First avoid repeated request completion for nvmf_fail_nonready_command.
Second avoid IO error and repeated request completion for queue_rq.

V2:
	- use "switch" instead "if" to check return status
	
Chao Leng (6):
  blk-mq: introduce blk_mq_set_request_complete
  nvme-core: introduce complete failed request
  nvme-fabrics: avoid repeated request completion for
    nvmf_fail_nonready_command
  nvme-rdma: avoid IO error and repeated request completion
  nvme-tcp: avoid IO error and repeated request completion
  nvme-fc: avoid IO error and repeated request completion

 drivers/nvme/host/fabrics.c |  4 +---
 drivers/nvme/host/fc.c      |  6 ++++--
 drivers/nvme/host/nvme.h    | 21 +++++++++++++++++++++
 drivers/nvme/host/rdma.c    |  2 +-
 drivers/nvme/host/tcp.c     |  2 +-
 include/linux/blk-mq.h      |  5 +++++
 6 files changed, 33 insertions(+), 7 deletions(-)

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2.16.4