2721 	struct async_delayed_refs *async;  in delayed_ref_async_start()  local
2725 	async = container_of(work, struct async_delayed_refs, work);  in delayed_ref_async_start()
2727 	trans = btrfs_join_transaction(async->root);  in delayed_ref_async_start()
2729 		async->error = PTR_ERR(trans);  in delayed_ref_async_start()
2738 	ret = btrfs_run_delayed_refs(trans, async->root, async->count);  in delayed_ref_async_start()
2740 		async->error = ret;  in delayed_ref_async_start()
2742 	ret = btrfs_end_transaction(trans, async->root);  in delayed_ref_async_start()
2743 	if (ret && !async->error)  in delayed_ref_async_start()
2744 		async->error = ret;  in delayed_ref_async_start()
2746 	if (async->sync)  in delayed_ref_async_start()
2747 		complete(&async->wait);  in delayed_ref_async_start()
2749 		kfree(async);  in delayed_ref_async_start()
2755 	struct async_delayed_refs *async;  in btrfs_async_run_delayed_refs()  local
2758 	async = kmalloc(sizeof(*async), GFP_NOFS);  in btrfs_async_run_delayed_refs()
2759 	if (!async)  in btrfs_async_run_delayed_refs()
2762 	async->root = root->fs_info->tree_root;  in btrfs_async_run_delayed_refs()
2763 	async->count = count;  in btrfs_async_run_delayed_refs()
2764 	async->error = 0;  in btrfs_async_run_delayed_refs()
2766 		async->sync = 1;  in btrfs_async_run_delayed_refs()
2768 		async->sync = 0;  in btrfs_async_run_delayed_refs()
2769 	init_completion(&async->wait);  in btrfs_async_run_delayed_refs()
2771 	btrfs_init_work(&async->work, btrfs_extent_refs_helper,  in btrfs_async_run_delayed_refs()
2774 	btrfs_queue_work(root->fs_info->extent_workers, &async->work);  in btrfs_async_run_delayed_refs()
2777 		wait_for_completion(&async->wait);  in btrfs_async_run_delayed_refs()
2778 		ret = async->error;  in btrfs_async_run_delayed_refs()
2779 		kfree(async);  in btrfs_async_run_delayed_refs()