diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h
index 8070a83dbedc..31e0193cb0c5 100644
--- a/include/linux/sched/sysctl.h
+++ b/include/linux/sched/sysctl.h
@@ -81,15 +81,6 @@ static inline unsigned int get_sysctl_timer_migration(void)
 extern unsigned int sysctl_sched_rt_period;
 extern int sysctl_sched_rt_runtime;
 
-/*
- *  control SCHED_DEADLINE reservations:
- *
- *  /proc/sys/kernel/sched_dl_period_us
- *  /proc/sys/kernel/sched_dl_runtime_us
- */
-extern unsigned int sysctl_sched_dl_period;
-extern int sysctl_sched_dl_runtime;
-
 #ifdef CONFIG_CFS_BANDWIDTH
 extern unsigned int sysctl_sched_cfs_bandwidth_slice;
 #endif
@@ -108,8 +99,4 @@ extern int sched_rt_handler(struct ctl_table *table, int write,
 		void __user *buffer, size_t *lenp,
 		loff_t *ppos);
 
-int sched_dl_handler(struct ctl_table *table, int write,
-		void __user *buffer, size_t *lenp,
-		loff_t *ppos);
-
 #endif /* _SCHED_SYSCTL_H */
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 27c6375d182a..1d33eb8143cc 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6771,7 +6771,7 @@ void __init sched_init(void)
 	init_rt_bandwidth(&def_rt_bandwidth,
 			global_rt_period(), global_rt_runtime());
 	init_dl_bandwidth(&def_dl_bandwidth,
-			global_dl_period(), global_dl_runtime());
+			global_rt_period(), global_rt_runtime());
 
 #ifdef CONFIG_SMP
 	init_defrootdomain();
@@ -7354,64 +7354,11 @@ static long sched_group_rt_period(struct task_group *tg)
 }
 #endif /* CONFIG_RT_GROUP_SCHED */
 
-/*
- * Coupling of -rt and -deadline bandwidth.
- *
- * Here we check if the new -rt bandwidth value is consistent
- * with the system settings for the bandwidth available
- * to -deadline tasks.
- *
- * IOW, we want to enforce that
- *
- *   rt_bandwidth + dl_bandwidth <= 100%
- *
- * is always true.
- */
-static bool __sched_rt_dl_global_constraints(u64 rt_bw)
-{
-	unsigned long flags;
-	u64 dl_bw;
-	bool ret;
-
-	raw_spin_lock_irqsave(&def_dl_bandwidth.dl_runtime_lock, flags);
-	if (global_rt_runtime() == RUNTIME_INF ||
-	    global_dl_runtime() == RUNTIME_INF) {
-		ret = true;
-		goto unlock;
-	}
-
-	dl_bw = to_ratio(def_dl_bandwidth.dl_period,
-			 def_dl_bandwidth.dl_runtime);
-
-	ret = rt_bw + dl_bw <= to_ratio(RUNTIME_INF, RUNTIME_INF);
-unlock:
-	raw_spin_unlock_irqrestore(&def_dl_bandwidth.dl_runtime_lock, flags);
-
-	return ret;
-}
-
 #ifdef CONFIG_RT_GROUP_SCHED
 static int sched_rt_global_constraints(void)
 {
-	u64 runtime, period, bw;
 	int ret = 0;
 
-	if (sysctl_sched_rt_period <= 0)
-		return -EINVAL;
-
-	runtime = global_rt_runtime();
-	period = global_rt_period();
-
-	/*
-	 * Sanity check on the sysctl variables.
-	 */
-	if (runtime > period && runtime != RUNTIME_INF)
-		return -EINVAL;
-
-	bw = to_ratio(period, runtime);
-	if (!__sched_rt_dl_global_constraints(bw))
-		return -EINVAL;
-
 	mutex_lock(&rt_constraints_mutex);
 	read_lock(&tasklist_lock);
 	ret = __rt_schedulable(NULL, 0, 0);
@@ -7435,18 +7382,8 @@ static int sched_rt_global_constraints(void)
 {
 	unsigned long flags;
 	int i, ret = 0;
-	u64 bw;
-
-	if (sysctl_sched_rt_period <= 0)
-		return -EINVAL;
 
 	raw_spin_lock_irqsave(&def_rt_bandwidth.rt_runtime_lock, flags);
-	bw = to_ratio(global_rt_period(), global_rt_runtime());
-	if (!__sched_rt_dl_global_constraints(bw)) {
-		ret = -EINVAL;
-		goto unlock;
-	}
-
 	for_each_possible_cpu(i) {
 		struct rt_rq *rt_rq = &cpu_rq(i)->rt;
 
