45 static int init_first_rw_device(struct btrfs_trans_handle *trans,
1055 static int contains_pending_extent(struct btrfs_trans_handle *trans,  in contains_pending_extent()  argument
1060 	struct list_head *search_list = &trans->transaction->pending_chunks;  in contains_pending_extent()
1082 	if (search_list == &trans->transaction->pending_chunks) {  in contains_pending_extent()
1083 		search_list = &trans->root->fs_info->pinned_chunks;  in contains_pending_extent()
1111 int find_free_dev_extent(struct btrfs_trans_handle *trans,  in find_free_dev_extent()  argument
1196 			if (contains_pending_extent(trans, device,  in find_free_dev_extent()
1245 		if (contains_pending_extent(trans, device, &search_start,  in find_free_dev_extent()
1271 static int btrfs_free_dev_extent(struct btrfs_trans_handle *trans,  in btrfs_free_dev_extent()  argument
1291 	ret = btrfs_search_slot(trans, root, &key, path, -1, 1);  in btrfs_free_dev_extent()
1317 	ret = btrfs_del_item(trans, root, path);  in btrfs_free_dev_extent()
1322 		trans->transaction->have_free_bgs = 1;  in btrfs_free_dev_extent()
1329 static int btrfs_alloc_dev_extent(struct btrfs_trans_handle *trans,  in btrfs_alloc_dev_extent()  argument
1350 	ret = btrfs_insert_empty_item(trans, root, path, &key,  in btrfs_alloc_dev_extent()
1433 static int btrfs_add_device(struct btrfs_trans_handle *trans,  in btrfs_add_device()  argument
1454 	ret = btrfs_insert_empty_item(trans, root, path, &key,  in btrfs_add_device()
1511 	struct btrfs_trans_handle *trans;  in btrfs_rm_dev_item()  local
1519 	trans = btrfs_start_transaction(root, 0);  in btrfs_rm_dev_item()
1520 	if (IS_ERR(trans)) {  in btrfs_rm_dev_item()
1522 		return PTR_ERR(trans);  in btrfs_rm_dev_item()
1528 	ret = btrfs_search_slot(trans, root, &key, path, -1, 1);  in btrfs_rm_dev_item()
1537 	ret = btrfs_del_item(trans, root, path);  in btrfs_rm_dev_item()
1542 	btrfs_commit_transaction(trans, root);  in btrfs_rm_dev_item()
2024 static int btrfs_finish_sprout(struct btrfs_trans_handle *trans,  in btrfs_finish_sprout()  argument
2047 		ret = btrfs_search_slot(trans, root, &key, path, 0, 1);  in btrfs_finish_sprout()
2099 	struct btrfs_trans_handle *trans;  in btrfs_init_new_device()  local
2153 	trans = btrfs_start_transaction(root, 0);  in btrfs_init_new_device()
2154 	if (IS_ERR(trans)) {  in btrfs_init_new_device()
2157 		ret = PTR_ERR(trans);  in btrfs_init_new_device()
2165 	device->generation = trans->transid;  in btrfs_init_new_device()
2228 		ret = init_first_rw_device(trans, root, device);  in btrfs_init_new_device()
2231 			btrfs_abort_transaction(trans, root, ret);  in btrfs_init_new_device()
2236 	ret = btrfs_add_device(trans, root, device);  in btrfs_init_new_device()
2238 		btrfs_abort_transaction(trans, root, ret);  in btrfs_init_new_device()
2245 		ret = btrfs_finish_sprout(trans, root);  in btrfs_init_new_device()
2247 			btrfs_abort_transaction(trans, root, ret);  in btrfs_init_new_device()
2262 	ret = btrfs_commit_transaction(trans, root);  in btrfs_init_new_device()
2277 		trans = btrfs_attach_transaction(root);  in btrfs_init_new_device()
2278 		if (IS_ERR(trans)) {  in btrfs_init_new_device()
2279 			if (PTR_ERR(trans) == -ENOENT)  in btrfs_init_new_device()
2281 			return PTR_ERR(trans);  in btrfs_init_new_device()
2283 		ret = btrfs_commit_transaction(trans, root);  in btrfs_init_new_device()
