[PATCH for-5.1 v2 0/2] qemu-img convert -n: Keep qcow2 v2 target sparse

[Kevin Wolf]

v2:
- Fixed iotest for IMGOPTS that contains v3-only features [Max]
- Some code cleanups in the iotest [Nir]

Kevin Wolf (2):
  qcow2: Implement v2 zero writes with discard if possible
  iotests: Test sparseness for qemu-img convert -n

 block/qcow2-cluster.c      |  9 ++++++++-
 tests/qemu-iotests/122     | 30 ++++++++++++++++++++++++++++++
 tests/qemu-iotests/122.out | 17 +++++++++++++++++
 3 files changed, 55 insertions(+), 1 deletion(-)

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2.25.4