1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 3899395a03de..7f693b272c4a 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -971,7 +971,13 @@ static inline void setmax_mm_hiwater_rss(unsigned long *maxrss,
                 *maxrss = hiwater_rss;
 }
 
+#if defined(SPLIT_RSS_COUNTING)
 void sync_mm_rss(struct task_struct *task, struct mm_struct *mm);
+#else
+static inline void sync_mm_rss(struct task_struct *task, struct mm_struct *mm)
+{
+}
+#endif
 
 /*
  * A callback you can register to apply pressure to ageable caches.