1 files changed, 22 insertions, 8 deletions

diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 6afa5232dbb7..ca989158e847 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -8,7 +8,7 @@
 #include <linux/module.h>
 #include <linux/pm.h>
 #include <linux/clockchips.h>
-#include <linux/ftrace.h>
+#include <trace/power.h>
 #include <asm/system.h>
 #include <asm/apic.h>
 #include <asm/idle.h>
@@ -22,6 +22,9 @@ EXPORT_SYMBOL(idle_nomwait);
 
 struct kmem_cache *task_xstate_cachep;
 
+DEFINE_TRACE(power_start);
+DEFINE_TRACE(power_end);
+
 int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
 {
         *dst = *src;
@@ -65,11 +68,11 @@ void exit_thread(void)
 {
         struct task_struct *me = current;
         struct thread_struct *t = &me->thread;
+        unsigned long *bp = t->io_bitmap_ptr;
 
-        if (me->thread.io_bitmap_ptr) {
+        if (bp) {
                 struct tss_struct *tss = &per_cpu(init_tss, get_cpu());
 
-                kfree(t->io_bitmap_ptr);
                 t->io_bitmap_ptr = NULL;
                 clear_thread_flag(TIF_IO_BITMAP);
                 /*
@@ -78,6 +81,7 @@ void exit_thread(void)
                 memset(tss->io_bitmap, 0xff, t->io_bitmap_max);
                 t->io_bitmap_max = 0;
                 put_cpu();
+                kfree(bp);
         }
 
         ds_exit_thread(current);
@@ -324,7 +328,7 @@ void stop_this_cpu(void *dummy)
         /*
          * Remove this CPU:
          */
-        cpu_clear(smp_processor_id(), cpu_online_map);
+        set_cpu_online(smp_processor_id(), false);
         disable_local_APIC();
 
         for (;;) {
@@ -474,12 +478,13 @@ static int __cpuinit check_c1e_idle(const struct cpuinfo_x86 *c)
         return 1;
 }
 
-static cpumask_t c1e_mask = CPU_MASK_NONE;
+static cpumask_var_t c1e_mask;
 static int c1e_detected;
 
 void c1e_remove_cpu(int cpu)
 {
-        cpu_clear(cpu, c1e_mask);
+        if (c1e_mask != NULL)
+                cpumask_clear_cpu(cpu, c1e_mask);
 }
 
 /*
@@ -508,8 +513,8 @@ static void c1e_idle(void)
         if (c1e_detected) {
                 int cpu = smp_processor_id();
 
-                if (!cpu_isset(cpu, c1e_mask)) {
-                        cpu_set(cpu, c1e_mask);
+                if (!cpumask_test_cpu(cpu, c1e_mask)) {
+                        cpumask_set_cpu(cpu, c1e_mask);
                         /*
                          * Force broadcast so ACPI can not interfere. Needs
                          * to run with interrupts enabled as it uses
@@ -561,6 +566,15 @@ void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c)
                 pm_idle = default_idle;
 }
 
+void __init init_c1e_mask(void)
+{
+        /* If we're using c1e_idle, we need to allocate c1e_mask. */
+        if (pm_idle == c1e_idle) {
+                alloc_cpumask_var(&c1e_mask, GFP_KERNEL);
+                cpumask_clear(c1e_mask);
+        }
+}
+
 static int __init idle_setup(char *str)
 {
         if (!str)