[ARM] Feroceon: speed up flushing of the entire cache

[linux-2.6] / net / sctp / associola.c

diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index b4cd2b71953fdf66ae75bcc5c80d9e3e7d5558fb..024c3ebd9661b946897bebc9e3819013fa2c4000 100644 (file)
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -474,6 +474,15 @@ static void sctp_association_destroy(struct sctp_association *asoc)
 void sctp_assoc_set_primary(struct sctp_association *asoc,
                            struct sctp_transport *transport)
 {
+       int changeover = 0;
+
+       /* it's a changeover only if we already have a primary path
+        * that we are changing
+        */
+       if (asoc->peer.primary_path != NULL &&
+           asoc->peer.primary_path != transport)
+               changeover = 1 ;
+
        asoc->peer.primary_path = transport;
 
        /* Set a default msg_name for events. */
@@ -499,12 +508,12 @@ void sctp_assoc_set_primary(struct sctp_association *asoc,
         * double switch to the same destination address.
         */
        if (transport->cacc.changeover_active)
-               transport->cacc.cycling_changeover = 1;
+               transport->cacc.cycling_changeover = changeover;
 
        /* 2) The sender MUST set CHANGEOVER_ACTIVE to indicate that
         * a changeover has occurred.
         */
-       transport->cacc.changeover_active = 1;
+       transport->cacc.changeover_active = changeover;
 
        /* 3) The sender MUST store the next TSN to be sent in
         * next_tsn_at_change.
@@ -1203,6 +1212,9 @@ void sctp_assoc_update_retran_path(struct sctp_association *asoc)
        struct list_head *head = &asoc->peer.transport_addr_list;
        struct list_head *pos;
 
+       if (asoc->peer.transport_count == 1)
+               return;
+
        /* Find the next transport in a round-robin fashion. */
        t = asoc->peer.retran_path;
        pos = &t->transports;
@@ -1217,6 +1229,15 @@ void sctp_assoc_update_retran_path(struct sctp_association *asoc)
 
                t = list_entry(pos, struct sctp_transport, transports);
 
+               /* We have exhausted the list, but didn't find any
+                * other active transports.  If so, use the next
+                * transport.
+                */
+               if (t == asoc->peer.retran_path) {
+                       t = next;
+                       break;
+               }
+
                /* Try to find an active transport. */
 
                if ((t->state == SCTP_ACTIVE) ||
@@ -1229,15 +1250,6 @@ void sctp_assoc_update_retran_path(struct sctp_association *asoc)
                        if (!next)
                                next = t;
                }
-
-               /* We have exhausted the list, but didn't find any
-                * other active transports.  If so, use the next
-                * transport.
-                */
-               if (t == asoc->peer.retran_path) {
-                       t = next;
-                       break;
-               }
        }
 
        asoc->peer.retran_path = t;