[PATCH v3 0/5] backup: discard-source parameter

[Vladimir Sementsov-Ogievskiy]

Hi all! The main patch is 04, please look at it for description and
diagram.

v3:
02: new patch
04: take WRITE permission only when discard_source is required

Vladimir Sementsov-Ogievskiy (5):
  block/copy-before-write: fix permission
  block/copy-before-write: support unligned snapshot-discard
  block/copy-before-write: create block_copy bitmap in filter node
  qapi: blockdev-backup: add discard-source parameter
  iotests: add backup-discard-source

 block/backup.c                                |   5 +-
 block/block-copy.c                            |  12 +-
 block/copy-before-write.c                     |  39 ++++-
 block/copy-before-write.h                     |   1 +
 block/replication.c                           |   4 +-
 blockdev.c                                    |   2 +-
 include/block/block-common.h                  |   2 +
 include/block/block-copy.h                    |   2 +
 include/block/block_int-global-state.h        |   2 +-
 qapi/block-core.json                          |   4 +
 tests/qemu-iotests/257.out                    | 112 ++++++-------
 .../qemu-iotests/tests/backup-discard-source  | 151 ++++++++++++++++++
 .../tests/backup-discard-source.out           |   5 +
 13 files changed, 271 insertions(+), 70 deletions(-)
 create mode 100755 tests/qemu-iotests/tests/backup-discard-source
 create mode 100644 tests/qemu-iotests/tests/backup-discard-source.out

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2.34.1