[PATCH 22/348] Fix -Wsahdow warnings

[Joel Brobecker]

> please condense down your patches if you resend.  there's way too many
> little tiny ones that really should be squashed into a single
> changeset.

In my view, if the patches can be checked in independently, then
it is a good thing that they are split. Imagine the situation where
one of these changes is bad, we'd then be able to revert that one
patch, rather than fixing by hand.

> your ChangeLogs are also incorrect.  it should not be:
> 	* bcache.c (expand_hash_table): Fix -Wshadow warnings.
> but rather:
> 	* bcache.c (expand_hash_table): Rename bcache to cache.

I'm 50/50 on this. I don't mind either way. What do others think?
Is that really that important that we must create boring extra work
for Andrey?

-- 
Joel