Questions about patches for hurdselect.c

[Svante Signell]

Hello,

In the works of rewriting hurdselect.c I have some question on how to
write patches. The changed code contains three parts:
1) Introducing three cases: DELAY, POLL, and SELECT
2) Removing the unneeded code for each case statement
3) Rewriting the poll case to be compliant with POSIX

Doing the first part makes a diff with the original code not so useful,
especially when the second part has been done. I have the following
questions:
Q1) Should I still send the new code in patch format?
Q2) Should there be three patches, one for each change?
Q3) Part 3) is not yet finished, Should I wait until it is complete?