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authorTheodore Ts'o <tytso@mit.edu>2010-10-17 03:37:00 +0400
committerJan Kara <jack@suse.cz>2011-01-06 13:52:15 +0300
commit5026e90b86684bc878e4db0a8cd043fed769719c (patch)
treedca74ba7e855871158d8a58f3472503b4a5ec9ab /fs/ext3
parentf0cad89f5e8ef8b6d0c065115565524137e44f0b (diff)
downloadlinux-5026e90b86684bc878e4db0a8cd043fed769719c.tar.xz
ext3: Use search_dirblock() in ext3_dx_find_entry()
Use the search_dirblock() in ext3_dx_find_entry(). It makes the code easier to read, and it takes advantage of common code. It also saves 100 bytes or so of text space. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: Brad Spengler <spender@grsecurity.net> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ext3')
-rw-r--r--fs/ext3/namei.c33
1 files changed, 12 insertions, 21 deletions
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index d093cbbe38b7..9cc0b2c9664f 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -975,12 +975,9 @@ static struct buffer_head * ext3_dx_find_entry(struct inode *dir,
struct super_block *sb = dir->i_sb;
struct dx_hash_info hinfo;
struct dx_frame frames[2], *frame;
- struct ext3_dir_entry_2 *de, *top;
struct buffer_head *bh;
unsigned long block;
int retval;
- int namelen = entry->len;
- const u8 *name = entry->name;
if (!(frame = dx_probe(entry, dir, &hinfo, frames, err)))
return NULL;
@@ -988,26 +985,20 @@ static struct buffer_head * ext3_dx_find_entry(struct inode *dir,
block = dx_get_block(frame->at);
if (!(bh = ext3_bread (NULL,dir, block, 0, err)))
goto errout;
- de = (struct ext3_dir_entry_2 *) bh->b_data;
- top = (struct ext3_dir_entry_2 *) ((char *) de + sb->s_blocksize -
- EXT3_DIR_REC_LEN(0));
- for (; de < top; de = ext3_next_entry(de)) {
- int off = (block << EXT3_BLOCK_SIZE_BITS(sb))
- + ((char *) de - bh->b_data);
-
- if (!ext3_check_dir_entry(__func__, dir, de, bh, off)) {
- brelse(bh);
- *err = ERR_BAD_DX_DIR;
- goto errout;
- }
- if (ext3_match(namelen, name, de)) {
- *res_dir = de;
- dx_release(frames);
- return bh;
- }
+ retval = search_dirblock(bh, dir, entry,
+ block << EXT3_BLOCK_SIZE_BITS(sb),
+ res_dir);
+ if (retval == 1) {
+ dx_release(frames);
+ return bh;
}
- brelse (bh);
+ brelse(bh);
+ if (retval == -1) {
+ *err = ERR_BAD_DX_DIR;
+ goto errout;
+ }
+
/* Check to see if we should continue to search */
retval = ext3_htree_next_block(dir, hinfo.hash, frame,
frames, NULL);