X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=kernel%2Fksysfs.c;h=486c68c11bbe23eadac9dd93389253091e80e195;hb=refs%2Fheads%2Faccepted%2Ftizen_unified_x;hp=1d4bc493b2f4b2e94133cec75e569bef3f3ead25;hpb=0b90c5637dfea8a08f87db5dd16000eb679013a3;p=platform%2Fkernel%2Flinux-rpi.git

diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
index 1d4bc49..486c68c 100644
--- a/kernel/ksysfs.c
+++ b/kernel/ksysfs.c
@@ -179,6 +179,15 @@ KERNEL_ATTR_RO(crash_elfcorehdr_size);
 
 #endif /* CONFIG_CRASH_CORE */
 
+#if defined(CONFIG_PREEMPT_RT)
+static ssize_t realtime_show(struct kobject *kobj,
+			     struct kobj_attribute *attr, char *buf)
+{
+	return sprintf(buf, "%d\n", 1);
+}
+KERNEL_ATTR_RO(realtime);
+#endif
+
 /* whether file capabilities are enabled */
 static ssize_t fscaps_show(struct kobject *kobj,
 				  struct kobj_attribute *attr, char *buf)
@@ -275,6 +284,9 @@ static struct attribute * kernel_attrs[] = {
 	&rcu_expedited_attr.attr,
 	&rcu_normal_attr.attr,
 #endif
+#ifdef CONFIG_PREEMPT_RT
+	&realtime_attr.attr,
+#endif
 	NULL
 };