[Devel] Re: [PATCH 3/3] netns: Remove net_alive

[David Miller]

From: ebiederm at xmission.com (Eric W. Biederman)
Date: Fri, 20 Feb 2009 08:02:57 -0800

> 
> It turns out that net_alive is unnecessary, and the original problem
> that led to it being added was simply that the icmp code thought
> it was a network device and wound up being unable to handle packets
> while there were still packets in the network namespace.
> 
> Now that icmp and tcp have been fixed to properly register themselves
> this problem is no longer present and we have a stronger guarantee
> that packets will not arrive in a network namespace then that provided
> by net_alive in netif_receive_skb.  So remove net_alive allowing
> packet reception run a little faster.
> 
> Additionally document the strong reason why network namespace cleanup
> is safe so that if something happens again someone else will have
> a chance of figuring it out.
> 
> Signed-off-by: Eric W. Biederman <ebiederm at aristanetworks.com>

Also applied, thanks Eric.
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