[PATCH 3.2 15/79] l2tp: purge session reorder queue on delete

Ben Hutchings
2018-02-11T04:33:40Z

From: Tom Parkin <tparkin@katalix.com>

commit 4c6e2fd35460208596fa099ee0750a4b0438aa5c upstream.

Add calls to l2tp_session_queue_purge as a part of l2tp_tunnel_closeall
and l2tp_session_delete. Pseudowire implementations which are deleted only
via. l2tp_core l2tp_session_delete calls can dispense with their own code for
flushing the reorder queue.

Signed-off-by: Tom Parkin <tparkin@katalix.com>
Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
net/l2tp/l2tp_core.c | 4 ++++
1 file changed, 4 insertions(+)

--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -1347,6 +1347,8 @@ again:
synchronize_rcu();
}

+ l2tp_session_queue_purge(session);
+
if (session->session_close != NULL)
(*session->session_close)(session);

@@ -1669,6 +1671,8 @@ EXPORT_SYMBOL_GPL(l2tp_session_free);
*/
int l2tp_session_delete(struct l2tp_session *session)
{
+ l2tp_session_queue_purge(session);
+
if (session->session_close != NULL)
(*session->session_close)(session);