btrfs: Use init_delayed_ref_common in add_delayed_data_ref

Use the newly introduced helper and remove the duplicate code.  No
functional changes.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2018-04-24 17:18:19 +03:00 • committed by David Sterba
commit c812c8a857