[Qemu-block] [PATCH v3 0/3] nbd: Async built-in server negotiation

[Fam Zheng]

v3: Rework previous patch 2 (fix the busy loop bug and split to two patches).
    [Paolo]

During nbd_send_negotiate, if the client simply doesn't respond, the function
will not return, and the whole event loop is blocked.

Make the I/O effectively asynchronous by using coroutine read/write, so that a
malicious or disappeared client cannot make a hang.

Fam

Fam Zheng (3):
  nbd: Always call "close_fn" in nbd_client_new
  nbd: Split nbd.c
  nbd-server: Coroutine based negotiation

 MAINTAINERS                  |   5 +-
 Makefile.objs                |   3 +-
 blockdev-nbd.c               |   5 +-
 include/block/nbd-internal.h | 113 +++++++++
 include/block/nbd.h          |   3 +-
 nbd/Makefile.objs            |   1 +
 nbd/client.c                 | 361 ++++++++++++++++++++++++++
 nbd/common.c                 |  64 +++++
 nbd.c => nbd/server.c        | 588 ++++++++-----------------------------------
 qemu-nbd.c                   |  10 +-
 tests/qemu-iotests/083       |   2 +-
 11 files changed, 649 insertions(+), 506 deletions(-)
 create mode 100644 include/block/nbd-internal.h
 create mode 100644 nbd/Makefile.objs
 create mode 100644 nbd/client.c
 create mode 100644 nbd/common.c
 rename nbd.c => nbd/server.c (62%)

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2.4.3