netdev - Re: [RFC] tcp: use order-3 pages in tcp

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Date:	Mon, 17 Sep 2012 12:12:43 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	netdev@...r.kernel.org
Subject: Re: [RFC] tcp: use order-3 pages in tcp_sendmsg()

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Mon, 17 Sep 2012 09:49:04 +0200

> 2) Use order-3 pages (or order-0 pages if page size is >= 32768)

We could do with an audit to make sure drivers (and the stack in
general) can handle SKB frags of length > PAGE_SIZE.

I have no idea whether such problems might actually exist, but
I can say it's a case that gets not so much testing.
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