[PATCH v5 00/12] Exposing backing-chain allocation over NBD

[Eric Blake]

v4 was here:
https://lists.gnu.org/archive/html/qemu-devel/2020-10/msg02708.html

Since then:
- rebase to master
- patches 1, 2, and 12 are new based on Vladimir's observation of QAPI_LIST_ADD
- patches 10-11 are new based on prior discussion on exposing actual
depth in addition to a tri-state encoding
- patch 3 has a nasty bug fixed that was causing iotest failures
- patch 6 updated to take advantage of patch 2
- other minor tweaks based on review comments

001/12:[down] 'qapi: Move GenericList to qapi/util.h'
002/12:[down] 'qapi: Make QAPI_LIST_ADD() public'
003/12:[0002] [FC] 'nbd: Utilize QAPI_CLONE for type conversion'
004/12:[0010] [FC] 'nbd: Add new qemu:allocation-depth metadata context'
005/12:[----] [--] 'nbd: Add 'qemu-nbd -A' to expose allocation depth'
006/12:[0014] [FC] 'nbd: Update qapi to support exporting multiple bitmaps'
007/12:[----] [--] 'nbd: Simplify qemu bitmap context name'
008/12:[----] [--] 'nbd: Refactor counting of metadata contexts'
009/12:[0017] [FC] 'nbd: Allow export of multiple bitmaps for one device'
010/12:[down] 'block: Return depth level during bdrv_is_allocated_above'
011/12:[down] 'nbd: Expose actual depth in qemu:allocation-depth'
012/12:[down] 'qapi: Use QAPI_LIST_ADD() where possible'

Eric Blake (12):
  qapi: Move GenericList to qapi/util.h
  qapi: Make QAPI_LIST_ADD() public
  nbd: Utilize QAPI_CLONE for type conversion
  nbd: Add new qemu:allocation-depth metadata context
  nbd: Add 'qemu-nbd -A' to expose allocation depth
  nbd: Update qapi to support exporting multiple bitmaps
  nbd: Simplify qemu bitmap context name
  nbd: Refactor counting of metadata contexts
  nbd: Allow export of multiple bitmaps for one device
  block: Return depth level during bdrv_is_allocated_above
  nbd: Expose actual depth in qemu:allocation-depth
  qapi: Use QAPI_LIST_ADD() where possible

 docs/devel/writing-qmp-commands.txt |  13 +-
 docs/interop/nbd.txt                |  31 +++-
 docs/system/deprecated.rst          |   4 +-
 docs/tools/qemu-nbd.rst             |   8 +-
 qapi/block-core.json                |   7 +-
 qapi/block-export.json              |  22 ++-
 include/qapi/visitor.h              |   9 +-
 hw/net/rocker/rocker_fp.h           |   2 +-
 include/block/nbd.h                 |  14 +-
 include/qapi/util.h                 |  16 ++
 block/io.c                          |  11 +-
 block.c                             |  15 +-
 block/commit.c                      |   2 +-
 block/gluster.c                     |  19 +--
 block/mirror.c                      |   2 +-
 block/stream.c                      |   2 +-
 blockdev-nbd.c                      |  28 ++--
 chardev/char.c                      |  21 ++-
 hw/core/machine.c                   |   6 +-
 hw/net/rocker/rocker.c              |   8 +-
 hw/net/rocker/rocker_fp.c           |  14 +-
 hw/net/virtio-net.c                 |  21 +--
 migration/migration.c               |   7 +-
 migration/postcopy-ram.c            |   7 +-
 monitor/hmp-cmds.c                  |  11 +-
 nbd/server.c                        | 222 ++++++++++++++++++++++------
 qemu-img.c                          |   5 +-
 qemu-nbd.c                          |  30 ++--
 qga/commands-posix.c                |  13 +-
 qga/commands-win32.c                |  17 +--
 qga/commands.c                      |   6 +-
 qom/qom-qmp-cmds.c                  |  29 +---
 target/arm/helper.c                 |   6 +-
 target/arm/monitor.c                |  13 +-
 target/i386/cpu.c                   |   6 +-
 target/mips/helper.c                |   6 +-
 target/s390x/cpu_models.c           |  12 +-
 tests/test-clone-visitor.c          |   7 +-
 tests/test-qobject-output-visitor.c |  42 +++---
 tests/test-visitor-serialization.c  |   5 +-
 trace/qmp.c                         |  22 ++-
 ui/vnc.c                            |  21 +--
 util/qemu-config.c                  |  14 +-
 target/ppc/translate_init.c.inc     |  12 +-
 tests/qemu-iotests/291              |   6 +-
 tests/qemu-iotests/309              |  73 +++++++++
 tests/qemu-iotests/309.out          |  22 +++
 tests/qemu-iotests/group            |   1 +
 48 files changed, 529 insertions(+), 361 deletions(-)
 create mode 100755 tests/qemu-iotests/309
 create mode 100644 tests/qemu-iotests/309.out

-- 
2.29.0