From: Jens Axboe <axboe@kernel.dk>
Date: Fri, 12 Oct 2018 00:06:02 +0000 (-0600)
Subject: blk-mq: remove legacy check in queue blk_freeze_queue()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=ba7b443422d66b765c1aafe67b050be7dad7c676;p=linux.git

blk-mq: remove legacy check in queue blk_freeze_queue()

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 4c82dc44d4d82..a58d2d9538767 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -177,8 +177,6 @@ void blk_freeze_queue(struct request_queue *q)
 	 * exported to drivers as the only user for unfreeze is blk_mq.
 	 */
 	blk_freeze_queue_start(q);
-	if (!q->mq_ops)
-		blk_drain_queue(q);
 	blk_mq_freeze_queue_wait(q);
 }