[PATCH] md - 0 of 2 - Introduction

Here are two patches for md that I believe are suitable
for 2.6.4.

1/ change yield() to schedule_timeout(2) as promised a while back.

2/ Support assembling partitionable raid at boot-time so that it is
   possible to boot from a partition of a raid array without needing
   an initramfs.

Thanks,
NeilBrown