[PATCH] nvme: allow queues the chance to quiesce after freezing them

[Christoph Hellwig]

On Thu, Nov 19, 2015 at 10:20:12PM +0000, Keith Busch wrote:
> I don't see how we can disable the controller to forcefully end commands
> with merged probe and reset work, and thinking these need to be kept
> separate. Timeouts are done in a workqueue now, so can we do controller
> shutdown inline with the timeout handler?

That's one of the two options I'm exploring.  The other is a new request
flag that tells the block later not to reuse the tag after a return from
the timeout handler.