[RFC][PATCH] node hotplug [3/3] register_node fix

[KAMEZAWA Hiroyuki]

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@xxxxxxxxxxxxxx>

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

Index: linux-2.6.17-rc4-mm3/drivers/base/node.c
===================================================================
--- linux-2.6.17-rc4-mm3.orig/drivers/base/node.c	2006-05-23 19:21:26.000000000 +0900
+++ linux-2.6.17-rc4-mm3/drivers/base/node.c	2006-05-23 19:27:27.000000000 +0900
@@ -227,6 +227,7 @@
 int register_one_node(int nid)
 {
 	int error = 0;
+	int cpu;
 
 	if (node_online(nid)) {
 		int p_node = parent_node(nid);
@@ -236,6 +237,12 @@
 			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;

-
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