int ret = alarm_try_to_cancel(alarm);
if (ret >= 0)
return ret;
- cpu_relax();
+ hrtimer_cancel_wait_running(&alarm->timer);
}
}
EXPORT_SYMBOL_GPL(alarm_cancel);
return alarm_try_to_cancel(&timr->it.alarm.alarmtimer);
}
+/**
+ * alarm_timer_wait_running - Posix timer callback to wait for a timer
+ * @timr: Pointer to the posixtimer data struct
+ *
+ * Called from the core code when timer cancel detected that the callback
+ * is running. @timr is unlocked and rcu read lock is held to prevent it
+ * from being freed.
+ */
+static void alarm_timer_wait_running(struct k_itimer *timr)
+{
+ hrtimer_cancel_wait_running(&timr->it.alarm.alarmtimer.timer);
+}
+
/**
* alarm_timer_arm - Posix timer callback to arm a timer
* @timr: Pointer to the posixtimer data struct
enum alarmtimer_type type;
if (!alarmtimer_get_rtcdev())
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
if (!capable(CAP_WAKE_ALARM))
return -EPERM;
int ret = 0;
if (!alarmtimer_get_rtcdev())
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
if (flags & ~TIMER_ABSTIME)
return -EINVAL;
.timer_forward = alarm_timer_forward,
.timer_remaining = alarm_timer_remaining,
.timer_try_to_cancel = alarm_timer_try_to_cancel,
+ .timer_wait_running = alarm_timer_wait_running,
.nsleep = alarm_timer_nsleep,
};
#endif /* CONFIG_POSIX_TIMERS */