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From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net-next-2.6] vlan: remove one synchronize_net() call
Date: Mon, 09 May 2011 11:42:14 -0700 (PDT)
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From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Mon, 09 May 2011 16:40:44 +0200

> At VLAN dismantle phase, unregister_vlan_dev() makes one
> synchronize_net() call after vlan_group_set_device(grp, vlan_id, NULL).
> 
> This call can be safely removed because we are calling
> unregister_netdevice_queue() to queue device for deletion, and this
> process needs at least one rcu grace period to complete.
> 
> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>

Applied.