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Date: Wed, 21 Mar 2007 17:47:13 +0200
From: "Pekka Enberg" <penberg@cs.helsinki.fi>
To: "Eric Dumazet" <dada1@cosmosbay.com>
Subject: Re: [RFC, PATCH] SLAB : [NUMA] keep nodeid in struct page instead of struct slab
Cc: "Christoph Lameter" <christoph@lameter.com>,
       "Andi Kleen" <andi@firstfloor.org>,
       "Andrew Morton" <akpm@linux-foundation.org>,
       "linux kernel" <linux-kernel@vger.kernel.org>
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On 3/21/07, Eric Dumazet <dada1@cosmosbay.com> wrote:
> Last time I checked 'struct page', they was no nodeid in it.

Hmm, page_to_nid() in include/linx/mm.h doesn't agree with you:

#ifdef NODE_NOT_IN_PAGE_FLAGS
extern int page_to_nid(struct page *page);
#else
static inline int page_to_nid(struct page *page)
{
        return (page->flags >> NODES_PGSHIFT) & NODES_MASK;
}
#endif