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()
3478     uint64_t refcount_bits;  in qcow2_opt_get_refcount_bits_del()  local
3480     refcount_bits = qemu_opt_get_number_del(opts, BLOCK_OPT_REFCOUNT_BITS, 16);  in qcow2_opt_get_refcount_bits_del()
3481     if (refcount_bits > 64 || !is_power_of_2(refcount_bits)) {  in qcow2_opt_get_refcount_bits_del()
3487     if (version < 3 && refcount_bits != 16) {  in qcow2_opt_get_refcount_bits_del()
3494     return refcount_bits;  in qcow2_opt_get_refcount_bits_del()
3611         qcow2_opts->refcount_bits = 16;  in qcow2_co_create()
3613     if (qcow2_opts->refcount_bits > 64 ||  in qcow2_co_create()
3614         !is_power_of_2(qcow2_opts->refcount_bits))  in qcow2_co_create()
3621     if (version < 3 && qcow2_opts->refcount_bits != 16) {  in qcow2_co_create()
3628     refcount_order = ctz32(qcow2_opts->refcount_bits);  in qcow2_co_create()
5078     uint64_t refcount_bits;  in qcow2_measure()  local
5104     refcount_bits = qcow2_opt_get_refcount_bits_del(opts, version, &local_err);  in qcow2_measure()
5217                                  ctz32(refcount_bits), extended_l2);  in qcow2_measure()
5272             .refcount_bits      = s->refcount_bits,  in qcow2_get_specific_info()
5291             .refcount_bits      = s->refcount_bits,  in qcow2_get_specific_info()
5697     int refcount_bits = s->refcount_bits;  in qcow2_amend_options()  local
5744             refcount_bits = qemu_opt_get_number(opts, BLOCK_OPT_REFCOUNT_BITS,  in qcow2_amend_options()
5745                                                 refcount_bits);  in qcow2_amend_options()
5747             if (refcount_bits <= 0 || refcount_bits > 64 ||  in qcow2_amend_options()
5748                 !is_power_of_2(refcount_bits))  in qcow2_amend_options()
5782                           + (s->refcount_bits != refcount_bits) +  in qcow2_amend_options()
5823     if (s->refcount_bits != refcount_bits) {  in qcow2_amend_options()
5824         int refcount_order = ctz32(refcount_bits);  in qcow2_amend_options()
5826         if (new_version < 3 && refcount_bits != 16) {  in qcow2_amend_options()