In summary, you need:
(1) complete user code /home/accessID/UML/Lab2/frg.c
(2) write kernel code /home/accessID/UML/linux-126.96.36.199/my-source/lab2.c to implement sys_lab2_contiguousness()
(3) write user code /Lab2/contiguousness.c that uses sys_lab2_contiguousness(). This file is in 'root_fs' and runs on your UML kernel
(4) write user code /Lab2/read_file.c that file is in'root_fs' and runs on your UML kernel. This program sequentially reads an entire file from its beginning and print its I/O bandwidth.