slub: Dynamically size kmalloc cache allocations

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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>

...

This commit is contained in:

Christoph Lameter 2010-08-20 12:37:15 -05:00 • committed by Pekka Enberg

parent 6c182dc0de

commit 51df114281

2 changed files with 140 additions and 58 deletions

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7

include/linux/slub_def.h

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191

mm/slub.c

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