Re: Following renames

I wonder what is the most common case in Linux kernel or git.

1.) renaming the file in the same directory, old-file.c to new-file.c?
2.) moving file to other directory (project reorganization), 
    old-dir/file.c to new-dir/file.c?
3.) splitting file into modules, huge-file.c to file1.c, file2.c?
4.) copying fragment of one file to other?
5.) moving fragment of code from one file to other?

-- 
Jakub Narebski
Warsaw, Poland