1 files changed, 37 insertions, 41 deletions

diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index bbc5d1114583..3a95f9728778 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -489,11 +489,19 @@ static void *timer_debug_hint(void *addr)
 	return ((struct timer_list *) addr)->function;
 }
 
+static bool timer_is_static_object(void *addr)
+{
+	struct timer_list *timer = addr;
+
+	return (timer->entry.pprev == NULL &&
+		timer->entry.next == TIMER_ENTRY_STATIC);
+}
+
 /*
  * fixup_init is called when:
  * - an active object is initialized
  */
-static int timer_fixup_init(void *addr, enum debug_obj_state state)
+static bool timer_fixup_init(void *addr, enum debug_obj_state state)
 {
 	struct timer_list *timer = addr;
 
@@ -501,9 +509,9 @@ static int timer_fixup_init(void *addr, enum debug_obj_state state)
 	case ODEBUG_STATE_ACTIVE:
 		del_timer_sync(timer);
 		debug_object_init(timer, &timer_debug_descr);
-		return 1;
+		return true;
 	default:
-		return 0;
+		return false;
 	}
 }
 
@@ -516,36 +524,22 @@ static void stub_timer(unsigned long data)
 /*
  * fixup_activate is called when:
  * - an active object is activated
- * - an unknown object is activated (might be a statically initialized object)
+ * - an unknown non-static object is activated
  */
-static int timer_fixup_activate(void *addr, enum debug_obj_state state)
+static bool timer_fixup_activate(void *addr, enum debug_obj_state state)
 {
 	struct timer_list *timer = addr;
 
 	switch (state) {
-
 	case ODEBUG_STATE_NOTAVAILABLE:
-		/*
-		 * This is not really a fixup. The timer was
-		 * statically initialized. We just make sure that it
-		 * is tracked in the object tracker.
-		 */
-		if (timer->entry.pprev == NULL &&
-		    timer->entry.next == TIMER_ENTRY_STATIC) {
-			debug_object_init(timer, &timer_debug_descr);
-			debug_object_activate(timer, &timer_debug_descr);
-			return 0;
-		} else {
-			setup_timer(timer, stub_timer, 0);
-			return 1;
-		}
-		return 0;
+		setup_timer(timer, stub_timer, 0);
+		return true;
 
 	case ODEBUG_STATE_ACTIVE:
 		WARN_ON(1);
 
 	default:
-		return 0;
+		return false;
 	}
 }
 
@@ -553,7 +547,7 @@ static int timer_fixup_activate(void *addr, enum debug_obj_state state)
  * fixup_free is called when:
  * - an active object is freed
  */
-static int timer_fixup_free(void *addr, enum debug_obj_state state)
+static bool timer_fixup_free(void *addr, enum debug_obj_state state)
 {
 	struct timer_list *timer = addr;
 
@@ -561,9 +555,9 @@ static int timer_fixup_free(void *addr, enum debug_obj_state state)
 	case ODEBUG_STATE_ACTIVE:
 		del_timer_sync(timer);
 		debug_object_free(timer, &timer_debug_descr);
-		return 1;
+		return true;
 	default:
-		return 0;
+		return false;
 	}
 }
 
@@ -571,32 +565,23 @@ static int timer_fixup_free(void *addr, enum debug_obj_state state)
  * fixup_assert_init is called when:
  * - an untracked/uninit-ed object is found
  */
-static int timer_fixup_assert_init(void *addr, enum debug_obj_state state)
+static bool timer_fixup_assert_init(void *addr, enum debug_obj_state state)
 {
 	struct timer_list *timer = addr;
 
 	switch (state) {
 	case ODEBUG_STATE_NOTAVAILABLE:
-		if (timer->entry.next == TIMER_ENTRY_STATIC) {
-			/*
-			 * This is not really a fixup. The timer was
-			 * statically initialized. We just make sure that it
-			 * is tracked in the object tracker.
-			 */
-			debug_object_init(timer, &timer_debug_descr);
-			return 0;
-		} else {
-			setup_timer(timer, stub_timer, 0);
-			return 1;
-		}
+		setup_timer(timer, stub_timer, 0);
+		return true;
 	default:
-		return 0;
+		return false;
 	}
 }
 
 static struct debug_obj_descr timer_debug_descr = {
 	.name			= "timer_list",
 	.debug_hint		= timer_debug_hint,
+	.is_static_object	= timer_is_static_object,
 	.fixup_init		= timer_fixup_init,
 	.fixup_activate		= timer_fixup_activate,
 	.fixup_free		= timer_fixup_free,
@@ -1566,6 +1551,17 @@ signed long __sched schedule_timeout_uninterruptible(signed long timeout)
 }
 EXPORT_SYMBOL(schedule_timeout_uninterruptible);
 
+/*
+ * Like schedule_timeout_uninterruptible(), except this task will not contribute
+ * to load average.
+ */
+signed long __sched schedule_timeout_idle(signed long timeout)
+{
+	__set_current_state(TASK_IDLE);
+	return schedule_timeout(timeout);
+}
+EXPORT_SYMBOL(schedule_timeout_idle);
+
 #ifdef CONFIG_HOTPLUG_CPU
 static void migrate_timer_list(struct tvec_base *new_base, struct hlist_head *head)
 {
@@ -1698,10 +1694,10 @@ EXPORT_SYMBOL(msleep_interruptible);
 static void __sched do_usleep_range(unsigned long min, unsigned long max)
 {
 	ktime_t kmin;
-	unsigned long delta;
+	u64 delta;
 
 	kmin = ktime_set(0, min * NSEC_PER_USEC);
-	delta = (max - min) * NSEC_PER_USEC;
+	delta = (u64)(max - min) * NSEC_PER_USEC;
 	schedule_hrtimeout_range(&kmin, delta, HRTIMER_MODE_REL);
 }