blk-mq: Drop explicit timeout sync in hotplug
After commit 287922eb0b
("block: defer timeouts to a workqueue"),
deleting the timeout work after freezing the queue shouldn't be
necessary, since the synchronization is already enforced by the
acquisition of a q_usage_counter reference in blk_mq_timeout_work.
Signed-off-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>
Reviewed-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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parent
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@ -2220,16 +2220,9 @@ static void blk_mq_queue_reinit_work(void)
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*/
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list_for_each_entry(q, &all_q_list, all_q_node)
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blk_mq_freeze_queue_start(q);
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list_for_each_entry(q, &all_q_list, all_q_node) {
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list_for_each_entry(q, &all_q_list, all_q_node)
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blk_mq_freeze_queue_wait(q);
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/*
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* timeout handler can't touch hw queue during the
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* reinitialization
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*/
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del_timer_sync(&q->timeout);
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}
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list_for_each_entry(q, &all_q_list, all_q_node)
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blk_mq_queue_reinit(q, &cpuhp_online_new);
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