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Diffstat (limited to 'net/sctp/ulpqueue.c')
-rw-r--r--net/sctp/ulpqueue.c26
1 files changed, 17 insertions, 9 deletions
diff --git a/net/sctp/ulpqueue.c b/net/sctp/ulpqueue.c
index ce469d648ffb..ec166d2bd2d9 100644
--- a/net/sctp/ulpqueue.c
+++ b/net/sctp/ulpqueue.c
@@ -141,7 +141,8 @@ int sctp_clear_pd(struct sock *sk, struct sctp_association *asoc)
*/
if (!skb_queue_empty(&sp->pd_lobby)) {
struct list_head *list;
- sctp_skb_list_tail(&sp->pd_lobby, &sk->sk_receive_queue);
+ skb_queue_splice_tail_init(&sp->pd_lobby,
+ &sk->sk_receive_queue);
list = (struct list_head *)&sctp_sk(sk)->pd_lobby;
INIT_LIST_HEAD(list);
return 1;
@@ -193,6 +194,7 @@ static int sctp_ulpq_clear_pd(struct sctp_ulpq *ulpq)
int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event)
{
struct sock *sk = ulpq->asoc->base.sk;
+ struct sctp_sock *sp = sctp_sk(sk);
struct sk_buff_head *queue, *skb_list;
struct sk_buff *skb = sctp_event2skb(event);
int clear_pd = 0;
@@ -210,7 +212,7 @@ int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event)
sk_incoming_cpu_update(sk);
}
/* Check if the user wishes to receive this event. */
- if (!sctp_ulpevent_is_enabled(event, &sctp_sk(sk)->subscribe))
+ if (!sctp_ulpevent_is_enabled(event, &sp->subscribe))
goto out_free;
/* If we are in partial delivery mode, post to the lobby until
@@ -218,7 +220,7 @@ int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event)
* the association the cause of the partial delivery.
*/
- if (atomic_read(&sctp_sk(sk)->pd_mode) == 0) {
+ if (atomic_read(&sp->pd_mode) == 0) {
queue = &sk->sk_receive_queue;
} else {
if (ulpq->pd_mode) {
@@ -230,7 +232,7 @@ int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event)
if ((event->msg_flags & MSG_NOTIFICATION) ||
(SCTP_DATA_NOT_FRAG ==
(event->msg_flags & SCTP_DATA_FRAG_MASK)))
- queue = &sctp_sk(sk)->pd_lobby;
+ queue = &sp->pd_lobby;
else {
clear_pd = event->msg_flags & MSG_EOR;
queue = &sk->sk_receive_queue;
@@ -241,10 +243,10 @@ int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event)
* can queue this to the receive queue instead
* of the lobby.
*/
- if (sctp_sk(sk)->frag_interleave)
+ if (sp->frag_interleave)
queue = &sk->sk_receive_queue;
else
- queue = &sctp_sk(sk)->pd_lobby;
+ queue = &sp->pd_lobby;
}
}
@@ -252,7 +254,7 @@ int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event)
* collected on a list.
*/
if (skb_list)
- sctp_skb_list_tail(skb_list, queue);
+ skb_queue_splice_tail_init(skb_list, queue);
else
__skb_queue_tail(queue, skb);
@@ -263,8 +265,10 @@ int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event)
if (clear_pd)
sctp_ulpq_clear_pd(ulpq);
- if (queue == &sk->sk_receive_queue)
+ if (queue == &sk->sk_receive_queue && !sp->data_ready_signalled) {
+ sp->data_ready_signalled = 1;
sk->sk_data_ready(sk);
+ }
return 1;
out_free:
@@ -1125,11 +1129,13 @@ void sctp_ulpq_abort_pd(struct sctp_ulpq *ulpq, gfp_t gfp)
{
struct sctp_ulpevent *ev = NULL;
struct sock *sk;
+ struct sctp_sock *sp;
if (!ulpq->pd_mode)
return;
sk = ulpq->asoc->base.sk;
+ sp = sctp_sk(sk);
if (sctp_ulpevent_type_enabled(SCTP_PARTIAL_DELIVERY_EVENT,
&sctp_sk(sk)->subscribe))
ev = sctp_ulpevent_make_pdapi(ulpq->asoc,
@@ -1139,6 +1145,8 @@ void sctp_ulpq_abort_pd(struct sctp_ulpq *ulpq, gfp_t gfp)
__skb_queue_tail(&sk->sk_receive_queue, sctp_event2skb(ev));
/* If there is data waiting, send it up the socket now. */
- if (sctp_ulpq_clear_pd(ulpq) || ev)
+ if ((sctp_ulpq_clear_pd(ulpq) || ev) && !sp->data_ready_signalled) {
+ sp->data_ready_signalled = 1;
sk->sk_data_ready(sk);
+ }
}