chfs_blkoff
: (chfs_fragroundup(chmp, chfs_blkoff(chmp, (ip)->size))))
blkoffset = chfs_blkoff(chmp, uio->uio_offset);
endallocoff = nsize - chfs_blkoff(chmp, nsize);
blkoffset = chfs_blkoff(chmp, uio->uio_offset);
chfs_blkoff(chmp, uio->uio_offset) == 0 &&
len -= chfs_blkoff(chmp, len);