diff options
| author | Bart Van Assche <bart.vanassche@wdc.com> | 2017-10-19 10:00:48 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-10-30 13:28:10 -0600 |
| commit | 4e9b6f20828ac880dbc1fa2fdbafae779473d1af (patch) | |
| tree | 9cac5adedafdea4f678947001caa69cd7de123eb /block/blk-core.c | |
| parent | 4d740bc9f0319229410d11e445017f47e425dbe0 (diff) | |
| download | lwn-4e9b6f20828ac880dbc1fa2fdbafae779473d1af.tar.gz lwn-4e9b6f20828ac880dbc1fa2fdbafae779473d1af.zip | |
block: Fix a race between blk_cleanup_queue() and timeout handling
Make sure that if the timeout timer fires after a queue has been
marked "dying" that the affected requests are finished.
Reported-by: chenxiang (M) <chenxiang66@hisilicon.com>
Fixes: commit 287922eb0b18 ("block: defer timeouts to a workqueue")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Tested-by: chenxiang (M) <chenxiang66@hisilicon.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-core.c')
| -rw-r--r-- | block/blk-core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index e8e149ccc86b..bb4fce694a60 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -333,6 +333,7 @@ EXPORT_SYMBOL(blk_stop_queue); void blk_sync_queue(struct request_queue *q) { del_timer_sync(&q->timeout); + cancel_work_sync(&q->timeout_work); if (q->mq_ops) { struct blk_mq_hw_ctx *hctx; @@ -844,6 +845,7 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id) setup_timer(&q->backing_dev_info->laptop_mode_wb_timer, laptop_mode_timer_fn, (unsigned long) q); setup_timer(&q->timeout, blk_rq_timed_out_timer, (unsigned long) q); + INIT_WORK(&q->timeout_work, NULL); INIT_LIST_HEAD(&q->queue_head); INIT_LIST_HEAD(&q->timeout_list); INIT_LIST_HEAD(&q->icq_list); |