Date: Thu, 08 Apr 2004 18:16:10 +0900
From: IWAMOTO Toshihiro <iwamoto@valinux.co.jp>
To: "Martin J. Bligh" <mbligh@aracnet.com>
Cc: IWAMOTO Toshihiro <iwamoto@valinux.co.jp>, linux-kernel@vger.kernel.org,
       lhms-devel@lists.sourceforge.net
Subject: Re: [patch 0/3] memory hotplug prototype
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References: <20040406105353.9BDE8705DE@sv1.valinux.co.jp>
	<29700000.1081361575@flay>
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At Wed, 07 Apr 2004 11:12:55 -0700,
Martin J. Bligh <mbligh@aracnet.com> wrote:
> 
> > This is an updated version of memory hotplug prototype patch, which I
> > have posted here several times.
> 
> I really, really suggest you take a look at Dave McCracken's work, which
> he posted as "Basic nonlinear for x86" recently. It's going to be much
> much easier to use this abstraction than creating 1000s of zones ...

Well, I think his patch is orthogonal to mine.  My ultimate target
is IA64 and it will only support node-sized memory hotplugging.

If you need fine-grained memory resizing, that shouldn't be hard to
do.  As others have pointed out, per section hotremovable is not as
easy as per zone one, but we've done a similar thing for hugetlbfs
support.  Look for PG_again in Takahashi's patch.

--
IWAMOTO Toshihiro
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