[PATCH v3 0/3] nbd: MULTI_CONN for shared writable exports

[Eric Blake <eblake@redhat.com>]

v2 was here:
https://lists.gnu.org/archive/html/qemu-devel/2022-02/msg03314.html

Since then:
- expose the knob through 'qemu-nbd -m on|off|auto'
- reuse QAPI OnOffAuto type instead of rolling my own
- rewrite the iotest from bash into python (thanks: Nir, Vladimir)
- split out easy preliminary fixes (patches 1 and 2 are new)

Given that this is a new feature, it probably needs to be 7.1 material.

Eric Blake (3):
  docs: Consistent typography for options of qemu-nbd
  qemu-nbd: Pass max connections to blockdev layer
  nbd/server: Allow MULTI_CONN for shared writable exports

 docs/interop/nbd.txt                       |   1 +
 docs/tools/qemu-nbd.rst                    |  26 ++--
 qapi/block-export.json                     |  19 ++-
 include/block/nbd.h                        |   5 +-
 blockdev-nbd.c                             |  13 +-
 nbd/server.c                               |  27 +++-
 qemu-nbd.c                                 |  22 ++-
 MAINTAINERS                                |   1 +
 tests/qemu-iotests/tests/nbd-multiconn     | 157 +++++++++++++++++++++
 tests/qemu-iotests/tests/nbd-multiconn.out |   5 +
 10 files changed, 252 insertions(+), 24 deletions(-)
 create mode 100755 tests/qemu-iotests/tests/nbd-multiconn
 create mode 100644 tests/qemu-iotests/tests/nbd-multiconn.out

-- 
2.35.1