This abstraction layer allows any operating system to run on the hardware without knowledge of any other guest operating system.
这个抽象层允许任何操作系统在硬件上运行，而不需要了解任何其他客户操作系统。
The VFS provides the abstraction layer, separating the POSIX API from the details of how a particular file system implements that behavior.
VFS 提供抽象层，从而将 POSIX API 与特定文件系统如何实现该行为的细节分离开来。
The virtual file system (VFS) is the abstraction layer for the multitude of file systems that are supported in the kernel.
而虚拟文件系统（VFS) 是内核中支持的大多数文件系统的抽象层。
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