linux-kernel - [PATCH 4.14 026/140] scsi: qla2xxx: Move session delete to driver work queue

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Message-Id: <20180313152459.771533935@linuxfoundation.org>
Date:   Tue, 13 Mar 2018 16:23:49 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Quinn Tran <quinn.tran@...ium.com>,
        Himanshu Madhani <himanshu.madhani@...ium.com>,
        Hannes Reinecke <hare@...e.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
Subject: [PATCH 4.14 026/140] scsi: qla2xxx: Move session delete to driver work queue

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

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

From: Quinn Tran <quinn.tran@...ium.com>

commit a01c77d2cbc45ba527e884e5c30363a1200a4130 upstream.

Move session delete from system work queue to driver's work queue for in
time processing.

Fixes: 726b85487067d ("qla2xxx: Add framework for async fabric discovery")
Cc: <stable@...r.kernel.org> # 4.10+
Signed-off-by: Quinn Tran <quinn.tran@...ium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@...ium.com>
Reviewed-by: Hannes Reinecke <hare@...e.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/scsi/qla2xxx/qla_os.c     |    3 ++-
 drivers/scsi/qla2xxx/qla_target.c |    3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -3177,10 +3177,11 @@ qla2x00_probe_one(struct pci_dev *pdev,
 	    host->can_queue, base_vha->req,
 	    base_vha->mgmt_svr_loop_id, host->sg_tablesize);
 
+	ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 0);
+
 	if (ha->mqenable) {
 		bool mq = false;
 		bool startit = false;
-		ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 0);
 
 		if (QLA_TGT_MODE_ENABLED()) {
 			mq = true;
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -1205,7 +1205,8 @@ void qlt_schedule_sess_for_deletion(stru
 	ql_dbg(ql_dbg_tgt, sess->vha, 0xe001,
 	    "Scheduling sess %p for deletion\n", sess);
 
-	schedule_work(&sess->del_work);
+	INIT_WORK(&sess->del_work, qla24xx_delete_sess_fn);
+	queue_work(sess->vha->hw->wq, &sess->del_work);
 }
 
 void qlt_schedule_sess_for_deletion_lock(struct fc_port *sess)