23 files changed, 60 insertions, 143 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 9bef61b30367..8290b69da202 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -549,6 +549,11 @@ config NUMA
 	  Access).  This option is for configuring high-end multiprocessor
 	  server machines.  If in doubt, say N.
 
+config NODES_SHIFT
+	int
+	default "7"
+	depends on NEED_MULTIPLE_NODES
+
 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
 config ALPHA_LARGE_VMALLOC
 	bool
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index dc5a9332c915..1dbf6ddb300d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -512,6 +512,12 @@ config ARCH_DISCONTIGMEM_ENABLE
 	  or have huge holes in the physical address space for other reasons.
 	  See <file:Documentation/vm/numa> for more.
 
+config NODES_SHIFT
+	int
+	default "4" if ARCH_LH7A40X
+	default "2"
+	depends on NEED_MULTIPLE_NODES
+
 source "mm/Kconfig"
 
 config LEDS
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 57301db056f5..18ec9fe6deb6 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -522,6 +522,12 @@ config NUMA
 comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
 	depends on X86_SUMMIT && (!HIGHMEM64G || !ACPI)
 
+config NODES_SHIFT
+	int
+	default "4" if X86_NUMAQ
+	default "3"
+	depends on NEED_MULTIPLE_NODES
+
 config HAVE_ARCH_BOOTMEM_NODE
 	bool
 	depends on NUMA
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index edffe25a477a..9f40eeff0b5c 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -260,15 +260,6 @@ config NR_CPUS
 	  than 64 will cause the use of a CPU mask array, causing a small
 	  performance hit.
 
-config IA64_NR_NODES
-	int "Maximum number of NODEs (256-1024)" if (IA64_SGI_SN2 || IA64_GENERIC)
-	range 256 1024
-	depends on IA64_SGI_SN2 || IA64_GENERIC
-	default "256"
-	help
-	  This option specifies the maximum number of nodes in your SSI system.
-	  If in doubt, use the default.
-
 config HOTPLUG_CPU
 	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
 	depends on SMP && EXPERIMENTAL
@@ -352,6 +343,16 @@ config NUMA
 	  Access).  This option is for configuring high-end multiprocessor
 	  server systems.  If in doubt, say N.
 
+config NODES_SHIFT
+	int "Max num nodes shift(3-10)"
+	range 3 10
+	default "8"
+	depends on NEED_MULTIPLE_NODES
+	help
+	  This option specifies the maximum number of nodes in your SSI system.
+	  MAX_NUMNODES will be 2^(This value).
+	  If in doubt, use the default.
+
 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
 # VIRTUAL_MEM_MAP has been retained for historical reasons.
 config VIRTUAL_MEM_MAP
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index 05c864c6c2d9..41fd490af3b4 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -285,6 +285,11 @@ config NUMA
 	depends on SMP && BROKEN
 	default n
 
+config NODES_SHIFT
+	int
+	default "1"
+	depends on NEED_MULTIPLE_NODES
+
 # turning this on wastes a bunch of space.
 # Summit needs it only when NUMA is on
 config BOOT_IOREMAP
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index e15709ce8866..7aec60d40420 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1590,6 +1590,11 @@ config ARCH_FLATMEM_ENABLE
 	def_bool y
 	depends on !NUMA
 
+config NODES_SHIFT
+	int
+	default "6"
+	depends on NEED_MULTIPLE_NODES
+
 source "mm/Kconfig"
 
 config SMP
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 2fdf21989dc2..19f911c5dd58 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -177,6 +177,11 @@ config ARCH_DISCONTIGMEM_DEFAULT
 	def_bool y
 	depends on ARCH_DISCONTIGMEM_ENABLE
 
+config NODES_SHIFT
+	int
+	default "3"
+	depends on NEED_MULTIPLE_NODES
+
 source "kernel/Kconfig.preempt"
 source "kernel/Kconfig.hz"
 source "mm/Kconfig"
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 2cdc35ce8045..167e70e95556 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -649,6 +649,11 @@ config NUMA
 	depends on PPC64
 	default y if SMP && PPC_PSERIES
 
+config NODES_SHIFT
+	int
+	default "4"
+	depends on NEED_MULTIPLE_NODES
+
 config ARCH_SELECT_MEMORY_MODEL
 	def_bool y
 	depends on PPC64
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 58583f459471..2bcecf422573 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -527,6 +527,11 @@ config CPU_HAS_SR_RB
 	  See <file:Documentation/sh/register-banks.txt> for further
 	  information on SR.RB and register banking in the kernel in general.
 
