163 	enum pid_type type;  in alloc_pid()  local
215 	for (type = 0; type < PIDTYPE_MAX; ++type)  in alloc_pid()
216 		INIT_HLIST_HEAD(&pid->tasks[type]);  in alloc_pid()
273 static struct pid **task_pid_ptr(struct task_struct *task, enum pid_type type)  in task_pid_ptr()  argument
275 	return (type == PIDTYPE_PID) ?  in task_pid_ptr()
277 		&task->signal->pids[type];  in task_pid_ptr()
283 void attach_pid(struct task_struct *task, enum pid_type type)  in attach_pid()  argument
285 	struct pid *pid = *task_pid_ptr(task, type);  in attach_pid()
286 	hlist_add_head_rcu(&task->pid_links[type], &pid->tasks[type]);  in attach_pid()
289 static void __change_pid(struct task_struct *task, enum pid_type type,  in __change_pid()  argument
292 	struct pid **pid_ptr = task_pid_ptr(task, type);  in __change_pid()
298 	hlist_del_rcu(&task->pid_links[type]);  in __change_pid()
308 void detach_pid(struct task_struct *task, enum pid_type type)  in detach_pid()  argument
310 	__change_pid(task, type, NULL);  in detach_pid()
313 void change_pid(struct task_struct *task, enum pid_type type,  in change_pid()  argument
316 	__change_pid(task, type, pid);  in change_pid()
317 	attach_pid(task, type);  in change_pid()
322 			   enum pid_type type)  in transfer_pid()  argument
324 	if (type == PIDTYPE_PID)  in transfer_pid()
326 	hlist_replace_rcu(&old->pid_links[type], &new->pid_links[type]);  in transfer_pid()
329 struct task_struct *pid_task(struct pid *pid, enum pid_type type)  in pid_task()  argument
334 		first = rcu_dereference_check(hlist_first_rcu(&pid->tasks[type]),  in pid_task()
337 			result = hlist_entry(first, struct task_struct, pid_links[(type)]);  in pid_task()
371 struct pid *get_task_pid(struct task_struct *task, enum pid_type type)  in get_task_pid()  argument
375 	pid = get_pid(rcu_dereference(*task_pid_ptr(task, type)));  in get_task_pid()
381 struct task_struct *get_pid_task(struct pid *pid, enum pid_type type)  in get_pid_task()  argument
385 	result = pid_task(pid, type);  in get_pid_task()
425 pid_t __task_pid_nr_ns(struct task_struct *task, enum pid_type type,  in __task_pid_nr_ns()  argument
434 		nr = pid_nr_ns(rcu_dereference(*task_pid_ptr(task, type)), ns);  in __task_pid_nr_ns()