hrtimer: rename the "expires" struct member to avoid accidental usage

[linux-2.6-omap-h63xx.git] / include / linux / hrtimer.h

diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 31a4d653389f6d8e76405451c75f88c721328c03..485a634fd6e2cc1b17ec4cbf2e2e4d9667c954a5 100644 (file)
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -111,7 +111,7 @@ enum hrtimer_cb_mode {
  */
 struct hrtimer {
        struct rb_node                  node;
-       ktime_t                         expires;
+       ktime_t                         _expires;
        enum hrtimer_restart            (*function)(struct hrtimer *);
        struct hrtimer_clock_base       *base;
        unsigned long                   state;
@@ -217,6 +217,45 @@ static inline int hrtimer_is_hres_active(struct hrtimer *timer)
        return timer->base->cpu_base->hres_active;
 }
 
+static inline void hrtimer_set_expires(struct hrtimer *timer, ktime_t time)
+{
+       timer->_expires = time;
+}
+static inline void hrtimer_set_expires_tv64(struct hrtimer *timer, s64 tv64)
+{
+       timer->_expires.tv64 = tv64;
+}
+
+static inline void hrtimer_add_expires(struct hrtimer *timer, ktime_t time)
+{
+       timer->_expires = ktime_add_safe(timer->_expires, time);
+}
+
+static inline void hrtimer_add_expires_ns(struct hrtimer *timer, unsigned long ns)
+{
+       timer->_expires = ktime_add_ns(timer->_expires, ns);
+}
+
+static inline ktime_t hrtimer_get_expires(const struct hrtimer *timer)
+{
+       return timer->_expires;
+}
+
+static inline s64 hrtimer_get_expires_tv64(const struct hrtimer *timer)
+{
+       return timer->_expires.tv64;
+}
+
+static inline s64 hrtimer_get_expires_ns(const struct hrtimer *timer)
+{
+       return ktime_to_ns(timer->_expires);
+}
+
+static inline ktime_t hrtimer_expires_remaining(const struct hrtimer *timer)
+{
+    return ktime_sub(timer->_expires, timer->base->get_time());
+}
+
 /*
  * The resolution of the clocks. The resolution value is returned in
  * the clock_getres() system call to give application programmers an
@@ -287,9 +326,15 @@ extern int 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 int hrtimer_start_expires(struct hrtimer *timer,
+                                               enum hrtimer_mode mode)
+{
+       return hrtimer_start(timer, hrtimer_get_expires(timer), mode);
+}
+
 static inline int hrtimer_restart(struct hrtimer *timer)
 {
-       return hrtimer_start(timer, timer->expires, HRTIMER_MODE_ABS);
+       return hrtimer_start(timer, timer->_expires, HRTIMER_MODE_ABS);
 }
 
 /* Query timers: */
@@ -316,6 +361,15 @@ static inline int hrtimer_is_queued(struct hrtimer *timer)
                (HRTIMER_STATE_ENQUEUED | HRTIMER_STATE_PENDING);
 }
 
+/*
+ * Helper function to check, whether the timer is running the callback
+ * function
+ */
+static inline int hrtimer_callback_running(struct hrtimer *timer)
+{
+       return timer->state & HRTIMER_STATE_CALLBACK;
+}
+
 /* Forward a hrtimer so it expires after now: */
 extern u64
 hrtimer_forward(struct hrtimer *timer, ktime_t now, ktime_t interval);
@@ -337,6 +391,8 @@ extern long hrtimer_nanosleep_restart(struct restart_block *restart_block);
 extern void hrtimer_init_sleeper(struct hrtimer_sleeper *sl,
                                 struct task_struct *tsk);
 
+extern int schedule_hrtimeout(ktime_t *expires, const enum hrtimer_mode mode);
+
 /* Soft interrupt function to run the hrtimer queues: */
 extern void hrtimer_run_queues(void);
 extern void hrtimer_run_pending(void);