325 		if (root->fs_info->compress_type == BTRFS_COMPRESS_LZO)  in btrfs_ioctl_setflags()
374 	struct btrfs_fs_info *fs_info = btrfs_sb(file_inode(file)->i_sb);  in btrfs_ioctl_fitrim()  local
380 	u64 total_bytes = btrfs_super_total_bytes(fs_info->super_copy);  in btrfs_ioctl_fitrim()
387 	list_for_each_entry_rcu(device, &fs_info->fs_devices->devices,  in btrfs_ioctl_fitrim()
405 	    range.len < fs_info->sb->s_blocksize)  in btrfs_ioctl_fitrim()
410 	ret = btrfs_trim_fs(fs_info->tree_root, &range);  in btrfs_ioctl_fitrim()
455 	ret = btrfs_find_free_objectid(root->fs_info->tree_root, &objectid);  in create_subvol()
486 	ret = btrfs_qgroup_inherit(trans, root->fs_info, 0, objectid, inherit);  in create_subvol()
502 	write_extent_buffer(leaf, root->fs_info->fsid, btrfs_header_fsid(),  in create_subvol()
504 	write_extent_buffer(leaf, root->fs_info->chunk_tree_uuid,  in create_subvol()
548 	ret = btrfs_insert_root(trans, root->fs_info->tree_root, &key,  in create_subvol()
554 	new_root = btrfs_read_fs_root_no_name(root->fs_info, &key);  in create_subvol()
595 	ret = btrfs_add_root_ref(trans, root->fs_info->tree_root,  in create_subvol()
600 	ret = btrfs_uuid_tree_add(trans, root->fs_info->uuid_root,  in create_subvol()
706 	spin_lock(&root->fs_info->trans_lock);  in create_snapshot()
709 	spin_unlock(&root->fs_info->trans_lock);  in create_snapshot()
713 				     root->fs_info->extent_root, 1);  in create_snapshot()
718 					       root->fs_info->extent_root);  in create_snapshot()
855 	down_read(&BTRFS_I(dir)->root->fs_info->subvol_sem);  in btrfs_mksubvol()
870 	up_read(&BTRFS_I(dir)->root->fs_info->subvol_sem);  in btrfs_mksubvol()
1343 		if (btrfs_defrag_cancelled(root->fs_info)) {  in btrfs_defrag_file()
1433 		atomic_inc(&root->fs_info->async_submit_draining);  in btrfs_defrag_file()
1434 		while (atomic_read(&root->fs_info->nr_async_submits) ||  in btrfs_defrag_file()
1435 		      atomic_read(&root->fs_info->async_delalloc_pages)) {  in btrfs_defrag_file()
1436 			wait_event(root->fs_info->async_submit_wait,  in btrfs_defrag_file()
1437 			   (atomic_read(&root->fs_info->nr_async_submits) == 0 &&  in btrfs_defrag_file()
1438 			    atomic_read(&root->fs_info->async_delalloc_pages) == 0));  in btrfs_defrag_file()
1440 		atomic_dec(&root->fs_info->async_submit_draining);  in btrfs_defrag_file()
1444 		btrfs_set_fs_incompat(root->fs_info, COMPRESS_LZO);  in btrfs_defrag_file()
1484 	if (atomic_xchg(&root->fs_info->mutually_exclusive_operation_running,  in btrfs_ioctl_resize()
1490 	mutex_lock(&root->fs_info->volume_mutex);  in btrfs_ioctl_resize()
1512 		btrfs_info(root->fs_info, "resizing devid %llu", devid);  in btrfs_ioctl_resize()
1515 	device = btrfs_find_device(root->fs_info, devid, NULL, NULL);  in btrfs_ioctl_resize()
1517 		btrfs_info(root->fs_info, "resizer unable to find device %llu",  in btrfs_ioctl_resize()
1524 		btrfs_info(root->fs_info,  in btrfs_ioctl_resize()
1599 	mutex_unlock(&root->fs_info->volume_mutex);  in btrfs_ioctl_resize()
1600 	atomic_set(&root->fs_info->mutually_exclusive_operation_running, 0);  in btrfs_ioctl_resize()
