Re: [PATCH v2 for-6.0 0/8] nbd reconnect on open

[Eric Blake <eblake@redhat.com>]

On 11/30/20 7:40 AM, Vladimir Sementsov-Ogievskiy wrote:
> Hi all! There is a new feature: reconnect on open. It is useful when
> start of vm and start of nbd server are not simple to sync.
> 
> v2: rebase on master.
> Also, I've discovered that I've sent downstream version of test which
> doesn't work here. So, the test is rewritten (with appropriate
> improvements of iotests.py)

Because of my questions on 2, I haven't queued the series yet; but 3 and
4 were independent enough to take now.

> 
> Vladimir Sementsov-Ogievskiy (8):
>   block/nbd: move initial connect to coroutine
>   nbd: allow reconnect on open, with corresponding new options
>   iotests.py: fix qemu_tool_pipe_and_status()
>   iotests.py: qemu_io(): reuse qemu_tool_pipe_and_status()
>   iotests.py: add qemu_tool_popen()
>   iotests.py: add and use qemu_io_wrap_args()
>   iotests.py: add qemu_io_popen()
>   iotests: add 306 to test reconnect on nbd open
> 
>  block/nbd.c                   | 173 +++++++++++++++++++++++++---------
>  tests/qemu-iotests/306        |  71 ++++++++++++++
>  tests/qemu-iotests/306.out    |  11 +++
>  tests/qemu-iotests/group      |   1 +
>  tests/qemu-iotests/iotests.py |  56 +++++++----
>  5 files changed, 246 insertions(+), 66 deletions(-)
>  create mode 100755 tests/qemu-iotests/306
>  create mode 100644 tests/qemu-iotests/306.out
> 

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org