4 files changed, 26 insertions, 21 deletions
diff --git a/include/linux/alarmtimer.h b/include/linux/alarmtimer.h
index 3ffa5341dce2..2014288ca2f4 100644
--- a/include/linux/alarmtimer.h
+++ b/include/linux/alarmtimer.h
@@ -42,11 +42,14 @@ struct alarm {
 	void			*data;
 };
 
+static __always_inline ktime_t alarm_get_expires(struct alarm *alarm)
+{
+	return alarm->node.expires;
+}
+
 void alarm_init(struct alarm *alarm, enum alarmtimer_type type,
 		void (*function)(struct alarm *, ktime_t));
-void alarm_start(struct alarm *alarm, ktime_t start);
-void alarm_start_relative(struct alarm *alarm, ktime_t start);
-void alarm_restart(struct alarm *alarm);
+bool alarm_start_timer(struct alarm *alarm, ktime_t expires, bool relative);
 int alarm_try_to_cancel(struct alarm *alarm);
 int alarm_cancel(struct alarm *alarm);
 
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index c5b34c16602e..b12a6d19aa60 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -239,8 +239,6 @@ __clocksource_register_scale(struct clocksource *cs, u32 scale, u32 freq);
 extern int
 __devm_clocksource_register_scale(struct device *dev, struct clocksource *cs,
 				  u32 scale, u32 freq);
-extern void
-__clocksource_update_freq_scale(struct clocksource *cs, u32 scale, u32 freq);
 
 /*
  * Don't call this unless you are a default clocksource
@@ -273,16 +271,6 @@ static inline int devm_clocksource_register_khz(struct device *dev,
 	return __devm_clocksource_register_scale(dev, cs, 1000, khz);
 }
 
-static inline void __clocksource_update_freq_hz(struct clocksource *cs, u32 hz)
-{
-	__clocksource_update_freq_scale(cs, 1, hz);
-}
-
-static inline void __clocksource_update_freq_khz(struct clocksource *cs, u32 khz)
-{
-	__clocksource_update_freq_scale(cs, 1000, khz);
-}
-
 #ifdef CONFIG_ARCH_CLOCKSOURCE_INIT
 extern void clocksource_arch_init(struct clocksource *cs);
 #else
diff --git a/include/linux/delay.h b/include/linux/delay.h
index 46412c00033a..68b2a69dd24d 100644
--- a/include/linux/delay.h
+++ b/include/linux/delay.h
@@ -110,7 +110,7 @@ static const unsigned int max_slack_shift = 2;
  * fsleep - flexible sleep which autoselects the best mechanism
  * @usecs:	requested sleep duration in microseconds
  *
- * flseep() selects the best mechanism that will provide maximum 25% slack
+ * fsleep() selects the best mechanism that will provide maximum 25% slack
  * to the requested sleep duration. Therefore it uses:
  *
  * * udelay() loop for sleep durations <= 10 microseconds to avoid hrtimer
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 9ced498fefaa..6862dea0acc5 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -206,6 +206,9 @@ static inline void destroy_hrtimer_on_stack(struct hrtimer *timer) { }
 extern void hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim,
 				   u64 range_ns, const enum hrtimer_mode mode);
 
+extern bool hrtimer_start_range_ns_user(struct hrtimer *timer, ktime_t tim,
+					u64 range_ns, const enum hrtimer_mode mode);
+
 /**
  * hrtimer_start - (re)start an hrtimer
  * @timer:	the timer to be added
@@ -223,17 +226,28 @@ static inline void hrtimer_start(struct hrtimer *timer, ktime_t tim,
 extern int hrtimer_cancel(struct hrtimer *timer);
 extern int hrtimer_try_to_cancel(struct hrtimer *timer);
 
-static inline void hrtimer_start_expires(struct hrtimer *timer,
-					 enum hrtimer_mode mode)
+static inline void hrtimer_start_expires(struct hrtimer *timer, enum hrtimer_mode mode)
 {
-	u64 delta;
 	ktime_t soft, hard;
+	u64 delta;
+
 	soft = hrtimer_get_softexpires(timer);
 	hard = hrtimer_get_expires(timer);
 	delta = ktime_to_ns(ktime_sub(hard, soft));
 	hrtimer_start_range_ns(timer, soft, delta, mode);
 }
 
+static inline bool hrtimer_start_expires_user(struct hrtimer *timer, enum hrtimer_mode mode)
+{
+	ktime_t soft, hard;
+	u64 delta;
+
+	soft = hrtimer_get_softexpires(timer);
+	hard = hrtimer_get_expires(timer);
+	delta = ktime_to_ns(ktime_sub(hard, soft));
+	return hrtimer_start_range_ns_user(timer, soft, delta, mode);
+}
+
 void hrtimer_sleeper_start_expires(struct hrtimer_sleeper *sl,
 				   enum hrtimer_mode mode);
 
@@ -254,8 +268,8 @@ static inline ktime_t hrtimer_get_remaining(const struct hrtimer *timer)
 	return __hrtimer_get_remaining(timer, false);
 }
 
-extern u64 hrtimer_get_next_event(void);
-extern u64 hrtimer_next_event_without(const struct hrtimer *exclude);
+extern ktime_t hrtimer_get_next_event(void);
+extern ktime_t hrtimer_next_event_without(const struct hrtimer *exclude);
 
 extern bool hrtimer_active(const struct hrtimer *timer);