@@ -7454,69 +7391,18 @@ static int sched_rt_global_constraints(void)
 		rt_rq->rt_runtime = global_rt_runtime();
 		raw_spin_unlock(&rt_rq->rt_runtime_lock);
 	}
-unlock:
 	raw_spin_unlock_irqrestore(&def_rt_bandwidth.rt_runtime_lock, flags);
 
 	return ret;
 }
 #endif /* CONFIG_RT_GROUP_SCHED */
 
-/*
- * Coupling of -dl and -rt bandwidth.
- *
- * Here we check, while setting the system wide bandwidth available
- * for -dl tasks and groups, if the new values are consistent with
- * the system settings for the bandwidth available to -rt entities.
- *
- * IOW, we want to enforce that
- *
- *   rt_bandwidth + dl_bandwidth <= 100%
- *
- * is always true.
- */
-static bool __sched_dl_rt_global_constraints(u64 dl_bw)
-{
-	u64 rt_bw;
-	bool ret;
-
-	raw_spin_lock(&def_rt_bandwidth.rt_runtime_lock);
-	if (global_dl_runtime() == RUNTIME_INF ||
-	    global_rt_runtime() == RUNTIME_INF) {
-		ret = true;
-		goto unlock;
-	}
-
-	rt_bw = to_ratio(ktime_to_ns(def_rt_bandwidth.rt_period),
-			 def_rt_bandwidth.rt_runtime);
-
-	ret = rt_bw + dl_bw <= to_ratio(RUNTIME_INF, RUNTIME_INF);
-unlock:
-	raw_spin_unlock(&def_rt_bandwidth.rt_runtime_lock);
-
-	return ret;
-}
-
-static bool __sched_dl_global_constraints(u64 runtime, u64 period)
-{
-	if (!period || (runtime != RUNTIME_INF && runtime > period))
-		return -EINVAL;
-
-	return 0;
-}
-
 static int sched_dl_global_constraints(void)
 {
-	u64 runtime = global_dl_runtime();
-	u64 period = global_dl_period();
+	u64 runtime = global_rt_runtime();
+	u64 period = global_rt_period();
 	u64 new_bw = to_ratio(period, runtime);
-	int ret, i;
-
-	ret = __sched_dl_global_constraints(runtime, period);
-	if (ret)
-		return ret;
-
-	if (!__sched_dl_rt_global_constraints(new_bw))
-		return -EINVAL;
+	int cpu, ret = 0;
 
 	/*
 	 * Here we want to check the bandwidth not being set to some
@@ -7527,20 +7413,101 @@ static int sched_dl_global_constraints(void)
 	 * cycling on root_domains... Discussion on different/better
 	 * solutions is welcome!
 	 */
-	for_each_possible_cpu(i) {
-		struct dl_bw *dl_b = dl_bw_of(i);
+	for_each_possible_cpu(cpu) {
+		struct dl_bw *dl_b = dl_bw_of(cpu);
 
 		raw_spin_lock(&dl_b->lock);
-		if (new_bw < dl_b->total_bw) {
-			raw_spin_unlock(&dl_b->lock);
-			return -EBUSY;
-		}
+		if (new_bw < dl_b->total_bw)
+			ret = -EBUSY;
 		raw_spin_unlock(&dl_b->lock);
+
+		if (ret)
+			break;
 	}
 
+	return ret;
+}
+
+static void sched_dl_do_global(void)
+{
+	u64 new_bw = -1;
+	int cpu;
+
+	def_dl_bandwidth.dl_period = global_rt_period();
+	def_dl_bandwidth.dl_runtime = global_rt_runtime();
+
+	if (global_rt_runtime() != RUNTIME_INF)
+		new_bw = to_ratio(global_rt_period(), global_rt_runtime());
+
+	/*
+	 * FIXME: As above...
+	 */
+	for_each_possible_cpu(cpu) {
+		struct dl_bw *dl_b = dl_bw_of(cpu);
+
+		raw_spin_lock(&dl_b->lock);
+		dl_b->bw = new_bw;
+		raw_spin_unlock(&dl_b->lock);
+	}
+}
+
+static int sched_rt_global_validate(void)
+{
+	if (sysctl_sched_rt_period <= 0)
+		return -EINVAL;
+
+	if (sysctl_sched_rt_runtime > sysctl_sched_rt_period)
+		return -EINVAL;
+
 	return 0;
 }
 
