1 files changed, 12 insertions, 4 deletions

diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index b1ef3bc301a5..b45ed1f96921 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -321,6 +321,9 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a
         asoc->default_timetolive = sp->default_timetolive;
         asoc->default_rcv_context = sp->default_rcv_context;
 
+        /* SCTP_GET_ASSOC_STATS COUNTERS */
+        memset(&asoc->stats, 0, sizeof(struct sctp_priv_assoc_stats));
+
         /* AUTH related initializations */
         INIT_LIST_HEAD(&asoc->endpoint_shared_keys);
         err = sctp_auth_asoc_copy_shkeys(ep, asoc, gfp);
@@ -445,7 +448,7 @@ void sctp_association_free(struct sctp_association *asoc)
         /* Release the transport structures. */
         list_for_each_safe(pos, temp, &asoc->peer.transport_addr_list) {
                 transport = list_entry(pos, struct sctp_transport, transports);
-                list_del(pos);
+                list_del_rcu(pos);
                 sctp_transport_free(transport);
         }
 
@@ -565,7 +568,7 @@ void sctp_assoc_rm_peer(struct sctp_association *asoc,
                 sctp_assoc_update_retran_path(asoc);
 
         /* Remove this peer from the list. */
-        list_del(&peer->transports);
+        list_del_rcu(&peer->transports);
 
         /* Get the first transport of asoc. */
         pos = asoc->peer.transport_addr_list.next;
@@ -760,12 +763,13 @@ struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc,
 
         /* Set the transport's RTO.initial value */
         peer->rto = asoc->rto_initial;
+        sctp_max_rto(asoc, peer);
 
         /* Set the peer's active state. */
         peer->state = peer_state;
 
         /* Attach the remote transport to our asoc.  */
-        list_add_tail(&peer->transports, &asoc->peer.transport_addr_list);
+        list_add_tail_rcu(&peer->transports, &asoc->peer.transport_addr_list);
         asoc->peer.transport_count++;
 
         /* If we do not yet have a primary path, set one.  */
@@ -1152,8 +1156,12 @@ static void sctp_assoc_bh_rcv(struct work_struct *work)
                  */
                 if (sctp_chunk_is_data(chunk))
                         asoc->peer.last_data_from = chunk->transport;
-                else
+                else {
                         SCTP_INC_STATS(net, SCTP_MIB_INCTRLCHUNKS);
+                        asoc->stats.ictrlchunks++;
+                        if (chunk->chunk_hdr->type == SCTP_CID_SACK)
+                                asoc->stats.isacks++;
+                }
 
                 if (chunk->transport)
                         chunk->transport->last_time_heard = jiffies;