Merge tag 'nfs-rdma-4.5' of git://git.linux-nfs.org/projects/anna/nfs-rdma

NFS: NFSoRDMA Client Side Changes

These patches mostly fix send queue ordering issues inside the NFSoRDMA
client, but there are also two patches from Dan Carpenter fixing up smatch
warnings.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

* tag 'nfs-rdma-4.5' of git://git.linux-nfs.org/projects/anna/nfs-rdma:
  xprtrdma: Revert commit e7104a2a ('xprtrdma: Cap req_cqinit').
  xprtrdma: Invalidate in the RPC reply handler
  xprtrdma: Add ro_unmap_sync method for all-physical registration
  xprtrdma: Add ro_unmap_sync method for FMR
  xprtrdma: Add ro_unmap_sync method for FRWR
  xprtrdma: Introduce ro_unmap_sync method
  xprtrdma: Move struct ib_send_wr off the stack
  xprtrdma: Disable RPC/RDMA backchannel debugging messages
  xprtrdma: xprt_rdma_free() must not release backchannel reqs
  xprtrdma: Fix additional uses of spin_lock_irqsave(rb_lock)
  xprtrdma: checking for NULL instead of IS_ERR()
  xprtrdma: clean up some curly braces