Index: src/wp-includes/ms-site.php
===================================================================
--- src/wp-includes/ms-site.php	(revision 44812)
+++ src/wp-includes/ms-site.php	(working copy)
@@ -380,6 +380,10 @@
  * @return array|false Returns false if there is nothing to update. Returns an array of metadata on success.
  */
 function update_sitemeta_cache( $site_ids ) {
+	if ( ! is_site_meta_supported() ) {
+		return false;
+	}
+
 	return update_meta_cache( 'blog', $site_ids );
 }