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Message-Id: <20180823074958.253162757@linuxfoundation.org>
Date:   Thu, 23 Aug 2018 09:51:55 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Vijay Immanuel <vijayi@...alasystems.com>,
        Yonatan Cohen <yonatanc@...lanox.com>,
        Jason Gunthorpe <jgg@...lanox.com>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.17 049/324] IB/rxe: Fix missing completion for mem_reg work requests

4.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Vijay Immanuel <vijayi@...alasystems.com>

[ Upstream commit 375dc53d032fc11e98036b5f228ad13f7c5933f5 ]

Run the completer task to post a work completion after processing
a memory registration or invalidate work request. This covers the
case where the memory registration or invalidate was the last work
request posted to the qp.

Signed-off-by: Vijay Immanuel <vijayi@...alasystems.com>
Reviewed-by: Yonatan Cohen <yonatanc@...lanox.com>
Signed-off-by: Jason Gunthorpe <jgg@...lanox.com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/infiniband/sw/rxe/rxe_req.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/infiniband/sw/rxe/rxe_req.c
+++ b/drivers/infiniband/sw/rxe/rxe_req.c
@@ -645,6 +645,9 @@ next_wqe:
 		} else {
 			goto exit;
 		}
+		if ((wqe->wr.send_flags & IB_SEND_SIGNALED) ||
+		    qp->sq_sig_type == IB_SIGNAL_ALL_WR)
+			rxe_run_task(&qp->comp.task, 1);
 		qp->req.wqe_index = next_index(qp->sq.queue,
 						qp->req.wqe_index);
 		goto next_wqe;


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