2016-02-18 23:29 GMT+09:00 Steven Rostedt [off-list ref]:
On Mon, 15 Feb 2016 12:04:50 +0900
js1304@gmail.com wrote:
quoted
diff --git a/include/linux/page_ref.h b/include/linux/page_ref.h
index 534249c..fd6d9a5 100644
--- a/include/linux/page_ref.h
+++ b/include/linux/page_ref.h
@@ -1,6 +1,54 @@
#include <linux/atomic.h>
#include <linux/mm_types.h>
#include <linux/page-flags.h>
+#include <linux/tracepoint-defs.h>
+
+extern struct tracepoint __tracepoint_page_ref_set;
+extern struct tracepoint __tracepoint_page_ref_mod;
+extern struct tracepoint __tracepoint_page_ref_mod_and_test;
+extern struct tracepoint __tracepoint_page_ref_mod_and_return;
+extern struct tracepoint __tracepoint_page_ref_mod_unless;
+extern struct tracepoint __tracepoint_page_ref_freeze;
+extern struct tracepoint __tracepoint_page_ref_unfreeze;
+
+#ifdef CONFIG_DEBUG_PAGE_REF
Please add a comment here. Something to the effect of:
Okay!
/*
* Ideally we would want to use the trace_<tracepoint>_enabled() helper
* functions. But due to include header file issues, that is not
* feasible. Instead we have to open code the static key functions.
*
* See trace_##name##_enabled(void) in include/linux/tracepoint.h
*/
I may have to work on something that lets these helpers be defined in
headers. I have some ideas on how to do that. But for now, this
solution is fine.
Okay.
Thanks.
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