TIMER_SOFTIRQ     657 kernel/time/tick-sched.c 	return local_softirq_pending() & BIT(TIMER_SOFTIRQ);
TIMER_SOFTIRQ    1808 kernel/time/timer.c 	raise_softirq(TIMER_SOFTIRQ);
TIMER_SOFTIRQ    2036 kernel/time/timer.c 	open_softirq(TIMER_SOFTIRQ, run_timer_softirq);