[PATCH v4 0/6] Allow changing bs->file on reopen

[Alberto Garcia <berto@igalia.com>]

Based-on: <20210317143529.615584-1-vsementsov@virtuozzo.com>

Hello,

this is the same as v3, but rebased on top of Vladimir's "block:
update graph permissions update v3", which you can get here:

git: https://src.openvz.org/scm/~vsementsov/qemu.git
tag: up-block-topologic-perm-v3

Tip: you may find it easier to review patch 4 if you use 'git diff -w'
since a big part of the changes that you see in
qmp_x_blockdev_reopen() are just indentation changes.

Berto

v4:
- Rebase on top of version 3 of Vladimir's branch
v3: https://lists.gnu.org/archive/html/qemu-block/2021-03/msg00553.html
v2: https://lists.gnu.org/archive/html/qemu-block/2021-02/msg00623.html
v1: https://lists.gnu.org/archive/html/qemu-block/2021-01/msg00437.html

Output of git backport-diff against v3:

Key:
[----] : patches are identical
[####] : number of functional differences between upstream/downstream patch
[down] : patch is downstream-only
The flags [FC] indicate (F)unctional and (C)ontextual differences, respectively

001/6:[----] [--] 'block: Add bdrv_reopen_queue_free()'
002/6:[0018] [FC] 'block: Allow changing bs->file on reopen'
003/6:[----] [--] 'iotests: Test replacing files with x-blockdev-reopen'
004/6:[0071] [FC] 'block: Support multiple reopening with x-blockdev-reopen'
005/6:[----] [--] 'iotests: Test reopening multiple devices at the same time'
006/6:[----] [-C] 'block: Make blockdev-reopen stable API'

Alberto Garcia (6):
  block: Add bdrv_reopen_queue_free()
  block: Allow changing bs->file on reopen
  iotests: Test replacing files with x-blockdev-reopen
  block: Support multiple reopening with x-blockdev-reopen
  iotests: Test reopening multiple devices at the same time
  block: Make blockdev-reopen stable API

 qapi/block-core.json       |  24 ++---
 include/block/block.h      |   2 +
 block.c                    | 135 ++++++++++++++++----------
 blockdev.c                 |  78 +++++++++------
 tests/qemu-iotests/155     |   9 +-
 tests/qemu-iotests/165     |   4 +-
 tests/qemu-iotests/245     | 190 +++++++++++++++++++++++++++++++++----
 tests/qemu-iotests/245.out |  11 ++-
 tests/qemu-iotests/248     |   4 +-
 tests/qemu-iotests/248.out |   2 +-
 tests/qemu-iotests/296     |  11 ++-
 tests/qemu-iotests/298     |   4 +-
 12 files changed, 351 insertions(+), 123 deletions(-)

-- 
2.20.1