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?