block: implement and use {disk|part}_to_dev()
Implement {disk|part}_to_dev() and use them to access generic device
instead of directly dereferencing {disk|part}->dev. To make sure no
user is left behind, rename generic devices fields to __dev.
This is in preparation of unifying partition 0 handling with other
partitions.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/block/blk-integrity.c b/block/blk-integrity.c
index d87606e..69023da 100644
--- a/block/blk-integrity.c
+++ b/block/blk-integrity.c
@@ -331,7 +331,8 @@
return -1;
if (kobject_init_and_add(&bi->kobj, &integrity_ktype,
- &disk->dev.kobj, "%s", "integrity")) {
+ &disk_to_dev(disk)->kobj,
+ "%s", "integrity")) {
kmem_cache_free(integrity_cachep, bi);
return -1;
}
@@ -375,7 +376,7 @@
kobject_uevent(&bi->kobj, KOBJ_REMOVE);
kobject_del(&bi->kobj);
- kobject_put(&disk->dev.kobj);
+ kobject_put(&disk_to_dev(disk)->kobj);
kmem_cache_free(integrity_cachep, bi);
}
EXPORT_SYMBOL(blk_integrity_unregister);