Re: [PATCH 3/8] add mem64_min/max control

Yinghai Lu
2012-11-17T07:06:27Z

On Fri, Nov 16, 2012 at 10:18 PM, Eric W. Biederman
<ebiederm@xmission.com> wrote:
> Yinghai Lu <yinghai@kernel.org> writes:
>
>> So could limit range for 4g above buffers.
>
> What is wrong with mem-min and mem-max? At this point in the patchset
> it looks like you are introducing mem64-min and mem64-max as a hack to
> avoid fixing mem-min and mem-max properly.

if we set mem-min high, some buffers for purgatory and real_mode can
not be allocated properly.

mem64-min and mem64-max are used to limit range for buffer that could
stay above 4g.
like limit them one range belong to one node only.