Functions of virtual file system

Question

Explain functions of the virtual file system (VFS)?

Answer 1

It performs majorly two functions:

a) It isolates the file-system-generic operations from their implementation describing a clean VFS interface. It enables the transparent access to several types of file systems which are mounted locally.

b) VFS is based upon the file representation structure, known as a vnode. It consists of the numerical value for the network-wide unique file .The kernel manages one vnode structure for every active file or directory.