[PATCH] V5 ia64 SPARSEMEM - conditional changes for SPARSEMEM

This patch introduces the conditional changes required for the three
memory models.  With [patch 1/4] there are three memory models; FLATMEM,
DISCONTIG and SPARSEMEM.  Also a new arch include file sparemem.h is
introduced for defining SPARSEMEM parameters.

Signed-off-by: Bob Picco <bob.picco@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
diff --git a/include/asm-ia64/nodedata.h b/include/asm-ia64/nodedata.h
index 6b0f3ed..9978c7c 100644
--- a/include/asm-ia64/nodedata.h
+++ b/include/asm-ia64/nodedata.h
@@ -17,7 +17,7 @@
 #include <asm/percpu.h>
 #include <asm/mmzone.h>
 
-#ifdef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_NUMA
 
 /*
  * Node Data. One of these structures is located on each node of a NUMA system.
@@ -47,6 +47,6 @@
  */
 #define NODE_DATA(nid)		(local_node_data->pg_data_ptrs[nid])
 
-#endif /* CONFIG_DISCONTIGMEM */
+#endif /* CONFIG_NUMA */
 
 #endif /* _ASM_IA64_NODEDATA_H */