From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754882Ab0CDDzp (ORCPT ); Wed, 3 Mar 2010 22:55:45 -0500 Received: from mail-fx0-f219.google.com ([209.85.220.219]:60783 "EHLO mail-fx0-f219.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754793Ab0CDDzj (ORCPT ); Wed, 3 Mar 2010 22:55:39 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=NUpk1s7027cPRGnpBvXivvaX/g7BCsWE0IYdLwaDd+1+qK9CdcaNm6MWGXHKgrxkkb wuPsm9xYh65VfRlaYrGtweOvzvn/Sc9yd3zZw61NRXu16dY7cEtTtkdEY0lVkuou/hpq j/pmQlOonHIk0BXe5tl4TgLwEJzFT1q74YYxg= Date: Thu, 4 Mar 2010 04:55:36 +0100 From: Frederic Weisbecker To: "Paul E. McKenney" Cc: linux-kernel@vger.kernel.org, mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca, josh@joshtriplett.org, dvhltc@us.ibm.com, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu, dhowells@redhat.com, Ingo Molnar Subject: Re: [PATCH tip/core/rcu 3/3] rcu, ftrace: fix RCU lockdep splat in ftrace_perf_buf_prepare() Message-ID: <20100304035534.GA14460@nowhere> References: <20100304015001.GA32190@linux.vnet.ibm.com> <1267667418-32233-3-git-send-email-paulmck@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1267667418-32233-3-git-send-email-paulmck@linux.vnet.ibm.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Mar 03, 2010 at 05:50:18PM -0800, Paul E. McKenney wrote: > Change the pair of rcu_dereference() calls in ftrace_perf_buf_prepare() > to rcu_dereference_sched(). > > Cc: Steven Rostedt Acked-by: Frederic Weisbecker