[PATCH v13 00/15] backup-top filter driver for backup - Vladimir Sementsov-Ogievskiy

From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
To: qemu-block@nongnu.org
Cc: fam@euphon.net, kwolf@redhat.com, vsementsov@virtuozzo.com,
	wencongyang2@huawei.com, xiechanglong.d@gmail.com,
	qemu-devel@nongnu.org, armbru@redhat.com, jsnow@redhat.com,
	stefanha@redhat.com, den@openvz.org, mreitz@redhat.com
Subject: [PATCH v13 00/15] backup-top filter driver for backup
Date: Fri, 20 Sep 2019 17:20:41 +0300	[thread overview]
Message-ID: <20190920142056.12778-1-vsementsov@virtuozzo.com> (raw)

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,v12 -> v13 changes:

[v12 was two fixes in separate: [PATCH v12 0/2] backup: copy_range fixes]

01: new in v12, in v13 change comment
02: in v12: add "Fixes: " to commit msg, in v13 add John's r-b
05: rebase on 01
07: rebase on 01. It still a clean movement, keep r-b

Vladimir Sementsov-Ogievskiy (15):
  block/backup: fix max_transfer handling for copy_range
  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            | 346 ++++++++++++++++
 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, 1287 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

-- 
2.21.0