[Qemu-devel] [PATCH v2 00/16] block: Make blockdev-create a job and stable API

[Kevin Wolf <kwolf@redhat.com>]

This changes the x-blockdev-create QMP command so that it doesn't block
the monitor and the main loop any more, but starts a background job that
performs the image creation.

The basic job as implemented here is all that is necessary to make image
creation asynchronous and to provide a QMP interface that can be marked
stable, but it still lacks a few features that jobs usually provide: The
job will ignore pause commands and it doesn't publish progress yet (so
both current-progress and total-progress stay at 0). These features can
be added later without breaking compatibility.

At the end of the series, the interface is declared stable and the x-
prefix is removed.

v2:
- Made job->error == NULL iff job->ret == 0 [Max]
- Fixed a comment in qmp_blockdev_create() and added a TODO comment for
  AioContext locking at least [Max]
- Many small changes in the tests [Max, Jeff]

Kevin Wolf (16):
  vdi: Fix vdi_co_do_create() return value
  vhdx: Fix vhdx_co_create() return value
  job: Add error message for failing jobs
  block/create: Make x-blockdev-create a job
  qemu-iotests: Add VM.get_qmp_events_filtered()
  qemu-iotests: Add VM.qmp_log()
  qemu-iotests: Add iotests.img_info_log()
  qemu-iotests: Add VM.run_job()
  qemu-iotests: iotests.py helper for non-file protocols
  qemu-iotests: Rewrite 206 for blockdev-create job
  qemu-iotests: Rewrite 207 for blockdev-create job
  qemu-iotests: Rewrite 210 for blockdev-create job
  qemu-iotests: Rewrite 211 for blockdev-create job
  qemu-iotests: Rewrite 212 for blockdev-create job
  qemu-iotests: Rewrite 213 for blockdev-create job
  block/create: Mark blockdev-create stable

 qapi/block-core.json          |  18 +-
 qapi/job.json                 |   4 +-
 include/qemu/job.h            |   7 +-
 block/backup.c                |   2 +-
 block/commit.c                |   2 +-
 block/create.c                |  67 +++--
 block/mirror.c                |   2 +-
 block/stream.c                |   2 +-
 block/vdi.c                   |   1 +
 block/vhdx.c                  |   2 +-
 job-qmp.c                     |   9 +-
 job.c                         |  16 +-
 tests/test-bdrv-drain.c       |   2 +-
 tests/test-blockjob-txn.c     |   2 +-
 tests/test-blockjob.c         |   2 +-
 tests/qemu-iotests/206        | 680 ++++++++++++++++--------------------------
 tests/qemu-iotests/206.out    | 253 +++++++++-------
 tests/qemu-iotests/207        | 440 ++++++++++++---------------
 tests/qemu-iotests/207.out    | 107 +++----
 tests/qemu-iotests/210        | 393 ++++++++++--------------
 tests/qemu-iotests/210.out    | 197 ++++++++----
 tests/qemu-iotests/211        | 381 ++++++++++-------------
 tests/qemu-iotests/211.out    | 133 +++++----
 tests/qemu-iotests/212        | 483 +++++++++++-------------------
 tests/qemu-iotests/212.out    | 191 +++++++-----
 tests/qemu-iotests/213        | 520 ++++++++++++--------------------
 tests/qemu-iotests/213.out    | 208 ++++++++-----
 tests/qemu-iotests/iotests.py |  78 +++++
 28 files changed, 1979 insertions(+), 2223 deletions(-)

-- 
2.13.6