diff --git a/include/linux/damon.h b/include/linux/damon.h
index 7f76e2e99f37..52559475dbe7 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -502,6 +502,9 @@ struct damos {
 	 * layer-handled filters.  If true, operations layer allows it, too.
 	 */
 	bool core_filters_allowed;
+	/* whether to reject core/ops filters umatched regions */
+	bool core_filters_default_reject;
+	bool ops_filters_default_reject;
 /* public: */
 	struct damos_quota quota;
 	struct damos_watermarks wmarks;