kset: convert block_subsys to use kset_create
Dynamically create the kset instead of declaring it statically. We also
rename block_subsys to block_kset 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/block/genhd.c b/block/genhd.c
index 32227b7..69aa738 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -17,7 +17,8 @@
#include <linux/buffer_head.h>
#include <linux/mutex.h>
-struct kset block_subsys;
+struct kset *block_kset;
+static struct kset_uevent_ops block_uevent_ops;
static DEFINE_MUTEX(block_subsys_lock);
/*
@@ -221,7 +222,7 @@
mutex_lock(&block_subsys_lock);
/* For each block device... */
- list_for_each_entry(sgp, &block_subsys.list, kobj.entry) {
+ list_for_each_entry(sgp, &block_kset->list, kobj.entry) {
char buf[BDEVNAME_SIZE];
/*
* Don't show empty devices or things that have been surpressed
@@ -270,7 +271,7 @@
loff_t l = *pos;
mutex_lock(&block_subsys_lock);
- list_for_each(p, &block_subsys.list)
+ list_for_each(p, &block_kset->list)
if (!l--)
return list_entry(p, struct gendisk, kobj.entry);
return NULL;
@@ -280,7 +281,7 @@
{
struct list_head *p = ((struct gendisk *)v)->kobj.entry.next;
++*pos;
- return p==&block_subsys.list ? NULL :
+ return p==&block_kset->list ? NULL :
list_entry(p, struct gendisk, kobj.entry);
}
@@ -295,7 +296,7 @@
int n;
char buf[BDEVNAME_SIZE];
- if (&sgp->kobj.entry == block_subsys.list.next)
+ if (&sgp->kobj.entry == block_kset->list.next)
seq_puts(part, "major minor #blocks name\n\n");
/* Don't show non-partitionable removeable devices or empty devices */
@@ -345,15 +346,14 @@
static int __init genhd_device_init(void)
{
- int err;
-
bdev_map = kobj_map_init(base_probe, &block_subsys_lock);
blk_dev_init();
- err = subsystem_register(&block_subsys);
- if (err < 0)
- printk(KERN_WARNING "%s: subsystem_register error: %d\n",
- __FUNCTION__, err);
- return err;
+ block_kset = kset_create_and_add("block", &block_uevent_ops, NULL);
+ if (!block_kset) {
+ printk(KERN_WARNING "%s: kset_create error\n", __FUNCTION__);
+ return -ENOMEM;
+ }
+ return 0;
}
subsys_initcall(genhd_device_init);
@@ -584,8 +584,6 @@
.uevent = block_uevent,
};
-decl_subsys(block, &block_uevent_ops);
-
/*
* aggregate disk stat collector. Uses the same stats that the sysfs
* entries do, above, but makes them available through one seq_file.
@@ -603,7 +601,7 @@
struct list_head *p;
mutex_lock(&block_subsys_lock);
- list_for_each(p, &block_subsys.list)
+ list_for_each(p, &block_kset->list)
if (!k--)
return list_entry(p, struct gendisk, kobj.entry);
return NULL;
@@ -613,7 +611,7 @@
{
struct list_head *p = ((struct gendisk *)v)->kobj.entry.next;
++*pos;
- return p==&block_subsys.list ? NULL :
+ return p==&block_kset->list ? NULL :
list_entry(p, struct gendisk, kobj.entry);
}
@@ -629,7 +627,7 @@
int n = 0;
/*
- if (&sgp->kobj.entry == block_subsys.kset.list.next)
+ if (&sgp->kobj.entry == block_kset->list.next)
seq_puts(s, "major minor name"
" rio rmerge rsect ruse wio wmerge "
"wsect wuse running use aveq"
@@ -721,7 +719,7 @@
}
}
disk->minors = minors;
- disk->kobj.kset = &block_subsys;
+ disk->kobj.kset = block_kset;
disk->kobj.ktype = &ktype_block;
kobject_init(&disk->kobj);
rand_initialize_disk(disk);