Re: [Qemu-devel] [Qemu-block] [PATCH 0/5] commit: Support multiple roots above top node

[John Snow <jsnow@redhat.com>]

On 09/25/2017 08:28 AM, Kevin Wolf wrote:
> This is a step towards making the commit job flexible enough that it can
> work with any kind of block graph. Currently, it requires that not only
> the top and base node of the commit operation are specified, but also
> the active layer of the backing file chain. Of course, the assumption
> that a single active layer exists is invalid.
> 
> This series makes the commit job consider other roots as well so that
> all parent nodes of the top node get their backing file updated and stay
> valid after the commit job completes.
> 
> With this, we should have all of the prerequisites for a follow-up
> series that adds a new and clean blockdev-commit QMP command which
> doesn't require an option for the active layer and which accepts node
> names instead of file names for base and top.
> 
> Kevin Wolf (5):
>   block: Introduce BdrvChildRole.update_filename
>   commit: Support multiple roots above top node
>   qemu-iotests: Allow QMP pretty printing in common.qemu
>   qemu-iotests: Test commit block job where top has two parents
>   commit: Remove overlay_bs
> 
>  include/block/block.h          |   3 +-
>  include/block/block_int.h      |   6 +
>  block.c                        |  91 +++--
>  block/commit.c                 |  64 +---
>  tests/qemu-iotests/030         |   4 -
>  tests/qemu-iotests/191         | 152 ++++++++
>  tests/qemu-iotests/191.out     | 827 +++++++++++++++++++++++++++++++++++++++++
>  tests/qemu-iotests/common.qemu |  14 +-
>  tests/qemu-iotests/group       |   1 +
>  9 files changed, 1078 insertions(+), 84 deletions(-)
>  create mode 100755 tests/qemu-iotests/191
>  create mode 100644 tests/qemu-iotests/191.out
> 

Does this depend on another series?