rxrpc: Add a tracepoint to follow what recvmsg does
Add a tracepoint to follow what recvmsg does within AF_RXRPC.
Signed-off-by: David Howells <dhowells@redhat.com>
diff --git a/include/trace/events/rxrpc.h b/include/trace/events/rxrpc.h
index 7dd5f01..5873220 100644
--- a/include/trace/events/rxrpc.h
+++ b/include/trace/events/rxrpc.h
@@ -323,6 +323,40 @@
__entry->top)
);
+TRACE_EVENT(rxrpc_recvmsg,
+ TP_PROTO(struct rxrpc_call *call, enum rxrpc_recvmsg_trace why,
+ rxrpc_seq_t seq, unsigned int offset, unsigned int len,
+ int ret),
+
+ TP_ARGS(call, why, seq, offset, len, ret),
+
+ TP_STRUCT__entry(
+ __field(struct rxrpc_call *, call )
+ __field(enum rxrpc_recvmsg_trace, why )
+ __field(rxrpc_seq_t, seq )
+ __field(unsigned int, offset )
+ __field(unsigned int, len )
+ __field(int, ret )
+ ),
+
+ TP_fast_assign(
+ __entry->call = call;
+ __entry->why = why;
+ __entry->seq = seq;
+ __entry->offset = offset;
+ __entry->len = len;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("c=%p %s q=%08x o=%u l=%u ret=%d",
+ __entry->call,
+ rxrpc_recvmsg_traces[__entry->why],
+ __entry->seq,
+ __entry->offset,
+ __entry->len,
+ __entry->ret)
+ );
+
#endif /* _TRACE_RXRPC_H */
/* This part must be outside protection */