From: Christoph Lameter <cl@linux.com>
Date: Fri, 20 Aug 2010 17:37:15 +0000 (-0500)
Subject: slub: Dynamically size kmalloc cache allocations
X-Git-Tag: v2.6.37-rc1~141^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=51df1142816e469173889fb6d6dc810be9b9e022;p=pandora-kernel.git

slub: Dynamically size kmalloc cache allocations

kmalloc caches are statically defined and may take up a lot of space just
because the sizes of the node array has to be dimensioned for the largest
node count supported.

This patch makes the size of the kmem_cache structure dynamic throughout by
creating a kmem_cache slab cache for the kmem_cache objects. The bootstrap
occurs by allocating the initial one or two kmem_cache objects from the
page allocator.

C2->C3
	- Fix various issues indicated by David
	- Make create kmalloc_cache return a kmem_cache * pointer.

Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
---

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