1 #include <linux/spinlock.h>
2 #include <linux/list.h>
3 #include <linux/module.h>
4 #include <target/iscsi/iscsi_transport.h>
6 static LIST_HEAD(g_transport_list
);
7 static DEFINE_MUTEX(transport_mutex
);
9 struct iscsit_transport
*iscsit_get_transport(int type
)
11 struct iscsit_transport
*t
;
13 mutex_lock(&transport_mutex
);
14 list_for_each_entry(t
, &g_transport_list
, t_node
) {
15 if (t
->transport_type
== type
) {
16 if (t
->owner
&& !try_module_get(t
->owner
)) {
19 mutex_unlock(&transport_mutex
);
23 mutex_unlock(&transport_mutex
);
28 void iscsit_put_transport(struct iscsit_transport
*t
)
33 int iscsit_register_transport(struct iscsit_transport
*t
)
35 INIT_LIST_HEAD(&t
->t_node
);
37 mutex_lock(&transport_mutex
);
38 list_add_tail(&t
->t_node
, &g_transport_list
);
39 mutex_unlock(&transport_mutex
);
41 pr_debug("Registered iSCSI transport: %s\n", t
->name
);
45 EXPORT_SYMBOL(iscsit_register_transport
);
47 void iscsit_unregister_transport(struct iscsit_transport
*t
)
49 mutex_lock(&transport_mutex
);
51 mutex_unlock(&transport_mutex
);
53 pr_debug("Unregistered iSCSI transport: %s\n", t
->name
);
55 EXPORT_SYMBOL(iscsit_unregister_transport
);