Solaris™ Internals: Core Kernel Components

13.3. The vfs Object

The vfs layer provides an administrative interface into the file system to support commands like mount and umount in a file-system-independent manner. The interface achieves independence by means of a virtual file system (vfs) object. The vfs object represents an encapsulation of a file system's state and a set of methods for each of the file system administrative interfaces. Each file system type provides its own implementation of the object. Figure 13.3 illustrates the vfs object.

Figure 13.3. The vfs Object

Table 13-5. Solaris 7 vfs Interface Methods from sys/vfs.h

Method	Description
vfs_mount()	Mounts a file system on the ...