ext4_ext_space_root
curpath->ep_header->eh_max = htole16(ext4_ext_space_root(ip));
ext4_ext_header(ip)->eh_max = htole16(ext4_ext_space_root(ip));
return (ext4_ext_space_root(ip));
ehp->eh_max = htole16(ext4_ext_space_root(ip));