From mboxrd@z Thu Jan  1 00:00:00 1970
From: "David S. Miller" <davem@redhat.com>
Subject: Re: 2.6.7-rc3: unregister_netdevice: waiting for tun0 to become
 free. Usage count = 1
Date: Wed, 16 Jun 2004 13:47:11 -0700
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To: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
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On Thu, 17 Jun 2004 00:37:48 +0400
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> wrote:

> Sort of. I think it should happen after killing reference to dst->dev:
 ...
> but before dropping reference to dev:
 ...
> So, I think it should look like:
> 
> 		dst->dev = &loopback_dev;
> 		dev_hold(&loopback_dev);
> +		synchronize_kernel();
> 		dev_put(dev);

Perfect, that's what I put into my tree then, plus some comment.