From: Christoph Lameter <clameter@sgi.com>
Date: Tue, 17 Jul 2007 11:03:30 +0000 (-0700)
Subject: SLUB: Do not allocate object bit array on stack
X-Git-Tag: v2.6.23-rc1~735
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=434e245ddd3f14aa8eef97cae16c71b863ab092a;p=pandora-kernel.git

SLUB: Do not allocate object bit array on stack

The objects per slab increase with the current patches in mm since we allow up
to order 3 allocs by default.  More patches in mm actually allow to use 2M or
higher sized slabs.  For slab validation we need per object bitmaps in order
to check a slab.  We end up with up to 64k objects per slab resulting in a
potential requirement of 8K stack space.  That does not look good.

Allocate the bit arrays via kmalloc.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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