WCHK
WCHK(fs->fs_old_inodefmt, !=, FS_44INODEFMT, %jd);
WCHK(fs->fs_old_rotdelay, !=, 0, %jd);
WCHK(fs->fs_old_rps, !=, 60, %jd);
WCHK(fs->fs_old_nspf, !=, fs->fs_fsize / sectorsize, %jd);
WCHK(fs->fs_old_interleave, !=, 1, %jd);
WCHK(fs->fs_old_trackskew, !=, 0, %jd);
WCHK(fs->fs_old_cpc, !=, 0, %jd);
WCHK(fs->fs_old_postblformat, !=, 1, %jd);
WCHK(fs->fs_old_nsect, !=, fs->fs_old_spc, %jd);
WCHK(fs->fs_old_npsect, !=, fs->fs_old_spc, %jd);
WCHK(fs->fs_dsize, !=, fs->fs_size - fs->fs_sblkno -
WCHK(fs->fs_metaspace, <, 0, %jd);
WCHK(fs->fs_metaspace, >, fs->fs_fpg / 2, %jd);
WCHK(fs->fs_minfree, >, 99, %jd%%);
WCHK(fs->fs_maxfilesize, >, maxfilesize, %jd);
WCHK(fs->fs_maxcontig, <, 0, %jd);
WCHK(fs->fs_maxcontig, >, MAX(256, maxphys / fs->fs_bsize), %jd);