128     fn mmap(&self, _start: usize, _len: usize, _offset: usize) -> Result<(), SystemError> {  in mmap()  argument
139     ) -> Result<(), SystemError> {  in open()  argument
148     fn close(&self, _data: SpinLockGuard<FilePrivateData>) -> Result<(), SystemError> {  in close()  argument
168     ) -> Result<usize, SystemError>;  in read_at()
185     ) -> Result<usize, SystemError>;  in write_at()
190     fn poll(&self, _private_data: &FilePrivateData) -> Result<usize, SystemError> {  in poll()
199     fn metadata(&self) -> Result<Metadata, SystemError> {  in metadata()
208     fn set_metadata(&self, _metadata: &Metadata) -> Result<(), SystemError> {  in set_metadata()  argument
220     fn resize(&self, _len: usize) -> Result<(), SystemError> {  in resize()  argument
238     ) -> Result<Arc<dyn IndexNode>, SystemError> {  in create()
258     ) -> Result<Arc<dyn IndexNode>, SystemError> {  in create_with_data()
270     fn link(&self, _name: &str, _other: &Arc<dyn IndexNode>) -> Result<(), SystemError> {  in link()  argument
281     fn unlink(&self, _name: &str) -> Result<(), SystemError> {  in unlink()  argument
292     fn rmdir(&self, _name: &str) -> Result<(), SystemError> {  in rmdir()  argument
305     ) -> Result<(), SystemError> {  in move_to()  argument
316     fn find(&self, _name: &str) -> Result<Arc<dyn IndexNode>, SystemError> {  in find()
327     fn get_entry_name(&self, _ino: InodeId) -> Result<String, SystemError> {  in get_entry_name()
338     fn get_entry_name_and_metadata(&self, ino: InodeId) -> Result<(String, Metadata), SystemError> {  in get_entry_name_and_metadata()
357     ) -> Result<usize, SystemError> {  in ioctl()
366     ) -> Result<usize, SystemError> {  in kernel_ioctl()
378     fn list(&self) -> Result<Vec<String>, SystemError>;  in list()
404     fn mount(&self, _fs: Arc<dyn FileSystem>) -> Result<Arc<MountFS>, SystemError> {  in mount()
429     fn mount_from(&self, _des: Arc<dyn IndexNode>) -> Result<Arc<MountFS>, SystemError> {  in mount_from()
453     fn umount(&self) -> Result<Arc<MountFS>, SystemError> {  in umount()
476     fn absolute_path(&self) -> Result<String, SystemError> {  in absolute_path()
483     fn truncate(&self, _len: usize) -> Result<(), SystemError> {  in truncate()  argument
488     fn sync(&self) -> Result<(), SystemError> {  in sync()  argument
500     ) -> Result<Arc<dyn IndexNode>, SystemError> {  in mknod()
519     fn mkdir(&self, name: &str, mode: ModeType) -> Result<Arc<dyn IndexNode>, SystemError> {  in mkdir()
549     fn dname(&self) -> Result<DName, SystemError> {  in dname()
565     fn parent(&self) -> Result<Arc<dyn IndexNode>, SystemError> {  in parent()
597     pub fn lookup(&self, path: &str) -> Result<Arc<dyn IndexNode>, SystemError> {  in lookup()
605     ) -> Result<Arc<dyn IndexNode>, SystemError> {  in lookup_follow_symlink()
614     ) -> Result<Arc<dyn IndexNode>, SystemError> {  in lookup_follow_symlink2()
638     ) -> Result<Arc<dyn IndexNode>, SystemError> {  in do_lookup_follow_symlink()
941     ) -> Result<Arc<dyn FileSystem>, SystemError> {  in call()
951     fn(data: Option<&dyn FileSystemMakerData>) -> Result<Arc<dyn FileSystem>, SystemError>;