From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750854Ab0CAIeP (ORCPT ); Mon, 1 Mar 2010 03:34:15 -0500 Received: from hera.kernel.org ([140.211.167.34]:59400 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750747Ab0CAIeN (ORCPT ); Mon, 1 Mar 2010 03:34:13 -0500 Date: Mon, 1 Mar 2010 08:33:39 GMT From: "tip-bot for Paul E. McKenney" Cc: linux-kernel@vger.kernel.org, paulmck@linux.vnet.ibm.com, hpa@zytor.com, mingo@redhat.com, tglx@linutronix.de, mingo@elte.hu Reply-To: mingo@redhat.com, hpa@zytor.com, paulmck@linux.vnet.ibm.com, linux-kernel@vger.kernel.org, tglx@linutronix.de, mingo@elte.hu In-Reply-To: <20100228163218.GD6846@linux.vnet.ibm.com> References: <20100228163218.GD6846@linux.vnet.ibm.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:core/rcu] sched, rcu: Fix rcu_dereference() for RCU-lockdep Message-ID: Git-Commit-ID: 90a6501f94aedd7fb40f5556334843194fb598be X-Mailer: tip-git-log-daemon MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Mon, 01 Mar 2010 08:33:41 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 90a6501f94aedd7fb40f5556334843194fb598be Gitweb: http://git.kernel.org/tip/90a6501f94aedd7fb40f5556334843194fb598be Author: Paul E. McKenney AuthorDate: Sun, 28 Feb 2010 08:32:18 -0800 Committer: Ingo Molnar CommitDate: Mon, 1 Mar 2010 09:29:58 +0100 sched, rcu: Fix rcu_dereference() for RCU-lockdep Make rcu_dereference() of runqueue data structures be rcu_dereference_sched(). Located-by: Ingo Molnar Signed-off-by: Paul E. McKenney Cc: laijs@cn.fujitsu.com Cc: dipankar@in.ibm.com Cc: mathieu.desnoyers@polymtl.ca Cc: josh@joshtriplett.org Cc: dvhltc@us.ibm.com Cc: niv@us.ibm.com Cc: peterz@infradead.org Cc: rostedt@goodmis.org Cc: Valdis.Kletnieks@vt.edu Cc: dhowells@redhat.com LKML-Reference: <20100228163218.GD6846@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar --- kernel/sched_fair.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 3e1fd96..5a5ea2c 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -3476,7 +3476,7 @@ static void run_rebalance_domains(struct softirq_action *h) static inline int on_null_domain(int cpu) { - return !rcu_dereference(cpu_rq(cpu)->sd); + return !rcu_dereference_sched(cpu_rq(cpu)->sd); } /*