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Date: Tue, 17 Oct 2006 17:10:21 -0700
From: Andrew Morton <akpm@osdl.org>
To: "Mike Miller (OS Dev)" <mikem@beardog.cca.cpqcorp.net>
Cc: jens.axboe@suse.de, linux-kernel@vger.kernel.org,
       linux-scsi@vger.kernel.org
Subject: Re: [PATCH 2/2] cciss: disable dma prefetch for P600
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On Tue, 17 Oct 2006 16:13:03 -0500
"Mike Miller (OS Dev)" <mikem@beardog.cca.cpqcorp.net> wrote:

> PATCH 2/2
> Turned off DMA prefetch for the P600 on systems which may present
> discontiguous memory.
> 

What do you mean by "discontiguous memory"?  CONFIG_DISCONTIGMEM?

What is the actual problem which is being fixed here?

> +#if defined CONFIG_IA64 || if defined CONFIG_X86_64

hm, does that work?

I'll change it to

#if defined(CONFIG_IA64) || defined(CONFIG_X86_64)