kobject: convert kernel_kset to be a kobject

kernel_kset does not need to be a kset, but a much simpler kobject now
that we have kobj_attributes.

We also rename kernel_kset to kernel_kobj to catch all users of this
symbol with a build error instead of an easy-to-ignore build warning.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/fs/configfs/mount.c b/fs/configfs/mount.c
index c4ee7f0..54bf0db 100644
--- a/fs/configfs/mount.c
+++ b/fs/configfs/mount.c
@@ -140,7 +140,7 @@
 	if (!configfs_dir_cachep)
 		goto out;
 
-	config_kobj = kobject_create_and_add("config", &kernel_kset->kobj);
+	config_kobj = kobject_create_and_add("config", kernel_kobj);
 	if (!config_kobj) {
 		kmem_cache_destroy(configfs_dir_cachep);
 		configfs_dir_cachep = NULL;
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 5ce92c3..97f6381 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -432,7 +432,7 @@
 {
 	int retval;
 
-	debug_kobj = kobject_create_and_add("debug", &kernel_kset->kobj);
+	debug_kobj = kobject_create_and_add("debug", kernel_kobj);
 	if (!debug_kobj)
 		return -EINVAL;
 
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index 0828beb..e64b0dc 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -223,7 +223,7 @@
 	INIT_LIST_HEAD(&lslist);
 	spin_lock_init(&lslist_lock);
 
-	dlm_kset = kset_create_and_add("dlm", NULL, &kernel_kset->kobj);
+	dlm_kset = kset_create_and_add("dlm", NULL, kernel_kobj);
 	if (!dlm_kset) {
 		printk(KERN_WARNING "%s: can not create kset\n", __FUNCTION__);
 		return -ENOMEM;
diff --git a/fs/gfs2/locking/dlm/sysfs.c b/fs/gfs2/locking/dlm/sysfs.c
index 1a92b6f..e5a4fbf 100644
--- a/fs/gfs2/locking/dlm/sysfs.c
+++ b/fs/gfs2/locking/dlm/sysfs.c
@@ -219,7 +219,7 @@
 
 int gdlm_sysfs_init(void)
 {
-	gdlm_kset = kset_create_and_add("lock_dlm", NULL, &kernel_kset->kobj);
+	gdlm_kset = kset_create_and_add("lock_dlm", NULL, kernel_kobj);
 	if (!gdlm_kset) {
 		printk(KERN_WARNING "%s: can not create kset\n", __FUNCTION__);
 		return -ENOMEM;