[PATCH 0/2] mm: vmemmap: add vmemmap_verify check for hot-add node/memory case

Yinghai Lu yinghai at kernel.org
Thu Apr 11 11:10:28 EDT 2013


On Thu, Apr 11, 2013 at 12:41 AM, Tang Chen <tangchen at cn.fujitsu.com> wrote:
>
> 3. If we add flag to memblock, we can mark different memory. And I remember
>    you mentioned before that we can use memblock to reserve local node data
>    for node-life-cycle data, like vmemmap, pagetable.
>
>    So are you doing the similar work now ?

No, i did not start it yet.

>
>    If not, I think I can merge it into mine, and push a new patch-set with
>    hot-add, hot-remove code modified to support putting vmemmap, pagetable,
>    pgdat, page_cgroup, ..., on local node.

Need to have it separated with moving_zone.

1. rework memblock to keep alive all the way for hotplug usage.
2. put pagetable and vmemap on the local node range with help of memblock.


Thanks

Yinghai



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