1642 			btrfs_info(BTRFS_I(src_inode)->root->fs_info,  in btrfs_ioctl_snap_create_transid()
1751 	down_read(&root->fs_info->subvol_sem);  in btrfs_ioctl_subvol_getflags()
1754 	up_read(&root->fs_info->subvol_sem);  in btrfs_ioctl_subvol_getflags()
1799 	down_write(&root->fs_info->subvol_sem);  in btrfs_ioctl_subvol_setflags()
1821 			btrfs_warn(root->fs_info,  in btrfs_ioctl_subvol_setflags()
1835 	ret = btrfs_update_root(trans, root->fs_info->tree_root,  in btrfs_ioctl_subvol_setflags()
1843 	up_write(&root->fs_info->subvol_sem);  in btrfs_ioctl_subvol_setflags()
1866 	dir_id = btrfs_super_root_dir(root->fs_info->super_copy);  in may_destroy_subvol()
1867 	di = btrfs_lookup_dir_item(NULL, root->fs_info->tree_root, path,  in may_destroy_subvol()
1873 			btrfs_err(root->fs_info, "deleting default subvolume "  in may_destroy_subvol()
1884 	ret = btrfs_search_slot(NULL, root->fs_info->tree_root,  in may_destroy_subvol()
2054 	struct btrfs_fs_info *info = BTRFS_I(inode)->root->fs_info;  in search_ioctl()
2292 	ret = btrfs_search_path_in_tree(BTRFS_I(inode)->root->fs_info,  in btrfs_ioctl_ino_lookup()
2413 		btrfs_warn(root->fs_info,  in btrfs_ioctl_snap_destroy()
2420 	down_write(&root->fs_info->subvol_sem);  in btrfs_ioctl_snap_destroy()
2463 					root->fs_info->tree_root,  in btrfs_ioctl_snap_destroy()
2472 	ret = btrfs_uuid_tree_rem(trans, root->fs_info->uuid_root,  in btrfs_ioctl_snap_destroy()
2481 		ret = btrfs_uuid_tree_rem(trans, root->fs_info->uuid_root,  in btrfs_ioctl_snap_destroy()
2502 	up_write(&root->fs_info->subvol_sem);  in btrfs_ioctl_snap_destroy()
2560 		ret = btrfs_defrag_root(root->fs_info->extent_root);  in btrfs_ioctl_defrag()
2612 	if (atomic_xchg(&root->fs_info->mutually_exclusive_operation_running,  in btrfs_ioctl_add_dev()
2617 	mutex_lock(&root->fs_info->volume_mutex);  in btrfs_ioctl_add_dev()
2628 		btrfs_info(root->fs_info, "disk added %s",vol_args->name);  in btrfs_ioctl_add_dev()
2632 	mutex_unlock(&root->fs_info->volume_mutex);  in btrfs_ioctl_add_dev()
2633 	atomic_set(&root->fs_info->mutually_exclusive_operation_running, 0);  in btrfs_ioctl_add_dev()
2658 	if (atomic_xchg(&root->fs_info->mutually_exclusive_operation_running,  in btrfs_ioctl_rm_dev()
2664 	mutex_lock(&root->fs_info->volume_mutex);  in btrfs_ioctl_rm_dev()
2666 	mutex_unlock(&root->fs_info->volume_mutex);  in btrfs_ioctl_rm_dev()
2667 	atomic_set(&root->fs_info->mutually_exclusive_operation_running, 0);  in btrfs_ioctl_rm_dev()
2670 		btrfs_info(root->fs_info, "disk deleted %s",vol_args->name);  in btrfs_ioctl_rm_dev()
2684 	struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices;  in btrfs_ioctl_fs_info()
2693 	memcpy(&fi_args->fsid, root->fs_info->fsid, sizeof(fi_args->fsid));  in btrfs_ioctl_fs_info()
2701 	fi_args->nodesize = root->fs_info->super_copy->nodesize;  in btrfs_ioctl_fs_info()
2702 	fi_args->sectorsize = root->fs_info->super_copy->sectorsize;  in btrfs_ioctl_fs_info()
2703 	fi_args->clone_alignment = root->fs_info->super_copy->sectorsize;  in btrfs_ioctl_fs_info()
