On 17.03.20 19:16, Alberto Garcia wrote:
> This patch adds the following new fields to BDRVQcow2State:
> 
> - subclusters_per_cluster: Number of subclusters in a cluster
> - subcluster_size: The size of each subcluster, in bytes
> - subcluster_bits: No. of bits so 1 << subcluster_bits = subcluster_size
> 
> Images without subclusters are treated as if they had exactly one,
> with subcluster_size = cluster_size.
> 
> Signed-off-by: Alberto Garcia <berto@igalia.com>
> ---
>  block/qcow2.h | 5 +++++
>  block/qcow2.c | 5 +++++
>  2 files changed, 10 insertions(+)

Reviewed-by: Max Reitz <mreitz@redhat.com>