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Date: Fri, 11 Sep 2020 12:11:32 +0200 From: peterz@...radead.org To: Viresh Kumar <viresh.kumar@...aro.org> Cc: Rafael Wysocki <rjw@...ysocki.net>, linux-pm@...r.kernel.org, Vincent Guittot <vincent.guittot@...aro.org>, Lukasz Luba <lukasz.luba@....com>, cristian.marussi@....com, sudeep.holla@....com, linux-kernel@...r.kernel.org Subject: Re: [PATCH 1/4] cpufreq: stats: Defer stats update to cpufreq_stats_record_transition() On Wed, Sep 02, 2020 at 12:54:41PM +0530, Viresh Kumar wrote: > + atomic_t reset_pending; > + atomic_set(&stats->reset_pending, 0); > + if (atomic_read(&stats->reset_pending)) > + bool pending = atomic_read(&stats->reset_pending); > + atomic_set(&stats->reset_pending, 1); > + bool pending = atomic_read(&stats->reset_pending); > + if (atomic_read(&stats->reset_pending)) What do you think atomic_t is doing for you?
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