diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index fc35036..3ea48b7 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -612,9 +612,9 @@
 	u64 parent_since;   /* snapid when our current parent became so */
 
 	u64 *prior_parent_snaps;      /* snaps inherited from any parents we */
-	int num_prior_parent_snaps;   /*  had prior to parent_since */
+	u32 num_prior_parent_snaps;   /*  had prior to parent_since */
 	u64 *snaps;                   /* snaps specific to this realm */
-	int num_snaps;
+	u32 num_snaps;
 
 	struct ceph_snap_realm *parent;
 	struct list_head children;       /* list of child realms */