[PATCH 0/2] io: follow coroutine AioContext in qio_channel_yield()

[Stefan Hajnoczi <stefanha@redhat.com>]

The ongoing QEMU multi-queue block layer effort makes it possible for multiple
threads to process I/O in parallel. The nbd block driver is not compatible with
the multi-queue block layer yet because QIOChannel cannot be used easily from
coroutines running in multiple threads. This series changes the QIOChannel API
to make that possible.

Stefan Hajnoczi (2):
  io: check there are no qio_channel_yield() coroutines during
    ->finalize()
  io: follow coroutine AioContext in qio_channel_yield()

 include/io/channel.h             |  34 ++++++++-
 include/qemu/vhost-user-server.h |   1 +
 block/nbd.c                      |  11 +--
 io/channel-command.c             |  13 +++-
 io/channel-file.c                |  18 ++++-
 io/channel-null.c                |   3 +-
 io/channel-socket.c              |  18 ++++-
 io/channel-tls.c                 |   6 +-
 io/channel.c                     | 124 ++++++++++++++++++++++---------
 migration/channel-block.c        |   3 +-
 nbd/client.c                     |   2 +-
 nbd/server.c                     |  14 +---
 scsi/qemu-pr-helper.c            |   4 +-
 util/vhost-user-server.c         |  27 +++++--
 14 files changed, 195 insertions(+), 83 deletions(-)

-- 
2.41.0