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authorDavid Howells <dhowells@redhat.com>2016-09-07 14:34:21 +0100
committerDavid Howells <dhowells@redhat.com>2016-09-07 15:30:22 +0100
commitfff72429c2e83bdbe32dc7f1ad6398dfe50750c6 (patch)
tree3b905c48f05baada1309ebcba5d3ba0dbee9e83f /include/trace
parente796cb419237f54b96442ae7feca1859c693865c (diff)
downloadlinux-fff72429c2e83bdbe32dc7f1ad6398dfe50750c6.tar.gz
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>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/rxrpc.h11
1 files changed, 3 insertions, 8 deletions
diff --git a/include/trace/events/rxrpc.h b/include/trace/events/rxrpc.h
index cbe574ea674b..30164896f1f6 100644
--- a/include/trace/events/rxrpc.h
+++ b/include/trace/events/rxrpc.h
@@ -17,7 +17,8 @@
 #include <linux/tracepoint.h>
 
 TRACE_EVENT(rxrpc_call,
-	    TP_PROTO(struct rxrpc_call *call, int op, int usage, int nskb,
+	    TP_PROTO(struct rxrpc_call *call, enum rxrpc_call_trace op,
+		     int usage, int nskb,
 		     const void *where, const void *aux),
 
 	    TP_ARGS(call, op, usage, nskb, where, aux),
@@ -42,13 +43,7 @@ TRACE_EVENT(rxrpc_call,
 
 	    TP_printk("c=%p %s u=%d s=%d p=%pSR a=%p",
 		      __entry->call,
-		      (__entry->op == 0 ? "NWc" :
-		       __entry->op == 1 ? "NWs" :
-		       __entry->op == 2 ? "SEE" :
-		       __entry->op == 3 ? "GET" :
-		       __entry->op == 4 ? "Gsb" :
-		       __entry->op == 5 ? "PUT" :
-		       "Psb"),
+		      rxrpc_call_traces[__entry->op],
 		      __entry->usage,
 		      __entry->nskb,
 		      __entry->where,