2189 	struct extent_buffer *split;  in split_node()  local
2217 	split = btrfs_alloc_free_block(trans, root, root->nodesize, 0,  in split_node()
2220 	if (IS_ERR(split))  in split_node()
2221 		return PTR_ERR(split);  in split_node()
2225 	memset_extent_buffer(split, 0, 0, sizeof(struct btrfs_header));  in split_node()
2226 	btrfs_set_header_level(split, btrfs_header_level(c));  in split_node()
2227 	btrfs_set_header_bytenr(split, split->start);  in split_node()
2228 	btrfs_set_header_generation(split, trans->transid);  in split_node()
2229 	btrfs_set_header_backref_rev(split, BTRFS_MIXED_BACKREF_REV);  in split_node()
2230 	btrfs_set_header_owner(split, root->root_key.objectid);  in split_node()
2231 	write_extent_buffer(split, root->fs_info->fsid,  in split_node()
2232 			    (unsigned long)btrfs_header_fsid(split),  in split_node()
2234 	write_extent_buffer(split, root->fs_info->chunk_tree_uuid,  in split_node()
2235 			    (unsigned long)btrfs_header_chunk_tree_uuid(split),  in split_node()
2239 	copy_extent_buffer(split, c,  in split_node()
2243 	btrfs_set_header_nritems(split, c_nritems - mid);  in split_node()
2248 	btrfs_mark_buffer_dirty(split);  in split_node()
2250 	wret = insert_ptr(trans, root, path, &disk_key, split->start,  in split_node()
2260 		path->nodes[level] = split;  in split_node()
2263 		btrfs_tree_unlock(split);  in split_node()
2264 		free_extent_buffer(split);  in split_node()
2888 	int split;  in split_leaf()  local
2923 	split = 1;  in split_leaf()
2934 				split = 0;  in split_leaf()
2942 					split = 2;  in split_leaf()
2950 				split = 0;  in split_leaf()
2960 					split = 2 ;  in split_leaf()
2966 	if (split == 0)  in split_leaf()
2993 	if (split == 0) {  in split_leaf()
3033 	if (split == 2) {  in split_leaf()