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path: root/drivers/scsi/qla2xxx/qla_target.c
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Diffstat (limited to 'drivers/scsi/qla2xxx/qla_target.c')
-rw-r--r--drivers/scsi/qla2xxx/qla_target.c56
1 files changed, 31 insertions, 25 deletions
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 8a44d1541..ca39deb4f 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -637,8 +637,10 @@ static void qlt_free_session_done(struct work_struct *work)
}
/* ha->tgt.sess_lock supposed to be held on entry */
-void qlt_unreg_sess(struct qla_tgt_sess *sess)
+static void qlt_release_session(struct kref *kref)
{
+ struct qla_tgt_sess *sess =
+ container_of(kref, struct qla_tgt_sess, sess_kref);
struct scsi_qla_host *vha = sess->vha;
if (sess->se_sess)
@@ -651,8 +653,16 @@ void qlt_unreg_sess(struct qla_tgt_sess *sess)
INIT_WORK(&sess->free_work, qlt_free_session_done);
schedule_work(&sess->free_work);
}
-EXPORT_SYMBOL(qlt_unreg_sess);
+void qlt_put_sess(struct qla_tgt_sess *sess)
+{
+ if (!sess)
+ return;
+
+ assert_spin_locked(&sess->vha->hw->tgt.sess_lock);
+ kref_put(&sess->sess_kref, qlt_release_session);
+}
+EXPORT_SYMBOL(qlt_put_sess);
static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd)
{
@@ -857,12 +867,9 @@ static void qlt_del_sess_work_fn(struct delayed_work *work)
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004,
"Timeout: sess %p about to be deleted\n",
sess);
- if (sess->se_sess) {
+ if (sess->se_sess)
ha->tgt.tgt_ops->shutdown_sess(sess);
- ha->tgt.tgt_ops->put_sess(sess);
- } else {
- qlt_unreg_sess(sess);
- }
+ qlt_put_sess(sess);
} else {
schedule_delayed_work(&tgt->sess_del_work,
sess->expires - elapsed);
@@ -917,7 +924,7 @@ static struct qla_tgt_sess *qlt_create_sess(
}
}
- kref_get(&sess->se_sess->sess_kref);
+ kref_get(&sess->sess_kref);
ha->tgt.tgt_ops->update_sess(sess, fcport->d_id, fcport->loop_id,
(fcport->flags & FCF_CONF_COMP_SUPPORTED));
@@ -947,6 +954,7 @@ static struct qla_tgt_sess *qlt_create_sess(
sess->s_id = fcport->d_id;
sess->loop_id = fcport->loop_id;
sess->local = local;
+ kref_init(&sess->sess_kref);
INIT_LIST_HEAD(&sess->del_list_entry);
/* Under normal circumstances we want to logout from firmware when
@@ -991,7 +999,7 @@ static struct qla_tgt_sess *qlt_create_sess(
* Take an extra reference to ->sess_kref here to handle qla_tgt_sess
* access across ->tgt.sess_lock reaquire.
*/
- kref_get(&sess->se_sess->sess_kref);
+ kref_get(&sess->sess_kref);
}
return sess;
@@ -1035,7 +1043,7 @@ void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport)
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return;
} else {
- kref_get(&sess->se_sess->sess_kref);
+ kref_get(&sess->sess_kref);
if (sess->deleted) {
qlt_undelete_sess(sess);
@@ -1060,7 +1068,7 @@ void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport)
fcport->port_name, sess->loop_id);
sess->local = 0;
}
- ha->tgt.tgt_ops->put_sess(sess);
+ qlt_put_sess(sess);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
}
@@ -3817,7 +3825,7 @@ static void __qlt_do_work(struct qla_tgt_cmd *cmd)
* Drop extra session reference from qla_tgt_handle_cmd_for_atio*(
*/
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
- ha->tgt.tgt_ops->put_sess(sess);
+ qlt_put_sess(sess);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return;
@@ -3836,7 +3844,7 @@ out_term:
spin_unlock_irqrestore(&ha->hardware_lock, flags);
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
- ha->tgt.tgt_ops->put_sess(sess);
+ qlt_put_sess(sess);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
}
@@ -3936,13 +3944,13 @@ static void qlt_create_sess_from_atio(struct work_struct *work)
if (!cmd) {
spin_lock_irqsave(&ha->hardware_lock, flags);
qlt_send_busy(vha, &op->atio, SAM_STAT_BUSY);
- ha->tgt.tgt_ops->put_sess(sess);
+ qlt_put_sess(sess);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
kfree(op);
return;
}
/*
- * __qlt_do_work() will call ha->tgt.tgt_ops->put_sess() to release
+ * __qlt_do_work() will call qlt_put_sess() to release
* the extra reference taken above by qlt_make_local_sess()
*/
__qlt_do_work(cmd);
@@ -4003,13 +4011,13 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
/*
* Do kref_get() before returning + dropping qla_hw_data->hardware_lock.
*/
- kref_get(&sess->se_sess->sess_kref);
+ kref_get(&sess->sess_kref);
cmd = qlt_get_tag(vha, sess, atio);
if (!cmd) {
ql_dbg(ql_dbg_io, vha, 0x3062,
"qla_target(%d): Allocation of cmd failed\n", vha->vp_idx);
- ha->tgt.tgt_ops->put_sess(sess);
+ qlt_put_sess(sess);
return -ENOMEM;
}
@@ -5911,7 +5919,7 @@ static void qlt_abort_work(struct qla_tgt *tgt,
goto out_term2;
}
- kref_get(&sess->se_sess->sess_kref);
+ kref_get(&sess->sess_kref);
}
spin_lock_irqsave(&ha->hardware_lock, flags);
@@ -5924,7 +5932,7 @@ static void qlt_abort_work(struct qla_tgt *tgt,
goto out_term;
spin_unlock_irqrestore(&ha->hardware_lock, flags);
- ha->tgt.tgt_ops->put_sess(sess);
+ qlt_put_sess(sess);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
return;
@@ -5935,8 +5943,7 @@ out_term:
qlt_24xx_send_abts_resp(vha, &prm->abts, FCP_TMF_REJECTED, false);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
- if (sess)
- ha->tgt.tgt_ops->put_sess(sess);
+ qlt_put_sess(sess);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
}
@@ -5976,7 +5983,7 @@ static void qlt_tmr_work(struct qla_tgt *tgt,
goto out_term;
}
- kref_get(&sess->se_sess->sess_kref);
+ kref_get(&sess->sess_kref);
}
iocb = a;
@@ -5988,14 +5995,13 @@ static void qlt_tmr_work(struct qla_tgt *tgt,
if (rc != 0)
goto out_term;
- ha->tgt.tgt_ops->put_sess(sess);
+ qlt_put_sess(sess);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return;
out_term:
qlt_send_term_exchange(vha, NULL, &prm->tm_iocb2, 1, 0);
- if (sess)
- ha->tgt.tgt_ops->put_sess(sess);
+ qlt_put_sess(sess);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-16 20:03:27 +0000