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target: Add TFO->put_session() caller for HW fabric session shutdown

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This patch adds an optional target_core_fabric_ops->put_session() caller
within the existing target_put_session() code path.

This is required by tcm_qla2xxx code in order to invoke it's own fabric
specific session shutdown handler using se_session->sess_kref.

Signed-off-by: Joern Engel <joern@logfs.org>
Cc: Roland Dreier <roland@purestorage.com>
Cc: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Joern Engel 2012-05-18 13:57:19 -07:00 committed by Nicholas Bellinger
parent cfaf025112
commit 4149268e78
2 changed files with 8 additions and 1 deletions
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8
drivers/target/target_core_transport.c
View File

@ -315,7 +315,7 @@ void transport_register_session(
} }
EXPORT_SYMBOL(transport_register_session); EXPORT_SYMBOL(transport_register_session);
static void target_release_session(struct kref *kref) void target_release_session(struct kref *kref)
{ {
struct se_session *se_sess = container_of(kref, struct se_session *se_sess = container_of(kref,
struct se_session, sess_kref); struct se_session, sess_kref);
@ -332,6 +332,12 @@ EXPORT_SYMBOL(target_get_session);
void target_put_session(struct se_session *se_sess) void target_put_session(struct se_session *se_sess)
{ {
struct se_portal_group *tpg = se_sess->se_tpg;
if (tpg->se_tpg_tfo->put_session != NULL) {
tpg->se_tpg_tfo->put_session(se_sess);
return;
}
kref_put(&se_sess->sess_kref, target_release_session); kref_put(&se_sess->sess_kref, target_release_session);
} }
EXPORT_SYMBOL(target_put_session); EXPORT_SYMBOL(target_put_session);

1
include/target/target_core_fabric.h
View File

@ -47,6 +47,7 @@ struct target_core_fabric_ops {
*/ */
int (*check_stop_free)(struct se_cmd *); int (*check_stop_free)(struct se_cmd *);
void (*release_cmd)(struct se_cmd *); void (*release_cmd)(struct se_cmd *);
void (*put_session)(struct se_session *);
/* /*
* Called with spin_lock_bh(struct se_portal_group->session_lock held. * Called with spin_lock_bh(struct se_portal_group->session_lock held.
*/ */