Commit 4272d303 authored by David Howells's avatar David Howells
Browse files

rxrpc: Trace socket notification 



Trace notifications from the softirq side of the socket to the
process-context side.

Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
parent 197445af

include/trace/events/rxrpc.h

+20 −0
Original line number Diff line number Diff line
@@ -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 */

net/rxrpc/input.c

+3 −1
Original line number Diff line number Diff line
@@ -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]");

}