Patch "[PATCH 116/135] blk-mq: End unstarted requests on dying queue" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

[PATCH 116/135] blk-mq: End unstarted requests on dying queue

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
0116-blk-mq-End-unstarted-requests-on-dying-queue.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Keith Busch <[email protected]>
Date: Thu, 26 May 2016 10:25:51 -0600
Subject: [PATCH 116/135] blk-mq: End unstarted requests on dying queue

[ Upstream commit a59e0f5795fe52dad42a99c00287e3766153b312 ]

Go directly to ending a request if it wasn't started. Previously, completing a request may invoke a driver callback for a request it didn't initialize.

---
 block/blk-mq.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

@@ -601,8 +601,10 @@ static void blk_mq_check_expired(struct
 		 * If a request wasn't started before the queue was
 		 * marked dying, kill it here or it'll go unnoticed.
 		 */
-		if (unlikely(blk_queue_dying(rq->q)))
-			blk_mq_complete_request(rq, -EIO);
+		if (unlikely(blk_queue_dying(rq->q))) {
+			rq->errors = -EIO;
+			blk_mq_end_request(rq, rq->errors);
+		}
 		return;
 	}
 	if (rq->cmd_flags & REQ_NO_TIMEOUT)

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/0120-block-fix-blk_rq_get_max_sectors-for-driver-private-.patch queue-4.4/0116-blk-mq-End-unstarted-requests-on-dying-queue.patch