10.09.2019 13:23, Vladimir Sementsov-Ogievskiy wrote:
> Hi all!
>
> These series introduce backup-top driver. It's a filter-node, which
> do copy-before-write operation. Mirror uses filter-node for handling
> guest writes, let's move to filter-node (from write-notifiers) for
> backup too.
>
> v11: based on Kevin's block branch
Now based on master
>
> 02,03: Add Max's r-b
> 04: - improve comments
> - rebase on dropped backup_drain
> - s/job/bcs/ in trace events
> 05: one hunk dropped due to rebasing
> on dropped backup_drain, still,
> keep Max's r-b
> 06: rebased on 04 changes, keep Max's r-b
> 08,13,14: add Max's r-b
>
> Based-on: git://repo.or.cz/qemu/kevin.git block
>
> Vladimir Sementsov-Ogievskiy (14):
> block/backup: fix backup_cow_with_offload for last cluster
> block/backup: split shareable copying part from backup_do_cow
> block/backup: improve comment about image fleecing
> block/backup: introduce BlockCopyState
> block/backup: fix block-comment style
> block: move block_copy from block/backup.c to separate file
> block: teach bdrv_debug_breakpoint skip filters with backing
> iotests: prepare 124 and 257 bitmap querying for backup-top filter
> iotests: 257: drop unused Drive.device field
> iotests: 257: drop device_add
> block/io: refactor wait_serialising_requests
> block: add lock/unlock range functions
> block: introduce backup-top filter driver
> block/backup: use backup-top instead of write notifiers
>
> qapi/block-core.json | 8 +-
> block/backup-top.h | 37 ++
> include/block/block-copy.h | 84 ++++
> include/block/block_int.h | 5 +
> block.c | 34 +-
> block/backup-top.c | 240 ++++++++++++
> block/backup.c | 440 ++++-----------------
> block/block-copy.c | 337 ++++++++++++++++
> block/io.c | 68 +++-
> block/replication.c | 2 +-
> blockdev.c | 1 +
> block/Makefile.objs | 3 +
> block/trace-events | 14 +-
> tests/qemu-iotests/056 | 8 +-
> tests/qemu-iotests/124 | 83 ++--
> tests/qemu-iotests/257 | 91 ++---
> tests/qemu-iotests/257.out | 714 ++++++++++++++--------------------
> tests/qemu-iotests/iotests.py | 27 ++
> 18 files changed, 1278 insertions(+), 918 deletions(-)
> create mode 100644 block/backup-top.h
> create mode 100644 include/block/block-copy.h
> create mode 100644 block/backup-top.c
> create mode 100644 block/block-copy.c
>
--
Best regards,
Vladimir