diff options
Diffstat (limited to 'arch/x86/kernel/topology.c')
| -rw-r--r-- | arch/x86/kernel/topology.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c index 7e16d675eb8..78cbb655aa7 100644 --- a/arch/x86/kernel/topology.c +++ b/arch/x86/kernel/topology.c @@ -31,9 +31,10 @@ #include <linux/mmzone.h> #include <asm/cpu.h> -static struct i386_cpu cpu_devices[NR_CPUS]; +static DEFINE_PER_CPU(struct x86_cpu, cpu_devices); -int __cpuinit arch_register_cpu(int num) +#ifdef CONFIG_HOTPLUG_CPU +int arch_register_cpu(int num) { /* * CPU0 cannot be offlined due to several @@ -44,21 +45,23 @@ int __cpuinit arch_register_cpu(int num) * Also certain PCI quirks require not to enable hotplug control * for all CPU's. */ -#ifdef CONFIG_HOTPLUG_CPU if (num) - cpu_devices[num].cpu.hotpluggable = 1; -#endif - - return register_cpu(&cpu_devices[num].cpu, num); + per_cpu(cpu_devices, num).cpu.hotpluggable = 1; + return register_cpu(&per_cpu(cpu_devices, num).cpu, num); } +EXPORT_SYMBOL(arch_register_cpu); -#ifdef CONFIG_HOTPLUG_CPU void arch_unregister_cpu(int num) { - return unregister_cpu(&cpu_devices[num].cpu); + return unregister_cpu(&per_cpu(cpu_devices, num).cpu); } -EXPORT_SYMBOL(arch_register_cpu); EXPORT_SYMBOL(arch_unregister_cpu); +#else +int arch_register_cpu(int num) +{ + return register_cpu(&per_cpu(cpu_devices, num).cpu, num); +} +EXPORT_SYMBOL(arch_register_cpu); #endif /*CONFIG_HOTPLUG_CPU*/ static int __init topology_init(void) |