[for-next][PATCH 1/2] powerpc/thp: tracing: Hide hugepage events under CONFIG_PPC_BOOK3S_64
From: Steven Rostedt
Date: Sat Jul 26 2025 - 10:17:00 EST
From: Steven Rostedt <rostedt@xxxxxxxxxxx>
The events hugepage_set_pmd, hugepage_set_pud, hugepage_update_pmd and
hugepage_update_pud are only called when CONFIG_PPC_BOOK3S_64 is defined.
As each event can take up to 5K regardless if they are used or not, it's
best not to define them when they are not used. Add #ifdef around these
events when they are not used.
Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/20250612101259.0ad43e48@xxxxxxxxxxxxxxxxx
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
Acked-by: Madhavan Srinivasan <maddy@xxxxxxxxxxxxx>
Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
---
include/trace/events/thp.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/trace/events/thp.h b/include/trace/events/thp.h
index f50048af5fcc..c8fe879d5828 100644
--- a/include/trace/events/thp.h
+++ b/include/trace/events/thp.h
@@ -8,6 +8,7 @@
#include <linux/types.h>
#include <linux/tracepoint.h>
+#ifdef CONFIG_PPC_BOOK3S_64
DECLARE_EVENT_CLASS(hugepage_set,
TP_PROTO(unsigned long addr, unsigned long pte),
@@ -66,6 +67,7 @@ DEFINE_EVENT(hugepage_update, hugepage_update_pud,
TP_PROTO(unsigned long addr, unsigned long pud, unsigned long clr, unsigned long set),
TP_ARGS(addr, pud, clr, set)
);
+#endif /* CONFIG_PPC_BOOK3S_64 */
DECLARE_EVENT_CLASS(migration_pmd,
--
2.47.2