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Diffstat (limited to 'net/rxrpc')
-rw-r--r--net/rxrpc/call_event.c15
-rw-r--r--net/rxrpc/output.c7
2 files changed, 17 insertions, 5 deletions
diff --git a/net/rxrpc/call_event.c b/net/rxrpc/call_event.c
index 1abdef15debc..cf9799be4286 100644
--- a/net/rxrpc/call_event.c
+++ b/net/rxrpc/call_event.c
@@ -498,9 +498,18 @@ bool rxrpc_input_call_event(struct rxrpc_call *call, struct sk_buff *skb)
rxrpc_send_ACK(call, RXRPC_ACK_IDLE, 0,
rxrpc_propose_ack_rx_idle);
- if (atomic_read(&call->ackr_nr_unacked) > 2)
- rxrpc_send_ACK(call, RXRPC_ACK_IDLE, 0,
- rxrpc_propose_ack_input_data);
+ if (atomic_read(&call->ackr_nr_unacked) > 2) {
+ if (call->peer->rtt_count < 3)
+ rxrpc_send_ACK(call, RXRPC_ACK_PING, 0,
+ rxrpc_propose_ack_ping_for_rtt);
+ else if (ktime_before(ktime_add_ms(call->peer->rtt_last_req, 1000),
+ ktime_get_real()))
+ rxrpc_send_ACK(call, RXRPC_ACK_PING, 0,
+ rxrpc_propose_ack_ping_for_old_rtt);
+ else
+ rxrpc_send_ACK(call, RXRPC_ACK_IDLE, 0,
+ rxrpc_propose_ack_input_data);
+ }
/* Make sure the timer is restarted */
if (!__rxrpc_call_is_complete(call)) {
diff --git a/net/rxrpc/output.c b/net/rxrpc/output.c
index a9746be29634..98b5d0db7761 100644
--- a/net/rxrpc/output.c
+++ b/net/rxrpc/output.c
@@ -253,12 +253,15 @@ int rxrpc_send_ack_packet(struct rxrpc_call *call, struct rxrpc_txbuf *txb)
iov_iter_kvec(&msg.msg_iter, WRITE, iov, 1, len);
ret = do_udp_sendmsg(conn->local->socket, &msg, len);
call->peer->last_tx_at = ktime_get_seconds();
- if (ret < 0)
+ if (ret < 0) {
trace_rxrpc_tx_fail(call->debug_id, serial, ret,
rxrpc_tx_point_call_ack);
- else
+ } else {
trace_rxrpc_tx_packet(call->debug_id, &txb->wire,
rxrpc_tx_point_call_ack);
+ if (txb->wire.flags & RXRPC_REQUEST_ACK)
+ call->peer->rtt_last_req = ktime_get_real();
+ }
rxrpc_tx_backoff(call, ret);
if (!__rxrpc_call_is_complete(call)) {