+static void sched_rt_do_global(void)
+{
+	def_rt_bandwidth.rt_runtime = global_rt_runtime();
+	def_rt_bandwidth.rt_period = ns_to_ktime(global_rt_period());
+}
+
+int sched_rt_handler(struct ctl_table *table, int write,
+		void __user *buffer, size_t *lenp,
+		loff_t *ppos)
+{
+	int old_period, old_runtime;
+	static DEFINE_MUTEX(mutex);
+	int ret;
+
+	mutex_lock(&mutex);
+	old_period = sysctl_sched_rt_period;
+	old_runtime = sysctl_sched_rt_runtime;
+
+	ret = proc_dointvec(table, write, buffer, lenp, ppos);
+
+	if (!ret && write) {
+		ret = sched_rt_global_validate();
+		if (ret)
+			goto undo;
+
+		ret = sched_rt_global_constraints();
+		if (ret)
+			goto undo;
+
+		ret = sched_dl_global_constraints();
+		if (ret)
+			goto undo;
+
+		sched_rt_do_global();
+		sched_dl_do_global();
+	}
+	if (0) {
+undo:
+		sysctl_sched_rt_period = old_period;
+		sysctl_sched_rt_runtime = old_runtime;
+	}
+	mutex_unlock(&mutex);
+
+	return ret;
+}
+
 int sched_rr_handler(struct ctl_table *table, int write,
 		void __user *buffer, size_t *lenp,
 		loff_t *ppos)
@@ -7560,90 +7527,6 @@ int sched_rr_handler(struct ctl_table *table, int write,
 	return ret;
 }
 
-int sched_rt_handler(struct ctl_table *table, int write,
-		void __user *buffer, size_t *lenp,
-		loff_t *ppos)
-{
-	int ret;
-	int old_period, old_runtime;
-	static DEFINE_MUTEX(mutex);
-
-	mutex_lock(&mutex);
-	old_period = sysctl_sched_rt_period;
-	old_runtime = sysctl_sched_rt_runtime;
-
-	ret = proc_dointvec(table, write, buffer, lenp, ppos);
-
-	if (!ret && write) {
-		ret = sched_rt_global_constraints();
-		if (ret) {
-			sysctl_sched_rt_period = old_period;
-			sysctl_sched_rt_runtime = old_runtime;
-		} else {
-			def_rt_bandwidth.rt_runtime = global_rt_runtime();
-			def_rt_bandwidth.rt_period =
-				ns_to_ktime(global_rt_period());
-		}
-	}
-	mutex_unlock(&mutex);
-
-	return ret;
-}
-
-int sched_dl_handler(struct ctl_table *table, int write,
-		void __user *buffer, size_t *lenp,
-		loff_t *ppos)
-{
-	int ret;
-	int old_period, old_runtime;
-	static DEFINE_MUTEX(mutex);
-	unsigned long flags;
-
-	mutex_lock(&mutex);
-	old_period = sysctl_sched_dl_period;
-	old_runtime = sysctl_sched_dl_runtime;
-
-	ret = proc_dointvec(table, write, buffer, lenp, ppos);
-
-	if (!ret && write) {
-		raw_spin_lock_irqsave(&def_dl_bandwidth.dl_runtime_lock,
-				      flags);
-
-		ret = sched_dl_global_constraints();
-		if (ret) {
-			sysctl_sched_dl_period = old_period;
-			sysctl_sched_dl_runtime = old_runtime;
-		} else {
-			u64 new_bw;
-			int i;
-
-			def_dl_bandwidth.dl_period = global_dl_period();
-			def_dl_bandwidth.dl_runtime = global_dl_runtime();
-			if (global_dl_runtime() == RUNTIME_INF)
-				new_bw = -1;
-			else
-				new_bw = to_ratio(global_dl_period(),
-						  global_dl_runtime());
-			/*
-			 * FIXME: As above...
-			 */
-			for_each_possible_cpu(i) {
-				struct dl_bw *dl_b = dl_bw_of(i);
-
-				raw_spin_lock(&dl_b->lock);
-				dl_b->bw = new_bw;
-				raw_spin_unlock(&dl_b->lock);
-			}
-		}
-
-		raw_spin_unlock_irqrestore(&def_dl_bandwidth.dl_runtime_lock,
-					   flags);
-	}
-	mutex_unlock(&mutex);
-
-	return ret;
-}
-
 #ifdef CONFIG_CGROUP_SCHED
 
