FAILED: patch "[PATCH] block: Make blk_mq_delay_kick_requeue_list() rerun the queue" failed to apply to 4.9-stable tree

The patch below does not apply to the 4.9-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From: Bart Van Assche <[email protected]>
Date: Wed, 9 Aug 2017 11:28:06 -0700
Subject: [PATCH] block: Make blk_mq_delay_kick_requeue_list() rerun the queue
at a quiet time

The blk_mq_delay_kick_requeue_list() function is used by the device mapper and only by the device mapper to rerun the queue and requeue list after a delay. This function is called once per request that gets requeued. Modify this function such that the queue is run once per path change event instead of once per request that is requeued.

index 211ef367345f..535cbdf32aab 100644
@@ -684,8 +684,8 @@ EXPORT_SYMBOL(blk_mq_kick_requeue_list);
 void blk_mq_delay_kick_requeue_list(struct request_queue *q,
 				    unsigned long msecs)
 {
-	kblockd_schedule_delayed_work(&q->requeue_work,
-				      msecs_to_jiffies(msecs));
+	kblockd_mod_delayed_work_on(WORK_CPU_UNBOUND, &q->requeue_work,
+				    msecs_to_jiffies(msecs));
 }
 EXPORT_SYMBOL(blk_mq_delay_kick_requeue_list);