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authorWang Shilong <wangsl-fnst@cn.fujitsu.com>2013-01-12 09:36:17 (GMT)
committerJan Kara <jack@suse.cz>2013-01-21 10:19:57 (GMT)
commit1b7d76e9b1106f2be062f915b05d47658dd4fc63 (patch)
tree986543d21d3b870c54bd9e3280c7ec85fc4384db /fs/ext3/xattr.c
parent2b0542a4a0d9b8cb98e64fc87c5e31d130029a92 (diff)
downloadlinux-1b7d76e9b1106f2be062f915b05d47658dd4fc63.tar.xz
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.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c
index d22ebb7..9f57470 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;