From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH 1/4 net-next] net: allow skb->head to be a page fragment
Date: Mon, 30 Apr 2012 21:48:07 -0400 (EDT)
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From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Fri, 27 Apr 2012 12:33:38 +0200

> From: Eric Dumazet <edumazet@google.com>
> 
> skb->head is currently allocated from kmalloc(). This is convenient but
> has the drawback the data cannot be converted to a page fragment if
> needed.
 ...
> Given all these issues, the following patch introduces the possibility
> of having skb->head be a fragment in itself. We use a new skb flag,
> skb->head_frag to carry this information.
 ...
> Signed-off-by: Eric Dumazet <edumazet@google.com>

Applied.