From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935047AbcATKaR (ORCPT ); Wed, 20 Jan 2016 05:30:17 -0500 Received: from mail-pf0-f176.google.com ([209.85.192.176]:32833 "EHLO mail-pf0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933127AbcATKaM (ORCPT ); Wed, 20 Jan 2016 05:30:12 -0500 Date: Wed, 20 Jan 2016 16:00:08 +0530 From: Viresh Kumar To: Juri Lelli Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, peterz@infradead.org, rjw@rjwysocki.net, mturquette@baylibre.com, steve.muckle@linaro.org, vincent.guittot@linaro.org, morten.rasmussen@arm.com, dietmar.eggemann@arm.com Subject: Re: [RFC PATCH 15/19] cpufreq: remove useless usage of cpufreq_governor_mutex in __cpufreq_governor Message-ID: <20160120103008.GC18097@vireshk> References: <1452533760-13787-1-git-send-email-juri.lelli@arm.com> <1452533760-13787-16-git-send-email-juri.lelli@arm.com> <20160112110658.GG1084@ubuntu> <20160115163031.GU18603@e106622-lin> <20160118055034.GC30762@vireshk> <20160119164941.GI8573@e106622-lin> <20160120072933.GF22443@vireshk> <20160120101724.GM8573@e106622-lin> <20160120101836.GB18097@vireshk> <20160120102712.GP8573@e106622-lin> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160120102712.GP8573@e106622-lin> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 20-01-16, 10:27, Juri Lelli wrote: > That is what I expect as well, but you never know ;). Perhaps not. We are talking about policy->rwsem here being used while reading the values of governor's sysfs files. And that lock is only taken for single governor case. -- viresh