21 DEFINE_PER_CPU(struct irqtime, cpu_irqtime);
36 static void irqtime_account_delta(struct irqtime *irqtime, u64 delta,  in irqtime_account_delta()  argument
41 	u64_stats_update_begin(&irqtime->sync);  in irqtime_account_delta()
43 	irqtime->total += delta;  in irqtime_account_delta()
44 	irqtime->tick_delta += delta;  in irqtime_account_delta()
45 	u64_stats_update_end(&irqtime->sync);  in irqtime_account_delta()
54 	struct irqtime *irqtime = this_cpu_ptr(&cpu_irqtime);  in irqtime_account_irq()  local
64 	delta = sched_clock_cpu(cpu) - irqtime->irq_start_time;  in irqtime_account_irq()
65 	irqtime->irq_start_time += delta;  in irqtime_account_irq()
75 		irqtime_account_delta(irqtime, delta, CPUTIME_IRQ);  in irqtime_account_irq()
78 		irqtime_account_delta(irqtime, delta, CPUTIME_SOFTIRQ);  in irqtime_account_irq()
87 	struct irqtime *irqtime = this_cpu_ptr(&cpu_irqtime);  in irqtime_tick_accounted()  local
90 	delta = min(irqtime->tick_delta, maxtime);  in irqtime_tick_accounted()
91 	irqtime->tick_delta -= delta;  in irqtime_tick_accounted()