linux-kernel - Re: [PATCH][experimantal] cpufreq: governor: Use an atomic variable for synchronization

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Message-ID: <20151208145658.GG3692@ubuntu>
Date:	Tue, 8 Dec 2015 20:26:58 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:	linux-pm@...r.kernel.org, linaro-kernel@...ts.linaro.org,
	ashwin.chaugule@...aro.org,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH][experimantal] cpufreq: governor: Use an atomic variable
 for synchronization

On 08-12-15, 15:30, Rafael J. Wysocki wrote:
> It doesn't look nice, but then having a lockless timer function is worth
> it in my view.
> 
> The code in gov_cancel_work() runs relatively rarely, but the timer
> function can run very often, so avoiding the lock in there is a priority
> to me.
> 
> Plus we can avoid disabling interrupts in two places this way.

Okay, that's good enough then. I hope you will be sending these
patches now, right? And ofcourse, we need documentation in this case
as well.

-- 
viresh
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