On 21.05.19 18:11, Oscar Salvador wrote:
> On Tue, May 21, 2019 at 12:41:50PM +0200, David Hildenbrand wrote:
>>> +Future Work
>>> +===========
>>> +
>>> + - allowing memory hot-add to ZONE_MOVABLE. maybe we need some switch like
>>> + sysctl or new control file.
>>
>> ... that already works if I am not completely missing the point here
>
> It does.
>
>>> + - support HugeTLB page migration and offlining.
>>
>> ... I remember that Oscar was doing something in that area, Oscar?
>
> Yes, in general offlinining on hugetlb pages was already working, but we did not
> allow to offline 1GB-hugetlb pages on x86_64.
> I removed that limitation with
> ("commit: 10eeadf3045c mm,memory_hotplug: unlock 1GB-hugetlb on x86_64") , so now
> offlining on hugetlb pages should be fully operative.
>
>> I'd vote for removing the future work part, this is pretty outdated.
>
> Instead of removing it, I would rather make it consistent with the present.
> E.g:
>
> - Move page handling from memory-hotremove to offline stage
> - Enable a way to allocate vmemmap pages from hot-added memory
> etc.
>
>
Fair enough, but at least the current content is absolutely useless and
confusing/misleading.
--
Thanks,
David / dhildenb
