[Qemu-devel] [PATCH v6 0/4] qmp: Add "blockdev-backup"

[Fam Zheng <famz@redhat.com>]

v6: Add Eric's rev-by in 1/4.
    Address minor comments in 2/4, 3/4.
    Add John's rev-by in 3/4.

v5: Address Max's and Markus' comments:
    Split patch 1. (Markus)
    Fix typos and pastos. (Markus, Max)
    Actually acquire aio context. (Max)
    Drop unnecessary initialization of fields in blockdev_backup_prepare. (Max)
    Add "sync" in the document example.
    Add Max's rev-by in patch 4.

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):
  qapi: Comment version info in TransactionAction
  qmp: Add command 'blockdev-backup'
  block: Add blockdev-backup to transaction
  qemu-iotests: Test blockdev-backup in 055

 block/backup.c             |  28 ++++++
 blockdev.c                 | 133 ++++++++++++++++++++++++++++
 qapi-schema.json           |   8 ++
 qapi/block-core.json       |  54 ++++++++++++
 qmp-commands.hx            |  42 +++++++++
 tests/qemu-iotests/055     | 211 +++++++++++++++++++++++++++++++++++++--------
 tests/qemu-iotests/055.out |   4 +-
 7 files changed, 441 insertions(+), 39 deletions(-)

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1.9.3