Re: [PATCH v4 13/30] qcow2: Add QCow2SubclusterType and qcow2_get_subcluster_type()

[Alberto Garcia]

On Wed 08 Apr 2020 01:23:42 PM CEST, Max Reitz wrote:
>> +        switch (type) {
>> +        case QCOW2_CLUSTER_COMPRESSED:
>> +            return QCOW2_SUBCLUSTER_COMPRESSED;
>
> Why did you drop the check that l2_bitmap == 0 here?

We don't generally check that reserved bits are 0. It would for example
allow us to add a new compatible feature in the future using those bits.

Berto