219 	struct btrfs_trans_handle *trans;  in btrfs_ioctl_setflags()  local
342 	trans = btrfs_start_transaction(root, 1);  in btrfs_ioctl_setflags()
343 	if (IS_ERR(trans)) {  in btrfs_ioctl_setflags()
344 		ret = PTR_ERR(trans);  in btrfs_ioctl_setflags()
351 	ret = btrfs_update_inode(trans, root, inode);  in btrfs_ioctl_setflags()
353 	btrfs_end_transaction(trans, root);  in btrfs_ioctl_setflags()
438 	struct btrfs_trans_handle *trans;  in create_subvol()  local
477 	trans = btrfs_start_transaction(root, 0);  in create_subvol()
478 	if (IS_ERR(trans)) {  in create_subvol()
479 		ret = PTR_ERR(trans);  in create_subvol()
484 	trans->block_rsv = &block_rsv;  in create_subvol()
485 	trans->bytes_reserved = block_rsv.size;  in create_subvol()
487 	ret = btrfs_qgroup_inherit(trans, root->fs_info, 0, objectid, inherit);  in create_subvol()
491 	leaf = btrfs_alloc_tree_block(trans, root, 0, objectid, NULL, 0, 0, 0);  in create_subvol()
499 	btrfs_set_header_generation(leaf, trans->transid);  in create_subvol()
524 	btrfs_set_root_generation(&root_item, trans->transid);  in create_subvol()
537 	btrfs_set_root_ctransid(&root_item, trans->transid);  in create_subvol()
538 	btrfs_set_root_otransid(&root_item, trans->transid);  in create_subvol()
549 	ret = btrfs_insert_root(trans, root->fs_info->tree_root, &key,  in create_subvol()
558 		btrfs_abort_transaction(trans, root, ret);  in create_subvol()
562 	btrfs_record_root_in_trans(trans, new_root);  in create_subvol()
564 	ret = btrfs_create_subvol_root(trans, new_root, root, new_dirid);  in create_subvol()
567 		btrfs_abort_transaction(trans, root, ret);  in create_subvol()
580 		btrfs_abort_transaction(trans, root, ret);  in create_subvol()
584 	ret = btrfs_insert_dir_item(trans, root,  in create_subvol()
588 		btrfs_abort_transaction(trans, root, ret);  in create_subvol()
593 	ret = btrfs_update_inode(trans, root, dir);  in create_subvol()
596 	ret = btrfs_add_root_ref(trans, root->fs_info->tree_root,  in create_subvol()
601 	ret = btrfs_uuid_tree_add(trans, root->fs_info->uuid_root,  in create_subvol()
605 		btrfs_abort_transaction(trans, root, ret);  in create_subvol()
608 	trans->block_rsv = NULL;  in create_subvol()
609 	trans->bytes_reserved = 0;  in create_subvol()
613 		*async_transid = trans->transid;  in create_subvol()
614 		err = btrfs_commit_transaction_async(trans, root, 1);  in create_subvol()
616 			err = btrfs_commit_transaction(trans, root);  in create_subvol()
618 		err = btrfs_commit_transaction(trans, root);  in create_subvol()
656 	struct btrfs_trans_handle *trans;  in create_snapshot()  local
701 	trans = btrfs_start_transaction(root, 0);  in create_snapshot()
702 	if (IS_ERR(trans)) {  in create_snapshot()
703 		ret = PTR_ERR(trans);  in create_snapshot()
709 		 &trans->transaction->pending_snapshots);  in create_snapshot()
712 		*async_transid = trans->transid;  in create_snapshot()
713 		ret = btrfs_commit_transaction_async(trans,  in create_snapshot()
716 			ret = btrfs_commit_transaction(trans, root);  in create_snapshot()
718 		ret = btrfs_commit_transaction(trans,  in create_snapshot()
1478 	struct btrfs_trans_handle *trans;  in btrfs_ioctl_resize()  local
1594 		trans = btrfs_start_transaction(root, 0);  in btrfs_ioctl_resize()
1595 		if (IS_ERR(trans)) {  in btrfs_ioctl_resize()
1596 			ret = PTR_ERR(trans);  in btrfs_ioctl_resize()
1599 		ret = btrfs_grow_device(trans, device, new_size);  in btrfs_ioctl_resize()
