[PATCH V2 0/2] nvme: optimize passthrough IOPOLL completion for local ring context

[Jens Axboe]

On 1/20/26 10:07 AM, Keith Busch wrote:
> On Fri, Jan 16, 2026 at 03:46:36PM +0800, Ming Lei wrote:
>> Hello,
>>
>> The 1st patch passes `struct io_comp_batch *` to rq_end_io_fn callback.
>>
>> The 2nd patch completes IOPOLL uring_cmd inline in case of local ring
>> context, and improves IOPS by ~10%.
> 
> Looks good to me. It feels a little unfortunate to have to add this
> parameter to the callback just for this one use case, but maybe there'll
> be new uses for it in the future.

Yeah I agree, but the win is large enough that it's warranted. When
I originally did the task_work fix it was on my list to investigate
further, but the bug was such that it was better to get it squashed
first. And then nothing more came of it...

> Reviewed-by: Keith Busch <kbusch at kernel.org>

Thanks!

-- 
Jens Axboe