Hi,

v1 cover letter:
https://lists.nongnu.org/archive/html/qemu-devel/2022-02/msg04592.html

v2 cover letter:
https://lists.nongnu.org/archive/html/qemu-block/2022-03/msg00041.html

Thanks a lot for the review and testing on v2; but I missed that I’d
have to send v3 because qemu_img_pipe_and_status() has just been
removed, which was used in patch 1 of v2. :/


v3:
- Patch 1: Use qemu_img(check=False) instead of
           qemu_img_pipe_and_status()
- Patch 2: Rebase-caused import conflict


git backport-diff against v2:

Key:
[----] : patches are identical
[####] : number of functional differences between upstream/downstream patch
[down] : patch is downstream-only
The flags [FC] indicate (F)unctional and (C)ontextual differences, respectively

001/3:[0011] [FC] 'iotests.py: Add supports_qcow2_zstd_compression()'
002/3:[0004] [FC] 'iotests/065: Check for zstd support'
003/3:[----] [--] 'iotests/303: Check for zstd support'


Hanna Reitz (3):
  iotests.py: Add supports_qcow2_zstd_compression()
  iotests/065: Check for zstd support
  iotests/303: Check for zstd support

 tests/qemu-iotests/065        | 24 ++++++++++++++++++------
 tests/qemu-iotests/303        |  4 +++-
 tests/qemu-iotests/iotests.py | 20 ++++++++++++++++++++
 3 files changed, 41 insertions(+), 7 deletions(-)

-- 
2.35.1