 |
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committer | Christoph Hellwig <hch@lst.de> | 2011-07-08 14:35:19 +0200 |
commit | 78f70cd7b7e8fd44dc89af4f72fb110d865338a1 (patch) | |
tree | a0faa6e46c6d6504de239a1b34e90938a5763bca /fs/xfs/xfs_dir2_sf.h | |
parent | ac8ba50f6be4a3ab49a2ad2cb676422af4ebaf8a (diff) | |
download | linux-78f70cd7b7e8fd44dc89af4f72fb110d865338a1.tar.bz2 |
xfs: cleanup the definition of struct xfs_dir2_sf_entry
Remove the inumber member which is at a variable offset after the actual
name, and make name a real variable sized C99 array instead of the incorrect
one-sized array which confuses (not only) gcc. Based on this clean up
the helpers to calculate the entry size.
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.h')
-rw-r--r-- | fs/xfs/xfs_dir2_sf.h | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/fs/xfs/xfs_dir2_sf.h b/fs/xfs/xfs_dir2_sf.h index c1ab2e7c66ae..55560bc80ec0 100644 --- a/fs/xfs/xfs_dir2_sf.h +++ b/fs/xfs/xfs_dir2_sf.h @@ -76,10 +76,13 @@ typedef struct xfs_dir2_sf_hdr { } __arch_pack xfs_dir2_sf_hdr_t; typedef struct xfs_dir2_sf_entry { - __uint8_t namelen; /* actual name length */ + __u8 namelen; /* actual name length */ xfs_dir2_sf_off_t offset; /* saved offset */ - __uint8_t name[1]; /* name, variable size */ - xfs_dir2_inou_t inumber; /* inode number, var. offset */ + __u8 name[]; /* name, variable size */ + /* + * A xfs_dir2_ino8_t or xfs_dir2_ino4_t follows here, at a + * variable offset after the name. + */ } __arch_pack xfs_dir2_sf_entry_t; static inline int xfs_dir2_sf_hdr_size(int i8count) @@ -101,19 +104,14 @@ xfs_dir2_sf_put_offset(xfs_dir2_sf_entry_t *sfep, xfs_dir2_data_aoff_t off) INT_SET_UNALIGNED_16_BE(&(sfep)->offset.i, off); } -static inline int xfs_dir2_sf_entsize_byname(xfs_dir2_sf_hdr_t *sfp, int len) -{ - return ((uint)sizeof(xfs_dir2_sf_entry_t) - 1 + (len) - \ - ((sfp)->i8count == 0) * \ - ((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t))); -} - static inline int -xfs_dir2_sf_entsize_byentry(xfs_dir2_sf_hdr_t *sfp, xfs_dir2_sf_entry_t *sfep) +xfs_dir2_sf_entsize(struct xfs_dir2_sf_hdr *hdr, int len) { - return ((uint)sizeof(xfs_dir2_sf_entry_t) - 1 + (sfep)->namelen - \ - ((sfp)->i8count == 0) * \ - ((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t))); + return sizeof(struct xfs_dir2_sf_entry) + /* namelen + offset */ + len + /* name */ + (hdr->i8count ? /* ino */ + sizeof(xfs_dir2_ino8_t) : + sizeof(xfs_dir2_ino4_t)); } static inline struct xfs_dir2_sf_entry * @@ -128,7 +126,7 @@ xfs_dir2_sf_nextentry(struct xfs_dir2_sf_hdr *hdr, struct xfs_dir2_sf_entry *sfep) { return (struct xfs_dir2_sf_entry *) - ((char *)sfep + xfs_dir2_sf_entsize_byentry(hdr, sfep)); + ((char *)sfep + xfs_dir2_sf_entsize(hdr, sfep->namelen)); } /* |