diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 9107b387e91fce095ee320dbeed53d5dfe5cb332..f2a9507b27b2ce13a0bb2ca5226d4f7c512295cd 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2182,6 +2182,8 @@ and is between 256 and 4096 characters. It is defined in the file
 
 	sbni=		[NET] Granch SBNI12 leased line adapter
 
+	sched_debug	[KNL] Enables verbose scheduler debug messages.
+
 	sc1200wdt=	[HW,WDT] SC1200 WDT (watchdog) driver
 			Format: <io>[,<timeout>[,<isapnp>]]
 
diff --git a/kernel/sched.c b/kernel/sched.c
index a57c6aee6d4ab6776de4935ebc3132eb9be09926..48ff66a6892d42d3448de5fee33bfcc6e6e54a9b 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -7720,6 +7720,16 @@ early_initcall(migration_init);
 
 #ifdef CONFIG_SCHED_DEBUG
 
+static __read_mostly int sched_domain_debug_enabled;
+
+static int __init sched_domain_debug_setup(char *str)
+{
+	sched_domain_debug_enabled = 1;
+
+	return 0;
+}
+early_param("sched_debug", sched_domain_debug_setup);
+
 static int sched_domain_debug_one(struct sched_domain *sd, int cpu, int level,
 				  struct cpumask *groupmask)
 {
@@ -7806,6 +7816,9 @@ static void sched_domain_debug(struct sched_domain *sd, int cpu)
 	cpumask_var_t groupmask;
 	int level = 0;
 
+	if (!sched_domain_debug_enabled)
+		return;
+
 	if (!sd) {
 		printk(KERN_DEBUG "CPU%d attaching NULL sched-domain.\n", cpu);
 		return;