netdev - Re: [PATCH net-next] be2net: dont pull too much data in skb linear part

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Message-Id: <20120716.230300.2238417953321284205.davem@davemloft.net>
Date:	Mon, 16 Jul 2012 23:03:00 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	padmanabh.ratnakar@...lex.com, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] be2net: dont pull too much data in skb linear
 part

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Fri, 13 Jul 2012 15:19:41 +0200

> From: Eric Dumazet <edumazet@...gle.com>
> 
> skb_fill_rx_data() pulls 64 byte of data in skb->data
> 
> Its too much for TCP (with no options) on IPv4, as total size of headers
> is 14 + 40 = 54
> 
> This means tcp stack and splice() are suboptimal, since tcp payload
> is in part in tcp->data, and in part in skb frag.
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied.
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