linux-kernel - Re: [PATCH 03/10] mm: tag reseve pages

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Message-ID: <Pine.LNX.4.64.0708061111390.25069@schroedinger.engr.sgi.com>
Date:	Mon, 6 Aug 2007 11:11:54 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	David Miller <davem@...emloft.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Daniel Phillips <phillips@...gle.com>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Matt Mackall <mpm@...enic.com>,
	Lee Schermerhorn <Lee.Schermerhorn@...com>,
	Steve Dickson <SteveD@...hat.com>
Subject: Re: [PATCH 03/10] mm: tag reseve pages

On Mon, 6 Aug 2007, Peter Zijlstra wrote:

> ===================================================================
> --- linux-2.6-2.orig/include/linux/mm_types.h
> +++ linux-2.6-2/include/linux/mm_types.h
> @@ -60,6 +60,7 @@ struct page {
>  	union {
>  		pgoff_t index;		/* Our offset within mapping. */
>  		void *freelist;		/* SLUB: freelist req. slab lock */
> +		int reserve;		/* page_alloc: page is a reserve page */

Extending page struct ???
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