From: sashiko-bot@kernel.org
To: "Shrikanth Hegde" <sshegde@linux.ibm.com>
Cc: virtualization@lists.linux.dev,
"Eugenio Perez" <eperezma@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [PATCH v14 02/13] cpumask: Introduce cpumask_intersects_and
Date: Mon, 28 Sep 2026 05:44:41 +0000 [thread overview]
Message-ID: <20260928054441.8E4621F000FF@smtp.kernel.org> (raw)
In-Reply-To: <20260928053728.797539-3-sshegde@linux.ibm.com>
> Introduce bitmap_intersects_and() to determine whether the intersection
> of three bitmaps is non-empty. Unlike cpumask_first_and_and(), this
> returns immediately when an intersecting word is found and does not
> calculate the first matching bit.
>
> Add cpumask_intersects_and() as the corresponding cpumask wrapper.
>
> A subsequent patch uses the helper to determine whether a task
> has a CPU that is present in its affinity mask, the preferred CPU mask,
> and task possible CPU mask.
>
> Suggested-by: Yury Norov <yury.norov@gmail.com>
> Reviewed-by: Yury Norov <yury.norov@gmail.com>
> Signed-off-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260928053728.797539-1-sshegde@linux.ibm.com?part=2
next prev parent reply other threads:[~2026-09-28 5:44 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-28 5:37 [PATCH v14 00/13] sched, steal_governor: Introduce preferred CPUs and steal-driven vCPU backoff Shrikanth Hegde
2026-09-28 5:37 ` [PATCH v14 01/13] sched/cputime: Add kcpustat_field_total helper Shrikanth Hegde
2026-09-28 5:54 ` sashiko-bot
2026-09-28 5:37 ` [PATCH v14 02/13] cpumask: Introduce cpumask_intersects_and Shrikanth Hegde
2026-09-28 5:44 ` sashiko-bot [this message]
2026-09-28 5:37 ` [PATCH v14 03/13] sched/docs: Document cpu_preferred_mask and Preferred CPU concept Shrikanth Hegde
2026-09-28 5:42 ` sashiko-bot
2026-09-28 5:37 ` [PATCH v14 04/13] cpumask: Introduce cpu_preferred_mask Shrikanth Hegde
2026-09-28 5:46 ` sashiko-bot
2026-09-28 5:37 ` [PATCH v14 05/13] sysfs: Add preferred CPU file Shrikanth Hegde
2026-09-28 5:47 ` sashiko-bot
2026-09-28 5:37 ` [PATCH v14 06/13] sched/core: Try to use a preferred CPU in is_cpu_allowed Shrikanth Hegde
2026-09-28 6:00 ` sashiko-bot
2026-09-28 6:48 ` Shrikanth Hegde
2026-09-28 5:37 ` [PATCH v14 07/13] sched/fair: Load balance only among preferred CPUs Shrikanth Hegde
2026-09-28 5:55 ` sashiko-bot
2026-09-28 5:37 ` [PATCH v14 08/13] sched/core: Push current task from non preferred CPU Shrikanth Hegde
2026-09-28 5:56 ` sashiko-bot
2026-09-28 5:37 ` [PATCH v14 09/13] sched/debug: Add migration stats due to non preferred CPUs Shrikanth Hegde
2026-09-28 5:48 ` sashiko-bot
2026-09-29 12:18 ` Nathan Chancellor
2026-09-29 12:43 ` Shrikanth Hegde
2026-09-29 14:57 ` Shrikanth Hegde
2026-09-28 5:37 ` [PATCH v14 10/13] virt: Introduce steal governor driver Shrikanth Hegde
2026-09-28 5:47 ` sashiko-bot
2026-09-28 5:37 ` [PATCH v14 11/13] virt/steal_governor: Add control knobs for handling steal values Shrikanth Hegde
2026-09-28 5:46 ` sashiko-bot
2026-09-28 5:37 ` [PATCH v14 12/13] virt/steal_governor: Implement steal_governor policy loop Shrikanth Hegde
2026-09-28 5:51 ` sashiko-bot
2026-09-28 6:52 ` Shrikanth Hegde
2026-09-28 5:37 ` [PATCH v14 13/13] virt/steal_governor: Enable the driver Shrikanth Hegde
2026-09-28 5:48 ` sashiko-bot
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