From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH 03/12] IPv6: addrconf notify when address is unavailable Date: Thu, 04 Mar 2010 00:40:06 -0800 (PST) Message-ID: <20100304.004006.75773924.davem@davemloft.net> References: <20100302233243.259794027@vyatta.com> <20100302234003.046022988@vyatta.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: yoshfuji@linux-ipv6.org, netdev@vger.kernel.org To: shemminger@vyatta.com Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:36147 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754338Ab0CDIjr (ORCPT ); Thu, 4 Mar 2010 03:39:47 -0500 In-Reply-To: <20100302234003.046022988@vyatta.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Stephen Hemminger Date: Tue, 02 Mar 2010 15:32:46 -0800 > My recent change in net-next to retain permanent addresses caused regression. > Device refcount would not go to zero when device was unregistered because > left over anycast reference would hold ipv6 dev reference which would hold > device references... > > The correct procedure is to call notify chain when address is no longer > available for use. When interface comes back DAD timer will notify > back that address is available. > > > Also, link local addresses should be purged when interface is brought > down. The address might be changed. > > Signed-off-by: Stephen Hemminger Applied.