linux-kernel - Re: [PATCH 04/10] mm: slub: add knowledge of reserve pages

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Message-ID: <Pine.LNX.4.64.0708201211240.20591@sbz-30.cs.Helsinki.FI>
Date:	Mon, 20 Aug 2007 12:12:30 +0300 (EEST)
From:	Pekka J Enberg <penberg@...helsinki.fi>
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>,
	Christoph Lameter <clameter@....com>,
	Matt Mackall <mpm@...enic.com>,
	Lee Schermerhorn <Lee.Schermerhorn@...com>,
	Steve Dickson <SteveD@...hat.com>
Subject: Re: [PATCH 04/10] mm: slub: add knowledge of reserve pages

Hi Peter,

On Mon, 20 Aug 2007, Peter Zijlstra wrote:
> -static struct page *new_slab(struct kmem_cache *s, gfp_t flags, int node)
> +static struct page *new_slab(struct kmem_cache *s, gfp_t flags, int node, int *reserve)
>  {

[snip]

> +	*reserve = page->reserve;

Any reason why the callers that are actually interested in this don't do 
page->reserve on their own?
-
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