ufs_blkroundup
preallocoff = round_page(ufs_blkroundup(fs, MAX(osize, uio->uio_offset)));
ufs_blkroundup(fs, osize) != osize) {
eob = ufs_blkroundup(fs, osize);
round_page(ufs_blkroundup(fs, uio->uio_offset)),