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

From: Oleg Nesterov
Date: Sat Oct 19 2013 - 09:41:21 EST


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() \
}


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/