1600 		btrfs_commit_transaction(trans, root);  in btrfs_ioctl_resize()
1776 	struct btrfs_trans_handle *trans;  in btrfs_ioctl_subvol_setflags()  local
1838 	trans = btrfs_start_transaction(root, 1);  in btrfs_ioctl_subvol_setflags()
1839 	if (IS_ERR(trans)) {  in btrfs_ioctl_subvol_setflags()
1840 		ret = PTR_ERR(trans);  in btrfs_ioctl_subvol_setflags()
1844 	ret = btrfs_update_root(trans, root->fs_info->tree_root,  in btrfs_ioctl_subvol_setflags()
1847 	btrfs_commit_transaction(trans, root);  in btrfs_ioctl_subvol_setflags()
2340 	struct btrfs_trans_handle *trans;  in btrfs_ioctl_snap_destroy()  local
2463 	trans = btrfs_start_transaction(root, 0);  in btrfs_ioctl_snap_destroy()
2464 	if (IS_ERR(trans)) {  in btrfs_ioctl_snap_destroy()
2465 		err = PTR_ERR(trans);  in btrfs_ioctl_snap_destroy()
2468 	trans->block_rsv = &block_rsv;  in btrfs_ioctl_snap_destroy()
2469 	trans->bytes_reserved = block_rsv.size;  in btrfs_ioctl_snap_destroy()
2471 	ret = btrfs_unlink_subvol(trans, root, dir,  in btrfs_ioctl_snap_destroy()
2477 		btrfs_abort_transaction(trans, root, ret);  in btrfs_ioctl_snap_destroy()
2481 	btrfs_record_root_in_trans(trans, dest);  in btrfs_ioctl_snap_destroy()
2489 		ret = btrfs_insert_orphan_item(trans,  in btrfs_ioctl_snap_destroy()
2493 			btrfs_abort_transaction(trans, root, ret);  in btrfs_ioctl_snap_destroy()
2499 	ret = btrfs_uuid_tree_rem(trans, root->fs_info->uuid_root,  in btrfs_ioctl_snap_destroy()
2503 		btrfs_abort_transaction(trans, root, ret);  in btrfs_ioctl_snap_destroy()
2508 		ret = btrfs_uuid_tree_rem(trans, root->fs_info->uuid_root,  in btrfs_ioctl_snap_destroy()
2513 			btrfs_abort_transaction(trans, root, ret);  in btrfs_ioctl_snap_destroy()
2520 	trans->block_rsv = NULL;  in btrfs_ioctl_snap_destroy()
2521 	trans->bytes_reserved = 0;  in btrfs_ioctl_snap_destroy()
2522 	ret = btrfs_end_transaction(trans, root);  in btrfs_ioctl_snap_destroy()
3282 static int clone_finish_inode_update(struct btrfs_trans_handle *trans,  in clone_finish_inode_update()  argument
3304 	ret = btrfs_update_inode(trans, root, inode);  in clone_finish_inode_update()
3306 		btrfs_abort_transaction(trans, root, ret);  in clone_finish_inode_update()
3307 		btrfs_end_transaction(trans, root);  in clone_finish_inode_update()
3310 	ret = btrfs_end_transaction(trans, root);  in clone_finish_inode_update()
3316 				    const struct btrfs_trans_handle *trans,  in clone_update_extent_map()  argument
3352 		em->generation = trans->transid;  in clone_update_extent_map()
3399 				    struct btrfs_trans_handle *trans,  in clone_copy_inline_extent()  argument
3494 	ret = btrfs_drop_extents(trans, root, dst, drop_start, aligned_end, 1);  in clone_copy_inline_extent()
3497 	ret = btrfs_insert_empty_item(trans, root, path, new_key, size);  in clone_copy_inline_extent()
3534 	struct btrfs_trans_handle *trans;  in btrfs_clone()  local
3675 			trans = btrfs_start_transaction(root, 3);  in btrfs_clone()
3676 			if (IS_ERR(trans)) {  in btrfs_clone()
3677 				ret = PTR_ERR(trans);  in btrfs_clone()
3698 				ret = btrfs_drop_extents(trans, root, inode,  in btrfs_clone()
3704 						btrfs_abort_transaction(trans,  in btrfs_clone()
3706 					btrfs_end_transaction(trans, root);  in btrfs_clone()
3710 				ret = btrfs_insert_empty_item(trans, root, path,  in btrfs_clone()
3713 					btrfs_abort_transaction(trans, root,  in btrfs_clone()
