linux-kernel - Re: [PATCH 1/11] Add __GFP_MOVABLE flag and update callers

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Message-ID: <Pine.LNX.4.64.0611212340480.11982@skynet.skynet.ie>
Date:	Tue, 21 Nov 2006 23:43:51 +0000 (GMT)
From:	Mel Gorman <mel@....ul.ie>
To:	Christoph Lameter <clameter@....com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/11] Add __GFP_MOVABLE flag and update callers

On Tue, 21 Nov 2006, Christoph Lameter wrote:

> Are GFP_HIGHUSER allocations always movable? It would reduce the size of
> the patch if this would be added to GFP_HIGHUSER.
>

No, they aren't. Page tables allocated with HIGHPTE are currently not 
movable for example. A number of drivers (infiniband for example) also use 
__GFP_HIGHMEM that are not movable.

-- 
Mel Gorman
Part-time Phd Student                          Linux Technology Center
University of Limerick                         IBM Dublin Software Lab
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