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SubjectRe: [PATCH v8 3/3] mm: reinititalise user and admin reserves if memory is added or removed
On 04/10/2013 08:11 AM, Andrew Shewmaker wrote:
> On Tue, Apr 9, 2013 at 6:05 PM, Simon Jeons <simon.jeons@gmail.com> 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@linux-foundation.org>
>>> wrote:
>>>> On Mon, 8 Apr 2013 17:00:40 -0400 Andrew Shewmaker <agshew@gmail.com>
>>>> 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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