linux-kernel - Re: [PATCH V4 1/7] cpufreq: Merge cpufreq_offline

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Message-ID: <20160211114633.GB28558@vireshk>
Date:	Thu, 11 Feb 2016 17:16:33 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	"Rafael J. Wysocki" <rafael@...nel.org>
Cc:	Rafael Wysocki <rjw@...ysocki.net>,
	Juri Lelli <juri.lelli@....com>,
	Lists linaro-kernel <linaro-kernel@...ts.linaro.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Shilpasri G Bhat <shilpa.bhat@...ux.vnet.ibm.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V4 1/7] cpufreq: Merge cpufreq_offline_prepare/finish
 routines

On 11-02-16, 02:15, Rafael J. Wysocki wrote:
> And one question tangentially related to this patch: Would it be
> possible to avoid calling __cpufreq_governor(_EXIT) for CPU offline?
> 
> The fact that we still carry out the whole governor teardown at that
> point is slightly disturbing, as in theory it should be possible to
> keep the governor attributes in place across offline/online.

Will think about that after the current code is stable a bit. It should be
possible, but need to see if it is worth it.

-- 
viresh