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/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index a51a30e..70aa86c 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1188,7 +1188,7 @@
{
struct gendisk *p = data;
*part &= (1 << PARTN_BITS) - 1;
- return &p->dev.kobj;
+ return &disk_to_dev(p)->kobj;
}
static int exact_lock(dev_t dev, void *data)