[PATCH 1/3] md/raid1: replace wait loop with wait_event_idle() in raid1_write_request()

[Abd-Alrhman Masalkhi <abd.masalkhi@gmail.com>]

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

Signed-off-by: Abd-Alrhman Masalkhi <abd.masalkhi@gmail.com>
---
 drivers/md/raid1.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index cc9914bd15c1..b549be9174bb 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1488,21 +1488,14 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio,
 	    mddev->cluster_ops->area_resyncing(mddev, WRITE,
 		     bio->bi_iter.bi_sector, bio_end_sector(bio))) {
 
-		DEFINE_WAIT(w);
 		if (bio->bi_opf & REQ_NOWAIT) {
 			bio_wouldblock_error(bio);
 			return;
 		}
-		for (;;) {
-			prepare_to_wait(&conf->wait_barrier,
-					&w, TASK_IDLE);
-			if (!mddev->cluster_ops->area_resyncing(mddev, WRITE,
-							bio->bi_iter.bi_sector,
-							bio_end_sector(bio)))
-				break;
-			schedule();
-		}
-		finish_wait(&conf->wait_barrier, &w);
+		wait_event_idle(conf->wait_barrier,
+				!mddev->cluster_ops->area_resyncing(mddev, WRITE,
+								    bio->bi_iter.bi_sector,
+								    bio_end_sector(bio)));
 	}
 
 	/*
-- 
2.43.0