S_BLKSIZE
kernelsize = st.st_blocks * S_BLKSIZE;
sb->st_blocks = va.va_bytes / S_BLKSIZE;
vap->va_size = S_BLKSIZE;
vap->va_blocksize = S_BLKSIZE;
vap->va_bytes = S_BLKSIZE;
st->st_blksize = S_BLKSIZE;
st->st_blocks = (st->st_size + S_BLKSIZE - 1) / S_BLKSIZE;
vap->va_bytes = st->st_blocks * S_BLKSIZE;
((off_t)from_sb.st_blocks * S_BLKSIZE < from_sb.st_size));
sz = S_BLKSIZE;
if (sb.st_blocks * S_BLKSIZE > bootsize -
ino_p->di_size = read(fd, p, sb.st_blocks * S_BLKSIZE);