+static void free_extent_buffer_final(struct extent_buffer *eb)
+{
+ struct extent_io_tree *tree = eb->tree;
+
+ BUG_ON(eb->refs);
+ BUG_ON(tree && tree->cache_size < eb->len);
+ list_del_init(&eb->lru);
+ if (!(eb->flags & EXTENT_BUFFER_DUMMY)) {
+ remove_cache_extent(&tree->cache, &eb->cache_node);
+ tree->cache_size -= eb->len;
+ }
+ free(eb);
+}
+
+static void free_extent_buffer_internal(struct extent_buffer *eb, bool free_now)