Re: [PATCH] tracing: fix referencing after memory freeing and refactors code

[Oleg Nesterov <oleg@redhat.com>]

Steven, et all, sorry for off-topic...

You probably know that kernel/trace/ is not trivial ;) and the fact
that cscope doesn't shows the callers in kernel/trace/trace_events.c
doesn't really help.

Fixed by the patch below, but I am not sure it is fine to uglify the
code to help the buggy tools. Is there any other way?

Oleg.
---

diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 368a4d5..087fff1 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -68,6 +68,9 @@ static int system_refcount_dec(struct event_subsystem *system)
 		struct ftrace_event_file *___n;				\
 		list_for_each_entry_safe(file, ___n, &tr->events, list)
 
+/* Yes. Twice to not confuse csope */
+#define while_for_each_event_file()		\
+	}
 #define while_for_each_event_file()		\
 	}