diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 268636a..cf840146 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2415,6 +2415,10 @@
 extern const struct inode_operations ext4_dir_inode_operations;
 extern const struct inode_operations ext4_special_inode_operations;
 extern struct dentry *ext4_get_parent(struct dentry *child);
+extern struct ext4_dir_entry_2 *ext4_init_dot_dotdot(struct inode *inode,
+				 struct ext4_dir_entry_2 *de,
+				 int blocksize, int csum_size,
+				 unsigned int parent_ino, int dotdot_real_len);
 
 /* symlink.c */
 extern const struct inode_operations ext4_symlink_inode_operations;