Re: (subset) [RFC PATCH 0/2] io_uring: fix io may accumulation in poll mode

[Jens Axboe <axboe@kernel.dk>]

On Wed, 10 Dec 2025 16:54:59 +0800, Fengnan Chang wrote:
> In the io_do_iopoll function, when the poll loop of iopoll_list ends, it
> is considered that the current req is the actual completed request.
> This may be reasonable for multi-queue ctx, but is problematic for
> single-queue ctx because the current request may not be done when the
> poll gets to the result. In this case, the completed io needs to wait
> for the first io on the chain to complete before notifying the user,
> which may cause io accumulation in the list.
> Our modification plan is as follows: change io_wq_work_list to normal
> list so that the iopoll_list list in it can be removed and put into the
> comp_reqs list when the request is completed. This way each io is
> handled independently and all gets processed in time.
> 
> [...]

Applied, thanks!

[1/2] blk-mq: delete task running check in blk_hctx_poll
      (no commit info)

Best regards,
-- 
Jens Axboe