From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net-next-2.6] net: fix a lockdep rcu warning in __sk_dst_set() Date: Tue, 27 Apr 2010 12:42:11 -0700 (PDT) Message-ID: <20100427.124211.214227480.davem@davemloft.net> References: <1272350443.4861.9.camel@edumazet-laptop> <20100427161716.GB2424@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: eric.dumazet@gmail.com, netdev@vger.kernel.org To: paulmck@linux.vnet.ibm.com Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:56367 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754900Ab0D0TmG (ORCPT ); Tue, 27 Apr 2010 15:42:06 -0400 In-Reply-To: <20100427161716.GB2424@linux.vnet.ibm.com> Sender: netdev-owner@vger.kernel.org List-ID: From: "Paul E. McKenney" Date: Tue, 27 Apr 2010 09:17:16 -0700 > On Tue, Apr 27, 2010 at 08:40:43AM +0200, Eric Dumazet wrote: >> __sk_dst_set() might be called while no state can be integrated in a >> rcu_dereference_check() condition. >> >> So use rcu_dereference_raw() to shutup lockdep warnings (if >> CONFIG_PROVE_RCU is set) > > Acked-by: Paul E. McKenney > >> Signed-off-by: Eric Dumazet I've applied this to net-next-2.6, thanks!