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 C2BC9C5DF63 for ; Wed, 6 Nov 2019 03:09:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 84CB9222C2 for ; Wed, 6 Nov 2019 03:09:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573009766; bh=OPg+OWIL7YrZ7aK6JFMMVO6jtqfg0GHKfu/eH8lWhWk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=wsipFmyhl3otNzwgAsLcP2fwHN5Cd06Ev32E7sG9K0icOQkmGxDQs9NnvxKDpFUvo o5+mulhRQ8zKNqWyCJ4tTuIsKQs0b+SzBUwOkty3HHKh3A6ZCWHi0uFLk9JLJINyIY QdRUER3B6Z/041dlkZS3PVkUmIeD7Q9cfyn/lSgo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730892AbfKFDIs (ORCPT ); Tue, 5 Nov 2019 22:08:48 -0500 Received: from mail.kernel.org ([198.145.29.99]:44786 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388416AbfKFDIn (ORCPT ); Tue, 5 Nov 2019 22:08:43 -0500 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 3CD70222CF; Wed, 6 Nov 2019 03:08:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573009722; bh=OPg+OWIL7YrZ7aK6JFMMVO6jtqfg0GHKfu/eH8lWhWk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aMfJtGT8V8z21MpDp9xUOzCmgkfYeGVIjiUTJ3Vi4PseRdYXYtxLusq5GbWZADTxT 8eSr3teH94mynrjUcIJBNdn3uuQRvSprOXkj6OF6pmntK30DqZSY0i2KFexiKRpn+p M6gEXR3rTxvu4YgkvfkezeO5wrGmEiQNAPreDIAA= From: Frederic Weisbecker To: Peter Zijlstra , Ingo Molnar Cc: LKML , Frederic Weisbecker , Jacek Anaszewski , Wanpeng Li , Pavel Machek , Benjamin Herrenschmidt , Thomas Gleixner , Yauheni Kaliuta , "Rafael J . Wysocki" , Viresh Kumar , Rik van Riel Subject: [PATCH 9/9] rackmeter: Use vtime aware kcpustat accessor Date: Wed, 6 Nov 2019 04:08:07 +0100 Message-Id: <20191106030807.31091-10-frederic@kernel.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191106030807.31091-1-frederic@kernel.org> References: <20191106030807.31091-1-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, use it to fetch CPUTIME_NICE and fix frozen kcpustat values on nohz_full CPUs. Reported-by: Yauheni Kaliuta Signed-off-by: Frederic Weisbecker Cc: Benjamin Herrenschmidt Cc: Yauheni Kaliuta Cc: Thomas Gleixner Cc: Rik van Riel Cc: Peter Zijlstra Cc: Wanpeng Li Cc: Ingo Molnar --- drivers/macintosh/rack-meter.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c index 4134e580f786..60311e8d6240 100644 --- a/drivers/macintosh/rack-meter.c +++ b/drivers/macintosh/rack-meter.c @@ -81,13 +81,14 @@ static int rackmeter_ignore_nice; */ static inline u64 get_cpu_idle_time(unsigned int cpu) { + struct kernel_cpustat *kcpustat = &kcpustat_cpu(cpu); u64 retval; - retval = kcpustat_cpu(cpu).cpustat[CPUTIME_IDLE] + - kcpustat_cpu(cpu).cpustat[CPUTIME_IOWAIT]; + retval = kcpustat->cpustat[CPUTIME_IDLE] + + kcpustat->cpustat[CPUTIME_IOWAIT]; if (rackmeter_ignore_nice) - retval += kcpustat_cpu(cpu).cpustat[CPUTIME_NICE]; + retval += kcpustat_field(kcpustat, CPUTIME_NICE, cpu); return retval; } -- 2.23.0