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| author | David Howells | 2016-09-17 11:49:13 +0200 |
|---|---|---|
| committer | David Howells | 2016-09-17 12:24:03 +0200 |
| commit | a124fe3ee5d82f2c9a9b8818ed5cb9f61685f1d3 (patch) | |
| tree | 460767b547c2b0c39388f857783f543a906a2889 /net/rxrpc/sendmsg.c | |
| parent | rxrpc: Add connection tracepoint and client conn state tracepoint (diff) | |
| download | kernel-qcow2-linux-a124fe3ee5d82f2c9a9b8818ed5cb9f61685f1d3.tar.gz kernel-qcow2-linux-a124fe3ee5d82f2c9a9b8818ed5cb9f61685f1d3.tar.xz kernel-qcow2-linux-a124fe3ee5d82f2c9a9b8818ed5cb9f61685f1d3.zip | |
rxrpc: Add a tracepoint to follow the life of a packet in the Tx buffer
Add a tracepoint to follow the insertion of a packet into the transmit
buffer, its transmission and its rotation out of the buffer.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'net/rxrpc/sendmsg.c')
| -rw-r--r-- | net/rxrpc/sendmsg.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/net/rxrpc/sendmsg.c b/net/rxrpc/sendmsg.c index 8bfddf4e338c..28d8f73cf11d 100644 --- a/net/rxrpc/sendmsg.c +++ b/net/rxrpc/sendmsg.c @@ -56,6 +56,7 @@ static int rxrpc_wait_for_tx_window(struct rxrpc_sock *rx, break; } + trace_rxrpc_transmit(call, rxrpc_transmit_wait); release_sock(&rx->sk); *timeo = schedule_timeout(*timeo); lock_sock(&rx->sk); @@ -104,8 +105,14 @@ static void rxrpc_queue_packet(struct rxrpc_call *call, struct sk_buff *skb, smp_wmb(); call->rxtx_buffer[ix] = skb; call->tx_top = seq; - if (last) + if (last) { set_bit(RXRPC_CALL_TX_LAST, &call->flags); + trace_rxrpc_transmit(call, rxrpc_transmit_queue_last); + } else if (sp->hdr.flags & RXRPC_REQUEST_ACK) { + trace_rxrpc_transmit(call, rxrpc_transmit_queue_reqack); + } else { + trace_rxrpc_transmit(call, rxrpc_transmit_queue); + } if (last || call->state == RXRPC_CALL_SERVER_ACK_REQUEST) { _debug("________awaiting reply/ACK__________"); |