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Date:   Tue, 20 Sep 2022 11:01:29 +0200
From:   Frederic Weisbecker <frederic@kernel.org>
To:     Peter Zijlstra <peterz@infradead.org>
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Subject: Re: [PATCH v2 08/44] cpuidle,imx6: Push RCU-idle into driver
Message-ID: <20220920090129.GD69891@lothringen>
References: <20220919095939.761690562@infradead.org>
 <20220919101520.869531945@infradead.org>
 <20220919142123.GE58444@lothringen>
 <YymA0yJybIWLco/v@hirez.programming.kicks-ass.net>
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On Tue, Sep 20, 2022 at 10:58:59AM +0200, Peter Zijlstra wrote:
> On Mon, Sep 19, 2022 at 04:21:23PM +0200, Frederic Weisbecker wrote:
> > On Mon, Sep 19, 2022 at 11:59:47AM +0200, Peter Zijlstra wrote:
> > > Doing RCU-idle outside the driver, only to then temporarily enable it
> > > again, at least twice, before going idle is daft.
> > 
> > Hmm, what ends up calling RCU_IDLE() here? Also what about
> > cpu_do_idle()?
> 
> I've ammended patches 5-12 with a comment like:
> 
> Notably both cpu_pm_enter() and cpu_cluster_pm_enter() implicity
> re-enable RCU.
> 
> (each noting the specific sites for the relevant patch).

Thanks!