bcachefs: Improve tracepoints slightly in commit path

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

fs/bcachefs/btree_update_leaf.c

@@ -706,10 +706,18 @@ int __bch2_trans_commit(struct btree_trans *trans)
 		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;