Hi Ming On 09/06/2018 06:09 AM, Ming Lei wrote: > nvme_dev_add() still may call freeze & unfreeze queue, so your patch > can't avoid draining queue completely here. Yes, I know this. We still need to freeze queue when update nr_hw_queues. But we move forward a step at least. :) We don't need to drain request queue in normal case of nvme_reset_work. As for updating nr_hw_queues, we could try some other method on it next. Thanks Jianchao
