[PULL 00/39] Block layer patches

[Kevin Wolf <kwolf@redhat.com>]

The following changes since commit ccdf06c1db192152ac70a1dd974c624f566cb7d4:

  Open 6.1 development tree (2021-04-30 11:15:40 +0100)

are available in the Git repository at:

  git://repo.or.cz/qemu/kevin.git tags/for-upstream

for you to fetch changes up to 68bf7336533faa6aa90fdd4558edddbf5d8ef814:

  vhost-user-blk: Fail gracefully on too large queue size (2021-04-30 12:27:48 +0200)

----------------------------------------------------------------
Block layer patches

- Fix permission update order problems with block graph changes
- qemu-img convert: Unshare write permission for source
- vhost-user-blk: Fail gracefully on too large queue size

----------------------------------------------------------------
Kevin Wolf (3):
      block: Add BDRV_O_NO_SHARE for blk_new_open()
      qemu-img convert: Unshare write permission for source
      vhost-user-blk: Fail gracefully on too large queue size

Vladimir Sementsov-Ogievskiy (36):
      tests/test-bdrv-graph-mod: add test_parallel_exclusive_write
      tests/test-bdrv-graph-mod: add test_parallel_perm_update
      tests/test-bdrv-graph-mod: add test_append_greedy_filter
      block: bdrv_append(): don't consume reference
      block: BdrvChildClass: add .get_parent_aio_context handler
      block: drop ctx argument from bdrv_root_attach_child
      block: make bdrv_reopen_{prepare,commit,abort} private
      util: add transactions.c
      block: bdrv_refresh_perms: check for parents permissions conflict
      block: refactor bdrv_child* permission functions
      block: rewrite bdrv_child_try_set_perm() using bdrv_refresh_perms()
      block: inline bdrv_child_*() permission functions calls
      block: use topological sort for permission update
      block: add bdrv_drv_set_perm transaction action
      block: add bdrv_list_* permission update functions
      block: add bdrv_replace_child_safe() transaction action
      block: fix bdrv_replace_node_common
      block: add bdrv_attach_child_common() transaction action
      block: add bdrv_attach_child_noperm() transaction action
      block: split out bdrv_replace_node_noperm()
      block: adapt bdrv_append() for inserting filters
      block: add bdrv_remove_filter_or_cow transaction action
      block: introduce bdrv_drop_filter()
      block/backup-top: drop .active
      block: drop ignore_children for permission update functions
      block: make bdrv_unset_inherits_from to be a transaction action
      block: make bdrv_refresh_limits() to be a transaction action
      block: add bdrv_set_backing_noperm() transaction action
      block: bdrv_reopen_multiple(): move bdrv_flush to separate pre-prepare
      block: bdrv_reopen_multiple: refresh permissions on updated graph
      block: drop unused permission update functions
      block: inline bdrv_check_perm_common()
      block: inline bdrv_replace_child()
      block: refactor bdrv_child_set_perm_safe() transaction action
      block: rename bdrv_replace_child_safe() to bdrv_replace_child()
      block: refactor bdrv_node_check_perm()

 include/block/block.h                 |   14 +-
 include/block/block_int.h             |    8 +-
 include/qemu/transactions.h           |   63 ++
 block.c                               | 1329 ++++++++++++++++++++-------------
 block/backup-top.c                    |   48 +-
 block/block-backend.c                 |   30 +-
 block/commit.c                        |    1 +
 block/file-posix.c                    |   91 +--
 block/io.c                            |   31 +-
 block/mirror.c                        |    3 -
 blockdev.c                            |    4 -
 blockjob.c                            |   11 +-
 hw/block/vhost-user-blk.c             |    5 +
 qemu-img.c                            |    2 +-
 tests/unit/test-bdrv-drain.c          |    2 +-
 tests/unit/test-bdrv-graph-mod.c      |  209 +++++-
 util/transactions.c                   |   96 +++
 MAINTAINERS                           |    6 +
 tests/qemu-iotests/245                |    2 +-
 tests/qemu-iotests/283.out            |    2 +-
 tests/qemu-iotests/tests/qsd-jobs.out |    2 +-
 util/meson.build                      |    1 +
 22 files changed, 1280 insertions(+), 680 deletions(-)
 create mode 100644 include/qemu/transactions.h
 create mode 100644 util/transactions.c