rxrpc: Obtain RTT data by requesting ACKs on DATA packets

[cascardo/linux.git] / net / rxrpc / output.c

diff --git a/net/rxrpc/output.c b/net/rxrpc/output.c
index 0d89cd3..db01fbb 100644 (file)
--- a/net/rxrpc/output.c
+++ b/net/rxrpc/output.c
@@ -300,9 +300,12 @@ int rxrpc_send_data_packet(struct rxrpc_call *call, struct sk_buff *skb)
                goto send_fragmentable;
 
 done:
-       if (ret == 0) {
-               sp->resend_at = jiffies + rxrpc_resend_timeout;
+       if (ret >= 0) {
+               skb->tstamp = ktime_get_real();
+               smp_wmb();
                sp->hdr.serial = serial;
+               if (whdr.flags & RXRPC_REQUEST_ACK)
+                       trace_rxrpc_rtt_tx(call, rxrpc_rtt_tx_data, serial);
        }
        _leave(" = %d [%u]", ret, call->peer->maxdata);
        return ret;