mach_daddr_t
* sizeof (mach_daddr_t))
mach_daddr_t Mb_db[FFS_NDADDR]; /* 40: disk block addresses */
mach_daddr_t Mb_ib[FFS_NIADDR]; /* 88: indirect blocks */
mach_daddr_t fs_sblkno; /* addr of super-block in filesys */
mach_daddr_t fs_cblkno; /* offset of cyl-block in filesys */
mach_daddr_t fs_iblkno; /* offset of inode-blocks in filesys */
mach_daddr_t fs_dblkno; /* offset of first data after cg */
mach_daddr_t fs_csaddr; /* blk addr of cyl grp summary area */
#define cgbase(fs, c) ((mach_daddr_t)((fs)->fs_fpg * (c)))
((mach_daddr_t)(cgimin(fs, itog(fs, x)) + \
#define BBLOCK ((mach_daddr_t)(0))
#define SBLOCK ((mach_daddr_t)(BBLOCK + BBSIZE / DEV_BSIZE))