netdev - Re: [PATCH 6/6] C/R: Add checkpoint support to macvlan driver

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Message-Id: <20100226.040952.67809551.davem@davemloft.net>
Date:	Fri, 26 Feb 2010 04:09:52 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	danms@...ibm.com
Cc:	containers@...ts.osdl.org, benjamin.thery@...l.net, den@...nvz.org,
	ebiederm@...ssion.com, netdev@...r.kernel.org
Subject: Re: [PATCH 6/6] C/R: Add checkpoint support to macvlan driver

From: Dan Smith <danms@...ibm.com>
Date: Thu, 25 Feb 2010 12:43:15 -0800

> This has an small hidden gotcha.  Since the macvlan device is moved
> completely into a container's network namespace, the init netns cannot
> freeze traffic to and from it in order to migrate live network connections
> by simply utilizing its netfilter tables.  A helper process in the container
> or something like what was recently discussed on the containers list[1]
> would provide a way to do this.
> 
> [1]: https://lists.linux-foundation.org/pipermail/containers/2010-February/023001.html
> 
> Signed-off-by: Dan Smith <danms@...ibm.com>

Acked-by: David S. Miller <davem@...emloft.net>
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