netdev - Re: [PATCH 0/2] fixes to arp_notify for virtual machine migration use case

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Message-ID: <1274868492.24218.7350.camel@zakaz.uk.xensource.com>
Date:	Wed, 26 May 2010 11:08:12 +0100
From:	Ian Campbell <Ian.Campbell@...rix.com>
To:	David Miller <davem@...emloft.net>
CC:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"shemminger@...ux-foundation.org" <shemminger@...ux-foundation.org>,
	Jeremy Fitzhardinge <Jeremy.Fitzhardinge@...rix.com>,
	"stable@...nel.org" <stable@...nel.org>
Subject: Re: [PATCH 0/2] fixes to arp_notify for virtual machine migration
 use case

On Wed, 2010-05-26 at 07:08 +0100, David Miller wrote:
> From: Ian Campbell <Ian.Campbell@...rix.com>
> Date: Tue, 25 May 2010 10:20:01 +0100
> 
> > Anyway, assuming the fact that arp_notify is disabled by default hasn't
> > changed your mind, would adding NETDEV_NOTIFY_PEERS triggered by
> > netif_notify_peers() be appropriate or would it be preferable to simply
> > add netif_notify_peers() which generates the existing NETDEV_CHANGEADDR?
> 
> A seperate NETDEV_NOTIFY_PEERS seems the best idea to me.
> 
> > I don't think there's any need for a new sysctl so I'll gate the new
> > option on the existing arp_notify one.
> 
> Yep, sounds good.

The following changes since commit e40152ee1e1c7a63f4777791863215e3faa37a86:
  Linus Torvalds (1):
        Linus 2.6.34

are available in the git repository at:

  git://xenbits.xensource.com/people/ianc/linux-2.6.git for-netdev/fixes

Ian Campbell (3):
      arp_notify: document that a gratuitous ARP request is sent when this option is enabled
      arp_notify: allow drivers to explicitly request a notification event.
      xen: netfront: explicitly generate arp_notify event after migration.

 Documentation/networking/ip-sysctl.txt |    2 +-
 drivers/net/xen-netfront.c             |    1 +
 include/linux/netdevice.h              |    2 ++
 include/linux/notifier.h               |    1 +
 net/ipv4/devinet.c                     |    1 +
 net/sched/sch_generic.c                |   18 ++++++++++++++++++
 6 files changed, 24 insertions(+), 1 deletions(-)


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