Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752852Ab3JLRN4 (ORCPT ); Sat, 12 Oct 2013 13:13:56 -0400 Received: from e39.co.us.ibm.com ([32.97.110.160]:39271 "EHLO e39.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752358Ab3JLRNz (ORCPT ); Sat, 12 Oct 2013 13:13:55 -0400 Date: Sat, 12 Oct 2013 10:13:45 -0700 From: "Paul E. McKenney" To: Josh Triplett Cc: linux-kernel@vger.kernel.org, mingo@kernel.org, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, darren@dvhart.com, fweisbec@gmail.com, sbw@mit.edu, fengguang.wu@intel.com, stephen@networkplumber.org, davem@davemloft.net, bridge@lists.linux-foundation.org, netdev@vger.kernel.org, tgraf@suug.ch, gaofeng@cn.fujitsu.com, linux-decnet-user@lists.sourceforge.net, kuznet@ms2.inr.ac.ru, jmorris@namei.org, yoshfuji@linux-ipv6.org, kaber@trash.net, linville@tuxdriver.com, johannes@sipsolutions.net Subject: Re: [PATCH v3 tip/core/rcu 0/14] Sparse-related updates for 3.13 Message-ID: <20131012171345.GB5790@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <20131011231659.GA28062@linux.vnet.ibm.com> <20131012065326.GG15339@leaf> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20131012065326.GG15339@leaf> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13101217-9332-0000-0000-000001BE986B Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 873 Lines: 22 On Fri, Oct 11, 2013 at 11:53:27PM -0700, Josh Triplett wrote: > On Fri, Oct 11, 2013 at 04:16:59PM -0700, Paul E. McKenney wrote: > > Changes from v2: > > > > o Switch from rcu_assign_pointer() to ACCESS_ONCE() given that > > the pointers are all --rcu and already visible to readers, > > as suggested by Eric Dumazet and Josh Triplett. > > Hang on a moment. Do *none* of these cases need write memory barriers? Sigh. Some afternoons it doesn't pay to touch the keyboard. Thank you for catching this. I will fix, but at this point, I am thinking in terms of 3.14 rather than 3.13 for this series. Thanx, Paul -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/