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| author |   Wang Shilong <wangsl-fnst@cn.fujitsu.com> | 2013-01-12 01:36:17 -0800 |
|---|---|---|
| committer |   Jan Kara <jack@suse.cz> | 2013-01-21 11:19:57 +0100 |
| commit | 1b7d76e9b1106f2be062f915b05d47658dd4fc63 (patch) | |
| tree | 986543d21d3b870c54bd9e3280c7ec85fc4384db /fs/ext3/xattr.c | |
| parent | Ext2: use unlikely to improve the efficiency of the kernel (diff) | |
| download | linux-dev-1b7d76e9b1106f2be062f915b05d47658dd4fc63.tar.xz linux-dev-1b7d76e9b1106f2be062f915b05d47658dd4fc63.zip | |
Ext3: use unlikely to improve the efficiency of the kernel
Because the function 'sb_getblk' seldomly fails to return
NULL value,it will be better to use unlikely to check it.
Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ext3/xattr.c')
| -rw-r--r-- | fs/ext3/xattr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c index d22ebb7a4f55..9f57470b1727 100644 --- a/fs/ext3/xattr.c +++ b/fs/ext3/xattr.c @@ -813,7 +813,7 @@ inserted: ea_idebug(inode, "creating block %d", block); new_bh = sb_getblk(sb, block); - if (!new_bh) { + if (unlikely(!new_bh)) { getblk_failed: ext3_free_blocks(handle, inode, block, 1); error = -EIO; |