[PATCH for-4.2 0/2] Fix bitmap migration

[Vladimir Sementsov-Ogievskiy]

Hi all!

We've faced a bug in rhev-2.12.0-33.el7-based Qemu.
In upstream, bug introduced in 4.0 by 74da6b943565c45
"block/dirty-bitmaps: implement inconsistent bit" commit.
At this commit we started to load inconsistent bitmap instead of
silently ignoring them, and it now I see that it breaks migration.

The fix is very simple, so I think it's OK for 4.2.. Still, it's not a
degradation, so we may postpone it to 5.0.

Vladimir Sementsov-Ogievskiy (2):
  block/qcow2-bitmap: fix bitmap migration
  iotests: add new test cases to bitmap migration

 block/qcow2-bitmap.c       | 21 ++++++++++++++++++++-
 tests/qemu-iotests/169     | 22 +++++++++++++++-------
 tests/qemu-iotests/169.out |  4 ++--
 3 files changed, 37 insertions(+), 10 deletions(-)

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2.21.0