[Qemu-block] [PATCH v3 0/5] blockdev-backup: don't check aio_context too early

[John Snow]

See patch one's commit message for justification.
Patches 2-5 are for testing, because that's always how these things go.

001/5:[----] [--] 'blockdev-backup: don't check aio_context too early'
002/5:[0004] [FC] 'iotests.py: do not use infinite waits'
003/5:[down]      'QEMUMachine: add events_wait method'
004/5:[0022] [FC] 'iotests.py: rewrite run_job to be pickier'
005/5:[0017] [FC] 'iotests: add iotest 250 for testing blockdev-backup
                   across iothread contexts'

v3: Rebased on Max's staging branch:
    Rebase patch 2
    added patch 3, to add events_wait.
    Rework patch 4 to make run_job consume legacy events, too
    Minorly edit patch 5 due to the two above.
v2: added patch 4, with iotest framework adjustments in patches 2/3.

John Snow (5):
  blockdev-backup: don't check aio_context too early
  iotests.py: do not use infinite waits
  QEMUMachine: add events_wait method
  iotests.py: rewrite run_job to be pickier
  iotests: add iotest 250 for testing blockdev-backup across iothread
    contexts

 blockdev.c                    |   4 --
 python/qemu/__init__.py       |  69 +++++++++++++------
 tests/qemu-iotests/250        | 122 ++++++++++++++++++++++++++++++++++
 tests/qemu-iotests/250.out    | 119 +++++++++++++++++++++++++++++++++
 tests/qemu-iotests/group      |   1 +
 tests/qemu-iotests/iotests.py |  60 ++++++++++-------
 6 files changed, 326 insertions(+), 49 deletions(-)
 create mode 100755 tests/qemu-iotests/250
 create mode 100644 tests/qemu-iotests/250.out

-- 
2.20.1