+config NODES_SHIFT
+	int
+	default "1"
+	depends on NEED_MULTIPLE_NODES
+
 endmenu
 
 menu "Boot options"
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 7df2fe1844be..408d44a59756 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -288,6 +288,11 @@ config K8_NUMA
 	 Northbridge of Opteron. It is recommended to use X86_64_ACPI_NUMA
 	 instead, which also takes priority if both are compiled in.   
 
+config NODES_SHIFT
+	int
+	default "6"
+	depends on NEED_MULTIPLE_NODES
+
 # Dummy CONFIG option to select ACPI_NUMA from drivers/acpi/Kconfig.
 
 config X86_64_ACPI_NUMA
diff --git a/include/asm-alpha/numnodes.h b/include/asm-alpha/numnodes.h
deleted file mode 100644
index cd425827e4f3..000000000000
--- a/include/asm-alpha/numnodes.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef _ASM_MAX_NUMNODES_H
-#define _ASM_MAX_NUMNODES_H
-
-/* Max 128 Nodes - Marvel */
-#define NODES_SHIFT	7
-
-#endif /* _ASM_MAX_NUMNODES_H */
diff --git a/include/asm-arm/arch-lh7a40x/memory.h b/include/asm-arm/arch-lh7a40x/memory.h
index c92bcb837629..9f1a58cbf407 100644
--- a/include/asm-arm/arch-lh7a40x/memory.h
+++ b/include/asm-arm/arch-lh7a40x/memory.h
@@ -31,8 +31,6 @@
 
