On 2018-01-26 16:00, Alberto Garcia wrote:
> expand_zero_clusters_in_l1() is used when downgrading qcow2 images
> from v3 to v2 (compat=0.10). This is one of the functions that needed
> more changes to support L2 slices, so this patch extends iotest 061 to
> test downgrading a qcow2 image using a smaller slice size.
> 
> Signed-off-by: Alberto Garcia <berto@igalia.com>
> ---
>  tests/qemu-iotests/061     | 16 ++++++++++++
>  tests/qemu-iotests/061.out | 61 ++++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 77 insertions(+)

Well, it would be better if we could just specify this option for all of
the qcow2 tests, but I can see that that's not really feasible...

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