2716 	struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices;  in btrfs_ioctl_dev_info()
2728 	dev = btrfs_find_device(root->fs_info, di_args->devid, s_uuid, NULL);  in btrfs_ioctl_dev_info()
2886 	u64 bs = BTRFS_I(inode)->root->fs_info->sb->s_blocksize;  in extent_same_check_offsets()
2953 	u64 bs = BTRFS_I(src)->root->fs_info->sb->s_blocksize;  in btrfs_ioctl_file_extent_same()
3063 	if (!root->fs_info->quota_enabled)  in check_ref()
3066 	btrfs_get_tree_mod_seq(root->fs_info, &tree_mod_seq_elem);  in check_ref()
3067 	ret = btrfs_find_all_roots(trans, root->fs_info, disko,  in check_ref()
3081 	btrfs_put_tree_mod_seq(root->fs_info, &tree_mod_seq_elem);  in check_ref()
3689 	u64 bs = root->fs_info->sb->s_blocksize;  in btrfs_ioctl_clone()
3884 	atomic_inc(&root->fs_info->open_ioctl_trans);  in btrfs_ioctl_trans_start()
3895 	atomic_dec(&root->fs_info->open_ioctl_trans);  in btrfs_ioctl_trans_start()
3934 	new_root = btrfs_read_fs_root_no_name(root->fs_info, &location);  in btrfs_ioctl_default_subvol()
3954 	dir_id = btrfs_super_root_dir(root->fs_info->super_copy);  in btrfs_ioctl_default_subvol()
3955 	di = btrfs_lookup_dir_item(trans, root->fs_info->tree_root, path,  in btrfs_ioctl_default_subvol()
3960 		btrfs_err(new_root->fs_info, "Umm, you don't have the default dir"  in btrfs_ioctl_default_subvol()
3971 	btrfs_set_fs_incompat(root->fs_info, DEFAULT_SUBVOL);  in btrfs_ioctl_default_subvol()
4022 		list_for_each_entry_rcu(tmp, &root->fs_info->space_info,  in btrfs_ioctl_space_info()
4078 		list_for_each_entry_rcu(tmp, &root->fs_info->space_info,  in btrfs_ioctl_space_info()
4109 		struct btrfs_block_rsv *block_rsv = &root->fs_info->global_block_rsv;  in btrfs_ioctl_space_info()
4153 	atomic_dec(&root->fs_info->open_ioctl_trans);  in btrfs_ioctl_trans_end()
4172 		transid = root->fs_info->last_trans_committed;  in btrfs_ioctl_start_sync()
4221 	ret = btrfs_scrub_dev(root->fs_info, sa->devid, sa->start, sa->end,  in btrfs_ioctl_scrub()
4240 	return btrfs_scrub_cancel(root->fs_info);  in btrfs_ioctl_scrub_cancel()
4303 		if (root->fs_info->sb->s_flags & MS_RDONLY) {  in btrfs_ioctl_dev_replace()
4308 			&root->fs_info->mutually_exclusive_operation_running,  in btrfs_ioctl_dev_replace()
4314 			 &root->fs_info->mutually_exclusive_operation_running,  in btrfs_ioctl_dev_replace()
4319 		btrfs_dev_replace_status(root->fs_info, p);  in btrfs_ioctl_dev_replace()
4323 		ret = btrfs_dev_replace_cancel(root->fs_info, p);  in btrfs_ioctl_dev_replace()
4449 	ret = iterate_inodes_from_logical(loi->logical, root->fs_info, path,  in btrfs_ioctl_logical_to_ino()
4469 void update_ioctl_balance_args(struct btrfs_fs_info *fs_info, int lock,  in update_ioctl_balance_args()  argument
4472 	struct btrfs_balance_control *bctl = fs_info->balance_ctl;  in update_ioctl_balance_args()
4476 	if (atomic_read(&fs_info->balance_running))  in update_ioctl_balance_args()
4478 	if (atomic_read(&fs_info->balance_pause_req))  in update_ioctl_balance_args()
4480 	if (atomic_read(&fs_info->balance_cancel_req))  in update_ioctl_balance_args()
4488 		spin_lock(&fs_info->balance_lock);  in update_ioctl_balance_args()
