From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH v3] net: don't reallocate skb->head unless the current
 one hasn't the needed extra size or is shared
Date: Fri, 03 Dec 2010 09:47:39 -0800 (PST)
Message-ID: <20101203.094739.35049271.davem@davemloft.net>
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From: Changli Gao <xiaosuo@gmail.com>
Date: Tue, 30 Nov 2010 16:48:46 +0800

> skb head being allocated by kmalloc(), it might be larger than what
> actually requested because of discrete kmem caches sizes. Before
> reallocating a new skb head, check if the current one has the needed
> extra size.
> 
> Do this check only if skb head is not shared.
> 
> Signed-off-by: Changli Gao <xiaosuo@gmail.com>
> Cc: Eric Dumazet <eric.dumazet@gmail.com>

Eric, ACK?