5 use system_error::SystemError;
60 pub fn vfs_init() -> Result<(), SystemError> {  in vfs_init()
85 fn migrate_virtual_filesystem(new_fs: Arc<dyn FileSystem>) -> Result<(), SystemError> {  in migrate_virtual_filesystem()  argument
132 pub fn mount_root_fs() -> Result<(), SystemError> {  in mount_root_fs()
142             .ok_or(SystemError::ENODEV)?  in mount_root_fs()
145     let fatfs: Result<Arc<FATFileSystem>, SystemError> = FATFileSystem::new(gendisk);  in mount_root_fs()
173 ) -> Result<Arc<dyn IndexNode>, SystemError> {  in do_mkdir_at()  argument
187 pub fn do_remove_dir(dirfd: i32, path: &str) -> Result<u64, SystemError> {  in do_remove_dir()  argument
196         return Err(SystemError::EINVAL);  in do_remove_dir()
204         return Err(SystemError::ENOTDIR);  in do_remove_dir()
210         return Err(SystemError::ENOTDIR);  in do_remove_dir()
220 pub fn do_unlink_at(dirfd: i32, path: &str) -> Result<u64, SystemError> {  in do_unlink_at()  argument
225     let inode: Result<Arc<dyn IndexNode>, SystemError> =  in do_unlink_at()
231         if errno == SystemError::ENOENT {  in do_unlink_at()
232             return Err(SystemError::ENOENT);  in do_unlink_at()
237         return Err(SystemError::EPERM);  in do_unlink_at()
246         return Err(SystemError::ENOTDIR);  in do_unlink_at()
255 pub fn do_symlinkat(from: *const u8, newdfd: i32, to: *const u8) -> Result<usize, SystemError> {  in do_symlinkat()  argument
258         .map_err(|_| SystemError::EINVAL)?;  in do_symlinkat()
261         .map_err(|_| SystemError::EINVAL)?;  in do_symlinkat()
281         return Err(SystemError::ENOTDIR);  in do_symlinkat()
313 pub fn do_mount(fs: Arc<dyn FileSystem>, mount_point: &str) -> Result<Arc<MountFS>, SystemError> {  in do_mount()  argument
322             return Err(SystemError::EBUSY);  in do_mount()
346 ) -> Result<Arc<MountFS>, SystemError> {  in do_mount_mkdir()  argument
354             return Err(SystemError::EBUSY);  in do_mount_mkdir()
382 ) -> Result<Arc<MountFS>, SystemError> {  in do_umount2()  argument
385     let do_umount = || -> Result<Arc<MountFS>, SystemError> {  in do_umount2()
391         return Err(SystemError::EINVAL);  in do_umount2()