From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>

Create symblic link from newly-added-node to its cpus.

Ideally, node should be onlined before cpu-hot-add.  But it cannot be always
achieved (at node-hot-add.)

This patch registers cpus to its node when the node is registered.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 drivers/base/node.c |    7 +++++++
 1 files changed, 7 insertions(+)

diff -puN drivers/base/node.c~node-hotplug-register_node-fix drivers/base/node.c
--- 25/drivers/base/node.c~node-hotplug-register_node-fix	Wed May 24 13:03:47 2006
+++ 25-akpm/drivers/base/node.c	Wed May 24 13:03:47 2006
@@ -225,6 +225,7 @@ int unregister_cpu_under_node(unsigned i
 int register_one_node(int nid)
 {
 	int error = 0;
+	int cpu;
 
 	if (node_online(nid)) {
 		int p_node = parent_node(nid);
@@ -234,6 +235,12 @@ int register_one_node(int nid)
 			parent = &node_devices[p_node];
 
 		error = register_node(&node_devices[nid], nid, parent);
+
+		/* link cpu under this node */
+		for_each_present_cpu(cpu) {
+			if (cpu_to_node(cpu) == nid)
+				register_cpu_under_node(cpu, nid);
+		}
 	}
 
 	return error;
_