X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-ia64%2Fnodedata.h;h=2fb337b0e9b786486508a6611c3e6e098ea58781;hb=refs%2Fheads%2Fvserver;hp=9978c7ce7549c32f2eeb5a1cc8ed36ef2de6d0ce;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git

diff --git a/include/asm-ia64/nodedata.h b/include/asm-ia64/nodedata.h
index 9978c7ce7..2fb337b0e 100644
--- a/include/asm-ia64/nodedata.h
+++ b/include/asm-ia64/nodedata.h
@@ -11,7 +11,6 @@
 #ifndef _ASM_IA64_NODEDATA_H
 #define _ASM_IA64_NODEDATA_H
 
-#include <linux/config.h>
 #include <linux/numa.h>
 
 #include <asm/percpu.h>
@@ -47,6 +46,18 @@ struct ia64_node_data {
  */
 #define NODE_DATA(nid)		(local_node_data->pg_data_ptrs[nid])
 
+/*
+ * 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 */