[PATCH v2 0/2] fix qcow2_can_store_new_dirty_bitmap

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

Hi all!

Here is a fix for persistent bitmaps managing: we must check existent
but not yet stored bitmaps for qcow2-related constraints, like maximum
number of bitmaps in qcow2 image.

v2:

01: change assertion to error-return at function start
    Be free to add
    Reported-by: aihua liang <aliang@redhat.com>
    Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1712636
    if it's appropriate
02: new test
    Ohh, it takes about 4 minutes. Be free to drop it, as I doubt that
    it worth to have. The case is simple, we may live without a
    test.

Vladimir Sementsov-Ogievskiy (2):
  qcow2-bitmaps: fix qcow2_can_store_new_dirty_bitmap
  iotests: add 269 to check maximum of bitmaps in qcow2

 block/qcow2-bitmap.c       | 41 +++++++++++++++------------------
 tests/qemu-iotests/269     | 47 ++++++++++++++++++++++++++++++++++++++
 tests/qemu-iotests/269.out |  3 +++
 tests/qemu-iotests/group   |  1 +
 4 files changed, 69 insertions(+), 23 deletions(-)
 create mode 100755 tests/qemu-iotests/269
 create mode 100644 tests/qemu-iotests/269.out

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2.21.0