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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 /net/rxrpc/ar-internal.h
parente796cb419237f54b96442ae7feca1859c693865c (diff)
downloadlinux-fff72429c2e83bdbe32dc7f1ad6398dfe50750c6.tar.bz2
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 'net/rxrpc/ar-internal.h')
-rw-r--r--net/rxrpc/ar-internal.h22
1 files changed, 20 insertions, 2 deletions
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index ad702f9f8d1f..913255a53564 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -508,6 +508,24 @@ struct rxrpc_call {
unsigned long ackr_window[RXRPC_ACKR_WINDOW_ASZ + 1];
};
+enum rxrpc_call_trace {
+ rxrpc_call_new_client,
+ rxrpc_call_new_service,
+ rxrpc_call_queued,
+ rxrpc_call_queued_ref,
+ rxrpc_call_seen,
+ rxrpc_call_got,
+ rxrpc_call_got_skb,
+ rxrpc_call_got_userid,
+ rxrpc_call_put,
+ rxrpc_call_put_skb,
+ rxrpc_call_put_userid,
+ rxrpc_call_put_noqueue,
+ rxrpc_call__nr_trace
+};
+
+extern const char rxrpc_call_traces[rxrpc_call__nr_trace][4];
+
#include <trace/events/rxrpc.h>
/*
@@ -555,8 +573,8 @@ struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *,
void rxrpc_release_call(struct rxrpc_call *);
void rxrpc_release_calls_on_socket(struct rxrpc_sock *);
void rxrpc_see_call(struct rxrpc_call *);
-void rxrpc_get_call(struct rxrpc_call *);
-void rxrpc_put_call(struct rxrpc_call *);
+void rxrpc_get_call(struct rxrpc_call *, enum rxrpc_call_trace);
+void rxrpc_put_call(struct rxrpc_call *, enum rxrpc_call_trace);
void rxrpc_get_call_for_skb(struct rxrpc_call *, struct sk_buff *);
void rxrpc_put_call_for_skb(struct rxrpc_call *, struct sk_buff *);
void __exit rxrpc_destroy_all_calls(void);