On 11/15/2017 05:08 PM, Ming Lei wrote:
> Once blk_set_queue_dying() is done in blk_cleanup_queue(), we call
> blk_freeze_queue() and wait for q->q_usage_counter becoming zero. But if
> there are tasks blocked in get_request(), q->q_usage_counter can never
> become zero. So we have to wake up all these tasks in blk_set_queue_dying()
> first.
Looks correct to me, since we do exclusive waits on that waitqueue.
Applied for this series.
> Fixes: 3ef28e83ab157997(block: generic request_queue reference counting)
Note that the format here is ("patch title")
--
Jens Axboe