 static inline struct task_group *css_tg(struct cgroup_subsys_state *css)
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 0c6b1d089cd4..ee25361becdd 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -63,10 +63,10 @@ void init_dl_bw(struct dl_bw *dl_b)
 {
 	raw_spin_lock_init(&dl_b->lock);
 	raw_spin_lock(&def_dl_bandwidth.dl_runtime_lock);
-	if (global_dl_runtime() == RUNTIME_INF)
+	if (global_rt_runtime() == RUNTIME_INF)
 		dl_b->bw = -1;
 	else
-		dl_b->bw = to_ratio(global_dl_period(), global_dl_runtime());
+		dl_b->bw = to_ratio(global_rt_period(), global_rt_runtime());
 	raw_spin_unlock(&def_dl_bandwidth.dl_runtime_lock);
 	dl_b->total_bw = 0;
 }
@@ -612,6 +612,29 @@ static void update_curr_dl(struct rq *rq)
 		if (!is_leftmost(curr, &rq->dl))
 			resched_task(curr);
 	}
+
+	/*
+	 * Because -- for now -- we share the rt bandwidth, we need to
+	 * account our runtime there too, otherwise actual rt tasks
+	 * would be able to exceed the shared quota.
+	 *
+	 * Account to the root rt group for now.
+	 *
+	 * The solution we're working towards is having the RT groups scheduled
+	 * using deadline servers -- however there's a few nasties to figure
+	 * out before that can happen.
+	 */
+	if (rt_bandwidth_enabled()) {
+		struct rt_rq *rt_rq = &rq->rt;
+
+		raw_spin_lock(&rt_rq->rt_runtime_lock);
+		rt_rq->rt_time += delta_exec;
+		/*
+		 * We'll let actual RT tasks worry about the overflow here, we
+		 * have our own CBS to keep us inline -- see above.
+		 */
+		raw_spin_unlock(&rt_rq->rt_runtime_lock);
+	}
 }
 
 #ifdef CONFIG_SMP
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 2b7421db6c41..890339099550 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -176,7 +176,7 @@ struct dl_bandwidth {
 
 static inline int dl_bandwidth_enabled(void)
 {
-	return sysctl_sched_dl_runtime >= 0;
+	return sysctl_sched_rt_runtime >= 0;
 }
 
 extern struct dl_bw *dl_bw_of(int i);
@@ -186,9 +186,6 @@ struct dl_bw {
 	u64 bw, total_bw;
 };
 
-static inline u64 global_dl_period(void);
-static inline u64 global_dl_runtime(void);
-
 extern struct mutex sched_domains_mutex;
 
 #ifdef CONFIG_CGROUP_SCHED
@@ -953,19 +950,6 @@ static inline u64 global_rt_runtime(void)
 	return (u64)sysctl_sched_rt_runtime * NSEC_PER_USEC;
 }
 
-static inline u64 global_dl_period(void)
-{
-	return (u64)sysctl_sched_dl_period * NSEC_PER_USEC;
-}
-
-static inline u64 global_dl_runtime(void)
-{
-	if (sysctl_sched_dl_runtime < 0)
-		return RUNTIME_INF;
-
-	return (u64)sysctl_sched_dl_runtime * NSEC_PER_USEC;
-}
-
 static inline int task_current(struct rq *rq, struct task_struct *p)
 {
 	return rq->curr == p;
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index c7fb0790ac63..c8da99f905cf 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -414,20 +414,6 @@ static struct ctl_table kern_table[] = {
 		.mode		= 0644,
 		.proc_handler	= sched_rr_handler,
 	},
-	{
-		.procname	= "sched_dl_period_us",
-		.data		= &sysctl_sched_dl_period,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= sched_dl_handler,
-	},
-	{
-		.procname	= "sched_dl_runtime_us",
-		.data		= &sysctl_sched_dl_runtime,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= sched_dl_handler,
-	},
 #ifdef CONFIG_SCHED_AUTOGROUP
 	{
 		.procname	= "sched_autogroup_enabled",