add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/kernel/ksysfs.c
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@@ -1,11 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * kernel/ksysfs.c - sysfs attributes in /sys/kernel, which
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  * 		     are not related to any other subsystem
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  *
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  * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
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- * 
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- * This file is release under the GPLv2
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- *
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  */
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 #include <linux/kobject.h>
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@@ -140,6 +138,15 @@
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 #endif /* CONFIG_CRASH_CORE */
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+#if defined(CONFIG_PREEMPT_RT)
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+static ssize_t realtime_show(struct kobject *kobj,
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+			     struct kobj_attribute *attr, char *buf)
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+{
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+	return sprintf(buf, "%d\n", 1);
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+}
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+KERNEL_ATTR_RO(realtime);
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+#endif
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+
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 /* whether file capabilities are enabled */
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 static ssize_t fscaps_show(struct kobject *kobj,
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 				  struct kobj_attribute *attr, char *buf)
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@@ -231,6 +238,9 @@
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 	&rcu_expedited_attr.attr,
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 	&rcu_normal_attr.attr,
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 #endif
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+#ifdef CONFIG_PREEMPT_RT
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+	&realtime_attr.attr,
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+#endif
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 	NULL
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 };
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@@ -268,8 +278,4 @@
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 	return error;
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 }
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-#ifdef CONFIG_ROCKCHIP_THUNDER_BOOT
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-pure_initcall(ksysfs_init);
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-#else
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 core_initcall(ksysfs_init);
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-#endif