85         offset: u64,  in read()
87         if offset >= self.size() {  in read()
92         let start_cluster_number: u64 = offset / fs.bytes_per_cluster();  in read()
102         let bytes_remain: u64 = self.size() - offset;  in read()
105         let mut in_cluster_offset: u64 = offset % fs.bytes_per_cluster();  in read()
132             let offset = fs.cluster_bytes_offset(current_cluster) + in_cluster_offset;  in read()  localVariable
134                 offset as usize,  in read()
162         offset: u64,  in write()
164         self.ensure_len(fs, offset, buf.len() as u64)?;  in write()
167         let start_cluster_num = offset / fs.bytes_per_cluster();  in write()
177         let mut in_cluster_bytes_offset: u64 = offset % fs.bytes_per_cluster();  in write()
199             let offset = fs.cluster_bytes_offset(current_cluster) + in_cluster_bytes_offset;  in write()  localVariable
202                 offset as usize,  in write()
232         offset: u64,  in ensure_len()
236         if offset + len <= self.size() {  in ensure_len()
249         let extra_bytes = min((offset + len) - self.size(), MAX_FILE_SIZE - self.size());  in ensure_len()
279         if offset > self.size() {  in ensure_len()
291             let cluster_offset_start = offset / fs.bytes_per_cluster();  in ensure_len()
300                 self.zero_range(fs, start_offset, start_offset + offset - self.size())?;  in ensure_len()
391             offset: self.root_offset.unwrap_or(0),  in to_iter()
422         let mut offset = self.root_offset.unwrap_or(0);  in find_free_entries()  localVariable
428             if offset >= fs.bytes_per_cluster() && !self.is_root() {  in find_free_entries()
433                     offset = offset % fs.bytes_per_cluster();  in find_free_entries()
440             if self.is_root() && offset > fs.root_dir_end_bytes_offset().unwrap() {  in find_free_entries()
444             let e_offset = fs.cluster_bytes_offset(current_cluster) + offset;  in find_free_entries()
450                         first_free = Some((current_cluster, offset));  in find_free_entries()
465             offset += FATRawDirEntry::DIR_ENTRY_LEN;  in find_free_entries()
621                 let mut offset = 0;  in create_dir()  localVariable
629                 dot_entry.flush(&fs, fs.cluster_bytes_offset(first_cluster) + offset)?;  in create_dir()
633                 offset += FATRawDirEntry::DIR_ENTRY_LEN;  in create_dir()
643                 dot_dot_entry.flush(&fs, fs.cluster_bytes_offset(first_cluster) + offset)?;  in create_dir()
761         let offset = fs.cluster_bytes_offset(end.0) + end.1;  localVariable
762         short_dentry.flush(&fs, offset)?;
1401     offset: u64,  field
1419                 return Ok((self.current_cluster, self.offset, None));  in get_dir_entry()
1423             if self.offset >= self.fs.bytes_per_cluster() && !self.is_root {  in get_dir_entry()
1428                         self.offset %= self.fs.bytes_per_cluster();  in get_dir_entry()
1433                         return Ok((self.current_cluster, self.offset, None));  in get_dir_entry()
1440             if self.is_root && self.offset > self.fs.root_dir_end_bytes_offset().unwrap() {  in get_dir_entry()
1441                 return Ok((self.current_cluster, self.offset, None));  in get_dir_entry()
1445             let offset: u64 = self.fs.cluster_bytes_offset(self.current_cluster) + self.offset;  in get_dir_entry()  localVariable
1448             let raw_dentry: FATRawDirEntry = get_raw_dir_entry(&self.fs, offset)?;  in get_dir_entry()
1456                     self.offset += FATRawDirEntry::DIR_ENTRY_LEN;  in get_dir_entry()
1459                         self.offset,  in get_dir_entry()
1462                             self.offset - FATRawDirEntry::DIR_ENTRY_LEN,  in get_dir_entry()
1471                     let start_offset: u64 = self.offset;  in get_dir_entry()
1474                     self.offset += FATRawDirEntry::DIR_ENTRY_LEN;  in get_dir_entry()
1481                         if self.offset >= self.fs.bytes_per_cluster() && !self.is_root {  in get_dir_entry()
1486                                     self.offset %= self.fs.bytes_per_cluster();  in get_dir_entry()
1498                             && self.offset > self.fs.root_dir_end_bytes_offset().unwrap()  in get_dir_entry()
1504                         let offset: u64 =  in get_dir_entry()  localVariable
1505                             self.fs.cluster_bytes_offset(self.current_cluster) + self.offset;  in get_dir_entry()
1507                         let raw_dentry: FATRawDirEntry = get_raw_dir_entry(&self.fs, offset)?;  in get_dir_entry()
1518                                 self.offset += FATRawDirEntry::DIR_ENTRY_LEN;  in get_dir_entry()
1532                             (self.current_cluster, self.offset),  in get_dir_entry()
1539                             self.offset += FATRawDirEntry::DIR_ENTRY_LEN;  in get_dir_entry()
1540                             return Ok((self.current_cluster, self.offset, Some(d)));  in get_dir_entry()
1545                             self.offset += FATRawDirEntry::DIR_ENTRY_LEN;  in get_dir_entry()
1551                     self.offset += FATRawDirEntry::DIR_ENTRY_LEN;  in get_dir_entry()
1555                     return Ok((self.current_cluster, self.offset, None));  in get_dir_entry()
1568             Ok((cluster, offset, result)) => {  in next()
1570                 self.offset = offset;  in next()