[patch 2/4] add x86-64 Kconfig options for sparsemem

[Matt Tolentino <metolent@snoqualmie.dp.intel.com>]

Add the requisite arch specific Kconfig options to enable 
the use of the sparsemem implementation for NUMA kernels
on x86-64.

Signed-off-by: Matt Tolentino <matthew.e.tolentino@intel.com>
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
---

 arch/x86_64/Kconfig |   19 +++++++++++++++++++
 1 files changed, 19 insertions(+)

diff -urNp linux-2.6.12-rc4-mm2/arch/x86_64/Kconfig linux-2.6.12-rc4-mm2-m/arch/x86_64/Kconfig
--- linux-2.6.12-rc4-mm2/arch/x86_64/Kconfig	2005-05-18 07:38:20.000000000 -0400
+++ linux-2.6.12-rc4-mm2-m/arch/x86_64/Kconfig	2005-05-18 07:44:42.000000000 -0400
@@ -274,8 +274,27 @@ config NUMA
        bool
        default n
 
+config ARCH_DISCONTIGMEM_ENABLE
+	def_bool y
+	depends on NUMA
+
+config ARCH_DISCONTIGMEM_DEFAULT
+	def_bool y
+	depends on NUMA
+
+config ARCH_SPARSEMEM_ENABLE
+	def_bool y
+	depends on NUMA
+
+config ARCH_FLATMEM_ENABLE
+	def_bool y
+	depends on !NUMA
+
 source "mm/Kconfig"
 
+config HAVE_ARCH_EARLY_PFN_TO_NID
+	def_bool y
+
 config HAVE_DEC_LOCK
 	bool
 	depends on SMP
-
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