IB/iser: Seperate iser_conn and iscsi_endpoint storage space
iser connection needs asynchronous cleanup completions which are
triggered in ep_disconnect. As a result we are keeping the
corresponding iscsi_endpoint structure hanging for no good reason. In
order to avoid that, we seperate iser_conn from iscsi_endpoint storage
space to have their destruction being independent.
iscsi_endpoint will be destroyed at ep_disconnect stage, while the
iser connection will wait for asynchronous completions to be released
in an orderly fashion.
Signed-off-by: Ariel Nahum <arieln@mellanox.com>
Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 1a53fd2..d7acd4b 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -596,19 +596,28 @@
struct iser_conn *ib_conn;
struct iscsi_endpoint *ep;
- ep = iscsi_create_endpoint(sizeof(*ib_conn));
+ ep = iscsi_create_endpoint(0);
if (!ep)
return ERR_PTR(-ENOMEM);
- ib_conn = ep->dd_data;
+ ib_conn = kzalloc(sizeof(*ib_conn), GFP_KERNEL);
+ if (!ib_conn) {
+ err = -ENOMEM;
+ goto failure;
+ }
+
+ ep->dd_data = ib_conn;
ib_conn->ep = ep;
iser_conn_init(ib_conn);
err = iser_connect(ib_conn, NULL, dst_addr, non_blocking);
if (err)
- return ERR_PTR(err);
+ goto failure;
return ep;
+failure:
+ iscsi_destroy_endpoint(ep);
+ return ERR_PTR(err);
}
static int
@@ -658,6 +667,7 @@
} else {
iser_conn_release(ib_conn);
}
+ iscsi_destroy_endpoint(ep);
}
static umode_t iser_attr_is_visible(int param_type, int param)