diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index 3a940bfe4e8c..4d13f88bfe25 100644
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -990,6 +990,16 @@ All time durations are in microseconds.
         values similar to the sched_setattr(2). This minimum utilization
         value is used to clamp the task specific minimum utilization clamp.
 
+  cpu.util.min.effective
+        A read-only single value file which exists on non-root cgroups and
+        reports minimum utilization clamp value currently enforced on a task
+        group.
+
+        The actual minimum utilization in the range [0, 1024].
+
+        This value can be lower then cpu.util.min in case a parent cgroup
+        allows only smaller minimum utilization values.
+
   cpu.util.max
         A read-write single value file which exists on non-root cgroups.
         The default is "1024". i.e. no utilization capping
@@ -1000,6 +1010,15 @@ All time durations are in microseconds.
         values similar to the sched_setattr(2). This maximum utilization
         value is used to clamp the task specific maximum utilization clamp.
 
+  cpu.util.max.effective
+        A read-only single value file which exists on non-root cgroups and
+        reports maximum utilization clamp value currently enforced on a task
+        group.
+
+        The actual maximum utilization in the range [0, 1024].
+
+        This value can be lower then cpu.util.max in case a parent cgroup
+        is enforcing a more restrictive clamping on max utilization.
 
 
 Memory
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 19437257a08d..efedbd3a0ce6 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -761,6 +761,18 @@ static void set_load_weight(struct task_struct *p, bool update_load)
 }
 
 #ifdef CONFIG_UCLAMP_TASK
+/*
+ * Serializes updates of utilization clamp values
+ *
+ * The (slow-path) user-space triggers utilization clamp value updates which
+ * can require updates on (fast-path) scheduler's data structures used to
+ * support enqueue/dequeue operations.
+ * While the per-CPU rq lock protects fast-path update operations, user-space
+ * requests are serialized using a mutex to reduce the risk of conflicting
+ * updates or API abuses.
+ */
+static DEFINE_MUTEX(uclamp_mutex);
+
 /* Max allowed minimum utilization */
 unsigned int sysctl_sched_uclamp_util_min = SCHED_CAPACITY_SCALE;
 
@@ -1125,6 +1137,8 @@ static void __init init_uclamp(void)
 	unsigned int clamp_id;
 	int cpu;
 
+	mutex_init(&uclamp_mutex);
+
 	for_each_possible_cpu(cpu) {
 		memset(&cpu_rq(cpu)->uclamp, 0, sizeof(struct uclamp_rq));
 		cpu_rq(cpu)->uclamp_flags = 0;
@@ -1141,6 +1155,7 @@ static void __init init_uclamp(void)
 		uclamp_default[clamp_id] = uc_max;
 #ifdef CONFIG_UCLAMP_TASK_GROUP
 		root_task_group.uclamp_req[clamp_id] = uc_max;
+		root_task_group.uclamp[clamp_id] = uc_max;
 #endif
 	}
 }
@@ -6705,8 +6720,10 @@ static inline void alloc_uclamp_sched_group(struct task_group *tg,
 #ifdef CONFIG_UCLAMP_TASK_GROUP
 	int clamp_id;
 
-	for_each_clamp_id(clamp_id)
+	for_each_clamp_id(clamp_id) {
 		tg->uclamp_req[clamp_id] = parent->uclamp_req[clamp_id];
+		tg->uclamp[clamp_id] = parent->uclamp[clamp_id];
+	}
 #endif
 }
 
@@ -6956,6 +6973,44 @@ static void cpu_cgroup_attach(struct cgroup_taskset *tset)
 }
 
 #ifdef CONFIG_UCLAMP_TASK_GROUP
+static void cpu_util_update_eff(struct cgroup_subsys_state *css,
+				unsigned int clamp_id)
+{
+	struct cgroup_subsys_state *top_css = css;
+	struct uclamp_se *uc_se, *uc_parent;
+	unsigned int value;
+
+	css_for_each_descendant_pre(css, top_css) {
+		value = css_tg(css)->uclamp_req[clamp_id].value;
+
+		uc_parent = NULL;
+		if (css_tg(css)->parent)
+			uc_parent = &css_tg(css)->parent->uclamp[clamp_id];
+
+		/*
+		 * Skip the whole subtrees if the current effective clamp is
+		 * already matching the TG's clamp value.
+		 * In this case, all the subtrees already have top_value, or a
+		 * more restrictive value, as effective clamp.
+		 */
+		uc_se = &css_tg(css)->uclamp[clamp_id];
+		if (uc_se->value == value &&
+		    uc_parent && uc_parent->value >= value) {
+			css = css_rightmost_descendant(css);
+			continue;
+		}
+
+		/* Propagate the most restrictive effective value */
+		if (uc_parent && uc_parent->value < value)
+			value = uc_parent->value;
+		if (uc_se->value == value)
+			continue;
+
+		uc_se->value = value;
+		uc_se->bucket_id = uclamp_bucket_id(value);
+	}
+}
+
 static int cpu_util_min_write_u64(struct cgroup_subsys_state *css,
 				  struct cftype *cftype, u64 min_value)
 {
@@ -6965,6 +7020,7 @@ static int cpu_util_min_write_u64(struct cgroup_subsys_state *css,
 	if (min_value > SCHED_CAPACITY_SCALE)
 		return -ERANGE;
 