3715 					btrfs_end_transaction(trans, root);  in btrfs_clone()
3739 					ret = btrfs_inc_extent_ref(trans, root,  in btrfs_clone()
3745 						btrfs_abort_transaction(trans,  in btrfs_clone()
3748 						btrfs_end_transaction(trans,  in btrfs_clone()
3768 					btrfs_end_transaction(trans, root);  in btrfs_clone()
3775 							       trans, path,  in btrfs_clone()
3782 						btrfs_abort_transaction(trans,  in btrfs_clone()
3785 					btrfs_end_transaction(trans, root);  in btrfs_clone()
3794 				clone_update_extent_map(inode, trans,  in btrfs_clone()
3798 			clone_update_extent_map(inode, trans, path, 0, 0);  in btrfs_clone()
3805 			ret = clone_finish_inode_update(trans, inode,  in btrfs_clone()
3830 		trans = btrfs_start_transaction(root, 2);  in btrfs_clone()
3831 		if (IS_ERR(trans)) {  in btrfs_clone()
3832 			ret = PTR_ERR(trans);  in btrfs_clone()
3835 		ret = btrfs_drop_extents(trans, root, inode,  in btrfs_clone()
3839 				btrfs_abort_transaction(trans, root, ret);  in btrfs_clone()
3840 			btrfs_end_transaction(trans, root);  in btrfs_clone()
3843 		clone_update_extent_map(inode, trans, NULL, last_dest_end,  in btrfs_clone()
3845 		ret = clone_finish_inode_update(trans, inode, destoff + len,  in btrfs_clone()
4030 	struct btrfs_trans_handle *trans;  in btrfs_ioctl_trans_start()  local
4052 	trans = btrfs_start_ioctl_transaction(root);  in btrfs_ioctl_trans_start()
4053 	if (IS_ERR(trans))  in btrfs_ioctl_trans_start()
4056 	file->private_data = trans;  in btrfs_ioctl_trans_start()
4072 	struct btrfs_trans_handle *trans;  in btrfs_ioctl_default_subvol()  local
4112 	trans = btrfs_start_transaction(root, 1);  in btrfs_ioctl_default_subvol()
4113 	if (IS_ERR(trans)) {  in btrfs_ioctl_default_subvol()
4115 		ret = PTR_ERR(trans);  in btrfs_ioctl_default_subvol()
4120 	di = btrfs_lookup_dir_item(trans, root->fs_info->tree_root, path,  in btrfs_ioctl_default_subvol()
4124 		btrfs_end_transaction(trans, root);  in btrfs_ioctl_default_subvol()
4137 	btrfs_end_transaction(trans, root);  in btrfs_ioctl_default_subvol()
4309 	struct btrfs_trans_handle *trans;  in btrfs_ioctl_trans_end()  local
4311 	trans = file->private_data;  in btrfs_ioctl_trans_end()
4312 	if (!trans)  in btrfs_ioctl_trans_end()
4316 	btrfs_end_transaction(trans, root);  in btrfs_ioctl_trans_end()
4327 	struct btrfs_trans_handle *trans;  in btrfs_ioctl_start_sync()  local
4331 	trans = btrfs_attach_transaction_barrier(root);  in btrfs_ioctl_start_sync()
4332 	if (IS_ERR(trans)) {  in btrfs_ioctl_start_sync()
4333 		if (PTR_ERR(trans) != -ENOENT)  in btrfs_ioctl_start_sync()
4334 			return PTR_ERR(trans);  in btrfs_ioctl_start_sync()
4340 	transid = trans->transid;  in btrfs_ioctl_start_sync()
4341 	ret = btrfs_commit_transaction_async(trans, root, 0);  in btrfs_ioctl_start_sync()
4343 		btrfs_end_transaction(trans, root);  in btrfs_ioctl_start_sync()
4862 	struct btrfs_trans_handle *trans = NULL;  in btrfs_ioctl_quota_ctl()  local
4880 	trans = btrfs_start_transaction(root->fs_info->tree_root, 2);  in btrfs_ioctl_quota_ctl()
4881 	if (IS_ERR(trans)) {  in btrfs_ioctl_quota_ctl()
4882 		ret = PTR_ERR(trans);  in btrfs_ioctl_quota_ctl()
4888 		ret = btrfs_quota_enable(trans, root->fs_info);  in btrfs_ioctl_quota_ctl()
4891 		ret = btrfs_quota_disable(trans, root->fs_info);  in btrfs_ioctl_quota_ctl()
4898 	err = btrfs_commit_transaction(trans, root->fs_info->tree_root);  in btrfs_ioctl_quota_ctl()
