194 static u64 cpu_clock_sample(const clockid_t clkid, struct task_struct *p)  in cpu_clock_sample()  argument
199 		return task_sched_runtime(p);  in cpu_clock_sample()
201 	task_cputime(p, &utime, &stime);  in cpu_clock_sample()
221 static void task_sample_cputime(struct task_struct *p, u64 *samples)  in task_sample_cputime()  argument
225 	task_cputime(p, &utime, &stime);  in task_sample_cputime()
226 	store_samples(samples, stime, utime, p->se.sum_exec_runtime);  in task_sample_cputime()
340 static u64 cpu_clock_sample_group(const clockid_t clkid, struct task_struct *p,  in cpu_clock_sample_group()  argument
343 	struct thread_group_cputimer *cputimer = &p->signal->cputimer;  in cpu_clock_sample_group()
344 	struct posix_cputimers *pct = &p->signal->posix_cputimers;  in cpu_clock_sample_group()
349 			thread_group_start_cputime(p, samples);  in cpu_clock_sample_group()
351 			__thread_group_cputime(p, samples);  in cpu_clock_sample_group()
452 static void disarm_timer(struct k_itimer *timer, struct task_struct *p)  in disarm_timer()  argument
460 	base = timer_base(timer, p);  in disarm_timer()
462 		trigger_base_recalc_expires(timer, p);  in disarm_timer()
476 	struct task_struct *p;  in posix_cpu_timer_del()  local
481 	p = cpu_timer_task_rcu(timer);  in posix_cpu_timer_del()
482 	if (!p)  in posix_cpu_timer_del()
489 	sighand = lock_task_sighand(p, &flags);  in posix_cpu_timer_del()
500 			disarm_timer(timer, p);  in posix_cpu_timer_del()
502 		unlock_task_sighand(p, &flags);  in posix_cpu_timer_del()
557 static void arm_timer(struct k_itimer *timer, struct task_struct *p)  in arm_timer()  argument
559 	struct posix_cputimer_base *base = timer_base(timer, p);  in arm_timer()
576 		tick_dep_set_task(p, TICK_DEP_BIT_POSIX_TIMER);  in arm_timer()
578 		tick_dep_set_signal(p, TICK_DEP_BIT_POSIX_TIMER);  in arm_timer()
631 	struct task_struct *p;  in posix_cpu_timer_set()  local
636 	p = cpu_timer_task_rcu(timer);  in posix_cpu_timer_set()
637 	if (!p) {  in posix_cpu_timer_set()
656 	sighand = lock_task_sighand(p, &flags);  in posix_cpu_timer_set()
688 		val = cpu_clock_sample(clkid, p);  in posix_cpu_timer_set()
690 		val = cpu_clock_sample_group(clkid, p, true);  in posix_cpu_timer_set()
723 		unlock_task_sighand(p, &flags);  in posix_cpu_timer_set()
738 		arm_timer(timer, p);  in posix_cpu_timer_set()
741 	unlock_task_sighand(p, &flags);  in posix_cpu_timer_set()
772 		sighand = lock_task_sighand(p, &flags);  in posix_cpu_timer_set()
777 			trigger_base_recalc_expires(timer, p);  in posix_cpu_timer_set()
779 		unlock_task_sighand(p, &flags);  in posix_cpu_timer_set()
794 	struct task_struct *p;  in posix_cpu_timer_get()  local
797 	p = cpu_timer_task_rcu(timer);  in posix_cpu_timer_get()
798 	if (!p)  in posix_cpu_timer_get()
813 		now = cpu_clock_sample(clkid, p);  in posix_cpu_timer_get()
815 		now = cpu_clock_sample_group(clkid, p, false);  in posix_cpu_timer_get()
1051 	struct task_struct *p;  in posix_cpu_timer_rearm()  local
1057 	p = cpu_timer_task_rcu(timer);  in posix_cpu_timer_rearm()
1058 	if (!p)  in posix_cpu_timer_rearm()
1062 	sighand = lock_task_sighand(p, &flags);  in posix_cpu_timer_rearm()
1070 		now = cpu_clock_sample(clkid, p);  in posix_cpu_timer_rearm()
1072 		now = cpu_clock_sample_group(clkid, p, true);  in posix_cpu_timer_rearm()
1079 	arm_timer(timer, p);  in posix_cpu_timer_rearm()
1080 	unlock_task_sighand(p, &flags);  in posix_cpu_timer_rearm()
1215 void clear_posix_cputimers_work(struct task_struct *p)  in clear_posix_cputimers_work()  argument
1221 	memset(&p->posix_cputimers_work.work, 0,  in clear_posix_cputimers_work()
1222 	       sizeof(p->posix_cputimers_work.work));  in clear_posix_cputimers_work()
1223 	init_task_work(&p->posix_cputimers_work.work,  in clear_posix_cputimers_work()
1225 	mutex_init(&p->posix_cputimers_work.mutex);  in clear_posix_cputimers_work()
1226 	p->posix_cputimers_work.scheduled = false;  in clear_posix_cputimers_work()