diff --git a/block/ssg-cgroup.c b/block/ssg-cgroup.c
index 1b36c95d2..cea830529 100755
--- a/block/ssg-cgroup.c
+++ b/block/ssg-cgroup.c
@@ -50,7 +50,7 @@ static void ssg_blkcg_cpd_init(struct blkcg_policy_data *cpd)
 	if (IS_ERR_OR_NULL(ssg_blkcg))
 		return;
 
-	ssg_blkcg->max_available_ratio = 100;
+	ssg_blkcg->max_available_ratio = 25;
 }
 
 static void ssg_blkcg_cpd_free(struct blkcg_policy_data *cpd)