From: Christoph Lameter <cl@linux.com>
Date: Wed, 9 May 2012 15:09:56 +0000 (-0500)
Subject: slub: Get rid of the node field
X-Git-Tag: v3.6-rc1~50^2~23^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ec3ab083a7a004282ee374bdaeb0aa603521b8eb;p=pandora-kernel.git

slub: Get rid of the node field

The node field is always page_to_nid(c->page). So its rather easy to
replace. Note that there maybe slightly more overhead in various hot paths
due to the need to shift the bits from page->flags. However, that is mostly
compensated for by a smaller footprint of the kmem_cache_cpu structure (this
patch reduces that to 3 words per cache) which allows better caching.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
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