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To: Greg KH <gregkh@suse.de>
Cc: "Michael S. Tsirkin" <mst@mellanox.co.il>,
       linux-pci@atrey.karlin.mff.cuni.cz, openib-general@openib.org,
       linux-kernel@vger.kernel.org, mj@ucw.cz
Subject: Re: [openib-general] Re: [PATCH] arch/xx/pci: remap_pfn_range ->
 io_remap_pfn_range
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	<20050728042607.GA12799@suse.de>
From: Roland Dreier <rolandd@cisco.com>
Date: Wed, 27 Jul 2005 21:30:17 -0700
In-Reply-To: <20050728042607.GA12799@suse.de> (Greg KH's message of "Wed, 27
 Jul 2005 21:26:07 -0700")
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    Greg> Hm, you do realize that io_remap_pfn_range() is the same
    Greg> thing as remap_pfn_range() on i386, right?

    Greg> So, why would this patch change anything?

It's not the same thing under Xen.  I think this patch fixes userspace
access to PCI memory for XenLinux.

 - R.