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authorChristoph Hellwig <hch@lst.de>2016-05-02 15:45:25 +0200
committerNicholas Bellinger <nab@linux-iscsi.org>2016-05-10 01:19:49 -0700
commitd94331fab6d4d48280a5cea646352db90777966d (patch)
tree8d4814eb16f6708d70113a4701253c502b7ab71a
parent44f33d0fb5a7181cc34529c211d7b5039d8a0a4b (diff)
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target: remove sess_kref and ->shutdown_session
Both of them are unused now that drivers handle any delayed session shutdown internally. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
-rw-r--r--drivers/target/target_core_tpg.c14
-rw-r--r--drivers/target/target_core_transport.c23
-rw-r--r--include/target/target_core_base.h1
-rw-r--r--include/target/target_core_fabric.h6
4 files changed, 3 insertions, 41 deletions
diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c
index a81a37045403..d99752c6cd60 100644
--- a/drivers/target/target_core_tpg.c
+++ b/drivers/target/target_core_tpg.c
@@ -340,26 +340,18 @@ static void target_shutdown_sessions(struct se_node_acl *acl)
{
struct se_session *sess;
unsigned long flags;
- int ret;
restart:
spin_lock_irqsave(&acl->nacl_sess_lock, flags);
list_for_each_entry(sess, &acl->acl_sess_list, sess_acl_list) {
if (sess->sess_tearing_down)
continue;
- if (!target_get_session(sess))
- continue;
list_del_init(&sess->sess_acl_list);
-
spin_unlock_irqrestore(&acl->nacl_sess_lock, flags);
- if (acl->se_tpg->se_tpg_tfo->shutdown_session)
- ret = acl->se_tpg->se_tpg_tfo->shutdown_session(sess);
- else
- ret = 1;
- target_put_session(sess);
- if (ret)
- target_put_session(sess);
+
+ if (acl->se_tpg->se_tpg_tfo->close_session)
+ acl->se_tpg->se_tpg_tfo->close_session(sess);
goto restart;
}
spin_unlock_irqrestore(&acl->nacl_sess_lock, flags);
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 2914d4c68fea..6c089afe553a 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -239,7 +239,6 @@ struct se_session *transport_init_session(enum target_prot_op sup_prot_ops)
INIT_LIST_HEAD(&se_sess->sess_cmd_list);
INIT_LIST_HEAD(&se_sess->sess_wait_list);
spin_lock_init(&se_sess->sess_cmd_lock);
- kref_init(&se_sess->sess_kref);
se_sess->sup_prot_ops = sup_prot_ops;
return se_sess;
@@ -430,28 +429,6 @@ target_alloc_session(struct se_portal_group *tpg,
}
EXPORT_SYMBOL(target_alloc_session);
-static void target_release_session(struct kref *kref)
-{
- struct se_session *se_sess = container_of(kref,
- struct se_session, sess_kref);
- struct se_portal_group *se_tpg = se_sess->se_tpg;
-
- if (se_tpg->se_tpg_tfo->close_session)
- se_tpg->se_tpg_tfo->close_session(se_sess);
-}
-
-int target_get_session(struct se_session *se_sess)
-{
- return kref_get_unless_zero(&se_sess->sess_kref);
-}
-EXPORT_SYMBOL(target_get_session);
-
-void target_put_session(struct se_session *se_sess)
-{
- kref_put(&se_sess->sess_kref, target_release_session);
-}
-EXPORT_SYMBOL(target_put_session);
-
ssize_t target_show_dynamic_sessions(struct se_portal_group *se_tpg, char *page)
{
struct se_session *se_sess;
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 1d4e1cb7f373..b316b44d03f3 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -602,7 +602,6 @@ struct se_session {
struct list_head sess_cmd_list;
struct list_head sess_wait_list;
spinlock_t sess_cmd_lock;
- struct kref sess_kref;
void *sess_cmd_map;
struct percpu_ida sess_tag_pool;
};
diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h
index 8ff6d40a294f..ec79da3b43df 100644
--- a/include/target/target_core_fabric.h
+++ b/include/target/target_core_fabric.h
@@ -50,10 +50,6 @@ struct target_core_fabric_ops {
*/
int (*check_stop_free)(struct se_cmd *);
void (*release_cmd)(struct se_cmd *);
- /*
- * Called with spin_lock_bh(struct se_portal_group->session_lock held.
- */
- int (*shutdown_session)(struct se_session *);
void (*close_session)(struct se_session *);
u32 (*sess_get_index)(struct se_session *);
/*
@@ -123,8 +119,6 @@ void __transport_register_session(struct se_portal_group *,
struct se_node_acl *, struct se_session *, void *);
void transport_register_session(struct se_portal_group *,
struct se_node_acl *, struct se_session *, void *);
-int target_get_session(struct se_session *);
-void target_put_session(struct se_session *);
ssize_t target_show_dynamic_sessions(struct se_portal_group *, char *);
void transport_free_session(struct se_session *);
void target_put_nacl(struct se_node_acl *);