diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index f2baa2c..401113a 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -264,6 +264,8 @@ static inline bool ovl_is_impuredir(struct dentry *dentry)
 
 
 /* namei.c */
+int ovl_check_fh_len(struct ovl_fh *fh, int fh_len);
+struct dentry *ovl_decode_fh(struct ovl_fh *fh, struct vfsmount *mnt);
 int ovl_verify_set_fh(struct dentry *dentry, const char *name,
 		      struct dentry *real, bool is_upper, bool set);
 int ovl_verify_index(struct ovl_fs *ofs, struct dentry *index);