From 7c506896cf933a07460dd9777ac023382446beac Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Tue, 26 Jan 2016 11:55:35 -0800 Subject: [PATCH] f2fs: use wq_has_sleeper for cp_wait wait_queue We need to use wq_has_sleeper including smp_mb to consider cp_wait concurrency. Signed-off-by: Jaegeuk Kim --- fs/f2fs/data.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 16cf8f0..90b3a37 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -74,8 +74,7 @@ static void f2fs_write_end_io(struct bio *bio) dec_page_count(sbi, F2FS_WRITEBACK); } - if (!get_pages(sbi, F2FS_WRITEBACK) && - !list_empty(&sbi->cp_wait.task_list)) + if (!get_pages(sbi, F2FS_WRITEBACK) && wq_has_sleeper(&sbi->cp_wait)) wake_up(&sbi->cp_wait); bio_put(bio); -- 2.7.4