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[SCTP]: Remove temporary associations from backlog and hash.

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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>
This commit is contained in:
Vlad Yasevich 2006-10-30 18:55:11 -08:00 • committed by David S. Miller
parent 4f4443088b
commit de76e695a5
3 changed files with 24 additions and 4 deletions
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15
net/sctp/associola.c
View file

@ -346,11 +346,18 @@ void sctp_association_free(struct sctp_association *asoc)
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.