From patchwork Tue Jul 7 18:24:28 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Morten Rasmussen X-Patchwork-Id: 6738011 Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id C2B7B9F319 for ; Tue, 7 Jul 2015 18:53:51 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0579220719 for ; Tue, 7 Jul 2015 18:53:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 530B5206F9 for ; Tue, 7 Jul 2015 18:53:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934219AbbGGSsZ (ORCPT ); Tue, 7 Jul 2015 14:48:25 -0400 Received: from foss.arm.com ([217.140.101.70]:37771 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933015AbbGGSX5 (ORCPT ); Tue, 7 Jul 2015 14:23:57 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 480C15E4; Tue, 7 Jul 2015 11:24:23 -0700 (PDT) Received: from e105550-lin.cambridge.arm.com (e105550-lin.cambridge.arm.com [10.2.131.193]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 0BD0B3F23A; Tue, 7 Jul 2015 11:23:53 -0700 (PDT) From: Morten Rasmussen To: peterz@infradead.org, mingo@redhat.com Cc: vincent.guittot@linaro.org, daniel.lezcano@linaro.org, Dietmar Eggemann , yuyang.du@intel.com, mturquette@baylibre.com, rjw@rjwysocki.net, Juri Lelli , sgurrappadi@nvidia.com, pang.xunlei@zte.com.cn, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Juri Lelli Subject: [RFCv5 PATCH 45/46] sched/cpufreq_sched: modify pcpu_capacity handling Date: Tue, 7 Jul 2015 19:24:28 +0100 Message-Id: <1436293469-25707-46-git-send-email-morten.rasmussen@arm.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1436293469-25707-1-git-send-email-morten.rasmussen@arm.com> References: <1436293469-25707-1-git-send-email-morten.rasmussen@arm.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-7.7 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 --- 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)) {