extern void fa_cfsblock(void *obj, int bit, typnm_t next);
extern void fa_dfiloffd(void *obj, int bit, typnm_t next);
extern void fa_dfsbno(void *obj, int bit, typnm_t next);
-extern void fa_dinode_union(void *obj, int bit, typnm_t next);
extern void fa_dirblock(void *obj, int bit, typnm_t next);
extern void fa_drfsbno(void *obj, int bit, typnm_t next);
extern void fa_drtbno(void *obj, int bit, typnm_t next);