Merge tag 'io_uring-5.5-2020-01-16' of git://git.kernel.dk/linux-block

Pull io_uring fixes form Jens Axboe:

 - Ensure ->result is always set when IO is retried (Bijan)

 - In conjunction with the above, fix a regression in polled IO issue
   when retried (me/Bijan)

 - Don't setup async context for read/write fixed, otherwise we may
   wrongly map the iovec on retry (me)

 - Cancel io-wq work if we fail getting mm reference (me)

 - Ensure dependent work is always initialized correctly (me)

 - Only allow original task to submit IO, don't allow it from a passed
   ring fd (me)

* tag 'io_uring-5.5-2020-01-16' of git://git.kernel.dk/linux-block:
  io_uring: only allow submit from owning task
  io_uring: ensure workqueue offload grabs ring mutex for poll list
  io_uring: clear req->result always before issuing a read/write request
  io_uring: be consistent in assigning next work from handler
  io-wq: cancel work if we fail getting a mm reference
  io_uring: don't setup async context for read/write fixed

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