diff options
Diffstat (limited to 'net/l2tp/l2tp_debugfs.c')
| -rw-r--r-- | net/l2tp/l2tp_debugfs.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/net/l2tp/l2tp_debugfs.c b/net/l2tp/l2tp_debugfs.c index bca75bef8282..acf6e1343b88 100644 --- a/net/l2tp/l2tp_debugfs.c +++ b/net/l2tp/l2tp_debugfs.c @@ -120,24 +120,21 @@ static void l2tp_dfs_seq_stop(struct seq_file *p, void *v) static void l2tp_dfs_seq_tunnel_show(struct seq_file *m, void *v) { struct l2tp_tunnel *tunnel = v; + struct l2tp_session *session; int session_count = 0; int hash; - struct hlist_node *walk; - struct hlist_node *tmp; - read_lock_bh(&tunnel->hlist_lock); + rcu_read_lock_bh(); for (hash = 0; hash < L2TP_HASH_SIZE; hash++) { - hlist_for_each_safe(walk, tmp, &tunnel->session_hlist[hash]) { - struct l2tp_session *session; - - session = hlist_entry(walk, struct l2tp_session, hlist); + hlist_for_each_entry_rcu(session, &tunnel->session_hlist[hash], hlist) { + /* Session ID of zero is a dummy/reserved value used by pppol2tp */ if (session->session_id == 0) continue; session_count++; } } - read_unlock_bh(&tunnel->hlist_lock); + rcu_read_unlock_bh(); seq_printf(m, "\nTUNNEL %u peer %u", tunnel->tunnel_id, tunnel->peer_tunnel_id); if (tunnel->sock) { |