---

yaml --- r: 48578 b: refs/heads/master c: fd064b9 h: refs/heads/master v: v3
git-mirror · Feb 16, 2007 · 6acab75 · 6acab75
1 parent 8c79ec8
commit 6acab75
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Showing 4 changed files with 23 additions and 5 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1cfd68496e53f7be09a3c1358d1d389004217541
+refs/heads/master: fd064b9b7770d5c7705bf9542950c7bd81c30f98
diff --git a/trunk/include/linux/timer.h b/trunk/include/linux/timer.h
@@ -61,7 +61,17 @@ extern int del_timer(struct timer_list * timer);
 extern int __mod_timer(struct timer_list *timer, unsigned long expires);
 extern int mod_timer(struct timer_list *timer, unsigned long expires);
 
+/*
+ * Return when the next timer-wheel timeout occurs (in absolute jiffies),
+ * locks the timer base:
+ */
 extern unsigned long next_timer_interrupt(void);
+/*
+ * Return when the next timer-wheel timeout occurs (in absolute jiffies),
+ * locks the timer base and does the comparison against the given
+ * jiffie.
+ */
+extern unsigned long get_next_timer_interrupt(unsigned long now);
 
 /**
  * add_timer - start a timer

diff --git a/trunk/kernel/hrtimer.c b/trunk/kernel/hrtimer.c
@@ -533,7 +533,7 @@ ktime_t hrtimer_get_remaining(const struct hrtimer *timer)
 }
 EXPORT_SYMBOL_GPL(hrtimer_get_remaining);
 
-#ifdef CONFIG_NO_IDLE_HZ
+#if defined(CONFIG_NO_IDLE_HZ) || defined(CONFIG_NO_HZ)
 /**
  * hrtimer_get_next_event - get the time until next expiry event
  *

diff --git a/trunk/kernel/timer.c b/trunk/kernel/timer.c
@@ -591,7 +591,7 @@ static inline void __run_timers(tvec_base_t *base)
 	spin_unlock_irq(&base->lock);
 }
 
-#ifdef CONFIG_NO_IDLE_HZ
+#if defined(CONFIG_NO_IDLE_HZ) || defined(CONFIG_NO_HZ)
 /*
  * Find out when the next timer event is due to happen. This
  * is used on S/390 to stop all activity when a cpus is idle.
@@ -687,10 +687,10 @@ static unsigned long cmp_next_hrtimer_event(unsigned long now,
 /**
  * next_timer_interrupt - return the jiffy of the next pending timer
  */
-unsigned long next_timer_interrupt(void)
+unsigned long get_next_timer_interrupt(unsigned long now)
 {
 	tvec_base_t *base = __get_cpu_var(tvec_bases);
-	unsigned long expires, now = jiffies;
+	unsigned long expires;
 
 	spin_lock(&base->lock);
 	expires = __next_timer_interrupt(base);
@@ -701,6 +701,14 @@ unsigned long next_timer_interrupt(void)
 
 	return cmp_next_hrtimer_event(now, expires);
 }
+
+#ifdef CONFIG_NO_IDLE_HZ
+unsigned long next_timer_interrupt(void)
+{
+	return get_next_timer_interrupt(jiffies);
+}
+#endif
+
 #endif
 
 /******************************************************************/