[Qemu-block] [PATCH 00/15] Add an 'id' field to block jobs

[Alberto Garcia]

Hello all,

Block jobs are currently identified by the name of the block backend
of the BDS where the job was started.

This series adds a new 'id' field that is specific to the block job
and guaranteed to be unique and always present.

The patches can be summarized as follows:

- 1: Fix the prototype of stream_start(), that is going to be touched
     by a later patch in the series.
- 2-5: Split BlockJob's 'id' field into 'id' and 'device' and adjust
       the internal APIs to allow using the job ID.
- 6-9: Add parameters to allow setting the job ID to all QMP commands
       that create block jobs (block-stream, block-commit, ...)
- 10-14: Add parameters to allow using the job ID to all QMP command
         that manipulate block jobs (cancel, pause, complete, ...).
- 15: Expose the ID field in BlockJobInfo and all BLOCK_JOB_* events.

Things to do:

- Add new tests specific to job IDs.
- Add job ID support to HMP commands.

The series applies on top of Max's block branch (commit 3cc2f35a59)
but it should work on master as well.

Questions, comments, etc, are welcome.

Thanks!

Berto

Alberto Garcia (15):
  stream: Fix prototype of stream_start()
  blockjob: Decouple the ID from the device name in the BlockJob struct
  blockjob: Add block_job_get()
  block: Simplify find_block_job() and make it accept a job ID
  blockjob: Add 'job_id' parameter to block_job_create()
  mirror: Add 'job-id' parameter to 'blockdev-mirror' and 'drive-mirror'
  backup: Add 'job-id' parameter to 'blockdev-backup' and 'drive-backup'
  stream: Add 'job-id' parameter to 'block-stream'
  stream: Add 'job-id' parameter to 'block-commit'
  blockjob: Add 'id' parameter to 'block-job-set-speed'
  blockjob: Add 'id' parameter to 'block-job-cancel'
  blockjob: Add 'id' parameter to 'block-job-pause'
  blockjob: Add 'id' parameter to 'block-job-resume'
  blockjob: Add 'id' parameter to 'block-job-complete'
  blockjob: Add 'id' field to 'BlockJobInfo' and all BLOCK_JOB_* events

 block/backup.c             |   9 +--
 block/commit.c             |   7 +-
 block/mirror.c             |  18 ++---
 block/stream.c             |  12 ++--
 blockdev.c                 | 164 ++++++++++++++++++++++++++-------------------
 blockjob.c                 |  43 ++++++++++--
 docs/qmp-events.txt        |   4 ++
 hmp.c                      |  16 ++---
 include/block/block_int.h  |  47 ++++++++-----
 include/block/blockjob.h   |  30 +++++++--
 include/qemu/id.h          |   1 +
 qapi/block-core.json       |  91 +++++++++++++++++++------
 qemu-img.c                 |   2 +-
 qmp-commands.hx            |  32 +++++----
 tests/qemu-iotests/095     |   2 +-
 tests/qemu-iotests/095.out |   2 +-
 tests/qemu-iotests/124     |   3 +-
 tests/qemu-iotests/141     |   6 +-
 tests/qemu-iotests/141.out |  14 ++--
 tests/qemu-iotests/144     |   1 +
 tests/qemu-iotests/144.out |   4 +-
 tests/test-blockjob-txn.c  |   2 +-
 util/id.c                  |   1 +
 23 files changed, 334 insertions(+), 177 deletions(-)

-- 
2.8.1