+	mutex_lock(&uclamp_mutex);
 	rcu_read_lock();
 
 	tg = css_tg(css);
@@ -6981,8 +7037,12 @@ static int cpu_util_min_write_u64(struct cgroup_subsys_state *css,
 
 	uclamp_se_set(&tg->uclamp_req[UCLAMP_MIN], min_value, false);
 
+	/* Update effective clamps to track the most restrictive value */
+	cpu_util_update_eff(css, UCLAMP_MIN);
+
 out:
 	rcu_read_unlock();
+	mutex_unlock(&uclamp_mutex);
 
 	return ret;
 }
@@ -6996,6 +7056,7 @@ static int cpu_util_max_write_u64(struct cgroup_subsys_state *css,
 	if (max_value > SCHED_CAPACITY_SCALE)
 		return -ERANGE;
 
+	mutex_lock(&uclamp_mutex);
 	rcu_read_lock();
 
 	tg = css_tg(css);
@@ -7012,21 +7073,28 @@ static int cpu_util_max_write_u64(struct cgroup_subsys_state *css,
 
 	uclamp_se_set(&tg->uclamp_req[UCLAMP_MAX], max_value, false);
 
+	/* Update effective clamps to track the most restrictive value */
+	cpu_util_update_eff(css, UCLAMP_MAX);
+
 out:
 	rcu_read_unlock();
+	mutex_unlock(&uclamp_mutex);
 
 	return ret;
 }
 
 static inline u64 cpu_uclamp_read(struct cgroup_subsys_state *css,
-				  enum uclamp_id clamp_id)
+				  enum uclamp_id clamp_id,
+				  bool effective)
 {
 	struct task_group *tg;
 	u64 util_clamp;
 
 	rcu_read_lock();
 	tg = css_tg(css);
-	util_clamp = tg->uclamp_req[clamp_id].value;
+	util_clamp = effective
+		? tg->uclamp[clamp_id].value
+		: tg->uclamp_req[clamp_id].value;
 	rcu_read_unlock();
 
 	return util_clamp;
@@ -7035,13 +7103,25 @@ static inline u64 cpu_uclamp_read(struct cgroup_subsys_state *css,
 static u64 cpu_util_min_read_u64(struct cgroup_subsys_state *css,
 				 struct cftype *cft)
 {
-	return cpu_uclamp_read(css, UCLAMP_MIN);
+	return cpu_uclamp_read(css, UCLAMP_MIN, false);
 }
 
 static u64 cpu_util_max_read_u64(struct cgroup_subsys_state *css,
 				 struct cftype *cft)
 {
-	return cpu_uclamp_read(css, UCLAMP_MAX);
+	return cpu_uclamp_read(css, UCLAMP_MAX, false);
+}
+
+static u64 cpu_util_min_effective_read_u64(struct cgroup_subsys_state *css,
+					   struct cftype *cft)
+{
+	return cpu_uclamp_read(css, UCLAMP_MIN, true);
+}
+
+static u64 cpu_util_max_effective_read_u64(struct cgroup_subsys_state *css,
+					   struct cftype *cft)
+{
+	return cpu_uclamp_read(css, UCLAMP_MAX, true);
 }
 #endif /* CONFIG_UCLAMP_TASK_GROUP */
 
@@ -7396,11 +7476,19 @@ static struct cftype cpu_legacy_files[] = {
 		.read_u64 = cpu_util_min_read_u64,
 		.write_u64 = cpu_util_min_write_u64,
 	},
+	{
+		.name = "util.min.effective",
+		.read_u64 = cpu_util_min_effective_read_u64,
+	},
 	{
 		.name = "util.max",
 		.read_u64 = cpu_util_max_read_u64,
 		.write_u64 = cpu_util_max_write_u64,
 	},
+	{
+		.name = "util.max.effective",
+		.read_u64 = cpu_util_max_effective_read_u64,
+	},
 #endif
 	{ }	/* Terminate */
 };
@@ -7576,12 +7664,22 @@ static struct cftype cpu_files[] = {
 		.read_u64 = cpu_util_min_read_u64,
 		.write_u64 = cpu_util_min_write_u64,
 	},
+	{
+		.name = "util.min.effective",
+		.flags = CFTYPE_NOT_ON_ROOT,
+		.read_u64 = cpu_util_min_effective_read_u64,
+	},
 	{
 		.name = "util.max",
 		.flags = CFTYPE_NOT_ON_ROOT,
 		.read_u64 = cpu_util_max_read_u64,
 		.write_u64 = cpu_util_max_write_u64,
 	},
+	{
+		.name = "util.max.effective",
+		.flags = CFTYPE_NOT_ON_ROOT,
+		.read_u64 = cpu_util_max_effective_read_u64,
+	},
 #endif
 	{ }	/* terminate */
 };
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index fd31527fdcc8..f3c65af96756 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -403,6 +403,8 @@ struct task_group {
 #ifdef CONFIG_UCLAMP_TASK_GROUP
 	/* Clamp values requested for a task group */
 	struct uclamp_se	uclamp_req[UCLAMP_CNT];
+	/* Effective clamp values used for a task group */
+	struct uclamp_se	uclamp[UCLAMP_CNT];
 #endif
 
 };
