Archipelago » qemu

    BDRVQcowState *s = bs->opaque;

    int new_l1_size, new_l1_size2, ret, i;

    uint64_t *new_l1_table;

    uint8_t data[12];

    new_l1_size = s->l1_size;

    /* write new table (align to cluster) */

    new_l1_table_offset = qcow2_alloc_clusters(bs, new_l1_size2);

    for(i = 0; i < s->l1_size; i++)

        new_l1_table[i] = cpu_to_be64(new_l1_table[i]);

    /* allocate a new l2 entry */

    l2_offset = qcow2_alloc_clusters(bs, s->l2_size * sizeof(uint64_t));

    /* update the L1 entry */

        qcow2_free_any_clusters(bs, cluster_offset, 1);

    cluster_offset = qcow2_alloc_bytes(bs, compressed_size);

    nb_csectors = ((cluster_offset + compressed_size - 1) >> 9) -

                  (cluster_offset >> 9);

{

    BDRVQcowState *s = bs->opaque;

    int l2_index, ret;

    unsigned int nb_clusters, i = 0;

    QCowL2Meta *old_alloc;

    /* allocate a new cluster */

    cluster_offset = qcow2_alloc_clusters(bs, nb_clusters * s->cluster_size);

    /* save info needed for meta data update */

    m->offset = offset;