lkml.org 
[lkml]   [2018]   [Feb]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] blk: optimization for classic polling
From
Date

> 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!

\
 
 \ /
  Last update: 2018-02-08 17:03    [W:0.129 / U:3.728 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site