target/linux/generic/patches-3.3/080-prot-release-cb.patch

   1 This was added in commit 46d3ceabd8d98ed0ad10f20c595ca784e34786c5 (tcp:
   2 TCP Small Queues) but we need it for pppoatm too.
   3
   4 --- a/include/net/sock.h
   5 +++ b/include/net/sock.h
   6 @@ -810,6 +810,8 @@ struct proto {
   7         int                     (*backlog_rcv) (struct sock *sk,
   8                                                 struct sk_buff *skb);
   9
  10 +       void            (*release_cb)(struct sock *sk);
  11 +
  12         /* Keeping track of sk's, looking them up, and port selection methods. */
  13         void                    (*hash)(struct sock *sk);
  14         void                    (*unhash)(struct sock *sk);
  15 --- a/net/core/sock.c
  16 +++ b/net/core/sock.c
  17 @@ -2138,6 +2138,10 @@ void release_sock(struct sock *sk)
  18         spin_lock_bh(&sk->sk_lock.slock);
  19         if (sk->sk_backlog.tail)
  20                 __release_sock(sk);
  21 +
  22 +       if (sk->sk_prot->release_cb)
  23 +               sk->sk_prot->release_cb(sk);
  24 +
  25         sk->sk_lock.owned = 0;
  26         if (waitqueue_active(&sk->sk_lock.wq))
  27                 wake_up(&sk->sk_lock.wq);