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authorVlad Yasevich <vladislav.yasevich@hp.com>2010-04-30 22:41:09 -0400
committerVlad Yasevich <vladislav.yasevich@hp.com>2010-04-30 22:41:09 -0400
commitd9efc2231b28bc199f9de4dd594248b7341188e5 (patch)
treedd319348c6448a72fb10d1936edde25d8f593e9b /net/sctp
parentae19c54866450f6c6f79223ca7d37965859a54e1 (diff)
downloadblackbird-op-linux-d9efc2231b28bc199f9de4dd594248b7341188e5.tar.gz
blackbird-op-linux-d9efc2231b28bc199f9de4dd594248b7341188e5.zip
sctp: Do not force T3 timer on fast retransmissions.
We don't need to force the T3 timer any more and it's actually wrong to do as it causes too long of a delay. The timer will be started if one is not running, but if one is running, we leave it alone. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Diffstat (limited to 'net/sctp')
-rw-r--r--net/sctp/outqueue.c15
-rw-r--r--net/sctp/transport.c4
2 files changed, 5 insertions, 14 deletions
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index 4e551ba8998c..786c4ff97ae4 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -659,14 +659,6 @@ redo:
if (chunk->fast_retransmit == SCTP_NEED_FRTX)
chunk->fast_retransmit = SCTP_DONT_FRTX;
- /* Force start T3-rtx timer when fast retransmitting
- * the earliest outstanding TSN
- */
- if (!timer && fast_rtx &&
- ntohl(chunk->subh.data_hdr->tsn) ==
- asoc->ctsn_ack_point + 1)
- timer = 2;
-
q->empty = 0;
break;
}
@@ -871,7 +863,7 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
* sender MUST assure that at least one T3-rtx
* timer is running.
*/
- sctp_transport_reset_timers(transport, 0);
+ sctp_transport_reset_timers(transport);
}
break;
@@ -924,8 +916,7 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
rtx_timeout, &start_timer);
if (start_timer)
- sctp_transport_reset_timers(transport,
- start_timer-1);
+ sctp_transport_reset_timers(transport);
/* This can happen on COOKIE-ECHO resend. Only
* one chunk can get bundled with a COOKIE-ECHO.
@@ -1058,7 +1049,7 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
list_add_tail(&chunk->transmitted_list,
&transport->transmitted);
- sctp_transport_reset_timers(transport, 0);
+ sctp_transport_reset_timers(transport);
q->empty = 0;
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index be4d63d5a5cc..0ebb97fc98e0 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -195,7 +195,7 @@ static void sctp_transport_destroy(struct sctp_transport *transport)
/* Start T3_rtx timer if it is not already running and update the heartbeat
* timer. This routine is called every time a DATA chunk is sent.
*/
-void sctp_transport_reset_timers(struct sctp_transport *transport, int force)
+void sctp_transport_reset_timers(struct sctp_transport *transport)
{
/* RFC 2960 6.3.2 Retransmission Timer Rules
*
@@ -205,7 +205,7 @@ void sctp_transport_reset_timers(struct sctp_transport *transport, int force)
* address.
*/
- if (force || !timer_pending(&transport->T3_rtx_timer))
+ if (!timer_pending(&transport->T3_rtx_timer))
if (!mod_timer(&transport->T3_rtx_timer,
jiffies + transport->rto))
sctp_transport_hold(transport);
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