1493     s->refcount_bits = 1 << s->refcount_order;  in qcow2_do_open()
1494     s->refcount_max = UINT64_C(1) << (s->refcount_bits - 1);  in qcow2_do_open()
3482     uint64_t refcount_bits;  in qcow2_opt_get_refcount_bits_del()  local
3484     refcount_bits = qemu_opt_get_number_del(opts, BLOCK_OPT_REFCOUNT_BITS, 16);  in qcow2_opt_get_refcount_bits_del()
3485     if (refcount_bits > 64 || !is_power_of_2(refcount_bits)) {  in qcow2_opt_get_refcount_bits_del()
3491     if (version < 3 && refcount_bits != 16) {  in qcow2_opt_get_refcount_bits_del()
3498     return refcount_bits;  in qcow2_opt_get_refcount_bits_del()
3615         qcow2_opts->refcount_bits = 16;  in qcow2_co_create()
3617     if (qcow2_opts->refcount_bits > 64 ||  in qcow2_co_create()
3618         !is_power_of_2(qcow2_opts->refcount_bits))  in qcow2_co_create()
3625     if (version < 3 && qcow2_opts->refcount_bits != 16) {  in qcow2_co_create()
3632     refcount_order = ctz32(qcow2_opts->refcount_bits);  in qcow2_co_create()
5082     uint64_t refcount_bits;  in qcow2_measure()  local
5108     refcount_bits = qcow2_opt_get_refcount_bits_del(opts, version, &local_err);  in qcow2_measure()
5221                                  ctz32(refcount_bits), extended_l2);  in qcow2_measure()
5276             .refcount_bits      = s->refcount_bits,  in qcow2_get_specific_info()
5295             .refcount_bits      = s->refcount_bits,  in qcow2_get_specific_info()
5701     int refcount_bits = s->refcount_bits;  in qcow2_amend_options()  local
5748             refcount_bits = qemu_opt_get_number(opts, BLOCK_OPT_REFCOUNT_BITS,  in qcow2_amend_options()
5749                                                 refcount_bits);  in qcow2_amend_options()
5751             if (refcount_bits <= 0 || refcount_bits > 64 ||  in qcow2_amend_options()
5752                 !is_power_of_2(refcount_bits))  in qcow2_amend_options()
5786                           + (s->refcount_bits != refcount_bits) +  in qcow2_amend_options()
5827     if (s->refcount_bits != refcount_bits) {  in qcow2_amend_options()
5828         int refcount_order = ctz32(refcount_bits);  in qcow2_amend_options()
5830         if (new_version < 3 && refcount_bits != 16) {  in qcow2_amend_options()