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Date: Wed, 13 Jun 2018 14:40:47 +0530 From: Viresh Kumar <viresh.kumar@...aro.org> To: Daniel Lezcano <daniel.lezcano@...aro.org> Cc: Peter Zijlstra <peterz@...radead.org>, rjw@...ysocki.net, linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org, Eduardo Valentin <edubezval@...il.com>, Javi Merino <javi.merino@...nel.org>, Leo Yan <leo.yan@...aro.org>, Kevin Wangtao <kevin.wangtao@...aro.org>, Vincent Guittot <vincent.guittot@...aro.org>, Rui Zhang <rui.zhang@...el.com>, Daniel Thompson <daniel.thompson@...aro.org>, Andrea Parri <andrea.parri@...rulasolutions.com> Subject: Re: [PATCH V6] powercap/drivers/idle_injection: Add an idle injection framework On 13-06-18, 11:03, Daniel Lezcano wrote: > nr_threads(smpboot) <> nr_threads(idleinject) > > If we are facing races issues, it is because we are trying to avoid > using locks in the code path. With lock and proper refcounting that > should be solved, AFAICT there are similar races with inodes. I am not sure if locking can make things better here. We aren't using them as we don't really need them AFAIU :) -- viresh
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