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| author | Bart Van Assche <bart.vanassche@wdc.com> | 2017-11-08 10:23:45 -0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-11-10 19:53:25 -0700 |
| commit | aba7afc5671c23beade64d10caf86e24a9105dab (patch) | |
| tree | a5283da0814f4a2aeda727e34572ef2f71a90918 /block/blk-core.c | |
| parent | ab083b11f6f43af071f9b507e48d212bfbb2beb3 (diff) | |
| download | lwn-aba7afc5671c23beade64d10caf86e24a9105dab.tar.gz lwn-aba7afc5671c23beade64d10caf86e24a9105dab.zip | |
blk-mq: Avoid that request queue removal can trigger list corruption
Avoid that removal of a request queue sporadically triggers the
following warning:
list_del corruption. next->prev should be ffff8807d649b970, but was 6b6b6b6b6b6b6b6b
WARNING: CPU: 3 PID: 342 at lib/list_debug.c:56 __list_del_entry_valid+0x92/0xa0
Call Trace:
process_one_work+0x11b/0x660
worker_thread+0x3d/0x3b0
kthread+0x129/0x140
ret_from_fork+0x27/0x40
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-core.c')
| -rw-r--r-- | block/blk-core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index b8d1aa2d1008..5e81dcf4690a 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -339,6 +339,7 @@ void blk_sync_queue(struct request_queue *q) struct blk_mq_hw_ctx *hctx; int i; + cancel_delayed_work_sync(&q->requeue_work); queue_for_each_hw_ctx(q, hctx, i) cancel_delayed_work_sync(&hctx->run_work); } else { |