RE: raid5: coding style cleanup / refactor

From: Andrew Morton [mailto:akpm@linux-foundation.org]
Unfortunately these cleanups get into a huge fight with your very own
git-md-accel.patch:

Yes, you missed the note that said:

	Note, I have not rebased git-md-accel yet.  While that is
happening I
	wanted to have this patch out for review.

I assume that you're prepared to repair all that damage to your tree,

but

it seems a bit masochistic?

It's either this or have an inconsistent coding style throughout
raid5.c.  I figure it is worth it to have reduced code duplication
between raid5 and raid6, and it makes it easier to add new cache
features going forward.  I have a few more cleanups to add for a rev2 of
this patch, but I will hold that off until the rebase is done.

Dan