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Лабораторная работа 4. Файловая система как модуль ядра Linux (VTFS)
Реализован загружаемый модуль ядра Linux — виртуальная файловая система VTFS,
работающая в оперативной памяти. Модуль регистрирует собственный тип ФС, который
монтируется командой
mount -t vtfsи управляется стандартными командамиоболочки (
ls,cd,mkdir,touch,rmи т. д.).Кратко о реализации
vtfs_fs_typeчерезregister_filesystem; монтирование черезmount_nodev→vtfs_fill_super(создание корневого inode).lookup,create,mkdir,rmdir,unlink,read,write,iterate.vtfs_inode,vtfs_dentry, а также глобальнаяvtfs_sbсо связью наsuper_blockи двусвязным списком записей каталога.Полный разбор устройства и работы модуля с примерами команд приведён в
preview.md.
Демонстрация
Команды оболочки:
Логи ядра: