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| author | Jan Kara <jack@suse.cz> | 2008-02-08 04:20:50 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-08 09:22:36 -0800 |
| commit | af793295bf9ee92660f5e77d337b0493cea3f9b9 (patch) | |
| tree | 139f7dd09dbfcae1f98c3af52638e94a52ed5560 /fs/udf/directory.c | |
| parent | 32a8f24dd75c2be34606e77414afba7bc6b5b366 (diff) | |
| download | linux-0-day-af793295bf9ee92660f5e77d337b0493cea3f9b9.tar.gz linux-0-day-af793295bf9ee92660f5e77d337b0493cea3f9b9.tar.xz | |
udf: cleanup directory offset handling
Position in directory returned by readdir is offset of directory entry divided
by four (don't ask me why). Make this conversion only when reading f_pos from
userspace / writing it there and internally work in bytes. It makes things
more easily readable and also fixes a bug (we forgot to divide length of the
entry by 4 when advancing f_pos in udf_add_entry()).
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/udf/directory.c')
| -rw-r--r-- | fs/udf/directory.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/fs/udf/directory.c b/fs/udf/directory.c index be16d7698a8cd..2820f8fcf4cc2 100644 --- a/fs/udf/directory.c +++ b/fs/udf/directory.c @@ -95,7 +95,7 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos, if (!fi) return NULL; - *nf_pos += ((fibh->eoffset - fibh->soffset) >> 2); + *nf_pos += fibh->eoffset - fibh->soffset; memcpy((uint8_t *)cfi, (uint8_t *)fi, sizeof(struct fileIdentDesc)); @@ -157,7 +157,7 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos, if (!fi) return NULL; - *nf_pos += ((fibh->eoffset - fibh->soffset) >> 2); + *nf_pos += fibh->eoffset - fibh->soffset; if (fibh->eoffset <= dir->i_sb->s_blocksize) { memcpy((uint8_t *)cfi, (uint8_t *)fi, @@ -197,8 +197,7 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos, cfi->lengthFileIdent + le16_to_cpu(cfi->lengthOfImpUse) + 3) & ~3; - *nf_pos += (fi_len - (fibh->eoffset - fibh->soffset)) - >> 2; + *nf_pos += fi_len - (fibh->eoffset - fibh->soffset); fibh->eoffset = fibh->soffset + fi_len; } else { memcpy((uint8_t *)cfi, (uint8_t *)fi, |