1 files changed, 4 insertions, 1 deletions

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index c188ea624c74..652ef01be582 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -38,6 +38,7 @@
 #define MIGRATE_UNMOVABLE     0
 #define MIGRATE_RECLAIMABLE   1
 #define MIGRATE_MOVABLE       2
+#define MIGRATE_PCPTYPES      3 /* the number of types on the pcp lists */
 #define MIGRATE_RESERVE       3
 #define MIGRATE_ISOLATE       4 /* can't allocate from here */
 #define MIGRATE_TYPES         5
@@ -169,7 +170,9 @@ struct per_cpu_pages {
         int count;              /* number of pages in the list */
         int high;               /* high watermark, emptying needed */
         int batch;              /* chunk size for buddy add/remove */
-        struct list_head list;  /* the list of pages */
+
+        /* Lists of pages, one per migrate type stored on the pcp-lists */
+        struct list_head lists[MIGRATE_PCPTYPES];
 };
 
 struct per_cpu_pageset {