Linux内核是一个整体是结构，因此向内核添加任何东西，或者删除某些功能，都十分困难。为了解决这个问题引入了内核机制。从而可以动态的想内核中添加或者删除模块。-Linux is a kernel of the whole structure, it added to the kernel anything, or delete certain functions are very difficult. To solve this problem the introduction of core mechanism. Thus dynamic kernel to add or delete modules.