4490 		spin_unlock(&fs_info->balance_lock);  in update_ioctl_balance_args()
4499 	struct btrfs_fs_info *fs_info = root->fs_info;  in btrfs_ioctl_balance()  local
4513 	if (!atomic_xchg(&fs_info->mutually_exclusive_operation_running, 1)) {  in btrfs_ioctl_balance()
4514 		mutex_lock(&fs_info->volume_mutex);  in btrfs_ioctl_balance()
4515 		mutex_lock(&fs_info->balance_mutex);  in btrfs_ioctl_balance()
4526 	mutex_lock(&fs_info->balance_mutex);  in btrfs_ioctl_balance()
4527 	if (fs_info->balance_ctl) {  in btrfs_ioctl_balance()
4529 		if (!atomic_read(&fs_info->balance_running)) {  in btrfs_ioctl_balance()
4530 			mutex_unlock(&fs_info->balance_mutex);  in btrfs_ioctl_balance()
4531 			if (!mutex_trylock(&fs_info->volume_mutex))  in btrfs_ioctl_balance()
4533 			mutex_lock(&fs_info->balance_mutex);  in btrfs_ioctl_balance()
4535 			if (fs_info->balance_ctl &&  in btrfs_ioctl_balance()
4536 			    !atomic_read(&fs_info->balance_running)) {  in btrfs_ioctl_balance()
4542 			mutex_unlock(&fs_info->balance_mutex);  in btrfs_ioctl_balance()
4543 			mutex_unlock(&fs_info->volume_mutex);  in btrfs_ioctl_balance()
4547 			mutex_unlock(&fs_info->balance_mutex);  in btrfs_ioctl_balance()
4553 		mutex_unlock(&fs_info->balance_mutex);  in btrfs_ioctl_balance()
4559 	BUG_ON(!atomic_read(&fs_info->mutually_exclusive_operation_running));  in btrfs_ioctl_balance()
4569 			if (!fs_info->balance_ctl) {  in btrfs_ioctl_balance()
4574 			bctl = fs_info->balance_ctl;  in btrfs_ioctl_balance()
4575 			spin_lock(&fs_info->balance_lock);  in btrfs_ioctl_balance()
4577 			spin_unlock(&fs_info->balance_lock);  in btrfs_ioctl_balance()
4585 	if (fs_info->balance_ctl) {  in btrfs_ioctl_balance()
4596 	bctl->fs_info = fs_info;  in btrfs_ioctl_balance()
4636 	mutex_unlock(&fs_info->balance_mutex);  in btrfs_ioctl_balance()
4637 	mutex_unlock(&fs_info->volume_mutex);  in btrfs_ioctl_balance()
4639 		atomic_set(&fs_info->mutually_exclusive_operation_running, 0);  in btrfs_ioctl_balance()
4652 		return btrfs_pause_balance(root->fs_info);  in btrfs_ioctl_balance_ctl()
4654 		return btrfs_cancel_balance(root->fs_info);  in btrfs_ioctl_balance_ctl()
4663 	struct btrfs_fs_info *fs_info = root->fs_info;  in btrfs_ioctl_balance_progress()  local
4670 	mutex_lock(&fs_info->balance_mutex);  in btrfs_ioctl_balance_progress()
4671 	if (!fs_info->balance_ctl) {  in btrfs_ioctl_balance_progress()
4682 	update_ioctl_balance_args(fs_info, 1, bargs);  in btrfs_ioctl_balance_progress()
4689 	mutex_unlock(&fs_info->balance_mutex);  in btrfs_ioctl_balance_progress()
4714 	down_write(&root->fs_info->subvol_sem);  in btrfs_ioctl_quota_ctl()
4715 	trans = btrfs_start_transaction(root->fs_info->tree_root, 2);  in btrfs_ioctl_quota_ctl()
4723 		ret = btrfs_quota_enable(trans, root->fs_info);  in btrfs_ioctl_quota_ctl()
4726 		ret = btrfs_quota_disable(trans, root->fs_info);  in btrfs_ioctl_quota_ctl()
4733 	err = btrfs_commit_transaction(trans, root->fs_info->tree_root);  in btrfs_ioctl_quota_ctl()
4738 	up_write(&root->fs_info->subvol_sem);  in btrfs_ioctl_quota_ctl()
