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authorSteven Whitehouse <swhiteho@redhat.com>2006-07-03 10:25:08 -0400
committerSteven Whitehouse <swhiteho@redhat.com>2006-07-03 10:25:08 -0400
commit0a1340c185734a57fbf4775927966ad4a1347b02 (patch)
treed9ed8f0dd809a7c542a3356601125ea5b5aaa804 /include/asm-ia64/nodedata.h
parentaf18ddb8864b096e3ed4732e2d4b21c956dcfe3a (diff)
parent29454dde27d8e340bb1987bad9aa504af7081eba (diff)
Merge rsync://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: include/linux/kernel.h
Diffstat (limited to 'include/asm-ia64/nodedata.h')
-rw-r--r--include/asm-ia64/nodedata.h13
1 files changed, 12 insertions, 1 deletions
diff --git a/include/asm-ia64/nodedata.h b/include/asm-ia64/nodedata.h
index 9978c7ce754..2fb337b0e9b 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 */