dccp/tcp: do not inherit mc_list from parent

[pandora-kernel.git] / net / ipv4 / inet_connection_sock.c

diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index c14d88a..a6988e7 100644 (file)
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -604,6 +604,8 @@ struct sock *inet_csk_clone(struct sock *sk, const struct request_sock *req,
                inet_sk(newsk)->inet_sport = inet_rsk(req)->loc_port;
                newsk->sk_write_space = sk_stream_write_space;
 
+               inet_sk(newsk)->mc_list = NULL;
+
                newicsk->icsk_retransmits = 0;
                newicsk->icsk_backoff     = 0;
                newicsk->icsk_probes_out  = 0;
@@ -647,6 +649,22 @@ void inet_csk_destroy_sock(struct sock *sk)
 }
 EXPORT_SYMBOL(inet_csk_destroy_sock);
 
+/* This function allows to force a closure of a socket after the call to
+ * tcp/dccp_create_openreq_child().
+ */
+void inet_csk_prepare_forced_close(struct sock *sk)
+{
+       /* sk_clone_lock locked the socket and set refcnt to 2 */
+       bh_unlock_sock(sk);
+       sock_put(sk);
+
+       /* The below has to be done to allow calling inet_csk_destroy_sock */
+       sock_set_flag(sk, SOCK_DEAD);
+       percpu_counter_inc(sk->sk_prot->orphan_count);
+       inet_sk(sk)->inet_num = 0;
+}
+EXPORT_SYMBOL(inet_csk_prepare_forced_close);
+
 int inet_csk_listen_start(struct sock *sk, const int nr_table_entries)
 {
        struct inet_sock *inet = inet_sk(sk);