hammer_blocksize
int hammer_blocksize(int64_t file_offset);
blkmask = hammer_blocksize(trunc_off) - 1;
hammer_blocksize(ip->ino_data.size),
blksize = hammer_blocksize(vap->va_size);
hammer_blocksize(ip->ino_data.size),
hammer_blocksize(vap->va_size),
blksize = hammer_blocksize(ap->a_loffset);
if (hammer_blocksize(base_offset) != blksize) {
hammer_blocksize(last_offset - 1) != blksize) {
blksize = hammer_blocksize(bio->bio_offset);
blksize = hammer_blocksize(uio->uio_offset);
blksize = hammer_blocksize(uio->uio_offset);
blksize = hammer_blocksize(uio->uio_offset);
hammer_blocksize(ip->ino_data.size),
hammer_blocksize(nsize),
hammer_blocksize(ip->ino_data.size),