trans_trigger_run = false;
 
                trans_for_each_update(trans, i) {
-                       /* we know trans->nounlock won't be set here: */
-                       if (unlikely(!(i->iter->locks_want < 1
-                                      ? __bch2_btree_iter_upgrade(i->iter, 1)
-                                      : i->iter->uptodate <= BTREE_ITER_NEED_PEEK))) {
+                       if (unlikely(i->iter->uptodate > BTREE_ITER_NEED_PEEK)) {
+                               trace_trans_restart_traverse(trans->ip);
+                               ret = -EINTR;
+                               goto out;
+                       }
+
+                       /*
+                        * We're not using bch2_btree_iter_upgrade here because
+                        * we know trans->nounlock can't be set:
+                        */
+                       if (unlikely(i->iter->locks_want < 1 &&
+                                    !__bch2_btree_iter_upgrade(i->iter, 1))) {
                                trace_trans_restart_upgrade(trans->ip);
                                ret = -EINTR;
                                goto out;