diff options
Diffstat (limited to 'arch/x86/kernel/process_32.c')
| -rw-r--r-- | arch/x86/kernel/process_32.c | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index d55eb49584b..633cf06578f 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -72,38 +72,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk) return ((unsigned long *)tsk->thread.sp)[3]; } -#ifdef CONFIG_HOTPLUG_CPU -#include <asm/nmi.h> - -/* We don't actually take CPU down, just spin without interrupts. */ -void native_play_dead(void) -{ - int cpu = raw_smp_processor_id(); - - idle_task_exit(); - - reset_lazy_tlbstate(); - - irq_ctx_exit(cpu); - - mb(); - /* Ack it */ - __get_cpu_var(cpu_state) = CPU_DEAD; - - /* - * With physical CPU hotplug, we should halt the cpu - */ - local_irq_disable(); - /* mask all interrupts, flush any and all caches, and halt */ - wbinvd_halt(); -} -#else -void native_play_dead(void) -{ - BUG(); -} -#endif /* CONFIG_HOTPLUG_CPU */ - /* * The idle thread. There's no useful work to be * done, so just try to conserve power and have a |