From 4107b8a029995e4a2c928b395a12ebc67d8e3689 Mon Sep 17 00:00:00 2001 From: Mike Marciniszyn Date: Tue, 6 Sep 2016 04:34:21 -0700 Subject: [PATCH] IB/rdmavt: Add functions to get and release QP references This centralizes the function and improves code readability. Reviewed-by: Dennis Dalessandro Signed-off-by: Mike Marciniszyn Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- include/rdma/rdmavt_qp.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/include/rdma/rdmavt_qp.h b/include/rdma/rdmavt_qp.h index bd34d0b56bf7..2c5183ef0243 100644 --- a/include/rdma/rdmavt_qp.h +++ b/include/rdma/rdmavt_qp.h @@ -465,6 +465,25 @@ static inline struct rvt_rwqe *rvt_get_rwqe_ptr(struct rvt_rq *rq, unsigned n) rq->max_sge * sizeof(struct ib_sge)) * n); } +/** + * rvt_get_qp - get a QP reference + * @qp - the QP to hold + */ +static inline void rvt_get_qp(struct rvt_qp *qp) +{ + atomic_inc(&qp->refcount); +} + +/** + * rvt_put_qp - release a QP reference + * @qp - the QP to release + */ +static inline void rvt_put_qp(struct rvt_qp *qp) +{ + if (qp && atomic_dec_and_test(&qp->refcount)) + wake_up(&qp->wait); +} + /** * rvt_qp_wqe_reserve - reserve operation * @qp - the rvt qp -- 2.30.2