[PATCH net-next 07/10] rxrpc: Trace socket notification
From: David Howells <dhowells@redhat.com>
Date: 2018-08-01 12:59:34
Also in:
lkml
Subsystem:
networking [general], rxrpc sockets (af_rxrpc), the rest, tracing · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, David Howells, Marc Dionne, Linus Torvalds, Steven Rostedt, Masami Hiramatsu
Trace notifications from the softirq side of the socket to the process-context side. Signed-off-by: David Howells <dhowells@redhat.com> --- include/trace/events/rxrpc.h | 20 ++++++++++++++++++++ net/rxrpc/input.c | 4 +++- 2 files changed, 23 insertions(+), 1 deletion(-)
diff --git a/include/trace/events/rxrpc.h b/include/trace/events/rxrpc.h
index c1a800a6dee3..196587b8f204 100644
--- a/include/trace/events/rxrpc.h
+++ b/include/trace/events/rxrpc.h@@ -1528,6 +1528,26 @@ TRACE_EVENT(rxrpc_call_reset, __entry->tx_seq, __entry->rx_seq) ); +TRACE_EVENT(rxrpc_notify_socket, + TP_PROTO(unsigned int debug_id, rxrpc_serial_t serial), + + TP_ARGS(debug_id, serial), + + TP_STRUCT__entry( + __field(unsigned int, debug_id ) + __field(rxrpc_serial_t, serial ) + ), + + TP_fast_assign( + __entry->debug_id = debug_id; + __entry->serial = serial; + ), + + TP_printk("c=%08x r=%08x", + __entry->debug_id, + __entry->serial) + ); + #endif /* _TRACE_RXRPC_H */ /* This part must be outside protection */
diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c
index 8989d760b6b2..cfdc199c6351 100644
--- a/net/rxrpc/input.c
+++ b/net/rxrpc/input.c@@ -597,8 +597,10 @@ static void rxrpc_input_data(struct rxrpc_call *call, struct sk_buff *skb, false, true, rxrpc_propose_ack_input_data); - if (sp->hdr.seq == READ_ONCE(call->rx_hard_ack) + 1) + if (sp->hdr.seq == READ_ONCE(call->rx_hard_ack) + 1) { + trace_rxrpc_notify_socket(call->debug_id, serial); rxrpc_notify_socket(call); + } _leave(" [queued]"); }