linux-kernel - Re: [PATCH v2 1/6] cgroup/cpuset: Rename functions dealing with DEADLINE accounting

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Date:   Wed, 3 May 2023 13:54:26 -0400
From:   Waiman Long <longman@...hat.com>
To:     Juri Lelli <juri.lelli@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Qais Yousef <qyousef@...alina.io>, Tejun Heo <tj@...nel.org>,
        Zefan Li <lizefan.x@...edance.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Hao Luo <haoluo@...gle.com>
Cc:     Dietmar Eggemann <dietmar.eggemann@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        linux-kernel@...r.kernel.org, luca.abeni@...tannapisa.it,
        claudio@...dence.eu.com, tommaso.cucinotta@...tannapisa.it,
        bristot@...hat.com, mathieu.poirier@...aro.org,
        cgroups@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Wei Wang <wvw@...gle.com>, Rick Yiu <rickyiu@...gle.com>,
        Quentin Perret <qperret@...gle.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        Sudeep Holla <sudeep.holla@....com>
Subject: Re: [PATCH v2 1/6] cgroup/cpuset: Rename functions dealing with
 DEADLINE accounting


On 5/3/23 03:22, Juri Lelli wrote:
> rebuild_root_domains() and update_tasks_root_domain() have neutral
> names, but actually deal with DEADLINE bandwidth accounting.
>
> Rename them to use 'dl_' prefix so that intent is more clear.
>
> No functional change.
>
> Suggested-by: Qais Yousef <qyousef@...alina.io>
> Signed-off-by: Juri Lelli <juri.lelli@...hat.com>
> ---
>   kernel/cgroup/cpuset.c | 8 ++++----
>   1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
> index e4ca2dd2b764..428ab46291e2 100644
> --- a/kernel/cgroup/cpuset.c
> +++ b/kernel/cgroup/cpuset.c
> @@ -1066,7 +1066,7 @@ static int generate_sched_domains(cpumask_var_t **domains,
>   	return ndoms;
>   }
>   
> -static void update_tasks_root_domain(struct cpuset *cs)
> +static void dl_update_tasks_root_domain(struct cpuset *cs)
>   {
>   	struct css_task_iter it;
>   	struct task_struct *task;
> @@ -1079,7 +1079,7 @@ static void update_tasks_root_domain(struct cpuset *cs)
>   	css_task_iter_end(&it);
>   }
>   
> -static void rebuild_root_domains(void)
> +static void dl_rebuild_rd_accounting(void)
>   {
>   	struct cpuset *cs = NULL;
>   	struct cgroup_subsys_state *pos_css;
> @@ -1107,7 +1107,7 @@ static void rebuild_root_domains(void)
>   
>   		rcu_read_unlock();
>   
> -		update_tasks_root_domain(cs);
> +		dl_update_tasks_root_domain(cs);
>   
>   		rcu_read_lock();
>   		css_put(&cs->css);
> @@ -1121,7 +1121,7 @@ partition_and_rebuild_sched_domains(int ndoms_new, cpumask_var_t doms_new[],
>   {
>   	mutex_lock(&sched_domains_mutex);
>   	partition_sched_domains_locked(ndoms_new, doms_new, dattr_new);
> -	rebuild_root_domains();
> +	dl_rebuild_rd_accounting();
>   	mutex_unlock(&sched_domains_mutex);
>   }
>   
Reviewed-by: Waiman Long <longman@...hat.com>