+static int osc_object_ast_clear(struct ldlm_lock *lock, void *data)
+{
+ ENTRY;
+
+ if (lock->l_ast_data == data)
+ lock->l_ast_data = NULL;
+ RETURN(LDLM_ITER_CONTINUE);
+}
+
+static int osc_object_prune(const struct lu_env *env, struct cl_object *obj)
+{
+ struct osc_object *osc = cl2osc(obj);
+ struct ldlm_res_id *resname = &osc_env_info(env)->oti_resname;
+
+ LASSERTF(osc->oo_npages == 0,
+ DFID "still have %lu pages, obj: %p, osc: %p\n",
+ PFID(lu_object_fid(&obj->co_lu)), osc->oo_npages, obj, osc);
+
+ /* DLM locks don't hold a reference of osc_object so we have to
+ * clear it before the object is being destroyed. */
+ ostid_build_res_name(&osc->oo_oinfo->loi_oi, resname);
+ ldlm_resource_iterate(osc_export(osc)->exp_obd->obd_namespace, resname,
+ osc_object_ast_clear, osc);
+ return 0;
+}
+/**
+ * Find any ldlm lock covers the osc object.
+ * \retval 0 not found
+ * \retval 1 find one
+ * \retval < 0 error
+ */
+static int osc_object_find_cbdata(const struct lu_env *env,
+ struct cl_object *obj, ldlm_iterator_t iter,
+ void *data)
+{
+ struct ldlm_res_id res_id;
+ struct obd_device *obd;
+ int rc = 0;
+
+ ostid_build_res_name(&cl2osc(obj)->oo_oinfo->loi_oi, &res_id);
+ obd = obj->co_lu.lo_dev->ld_obd;
+ rc = ldlm_resource_iterate(obd->obd_namespace, &res_id, iter, data);
+ if (rc == LDLM_ITER_STOP)
+ return 1;
+
+ if (rc == LDLM_ITER_CONTINUE)
+ return 0;
+
+ return rc;
+}