[PATCH v3 REPOST] xen-netfront: delay gARP until backend switches to Connected

2011-12-09 Thread Laszlo Ersek
After a guest is live migrated, the xen-netfront driver emits a gratuitous ARP message, so that networking hardware on the target host's subnet can take notice, and public routing to the guest is re-established. However, if the packet appears on the backend interface before the backend is added to

Re: [PATCH v3 REPOST] xen-netfront: delay gARP until backend switches to Connected

2011-12-09 Thread David Miller
From: Laszlo Ersek ler...@redhat.com Date: Fri, 9 Dec 2011 12:38:58 +0100 These two together provide complete ordering. Sub-condition (1) is satisfied by pvops commit 43223efd9bfd. I don't see this commit in Linus's tree, so I doubt it's valid for me to apply this as a bug fix to my 'net'

Re: [PATCH v3 REPOST] xen-netfront: delay gARP until backend switches to Connected

2011-12-09 Thread Ian Campbell
On Fri, 2011-12-09 at 18:45 +, David Miller wrote: From: Laszlo Ersek ler...@redhat.com Date: Fri, 9 Dec 2011 12:38:58 +0100 These two together provide complete ordering. Sub-condition (1) is satisfied by pvops commit 43223efd9bfd. I don't see this commit in Linus's tree, The

Re: [PATCH v3 REPOST] xen-netfront: delay gARP until backend switches to Connected

2011-12-09 Thread David Miller
From: Ian Campbell ian.campb...@citrix.com Date: Fri, 9 Dec 2011 21:23:00 + On Fri, 2011-12-09 at 18:45 +, David Miller wrote: From: Laszlo Ersek ler...@redhat.com Date: Fri, 9 Dec 2011 12:38:58 +0100 These two together provide complete ordering. Sub-condition (1) is satisfied