[PATCH 21/54] kset: convert /sys/hypervisor to use kset_create

Greg Kroah-Hartman
2007-11-03T00:07:18Z

Dynamically create the kset instead of declaring it statically. We also
rename hypervisor_subsys to hypervisor_kset to catch all users of the
variable.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
arch/s390/hypfs/inode.c | 2 +-
drivers/base/hypervisor.c | 14 ++++++++++----
include/linux/kobject.h | 4 ++--
3 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index c022ccc..387d0e4 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -506,7 +506,7 @@ static int __init hypfs_init(void)
goto fail_diag;
}
}
- s390_subsys.kobj.kset = &hypervisor_subsys;
+ s390_subsys.kobj.kset = hypervisor_kset;
rc = subsystem_register(&s390_subsys);
if (rc)
goto fail_sysfs;
diff --git a/drivers/base/hypervisor.c b/drivers/base/hypervisor.c
index 14e75e9..cb2274f 100644
--- a/drivers/base/hypervisor.c
+++ b/drivers/base/hypervisor.c
@@ -2,19 +2,25 @@
* hypervisor.c - /sys/hypervisor subsystem.
*
* Copyright (C) IBM Corp. 2006
+ * Copyright (C) 2007 Greg Kroah-Hartman <gregkh@suse.de>
+ * Copyright (C) 2007 Novell Inc.
*
* This file is released under the GPLv2
*/

#include <linux/kobject.h>
#include <linux/device.h>
-
+#include <linux/err.h>
#include "base.h"

-decl_subsys(hypervisor, NULL);
-EXPORT_SYMBOL_GPL(hypervisor_subsys);
+struct kset *hypervisor_kset;
+EXPORT_SYMBOL_GPL(hypervisor_kset);

int __init hypervisor_init(void)
{
- return subsystem_register(&hypervisor_subsys);
+ hypervisor_kset = kset_create_and_register("hypervisor", NULL,
+ NULL, NULL);
+ if (IS_ERR(hypervisor_kset))
+ return PTR_ERR(hypervisor_kset);
+ return 0;
}
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 4196ad8..63a6bf9 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -190,8 +190,8 @@ struct kset _name##_subsys = { \

/* The global /sys/kernel/ kset for people to chain off of */
extern struct kset *kernel_kset;
-/* The global /sys/hypervisor/ subsystem */
-extern struct kset hypervisor_subsys;
+/* The global /sys/hypervisor/ kset for people to chain off of */
+extern struct kset *hypervisor_kset;

extern int __must_check subsystem_register(struct kset *);
extern void subsystem_unregister(struct kset *);
--
1.5.3.4