drbd: make drbd known to lsblk: use bd_link_disk_holder
lsblk should be able to pick up stacking device driver relations
involving DRBD conveniently.
Even though upstream kernel since 2011 says
"DON'T USE THIS UNLESS YOU'RE ALREADY USING IT."
a new user has been added since (bcache),
which sets the precedences for us to use it as well.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index a4aa7eb..136fa73 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -1992,7 +1992,7 @@
drbd_bm_cleanup(device);
}
- drbd_free_ldev(device->ldev);
+ drbd_backing_dev_free(device, device->ldev);
device->ldev = NULL;
clear_bit(AL_SUSPENDED, &device->flags);
@@ -2171,7 +2171,7 @@
if (device->this_bdev)
bdput(device->this_bdev);
- drbd_free_ldev(device->ldev);
+ drbd_backing_dev_free(device, device->ldev);
device->ldev = NULL;
drbd_release_all_peer_reqs(device);
@@ -2964,18 +2964,6 @@
return err;
}
-void drbd_free_ldev(struct drbd_backing_dev *ldev)
-{
- if (ldev == NULL)
- return;
-
- blkdev_put(ldev->backing_bdev, FMODE_READ | FMODE_WRITE | FMODE_EXCL);
- blkdev_put(ldev->md_bdev, FMODE_READ | FMODE_WRITE | FMODE_EXCL);
-
- kfree(ldev->disk_conf);
- kfree(ldev);
-}
-
static void drbd_free_one_sock(struct drbd_socket *ds)
{
struct socket *s;