Merge branch 'linus' into x86/xen

[net-next-2.6.git] / arch / x86 / kernel / process_32.c

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 205188db96269c459d0d5cf739c6ce5495e082ea..922c14058f975d92cbb51d764d8a84256ad9f3fb 100644 (file)
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -76,47 +76,12 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
        return ((unsigned long *)tsk->thread.sp)[3];
 }
 
-#ifdef CONFIG_HOTPLUG_CPU
-#include <asm/nmi.h>
-
-static void cpu_exit_clear(void)
-{
-       int cpu = raw_smp_processor_id();
-
-       idle_task_exit();
-
-       cpu_uninit();
-       irq_ctx_exit(cpu);
-
-       cpu_clear(cpu, cpu_callout_map);
-       cpu_clear(cpu, cpu_callin_map);
-
-       numa_remove_cpu(cpu);
-       c1e_remove_cpu(cpu);
-}
-
-/* We don't actually take CPU down, just spin without interrupts. */
-static inline void play_dead(void)
-{
-       /* This must be done before dead CPU ack */
-       cpu_exit_clear();
-       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
+#ifndef CONFIG_SMP
 static inline void play_dead(void)
 {
        BUG();
 }
-#endif /* CONFIG_HOTPLUG_CPU */
+#endif
 
 /*
  * The idle thread. There's no useful work to be