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 <dhowells@redhat.com>

parent 8782def2

net/rxrpc/input.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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));