Compile and Execute:
--------------------
make qemu
In the qemu terminal type:
assign4
Included Files
--------------
xv6 : Code
diff_final : File showing the diffs.
PA4_LSEEK : lseek implementation and test cases.
PA4_Extent_files: extent based files implementation and test cases.
Files Modified/Added for Extent based file system:
-------------------------------------------------
Makefile : Modified to include for compilation of test program (assign4.c).
fcntl.h : Modified to include #define O_EXTENT 0x020, used in create function call.
fs.c : Modified to implement changes for extent based file system.
stat.h : Modified to include new file type (#define T_EXT_FILE 4).
Changes made to "struct stat" to extend the functionality of fstat()
sysfile.c : Changes made to sys_open to appropriately pass the file type during file creation.