/* A simple destructor to give up the reference to the association. */
static inline void sctp_ulpevent_release_owner(struct sctp_ulpevent *event)
{
struct sctp_association *asoc = event->asoc;
atomic_sub(event->rmem_len, &asoc->rmem_alloc);
sctp_association_put(asoc);
}
static void sctp_transport_destroy_rcu(struct rcu_head *head)
{
struct sctp_transport *transport;
transport = container_of(head, struct sctp_transport, rcu);
if (transport->asoc)
sctp_association_put(transport->asoc);
sctp_packet_free(&transport->packet);
dst_release(transport->dst);
kfree(transport);
SCTP_DBG_OBJCNT_DEC(transport);
}
void sctp_transport_free(struct sctp_transport *transport)
{
transport->dead = 1;
if (del_timer(&transport->hb_timer))
sctp_transport_put(transport);
if (timer_pending(&transport->T3_rtx_timer) &&
del_timer(&transport->T3_rtx_timer))
sctp_transport_put(transport);
if (timer_pending(&transport->proto_unreach_timer) &&
del_timer(&transport->proto_unreach_timer))
sctp_association_put(transport->asoc);
sctp_transport_put(transport);
}
/* This transport is no longer needed. Free up if possible, or
* delay until it last reference count.
*/
void sctp_transport_free(struct sctp_transport *transport)
{
transport->dead = 1;
/* Try to delete the heartbeat timer. */
if (del_timer(&transport->hb_timer))
sctp_transport_put(transport);
/* Delete the T3_rtx timer if it's active.
* There is no point in not doing this now and letting
* structure hang around in memory since we know
* the tranport is going away.
*/
if (del_timer(&transport->T3_rtx_timer))
sctp_transport_put(transport);
/* Delete the ICMP proto unreachable timer if it's active. */
if (del_timer(&transport->proto_unreach_timer))
sctp_association_put(transport->asoc);
sctp_transport_put(transport);
}
