[PATCH] Really fix empty node 0 on x86-64

x86-64 shares some numa code with i386, and that didn't handle holes in
the node map properly.  Fix this.

arch/i386/mach-default/topology.c

@@ -41,8 +41,10 @@ static int __init topology_init(void)
 {
 	int i;
 
-	for (i = 0; i < num_online_nodes(); i++)
-		arch_register_node(i);
+	for (i = 0; i < MAX_NUMNODES; i++) {
+		if (node_online(i))
+			arch_register_node(i);
+	}
 	for (i = 0; i < NR_CPUS; i++)
 		if (cpu_possible(i)) arch_register_cpu(i);
 	return 0;

include/asm-i386/cpu.h

@@ -18,10 +18,8 @@ static inline int arch_register_cpu(int num){
 	
 #ifdef CONFIG_NUMA
 	int node = cpu_to_node(num);
-
-	if (!node_online(node))
-		return 0; 
-	parent = &node_devices[node].node;
+	if (node_online(node))
+		parent = &node_devices[node].node;
 #endif /* CONFIG_NUMA */
 
 	return register_cpu(&cpu_devices[num].cpu, num, parent);