1 files changed, 10 insertions, 50 deletions

diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index b984b947f5db..b34823755ee4 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -162,19 +162,24 @@ 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
  * @to_pull:            LITMUS^RT list of timers to be pulled on this cpu
  */
 struct hrtimer_cpu_base {
-        spinlock_t                      lock;
+        raw_spinlock_t                  lock;
         struct hrtimer_clock_base       clock_base[HRTIMER_MAX_CLOCK_BASES];
 #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
         struct list_head                to_pull;
 };
@@ -460,49 +465,4 @@ extern u64 ktime_divns(const ktime_t kt, s64 div);
 /* Show pending timers: */
 extern void sysrq_timer_list_show(void);
 
-/*
- * Timer-statistics info:
- */
-#ifdef CONFIG_TIMER_STATS
-
-extern void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
-                                     void *timerf, char *comm,
-                                     unsigned int timer_flag);
-
-static inline void timer_stats_account_hrtimer(struct hrtimer *timer)
-{
-        if (likely(!timer->start_site))
-                return;
-        timer_stats_update_stats(timer, timer->start_pid, timer->start_site,
-                                 timer->function, timer->start_comm, 0);
-}
-
-extern void __timer_stats_hrtimer_set_start_info(struct hrtimer *timer,
-                                                 void *addr);
-
-static inline void timer_stats_hrtimer_set_start_info(struct hrtimer *timer)
-{
-        if (likely(!timer_stats_active))
-                return;
-        __timer_stats_hrtimer_set_start_info(timer, __builtin_return_address(0));
-}
-
-static inline void timer_stats_hrtimer_clear_start_info(struct hrtimer *timer)
-{
-        timer->start_site = NULL;
-}
-#else
-static inline void timer_stats_account_hrtimer(struct hrtimer *timer)
-{
-}
-
-static inline void timer_stats_hrtimer_set_start_info(struct hrtimer *timer)
-{
-}
-
-static inline void timer_stats_hrtimer_clear_start_info(struct hrtimer *timer)
-{
-}
-#endif
-
 #endif