int mdc_null_inode(struct obd_export *exp, const struct lu_fid *fid);
-int mdc_find_cbdata(struct obd_export *exp, const struct lu_fid *fid,
- ldlm_iterator_t it, void *data);
-
int mdc_intent_lock(struct obd_export *exp,
struct md_op_data *op_data,
struct lookup_intent *it,