1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 3ac040f19369..ca6ca92418a6 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -317,6 +317,12 @@ struct zone {
          */
         unsigned long           lowmem_reserve[MAX_NR_ZONES];
 
+        /*
+         * This is a per-zone reserve of pages that should not be
+         * considered dirtyable memory.
+         */
+        unsigned long           dirty_balance_reserve;
+
 #ifdef CONFIG_NUMA
         int node;
         /*