Generic functions provided by VFS

• VFS provides also generic functions which can be used by filesystems (but they can implement them on their own)

• It is recommended to use VFS-provided functions as they are updated when VFS architecture changes and cause less code duplication (which avoids errors)

• Using generic functions you also get much functionality for free (like mmap, AIO)

• Some functions can be put directly in structure or can be called from filesystem-specific function after FS-specific job