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block: add internal hd part table references

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We can't use krefs since it's apparently restricted to very basic
reference counting.

This reverts commit e4a683c8.

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Jens Axboe
2011-01-07 08:43:37 +01:00
parent 09e099d4ba
commit 6c23a9681c
7 changed files with 34 additions and 25 deletions
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8
fs/partitions/check.c
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@@ -381,10 +381,8 @@ static void delete_partition_rcu_cb(struct rcu_head *head)
put_device(part_to_dev(part));
}
void __delete_partition(struct kref *ref)
void __delete_partition(struct hd_struct *part)
{
struct hd_struct *part = container_of(ref, struct hd_struct, ref);
call_rcu(&part->rcu_head, delete_partition_rcu_cb);
}
@@ -406,7 +404,7 @@ void delete_partition(struct gendisk *disk, int partno)
kobject_put(part->holder_dir);
device_del(part_to_dev(part));
kref_put(&part->ref, __delete_partition);
hd_struct_put(part);
}
static ssize_t whole_disk_show(struct device *dev,
@@ -505,7 +503,7 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
if (!dev_get_uevent_suppress(ddev))
kobject_uevent(&pdev->kobj, KOBJ_ADD);
kref_init(&p->ref);
hd_ref_init(p);
return p;
out_free_info: