linux-kernel - [PATCH 3.19.y-ckt 085/170] iser-target: Separate flows for np listeners and connections cma events

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Message-Id: <1459558456-24452-86-git-send-email-kamal@canonical.com>
Date:	Fri,  1 Apr 2016 17:52:51 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Jenny Derzhavetz <jennyf@...lanox.com>,
	Sagi Grimberg <sagig@...lanox.com>,
	Nicholas Bellinger <nab@...ux-iscsi.org>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.19.y-ckt 085/170] iser-target: Separate flows for np listeners and connections cma events

3.19.8-ckt18 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Jenny Derzhavetz <jennyf@...lanox.com>

commit f81bf458208ef6d12b2fc08091204e3859dcdba4 upstream.

No need to restrict this check to specific events.

Signed-off-by: Jenny Derzhavetz <jennyf@...lanox.com>
Signed-off-by: Sagi Grimberg <sagig@...lanox.com>
Signed-off-by: Nicholas Bellinger <nab@...ux-iscsi.org>
[ kamal: backport to 4.2-stable: s/cm_id/np_cm_id/ ]
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/infiniband/ulp/isert/ib_isert.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 474dcd6..7ae6d0e 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -866,14 +866,9 @@ isert_disconnected_handler(struct rdma_cm_id *cma_id,
 			   enum rdma_cm_event_type event)
 {
 	struct isert_np *isert_np = cma_id->context;
-	struct isert_conn *isert_conn;
+	struct isert_conn *isert_conn = cma_id->qp->qp_context;
 	bool terminating = false;
 
-	if (isert_np->np_cm_id == cma_id)
-		return isert_np_cma_handler(cma_id->context, event);
-
-	isert_conn = cma_id->qp->qp_context;
-
 	mutex_lock(&isert_conn->conn_mutex);
 	terminating = (isert_conn->state == ISER_CONN_TERMINATING);
 	isert_conn_terminate(isert_conn);
@@ -911,11 +906,15 @@ isert_connect_error(struct rdma_cm_id *cma_id)
 static int
 isert_cma_handler(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
 {
+	struct isert_np *isert_np = cma_id->context;
 	int ret = 0;
 
 	isert_info("event %d status %d id %p np %p\n", event->event,
 		   event->status, cma_id, cma_id->context);
 
+	if (isert_np->np_cm_id == cma_id)
+		return isert_np_cma_handler(cma_id->context, event->event);
+
 	switch (event->event) {
 	case RDMA_CM_EVENT_CONNECT_REQUEST:
 		ret = isert_connect_request(cma_id, event);
-- 
2.7.4