Moving CVS files around?

I'm considering moving s_lock.c from backend/storage/buffer, where it
seems to make no sense, into backend/storage/lmgr which seems like a
more logical place for it.  However, the only way to do it that I know
of is to "cvs remove" in the one directory and then "cvs add" a new copy
in the other.  That would lose the CVS log history of the file, or at
least make it a lot harder to find.  Is there a way to attach the past
commit history to the file in its new location?  Should I just do it and
not worry about the history?  Should I leave well enough alone?
        regards, tom lane