fs_trackskew      233 ufs/ffs/fs.h   	int32_t	 fs_trackskew;		/* sector 0 skew, per track */
fs_trackskew      503 ufs/ffs/fs.h        (fsbtodb(fs, bno) % (fs)->fs_spc / (fs)->fs_nsect * (fs)->fs_trackskew + \