linux-kernel - Re: [PATCH v4 3/5] powerpc/mm: allow memory hotplug into a memoryless node

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Date:   Tue, 25 Oct 2016 20:39:45 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Balbir Singh <bsingharora@...il.com>,
        Reza Arbab <arbab@...ux.vnet.ibm.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     Bharata B Rao <bharata@...ux.vnet.ibm.com>,
        Nathan Fontenot <nfont@...ux.vnet.ibm.com>,
        Stewart Smith <stewart@...ux.vnet.ibm.com>,
        Alistair Popple <apopple@....ibm.com>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
        Tang Chen <tangchen@...fujitsu.com>,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        devicetree@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH v4 3/5] powerpc/mm: allow memory hotplug into a memoryless node

Balbir Singh <bsingharora@...il.com> writes:
> FYI, these checks were temporary to begin with
>
> I found this in git history
>
> b226e462124522f2f23153daff31c311729dfa2f (powerpc: don't add memory to empty node/zone)

Nice thanks for digging it up.

  commit b226e462124522f2f23153daff31c311729dfa2f
  Author:     Mike Kravetz <kravetz@...ibm.com>
  AuthorDate: Fri Dec 16 14:30:35 2005 -0800
                                  ^^^^
                                  
That is why maintainers don't like to merge "temporary" patches :)

cheers