target: make ->shutdown_session optional

Turns out the template and thus many drivers got the return value wrong:
0 means the fabrics driver needs to put a session reference, which no
driver except for the iSCSI target drivers did.  Fortunately none of these
drivers supports explicit Node ACLs, so the bug was harmless.

Even without that only qla2xxx and iscsi every did real work in
shutdown_session, so get rid of the boilerplate code in all other
drivers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Christoph Hellwig
2016-05-02 15:45:21 +02:00
committed by Nicholas Bellinger
parent fba81f8831
commit 22d11759a4
12 changed files with 4 additions and 66 deletions

View File

@@ -1290,11 +1290,6 @@ static void usbg_release_cmd(struct se_cmd *se_cmd)
percpu_ida_free(&se_sess->sess_tag_pool, se_cmd->map_tag);
}
static int usbg_shutdown_session(struct se_session *se_sess)
{
return 0;
}
static void usbg_close_session(struct se_session *se_sess)
{
}
@@ -1735,7 +1730,6 @@ static const struct target_core_fabric_ops usbg_ops = {
.tpg_check_prod_mode_write_protect = usbg_check_false,
.tpg_get_inst_index = usbg_tpg_get_inst_index,
.release_cmd = usbg_release_cmd,
.shutdown_session = usbg_shutdown_session,
.close_session = usbg_close_session,
.sess_get_index = usbg_sess_get_index,
.sess_get_initiator_sid = NULL,