From 0851115090a3eb9585d6a804a61e47f3d89ac2a8 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 30 Sep 2016 09:33:27 +0100 Subject: [PATCH] rxrpc: Reduce ssthresh to peer's receive window When we receive an ACK from the peer that tells us what the peer's receive window (rwind) is, we should reduce ssthresh to rwind if rwind is smaller than ssthresh. Signed-off-by: David Howells --- net/rxrpc/input.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index 21746f0f7ae0..7993473e56bb 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -658,6 +658,8 @@ static void rxrpc_input_ackinfo(struct rxrpc_call *call, struct sk_buff *skb, if (rwind > RXRPC_RXTX_BUFF_SIZE - 1) rwind = RXRPC_RXTX_BUFF_SIZE - 1; call->tx_winsize = rwind; + if (call->cong_ssthresh > rwind) + call->cong_ssthresh = rwind; mtu = min(ntohl(ackinfo->rxMTU), ntohl(ackinfo->maxMTU));