aboutsummaryrefslogtreecommitdiffstats
path: root/arch/i386/kernel/topology.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/i386/kernel/topology.c')
-rw-r--r--arch/i386/kernel/topology.c28
1 files changed, 5 insertions, 23 deletions
diff --git a/arch/i386/kernel/topology.c b/arch/i386/kernel/topology.c
index 296355292c7c..e2e281d4bcc8 100644
--- a/arch/i386/kernel/topology.c
+++ b/arch/i386/kernel/topology.c
@@ -32,15 +32,8 @@
32 32
33static struct i386_cpu cpu_devices[NR_CPUS]; 33static struct i386_cpu cpu_devices[NR_CPUS];
34 34
35int arch_register_cpu(int num){ 35int arch_register_cpu(int num)
36 struct node *parent = NULL; 36{
37
38#ifdef CONFIG_NUMA
39 int node = cpu_to_node(num);
40 if (node_online(node))
41 parent = &node_devices[node].node;
42#endif /* CONFIG_NUMA */
43
44 /* 37 /*
45 * CPU0 cannot be offlined due to several 38 * CPU0 cannot be offlined due to several
46 * restrictions and assumptions in kernel. This basically 39 * restrictions and assumptions in kernel. This basically
@@ -50,21 +43,13 @@ int arch_register_cpu(int num){
50 if (!num) 43 if (!num)
51 cpu_devices[num].cpu.no_control = 1; 44 cpu_devices[num].cpu.no_control = 1;
52 45
53 return register_cpu(&cpu_devices[num].cpu, num, parent); 46 return register_cpu(&cpu_devices[num].cpu, num);
54} 47}
55 48
56#ifdef CONFIG_HOTPLUG_CPU 49#ifdef CONFIG_HOTPLUG_CPU
57 50
58void arch_unregister_cpu(int num) { 51void arch_unregister_cpu(int num) {
59 struct node *parent = NULL; 52 return unregister_cpu(&cpu_devices[num].cpu);
60
61#ifdef CONFIG_NUMA
62 int node = cpu_to_node(num);
63 if (node_online(node))
64 parent = &node_devices[node].node;
65#endif /* CONFIG_NUMA */
66
67 return unregister_cpu(&cpu_devices[num].cpu, parent);
68} 53}
69EXPORT_SYMBOL(arch_register_cpu); 54EXPORT_SYMBOL(arch_register_cpu);
70EXPORT_SYMBOL(arch_unregister_cpu); 55EXPORT_SYMBOL(arch_unregister_cpu);
@@ -74,16 +59,13 @@ EXPORT_SYMBOL(arch_unregister_cpu);
74 59
75#ifdef CONFIG_NUMA 60#ifdef CONFIG_NUMA
76#include <linux/mmzone.h> 61#include <linux/mmzone.h>
77#include <asm/node.h>
78
79struct i386_node node_devices[MAX_NUMNODES];
80 62
81static int __init topology_init(void) 63static int __init topology_init(void)
82{ 64{
83 int i; 65 int i;
84 66
85 for_each_online_node(i) 67 for_each_online_node(i)
86 arch_register_node(i); 68 register_one_node(i);
87 69
88 for_each_present_cpu(i) 70 for_each_present_cpu(i)
89 arch_register_cpu(i); 71 arch_register_cpu(i);