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-rw-r--r--include/linux/hrtimer.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 7400900de94..ff037f0b1b4 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -21,6 +21,7 @@
#include <linux/list.h>
#include <linux/wait.h>
#include <linux/percpu.h>
+#include <linux/timer.h>
struct hrtimer_clock_base;
@@ -90,7 +91,6 @@ enum hrtimer_restart {
* @function: timer expiry callback function
* @base: pointer to the timer base (per cpu and per clock)
* @state: state information (See bit values above)
- * @cb_entry: list head to enqueue an expired timer into the callback list
* @start_site: timer statistics field to store the site where the timer
* was started
* @start_comm: timer statistics field to store the name of the process which
@@ -107,7 +107,6 @@ struct hrtimer {
enum hrtimer_restart (*function)(struct hrtimer *);
struct hrtimer_clock_base *base;
unsigned long state;
- struct list_head cb_entry;
#ifdef CONFIG_TIMER_STATS
int start_pid;
void *start_site;
@@ -447,6 +446,8 @@ extern void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
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);
}
@@ -456,6 +457,8 @@ extern void __timer_stats_hrtimer_set_start_info(struct hrtimer *timer,
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));
}