- if (rc != 0) {
- rc = ldlm_handle_ast_error(lock, req, rc,
- arg->type == LDLM_BL_CALLBACK
- ? "blocking" : "completion");
- if (rc == -ERESTART)
- cfs_atomic_inc(&arg->restart);
- }
+
+ switch (arg->type) {
+ case LDLM_GL_CALLBACK:
+ /* Update the LVB from disk if the AST failed
+ * (this is a legal race)
+ *
+ * - Glimpse callback of local lock just returns
+ * -ELDLM_NO_LOCK_DATA.
+ * - Glimpse callback of remote lock might return
+ * -ELDLM_NO_LOCK_DATA when inode is cleared. LU-274
+ */
+ if (rc == -ELDLM_NO_LOCK_DATA) {
+ LDLM_DEBUG(lock, "lost race - client has a lock but no "
+ "inode");
+ ldlm_res_lvbo_update(lock->l_resource, NULL, 1);
+ } else if (rc != 0) {
+ rc = ldlm_handle_ast_error(lock, req, rc, "glimpse");
+ } else {
+ rc = ldlm_res_lvbo_update(lock->l_resource, req, 1);
+ }
+ break;
+ case LDLM_BL_CALLBACK:
+ if (rc != 0)
+ rc = ldlm_handle_ast_error(lock, req, rc, "blocking");
+ break;
+ case LDLM_CP_CALLBACK:
+ if (rc != 0)
+ rc = ldlm_handle_ast_error(lock, req, rc, "completion");
+ break;
+ default:
+ LDLM_ERROR(lock, "invalid opcode for lock callback %d",
+ arg->type);
+ LBUG();
+ }
+
+ /* release extra reference taken in ldlm_ast_fini() */