Assignment 6 Kernel Module

[jimin-kiim]

1. making a simple kernel module

• modules: pieces of code that can be loaded and unloaded into the kernel upon demand
  • extends the functionality of the kernel without the need to reboot the system
  • without loadable kernel modules, developers should rebuild and reboot the base kernel every time they require new functionality
  • with loadable kernel modules, developers can rebuild only the modules -> compile time is minimized
• created Makefile, wrote simple kernel module codes, complied

2. making a file system module

• making ptx4 and jbd3 instead of ext4 and jbd2
• insert pxt4.ko and jbd3.ko modules
• mount my file system module into kernel