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Date: Thu, 3 Jul 2003 01:56:19 +0200
From: Andi Kleen <ak@suse.de>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Grant Grundler <grundler@parisc-linux.org>, Andi Kleen <ak@suse.de>,
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       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
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Subject: Re: [RFC] block layer support for DMA IOMMU bypass mode II
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> 1.	We allocate pages in reverse order so most merges cant occur

I added an printk and I get quite a lot of merges during bootup
with normal IDE.

(sometimes 12+ segments) 

-Andi