diff options
| -rw-r--r-- | include/linux/alarmtimer.h | 1 | ||||
| -rw-r--r-- | kernel/time/alarmtimer.c | 6 |
2 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/alarmtimer.h b/include/linux/alarmtimer.h index f47dadc6dab..a899402a5a0 100644 --- a/include/linux/alarmtimer.h +++ b/include/linux/alarmtimer.h @@ -51,6 +51,7 @@ int alarm_cancel(struct alarm *alarm); u64 alarm_forward(struct alarm *alarm, ktime_t now, ktime_t interval); u64 alarm_forward_now(struct alarm *alarm, ktime_t interval); +ktime_t alarm_expires_remaining(const struct alarm *alarm); /* Provide way to access the rtc device being used by alarmtimers */ struct rtc_device *alarmtimer_get_rtcdev(void); diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c index adfcd78e79f..3e5cba27447 100644 --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -199,6 +199,12 @@ static enum hrtimer_restart alarmtimer_fired(struct hrtimer *timer) } +ktime_t alarm_expires_remaining(const struct alarm *alarm) +{ + struct alarm_base *base = &alarm_bases[alarm->type]; + return ktime_sub(alarm->node.expires, base->gettime()); +} + #ifdef CONFIG_RTC_CLASS /** * alarmtimer_suspend - Suspend time callback |