一种动态更新LINUX内核变量的实现方法

A method to update the LINUX kernel variables dynamically

在进行LINUX内核嵌入式开发时,经常使用内核启动过程中读取静态配置文件内容的方式对内核某些变量进行初始化,当静态配置文件改动时,只有重启内核,新配置才能生效。由此,提出一种动态更新内核变量的方法,使内核不需要重启便可以意识到配置的变化。

When doing embedded development in LINUX kernel, programmers often use the method that reads static config file to initialize kernel variables during kernel booting. When the static config file is changed, the kernel can't realize the change until kernel is rebooted, so a method to update kernel variables dynamically without kernel rebooting is advanced.