iblock
ret = iblock(idesc, n, remsize);
n = iblock(idesc, ilevel, isize);
static int iblock(struct inodesc *, long, u_int64_t);
ret = iblock(idesc, i + 1, remsize);
n = iblock(idesc, ilevel, isize);
static int iblock(struct inodesc *, long, u_int64_t);
ret = iblock(idesc, n, remsize);
n = iblock(idesc, ilevel, isize);
static int iblock(struct inodesc *, long, u_int64_t);