2291 	btrfs_end_transaction(trans, root);  in btrfs_init_new_device()
2411 static noinline int btrfs_update_device(struct btrfs_trans_handle *trans,  in btrfs_update_device()  argument
2431 	ret = btrfs_search_slot(trans, root, &key, path, 0, 1);  in btrfs_update_device()
2459 int btrfs_grow_device(struct btrfs_trans_handle *trans,  in btrfs_grow_device()  argument
2494 	return btrfs_update_device(trans, device);  in btrfs_grow_device()
2497 static int btrfs_free_chunk(struct btrfs_trans_handle *trans,  in btrfs_free_chunk()  argument
2514 	ret = btrfs_search_slot(trans, root, &key, path, -1, 1);  in btrfs_free_chunk()
2524 	ret = btrfs_del_item(trans, root, path);  in btrfs_free_chunk()
2581 int btrfs_remove_chunk(struct btrfs_trans_handle *trans,  in btrfs_remove_chunk()  argument
2616 		ret = btrfs_free_dev_extent(trans, device,  in btrfs_remove_chunk()
2620 			btrfs_abort_transaction(trans, root, ret);  in btrfs_remove_chunk()
2636 			ret = btrfs_update_device(trans, map->stripes[i].dev);  in btrfs_remove_chunk()
2638 				btrfs_abort_transaction(trans, root, ret);  in btrfs_remove_chunk()
2643 	ret = btrfs_free_chunk(trans, root, chunk_objectid, chunk_offset);  in btrfs_remove_chunk()
2645 		btrfs_abort_transaction(trans, root, ret);  in btrfs_remove_chunk()
2654 			btrfs_abort_transaction(trans, root, ret);  in btrfs_remove_chunk()
2659 	ret = btrfs_remove_block_group(trans, extent_root, chunk_offset, em);  in btrfs_remove_chunk()
2661 		btrfs_abort_transaction(trans, extent_root, ret);  in btrfs_remove_chunk()
2676 	struct btrfs_trans_handle *trans;  in btrfs_relocate_chunk()  local
2691 	trans = btrfs_start_transaction(root, 0);  in btrfs_relocate_chunk()
2692 	if (IS_ERR(trans)) {  in btrfs_relocate_chunk()
2693 		ret = PTR_ERR(trans);  in btrfs_relocate_chunk()
2702 	ret = btrfs_remove_chunk(trans, root, chunk_offset);  in btrfs_relocate_chunk()
2703 	btrfs_end_transaction(trans, root);  in btrfs_relocate_chunk()
2780 	struct btrfs_trans_handle *trans;  in insert_balance_item()  local
2792 	trans = btrfs_start_transaction(root, 0);  in insert_balance_item()
2793 	if (IS_ERR(trans)) {  in insert_balance_item()
2795 		return PTR_ERR(trans);  in insert_balance_item()
2802 	ret = btrfs_insert_empty_item(trans, root, path, &key,  in insert_balance_item()
2824 	err = btrfs_commit_transaction(trans, root);  in insert_balance_item()
2832 	struct btrfs_trans_handle *trans;  in del_balance_item()  local
2841 	trans = btrfs_start_transaction(root, 0);  in del_balance_item()
2842 	if (IS_ERR(trans)) {  in del_balance_item()
2844 		return PTR_ERR(trans);  in del_balance_item()
2851 	ret = btrfs_search_slot(trans, root, &key, path, -1, 1);  in del_balance_item()
2859 	ret = btrfs_del_item(trans, root, path);  in del_balance_item()
2862 	err = btrfs_commit_transaction(trans, root);  in del_balance_item()
3151 	struct btrfs_trans_handle *trans;  in __btrfs_balance()  local
3178 		trans = btrfs_start_transaction(dev_root, 0);  in __btrfs_balance()
3179 		BUG_ON(IS_ERR(trans));  in __btrfs_balance()
3181 		ret = btrfs_grow_device(trans, device, old_size);  in __btrfs_balance()
3184 		btrfs_end_transaction(trans, dev_root);  in __btrfs_balance()
3707 	struct btrfs_trans_handle *trans = NULL;  in btrfs_uuid_scan_kthread()  local
3751 			if (trans)  in btrfs_uuid_scan_kthread()
3759 			trans = btrfs_start_transaction(fs_info->uuid_root, 2);  in btrfs_uuid_scan_kthread()
