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Date: Fri, 3 Mar 2006 09:52:52 -0600
From: Jack Steiner <steiner@sgi.com>
To: akpm@osdl.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] - Increase max kmalloc size for very large systems
Message-ID: <20060303155252.GA32159@sgi.com>
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Systems with extemely large numbers of nodes or cpus need to
kmalloc structures larger than is currently supported. This
patch increases the maximum supported size for very large systems.

This patch should have no effect on current systems.


	Signed-off-by: Jack Steiner <steiner@sgi.com>


Index: linux/include/linux/kmalloc_sizes.h
===================================================================
--- linux.orig/include/linux/kmalloc_sizes.h	2006-03-01 16:07:31.000000000 -0600
+++ linux/include/linux/kmalloc_sizes.h	2006-03-02 13:40:27.000000000 -0600
@@ -19,8 +19,10 @@
 	CACHE(32768)
 	CACHE(65536)
 	CACHE(131072)
-#ifndef CONFIG_MMU
+#if (NR_CPUS > 512) || (MAX_NUMNODES > 256) || !defined(CONFIG_MMU)
 	CACHE(262144)
+#endif
+#ifndef CONFIG_MMU
 	CACHE(524288)
 	CACHE(1048576)
 #ifdef CONFIG_LARGE_ALLOCS