btrfs_delayed_ref_offset
key.offset = btrfs_delayed_ref_offset(node);
u64 offset = btrfs_delayed_ref_offset(node);
u64 offset = btrfs_delayed_ref_offset(node);
ref_offset = btrfs_delayed_ref_offset(ref);
u64 owner_offset = btrfs_delayed_ref_offset(node);
u64 offset = btrfs_delayed_ref_offset(node);
if (btrfs_delayed_ref_offset(node) != check->offset) {
btrfs_delayed_ref_offset(node), check->offset);