From b863a25d3dca56d4c84c3cdcca089a42f1c088be Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <greg@kroah.com>
Date: Fri, 7 May 2004 00:22:49 -0700
Subject: Add modules to sysfs

This patch adds basic kobject support to struct module, and it creates a
/sys/module directory which contains all of the individual modules.  Each
module currently exports the refcount (if they are unloadable) and any
module paramaters that are marked exportable in sysfs.

Was written by me and Rusty over and over many times during the past 6 months.
---
 include/linux/module.h | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'include/linux/module.h')

diff --git a/include/linux/module.h b/include/linux/module.h
index 0a86652fb1cb..9a3eb2f1f95d 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -16,6 +16,8 @@
 #include <linux/kmod.h>
 #include <linux/elf.h>
 #include <linux/stringify.h>
+#include <linux/kobject.h>
+#include <linux/moduleparam.h>
 #include <asm/local.h>
 
 #include <asm/module.h>
@@ -207,6 +209,23 @@ enum module_state
 	MODULE_STATE_GOING,
 };
 
+/* sysfs stuff */
+struct module_attribute
+{
+	struct attribute attr;
+	struct kernel_param *param;
+};
+
+struct module_kobject
+{
+	/* Everyone should have one of these. */
+	struct kobject kobj;
+
+	/* We always have refcnt, we may have others from module_param(). */
+	unsigned int num_attributes;
+	struct module_attribute attr[0];
+};
+
 struct module
 {
 	enum module_state state;
@@ -217,6 +236,9 @@ struct module
 	/* Unique handle for this module */
 	char name[MODULE_NAME_LEN];
 
+	/* Sysfs stuff. */
+	struct module_kobject *mkobj;
+
 	/* Exported symbols */
 	const struct kernel_symbol *syms;
 	unsigned int num_syms;
@@ -267,6 +289,9 @@ struct module
 
 	/* Destruction function. */
 	void (*exit)(void);
+
+	/* Fake kernel param for refcnt. */
+	struct kernel_param refcnt_param;
 #endif
 
 #ifdef CONFIG_KALLSYMS
-- 
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