linux-kernel - Re: [RFC, PATCH] SLAB : [NUMA] keep nodeid in struct page instead of struct slab

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Message-ID: <Pine.LNX.4.64.0703210742080.1573@graphe.net>
Date:	Wed, 21 Mar 2007 07:42:51 -0700 (PDT)
From:	Christoph Lameter <christoph@...eter.com>
To:	Pekka Enberg <penberg@...helsinki.fi>
cc:	Eric Dumazet <dada1@...mosbay.com>,
	Andi Kleen <andi@...stfloor.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux kernel <linux-kernel@...r.kernel.org>
Subject: Re: [RFC, PATCH] SLAB : [NUMA] keep nodeid in struct page instead
 of struct slab


On Wed, 21 Mar 2007, Pekka Enberg wrote:

> Can we please have a slab_get_nid() and slab_set_nid() instead which
> reduces the need for #ifdefs?

None of that please. The page flags already contain a node number that is 
accessible via page_to_nid(). Just make sure that we never put a slab onto 
the wrong node.

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