ui_spare          638 fs/ufs/ufs_fs.h 			__fs32	ui_spare[2];	/* 0x78 reserved */
ui_spare          644 fs/ufs/ufs_fs.h 			__fs16	ui_spare;	/* 0x7A unused */
ui_spare          679 fs/ufs/ufs_fs.h 	__fs64     ui_spare[3];    /* 232: Reserved; currently unused */