From: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Date: Sun, 16 Dec 2007 14:59:31 +0000 (+0200)
Subject: UBI: add UBI control device
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f6f5e263b1d7edfbb2faed57f4c54dcfd19e9423;p=pandora-kernel.git

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>
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