[IA64] Zonelists for nodes without cpus

If a node runs out of memory, ensure that memory on nodes w/o cpus is used
before using memory on nodes with cpus.

Signed-off-by: Jack Steiner <[e-mail]>
Signed-off-by: Tony Luck <[e-mail]>

include/asm-ia64/topology.h

···
 #include <asm/smp.h>
 
 #ifdef CONFIG_NUMA
+
+/* Nodes w/o CPUs are preferred for memory allocations, see build_zonelists */
+#define PENALTY_FOR_NODE_WITH_CPUS 255
+
 /*
  * Returns the number of the node containing CPU 'cpu'
  */