netdev - Re: [PATCH net-next-2.6] net: pskb_expand

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Message-Id: <20100911.203002.193707453.davem@davemloft.net>
Date:	Sat, 11 Sep 2010 20:30:02 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	jarkao2@...il.com
Cc:	eric.dumazet@...il.com, netdev@...r.kernel.org
Subject: Re: [PATCH net-next-2.6] net: pskb_expand_head() optimization

From: Jarek Poplawski <jarkao2@...il.com>
Date: Sat, 11 Sep 2010 14:31:40 +0200

> Otherwise seems OK, but I still would like to know the scenario
> demanding this change.

I want to make sk_buff use list_head, including all uses such as
frag_list et al.

If the frag_list chain can be shared, a doubly linked list cannot be
used.

This is someting I've been gradually working on now for more than 2
years :)
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