[SCTP]: Fix receive buffer accounting.

[karo-tx-linux.git] / include / net / sctp / sctp.h

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index ee68a3124076554d08d3dcc45cf96fc801834253..764e3af5be9340c04b303b82416d29c6bbbc5e8e 100644 (file)
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -139,6 +139,7 @@ int sctp_inet_listen(struct socket *sock, int backlog);
 void sctp_write_space(struct sock *sk);
 unsigned int sctp_poll(struct file *file, struct socket *sock,
                poll_table *wait);
+void sctp_sock_rfree(struct sk_buff *skb);
 
 /*
  * sctp/primitive.c
@@ -444,6 +445,19 @@ static inline struct list_head *sctp_list_dequeue(struct list_head *list)
        return result;
 }
 
+/* SCTP version of skb_set_owner_r.  We need this one because
+ * of the way we have to do receive buffer accounting on bundled
+ * chunks.
+ */
+static inline void sctp_skb_set_owner_r(struct sk_buff *skb, struct sock *sk)
+{
+       struct sctp_ulpevent *event = sctp_skb2event(skb);
+
+       skb->sk = sk;
+       skb->destructor = sctp_sock_rfree;
+       atomic_add(event->rmem_len, &sk->sk_rmem_alloc);
+}
+
 /* Tests if the list has one and only one entry. */
 static inline int sctp_list_single_entry(struct list_head *head)
 {