blk_free
blk_free(ino, nblk, 0, fs->fs_frag);
blk_free(ino, bn, 0, numfrags(fs, blksize));
blk_free(ino, bn, 0, fs->fs_frag);
blk_free(ino, bn, 0, frags);
blk_free(brec->jb_ino, blk, mask, frags);
blk_free(ino, blk, blk_freemask(blk, ino, lbn, frags), frags);
blk_free(ino, blk, mask, frags);