From: Peter Zijlstra <peterz@infradead.org>
To: Vincent Donnefort <vincent.donnefort@arm.com>
Cc: Valentin Schneider <valentin.schneider@arm.com>,
tglx@linutronix.de, mingo@kernel.org, bigeasy@linutronix.de,
swood@redhat.com, juri.lelli@redhat.com,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de,
bristot@redhat.com, qais.yousef@arm.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] sched: Use cpu_dying() to fix balance_push vs hotplug-rollback
Date: Tue, 20 Apr 2021 20:07:08 +0200 [thread overview]
Message-ID: <YH8YTJfCkFJcGu30@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20210420165340.GA231208@e120877-lin.cambridge.arm.com>
On Tue, Apr 20, 2021 at 05:53:40PM +0100, Vincent Donnefort wrote:
> All good with that snippet on my end.
>
> I wonder if balance_push() shouldn't use the cpu_of() accessor
> instead of rq->cpu.
That might be a personal quirk of mine, but for code that is under
CONFIG_SMP (as all balancing code must be) I tend to prefer the more
explicit rq->cpu usage. cpu_of() obviously also works.
> Otherwise,
>
> + Reviewed-by: Vincent Donnefort <vincent.donnefort@arm.com>
Thanks!, now I get to write a Changelog :-)
next prev parent reply other threads:[~2021-04-20 18:09 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-10 14:52 [PATCH 0/3] sched: Fix remaining balance_push vs hotplug hole Peter Zijlstra
2021-03-10 14:52 ` [PATCH 1/3] cpumask: Make cpu_{online,possible,present,active}() inline Peter Zijlstra
2021-04-16 15:53 ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2021-03-10 14:53 ` [PATCH 2/3] cpumask: Introduce DYING mask Peter Zijlstra
2021-03-21 19:30 ` Qais Yousef
2021-03-22 15:07 ` Steven Rostedt
2021-04-12 10:55 ` Peter Zijlstra
2021-04-12 11:16 ` Qais Yousef
2021-04-16 15:53 ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2021-03-10 14:53 ` [PATCH 3/3] sched: Use cpu_dying() to fix balance_push vs hotplug-rollback Peter Zijlstra
2021-03-11 15:13 ` Valentin Schneider
2021-03-11 16:42 ` Peter Zijlstra
2021-04-12 12:03 ` Peter Zijlstra
2021-04-12 17:22 ` Valentin Schneider
2021-04-13 6:51 ` Peter Zijlstra
2021-04-15 8:59 ` Peter Zijlstra
2021-04-15 14:32 ` Valentin Schneider
2021-04-15 15:29 ` Peter Zijlstra
2021-04-15 15:34 ` Valentin Schneider
2021-04-19 10:56 ` Vincent Donnefort
2021-04-20 9:46 ` Vincent Donnefort
2021-04-20 14:20 ` Peter Zijlstra
2021-04-20 14:39 ` Peter Zijlstra
2021-04-20 14:58 ` Peter Zijlstra
2021-04-20 16:53 ` Vincent Donnefort
2021-04-20 18:07 ` Peter Zijlstra [this message]
2021-04-21 9:32 ` Valentin Schneider
2021-04-22 7:36 ` [tip: sched/core] cpumask/hotplug: Fix cpu_dying() state tracking tip-bot2 for Peter Zijlstra
2021-04-16 15:53 ` [tip: sched/core] sched: Use cpu_dying() to fix balance_push vs hotplug-rollback tip-bot2 for Peter Zijlstra
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