On Wed, Jul 12, 2017 at 02:20:58AM +0800, Ming Lei wrote: > This interfaces will be removed soon, so use quiesce and > unquiesce instead, which should be more safe. > > The only one usage will be removed in the following > congestion control patches. Would it be better to simply fix blk_mq_{start/stop}_stopped_hw_queues rather than introducing a new interface? Roger.