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Commit fc943f67 authored by David Howells's avatar David Howells
Browse files

rxrpc: Reduce the number of PING ACKs sent 



We don't want to send a PING ACK for every new incoming call as that just
adds to the network traffic.  Instead, we send a PING ACK to the first
three that we receive and then once per second thereafter.

This could probably be made adjustable in future.

Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
parent 0d4b103c

net/rxrpc/input.c

+5 −2
Original line number Diff line number Diff line
@@ -44,7 +44,10 @@ static void rxrpc_send_ping(struct rxrpc_call *call, struct sk_buff *skb, 
			    int skew)

{

	struct rxrpc_skb_priv *sp = rxrpc_skb(skb);

	ktime_t now = skb->tstamp;



	if (call->peer->rtt_usage < 3 ||

	    ktime_before(ktime_add_ms(call->peer->rtt_last_req, 1000), now))

		rxrpc_propose_ACK(call, RXRPC_ACK_PING, skew, sp->hdr.serial,

				  true, true);

}

net/rxrpc/call_event.c

+1 −1

File changed.

Contains only whitespace changes.