union {
xfs_bmdr_block_t di_bmbt; /* btree root block */
xfs_bmbt_rec_32_t di_bmx[1]; /* extent list */
- xfs_dir_shortform_t di_dirsf; /* shortform directory */
xfs_dir2_sf_t di_dir2sf; /* shortform directory v2 */
char di_c[1]; /* local contents */
xfs_dev_t di_dev; /* device for S_IFCHR/S_IFBLK */