- lock_res_and_lock(dlmlock);
- if (dlmlock->l_ast_data != NULL) {
- obj = osc2cl(dlmlock->l_ast_data);
- cl_object_get(obj);
+ matchdata.lmd_mode = &mode;
+ matchdata.lmd_policy = &policy;
+ matchdata.lmd_flags = LDLM_FL_TEST_LOCK | LDLM_FL_CBPENDING;
+ matchdata.lmd_match = LDLM_MATCH_UNREF | LDLM_MATCH_AST_ANY;
+
+ LDLM_LOCK_GET(dlmlock);
+
+ /* If any dlmlock has l_ast_data set, we must find it or we risk
+ * missing a size update done under a different lock.
+ */
+ while (dlmlock) {
+ lock_res_and_lock(dlmlock);
+ if (dlmlock->l_ast_data) {
+ obj = osc2cl(dlmlock->l_ast_data);
+ cl_object_get(obj);
+ }
+ unlock_res_and_lock(dlmlock);
+ LDLM_LOCK_RELEASE(dlmlock);
+
+ dlmlock = NULL;
+
+ if (obj == NULL && res->lr_type == LDLM_EXTENT) {
+ if (CFS_FAIL_CHECK(OBD_FAIL_OSC_NO_SIZE_DATA))
+ break;
+
+ lock_res(res);
+ dlmlock = search_itree(res, &matchdata);
+ unlock_res(res);
+ }