[PATCH v2 2/2] restrict /dev/mem to idle io memory ranges

[Andrew Morton]

On Tue, 24 Nov 2015 16:34:19 -0800 Dan Williams <dan.j.williams at intel.com> wrote:

> > IOW, a very good description of the problem-being-solved would help out
> > a lot here...
> 
> I'll fold the eventual result of this discussion into the changelog if
> I can convince you it's worth moving forward.

I'm easily convinced ;) Please let's get all the info into the right
place, make sure it answers the thus-far-asked questions (at least) and
we'll take it from there.

And please do have a think about switching as much as possible over to
runtime-configurability.  Because "please echo foo > /proc" is a heck
of a lot nicer than "please reboot with iomem=" which is a heck of a lot
nicer than "please ask vendor for a new kernel".