3760 			if (IS_ERR(trans)) {  in btrfs_uuid_scan_kthread()
3761 				ret = PTR_ERR(trans);  in btrfs_uuid_scan_kthread()
3770 			ret = btrfs_uuid_tree_add(trans, fs_info->uuid_root,  in btrfs_uuid_scan_kthread()
3782 			ret = btrfs_uuid_tree_add(trans, fs_info->uuid_root,  in btrfs_uuid_scan_kthread()
3794 		if (trans) {  in btrfs_uuid_scan_kthread()
3795 			ret = btrfs_end_transaction(trans, fs_info->uuid_root);  in btrfs_uuid_scan_kthread()
3796 			trans = NULL;  in btrfs_uuid_scan_kthread()
3819 	if (trans && !IS_ERR(trans))  in btrfs_uuid_scan_kthread()
3820 		btrfs_end_transaction(trans, fs_info->uuid_root);  in btrfs_uuid_scan_kthread()
3895 	struct btrfs_trans_handle *trans;  in btrfs_create_uuid_tree()  local
3905 	trans = btrfs_start_transaction(tree_root, 2);  in btrfs_create_uuid_tree()
3906 	if (IS_ERR(trans))  in btrfs_create_uuid_tree()
3907 		return PTR_ERR(trans);  in btrfs_create_uuid_tree()
3909 	uuid_root = btrfs_create_tree(trans, fs_info,  in btrfs_create_uuid_tree()
3912 		btrfs_abort_transaction(trans, tree_root,  in btrfs_create_uuid_tree()
3919 	ret = btrfs_commit_transaction(trans, tree_root);  in btrfs_create_uuid_tree()
3958 	struct btrfs_trans_handle *trans;  in btrfs_shrink_device()  local
4062 	trans = btrfs_start_transaction(root, 0);  in btrfs_shrink_device()
4063 	if (IS_ERR(trans)) {  in btrfs_shrink_device()
4064 		ret = PTR_ERR(trans);  in btrfs_shrink_device()
4079 	ret = btrfs_update_device(trans, device);  in btrfs_shrink_device()
4080 	btrfs_end_transaction(trans, root);  in btrfs_shrink_device()
4217 static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,  in __btrfs_alloc_chunk()  argument
4332 		ret = find_free_dev_extent(trans, device,  in __btrfs_alloc_chunk()
4466 		list_add_tail(&em->list, &trans->transaction->pending_chunks);  in __btrfs_alloc_chunk()
4475 	ret = btrfs_make_block_group(trans, extent_root, 0, type,  in __btrfs_alloc_chunk()
4513 int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans,  in btrfs_finish_chunk_alloc()  argument
4564 		ret = btrfs_update_device(trans, device);  in btrfs_finish_chunk_alloc()
4567 		ret = btrfs_alloc_dev_extent(trans, device,  in btrfs_finish_chunk_alloc()
4601 	ret = btrfs_insert_item(trans, chunk_root, &key, chunk, item_size);  in btrfs_finish_chunk_alloc()
4624 int btrfs_alloc_chunk(struct btrfs_trans_handle *trans,  in btrfs_alloc_chunk()  argument
4631 	return __btrfs_alloc_chunk(trans, extent_root, chunk_offset, type);  in btrfs_alloc_chunk()
4634 static noinline int init_first_rw_device(struct btrfs_trans_handle *trans,  in init_first_rw_device()  argument
4647 	ret = __btrfs_alloc_chunk(trans, extent_root, chunk_offset,  in init_first_rw_device()
4654 	ret = __btrfs_alloc_chunk(trans, extent_root, sys_chunk_offset,  in init_first_rw_device()
6510 static int update_dev_stat_item(struct btrfs_trans_handle *trans,  in update_dev_stat_item()  argument
6527 	ret = btrfs_search_slot(trans, dev_root, &key, path, -1, 1);  in update_dev_stat_item()
6538 		ret = btrfs_del_item(trans, dev_root, path);  in update_dev_stat_item()
6551 		ret = btrfs_insert_empty_item(trans, dev_root, path,  in update_dev_stat_item()
6576 int btrfs_run_dev_stats(struct btrfs_trans_handle *trans,  in btrfs_run_dev_stats()  argument
6591 		ret = update_dev_stat_item(trans, dev_root, device);  in btrfs_run_dev_stats()