[v1] bitmaps: merge bitmaps from different nodes

[Qemu-devel] [PATCH 0/2] bitmaps: merge bitmaps from different nodes

Vladimir Sementsov-Ogievskiy posted 2 patches 4 years, 11 months ago

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git fetch https://github.com/patchew-project/qemu tags/patchew/20190516122725.132334-1-vsementsov@virtuozzo.com

Maintainers: Eric Blake <eblake@redhat.com>, John Snow <jsnow@redhat.com>, Markus Armbruster <armbru@redhat.com>, Fam Zheng <fam@euphon.net>, Max Reitz <mreitz@redhat.com>, Kevin Wolf <kwolf@redhat.com>

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qapi/block-core.json       | 13 +++++++---
block/dirty-bitmap.c       |  9 ++++---
blockdev.c                 | 46 +++++++++++++++++++++++----------
tests/qemu-iotests/254     | 52 +++++++++++++++++++++++++++++++++++++
tests/qemu-iotests/254.out | 53 ++++++++++++++++++++++++++++++++++++++
tests/qemu-iotests/group   |  1 +
6 files changed, 154 insertions(+), 20 deletions(-)
create mode 100755 tests/qemu-iotests/254
create mode 100644 tests/qemu-iotests/254.out

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[Qemu-devel] [PATCH 0/2] bitmaps: merge bitmaps from different nodes

Posted by Vladimir Sementsov-Ogievskiy 4 years, 11 months ago

Hi all!

We need to copy bitmaps to new top node on external snapshot, to
not break incremental backup chain.

The only thing to do is to allow block-dirty-bitmap-merge to work
with different nodes, here it is.

Vladimir Sementsov-Ogievskiy (2):
  qapi: support external bitmaps in block-dirty-bitmap-merge
  iotests: test external snapshot with bitmap copying

 qapi/block-core.json       | 13 +++++++---
 block/dirty-bitmap.c       |  9 ++++---
 blockdev.c                 | 46 +++++++++++++++++++++++----------
 tests/qemu-iotests/254     | 52 +++++++++++++++++++++++++++++++++++++
 tests/qemu-iotests/254.out | 53 ++++++++++++++++++++++++++++++++++++++
 tests/qemu-iotests/group   |  1 +
 6 files changed, 154 insertions(+), 20 deletions(-)
 create mode 100755 tests/qemu-iotests/254
 create mode 100644 tests/qemu-iotests/254.out

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2.18.0