linux-kernel - Re: [PATCH 09/12] PM / OPP: Move away from RCU locking

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Message-ID: <20170110042858.GD6332@vireshk-i7>
Date:   Tue, 10 Jan 2017 09:58:58 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Stephen Boyd <sboyd@...eaurora.org>
Cc:     Rafael Wysocki <rjw@...ysocki.net>,
        Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
        linaro-kernel@...ts.linaro.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>
Subject: Re: [PATCH 09/12] PM / OPP: Move away from RCU locking

On 09-01-17, 15:57, Stephen Boyd wrote:
> I suppose this is one thing RCU was being used for, marking OPPs
> available and then having these "getter" APIs fail if the OPPs go
> away. But that was never right because the OPP could have been
> made unavailable after this function returned and things still
> wouldn't work.

Right, it was all so confusing with RCUs in OPP library :)

-- 
viresh