hrtimer: Tune hrtimer_interrupt hang logic

[safe/jmp/linux-2.6] / include / linux / hrtimer.h

diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 9bace4b..040b679 100644 (file)
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -162,10 +162,11 @@ struct hrtimer_clock_base {
  * @expires_next:      absolute time of the next event which was scheduled
  *                     via clock_set_next_event()
  * @hres_active:       State of high resolution mode
- * @check_clocks:      Indictator, when set evaluate time source and clock
- *                     event devices whether high resolution mode can be
- *                     activated.
- * @nr_events:         Total number of timer interrupt events
+ * @hang_detected:     The last hrtimer interrupt detected a hang
+ * @nr_events:         Total number of hrtimer interrupt events
+ * @nr_retries:                Total number of hrtimer interrupt retries
+ * @nr_hangs:          Total number of hrtimer interrupt hangs
+ * @max_hang_time:     Maximum time spent in hrtimer_interrupt
  */
 struct hrtimer_cpu_base {
        spinlock_t                      lock;
@@ -173,7 +174,11 @@ struct hrtimer_cpu_base {
 #ifdef CONFIG_HIGH_RES_TIMERS
        ktime_t                         expires_next;
        int                             hres_active;
+       int                             hang_detected;
        unsigned long                   nr_events;
+       unsigned long                   nr_retries;
+       unsigned long                   nr_hangs;
+       ktime_t                         max_hang_time;
 #endif
 };