[PATCH 3/3] blk-mq: directly poll requests

[Chaitanya Kulkarni]

On 3/22/23 01:37, Daniel Wagner wrote:
> On Tue, Mar 21, 2023 at 05:23:50PM -0700, Keith Busch wrote:
>> From: Keith Busch <kbusch at kernel.org>
>>
>> Polling needs a bio with a valid bi_bdev, but neither of those are
>> guaranteed for polled driver requests. Make request based polling use
>> directly use blk-mq's polling function.
>>
>> When executing a request from a polled hctx, we know the request's
>> cookie, and that it's from a live multi-queue that supports polling, so
>> we can safely skip everything that bio_poll provides.
>>
>> Link: http://lists.infradead.org/pipermail/linux-nvme/2023-March/038340.html
>> Reported-by: Martin Belanger <Martin.Belanger at dell.com>
>> Reported-by: Daniel Wagner <dwagner at suse.de>
>> Signed-off-by: Keith Busch <kbusch at kernel.org>
> I've tested the whole series and this patch alone with rdma and tcp.
>
> Tested-by: Daniel Wagner <dwagner at suse.de>
> Revieded-by: Daniel Wagner <dwagner at suse.de>

Thanks Daniel, please add my tag also.

Reviewed-by: Chaitanya Kulkarni <kch at nvidia.com>

-ck