[SCTP]: Remove temporary associations from backlog and hash.
Every time SCTP creates a temporary association, the stack hashes it,
puts it on a list of endpoint associations and increments the backlog.
However, the lifetime of a temporary association is the processing time
of a current packet and it's destroyed after that. In fact, we don't
really want anyone else finding this association. There is no reason to
do this extra work.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 27329ce..ed0445f 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -346,11 +346,18 @@
struct list_head *pos, *temp;
int i;
- list_del(&asoc->asocs);
+ /* Only real associations count against the endpoint, so
+ * don't bother for if this is a temporary association.
+ */
+ if (!asoc->temp) {
+ list_del(&asoc->asocs);
- /* Decrement the backlog value for a TCP-style listening socket. */
- if (sctp_style(sk, TCP) && sctp_sstate(sk, LISTENING))
- sk->sk_ack_backlog--;
+ /* Decrement the backlog value for a TCP-style listening
+ * socket.
+ */
+ if (sctp_style(sk, TCP) && sctp_sstate(sk, LISTENING))
+ sk->sk_ack_backlog--;
+ }
/* Mark as dead, so other users can know this structure is
* going away.