 #ifdef CONFIG_DISCONTIGMEM
 
-#define NODES_SHIFT	4	/* Up to 16 nodes */
-
 /*
  * Given a kernel address, find the home node of the underlying memory.
  */
diff --git a/include/asm-arm/numnodes.h b/include/asm-arm/numnodes.h
deleted file mode 100644
index 8df36818ebc9..000000000000
--- a/include/asm-arm/numnodes.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- *  linux/include/asm-arm/numnodes.h
- *
- *  Copyright (C) 2002 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/* This declaration for the size of the NUMA (CONFIG_DISCONTIGMEM)
- * memory node table is the default.
- *
- * A good place to override this value is include/asm/arch/memory.h.
- */
-
-#ifndef __ASM_ARM_NUMNODES_H
-#define __ASM_ARM_NUMNODES_H
-
-#include <asm/memory.h>
-
-#ifndef NODES_SHIFT
-# define NODES_SHIFT	2	/* Normally, Max 4 Nodes */
-#endif
-
-#endif
diff --git a/include/asm-i386/numnodes.h b/include/asm-i386/numnodes.h
deleted file mode 100644
index a61f38c8176f..000000000000
--- a/include/asm-i386/numnodes.h
+++ /dev/null
@@ -1,18 +0,0 @@
-#ifndef _ASM_MAX_NUMNODES_H
-#define _ASM_MAX_NUMNODES_H
-
-#include <linux/config.h>
-
-#ifdef CONFIG_X86_NUMAQ
-
-/* Max 16 Nodes */
-#define NODES_SHIFT	4
-
-#elif defined(CONFIG_ACPI_SRAT)
-
-/* Max 8 Nodes */
-#define NODES_SHIFT	3
-
-#endif /* CONFIG_X86_NUMAQ */
-
-#endif /* _ASM_MAX_NUMNODES_H */
diff --git a/include/asm-ia64/numnodes.h b/include/asm-ia64/numnodes.h
deleted file mode 100644
index e9d356f549d9..000000000000
--- a/include/asm-ia64/numnodes.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef _ASM_MAX_NUMNODES_H
-#define _ASM_MAX_NUMNODES_H
-
-#ifdef CONFIG_IA64_DIG
-/* Max 8 Nodes */
-#  define NODES_SHIFT	3
-#elif defined(CONFIG_IA64_HP_ZX1) || defined(CONFIG_IA64_HP_ZX1_SWIOTLB)
-/* Max 32 Nodes */
-#  define NODES_SHIFT	5
-#elif defined(CONFIG_IA64_SGI_SN2) || defined(CONFIG_IA64_GENERIC)
-#  if CONFIG_IA64_NR_NODES == 256
-#    define NODES_SHIFT	8
-#  elif CONFIG_IA64_NR_NODES <= 512
-#    define NODES_SHIFT    9
-#  elif CONFIG_IA64_NR_NODES <= 1024
-#    define NODES_SHIFT    10
-#  endif
-#endif
-
-#endif /* _ASM_MAX_NUMNODES_H */
diff --git a/include/asm-m32r/numnodes.h b/include/asm-m32r/numnodes.h
deleted file mode 100644
index 479a39d49f83..000000000000
--- a/include/asm-m32r/numnodes.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef _ASM_NUMNODES_H_
-#define _ASM_NUMNODES_H_
-
-#include <linux/config.h>
-
-#ifdef CONFIG_DISCONTIGMEM
-
-#if defined(CONFIG_CHIP_M32700)
-#define	NODES_SHIFT	1	/* Max 2 Nodes */
-#endif	/* CONFIG_CHIP_M32700 */
-
-#endif	/* CONFIG_DISCONTIGMEM */
-
-#endif	/* _ASM_NUMNODES_H_ */
-
diff --git a/include/asm-mips/numnodes.h b/include/asm-mips/numnodes.h
deleted file mode 100644
index 4f00c16ceeb0..000000000000
--- a/include/asm-mips/numnodes.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef _ASM_MAX_NUMNODES_H
-#define _ASM_MAX_NUMNODES_H
-
-/* Max 128 Nodes */
-#define NODES_SHIFT	6
-
-#endif /* _ASM_MAX_NUMNODES_H */
diff --git a/include/asm-parisc/numnodes.h b/include/asm-parisc/numnodes.h
deleted file mode 100644
index 6c67651efd1c..000000000000
--- a/include/asm-parisc/numnodes.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef _ASM_MAX_NUMNODES_H
-#define _ASM_MAX_NUMNODES_H
-
-/* Max 8 Nodes */
-#define NODES_SHIFT	3
-
-#endif /* _ASM_MAX_NUMNODES_H */
diff --git a/include/asm-powerpc/numnodes.h b/include/asm-powerpc/numnodes.h
deleted file mode 100644
index e138edae09dd..000000000000
--- a/include/asm-powerpc/numnodes.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _ASM_POWERPC_MAX_NUMNODES_H
-#define _ASM_POWERPC_MAX_NUMNODES_H
-#ifdef __KERNEL__
-
-/* Max 16 Nodes */
-#define NODES_SHIFT	4
-
-#endif /* __KERNEL__ */
-#endif /* _ASM_POWERPC_MAX_NUMNODES_H */
diff --git a/include/asm-sh/numnodes.h b/include/asm-sh/numnodes.h
deleted file mode 100644
index f73e85b72ecb..000000000000
--- a/include/asm-sh/numnodes.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef _ASM_MAX_NUMNODES_H
-#define _ASM_MAX_NUMNODES_H
-
-/* Max 2 Nodes */
-#define NODES_SHIFT	1
-
-#endif /* _ASM_MAX_NUMNODES_H */
diff --git a/include/asm-x86_64/numa.h b/include/asm-x86_64/numa.h
index f0ba4d984bdf..1cc92fe02503 100644
--- a/include/asm-x86_64/numa.h
+++ b/include/asm-x86_64/numa.h
@@ -2,7 +2,6 @@
 #define _ASM_X8664_NUMA_H 1
 
 #include <linux/nodemask.h>
-#include <asm/numnodes.h>
 
 struct bootnode {
 	u64 start,end; 
diff --git a/include/asm-x86_64/numnodes.h b/include/asm-x86_64/numnodes.h
deleted file mode 100644
index 5a1d506b8299..000000000000
--- a/include/asm-x86_64/numnodes.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef _ASM_X8664_NUMNODES_H
-#define _ASM_X8664_NUMNODES_H 1
-
-#include <linux/config.h>
-
-#ifdef CONFIG_NUMA
-#define NODES_SHIFT	6
-#endif
-
-#endif
diff --git a/include/linux/numa.h b/include/linux/numa.h
index f0c539bd3cfc..e481feb1bfd8 100644
--- a/include/linux/numa.h
+++ b/include/linux/numa.h
@@ -3,11 +3,9 @@
 
 #include <linux/config.h>
 
-#ifndef CONFIG_FLATMEM
-#include <asm/numnodes.h>
-#endif
-
-#ifndef NODES_SHIFT
+#ifdef CONFIG_NODES_SHIFT
+#define NODES_SHIFT     CONFIG_NODES_SHIFT
+#else
 #define NODES_SHIFT     0
 #endif