linux-kernel - Re: [PATCH] sched/pelt: fix update of blocked pelt ordering

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Message-ID: <20191030134901.GP4131@hirez.programming.kicks-ass.net>
Date:   Wed, 30 Oct 2019 14:49:01 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Vincent Guittot <vincent.guittot@...aro.org>
Cc:     linux-kernel@...r.kernel.org, mingo@...hat.com,
        dietmar.eggemann@....com, juri.lelli@...hat.com,
        rostedt@...dmis.org, mgorman@...e.de, dsmythies@...us.net
Subject: Re: [PATCH] sched/pelt: fix update of blocked pelt ordering

On Wed, Oct 30, 2019 at 12:18:29PM +0100, Vincent Guittot wrote:
> update_cfs_rq_load_avg() can call cpufreq_update_util() to trigger an
> update of the frequency. Make sure that RT, DL and IRQ pelt signals have
> been updated before calling cpufreq
> 
> Fixes: 371bf4273269 ("sched/rt: Add rt_rq utilization tracking")
> Fixes: 3727e0e16340 ("sched/dl: Add dl_rq utilization tracking")
> Fixes: 91c27493e78d ("sched/irq: Add IRQ utilization tracking")
> Signed-off-by: Vincent Guittot <vincent.guittot@...aro.org>

Thanks!