rt_X 156 lib/locking-selftest.c static struct lock_class_key rt_X, rt_Y, rt_Z; rt_X 158 lib/locking-selftest.c __rt_mutex_init(&rtmutex_X1, __func__, &rt_X); rt_X 159 lib/locking-selftest.c __rt_mutex_init(&rtmutex_X2, __func__, &rt_X);