Merge branch 'master' into gfs2

5 files changed, 22 insertions, 13 deletions

diff --git a/net/sctp/input.c b/net/sctp/input.c
index 03f65de75d8..64f63010253 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -218,12 +218,6 @@ int sctp_rcv(struct sk_buff *skb)
 		}
 	}
 
-	/* SCTP seems to always need a timestamp right now (FIXME) */
-	if (skb->tstamp.off_sec == 0) {
-		__net_timestamp(skb);
-		sock_enable_timestamp(sk); 
-	}
-
 	if (!xfrm_policy_check(sk, XFRM_POLICY_IN, skb, family))
 		goto discard_release;
 	nf_reset(skb);
@@ -388,7 +382,7 @@ void sctp_icmp_frag_needed(struct sock *sk, struct sctp_association *asoc,
 			 * pmtu discovery on this transport.
 			 */
 			t->pathmtu = SCTP_DEFAULT_MINSEGMENT;
-			t->param_flags = (t->param_flags & ~SPP_HB) |
+			t->param_flags = (t->param_flags & ~SPP_PMTUD) |
 				SPP_PMTUD_DISABLE;
 		} else {
 			t->pathmtu = pmtu;
diff --git a/net/sctp/output.c b/net/sctp/output.c
index cdc5a393676..3ef4351dd95 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -633,7 +633,7 @@ static sctp_xmit_t sctp_packet_append_data(struct sctp_packet *packet,
 		 * data will fit or delay in hopes of bundling a full
 		 * sized packet.
 		 */
-		if (len < asoc->pathmtu - packet->overhead) {
+		if (len < asoc->frag_point) {
 			retval = SCTP_XMIT_NAGLE_DELAY;
 			goto finish;
 		}
@@ -645,7 +645,13 @@ static sctp_xmit_t sctp_packet_append_data(struct sctp_packet *packet,
 	/* Keep track of how many bytes are in flight to the receiver. */
 	asoc->outqueue.outstanding_bytes += datasize;
 
-	/* Update our view of the receiver's rwnd. */
+	/* Update our view of the receiver's rwnd. Include sk_buff overhead
+	 * while updating peer.rwnd so that it reduces the chances of a
+	 * receiver running out of receive buffer space even when receive
+	 * window is still open. This can happen when a sender is sending
+	 * sending small messages.
+	 */
+	datasize += sizeof(struct sk_buff);
 	if (datasize < rwnd)
 		rwnd -= datasize;
 	else
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index 37074a39ecb..739582415bf 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -416,7 +416,8 @@ void sctp_retransmit_mark(struct sctp_outq *q,
 			 * (Section 7.2.4)), add the data size of those
 			 * chunks to the rwnd.
 			 */
-			q->asoc->peer.rwnd += sctp_data_size(chunk);
+			q->asoc->peer.rwnd += (sctp_data_size(chunk) +
+						sizeof(struct sk_buff));
 			q->outstanding_bytes -= sctp_data_size(chunk);
 			transport->flight_size -= sctp_data_size(chunk);
 
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 7745bdea781..507dff72c58 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -1447,8 +1447,16 @@ no_hmac:
 	/* Check to see if the cookie is stale.  If there is already
 	 * an association, there is no need to check cookie's expiration
 	 * for init collision case of lost COOKIE ACK.
+	 * If skb has been timestamped, then use the stamp, otherwise
+	 * use current time.  This introduces a small possibility that
+	 * that a cookie may be considered expired, but his would only slow
+	 * down the new association establishment instead of every packet.
 	 */
-	skb_get_timestamp(skb, &tv);
+	if (sock_flag(ep->base.sk, SOCK_TIMESTAMP))
+		skb_get_timestamp(skb, &tv);
+	else
+		do_gettimeofday(&tv);
+
 	if (!asoc && tv_lt(bear_cookie->expiration, tv)) {
 		__u16 len;
 		/*
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 79c3e072cf2..3fe906d6506 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -3084,8 +3084,8 @@ SCTP_STATIC int sctp_init_sock(struct sock *sk)
 	 */
 	sp->disable_fragments = 0;
 
-	/* Turn on/off any Nagle-like algorithm.  */
-	sp->nodelay           = 1;
+	/* Enable Nagle algorithm by default.  */
+	sp->nodelay           = 0;
 
 	/* Enable by default. */
 	sp->v4mapped          = 1;