[Qemu-devel] [PATCH v2 RESEND 0/4] qmp: Add "blockdev-backup"

[Fam Zheng]

v2: Address Markus' and Eric's comments:
    Fix qapi schema documentation.
    Fix versioning of transactions.
    Improve test case code by dropping inelegnet bool.

The existing drive-backup command accepts a target file path, but that
interface provides little flexibility on the properties of target block device,
compared to what is possible with "blockdev-add", "drive_add" or "-drive".

This is also a building block to allow image fleecing (creating a point in time
snapshot and export with nbd-server-add).

(For symmetry, blockdev-mirror will be added in a separate series.)

Fam

Fam Zheng (4):
  qmp: Add command 'blockdev-backup'
  block: Add blockdev-backup to transaction
  qapi-schema: Add version info for transaction types
  qemu-iotests: Test blockdev-backup in 055

 block/backup.c             |  28 ++++++
 blockdev.c                 |  95 ++++++++++++++++++++
 qapi-schema.json           |   6 ++
 qapi/block-core.json       |  53 ++++++++++++
 qmp-commands.hx            |  44 ++++++++++
 tests/qemu-iotests/055     | 211 +++++++++++++++++++++++++++++++++++++--------
 tests/qemu-iotests/055.out |   4 +-
 7 files changed, 402 insertions(+), 39 deletions(-)

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1.9.3