This is based on my "nbd: error path refactoring" series.
This is an update of first part of my "nbd errors and traces refactoring"

changes from patches 01-10 of "nbd errors and traces refactoring" (mostly
proposed by Eric):
01 new patch
02-03 - split of old 01
08 and 12 - minor changes in commit messages
04-12 - add r-b by Eric

also, of course, renaming in 01 is "visible" in other patches.

Vladimir Sementsov-Ogievskiy (12):
  nbd: rename read_sync and friends
  nbd: make nbd_drop public
  nbd/server: get rid of nbd_negotiate_read and friends
  nbd/server: get rid of ssize_t
  nbd/server: refactor nbd_co_send_reply
  nbd/server: get rid of EAGAIN dead code
  nbd/server: refactor nbd_co_receive_request
  nbd/server: remove NBDClientNewData
  nbd/server: nbd_negotiate: fix error path
  nbd/server: get rid of fail: return rc
  nbd/server: rename rc to ret
  nbd/server: refactor nbd_trip

 block/nbd-client.c  |   8 +-
 include/block/nbd.h |   8 +-
 nbd/client.c        |  64 ++++-------
 nbd/common.c        |  34 +++++-
 nbd/nbd-internal.h  |  28 ++---
 nbd/server.c        | 319 +++++++++++++++++-----------------------------------
 6 files changed, 172 insertions(+), 289 deletions(-)

-- 
2.11.1