Re: [PATCH v5 29/31] qcow2: Assert that expand_zero_clusters_in_l1() does not support subclusters

[Eric Blake]

On 5/5/20 12:38 PM, Alberto Garcia wrote:
> This function is only used by qcow2_expand_zero_clusters() to
> downgrade a qcow2 image to a previous version. It is however not
> possible to downgrade an image with extended L2 entries because older
> versions of qcow2 do not have this feature.
>
> Signed-off-by: Alberto Garcia <address@hidden>
> ---
>   block/qcow2-cluster.c      | 8 +++++++-
>   tests/qemu-iotests/061     | 6 ++++++
>   tests/qemu-iotests/061.out | 5 +++++
>   3 files changed, 18 insertions(+), 1 deletion(-)

Reviewed-by: Eric Blake <address@hidden>

--
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
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