extend vlist code to allow keeping the old data structure instead of the new one...

[project/netifd.git] / utils.c

diff --git a/utils.c b/utils.c
index 42d3176..a67a8c9 100644 (file)
--- a/utils.c
+++ b/utils.c
@@ -37,11 +37,16 @@ vlist_add(struct vlist_tree *tree, struct vlist_node *node)
 
        anode = avl_find(&tree->avl, key);
        if (anode) {
+               if (tree->keep_old)
+                       goto update_only;
+
                old_node = container_of(anode, struct vlist_node, avl);
                avl_delete(&tree->avl, anode);
        }
 
        avl_insert(&tree->avl, &node->avl);
+
+update_only:
        tree->update(tree, node, old_node);
 }