1 files changed, 3 insertions, 0 deletions
diff --git a/block_int.h b/block_int.h
index 907e864101..9a3b2e09de 100644
--- a/block_int.h
+++ b/block_int.h
@@ -117,6 +117,9 @@ struct BlockDriver {
     /* Returns number of errors in image, -errno for internal errors */
     int (*bdrv_check)(BlockDriverState* bs);
 
+    /* Set if newly created images are not guaranteed to contain only zeros */
+    int no_zero_init;
+
     struct BlockDriver *next;
 };