f2fs: wake up all waiters in f2fs_submit_discard_endio

There could be more than one waiter waiting discard IO completion, so we
need use complete_all() instead of complete() in f2fs_submit_discard_endio
to avoid hungtask.

Fixes: 	ec9895add2 ("f2fs: don't hold cmd_lock during waiting discard
command")
Cc: <stable@vger.kernel.org>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2017-05-19 23:46:44 +08:00 committed by Jaegeuk Kim
parent 04dfc23006
commit e31b982157

View File

@ -752,7 +752,7 @@ static void f2fs_submit_discard_endio(struct bio *bio)
dc->error = bio->bi_error;
dc->state = D_DONE;
complete(&dc->wait);
complete_all(&dc->wait);
bio_put(bio);
}