[RFC] [PATCH 0/1] [MTD] UBI: implement per-volume update

[Artem Bityutskiy]

Hello Alexander,

I've implemented per-volume update based on your patch. Thank you for
your work - I have added a credit statement for you in the code.

In addition to what your patch does, this patch cleans-up and more
comments and makes them consistent to new update marker stuff. It
also removes the insane ivol_data from the VID header. It refines
semantics of 'corrupted' flag better.

Please, review it and try it.