[PATCH v7 1/1] nvmet: support reservation feature

[Sagi Grimberg]

On 20/03/2024 3:59, hch at lst.de wrote:
> On Tue, Mar 19, 2024 at 11:19:50AM +0800, Guixin Liu wrote:
>> I am adding a per-controller percpu-ref to ns to implement
>> preempt_and_abort, the v9 will be soon.
> Do we need that?  For blk-mq based backends just doing a queue freeze
> would be enough.  That doesn't work for bio based drivers yet, but I'd
> rather improve the block layer freezing for them rather than reimplenting
> the whole thing.

That's a neat idea, we also have file to think about though.