rxrpc: Improve the call tracking tracepoint

Improve the call tracking tracepoint by showing more differentiation
between some of the put and get events, including:

  (1) Getting and putting refs for the socket call user ID tree.

  (2) Getting and putting refs for queueing and failing to queue the call
      processor work item.

Note that these aren't necessarily used in this patch, but will be taken
advantage of in future patches.

An enum is added for the event subtype numbers rather than coding them
directly as decimal numbers and a table of 3-letter strings is provided
rather than a sequence of ?: operators.

Signed-off-by: David Howells <dhowells@redhat.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c
index 72f016cfaaf5..f7239a6f9181 100644
--- a/net/rxrpc/input.c
+++ b/net/rxrpc/input.c
@@ -537,7 +537,7 @@ static void rxrpc_post_packet_to_call(struct rxrpc_call *call,
 	}
 
 	read_unlock(&call->state_lock);
-	rxrpc_get_call(call);
+	rxrpc_get_call(call, rxrpc_call_got);
 
 	if (sp->hdr.type == RXRPC_PACKET_TYPE_DATA &&
 	    sp->hdr.flags & RXRPC_JUMBO_PACKET)
@@ -545,12 +545,12 @@ static void rxrpc_post_packet_to_call(struct rxrpc_call *call,
 	else
 		rxrpc_fast_process_packet(call, skb);
 
-	rxrpc_put_call(call);
+	rxrpc_put_call(call, rxrpc_call_put);
 	goto done;
 
 resend_final_ack:
 	_debug("final ack again");
-	rxrpc_get_call(call);
+	rxrpc_get_call(call, rxrpc_call_got);
 	set_bit(RXRPC_CALL_EV_ACK_FINAL, &call->events);
 	rxrpc_queue_call(call);
 	goto free_unlock;