[PATCH 1/2] iscsi-target: Add iscsit_wait_conn() simulation for testing

[Nicholas Bellinger]

Simulate sess_tearing_down put in iscsit_queue_rsp following how
iser-target isert_put_cmd() works.

Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
---
 drivers/target/iscsi/iscsi_target.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index cc756a1..b05d8af 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -485,6 +485,22 @@ int iscsit_del_np(struct iscsi_np *np)
 
 int iscsit_queue_rsp(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
 {
+	if (conn && conn->sess && conn->sess->se_sess) {
+		struct se_session *se_sess = conn->sess->se_sess;
+
+		if (se_sess->sess_tearing_down) {
+			printk("Got iscsit_queue_rsp sess_tearing_down !!!!!!\n");
+
+			spin_lock_bh(&conn->cmd_lock);
+			if (!list_empty(&cmd->i_conn_node))
+				list_del_init(&cmd->i_conn_node);
+			spin_unlock_bh(&conn->cmd_lock);
+
+			transport_generic_free_cmd(&cmd->se_cmd, 0);
+			return 0;
+		}
+	}
+
 	return iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
 }
 EXPORT_SYMBOL(iscsit_queue_rsp);
@@ -667,6 +683,16 @@ static enum target_prot_op iscsit_get_sup_prot_ops(struct iscsi_conn *conn)
 	return TARGET_PROT_NORMAL;
 }
 
+static void iscsit_wait_conn(struct iscsi_conn *conn)
+{
+        if (conn->sess) {
+                target_sess_cmd_list_set_waiting(conn->sess->se_sess);
+                printk("se_sess: %p before target_wait_for_sess_cmds\n", conn->sess->se_sess);
+                target_wait_for_sess_cmds(conn->sess->se_sess);
+                printk("se_sess: %p after target_wait_for_sess_cmds\n", conn->sess->se_sess);
+        }
+}
+
 static struct iscsit_transport iscsi_target_transport = {
 	.name			= "iSCSI/TCP",
 	.transport_type		= ISCSI_TCP,
@@ -686,6 +712,7 @@ static enum target_prot_op iscsit_get_sup_prot_ops(struct iscsi_conn *conn)
 	.iscsit_xmit_pdu	= iscsit_xmit_pdu,
 	.iscsit_get_rx_pdu	= iscsit_get_rx_pdu,
 	.iscsit_get_sup_prot_ops = iscsit_get_sup_prot_ops,
+	.iscsit_wait_conn	= iscsit_wait_conn,
 };
 
 static int __init iscsi_target_init_module(void)
-- 
1.9.1


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