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-rw-r--r--mm/internal.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/mm/internal.h b/mm/internal.h
index 69488205723d..4c98630f0f77 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -39,6 +39,15 @@ static inline void __put_page(struct page *page)
extern unsigned long highest_memmap_pfn;
+#ifdef CONFIG_SMP
+extern int putback_active_lru_page(struct zone *zone, struct page *page);
+#else
+static inline int putback_active_lru_page(struct zone *zone, struct page *page)
+{
+ return 0;
+}
+#endif
+
/*
* in mm/vmscan.c:
*/