From f7aec129a356ad049edddcb7e77b04a474fcf41f Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 14 Jun 2017 17:56:50 +0100 Subject: rxrpc: Cache the congestion window setting Cache the congestion window setting that was determined during a call's transmission phase when it finishes so that it can be used by the next call to the same peer, thereby shortcutting the slow-start algorithm. The value is stored in the rxrpc_peer struct and is accessed without locking. Each call takes the value that happens to be there when it starts and just overwrites the value when it finishes. Signed-off-by: David Howells Signed-off-by: David S. Miller --- net/rxrpc/call_accept.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net/rxrpc/call_accept.c') diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c index 0d4d84e8c074..dd30d74824b0 100644 --- a/net/rxrpc/call_accept.c +++ b/net/rxrpc/call_accept.c @@ -310,6 +310,7 @@ static struct rxrpc_call *rxrpc_alloc_incoming_call(struct rxrpc_sock *rx, rxrpc_see_call(call); call->conn = conn; call->peer = rxrpc_get_peer(conn->params.peer); + call->cong_cwnd = call->peer->cong_cwnd; return call; } -- cgit v1.2.3