Available at https://repo.or.cz/qemu/ericb.git/shortlog/refs/tags/exthdr-v1

Patch 14 is optional; I'm including it now because I tested with it,
but I'm also okay with dropping it based on RFC discussion.

Eric Blake (14):
  nbd/server: Minor cleanups
  qemu-io: Utilize 64-bit status during map
  qemu-io: Allow larger write zeroes under no fallback
  nbd/client: Add safety check on chunk payload length
  nbd/server: Prepare for alternate-size headers
  nbd: Prepare for 64-bit requests
  nbd: Add types for extended headers
  nbd/server: Initial support for extended headers
  nbd/server: Support 64-bit block status
  nbd/client: Initial support for extended headers
  nbd/client: Accept 64-bit hole chunks
  nbd/client: Accept 64-bit block status chunks
  nbd/client: Request extended headers during negotiation
  do not apply: nbd/server: Send 64-bit hole chunk

 docs/interop/nbd.txt                          |   1 +
 include/block/nbd.h                           |  94 +++++--
 nbd/nbd-internal.h                            |   8 +-
 block/nbd.c                                   | 102 +++++--
 nbd/client-connection.c                       |   1 +
 nbd/client.c                                  | 150 +++++++---
 nbd/common.c                                  |  10 +-
 nbd/server.c                                  | 262 +++++++++++++-----
 qemu-io-cmds.c                                |  16 +-
 qemu-nbd.c                                    |   2 +
 block/trace-events                            |   1 +
 nbd/trace-events                              |   9 +-
 tests/qemu-iotests/223.out                    |   4 +
 tests/qemu-iotests/233.out                    |   1 +
 tests/qemu-iotests/241                        |   8 +-
 tests/qemu-iotests/307                        |   2 +-
 tests/qemu-iotests/307.out                    |   5 +
 .../tests/nbd-qemu-allocation.out             |   1 +
 18 files changed, 486 insertions(+), 191 deletions(-)

-- 
2.33.1