[Qemu-devel] [PATCH v6 00/10] block: Incremental backup series

[Fam Zheng <famz@redhat.com>]

v6: Rebased v4 of the series on top of qemu.git. (skipping v5 since it was used
    by me as a private sending, for those who received it, the code is the same
    :)

This is the in memory part of the incremental backup feature.

With the added commands, we can create a bitmap on a block backend, from which
point of time all the writes are tracked by the bitmap, marking sectors as
dirty.  Later, we call drive-backup and pass the bitmap to it, to do an
incremental backup.

See the last patch which adds some tests for this use case.

Fam

Fam Zheng (10):
  qapi: Add optional field "name" to block dirty bitmap
  qmp: Add block-dirty-bitmap-add and block-dirty-bitmap-remove
  block: Introduce bdrv_dirty_bitmap_granularity()
  hbitmap: Add hbitmap_copy
  block: Add bdrv_copy_dirty_bitmap and bdrv_reset_dirty_bitmap
  qmp: Add block-dirty-bitmap-enable and block-dirty-bitmap-disable
  qmp: Add support of "dirty-bitmap" sync mode for drive-backup
  qapi: Add transaction support to
    block-dirty-bitmap-{add,enable,disable}
  qmp: Add dirty bitmap 'enabled' field in query-block
  qemu-iotests: Add tests for drive-backup sync=dirty-bitmap

 block-migration.c             |   2 +-
 block.c                       |  82 ++++++++++++++++-
 block/backup.c                |  54 +++++++++++-
 block/mirror.c                |   6 +-
 blockdev.c                    | 198 +++++++++++++++++++++++++++++++++++++++++-
 hmp.c                         |   4 +-
 include/block/block.h         |  15 +++-
 include/block/block_int.h     |   4 +
 include/qemu/hbitmap.h        |   8 ++
 qapi-schema.json              |   5 +-
 qapi/block-core.json          | 120 +++++++++++++++++++++++--
 qmp-commands.hx               |  66 +++++++++++++-
 tests/qemu-iotests/056        |  33 ++++++-
 tests/qemu-iotests/056.out    |   4 +-
 tests/qemu-iotests/iotests.py |   8 ++
 util/hbitmap.c                |  16 ++++
 16 files changed, 603 insertions(+), 22 deletions(-)

-- 
1.9.3