[PATCH v2 00/10] block/nbd: move connection code to separate file

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

Hi all!

This substitutes "[PATCH 00/14] nbd: move reconnect-thread to separate file"
Supersedes: <20210407104637.36033-1-vsementsov@virtuozzo.com>

I want to simplify block/nbd.c which is overcomplicated now. First step
is splitting out what could be split.

These series creates new file nbd/client-connection.c and part of
block/nbd.c is refactored and moved.

v2 is mostly rewritten. I decided move larger part, otherwise it doesn't
make real sense.

Note also that v2 is based on master. Patch 01 actually solves same
problem as
"[PATCH for-6.0] block/nbd: fix possible use after free of s->connect_thread" [*]
in a smarter way. So, if [*] goes first, this will be rebased to undo
[*].

Vladimir Sementsov-Ogievskiy (10):
  block/nbd: introduce NBDConnectThread reference counter
  block/nbd: BDRVNBDState: drop unused connect_err and connect_status
  util/async: aio_co_enter(): do aio_co_schedule in general case
  block/nbd: simplify waking of nbd_co_establish_connection()
  block/nbd: drop thr->state
  block/nbd: bs-independent interface for nbd_co_establish_connection()
  block/nbd: make nbd_co_establish_connection_cancel() bs-independent
  block/nbd: rename NBDConnectThread to NBDClientConnection
  block/nbd: introduce nbd_client_connection_new()
  nbd: move connection code from block/nbd to nbd/client-connection

 include/block/nbd.h     |  11 ++
 block/nbd.c             | 288 ++--------------------------------------
 nbd/client-connection.c | 192 +++++++++++++++++++++++++++
 util/async.c            |  11 +-
 nbd/meson.build         |   1 +
 5 files changed, 218 insertions(+), 285 deletions(-)
 create mode 100644 nbd/client-connection.c

-- 
2.29.2