[PATCH 2/2] nvme-pci: don't wait freeze during resetting

[Christoph Hellwig]

On Sun, Aug 21, 2022 at 04:47:54PM +0800, Ming Lei wrote:
> First it isn't necessary to call nvme_wait_freeze in nvme_reset_work().
> If tagset isn't allocated, there can't be any inflight IOs; otherwise
> blk_mq_update_nr_hw_queues can freeze & wait queues.
> 
> Second, since commit bdd6316094e0 ("block: Allow unfreezing of a queue
> while requests are in progress"), it is fine to unfreeze queue without
> draining inflight IOs.

The apple, RDMA, and TCP drivers seem to follow the same wait_free
pattern, so I think we'll need patches for them as well.