Messages in this thread Patch in this message | | | From | Huang Ying <> | Subject | [PATCH] f2fs: Remove lock from check_valid_map | Date | Sun, 7 Sep 2014 11:05:04 +0800 |
| |
Only one bit is read in check_valid_map, holding a lock to do that doesn't help anything except decreasing performance.
Signed-off-by: Huang, Ying <ying.huang@intel.com> --- fs/f2fs/gc.c | 2 -- 1 file changed, 2 deletions(-)
--- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -382,10 +382,8 @@ static int check_valid_map(struct f2fs_s struct seg_entry *sentry; int ret; - mutex_lock(&sit_i->sentry_lock); sentry = get_seg_entry(sbi, segno); ret = f2fs_test_bit(offset, sentry->cur_valid_map); - mutex_unlock(&sit_i->sentry_lock); return ret; }
| |