[RFC] Page flags: Saving some, making handling easier etc. [LWN.net]

From:		Christoph Lameter <clameter@sgi.com>
To:		linux-kernel@vger.kernel.org
Subject:		[rfc 00/10] [RFC] Page flags: Saving some, making handling easier etc.
Date:		Fri, 29 Feb 2008 20:05:34 -0800
Message-ID:		<20080301040534.797979115@sgi.com>
Cc:		Mel Gorman <mel@csn.ul.ie>
Archive-link:		Article, Thread

A set of patches that attempts to improve page flag handling. First of all a
method is introduces to generate the page flag functions using macros. Then
the number of page flags used by sparsemem is reduced.

Then we add a way to export enum constant to the preprocessor which allows
us to get rid of __ZONE_COUNT and use the NR_PAGEFLAGS for the calculation
of actually available page flags for fields.

Lastly there is a land grab of page flags for various ongoing VM projects.

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