Re: [PATCH 0/6] qemu-img: rebase: add compression support

[Andrey Drobyshev]

On 7/31/23 17:43, Andrey Drobyshev wrote:
> On 7/24/23 16:11, Andrey Drobyshev wrote:
>> On 6/30/23 13:54, Denis V. Lunev wrote:
>>> On 6/1/23 21:28, Andrey Drobyshev wrote:
>>>> This series is adding [-c | --compress] option to "qemu-img rebase"
>>>> command, which might prove useful for saving some disk space when, for
>>>> instance, manipulating chains of backup images.  Along the way I had to
>>>> make a couple of minor improvements.
>>>>
>>>> The first 2 patches are a bug fix + corresponding test case.
>>>> Patch 3 merely fixes wrong args used in allocation.
>>>> Patch 4 makes write requests during rebase operation
>>>> cluster_size-aligned,
>>>> which seems to be beneficial for both non-compressed and compressed mode.
>>>> The last 2 patches are the actual feature implementation + tests.
>>>>
>>>> Andrey Drobyshev (6):
>>>>    qemu-img: rebase: stop when reaching EOF of old backing file
>>>>    qemu-iotests: 024: add rebasing test case for overlay_size >
>>>>      backing_size
>>>>    qemu-img: rebase: use backing files' BlockBackend for buffer alignment
>>>>    qemu-img: rebase: avoid unnecessary COW operations
>>>>    qemu-img: add compression option to rebase subcommand
>>>>    iotests: add test 314 for "qemu-img rebase" with compression
>>>>
>>>>   docs/tools/qemu-img.rst    |   6 +-
>>>>   qemu-img-cmds.hx           |   4 +-
>>>>   qemu-img.c                 | 106 ++++++++++++++++++------
>>>>   tests/qemu-iotests/024     |  57 +++++++++++++
>>>>   tests/qemu-iotests/024.out |  30 +++++++
>>>>   tests/qemu-iotests/314     | 165 +++++++++++++++++++++++++++++++++++++
>>>>   tests/qemu-iotests/314.out |  75 +++++++++++++++++
>>>>   7 files changed, 415 insertions(+), 28 deletions(-)
>>>>   create mode 100755 tests/qemu-iotests/314
>>>>   create mode 100644 tests/qemu-iotests/314.out
>>>>
>>> ping
>>
>> Friendly ping after 7 weeks
> 
> Yet another ping

One more ping after 12 weeks of silence