This is a note to let you know that I've just added the patch titled
dm mpath: remove annoying message of 'blk_get_request() returned -11'
to the 4.14-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:
dm-mpath-remove-annoying-message-of-blk_get_request-returned-11.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 9dc112e2daf87b40607fd8d357e2d7de32290d45 Mon Sep 17 00:00:00 2001
From: Ming Lei <ming.lei@xxxxxxxxxx>
Date: Sat, 30 Sep 2017 19:46:48 +0800
Subject: dm mpath: remove annoying message of 'blk_get_request() returned -11'
From: Ming Lei <ming.lei@xxxxxxxxxx>
commit 9dc112e2daf87b40607fd8d357e2d7de32290d45 upstream.
It is very normal to see allocation failure, especially with blk-mq
request_queues, so it's unnecessary to report this error and annoy
people.
In practice this 'blk_get_request() returned -11' error gets logged
quite frequently when a blk-mq DM multipath device sees heavy IO.
This change is marked for stable@ because the annoying message in
question was included in stable@ commit 7083abbbf.
Fixes: 7083abbbf ("dm mpath: avoid that path removal can trigger an infinite loop")
Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx>
Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/md/dm-mpath.c | 2 --
1 file changed, 2 deletions(-)
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -499,8 +499,6 @@ static int multipath_clone_and_map(struc
if (IS_ERR(clone)) {
/* EBUSY, ENODEV or EWOULDBLOCK: requeue */
bool queue_dying = blk_queue_dying(q);
- DMERR_LIMIT("blk_get_request() returned %ld%s - requeuing",
- PTR_ERR(clone), queue_dying ? " (path offline)" : "");
if (queue_dying) {
atomic_inc(&m->pg_init_in_progress);
activate_or_offline_path(pgpath);
Patches currently in stable-queue which might be from ming.lei@xxxxxxxxxx are
queue-4.14/dm-mpath-remove-annoying-message-of-blk_get_request-returned-11.patch