# Linux 内核概念

本章描述内核中使用到的各种各样的概念。

* [每个 CPU 的变量](http://0xax.gitbooks.io/linux-insides/content/Concepts/per-cpu.html)
* [CPU 掩码](http://0xax.gitbooks.io/linux-insides/content/Concepts/cpumask.html)
* [initcall 机制](https://0xax.gitbooks.io/linux-insides/content/Concepts/initcall.html)
* [Linux 内核的通知链](https://0xax.gitbooks.io/linux-insides/content/Concepts/notification_chains.html)