Btrfs: always save ref_root in delayed refs

For consistent backref walking and (later) qgroup calculation the
information to which root a delayed ref belongs is useful even for shared
refs.

Signed-off-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>

1 files changed, 4 insertions, 8 deletions

diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h
index 8316bff18d30..a5fb2bc83732 100644
--- a/fs/btrfs/delayed-ref.h
+++ b/fs/btrfs/delayed-ref.h
@@ -98,19 +98,15 @@ struct btrfs_delayed_ref_head {
 
 struct btrfs_delayed_tree_ref {
         struct btrfs_delayed_ref_node node;
-        union {
-                u64 root;
-                u64 parent;
-        };
+        u64 root;
+        u64 parent;
         int level;
 };
 
 struct btrfs_delayed_data_ref {
         struct btrfs_delayed_ref_node node;
-        union {
-                u64 root;
-                u64 parent;
-        };
+        u64 root;
+        u64 parent;
         u64 objectid;
         u64 offset;
 };