From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 405ACECE58F for ; Wed, 16 Oct 2019 02:57:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 185B421848 for ; Wed, 16 Oct 2019 02:57:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571194667; bh=DihgHlZEMX3o1zUkM1gf7Grg+nBtfSOlyb+CoUK+JT8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=M9W5VV0c+JtPkotEZCZ/AArug6GpC5aR+LJyfgNDAqC5fJfwZAqCTesgUB27CcmXK 4nWq+TUbdmlp2gCqIzxyvG1mPzy8WYxedW52OsZFNefmPxHDsrOiqk246N1EzSDmS5 XK4cZ8vhVwA+iKzx/FbHwtG326kv34i2553qLKWY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390800AbfJPC5p (ORCPT ); Tue, 15 Oct 2019 22:57:45 -0400 Received: from mail.kernel.org ([198.145.29.99]:53424 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390789AbfJPC5m (ORCPT ); Tue, 15 Oct 2019 22:57:42 -0400 Received: from lenoir.home (lfbn-ncy-1-150-155.w83-194.abo.wanadoo.fr [83.194.232.155]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 56F5E21835; Wed, 16 Oct 2019 02:57:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571194661; bh=DihgHlZEMX3o1zUkM1gf7Grg+nBtfSOlyb+CoUK+JT8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uLn5DIcEBu/dZJ4AktKW+T1QQaa85Ia/ASKaiTQb1JfwVnB5Gep0J7NOmhftFyEDx wKBhXzL/D1DlpO2I59yMRh8yAIwQmau29/iGE2ofHMk8DD1QvTOP3JcJfasdvgdK06 p2TMI2zQz41gySU0WX+f3qK6NWSNZIiuXSAl+5sA= From: Frederic Weisbecker To: LKML Cc: Frederic Weisbecker , Jacek Anaszewski , Peter Zijlstra , Wanpeng Li , "Rafael J . Wysocki" , Rik van Riel , Thomas Gleixner , Yauheni Kaliuta , Ingo Molnar , Viresh Kumar , Pavel Machek Subject: [PATCH 12/14] procfs: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM Date: Wed, 16 Oct 2019 04:56:58 +0200 Message-Id: <20191016025700.31277-13-frederic@kernel.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191016025700.31277-1-frederic@kernel.org> References: <20191016025700.31277-1-frederic@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Now that we have a vtime safe kcpustat accessor for CPUTIME_SYSTEM, use it to start fixing frozen kcpustat values on nohz_full CPUs. Reported-by: Yauheni Kaliuta Signed-off-by: Frederic Weisbecker Cc: Yauheni Kaliuta Cc: Thomas Gleixner Cc: Rik van Riel Cc: Peter Zijlstra Cc: Wanpeng Li Cc: Ingo Molnar --- fs/proc/stat.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/proc/stat.c b/fs/proc/stat.c index 80c305f206bb..5c6bd0ae3802 100644 --- a/fs/proc/stat.c +++ b/fs/proc/stat.c @@ -124,7 +124,7 @@ static int show_stat(struct seq_file *p, void *v) user += kcs->cpustat[CPUTIME_USER]; nice += kcs->cpustat[CPUTIME_NICE]; - system += kcs->cpustat[CPUTIME_SYSTEM]; + system += kcpustat_field(kcs, CPUTIME_SYSTEM, i); idle += get_idle_time(kcs, i); iowait += get_iowait_time(kcs, i); irq += kcs->cpustat[CPUTIME_IRQ]; @@ -162,7 +162,7 @@ static int show_stat(struct seq_file *p, void *v) /* Copy values here to work around gcc-2.95.3, gcc-2.96 */ user = kcs->cpustat[CPUTIME_USER]; nice = kcs->cpustat[CPUTIME_NICE]; - system = kcs->cpustat[CPUTIME_SYSTEM]; + system = kcpustat_field(kcs, CPUTIME_SYSTEM, i); idle = get_idle_time(kcs, i); iowait = get_iowait_time(kcs, i); irq = kcs->cpustat[CPUTIME_IRQ]; -- 2.23.0