diff --git a/extent-cache.c b/extent-cache.c
index 38bed8b5..662c801e 100644
--- a/extent-cache.c
+++ b/extent-cache.c
@@ -107,10 +107,9 @@ alloc_cache_extent(u64 objectid, u64 start, u64 size)
 	return pe;
 }
 
-static int __add_cache_extent(struct cache_tree *tree,
-			      u64 objectid, u64 start, u64 size)
+int add_cache_extent(struct cache_tree *tree, u64 start, u64 size)
 {
-	struct cache_extent *pe = alloc_cache_extent(objectid, start, size);
+	struct cache_extent *pe = alloc_cache_extent(0, start, size);
 	int ret;
 
 	if (!pe) {
@@ -125,17 +124,6 @@ static int __add_cache_extent(struct cache_tree *tree,
 	return ret;
 }
 
-int add_cache_extent(struct cache_tree *tree, u64 start, u64 size)
-{
-	return __add_cache_extent(tree, 0, start, size);
-}
-
-int add_cache_extent2(struct cache_tree *tree,
-		      u64 objectid, u64 start, u64 size)
-{
-	return __add_cache_extent(tree, objectid, start, size);
-}
-
 int insert_cache_extent(struct cache_tree *tree, struct cache_extent *pe)
 {
 	return rb_insert(&tree->root, &pe->rb_node, cache_tree_comp_nodes);
diff --git a/extent-cache.h b/extent-cache.h
index 82db7fa3..33d018dd 100644
--- a/extent-cache.h
+++ b/extent-cache.h
@@ -106,8 +106,6 @@ struct cache_extent *search_cache_extent2(struct cache_tree *tree,
  */
 struct cache_extent *lookup_cache_extent2(struct cache_tree *tree,
 					  u64 objectid, u64 start, u64 size);
-int add_cache_extent2(struct cache_tree *tree,
-		      u64 objectid, u64 start, u64 size);
 int insert_cache_extent2(struct cache_tree *tree, struct cache_extent *pe);
 
 /*