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authorYasunori Goto <y-goto@jp.fujitsu.com>2006-06-27 02:53:38 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-27 17:32:36 -0700
commit0fc44159bfcb5b0afa178f9c3f50db23aebc76ff (patch)
treed87e47c0f5e6b2eff1d9113d3495d185924734d9 /drivers/base/node.c
parent1f04bbd2d396a701c5af2e5b92bad896c2550c16 (diff)
downloadlinux-0fc44159bfcb5b0afa178f9c3f50db23aebc76ff.tar.bz2
[PATCH] Register sysfs file for hotplugged new node
When new node becomes enable by hot-add, new sysfs file must be created for new node. So, if new node is enabled by add_memory(), register_one_node() is called to create it. In addition, I386's arch_register_node() and a part of register_nodes() of powerpc are consolidated to register_one_node() as a generic_code(). This is tested by Tiger4(IPF) with node hot-plug emulation. Signed-off-by: Keiichiro Tokunaga <tokuanga.keiich@jp.fujitsu.com> Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/base/node.c')
-rw-r--r--drivers/base/node.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/base/node.c b/drivers/base/node.c
index c80c3aeed004..cbd0f62b4870 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -190,6 +190,31 @@ void unregister_node(struct node *node)
sysdev_unregister(&node->sysdev);
}
+struct node node_devices[MAX_NUMNODES];
+
+int register_one_node(int nid)
+{
+ int error = 0;
+
+ if (node_online(nid)) {
+ int p_node = parent_node(nid);
+ struct node *parent = NULL;
+
+ if (p_node != nid)
+ parent = &node_devices[p_node];
+
+ error = register_node(&node_devices[nid], nid, parent);
+ }
+
+ return error;
+
+}
+
+void unregister_one_node(int nid)
+{
+ unregister_node(&node_devices[nid]);
+}
+
static int __init register_node_type(void)
{
return sysdev_class_register(&node_class);