4773 		ret = btrfs_add_qgroup_relation(trans, root->fs_info,  in btrfs_ioctl_qgroup_assign()
4776 		ret = btrfs_del_qgroup_relation(trans, root->fs_info,  in btrfs_ioctl_qgroup_assign()
4781 	err = btrfs_run_qgroups(trans, root->fs_info);  in btrfs_ioctl_qgroup_assign()
4783 		btrfs_error(root->fs_info, ret,  in btrfs_ioctl_qgroup_assign()
4830 		ret = btrfs_create_qgroup(trans, root->fs_info, sa->qgroupid);  in btrfs_ioctl_qgroup_create()
4832 		ret = btrfs_remove_qgroup(trans, root->fs_info, sa->qgroupid);  in btrfs_ioctl_qgroup_create()
4881 	ret = btrfs_limit_qgroup(trans, root->fs_info, qgroupid, &sa->lim);  in btrfs_ioctl_qgroup_limit()
4918 	ret = btrfs_qgroup_rescan(root->fs_info);  in btrfs_ioctl_quota_rescan()
4940 	if (root->fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN) {  in btrfs_ioctl_quota_rescan_status()
4942 		qsa->progress = root->fs_info->qgroup_rescan_progress.objectid;  in btrfs_ioctl_quota_rescan_status()
4959 	return btrfs_qgroup_wait_for_completion(root->fs_info);  in btrfs_ioctl_quota_rescan_wait()
4980 	down_write(&root->fs_info->subvol_sem);  in _btrfs_ioctl_set_received_subvol()
5011 		btrfs_uuid_tree_rem(trans, root->fs_info->uuid_root,  in _btrfs_ioctl_set_received_subvol()
5023 	ret = btrfs_update_root(trans, root->fs_info->tree_root,  in _btrfs_ioctl_set_received_subvol()
5030 		ret = btrfs_uuid_tree_add(trans, root->fs_info->uuid_root,  in _btrfs_ioctl_set_received_subvol()
5046 	up_write(&root->fs_info->subvol_sem);  in _btrfs_ioctl_set_received_subvol()
5139 	spin_lock(&root->fs_info->super_lock);  in btrfs_ioctl_get_fslabel()
5140 	memcpy(label, root->fs_info->super_copy->label, BTRFS_LABEL_SIZE);  in btrfs_ioctl_get_fslabel()
5141 	spin_unlock(&root->fs_info->super_lock);  in btrfs_ioctl_get_fslabel()
5146 		btrfs_warn(root->fs_info,  in btrfs_ioctl_get_fslabel()
5158 	struct btrfs_super_block *super_block = root->fs_info->super_copy;  in btrfs_ioctl_set_fslabel()
5170 		btrfs_err(root->fs_info, "unable to set label with more than %d bytes",  in btrfs_ioctl_set_fslabel()
5185 	spin_lock(&root->fs_info->super_lock);  in btrfs_ioctl_set_fslabel()
5187 	spin_unlock(&root->fs_info->super_lock);  in btrfs_ioctl_set_fslabel()
5218 	struct btrfs_super_block *super_block = root->fs_info->super_copy;  in btrfs_ioctl_get_features()
5246 			btrfs_warn(root->fs_info,  in check_feature_bits()
5251 			btrfs_warn(root->fs_info,  in check_feature_bits()
5261 			btrfs_warn(root->fs_info,  in check_feature_bits()
5266 			btrfs_warn(root->fs_info,  in check_feature_bits()
5276 			btrfs_warn(root->fs_info,  in check_feature_bits()
5281 			btrfs_warn(root->fs_info,  in check_feature_bits()
5299 	struct btrfs_super_block *super_block = root->fs_info->super_copy;  in btrfs_ioctl_set_features()
5335 	spin_lock(&root->fs_info->super_lock);  in btrfs_ioctl_set_features()
5350 	spin_unlock(&root->fs_info->super_lock);  in btrfs_ioctl_set_features()
5425 		ret = btrfs_start_delalloc_roots(root->fs_info, 0, -1);  in btrfs_ioctl()
5434 		wake_up_process(root->fs_info->transaction_kthread);  in btrfs_ioctl()