46 struct kthread {  struct
63 static inline void set_kthread_struct(void *kthread)  in set_kthread_struct()  argument
70 	current->set_child_tid = (__force void __user *)kthread;  in set_kthread_struct()
73 static inline struct kthread *to_kthread(struct task_struct *k)  in to_kthread()
81 	struct kthread *kthread;  in free_kthread_struct()  local
87 	kthread = to_kthread(k);  in free_kthread_struct()
89 	WARN_ON_ONCE(kthread && kthread->blkcg_css);  in free_kthread_struct()
91 	kfree(kthread);  in free_kthread_struct()
179 	struct kthread *kthread = to_kthread(task);  in kthread_probe_data()  local
182 	probe_kernel_read(&data, &kthread->data, sizeof(data));  in kthread_probe_data()
186 static void __kthread_parkme(struct kthread *self)  in __kthread_parkme()
214 static int kthread(void *_create)  in kthread()  function
221 	struct kthread *self;  in kthread()
278 	pid = kernel_thread(kthread, create, CLONE_FS | CLONE_FILES | SIGCHLD);  in create_kthread()
474 	struct kthread *kthread = to_kthread(k);  in kthread_unpark()  local
480 	if (test_bit(KTHREAD_IS_PER_CPU, &kthread->flags))  in kthread_unpark()
481 		__kthread_bind(k, kthread->cpu, TASK_PARKED);  in kthread_unpark()
483 	clear_bit(KTHREAD_SHOULD_PARK, &kthread->flags);  in kthread_unpark()
505 	struct kthread *kthread = to_kthread(k);  in kthread_park()  local
510 	if (WARN_ON_ONCE(test_bit(KTHREAD_SHOULD_PARK, &kthread->flags)))  in kthread_park()
513 	set_bit(KTHREAD_SHOULD_PARK, &kthread->flags);  in kthread_park()
520 		wait_for_completion(&kthread->parked);  in kthread_park()
549 	struct kthread *kthread;  in kthread_stop()  local
555 	kthread = to_kthread(k);  in kthread_stop()
556 	set_bit(KTHREAD_SHOULD_STOP, &kthread->flags);  in kthread_stop()
559 	wait_for_completion(&kthread->exited);  in kthread_stop()
1206 	struct kthread *kthread;  in kthread_associate_blkcg()  local
1210 	kthread = to_kthread(current);  in kthread_associate_blkcg()
1211 	if (!kthread)  in kthread_associate_blkcg()
1214 	if (kthread->blkcg_css) {  in kthread_associate_blkcg()
1215 		css_put(kthread->blkcg_css);  in kthread_associate_blkcg()
1216 		kthread->blkcg_css = NULL;  in kthread_associate_blkcg()
1220 		kthread->blkcg_css = css;  in kthread_associate_blkcg()
1232 	struct kthread *kthread;  in kthread_blkcg()  local
1235 		kthread = to_kthread(current);  in kthread_blkcg()
1236 		if (kthread)  in kthread_blkcg()
1237 			return kthread->blkcg_css;  in kthread_blkcg()