rxrpc: Add connection tracepoint and client conn state tracepoint
Add a pair of tracepoints, one to track rxrpc_connection struct ref
counting and the other to track the client connection cache state.
Signed-off-by: David Howells <dhowells@redhat.com>
diff --git a/include/trace/events/rxrpc.h b/include/trace/events/rxrpc.h
index 0a30c67..c0c496c 100644
--- a/include/trace/events/rxrpc.h
+++ b/include/trace/events/rxrpc.h
@@ -16,6 +16,66 @@
#include <linux/tracepoint.h>
+TRACE_EVENT(rxrpc_conn,
+ TP_PROTO(struct rxrpc_connection *conn, enum rxrpc_conn_trace op,
+ int usage, const void *where),
+
+ TP_ARGS(conn, op, usage, where),
+
+ TP_STRUCT__entry(
+ __field(struct rxrpc_connection *, conn )
+ __field(int, op )
+ __field(int, usage )
+ __field(const void *, where )
+ ),
+
+ TP_fast_assign(
+ __entry->conn = conn;
+ __entry->op = op;
+ __entry->usage = usage;
+ __entry->where = where;
+ ),
+
+ TP_printk("C=%p %s u=%d sp=%pSR",
+ __entry->conn,
+ rxrpc_conn_traces[__entry->op],
+ __entry->usage,
+ __entry->where)
+ );
+
+TRACE_EVENT(rxrpc_client,
+ TP_PROTO(struct rxrpc_connection *conn, int channel,
+ enum rxrpc_client_trace op),
+
+ TP_ARGS(conn, channel, op),
+
+ TP_STRUCT__entry(
+ __field(struct rxrpc_connection *, conn )
+ __field(u32, cid )
+ __field(int, channel )
+ __field(int, usage )
+ __field(enum rxrpc_client_trace, op )
+ __field(enum rxrpc_conn_cache_state, cs )
+ ),
+
+ TP_fast_assign(
+ __entry->conn = conn;
+ __entry->channel = channel;
+ __entry->usage = atomic_read(&conn->usage);
+ __entry->op = op;
+ __entry->cid = conn->proto.cid;
+ __entry->cs = conn->cache_state;
+ ),
+
+ TP_printk("C=%p h=%2d %s %s i=%08x u=%d",
+ __entry->conn,
+ __entry->channel,
+ rxrpc_client_traces[__entry->op],
+ rxrpc_conn_cache_states[__entry->cs],
+ __entry->cid,
+ __entry->usage)
+ );
+
TRACE_EVENT(rxrpc_call,
TP_PROTO(struct rxrpc_call *call, enum rxrpc_call_trace op,
int usage, const void *where, const void *aux),