Commit 8e8278ac authored by Abd-Alrhman Masalkhi's avatar Abd-Alrhman Masalkhi Committed by Yu Kuai
Browse files

md: replace wait loop with wait_event() in md_handle_request() 



The wait loop is equivalent to wait_event() and can be simplified by
usaing it for improving readability.

Signed-off-by: default avatarAbd-Alrhman Masalkhi <abd.masalkhi@gmail.com>
Link: https://lore.kernel.org/r/20260415140319.376578-2-abd.masalkhi@gmail.com


Signed-off-by: default avatarYu Kuai <yukuai@fnnas.com>
parent 9aa6d860

drivers/md/md.c

+1 −9
Original line number Diff line number Diff line
@@ -396,20 +396,12 @@ bool md_handle_request(struct mddev *mddev, struct bio *bio) 
{

check_suspended:

	if (is_suspended(mddev, bio)) {

		DEFINE_WAIT(__wait);

		/* Bail out if REQ_NOWAIT is set for the bio */

		if (bio->bi_opf & REQ_NOWAIT) {

			bio_wouldblock_error(bio);

			return true;

		}

		for (;;) {

			prepare_to_wait(&mddev->sb_wait, &__wait,

					TASK_UNINTERRUPTIBLE);

			if (!is_suspended(mddev, bio))

				break;

			schedule();

		}

		finish_wait(&mddev->sb_wait, &__wait);

		wait_event(mddev->sb_wait, !is_suspended(mddev, bio));

	}

	if (!percpu_ref_tryget_live(&mddev->active_io))

		goto check_suspended;