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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

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