[DCCP] CCID2: Initialize ssthresh to infinity
Initialize the slow-start threshold to infinity. This way, upon connection
initiation, slow-start will be exited only upon a packet loss. This patch will
allow connections to quickly gain speed.
Signed-off-by: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dccp/ccids/ccid2.c b/net/dccp/ccids/ccid2.c
index 54a6b7e..699a566 100644
--- a/net/dccp/ccids/ccid2.c
+++ b/net/dccp/ccids/ccid2.c
@@ -678,9 +678,12 @@
int seqcount = ccid2_seq_len;
int i;
- /* XXX init variables with proper values */
hctx->ccid2hctx_cwnd = 1;
- hctx->ccid2hctx_ssthresh = 10;
+ /* Initialize ssthresh to infinity. This means that we will exit the
+ * initial slow-start after the first packet loss. This is what we
+ * want.
+ */
+ hctx->ccid2hctx_ssthresh = ~0;
hctx->ccid2hctx_numdupack = 3;
/* XXX init ~ to window size... */