FLK_INITIAL_STATE
case FLK_INITIAL_STATE:
lock_request->l_status = FLK_INITIAL_STATE;
case FLK_INITIAL_STATE:
lock_request->l_status = FLK_INITIAL_STATE;
l->l_status = FLK_INITIAL_STATE;
#define IS_INITIAL(lock) ((lock)->l_status == FLK_INITIAL_STATE)