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From: Dave Hansen <haveblue@us.ibm.com>
To: Ian Pratt <Ian.Pratt@cl.cam.ac.uk>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@osdl.org>,
	Keir.Fraser@cl.cam.ac.uk, Christian.Limpach@cl.cam.ac.uk
Subject: Re: [patch 4/4] Xen core patch : /dev/mem calls io_remap_page_range
Date: Wed, 17 Nov 2004 17:20:28 -0800	[thread overview]
Message-ID: <1100740828.12373.269.camel@localhost> (raw)
In-Reply-To: <E1CUajU-0005vu-00@mta1.cl.cam.ac.uk>

On Wed, 2004-11-17 at 17:05, Ian Pratt wrote:
> If there really are no uses, an alternative patch would be to
> introduce an ARCH_HAS_REMAP_PAGE_RANGE. Would this be preferable?

Well, first of all, remap_page_range() is now deprecated, so some of
this might not even be relevant.  :) 

My only worry is that you might want *all* calls to
remap_page/pfn_range() to be to io_remap_page/pfn_range() for your
arch.  If this isn't the case, then there really isn't an issue.  And,
yes, mem.c is a mess.

Thanks for the explanation.

-- Dave


  reply	other threads:[~2004-11-18  1:23 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-11-17 23:56 [patch 4/4] Xen core patch : /dev/mem calls io_remap_page_range Ian Pratt
2004-11-18  0:25 ` Dave Hansen
2004-11-18  1:05   ` Ian Pratt
2004-11-18  1:20     ` Dave Hansen [this message]
2004-11-18  3:01 ` Andrew Morton

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