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From: sashiko-bot@kernel.org
To: "Vincent Guittot" <vincent.guittot@linaro.org>,
	sched-ext@lists.linux.dev
Subject: Re: [PATCH 12/20 v3] sched/fair: Support not wakeup case in select_idle_sibling
Date: Fri, 06 Nov 2026 15:51:53 +0000	[thread overview]
Message-ID: <sashiko-outbox-201739@kernel.org> (raw)
In-Reply-To: <20261106151947.3991524-13-vincent.guittot@linaro.org>

Thank you for your contribution! Sashiko AI review found 1 potential
issue to consider:
- [Low] sched/fair: kernel-doc parameter mismatch for @rq in
  idle_rq_without()
--

commit ab3889b91b4dc4e984d6982f09014756fc8d7899
Author: Vincent Guittot <vincent.guittot@linaro.org>

sched/fair: Support not wakeup case in select_idle_sibling

This commit updates choose_idle_cpu() to check whether a runqueue would be
idle without an already-enqueued task p, and renames idle_cpu_without() to
idle_rq_without() to take a struct rq pointer.

> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index f2a0d2c2bb632..980eda9c935a8 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c

[ ... ]

> @@ -12968,23 +12985,21 @@ static unsigned int task_running_on_cpu(int cpu, struct task_struct *p)
>  }
>  
>  /**
> - * idle_cpu_without - would a given CPU be idle without p ?
> + * idle_rq_without - would a given CPU be idle without p ?
>   * @cpu: the processor on which idleness is tested.
>   * @p: task which should be ignored.
>   *
>   * Return: 1 if the CPU would be idle. 0 otherwise.
>   */
> -static int idle_cpu_without(int cpu, struct task_struct *p)
> +static int idle_rq_without(struct rq *rq, struct task_struct *p)

[Severity: Low]
Should the kernel-doc comment for idle_rq_without() document @rq instead
of @cpu to match the updated parameter list and avoid W=1 kernel-doc
warnings?

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20261106151947.3991524-2-vincent.guittot@linaro.org?part=12

  reply	other threads:[~2026-11-06 15:51 UTC|newest]

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-06 15:19 [PATCH 00/18 v3] Improving latency of short slice tasks Vincent Guittot
2026-11-06 15:19 ` [PATCH 01/20 v3] sched/eevdf: Decay positive lag of sleeping entities Vincent Guittot
2026-11-06 15:43   ` sashiko-bot
2026-11-06 15:19 ` [PATCH 02/20 v3] sched/eevdf: Reset lag at wakeup when prev CPU has been idle Vincent Guittot
2026-11-06 16:22   ` Kayra Cizmeci
2026-11-09 15:27     ` Vincent Guittot
2026-11-09 15:45       ` Peter Zijlstra
2026-11-09 16:27         ` Vincent Guittot
2026-11-11  9:03           ` Peter Zijlstra
2026-11-12  7:02             ` Vincent Guittot
2026-11-11 10:04   ` K Prateek Nayak
2026-11-12  7:33     ` Vincent Guittot
2026-11-06 15:19 ` [PATCH 03/20 v3] sched/eevdf: Reset lag at wakeup when migrating and prev " Vincent Guittot
2026-11-06 18:05   ` Kayra Cizmeci
2026-11-06 15:19 ` [PATCH 04/20 v3] sched/eevdf: Reset lag when waking up on idle cpu Vincent Guittot
2026-11-06 18:39   ` Kayra Cizmeci
2026-11-06 15:19 ` [PATCH 05/20 v3] sched/eevdf: Add per cpu cached min_slice Vincent Guittot
2026-11-07  6:53   ` Kayra Cizmeci
2026-11-09 15:27     ` Vincent Guittot
2026-11-06 15:19 ` [PATCH 06/20 v3] sched/eevdf: Add min slice check when selecting CPU Vincent Guittot
2026-11-06 15:40   ` sashiko-bot
2026-11-07  8:57   ` Kayra Cizmeci
2026-11-09 13:55     ` Peter Zijlstra
2026-11-09 14:15       ` Kayra Cizmeci
2026-11-09 15:37         ` Vincent Guittot
2026-11-09 15:34     ` Vincent Guittot
2026-11-09 15:55     ` Vincent Guittot
2026-11-09 19:56       ` Kayra Cizmeci
2026-11-10 13:32         ` Vincent Guittot
2026-11-06 15:19 ` [PATCH 07/20 v3] sched/fair: Prepare select_task_rq_fair() to be called for new cases Vincent Guittot
2026-11-06 15:39   ` sashiko-bot
2026-11-06 15:19 ` [PATCH 08/20 v3] sched/fair: Add push task mechanism for fair Vincent Guittot
2026-11-06 16:15   ` sashiko-bot
2026-11-09 14:43   ` Peter Zijlstra
2026-11-09 16:07     ` Vincent Guittot
2026-11-11  8:59       ` Peter Zijlstra
2026-11-12  7:01         ` Vincent Guittot
2026-11-09 15:54   ` Peter Zijlstra
2026-11-09 16:14     ` Vincent Guittot
2026-11-11  9:01       ` Peter Zijlstra
2026-11-12  7:01         ` Vincent Guittot
2026-11-12  7:36           ` Vincent Guittot
2026-11-12  9:49           ` Peter Zijlstra
2026-11-12 11:29             ` Vincent Guittot
2026-11-12 12:19               ` Peter Zijlstra
2026-11-06 15:19 ` [PATCH 09/20 v3] sched/fair: Optimize " Vincent Guittot
2026-11-06 16:00   ` sashiko-bot
2026-11-06 15:19 ` [PATCH 10/20 v3] sched/core: Add rq flag to tick parameters Vincent Guittot
2026-11-06 15:19 ` [PATCH 11/20 v3] sched/fair: Add force push task mechanism for fair Vincent Guittot
2026-11-06 16:16   ` sashiko-bot
2026-11-06 15:19 ` [PATCH 12/20 v3] sched/fair: Support not wakeup case in select_idle_sibling Vincent Guittot
2026-11-06 15:51   ` sashiko-bot [this message]
2026-11-13  5:31   ` kernel test robot
2026-11-06 15:19 ` [PATCH 13/20] sched/eevdf: Try to push short slice task on a better CPU Vincent Guittot
2026-11-06 16:12   ` sashiko-bot
2026-11-06 15:19 ` [PATCH 14/20 v3] sched/eevdf: Push short slice task that are not picked Vincent Guittot
2026-11-06 16:14   ` sashiko-bot
2026-11-06 15:19 ` [PATCH 15/20 v3] sched/fair: Enable push task for preempt short Vincent Guittot
2026-11-06 16:27   ` sashiko-bot
2026-11-06 15:19 ` [PATCH 16/20 v3] energy model: Add a get previous state function Vincent Guittot
2026-11-10 19:55   ` Rafael J. Wysocki (Intel)
2026-11-06 15:19 ` [PATCH 17/20 v3] sched/fair: Rework feec() to use cost instead of spare capacity Vincent Guittot
2026-11-06 16:30   ` sashiko-bot
2026-11-06 15:19 ` [PATCH 18/20 v3] energy model: Remove unused em_cpu_energy() Vincent Guittot
2026-11-06 15:19 ` [PATCH 19/20 v3] sched/fair: Take into account slice in EAS Vincent Guittot
2026-11-06 16:26   ` sashiko-bot
2026-11-06 15:19 ` [PATCH 20/20 v3] sched/fair: Fix tasks stacking on same idle CPU Vincent Guittot
2026-11-06 16:53   ` sashiko-bot

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