From 2b0542a4a0d9b8cb98e64fc87c5e31d130029a92 Mon Sep 17 00:00:00 2001 From: Wang Shilong Date: Sat, 12 Jan 2013 01:34:50 -0800 Subject: Ext2: 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 optimize it. Signed-off-by: Wang shilong Signed-off-by: Jan Kara --- fs/ext2/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/ext2/super.c') diff --git a/fs/ext2/super.c b/fs/ext2/super.c index fa04d023177e..7f68c8114026 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -1500,7 +1500,7 @@ static ssize_t ext2_quota_write(struct super_block *sb, int type, bh = sb_bread(sb, tmp_bh.b_blocknr); else bh = sb_getblk(sb, tmp_bh.b_blocknr); - if (!bh) { + if (unlikely(!bh)) { err = -EIO; goto out; } -- cgit v1.2.3