From patchwork Mon Nov 28 23:32:56 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Paul E. McKenney" X-Patchwork-Id: 5333 Return-Path: X-Original-To: patchwork@peony.canonical.com Delivered-To: patchwork@peony.canonical.com Received: from fiordland.canonical.com (fiordland.canonical.com [91.189.94.145]) by peony.canonical.com (Postfix) with ESMTP id B5B7E23E04 for ; Mon, 28 Nov 2011 23:34:02 +0000 (UTC) Received: from mail-lpp01m010-f52.google.com (mail-lpp01m010-f52.google.com [209.85.215.52]) by fiordland.canonical.com (Postfix) with ESMTP id 9AF33A18011 for ; Mon, 28 Nov 2011 23:34:02 +0000 (UTC) Received: by mail-lpp01m010-f52.google.com with SMTP id h2so1022790laa.11 for ; Mon, 28 Nov 2011 15:34:02 -0800 (PST) Received: by 10.152.135.225 with SMTP id pv1mr29622205lab.19.1322523242524; Mon, 28 Nov 2011 15:34:02 -0800 (PST) X-Forwarded-To: linaro-patchwork@canonical.com X-Forwarded-For: patch@linaro.org linaro-patchwork@canonical.com Delivered-To: patches@linaro.org Received: by 10.152.41.198 with SMTP id h6cs13077lal; Mon, 28 Nov 2011 15:34:02 -0800 (PST) Received: by 10.68.12.7 with SMTP id u7mr57414938pbb.77.1322523239770; Mon, 28 Nov 2011 15:33:59 -0800 (PST) Received: from e3.ny.us.ibm.com (e3.ny.us.ibm.com. [32.97.182.143]) by mx.google.com with ESMTPS id p1si26026453pbk.157.2011.11.28.15.33.58 (version=TLSv1/SSLv3 cipher=OTHER); Mon, 28 Nov 2011 15:33:59 -0800 (PST) Received-SPF: pass (google.com: domain of paulmck@linux.vnet.ibm.com designates 32.97.182.143 as permitted sender) client-ip=32.97.182.143; Authentication-Results: mx.google.com; spf=pass (google.com: domain of paulmck@linux.vnet.ibm.com designates 32.97.182.143 as permitted sender) smtp.mail=paulmck@linux.vnet.ibm.com Received: from /spool/local by e3.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 28 Nov 2011 18:33:55 -0500 Received: from d01relay03.pok.ibm.com ([9.56.227.235]) by e3.ny.us.ibm.com ([192.168.1.103]) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Mon, 28 Nov 2011 18:33:13 -0500 Received: from d01av04.pok.ibm.com (d01av04.pok.ibm.com [9.56.224.64]) by d01relay03.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id pASNXCen316170; Mon, 28 Nov 2011 18:33:12 -0500 Received: from d01av04.pok.ibm.com (loopback [127.0.0.1]) by d01av04.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id pASNX86s031437; Mon, 28 Nov 2011 18:33:12 -0500 Received: from paulmck-ThinkPad-W500 ([9.47.24.246]) by d01av04.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id pASNX8GP031383; Mon, 28 Nov 2011 18:33:08 -0500 Received: by paulmck-ThinkPad-W500 (Postfix, from userid 1000) id 8BB5AEAA08; Mon, 28 Nov 2011 15:33:07 -0800 (PST) From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca, josh@joshtriplett.org, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu, dhowells@redhat.com, eric.dumazet@gmail.com, darren@dvhart.com, patches@linaro.org, "Paul E. McKenney" , "Paul E. McKenney" Subject: [PATCH RFC tip/core/rcu 04/13] rcu: Update trace_rcu_dyntick() header comment Date: Mon, 28 Nov 2011 15:32:56 -0800 Message-Id: <1322523185-456-4-git-send-email-paulmck@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.3.2 In-Reply-To: <20111128233212.GA32279@linux.vnet.ibm.com> References: <20111128233212.GA32279@linux.vnet.ibm.com> x-cbid: 11112823-8974-0000-0000-00000380643E From: Paul E. McKenney This commit updates the trace_rcu_dyntick() header comment to reflect events added by commit 4b4f421. Signed-off-by: Paul E. McKenney Signed-off-by: Paul E. McKenney --- include/trace/events/rcu.h | 12 ++++++++++-- 1 files changed, 10 insertions(+), 2 deletions(-) diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h index c29fb2f..7f6877a 100644 --- a/include/trace/events/rcu.h +++ b/include/trace/events/rcu.h @@ -241,8 +241,16 @@ TRACE_EVENT(rcu_fqs, /* * Tracepoint for dyntick-idle entry/exit events. These take a string - * as argument: "Start" for entering dyntick-idle mode and "End" for - * leaving it. + * as argument: "Start" for entering dyntick-idle mode, "End" for + * leaving it, "--=" for events moving towards idle, and "++=" for events + * moving away from idle. "Error on entry: not idle task" and "Error on + * exit: not idle task" indicate that a non-idle task is erroneously + * toying with the idle loop. + * + * These events also take a pair of numbers, which indicate the nesting + * depth before and after the event of interest. Note that task-related + * events use the upper bits of each number, while interrupt-related + * events use the lower bits. */ TRACE_EVENT(rcu_dyntick,