static int proc_task_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
	struct task_struct *task, int tid)
{
	char name[PROC_NUMBUF];
	int len = snprintf(name, sizeof(name), "%d", tid);
	return proc_fill_cache(filp, dirent, filldir, name, len,
				proc_task_instantiate, task, NULL);
}