1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/swap.h b/include/linux/swap.h
index 600b03b7732e..1e8ce148d058 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -229,6 +229,11 @@ static inline void lru_cache_add_file(struct page *page)
         __lru_cache_add(page, LRU_INACTIVE_FILE);
 }
 
+/* LRU Isolation modes. */
+#define ISOLATE_INACTIVE 0      /* Isolate inactive pages. */
+#define ISOLATE_ACTIVE 1        /* Isolate active pages. */
+#define ISOLATE_BOTH 2          /* Isolate both active and inactive pages. */
+
 /* linux/mm/vmscan.c */
 extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order,
                                         gfp_t gfp_mask, nodemask_t *mask);