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| author | Justin Sanders <jsanders.devel@gmail.com> | 2025-06-10 17:05:59 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-27 11:07:39 +0100 |
| commit | 531aef4a1accb13b21a3b82ec29955f4733367d5 (patch) | |
| tree | 6efb6fd25c4a4a25911979c00606985e08df8f9e | |
| parent | 97ceca6cfc87f3ccdaaf1abd26ab2cf1dbad8ba9 (diff) | |
| download | linux-531aef4a1accb13b21a3b82ec29955f4733367d5.tar.gz linux-531aef4a1accb13b21a3b82ec29955f4733367d5.tar.bz2 linux-531aef4a1accb13b21a3b82ec29955f4733367d5.zip | |
aoe: clean device rq_list in aoedev_downdev()
[ Upstream commit 7f90d45e57cb2ef1f0adcaf925ddffdfc5e680ca ]
An aoe device's rq_list contains accepted block requests that are
waiting to be transmitted to the aoe target. This queue was added as
part of the conversion to blk_mq. However, the queue was not cleaned out
when an aoe device is downed which caused blk_mq_freeze_queue() to sleep
indefinitely waiting for those requests to complete, causing a hang. This
fix cleans out the queue before calling blk_mq_freeze_queue().
Link: https://bugzilla.kernel.org/show_bug.cgi?id=212665
Fixes: 3582dd291788 ("aoe: convert aoeblk to blk-mq")
Signed-off-by: Justin Sanders <jsanders.devel@gmail.com>
Link: https://lore.kernel.org/r/20250610170600.869-1-jsanders.devel@gmail.com
Tested-By: Valentin Kleibel <valentin@vrvis.at>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/block/aoe/aoedev.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c index 3523dd82d7a0..280679bde3a5 100644 --- a/drivers/block/aoe/aoedev.c +++ b/drivers/block/aoe/aoedev.c @@ -198,6 +198,7 @@ aoedev_downdev(struct aoedev *d) { struct aoetgt *t, **tt, **te; struct list_head *head, *pos, *nx; + struct request *rq, *rqnext; int i; d->flags &= ~DEVFL_UP; @@ -223,6 +224,13 @@ aoedev_downdev(struct aoedev *d) /* clean out the in-process request (if any) */ aoe_failip(d); + /* clean out any queued block requests */ + list_for_each_entry_safe(rq, rqnext, &d->rq_list, queuelist) { + list_del_init(&rq->queuelist); + blk_mq_start_request(rq); + blk_mq_end_request(rq, BLK_STS_IOERR); + } + /* fast fail all pending I/O */ if (d->blkq) { /* UP is cleared, freeze+quiesce to insure all are errored */ |