53 struct kthread {  struct
74 static inline struct kthread *to_kthread(struct task_struct *k)  in to_kthread()  argument
91 static inline struct kthread *__to_kthread(struct task_struct *p)  in __to_kthread()
93 	void *kthread = p->worker_private;  in __to_kthread()  local
94 	if (kthread && !(p->flags & PF_KTHREAD))  in __to_kthread()
95 		kthread = NULL;  in __to_kthread()
96 	return kthread;  in __to_kthread()
101 	struct kthread *kthread = to_kthread(tsk);  in get_kthread_comm()  local
103 	if (!kthread || !kthread->full_name) {  in get_kthread_comm()
108 	strscpy_pad(buf, kthread->full_name, buf_size);  in get_kthread_comm()
113 	struct kthread *kthread;  in set_kthread_struct()  local
118 	kthread = kzalloc(sizeof(*kthread), GFP_KERNEL);  in set_kthread_struct()
119 	if (!kthread)  in set_kthread_struct()
122 	init_completion(&kthread->exited);  in set_kthread_struct()
123 	init_completion(&kthread->parked);  in set_kthread_struct()
124 	p->vfork_done = &kthread->exited;  in set_kthread_struct()
126 	p->worker_private = kthread;  in set_kthread_struct()
132 	struct kthread *kthread;  in free_kthread_struct()  local
137 	kthread = to_kthread(k);  in free_kthread_struct()
138 	if (!kthread)  in free_kthread_struct()
142 	WARN_ON_ONCE(kthread->blkcg_css);  in free_kthread_struct()
145 	kfree(kthread->full_name);  in free_kthread_struct()
146 	kfree(kthread);  in free_kthread_struct()
186 	struct kthread *kthread = __to_kthread(current);  in kthread_should_stop_or_park()  local
188 	if (!kthread)  in kthread_should_stop_or_park()
191 	return kthread->flags & (BIT(KTHREAD_SHOULD_STOP) | BIT(KTHREAD_SHOULD_PARK));  in kthread_should_stop_or_park()
227 	struct kthread *kthread = __to_kthread(task);  in kthread_func()  local
228 	if (kthread)  in kthread_func()
229 		return kthread->threadfn;  in kthread_func()
259 	struct kthread *kthread = __to_kthread(task);  in kthread_probe_data()  local
262 	if (kthread)  in kthread_probe_data()
263 		copy_from_kernel_nofault(&data, &kthread->data, sizeof(data));  in kthread_probe_data()
267 static void __kthread_parkme(struct kthread *self)  in __kthread_parkme()
314 	struct kthread *kthread = to_kthread(current);  in kthread_exit()  local
315 	kthread->result = result;  in kthread_exit()
340 static int kthread(void *_create)  in kthread()  function
348 	struct kthread *self;  in kthread()
411 	pid = kernel_thread(kthread, create, create->full_name,  in create_kthread()
589 	struct kthread *kthread = to_kthread(k);  in kthread_set_per_cpu()  local
590 	if (!kthread)  in kthread_set_per_cpu()
596 		clear_bit(KTHREAD_IS_PER_CPU, &kthread->flags);  in kthread_set_per_cpu()
600 	kthread->cpu = cpu;  in kthread_set_per_cpu()
601 	set_bit(KTHREAD_IS_PER_CPU, &kthread->flags);  in kthread_set_per_cpu()
606 	struct kthread *kthread = __to_kthread(p);  in kthread_is_per_cpu()  local
607 	if (!kthread)  in kthread_is_per_cpu()
610 	return test_bit(KTHREAD_IS_PER_CPU, &kthread->flags);  in kthread_is_per_cpu()
623 	struct kthread *kthread = to_kthread(k);  in kthread_unpark()  local
625 	if (!test_bit(KTHREAD_SHOULD_PARK, &kthread->flags))  in kthread_unpark()
631 	if (test_bit(KTHREAD_IS_PER_CPU, &kthread->flags))  in kthread_unpark()
632 		__kthread_bind(k, kthread->cpu, TASK_PARKED);  in kthread_unpark()
634 	clear_bit(KTHREAD_SHOULD_PARK, &kthread->flags);  in kthread_unpark()
656 	struct kthread *kthread = to_kthread(k);  in kthread_park()  local
661 	if (WARN_ON_ONCE(test_bit(KTHREAD_SHOULD_PARK, &kthread->flags)))  in kthread_park()
664 	set_bit(KTHREAD_SHOULD_PARK, &kthread->flags);  in kthread_park()
671 		wait_for_completion(&kthread->parked);  in kthread_park()
700 	struct kthread *kthread;  in kthread_stop()  local
706 	kthread = to_kthread(k);  in kthread_stop()
707 	set_bit(KTHREAD_SHOULD_STOP, &kthread->flags);  in kthread_stop()
711 	wait_for_completion(&kthread->exited);  in kthread_stop()
712 	ret = kthread->result;  in kthread_stop()
1527 	struct kthread *kthread;  in kthread_associate_blkcg()  local
1531 	kthread = to_kthread(current);  in kthread_associate_blkcg()
1532 	if (!kthread)  in kthread_associate_blkcg()
1535 	if (kthread->blkcg_css) {  in kthread_associate_blkcg()
1536 		css_put(kthread->blkcg_css);  in kthread_associate_blkcg()
1537 		kthread->blkcg_css = NULL;  in kthread_associate_blkcg()
1541 		kthread->blkcg_css = css;  in kthread_associate_blkcg()
1553 	struct kthread *kthread;  in kthread_blkcg()  local
1556 		kthread = to_kthread(current);  in kthread_blkcg()
1557 		if (kthread)  in kthread_blkcg()
1558 			return kthread->blkcg_css;  in kthread_blkcg()