Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753594AbbGIQy6 (ORCPT ); Thu, 9 Jul 2015 12:54:58 -0400 Received: from eu-smtp-delivery-143.mimecast.com ([146.101.78.143]:11606 "EHLO eu-smtp-delivery-143.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752738AbbGIQyv convert rfc822-to-8bit (ORCPT ); Thu, 9 Jul 2015 12:54:51 -0400 Message-ID: <559EA767.3030102@arm.com> Date: Thu, 09 Jul 2015 17:55:03 +0100 From: Juri Lelli User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: Michael Turquette , Morten Rasmussen , "peterz@infradead.org" , "mingo@redhat.com" CC: "vincent.guittot@linaro.org" , "daniel.lezcano@linaro.org" , Dietmar Eggemann , "yuyang.du@intel.com" , "rjw@rjwysocki.net" , "sgurrappadi@nvidia.com" , "pang.xunlei@zte.com.cn" , "linux-kernel@vger.kernel.org" , "linux-pm@vger.kernel.org" Subject: Re: [RFCv5 PATCH 45/46] sched/cpufreq_sched: modify pcpu_capacity handling References: <1436293469-25707-1-git-send-email-morten.rasmussen@arm.com> <1436293469-25707-46-git-send-email-morten.rasmussen@arm.com> <20150708164235.9112.55369@quantum> In-Reply-To: <20150708164235.9112.55369@quantum> X-OriginalArrivalTime: 09 Jul 2015 16:54:48.0391 (UTC) FILETIME=[F71B6570:01D0BA67] X-MC-Unique: pm1All1PQWOQPSxXX5oJpw-1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1776 Lines: 59 Hi Mike, On 08/07/15 17:42, Michael Turquette wrote: > Quoting Morten Rasmussen (2015-07-07 11:24:28) >> From: Juri Lelli >> >> Use the cpu argument of cpufreq_sched_set_cap() to handle per_cpu writes, >> as the thing can be called remotely (e.g., from load balacing code). >> >> cc: Ingo Molnar >> cc: Peter Zijlstra >> >> Signed-off-by: Juri Lelli > > Looks good to me. Feel free to add my Reviewed-by or Acked-by as > appropriate. > Thanks for reviewing it! :) Best, - Juri > Regards, > Mike > >> --- >> kernel/sched/cpufreq_sched.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/kernel/sched/cpufreq_sched.c b/kernel/sched/cpufreq_sched.c >> index 06ff183..b81ac779 100644 >> --- a/kernel/sched/cpufreq_sched.c >> +++ b/kernel/sched/cpufreq_sched.c >> @@ -151,7 +151,7 @@ void cpufreq_sched_set_cap(int cpu, unsigned long capacity) >> unsigned long capacity_max = 0; >> >> /* update per-cpu capacity request */ >> - __this_cpu_write(pcpu_capacity, capacity); >> + per_cpu(pcpu_capacity, cpu) = capacity; >> >> policy = cpufreq_cpu_get(cpu); >> if (IS_ERR_OR_NULL(policy)) { >> -- >> 1.9.1 >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> Please read the FAQ at http://www.tux.org/lkml/ > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/