On Mon, 2017-06-05 at 23:59 +0800, Ming Lei wrote: > This patch reverts commit 2719aa217e0d02(blk-mq: don't use > sync workqueue flushing from drivers) because only > blk_mq_quiesce_queue() need the sync flush, and now > we don't need to stop queue any more, so revert it. > > Also changes to cancel_delayed_work() in blk_mq_stop_hw_queue(). Reviewed-by: Bart Van Assche <Bart.VanAssche@xxxxxxxxxxx>