230     off_t new_offset = lseek(fd_from.get(), offset, SEEK_HOLE);  in Copy()  local
231     if (new_offset == -1) {  in Copy()
240     auto data_bytes = new_offset - offset;  in Copy()
249     CHECK_EQ(offset, new_offset);  in Copy()
253     new_offset = lseek(fd_from.get(), offset, SEEK_DATA);  in Copy()
254     if (new_offset == -1) {  in Copy()
263     offset = new_offset;  in Copy()
372     off_t new_offset = fd->LSeek(offset, SEEK_HOLE);  in SparseFileSizes()  local
373     if (new_offset == -1) {  in SparseFileSizes()
382       data_bytes += new_offset - offset;  in SparseFileSizes()
383       offset = new_offset;  in SparseFileSizes()
388     new_offset = fd->LSeek(offset, SEEK_DATA);  in SparseFileSizes()
389     if (new_offset == -1) {  in SparseFileSizes()
398       offset = new_offset;  in SparseFileSizes()