From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rongqing Li Subject: Re: [PATCH] Ipv6: Delete rcu_read_lock Date: Thu, 29 Sep 2011 16:25:55 +0800 Message-ID: <4E842B93.3010203@windriver.com> References: <1317282414-13368-1-git-send-email-rongqing.li@windriver.com> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit Cc: To: "Yan, Zheng " Return-path: Received: from mail.windriver.com ([147.11.1.11]:57919 "EHLO mail.windriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754714Ab1I2IZx (ORCPT ); Thu, 29 Sep 2011 04:25:53 -0400 Received: from ALA-HCA.corp.ad.wrs.com (ala-hca [147.11.189.40]) by mail.windriver.com (8.14.3/8.14.3) with ESMTP id p8T8PrCW028627 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL) for ; Thu, 29 Sep 2011 01:25:53 -0700 (PDT) In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On 09/29/2011 04:16 PM, Yan, Zheng wrote: > I think the rcu_read_lock protects in6_dev->nd_parms. > It can not protect in6_dev->nd_parms. rcu_read_lock protects the data which is accessed by rcu_XXX, -Roy > Yan, Zheng -- Best Reagrds, Roy | RongQing Li