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Date: Thu, 11 Apr 2013 08:10:28 -0700
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Subject: Re: [PATCH 0/2] mm: vmemmap: add vmemmap_verify check for hot-add
 node/memory case
From: Yinghai Lu <yinghai@kernel.org>
To: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Lin Feng <linfeng@cn.fujitsu.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Christoph Lameter <cl@linux.com>, Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
        Catalin Marinas <catalin.marinas@arm.com>, will.deacon@arm.com,
        Arnd Bergmann <arnd@arndb.de>, tony@atomide.com,
        Ben Hutchings <ben@decadent.org.uk>,
        linux-arm-kernel@lists.infradead.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        "the arch/x86 maintainers" <x86@kernel.org>,
        Linux MM <linux-mm@kvack.org>,
        Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>,
        Jiang Liu <jiang.liu@huawei.com>
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On Thu, Apr 11, 2013 at 12:41 AM, Tang Chen <tangchen@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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