1 files changed, 5 insertions, 1 deletions

diff --git a/arch/ppc/kernel/idle.c b/arch/ppc/kernel/idle.c
index 53547b6de45b..fba29c876b62 100644
--- a/arch/ppc/kernel/idle.c
+++ b/arch/ppc/kernel/idle.c
@@ -22,6 +22,7 @@
 #include <linux/ptrace.h>
 #include <linux/slab.h>
 #include <linux/sysctl.h>
+#include <linux/cpu.h>
 
 #include <asm/pgtable.h>
 #include <asm/uaccess.h>
@@ -35,6 +36,7 @@
 void default_idle(void)
 {
         void (*powersave)(void);
+        int cpu = smp_processor_id();
 
         powersave = ppc_md.power_save;
 
@@ -44,7 +46,7 @@ void default_idle(void)
 #ifdef CONFIG_SMP
                 else {
                         set_thread_flag(TIF_POLLING_NRFLAG);
-                        while (!need_resched())
+                        while (!need_resched() && !cpu_is_offline(cpu))
                                 barrier();
                         clear_thread_flag(TIF_POLLING_NRFLAG);
                 }
@@ -52,6 +54,8 @@ void default_idle(void)
         }
         if (need_resched())
                 schedule();
+        if (cpu_is_offline(cpu) && system_state == SYSTEM_RUNNING)
+                cpu_die();
 }
 
 /*