btrfs_start_transaction_fallback_global_rsv
return btrfs_start_transaction_fallback_global_rsv(root, num_items);
return btrfs_start_transaction_fallback_global_rsv(root,
trans = btrfs_start_transaction_fallback_global_rsv(fs_info->tree_root, num_items);
struct btrfs_trans_handle *btrfs_start_transaction_fallback_global_rsv(
trans = btrfs_start_transaction_fallback_global_rsv(root, 0);