Use the search_dirblock() in ext4_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@xxxxxxx>
Cc: Brad Spengler <spender@xxxxxxxxxxxxxx>
---
fs/ext4/namei.c | 33 ++++++++++++---------------------
1 files changed, 12 insertions(+), 21 deletions(-)
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index ff89449..eb8b794 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -974,39 +974,30 @@ static struct buffer_head * ext4_dx_find_entry(struct inode *dir, const struct q
struct super_block * sb = dir->i_sb;
struct dx_hash_info hinfo;
struct dx_frame frames[2], *frame;
- struct ext4_dir_entry_2 *de, *top;
struct buffer_head *bh;
ext4_lblk_t block;
int retval;
- int namelen = d_name->len;
- const u8 *name = d_name->name;
if (!(frame = dx_probe(d_name, dir, &hinfo, frames, err)))
return NULL;
do {
block = dx_get_block(frame->at);
- if (!(bh = ext4_bread (NULL,dir, block, 0, err)))
+ if (!(bh = ext4_bread(NULL, dir, block, 0, err)))
goto errout;
- de = (struct ext4_dir_entry_2 *) bh->b_data;
- top = (struct ext4_dir_entry_2 *) ((char *) de + sb->s_blocksize -
- EXT4_DIR_REC_LEN(0));
- for (; de < top; de = ext4_next_entry(de, sb->s_blocksize)) {
- int off = (block << EXT4_BLOCK_SIZE_BITS(sb))
- + ((char *) de - bh->b_data);
-
- if (!ext4_check_dir_entry(dir, de, bh, off)) {
- brelse(bh);
- *err = ERR_BAD_DX_DIR;
- goto errout;
- }
- if (ext4_match(namelen, name, de)) {
- *res_dir = de;
- dx_release(frames);
- return bh;
- }
+ retval = search_dirblock(bh, dir, d_name,
+ block << EXT4_BLOCK_SIZE_BITS(sb),
+ res_dir);
+ if (retval == 1) { /* Success! */
+ dx_release(frames);
+ return bh;
}
brelse(bh);
+ if (retval == -1) {
+ *err = ERR_BAD_DX_DIR;
+ goto errout;
+ }
+
/* Check to see if we should continue to search */
retval = ext4_htree_next_block(dir, hinfo.hash, frame,
frames, NULL);
--
1.7.1
--
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