x86: fixup NR-CPUS patch for numa

This patch removes the EXPORT_SYMBOL for:

	x86_cpu_to_node_map_init
	x86_cpu_to_node_map_early_ptr

... thus fixing the section mismatch problem.

Also, the mem -> node hash lookup is fixed.
Signed-off-by: NMike Travis <travis@sgi.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

arch/x86/mm/numa_64.c

@@ -35,8 +35,6 @@ u16 x86_cpu_to_node_map_init[NR_CPUS] = {
 	[0 ... NR_CPUS-1] = NUMA_NO_NODE
 };
 void *x86_cpu_to_node_map_early_ptr;
-EXPORT_SYMBOL(x86_cpu_to_node_map_init);
-EXPORT_SYMBOL(x86_cpu_to_node_map_early_ptr);
 DEFINE_PER_CPU(u16, x86_cpu_to_node_map) = NUMA_NO_NODE;
 EXPORT_PER_CPU_SYMBOL(x86_cpu_to_node_map);
 
@@ -88,7 +86,7 @@ static int __init allocate_cachealigned_memnodemap(void)
 	unsigned long pad, pad_addr;
 
 	memnodemap = memnode.embedded_map;
-	if (memnodemapsize <= 48)
+	if (memnodemapsize <= ARRAY_SIZE(memnode.embedded_map))
 		return 0;
 
 	pad = L1_CACHE_BYTES - 1;