diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 1cd944c2a734..a96d9015ff73 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -6396,14 +6396,14 @@ enum mem_cgroup_protection mem_cgroup_protected(struct mem_cgroup *root,
 
 	parent_usage = page_counter_read(&parent->memory);
 
-	memcg->memory.emin = effective_protection(usage, parent_usage,
+	WRITE_ONCE(memcg->memory.emin, effective_protection(usage, parent_usage,
 			READ_ONCE(memcg->memory.min),
 			READ_ONCE(parent->memory.emin),
-			atomic_long_read(&parent->memory.children_min_usage));
+			atomic_long_read(&parent->memory.children_min_usage)));
 
-	memcg->memory.elow = effective_protection(usage, parent_usage,
+	WRITE_ONCE(memcg->memory.elow, effective_protection(usage, parent_usage,
 			memcg->memory.low, READ_ONCE(parent->memory.elow),
-			atomic_long_read(&parent->memory.children_low_usage));
+			atomic_long_read(&parent->memory.children_low_usage)));
 
 out:
 	if (usage <= memcg->memory.emin)