- struct commit_list *parent, *temp;
- struct commit_list *posn = *list_p;
- *list_p = NULL;
- while (posn) {
- parse_commit(posn->item);
- if (posn->item->object.flags & this_mark) {
- /*
- printf("%d already seen %s %x\n",
- this_mark
- sha1_to_hex(posn->parent->sha1),
- posn->parent->flags);
- */
- /* do nothing; this indicates that this side
- * split and reformed, and we only need to
- * mark it once.
- */
- } else if (posn->item->object.flags & other_mark) {
- return posn->item;
- } else {
- /*
- printf("%d based on %s\n",
- this_mark,
- sha1_to_hex(posn->parent->sha1));
- */
- posn->item->object.flags |= this_mark;
-
- parent = posn->item->parents;
- while (parent) {
- temp = malloc(sizeof(struct commit_list));
- temp->next = *list_p;
- temp->item = parent->item;
- *list_p = temp;
- parent = parent->next;
- }
- }
- posn = posn->next;
+ struct commit *item = (*list_p)->item;
+
+ if (item->object.flags & other_mark) {
+ return item;
+ } else {
+ pop_most_recent_commit(list_p, this_mark);