484 	if (update->extent_op) {  in update_existing_head_ref()
485 		if (!existing->extent_op) {  in update_existing_head_ref()
486 			existing->extent_op = update->extent_op;  in update_existing_head_ref()
488 			if (update->extent_op->update_key) {  in update_existing_head_ref()
489 				memcpy(&existing->extent_op->key,  in update_existing_head_ref()
490 				       &update->extent_op->key,  in update_existing_head_ref()
491 				       sizeof(update->extent_op->key));  in update_existing_head_ref()
492 				existing->extent_op->update_key = true;  in update_existing_head_ref()
494 			if (update->extent_op->update_flags) {  in update_existing_head_ref()
495 				existing->extent_op->flags_to_set |=  in update_existing_head_ref()
496 					update->extent_op->flags_to_set;  in update_existing_head_ref()
497 				existing->extent_op->update_flags = true;  in update_existing_head_ref()
499 			btrfs_free_delayed_extent_op(update->extent_op);  in update_existing_head_ref()
712 			       struct btrfs_delayed_extent_op *extent_op,  in btrfs_add_delayed_tree_ref()  argument
725 	BUG_ON(extent_op && extent_op->is_data);  in btrfs_add_delayed_tree_ref()
759 	head_ref->extent_op = extent_op;  in btrfs_add_delayed_tree_ref()
840 	head_ref->extent_op = NULL;  in btrfs_add_delayed_data_ref()
871 				struct btrfs_delayed_extent_op *extent_op)  in btrfs_add_delayed_extent_op()  argument
881 			      BTRFS_UPDATE_DELAYED_HEAD, extent_op->is_data,  in btrfs_add_delayed_extent_op()
883 	head_ref->extent_op = extent_op;  in btrfs_add_delayed_extent_op()