linux-kernel - Re: [PATCH] docs: scheduler: Fix outdated parameter of rebalance

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Date:   Mon, 10 Jan 2022 20:38:04 +0800
From:   Tang Yizhou <tangyizhou@...wei.com>
To:     <peterz@...radead.org>, <mingo@...hat.com>,
        <vincent.guittot@...aro.org>, <dietmar.eggemann@....com>,
        <corbet@....net>
CC:     <linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        <zhengbin13@...wei.com>, <tangyeechou@...il.com>
Subject: Re: [PATCH] docs: scheduler: Fix outdated parameter of
 rebalance_domains

Friendly ping.
Any feedback?

On 2021/12/21 11:18, Tang Yizhou wrote:
> According to the function prototype of rebalance_domains(), its first
> parameter is *rq* and the document need to be updated.
> 
> Signed-off-by: Tang Yizhou <tangyizhou@...wei.com>
> ---
>  Documentation/scheduler/sched-domains.rst | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/scheduler/sched-domains.rst b/Documentation/scheduler/sched-domains.rst
> index 84dcdcd2911c..e57ad28301bd 100644
> --- a/Documentation/scheduler/sched-domains.rst
> +++ b/Documentation/scheduler/sched-domains.rst
> @@ -37,10 +37,10 @@ rebalancing event for the current runqueue has arrived. The actual load
>  balancing workhorse, run_rebalance_domains()->rebalance_domains(), is then run
>  in softirq context (SCHED_SOFTIRQ).
>  
> -The latter function takes two arguments: the current CPU and whether it was idle
> -at the time the scheduler_tick() happened and iterates over all sched domains
> -our CPU is on, starting from its base domain and going up the ->parent chain.
> -While doing that, it checks to see if the current domain has exhausted its
> +The latter function takes two arguments: the runqueue of current CPU and whether
> +the CPU was idle at the time the scheduler_tick() happened and iterates over all
> +sched domains our CPU is on, starting from its base domain and going up the ->parent
> +chain. While doing that, it checks to see if the current domain has exhausted its
>  rebalance interval. If so, it runs load_balance() on that domain. It then checks
>  the parent sched_domain (if it exists), and the parent of the parent and so
>  forth.
>