linux-kernel - Re: [PATCH] sched/core: Optimize sched_core

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Message-ID: <5443c895-b4bb-1297-400b-6a8ffd1d63b1@linux.alibaba.com>
Date:   Tue, 10 May 2022 15:37:19 +0800
From:   cruzzhao <cruzzhao@...ux.alibaba.com>
To:     mingo@...hat.com, peterz@...radead.org, juri.lelli@...hat.com,
        vincent.guittot@...aro.org, dietmar.eggemann@....com,
        rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
        bristot@...hat.com
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sched/core: Optimize sched_core_next()

ping... Is this patch necessary?

在 2022/4/25 上午1:08, Cruz Zhao 写道:
> As there is __node_2_sc() defined before, just use it instead of
> container_of() in function sched_core_next().
> 
> Signed-off-by: Cruz Zhao <CruzZhao@...ux.alibaba.com>
> ---
>  kernel/sched/core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> index d50d4dd..d3e3d6e 100644
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -284,7 +284,7 @@ static struct task_struct *sched_core_next(struct task_struct *p, unsigned long
>  	if (!node)
>  		return NULL;
>  
> -	p = container_of(node, struct task_struct, core_node);
> +	p = __node_2_sc(node);
>  	if (p->core_cookie != cookie)
>  		return NULL;
>