diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index a4bb857d902c76c0da5521bc0304d32e5c6b8c50..a18e228f140bf8ade69625a00686f58a57c6b043 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -138,6 +138,7 @@ static const char * const mem_cgroup_lru_names[] = {
  */
 enum mem_cgroup_events_target {
 	MEM_CGROUP_TARGET_THRESH,
+	MEM_CGROUP_TARGET_SOFTLIMIT,
 	MEM_CGROUP_TARGET_NUMAINFO,
 	MEM_CGROUP_NTARGETS,
 };
@@ -315,6 +316,22 @@ struct mem_cgroup {
 	atomic_t	numainfo_events;
 	atomic_t	numainfo_updating;
 #endif
+	/*
+	 * Protects soft_contributed transitions.
+	 * See mem_cgroup_update_soft_limit
+	 */
+	spinlock_t soft_lock;
+
+	/*
+	 * If true then this group has increased parents' children_in_excess
+         * when it got over the soft limit.
+	 * When a group falls bellow the soft limit, parents' children_in_excess
+	 * is decreased and soft_contributed changed to false.
+	 */
+	bool soft_contributed;
+
+	/* Number of children that are in soft limit excess */
+	atomic_t children_in_excess;
 
 	struct mem_cgroup_per_node *nodeinfo[0];
 	/* WARNING: nodeinfo must be the last member here */
@@ -802,6 +819,9 @@ static bool mem_cgroup_event_ratelimit(struct mem_cgroup *memcg,
 		case MEM_CGROUP_TARGET_THRESH:
 			next = val + THRESHOLDS_EVENTS_TARGET;
 			break;
+		case MEM_CGROUP_TARGET_SOFTLIMIT:
+			next = val + SOFTLIMIT_EVENTS_TARGET;
+			break;
 		case MEM_CGROUP_TARGET_NUMAINFO:
 			next = val + NUMAINFO_EVENTS_TARGET;
 			break;
@@ -814,6 +834,42 @@ static bool mem_cgroup_event_ratelimit(struct mem_cgroup *memcg,
 	return false;
 }
 
+/*
+ * Called from rate-limitted memcg_check_events when enough
+ * MEM_CGROUP_TARGET_SOFTLIMIT events are accumulated and it makes sure
+ * that all the parents up the hierarchy will be noticed that this group
+ * is in excess or that it is not in excess anymore. mmecg->soft_contributed
+ * makes the transition a single action whenever the state flips from one to
+ * other.
+ */
+static void mem_cgroup_update_soft_limit(struct mem_cgroup *memcg)
+{
+	unsigned long long excess = res_counter_soft_limit_excess(&memcg->res);
+	struct mem_cgroup *parent = memcg;
+	int delta = 0;
+
+	spin_lock(&memcg->soft_lock);
+	if (excess) {
+		if (!memcg->soft_contributed) {
+			delta = 1;
+			memcg->soft_contributed = true;
+		}
+	} else {
+		if (memcg->soft_contributed) {
+			delta = -1;
+			memcg->soft_contributed = false;
+		}
+	}
+
+	/*
+	 * Necessary to update all ancestors when hierarchy is used
+	 * because their event counter is not touched.
+	 */
+	while (delta && (parent = parent_mem_cgroup(parent)))
+		atomic_add(delta, &parent->children_in_excess);
+	spin_unlock(&memcg->soft_lock);
+}
+
 /*
  * Check events in order.
  *
@@ -824,8 +880,11 @@ static void memcg_check_events(struct mem_cgroup *memcg, struct page *page)
 	/* threshold event is triggered in finer grain than soft limit */
 	if (unlikely(mem_cgroup_event_ratelimit(memcg,
 						MEM_CGROUP_TARGET_THRESH))) {
+		bool do_softlimit;
 		bool do_numainfo __maybe_unused;
 
+		do_softlimit = mem_cgroup_event_ratelimit(memcg,
+						MEM_CGROUP_TARGET_SOFTLIMIT);
 #if MAX_NUMNODES > 1
 		do_numainfo = mem_cgroup_event_ratelimit(memcg,
 						MEM_CGROUP_TARGET_NUMAINFO);
@@ -833,6 +892,8 @@ static void memcg_check_events(struct mem_cgroup *memcg, struct page *page)
 		preempt_enable();
 
 		mem_cgroup_threshold(memcg);
+		if (unlikely(do_softlimit))
+			mem_cgroup_update_soft_limit(memcg);
 #if MAX_NUMNODES > 1
 		if (unlikely(do_numainfo))
 			atomic_inc(&memcg->numainfo_events);
@@ -1816,6 +1877,9 @@ int mem_cgroup_select_victim_node(struct mem_cgroup *memcg)
  * hierarchy if
  * 	a) it is over its soft limit
  * 	b) any parent up the hierarchy is over its soft limit
+ *
+ * If the given group doesn't have any children over the limit then it
+ * doesn't make any sense to iterate its subtree.
  */
 enum mem_cgroup_filter_t
 mem_cgroup_soft_reclaim_eligible(struct mem_cgroup *memcg,
@@ -1837,6 +1901,8 @@ mem_cgroup_soft_reclaim_eligible(struct mem_cgroup *memcg,
 			break;
 	}
 
+	if (!atomic_read(&memcg->children_in_excess))
+		return SKIP_TREE;
 	return SKIP;
 }
 
@@ -5892,6 +5958,7 @@ mem_cgroup_css_alloc(struct cgroup_subsys_state *parent_css)
 	mutex_init(&memcg->thresholds_lock);
 	spin_lock_init(&memcg->move_lock);
 	vmpressure_init(&memcg->vmpressure);
+	spin_lock_init(&memcg->soft_lock);
 
 	return &memcg->css;
 
@@ -5969,6 +6036,10 @@ static void mem_cgroup_css_offline(struct cgroup_subsys_state *css)
 
 	mem_cgroup_invalidate_reclaim_iterators(memcg);
 	mem_cgroup_reparent_charges(memcg);
+	if (memcg->soft_contributed) {
+		while ((memcg = parent_mem_cgroup(memcg)))
+			atomic_dec(&memcg->children_in_excess);
+	}
 	mem_cgroup_destroy_all_caches(memcg);
 	vmpressure_cleanup(&memcg->vmpressure);
 }