[PATCH] add x86-64 Kconfig options for sparsemem

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>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 19 insertions, 0 deletions

diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 9f5b99e7b1eb..61ed16652347 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -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