Re: [PATCH v8 3/3] mm: reinititalise user and admin reserves if memoryis added or removed

[Simon Jeons]

On 04/10/2013 08:11 AM, Andrew Shewmaker wrote:
> On Tue, Apr 9, 2013 at 6:05 PM, Simon Jeons <simon.jeons@xxxxxxxxx> wrote:
> > Hi Andrew,
> >
> > On 04/10/2013 07:56 AM, Andrew Shewmaker wrote:
> > > On Tue, Apr 9, 2013 at 4:19 PM, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> > > wrote:
> > > > On Mon, 8 Apr 2013 17:00:40 -0400 Andrew Shewmaker <agshew@xxxxxxxxx>
> > > > wrote:
> > > >
> > > > > Should I add the memory notifier code to mm/nommu.c too?
> > > > > I'm guessing that if a system doesn't have an mmu that it also
> > > > > won't be hotplugging memory.
> > > > I doubt if we need to worry about memory hotplug on nommu machines,
> > > > so just do the minimum which is required to get nommu to compile
> > > > and link.  That's probably "nothing".
> > > I haven't gotten myself set up to compile a nommu architecture, so I'll
> > > post
> > > my next version, and work on verifying it compiles and links later. But I
> > > I probably won't be able to get to that for a week and a half ... I'm
> > > leaving
> > > on my honeymoon in the next couple days :)
> >
> > How to compile a  nommu architecture? just config in menu config or a
> > physical machine?
> I was going to set up a qemu arm guest. Please, anyone, let me know if
> there's an easier way to test nommu builds on x86.

AFAK, arm7 is nommu.


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