lkml.org 
[lkml]   [2016]   [Sep]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4.4 112/192] [PATCH 116/135] blk-mq: End unstarted requests on dying queue
Date
4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

[ 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.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Johannes Thumshirn <jthumshirn at suse.de>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
block/blk-mq.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -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)

\
 
 \ /
  Last update: 2016-09-17 09:59    [W:0.862 / U:0.116 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site