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From: Lukasz Luba <lukasz.luba@arm.com>
To: luoliang@kylinos.cn
Cc: Shuah Khan <skhan@linuxfoundation.org>,
	Jonathan Corbet <corbet@lwn.net>, Alex Shi <alexs@kernel.org>,
	Yanteng Si <si.yanteng@linux.dev>,
	Dongliang Mu <dzm91@hust.edu.cn>,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Rafael J. Wysocki" <rafael@kernel.org>
Subject: Re: [PATCH] sched/doc: Fix stale em_pd_energy() reference in sched-energy
Date: Thu, 9 Jul 2026 12:37:45 +0100	[thread overview]
Message-ID: <a6339f25-41b5-4186-a9d1-d46b5b36c998@arm.com> (raw)
In-Reply-To: <20260707085335.2942128-1-luoliang@kylinos.cn>



On 7/7/26 09:53, luoliang@kylinos.cn wrote:
> From: Liang Luo <luoliang@kylinos.cn>
> 
> The scheduler energy-aware placement documentation refers to the
> em_pd_energy() API, which was renamed to em_cpu_energy() in commit
> f0b5694791ce ("PM / EM: change name of em_pd_energy to em_cpu_energy").
> Update the reference to the current name.
> 
> em_cpu_energy() is the EM helper that compute_energy() in
> kernel/sched/fair.c calls to estimate a performance domain's energy
> consumption (defined in include/linux/energy_model.h).
> 
> Sync the zh_CN translation, which carries the same stale name.
> 
> Signed-off-by: Liang Luo <luoliang@kylinos.cn>
> ---
>   Documentation/scheduler/sched-energy.rst                    | 2 +-
>   Documentation/translations/zh_CN/scheduler/sched-energy.rst | 2 +-
>   2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/scheduler/sched-energy.rst b/Documentation/scheduler/sched-energy.rst
> index 4e47aaf103eb..83bac0da4869 100644
> --- a/Documentation/scheduler/sched-energy.rst
> +++ b/Documentation/scheduler/sched-energy.rst
> @@ -141,7 +141,7 @@ in its previous activation.
>   find_energy_efficient_cpu() uses compute_energy() to estimate what will be the
>   energy consumed by the system if the waking task was migrated. compute_energy()
>   looks at the current utilization landscape of the CPUs and adjusts it to
> -'simulate' the task migration. The EM framework provides the em_pd_energy() API
> +'simulate' the task migration. The EM framework provides the em_cpu_energy() API
>   which computes the expected energy consumption of each performance domain for
>   the given utilization landscape.
>   
> diff --git a/Documentation/translations/zh_CN/scheduler/sched-energy.rst b/Documentation/translations/zh_CN/scheduler/sched-energy.rst
> index fdbf6cfeea93..03dedc69839a 100644
> --- a/Documentation/translations/zh_CN/scheduler/sched-energy.rst
> +++ b/Documentation/translations/zh_CN/scheduler/sched-energy.rst
> @@ -119,7 +119,7 @@ EAS覆盖了CFS的任务唤醒平衡代码。在唤醒平衡时,它使用平
>   
>   如果唤醒的任务被迁移,find_energy_efficient_cpu()使用compute_energy()来估算
>   系统将消耗多少能量。compute_energy()检查各CPU当前的利用率情况,并尝试调整来
> -“模拟”任务迁移。EM框架提供了API em_pd_energy()计算每个性能域在给定的利用率条件
> +“模拟”任务迁移。EM框架提供了API em_cpu_energy()计算每个性能域在给定的利用率条件
>   下的预期能量消耗。
>   
>   下面详细介绍一个优化能量消耗的任务放置决策的例子。


Good catch Liang. I've missed that doc bit back then, thank you.

Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>


  parent reply	other threads:[~2026-07-09 11:37 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-07  8:53 [PATCH] sched/doc: Fix stale em_pd_energy() reference in sched-energy luoliang
2026-07-08  1:08 ` Alex Shi
2026-07-09  2:12 ` luoliang
2026-07-09 11:37 ` Lukasz Luba [this message]
2026-07-09 11:41 ` Dongliang Mu
2026-07-10 19:14 ` Jonathan Corbet

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