From: Daniel Bristot de Oliveira <bristot@redhat.com>
To: Nicolas Saenz Julienne <nsaenzju@redhat.com>,
mingo@redhat.com, peterz@infradead.org, frederic@kernel.org,
rostedt@goodmis.org
Cc: tglx@linutronix.de, mtosatti@redhat.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/2] sched/isolation: use raw_smp_processor_id() in housekeeping_any_cpu()
Date: Tue, 1 Mar 2022 19:57:52 +0100 [thread overview]
Message-ID: <60c62d7a-940a-e424-15e0-af47cd36eacf@redhat.com> (raw)
In-Reply-To: <20220301113053.141514-1-nsaenzju@redhat.com>
On 3/1/22 12:30, Nicolas Saenz Julienne wrote:
> housekeeping_any_cpu() will return a housekeeping CPU. That's it. It'll
> try to optimize for NUMA locality and to use the local CPU, but it's not
> a requisite.
>
> So let's use raw_smp_processor_id() instead of its vanilla counterpart
> in order to allow users to query for housekeeping CPUs without having to
> disable preemption.
>
> Signed-off-by: Nicolas Saenz Julienne <nsaenzju@redhat.com>
Reviewed-by: Daniel Bristot de Oliveira <bristot@kernel.org>
-- Daniel
prev parent reply other threads:[~2022-03-01 18:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-01 11:30 Nicolas Saenz Julienne
2022-03-01 11:30 ` [PATCH v2 2/2] tracing: Avoid isolated CPUs when queueing fsnotify irqwork Nicolas Saenz Julienne
2022-03-01 18:58 ` Daniel Bristot de Oliveira
2022-03-01 15:10 ` [PATCH v2 1/2] sched/isolation: use raw_smp_processor_id() in housekeeping_any_cpu() Steven Rostedt
2022-03-01 18:57 ` Daniel Bristot de Oliveira [this message]
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