From patchwork Fri Aug 15 07:01:25 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuansheng Liu X-Patchwork-Id: 4726351 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 [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 5C0CE9F377 for ; Fri, 15 Aug 2014 07:19:47 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 934C5201ED for ; Fri, 15 Aug 2014 07:19:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BEE90201E4 for ; Fri, 15 Aug 2014 07:19:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754838AbaHOHTZ (ORCPT ); Fri, 15 Aug 2014 03:19:25 -0400 Received: from mga03.intel.com ([143.182.124.21]:36866 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754819AbaHOHTX (ORCPT ); Fri, 15 Aug 2014 03:19:23 -0400 Received: from azsmga001.ch.intel.com ([10.2.17.19]) by azsmga101.ch.intel.com with ESMTP; 15 Aug 2014 00:19:22 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,868,1400050800"; d="scan'208";a="469012716" Received: from shsibuild003.sh.intel.com ([10.239.146.212]) by azsmga001.ch.intel.com with ESMTP; 15 Aug 2014 00:19:20 -0700 From: Chuansheng Liu To: peterz@infradead.org, luto@amacapital.net, daniel.lezcano@linaro.org, rjw@rjwysocki.net, mingo@redhat.com Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, changcheng.liu@intel.com, xiaoming.wang@intel.com, souvik.k.chakravarty@intel.com, Chuansheng Liu Subject: [PATCH 3/3] cpuidle: Using the kick_all_cpus_sync() to wake up all cpus Date: Fri, 15 Aug 2014 15:01:25 +0800 Message-Id: <1408086085-16691-3-git-send-email-chuansheng.liu@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1408086085-16691-1-git-send-email-chuansheng.liu@intel.com> References: <1408086085-16691-1-git-send-email-chuansheng.liu@intel.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=-7.6 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 Current latency notify callback has the same function with kick_all_cpus_sync(). Here use it directly to remove the redundant code. Signed-off-by: Chuansheng Liu --- drivers/cpuidle/cpuidle.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index ee9df5e..7827375 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -530,11 +530,6 @@ EXPORT_SYMBOL_GPL(cpuidle_register); #ifdef CONFIG_SMP -static void smp_callback(void *v) -{ - /* we already woke the CPU up, nothing more to do */ -} - /* * This function gets called when a part of the kernel has a new latency * requirement. This means we need to get all processors out of their C-state, @@ -544,7 +539,7 @@ static void smp_callback(void *v) static int cpuidle_latency_notify(struct notifier_block *b, unsigned long l, void *v) { - smp_call_function(smp_callback, NULL, 1); + kick_all_cpus_sync(); return NOTIFY_OK; }