IB/rdmavt, IB/qib, IB/hfi1: Use new QP put get routines

This improves readability and hides the reference count
mechanism from the client drivers.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/hw/hfi1/verbs_txreq.c b/drivers/infiniband/hw/hfi1/verbs_txreq.c
index d8fb056..094ab82 100644
--- a/drivers/infiniband/hw/hfi1/verbs_txreq.c
+++ b/drivers/infiniband/hw/hfi1/verbs_txreq.c
@@ -109,7 +109,7 @@
 			qp->s_flags |= RVT_S_WAIT_TX;
 			list_add_tail(&priv->s_iowait.list, &dev->txwait);
 			trace_hfi1_qpsleep(qp, RVT_S_WAIT_TX);
-			atomic_inc(&qp->refcount);
+			rvt_get_qp(qp);
 		}
 		qp->s_flags &= ~RVT_S_BUSY;
 	}