Commit d0ce9291 authored by Vlad Yasevich's avatar Vlad Yasevich
Browse files

SCTP: Do not retransmit chunks that are newer then rtt.

When performing a retransmit, do not include the chunk if
it was sent less then 1 rtt ago.  The reason is that we
may receive the SACK very soon and wouldn't retransmit.
Suggested by Randy Stewart.
Signed-off-by: default avatarVlad Yasevich <>
parent cc75689a
......@@ -421,6 +421,13 @@ void sctp_retransmit_mark(struct sctp_outq *q,
if ((fast_retransmit && (chunk->fast_retransmit > 0)) ||
(!fast_retransmit && !chunk->tsn_gap_acked)) {
/* If this chunk was sent less then 1 rto ago, do not
* retransmit this chunk, but give the peer time
* to acknowlege it.
if ((jiffies - chunk->sent_at) < transport->rto)
/* RFC 2960 6.2.1 Processing a Received SACK
* C) Any time a DATA chunk is marked for
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