v4 was here:
https://lists.gnu.org/archive/html/qemu-devel/2024-04/msg00624.html

Since then: add some asserts [Vladimir], add second patch with more
coroutine_fn annotations [Vladimir]

Eric Blake (1):
  nbd/server: Mark negotiation functions as coroutine_fn

Zhu Yangyang (1):
  nbd/server: do not poll within a coroutine context

 nbd/nbd-internal.h |  10 ----
 nbd/client.c       |  28 ++++++++--
 nbd/common.c       |  11 ----
 nbd/server.c       | 128 ++++++++++++++++++++++++++++-----------------
 4 files changed, 105 insertions(+), 72 deletions(-)

-- 
2.44.0