From: Pavel Emelyanov <xemul@openvz.org>
Date: Fri, 12 Oct 2007 17:21:06 +0400

> To make in possible we need to know the exact frag queue
> size for inet_frags->mem management and two callbacks:
> 
>  * to destoy the skb (optional, used in conntracks only)
>  * to free the queue itself (mandatory, but later I plan to 
>    move the allocation and the destruction of frag_queues 
>    into the common place, so this callback will most likely
>    be optional too).
> 
> Signed-off-by: Pavel Emelyanov <xemul@openvz.org>

Applied.