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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-11 20:49:09 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-11 20:49:09 -0800
commit3070f27d6ecb69364e7cffe16c8b15e1b8ef41dd (patch)
tree6a624eb764265b67b2765b978c749fbe08871886 /include
parent1e57c2186fc204ecd5e47f279d00eba3c3db245c (diff)
parente9c0748b687aa70179a9e6d8ffc24b2874fe350b (diff)
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Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: itimer: Fix the itimer trace print format hrtimer: move timer stats helper functions to hrtimer.c hrtimer: Tune hrtimer_interrupt hang logic
Diffstat (limited to 'include')
-rw-r--r--include/linux/hrtimer.h56
-rw-r--r--include/trace/events/timer.h8
2 files changed, 13 insertions, 51 deletions
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 9bace4b9f4f..af634e95871 100644
--- 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
};
@@ -435,47 +440,4 @@ 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_stats_active))
- 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)
-{
- __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
diff --git a/include/trace/events/timer.h b/include/trace/events/timer.h
index e5ce87a0498..9496b965d62 100644
--- a/include/trace/events/timer.h
+++ b/include/trace/events/timer.h
@@ -301,8 +301,8 @@ TRACE_EVENT(itimer_state,
__entry->interval_usec = value->it_interval.tv_usec;
),
- TP_printk("which=%d expires=%lu it_value=%lu.%lu it_interval=%lu.%lu",
- __entry->which, __entry->expires,
+ TP_printk("which=%d expires=%llu it_value=%ld.%ld it_interval=%ld.%ld",
+ __entry->which, (unsigned long long)__entry->expires,
__entry->value_sec, __entry->value_usec,
__entry->interval_sec, __entry->interval_usec)
);
@@ -331,8 +331,8 @@ TRACE_EVENT(itimer_expire,
__entry->pid = pid_nr(pid);
),
- TP_printk("which=%d pid=%d now=%lu", __entry->which,
- (int) __entry->pid, __entry->now)
+ TP_printk("which=%d pid=%d now=%llu", __entry->which,
+ (int) __entry->pid, (unsigned long long)__entry->now)
);
#endif /* _TRACE_TIMER_H */