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[PATCH] Register sysfs file for hotplugged new node

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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>
This commit is contained in:
Yasunori Goto
2006-06-27 02:53:38 -07:00
committed by Linus Torvalds
parent 1f04bbd2d3
commit 0fc44159bf
8 changed files with 48 additions and 63 deletions
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9
arch/i386/kernel/topology.c
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@@ -38,7 +38,7 @@ int arch_register_cpu(int num){
#ifdef CONFIG_NUMA
int node = cpu_to_node(num);
if (node_online(node))
parent = &node_devices[node].node;
parent = &node_devices[parent_node(node)];
#endif /* CONFIG_NUMA */
/*
@@ -61,7 +61,7 @@ void arch_unregister_cpu(int num) {
#ifdef CONFIG_NUMA
int node = cpu_to_node(num);
if (node_online(node))
parent = &node_devices[node].node;
parent = &node_devices[parent_node(node)];
#endif /* CONFIG_NUMA */
return unregister_cpu(&cpu_devices[num].cpu, parent);
@@ -74,16 +74,13 @@ EXPORT_SYMBOL(arch_unregister_cpu);
#ifdef CONFIG_NUMA
#include <linux/mmzone.h>
#include <asm/node.h>
struct i386_node node_devices[MAX_NUMNODES];
static int __init topology_init(void)
{
int i;
for_each_online_node(i)
arch_register_node(i);
register_one_node(i);
for_each_present_cpu(i)
arch_register_cpu(i);