linux-kernel - Re: [PATCH] sched: remove the redundant comments

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Date:   Tue, 13 Apr 2021 10:36:07 +0200
From:   Dietmar Eggemann <dietmar.eggemann@....com>
To:     Hui Su <suhui@...u.com>, mingo@...hat.com, peterz@...radead.org,
        juri.lelli@...hat.com, vincent.guittot@...aro.org,
        rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
        bristot@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sched: remove the redundant comments

On 12/04/2021 09:39, Hui Su wrote:
> Since the commit 55627e3cd22c ("sched/core: Remove rq->cpu_load[]"),
> we don't need this any more.
> 
> Signed-off-by: Hui Su <suhui@...u.com>
> ---
>  kernel/sched/sched.h | 5 -----
>  1 file changed, 5 deletions(-)
> 
> diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
> index 10a1522b1e30..2232022d8561 100644
> --- a/kernel/sched/sched.h
> +++ b/kernel/sched/sched.h
> @@ -897,11 +897,6 @@ DECLARE_STATIC_KEY_FALSE(sched_uclamp_used);
>  struct rq {
>  	/* runqueue lock: */
>  	raw_spinlock_t		lock;
> -
> -	/*
> -	 * nr_running and cpu_load should be in the same cacheline because
> -	 * remote CPUs use both these fields when doing load calculation.
> -	 */
>  	unsigned int		nr_running;
>  #ifdef CONFIG_NUMA_BALANCING
>  	unsigned int		nr_numa_running;

I forgot to remove this snippet back then. LGTM.

Add a

  Fixes: 55627e3cd22c ("sched/core: Remove rq->cpu_load[]")

line.

Reviewed-by: Dietmar Eggemann <dietmar.eggemann@....com>