[PATCH] make each arch use mm/Kconfig

For all architectures, this just means that you'll see a "Memory Model"
choice in your architecture menu.  For those that implement DISCONTIGMEM,
you may eventually want to make your ARCH_DISCONTIGMEM_ENABLE a "def_bool
y" and make your users select DISCONTIGMEM right out of the new choice
menu.  The only disadvantage might be if you have some specific things that
you need in your help option to explain something about DISCONTIGMEM.

Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index f7c9663..c5739d6 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -509,7 +509,7 @@
 	depends on SMP
 	default "64"
 
-config DISCONTIGMEM
+config ARCH_DISCONTIGMEM_ENABLE
 	bool "Discontiguous Memory Support (EXPERIMENTAL)"
 	depends on EXPERIMENTAL
 	help
@@ -518,6 +518,8 @@
 	  or have huge holes in the physical address space for other reasons.
 	  See <file:Documentation/vm/numa> for more.
 
+source "mm/Kconfig"
+
 config NUMA
 	bool "NUMA Support (EXPERIMENTAL)"
 	depends on DISCONTIGMEM