linux-kernel - Re: [PATCH V4] powercap/drivers/idle_injection: Add an idle injection framework

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Message-ID: <20180605055334.mnffwgcvca3zzwub@vireshk-i7>
Date:   Tue, 5 Jun 2018 11:23:34 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     rjw@...ysocki.net, edubezval@...il.com, kevin.wangtao@...aro.org,
        leo.yan@...aro.org, vincent.guittot@...aro.org,
        linux-kernel@...r.kernel.org, javi.merino@...nel.org,
        rui.zhang@...el.com, linux-pm@...r.kernel.org,
        daniel.thompson@...aro.org
Subject: Re: [PATCH V4] powercap/drivers/idle_injection: Add an idle
 injection framework

On 05-06-18, 07:48, Daniel Lezcano wrote:
> As soon as we reach complete(), no timer can be set because of the
> condition before.

Why not ? We aren't using any locks here and it is possible that run_duration_ms
is set to 0 from idle_injection_stop() only after the first thread has restarted
the hrtimer. Isn't it ?

-- 
viresh