Messages in this thread Patch in this message | | | From | Jaegeuk Kim <> | Subject | [PATCH] f2fs: use wq_has_sleeper for cp_wait wait_queue | Date | Tue, 26 Jan 2016 12:01:03 -0800 |
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We need to use wq_has_sleeper including smp_mb to consider cp_wait concurrency.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> --- 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 d0675e5..df4d4cc 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); -- 2.6.3
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