indir_trunc
indir_trunc(ino, nlbn, nblk, lastlbn, dp);
indir_trunc(ino, -lbn - i, bn, lastlbn, dp);
indir_trunc(freework, fsbtodb(fs, freework->fw_blkno),
static void indir_trunc(struct freework *, ufs2_daddr_t, ufs_lbn_t);
indir_trunc(nfreework, fsbtodb(fs, nb), nlbn);