From patchwork Tue Nov 15 20:28:04 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: 5148 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 04C1523E0F for ; Tue, 15 Nov 2011 20:28:18 +0000 (UTC) Received: from mail-fx0-f52.google.com (mail-fx0-f52.google.com [209.85.161.52]) by fiordland.canonical.com (Postfix) with ESMTP id ECB0FA182C7 for ; Tue, 15 Nov 2011 20:28:17 +0000 (UTC) Received: by mail-fx0-f52.google.com with SMTP id a26so1226734faa.11 for ; Tue, 15 Nov 2011 12:28:17 -0800 (PST) Received: by 10.152.162.10 with SMTP id xw10mr18093282lab.12.1321388897784; Tue, 15 Nov 2011 12:28:17 -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 h6cs55682lal; Tue, 15 Nov 2011 12:28:17 -0800 (PST) Received: by 10.220.117.71 with SMTP id p7mr3293190vcq.127.1321388895641; Tue, 15 Nov 2011 12:28:15 -0800 (PST) Received: from e9.ny.us.ibm.com (e9.ny.us.ibm.com. [32.97.182.139]) by mx.google.com with ESMTPS id o9si10926205anm.122.2011.11.15.12.28.15 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 15 Nov 2011 12:28:15 -0800 (PST) Received-SPF: pass (google.com: domain of paulmck@linux.vnet.ibm.com designates 32.97.182.139 as permitted sender) client-ip=32.97.182.139; Authentication-Results: mx.google.com; spf=pass (google.com: domain of paulmck@linux.vnet.ibm.com designates 32.97.182.139 as permitted sender) smtp.mail=paulmck@linux.vnet.ibm.com Received: from /spool/local by e9.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 15 Nov 2011 15:28:14 -0500 Received: from d01relay03.pok.ibm.com ([9.56.227.235]) by e9.ny.us.ibm.com ([192.168.1.109]) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Tue, 15 Nov 2011 15:28:12 -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 pAFKSAvH238208; Tue, 15 Nov 2011 15:28:10 -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 pAFKS8hu008183; Tue, 15 Nov 2011 15:28:09 -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 pAFKS7ne008100; Tue, 15 Nov 2011 15:28:08 -0500 Received: by paulmck-ThinkPad-W500 (Postfix, from userid 1000) id EA19FEAA13; Tue, 15 Nov 2011 12:28:06 -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" , Peter Zijlstra , Paul Mackerras , Arnaldo Carvalho de Melo Subject: [PATCH tip/core/rcu 8/9] events: Make events use the new is_idle_task() API Date: Tue, 15 Nov 2011 12:28:04 -0800 Message-Id: <1321388885-11211-8-git-send-email-paulmck@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.3.2 In-Reply-To: <20111115202736.GA11030@linux.vnet.ibm.com> References: <20111115202736.GA11030@linux.vnet.ibm.com> x-cbid: 11111520-7182-0000-0000-000000321DCB From: Paul E. McKenney Change from direct comparison of ->pid with zero to is_idle_task(). Signed-off-by: Paul E. McKenney Signed-off-by: Paul E. McKenney Cc: Peter Zijlstra Cc: Paul Mackerras Cc: Ingo Molnar Cc: Arnaldo Carvalho de Melo --- kernel/events/core.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index 0e8457d..cd3aa34 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -5283,7 +5283,7 @@ static enum hrtimer_restart perf_swevent_hrtimer(struct hrtimer *hrtimer) regs = get_irq_regs(); if (regs && !perf_exclude_event(event, regs)) { - if (!(event->attr.exclude_idle && current->pid == 0)) + if (!(event->attr.exclude_idle && is_idle_task(current))) if (perf_event_overflow(event, &data, regs)) ret = HRTIMER_NORESTART; }