On 12.08.19 21:46, Max Reitz wrote:
> On 12.08.19 20:11, Vladimir Sementsov-Ogievskiy wrote:
>> Hi all!
>>
>> I'm not sure, is it a bug or a feature, but using qcow2 under raw is
>> broken. It should be either fixed like I propose (by Max's suggestion)
>> or somehow forbidden (just forbid backing-file supporting node to be
>> file child of raw-format node).
> 
> I agree, I think only filters should return BDRV_BLOCK_RAW.
> 
> (And not even them, they should just be handled transparently by
> bdrv_co_block_status().  But that’s something for later.)
> 
>> Vladimir Sementsov-Ogievskiy (2):
>>   block/raw-format: switch to BDRV_BLOCK_DATA with BDRV_BLOCK_RECURSE
>>   iotests: test mirroring qcow2 under raw format
>>
>>  block/raw-format.c         |  2 +-
>>  tests/qemu-iotests/263     | 46 ++++++++++++++++++++++++++++++++++++++
>>  tests/qemu-iotests/263.out | 12 ++++++++++
>>  tests/qemu-iotests/group   |  1 +
>>  4 files changed, 60 insertions(+), 1 deletion(-)
>>  create mode 100755 tests/qemu-iotests/263
>>  create mode 100644 tests/qemu-iotests/263.out
> 
> Thanks, applied to my block-next branch:
> 
> https://git.xanclic.moe/XanClic/qemu/commits/branch/block-next

Oops, maybe not.  221 needs to be adjusted.

Max