[Qemu-devel] [PATCH v2 0/3] qemu-img convert: Rewrite copying logic

[Kevin Wolf]

See the commit message of patch 2 for the background.

v2:
- Rebased. Commit f1d3cd79 changed many bdrv_* calls to blk_* calls.
  This version tries to keep those conversions and use BlockBackend
  where qemu.git master does or where it makes sense. Added patch 1 to
  get blk_write_zeroes().
- Renamed s->out_backing as s->target_has_backing [Max]
- convert_iteration_sectors(): Limit n to BDRV_REQUEST_MAX_SECTORS
  instead of INT_MAX [Max]
- convert_read(): Fixed sector number for image concatenation [Max]
- Fixed -S 0 for full allocation [Max, Peter]
- Leave has_zero_init = false instead of failing the conversion if
  bdrv_make_zero() returns an error [Max]
- Set has_zero_init = true instead of 1 [Max]
- Don't ignore error returns in a final blk_write_compressed() [Max]
- Removed TODO comment after deciding that no change is needed
- Many added tests

Kevin Wolf (3):
  block-backend: Expose bdrv_write_zeroes()
  qemu-img convert: Rewrite copying logic
  qemu-iotests: Some qemu-img convert tests

 block/block-backend.c          |  11 +
 include/sysemu/block-backend.h |   2 +
 qemu-img.c                     | 516 +++++++++++++++++++++++++----------------
 tests/qemu-iotests/122         | 223 ++++++++++++++++++
 tests/qemu-iotests/122.out     | 209 +++++++++++++++++
 tests/qemu-iotests/group       |   1 +
 6 files changed, 756 insertions(+), 206 deletions(-)
 create mode 100755 tests/qemu-iotests/122
 create mode 100644 tests/qemu-iotests/122.out

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1.8.3.1