273 static struct pid **task_pid_ptr(struct task_struct *task, enum pid_type type)  in task_pid_ptr()  argument
276 		&task->thread_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()
360 	struct task_struct *task;  in find_get_task_by_vpid()  local
363 	task = find_task_by_vpid(nr);  in find_get_task_by_vpid()
364 	if (task)  in find_get_task_by_vpid()
365 		get_task_struct(task);  in find_get_task_by_vpid()
368 	return task;  in find_get_task_by_vpid()
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()
425 pid_t __task_pid_nr_ns(struct task_struct *task, enum pid_type type,  in __task_pid_nr_ns()  argument
433 	if (likely(pid_alive(task)))  in __task_pid_nr_ns()
434 		nr = pid_nr_ns(rcu_dereference(*task_pid_ptr(task, type)), ns);  in __task_pid_nr_ns()