x86: allow NODES_SHIFT to be a config option on x86_64

Allow the maximum number of nodes in an x86_64 system to
be configurable. This patch does NOT change the default value
but allows the value to be a config option.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 6299231..e50e38e 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -885,7 +885,7 @@ config NUMA_EMU
          number of nodes. This is only useful for debugging.
 
 config NODES_SHIFT
-       int
+       int "Max num nodes shift(1-15)"
        range 1 15  if X86_64
        default "6" if X86_64
        default "4" if X86_NUMAQ