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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=unavailable 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 7D37BC10F14 for ; Tue, 15 Oct 2019 10:28:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5B1E320854 for ; Tue, 15 Oct 2019 10:28:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729173AbfJOK25 (ORCPT ); Tue, 15 Oct 2019 06:28:57 -0400 Received: from out30-131.freemail.mail.aliyun.com ([115.124.30.131]:56461 "EHLO out30-131.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726508AbfJOK2z (ORCPT ); Tue, 15 Oct 2019 06:28:55 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R201e4;CH=green;DM=||false|;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04423;MF=laijs@linux.alibaba.com;NM=1;PH=DS;RN=9;SR=0;TI=SMTPD_---0Tf7PwEz_1571135331; Received: from localhost(mailfrom:laijs@linux.alibaba.com fp:SMTPD_---0Tf7PwEz_1571135331) by smtp.aliyun-inc.com(127.0.0.1); Tue, 15 Oct 2019 18:28:52 +0800 From: Lai Jiangshan To: linux-kernel@vger.kernel.org Cc: Lai Jiangshan , Lai Jiangshan , "Paul E. McKenney" , Josh Triplett , Steven Rostedt , Mathieu Desnoyers , Joel Fernandes , rcu@vger.kernel.org Subject: [PATCH 3/7] rcu: trace_rcu_utilization() paired Date: Tue, 15 Oct 2019 10:28:45 +0000 Message-Id: <20191015102850.2079-1-laijs@linux.alibaba.com> X-Mailer: git-send-email 2.20.1 Reply-To: <20191015102402.1978-1-laijs@linux.alibaba.com> 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 The notations include "Start" and "End", it is better when there are paired. Signed-off-by: Lai Jiangshan Signed-off-by: Lai Jiangshan --- kernel/rcu/tree.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index c351fc280945..7830d5a06e69 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -2484,8 +2484,8 @@ static void rcu_cpu_kthread(unsigned int cpu) char work, *workp = this_cpu_ptr(&rcu_data.rcu_cpu_has_work); int spincnt; + trace_rcu_utilization(TPS("Start CPU kthread@rcu_run")); for (spincnt = 0; spincnt < 10; spincnt++) { - trace_rcu_utilization(TPS("Start CPU kthread@rcu_run")); local_bh_disable(); *statusp = RCU_KTHREAD_RUNNING; local_irq_disable(); @@ -2501,6 +2501,7 @@ static void rcu_cpu_kthread(unsigned int cpu) return; } } + trace_rcu_utilization(TPS("End CPU kthread@rcu_run")); *statusp = RCU_KTHREAD_YIELDING; trace_rcu_utilization(TPS("Start CPU kthread@rcu_yield")); schedule_timeout_interruptible(2); -- 2.20.1