18 	struct btrfs_extent_item *item;  in insert_normal_tree_ref()  local
24 	u32 size = sizeof(*item) + sizeof(*iref) + sizeof(*block_info);  in insert_normal_tree_ref()
47 	item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in insert_normal_tree_ref()
48 	btrfs_set_extent_refs(leaf, item, 1);  in insert_normal_tree_ref()
49 	btrfs_set_extent_generation(leaf, item, 1);  in insert_normal_tree_ref()
50 	btrfs_set_extent_flags(leaf, item, BTRFS_EXTENT_FLAG_TREE_BLOCK);  in insert_normal_tree_ref()
51 	block_info = (struct btrfs_tree_block_info *)(item + 1);  in insert_normal_tree_ref()
70 	struct btrfs_extent_item *item;  in add_tree_ref()  local
95 	item = btrfs_item_ptr(path->nodes[0], path->slots[0],  in add_tree_ref()
97 	refs = btrfs_extent_refs(path->nodes[0], item);  in add_tree_ref()
98 	btrfs_set_extent_refs(path->nodes[0], item, refs + 1);  in add_tree_ref()
152 	struct btrfs_extent_item *item;  in remove_extent_ref()  local
177 	item = btrfs_item_ptr(path->nodes[0], path->slots[0],  in remove_extent_ref()
179 	refs = btrfs_extent_refs(path->nodes[0], item);  in remove_extent_ref()
180 	btrfs_set_extent_refs(path->nodes[0], item, refs - 1);  in remove_extent_ref()