blkmap
blk = blkmap(fs, cg_blksfree(newcg), i);
blk = blkmap(fs, cg_blksfree(cgp), bbase);
blk = blkmap(fs, cg_blksfree(cgp), bbase);
blk = blkmap(fs, cg_blksfree(cgp), bno);
blk = blkmap(fs, cg_blksfree(cgp), bno);