int tdb1_unlock(struct tdb1_context *tdb, int list, int ltype);
int tdb1_brlock(struct tdb1_context *tdb,
int rw_type, tdb1_off_t offset, size_t len,
int tdb1_unlock(struct tdb1_context *tdb, int list, int ltype);
int tdb1_brlock(struct tdb1_context *tdb,
int rw_type, tdb1_off_t offset, size_t len,