X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-ia64%2Fnodedata.h;h=2fb337b0e9b786486508a6611c3e6e098ea58781;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=6b0f3ed89b7ee8fb5f5d39458c02b8d350f6b55f;hpb=6a77f38946aaee1cd85eeec6cf4229b204c15071;p=linux-2.6.git

diff --git a/include/asm-ia64/nodedata.h b/include/asm-ia64/nodedata.h
index 6b0f3ed89..2fb337b0e 100644
--- a/include/asm-ia64/nodedata.h
+++ b/include/asm-ia64/nodedata.h
@@ -11,13 +11,12 @@
 #ifndef _ASM_IA64_NODEDATA_H
 #define _ASM_IA64_NODEDATA_H
 
-#include <linux/config.h>
 #include <linux/numa.h>
 
 #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 +46,18 @@ struct ia64_node_data {
  */
 #define NODE_DATA(nid)		(local_node_data->pg_data_ptrs[nid])
 
-#endif /* CONFIG_DISCONTIGMEM */
+/*
+ * LOCAL_DATA_ADDR - This is to calculate the address of other node's
+ *		     "local_node_data" at hot-plug phase. The local_node_data
+ *		     is pointed by per_cpu_page. Kernel usually use it for
+ *		     just executing cpu. However, when new node is hot-added,
+ *		     the addresses of local data for other nodes are necessary
+ *		     to update all of them.
+ */
+#define LOCAL_DATA_ADDR(pgdat)  			\
+	((struct ia64_node_data *)((u64)(pgdat) + 	\
+				   L1_CACHE_ALIGN(sizeof(struct pglist_data))))
+
+#endif /* CONFIG_NUMA */
 
 #endif /* _ASM_IA64_NODEDATA_H */