- SBLOCK, fsbtodb(&sblock, sblock.fs_fpg),
- SBLOCK + fsbtodb(&sblock, sblock.fs_fpg),
- SBLOCK + fsbtodb(&sblock, (sblock.fs_ncg - 1) *
- sblock.fs_fpg));
+ SBLOCK, fsbtodb(&sblock, cgsblock(1, &sblock)) - SBLOCK,
+ fsbtodb(&sblock, cgsblock(1, &sblock)),
+ fsbtodb(&sblock, cgsblock(sblock.fs_ncg - 1, &sblock)));