netdev - Re: [PATCH 5/5 net-next] net: makes skb_splice_bits() aware of skb->head

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Message-Id: <20120430.214855.1985836626684393490.davem@davemloft.net>
Date:	Mon, 30 Apr 2012 21:48:55 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	netdev@...r.kernel.org, ncardwell@...gle.com,
	jeffrey.t.kirsher@...el.com, therbert@...gle.com,
	herbert@...dor.hengli.com.au, bhutchings@...arflare.com,
	mcarlson@...adcom.com, mchan@...adcom.com, maze@...gle.com,
	ilpo.jarvinen@...sinki.fi
Subject: Re: [PATCH 5/5 net-next] net: makes skb_splice_bits() aware of
 skb->head_frag

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Fri, 27 Apr 2012 14:10:03 +0200

> From: Eric Dumazet <edumazet@...gle.com>
> 
> __skb_splice_bits() can check if skb to be spliced has its skb->head
> mapped to a page fragment, instead of a kmalloc() area.
> 
> If so we can avoid a copy of the skb head and get a reference on
> underlying page.
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied.
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