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[Qemu-devel] [PATCH v2 0/6] external backup api


From: Vladimir Sementsov-Ogievskiy
Subject: [Qemu-devel] [PATCH v2 0/6] external backup api
Date: Sat, 30 Jan 2016 13:56:28 +0300

Hi all.

These series which aims to add external backup api. This is needed to allow
backup software use our dirty bitmaps.

Vmware and Parallels Cloud Server have this feature.

There are three things are done:
- add query-block-dirty-bitmap-ranges qmp command
- add qmp commands for dirty-bitmap functions: create_successor, abdicate,
  reclaim.
- make create-successor command transaction-able

Then, external backup should be done like this:

1.  qmp transaction {
        external-snapshot
        bitmap-create-successor
    }

2.  qmp query frozen bitmap, not acquiring aio context.

3.  do external backup, using snapshot and bitmap


4.  if (success backup)
        qmp bitmap-abdicate
    else
        qmp bitmap-reclaime

5.  qmp merge snapshot


v2: a lot of additions and changes, no sense to compare with v1


Vladimir Sementsov-Ogievskiy (6):
  block dirty bitmap: add next_zero function
  qmp: add query-block-dirty-bitmap-ranges
  iotests: test query-block-dirty-bitmap-ranges
  qapi: add qmp commands for some dirty bitmap functions
  qapi: make block-dirty-bitmap-create-successor transaction-able
  iotests: test external backup api

 block/dirty-bitmap.c         |  60 ++++++++++++++++++++++
 blockdev.c                   | 113 +++++++++++++++++++++++++++++++++++++++++
 include/block/dirty-bitmap.h |   9 ++++
 include/qemu/hbitmap.h       |   8 +++
 qapi-schema.json             |   4 +-
 qapi/block-core.json         |  90 +++++++++++++++++++++++++++++++++
 qmp-commands.hx              | 118 +++++++++++++++++++++++++++++++++++++++++++
 tests/qemu-iotests/150       |  88 ++++++++++++++++++++++++++++++++
 tests/qemu-iotests/150.out   |  21 ++++++++
 tests/qemu-iotests/151       |  77 ++++++++++++++++++++++++++++
 tests/qemu-iotests/151.out   |   7 +++
 tests/qemu-iotests/group     |   2 +
 util/hbitmap.c               |  26 ++++++++++
 13 files changed, 622 insertions(+), 1 deletion(-)
 create mode 100755 tests/qemu-iotests/150
 create mode 100644 tests/qemu-iotests/150.out
 create mode 100755 tests/qemu-iotests/151
 create mode 100644 tests/qemu-iotests/151.out

-- 
1.8.3.1




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