tree 345d60347d63bdc9973a2447d84024776b73dd2f
parent 16f557ecbf96dd13d13788a6f62d4d97ae73b1f9
author Artem Bityutskiy <Artem.Bityutskiy@nokia.com> 1197817171 +0200
committer Artem Bityutskiy <Artem.Bityutskiy@nokia.com> 1198689317 +0200

UBI: add UBI control device

This patch is a preparation to make UBI devices dynamic. It
adds an UBI control device which has dynamically allocated
major number and registers itself as "ubi_ctrl". It does not
do anything so far. The idea is that this device will allow
to attach/detach MTD devices from userspace.

This is symilar to what the Linux device mapper has.

The next things to do are:
* Fix UBI, because it now assumes UBI devices cannot go away
* Implement control device ioctls which will attach/detach MTD
  devices

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>