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SubjectRe: [PATCH] blk: optimization for classic polling
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> I think it'd be simpler to have blk_poll set it back to running if
> need_resched is true rather than repeat this patter across all the
> callers:
>
> ---
> diff --git a/block/blk-mq.c b/block/blk-mq.c
> index df93102e2149..40285fe1c8ad 100644
> --- a/block/blk-mq.c
> +++ b/block/blk-mq.c
> @@ -3164,6 +3164,7 @@ static bool __blk_mq_poll(struct blk_mq_hw_ctx *hctx, struct request *rq)
> cpu_relax();
> }
>
> + set_current_state(TASK_RUNNING);
> return false;
> }
>
> --

Nice!

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