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authorJaegeuk Kim <jaegeuk.kim@samsung.com>2013-12-06 15:00:58 +0900
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-12-23 10:18:06 +0900
commit6bacf52fb58aeb3e89d9a62970b85a5570aa8ace (patch)
tree422eb46c144b7ffbae193570a001de2eed490e09 /fs/f2fs/gc.c
parentcfb271d485d0ec31eb92b51f4fbe54bf6542e8e6 (diff)
f2fs: add unlikely() macro for compiler more aggressively
This patch adds unlikely() macro into the most of codes. The basic rule is to add that when: - checking unusual errors, - checking page mappings, - and the other unlikely conditions. Change log from v1: - Don't add unlikely for the NULL test and error test: advised by Andi Kleen. Cc: Chao Yu <chao2.yu@samsung.com> Cc: Andi Kleen <andi@firstfloor.org> Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/gc.c')
-rw-r--r--fs/f2fs/gc.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 2886aef35d59..29ceb9d71c8c 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -119,7 +119,6 @@ int start_gc_thread(struct f2fs_sb_info *sbi)
kfree(gc_th);
sbi->gc_thread = NULL;
}
-
out:
return err;
}
@@ -695,7 +694,7 @@ int f2fs_gc(struct f2fs_sb_info *sbi)
INIT_LIST_HEAD(&ilist);
gc_more:
- if (!(sbi->sb->s_flags & MS_ACTIVE))
+ if (unlikely(!(sbi->sb->s_flags & MS_ACTIVE)))
goto stop;
if (gc_type == BG_GC && has_not_enough_free_secs(sbi, nfree)) {