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-rw-r--r--include/linux/mmzone.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 20ea42c45e4a..f4bfe824834f 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -37,7 +37,8 @@
#define MIGRATE_RECLAIMABLE 1
#define MIGRATE_MOVABLE 2
#define MIGRATE_RESERVE 3
-#define MIGRATE_TYPES 4
+#define MIGRATE_ISOLATE 4 /* can't allocate from here */
+#define MIGRATE_TYPES 5
#define for_each_migratetype_order(order, type) \
for (order = 0; order < MAX_ORDER; order++) \