[PATCH v3 0/3] migration/rdma: Misc RDMA migration fixes

This series fixes three RDMA migration issues.

v2->v3:
  - patch3: Change the type of return value to bool. And add an assert
            check to unexpected WR type. (Peter)

v1->v2:
  - patch1/2: Collect Reviewed-by
  - patch2: Add reproducation step and error logs in commit message
  - patch3: Wrap the post-send op and retry logic into a helper, and
            retry only once after draining a completion when the queue
            is full. (I believe ENOMEM is only recoverable in the
            queue-full case, so we retry once; it should succeed after
            a completion is drained. Any further ENOMEM is treated as
            non-recoverable.)

Yanfei Xu (3):
  migration/rdma: Fix write-side shutdown
  migration/rdma: Post initial receive before accepting
  migration/rdma: Retry control sends on full queue

 migration/rdma.c       | 89 +++++++++++++++++++++++++-----------------
 migration/trace-events |  2 +-
 2 files changed, 55 insertions(+), 36 deletions(-)

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2.20.1