From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: [RFC PATCH 1/9] ipvs network name space aware Date: Thu, 21 Oct 2010 17:24:56 +0200 Message-ID: <1287674696.6871.109.camel@edumazet-laptop> References: <201010081316.46690.hans.schillstrom@ericsson.com> <201010181523.49568.hans.schillstrom@ericsson.com> <20101019184436.GG2362@linux.vnet.ibm.com> <201010201025.20950.hans.schillstrom@ericsson.com> <20101020160205.GB2386@linux.vnet.ibm.com> <1287651504.6871.44.camel@edumazet-laptop> <20101021151613.GB2363@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Hans Schillstrom , Daniel Lezcano , "lvs-devel@vger.kernel.org" , "netdev@vger.kernel.org" , "netfilter-devel@vger.kernel.org" , "horms@verge.net.au" , "ja@ssi.bg" , "wensong@linux-vs.org" To: paulmck@linux.vnet.ibm.com Return-path: Received: from mail-ww0-f44.google.com ([74.125.82.44]:64394 "EHLO mail-ww0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752868Ab0JUPZL (ORCPT ); Thu, 21 Oct 2010 11:25:11 -0400 In-Reply-To: <20101021151613.GB2363@linux.vnet.ibm.com> Sender: netdev-owner@vger.kernel.org List-ID: Le jeudi 21 octobre 2010 =C3=A0 08:16 -0700, Paul E. McKenney a =C3=A9c= rit : > Here is what it looks like in my -rcu tree: >=20 > void __rcu_read_lock(void) > { > current->rcu_read_lock_nesting++; > barrier(); /* needed if we ever invoke rcu_read_lock in rcutree.c *= / > } >=20 > So yes, I finally did convince myself that the ACCESS_ONCE was not > needed. ;-) >=20 > This is not yet in mainline, but Ingo sent the series containing this > commit (80dcf60e) to Linus earlier today, so there is hope! >=20 Excellent, thanks for taking time to clarify this Paul.