[PATCH 1/2] blk-mq: properly drain stopped queues

[Christoph Hellwig]

If we need to drain a queue we need to run all queues, even if they
are marked stopped to make sure the driver has a chance to error out
on all queued requests.

This fixes surprise removal with scsi-mq.

Reported-by: Bart Van Assche <bvanassche@xxxxxxx>
Tested-by: Bart Van Assche <bvanassche@xxxxxxx>
---
 block/blk-mq.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 3d868d3..15b3ccd 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -120,7 +120,7 @@ static void __blk_mq_drain_queue(struct request_queue *q)
 
 		if (count == 0)
 			break;
-		blk_mq_run_queues(q, false);
+		blk_mq_start_hw_queues(q);
 		msleep(10);
 	}
 }
-- 
1.7.10.4

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