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Diffstat (limited to 'net/sctp/ulpevent.c')
-rw-r--r--net/sctp/ulpevent.c24
1 files changed, 7 insertions, 17 deletions
diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
index e049f41faa47..ba97f974f57c 100644
--- a/net/sctp/ulpevent.c
+++ b/net/sctp/ulpevent.c
@@ -52,19 +52,6 @@ static void sctp_ulpevent_receive_data(struct sctp_ulpevent *event,
struct sctp_association *asoc);
static void sctp_ulpevent_release_data(struct sctp_ulpevent *event);
-/* Stub skb destructor. */
-static void sctp_stub_rfree(struct sk_buff *skb)
-{
-/* WARNING: This function is just a warning not to use the
- * skb destructor. If the skb is shared, we may get the destructor
- * callback on some processor that does not own the sock_lock. This
- * was occuring with PACKET socket applications that were monitoring
- * our skbs. We can't take the sock_lock, because we can't risk
- * recursing if we do really own the sock lock. Instead, do all
- * of our rwnd manipulation while we own the sock_lock outright.
- */
-}
-
/* Initialize an ULP event from an given skb. */
SCTP_STATIC void sctp_ulpevent_init(struct sctp_ulpevent *event, int msg_flags)
{
@@ -111,15 +98,19 @@ static inline void sctp_ulpevent_set_owner(struct sctp_ulpevent *event,
*/
sctp_association_hold((struct sctp_association *)asoc);
skb = sctp_event2skb(event);
- skb->sk = asoc->base.sk;
event->asoc = (struct sctp_association *)asoc;
- skb->destructor = sctp_stub_rfree;
+ atomic_add(skb->truesize, &event->asoc->rmem_alloc);
+ skb_set_owner_r(skb, asoc->base.sk);
}
/* A simple destructor to give up the reference to the association. */
static inline void sctp_ulpevent_release_owner(struct sctp_ulpevent *event)
{
- sctp_association_put(event->asoc);
+ struct sctp_association *asoc = event->asoc;
+ struct sk_buff *skb = sctp_event2skb(event);
+
+ atomic_sub(skb->truesize, &asoc->rmem_alloc);
+ sctp_association_put(asoc);
}
/* Create and initialize an SCTP_ASSOC_CHANGE event.
@@ -922,7 +913,6 @@ done:
/* Free a ulpevent that has an owner. It includes releasing the reference
* to the owner, updating the rwnd in case of a DATA event and freeing the
* skb.
- * See comments in sctp_stub_rfree().
*/
void sctp_ulpevent_free(struct sctp_ulpevent *event)
{