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-rw-r--r--include/linux/mmzone.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index bd791e452ad7..67ab5febabf7 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -490,6 +490,12 @@ struct zone {
unsigned long managed_pages;
/*
+ * Number of MIGRATE_RESEVE page block. To maintain for just
+ * optimization. Protected by zone->lock.
+ */
+ int nr_migrate_reserve_block;
+
+ /*
* rarely used fields:
*/
const char *name;