| From | David Howells <> | Subject | [PATCH 01/41] rxrpc: Fix RTT determination to use PING ACKs as a source | Date | Thu, 9 Nov 2023 15:39:24 +0000 |
| |
Fix RTT determination to use a PING ACK that is in marked as being in response to a DATA packet as the response from which RTT can be calculated from in lieu of a REQUESTED ACK. The server may send the latter instead of the former.
Fixes: 4700c4d80b7b ("rxrpc: Fix loss of RTT samples due to interposed ACK") Signed-off-by: David Howells <dhowells@redhat.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: linux-afs@lists.infradead.org --- net/rxrpc/input.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index 030d64f282f3..fc0d404f3b91 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -806,6 +806,10 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb) rxrpc_complete_rtt_probe(call, skb->tstamp, acked_serial, ack_serial, rxrpc_rtt_rx_ping_response); break; + case RXRPC_ACK_PING: + if (acked_serial == 0) + break; + fallthrough; case RXRPC_ACK_REQUESTED: rxrpc_complete_rtt_probe(call, skb->tstamp, acked_serial, ack_serial, rxrpc_rtt_rx_requested_ack);
|