slub: Do not use frozen page flag but a bit in the page counters

From 50d5c41cd151b21ac1dfc98f048210456ccacc20 Mon Sep 17 00:00:00 2001
From: Christoph Lameter <cl@linux.com>
Date: Wed, 1 Jun 2011 12:25:45 -0500

Do not use a page flag for the frozen bit. It needs to be part
of the state that is handled with cmpxchg_double(). So use a bit
in the counter struct in the page struct for that purpose.

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

Conflicts:
	include/linux/mm_types.h