*/
struct ocfs2_extent_tree_operations;
struct ocfs2_extent_tree {
- struct ocfs2_extent_tree_operations *et_ops;
+ const struct ocfs2_extent_tree_operations *et_ops;
struct buffer_head *et_root_bh;
struct ocfs2_extent_list *et_root_el;
struct ocfs2_caching_info *et_ci;