4913 	struct btrfs_trans_handle *trans;  in btrfs_ioctl_qgroup_assign()  local
4930 	trans = btrfs_join_transaction(root);  in btrfs_ioctl_qgroup_assign()
4931 	if (IS_ERR(trans)) {  in btrfs_ioctl_qgroup_assign()
4932 		ret = PTR_ERR(trans);  in btrfs_ioctl_qgroup_assign()
4938 		ret = btrfs_add_qgroup_relation(trans, root->fs_info,  in btrfs_ioctl_qgroup_assign()
4941 		ret = btrfs_del_qgroup_relation(trans, root->fs_info,  in btrfs_ioctl_qgroup_assign()
4946 	err = btrfs_run_qgroups(trans, root->fs_info);  in btrfs_ioctl_qgroup_assign()
4950 	err = btrfs_end_transaction(trans, root);  in btrfs_ioctl_qgroup_assign()
4965 	struct btrfs_trans_handle *trans;  in btrfs_ioctl_qgroup_create()  local
4987 	trans = btrfs_join_transaction(root);  in btrfs_ioctl_qgroup_create()
4988 	if (IS_ERR(trans)) {  in btrfs_ioctl_qgroup_create()
4989 		ret = PTR_ERR(trans);  in btrfs_ioctl_qgroup_create()
4995 		ret = btrfs_create_qgroup(trans, root->fs_info, sa->qgroupid);  in btrfs_ioctl_qgroup_create()
4997 		ret = btrfs_remove_qgroup(trans, root->fs_info, sa->qgroupid);  in btrfs_ioctl_qgroup_create()
5000 	err = btrfs_end_transaction(trans, root);  in btrfs_ioctl_qgroup_create()
5015 	struct btrfs_trans_handle *trans;  in btrfs_ioctl_qgroup_limit()  local
5033 	trans = btrfs_join_transaction(root);  in btrfs_ioctl_qgroup_limit()
5034 	if (IS_ERR(trans)) {  in btrfs_ioctl_qgroup_limit()
5035 		ret = PTR_ERR(trans);  in btrfs_ioctl_qgroup_limit()
5046 	ret = btrfs_limit_qgroup(trans, root->fs_info, qgroupid, &sa->lim);  in btrfs_ioctl_qgroup_limit()
5048 	err = btrfs_end_transaction(trans, root);  in btrfs_ioctl_qgroup_limit()
5133 	struct btrfs_trans_handle *trans;  in _btrfs_ioctl_set_received_subvol()  local
5161 	trans = btrfs_start_transaction(root, 3);  in _btrfs_ioctl_set_received_subvol()
5162 	if (IS_ERR(trans)) {  in _btrfs_ioctl_set_received_subvol()
5163 		ret = PTR_ERR(trans);  in _btrfs_ioctl_set_received_subvol()
5164 		trans = NULL;  in _btrfs_ioctl_set_received_subvol()
5168 	sa->rtransid = trans->transid;  in _btrfs_ioctl_set_received_subvol()
5176 		btrfs_uuid_tree_rem(trans, root->fs_info->uuid_root,  in _btrfs_ioctl_set_received_subvol()
5188 	ret = btrfs_update_root(trans, root->fs_info->tree_root,  in _btrfs_ioctl_set_received_subvol()
5191 		btrfs_end_transaction(trans, root);  in _btrfs_ioctl_set_received_subvol()
5195 		ret = btrfs_uuid_tree_add(trans, root->fs_info->uuid_root,  in _btrfs_ioctl_set_received_subvol()
5200 			btrfs_abort_transaction(trans, root, ret);  in _btrfs_ioctl_set_received_subvol()
5204 	ret = btrfs_commit_transaction(trans, root);  in _btrfs_ioctl_set_received_subvol()
5206 		btrfs_abort_transaction(trans, root, ret);  in _btrfs_ioctl_set_received_subvol()
5324 	struct btrfs_trans_handle *trans;  in btrfs_ioctl_set_fslabel()  local
5344 	trans = btrfs_start_transaction(root, 0);  in btrfs_ioctl_set_fslabel()
5345 	if (IS_ERR(trans)) {  in btrfs_ioctl_set_fslabel()
5346 		ret = PTR_ERR(trans);  in btrfs_ioctl_set_fslabel()
5353 	ret = btrfs_commit_transaction(trans, root);  in btrfs_ioctl_set_fslabel()
5466 	struct btrfs_trans_handle *trans;  in btrfs_ioctl_set_features()  local
5496 	trans = btrfs_start_transaction(root, 0);  in btrfs_ioctl_set_features()
5497 	if (IS_ERR(trans))  in btrfs_ioctl_set_features()
5498 		return PTR_ERR(trans);  in btrfs_ioctl_set_features()
5517 	return btrfs_commit_transaction(trans, root);  in btrfs_ioctl_set_features()