60   AddExtent(ExtentForRange(block, 1));  in AddBlock()
64   SubtractExtent(ExtentForRange(block, 1));  in SubtractBlock()
75   return ExtentForRange(start, end - start);  in UnionOverlappingExtents()
112     ret.insert(ExtentForRange(base.start_block(),  in SubtractOverlappingExtents()
118     ret.insert(ExtentForRange(subtractee_end, base_end - subtractee_end));  in SubtractOverlappingExtents()
207   auto lower = extent_set_.lower_bound(ExtentForRange(block, 1));  in ContainsBlock()
213   auto upper = extent_set_.lower_bound(ExtentForRange(block + 1, 0));  in ContainsBlock()
233 Extent ExtentForRange(uint64_t start_block, uint64_t num_blocks) {  in ExtentForRange()  function
245   return ExtentForRange(start_block, end_block - start_block);  in ExtentForBytes()
292         ExtentForRange(extent.start_block() + extent.num_blocks(), 0));  in FilterExtentRanges()
304         extent = ExtentForRange(extent.start_block() + cut_blocks,  in FilterExtentRanges()
309         result.push_back(ExtentForRange(  in FilterExtentRanges()
317         extent = ExtentForRange(new_start, old_end - new_start);  in FilterExtentRanges()