From: Balbir Singh <bsingharora@gmail.com>
To: Reza Arbab <arbab@linux.vnet.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Rob Herring <robh+dt@kernel.org>,
Frank Rowand <frowand.list@gmail.com>,
Jonathan Corbet <corbet@lwn.net>,
Andrew Morton <akpm@linux-foundation.org>
Cc: Bharata B Rao <bharata@linux.vnet.ibm.com>,
Nathan Fontenot <nfont@linux.vnet.ibm.com>,
Stewart Smith <stewart@linux.vnet.ibm.com>,
Alistair Popple <apopple@au1.ibm.com>,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, devicetree@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [PATCH v2 2/3] powerpc/mm: allow memory hotplug into a memoryless node
Date: Mon, 19 Sep 2016 21:53:49 +1000 [thread overview]
Message-ID: <15d62e9c-38e6-dfd3-0ee2-6885cbfbe315@gmail.com> (raw)
In-Reply-To: <1473883618-14998-3-git-send-email-arbab@linux.vnet.ibm.com>
On 15/09/16 06:06, Reza Arbab wrote:
> Remove the check which prevents us from hotplugging into an empty node.
>
> This limitation has been questioned before [1], and judging by the
> response, there doesn't seem to be a reason we can't remove it. No issues
> have been found in light testing.
>
> [1] http://lkml.kernel.org/r/CAGZKiBrmkSa1yyhbf5hwGxubcjsE5SmkSMY4tpANERMe2UG4bg@mail.gmail.com
> http://lkml.kernel.org/r/20160511215051.GF22115@arbab-laptop.austin.ibm.com
>
> Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com>
> Acked-by: Balbir Singh <bsingharora@gmail.com>
> Cc: Nathan Fontenot <nfont@linux.vnet.ibm.com>
> Cc: Bharata B Rao <bharata@linux.vnet.ibm.com>
> ---
> arch/powerpc/mm/numa.c | 13 +------------
> 1 file changed, 1 insertion(+), 12 deletions(-)
>
I presume you've tested with CONFIG_NODES_SHIFT of 8 (255 nodes?)
Balbir Singh.
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next prev parent reply other threads:[~2016-09-19 11:53 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-14 20:06 [PATCH v2 0/3] powerpc/mm: movable hotplug memory nodes Reza Arbab
2016-09-14 20:06 ` [PATCH v2 1/3] drivers/of: recognize status property of dt " Reza Arbab
2016-09-15 13:43 ` Rob Herring
2016-09-15 14:31 ` Reza Arbab
[not found] ` <1473883618-14998-2-git-send-email-arbab-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-09-19 10:11 ` Balbir Singh
2016-09-14 20:06 ` [PATCH v2 2/3] powerpc/mm: allow memory hotplug into a memoryless node Reza Arbab
2016-09-19 11:53 ` Balbir Singh [this message]
2016-09-21 5:50 ` Reza Arbab
2016-09-14 20:06 ` [PATCH v2 3/3] mm: enable CONFIG_MOVABLE_NODE on powerpc Reza Arbab
2016-09-19 6:29 ` Aneesh Kumar K.V
2016-09-21 5:45 ` Reza Arbab
2016-09-21 7:09 ` Aneesh Kumar K.V
2016-09-21 14:08 ` Reza Arbab
2016-09-21 14:43 ` Aneesh Kumar K.V
2016-09-21 22:29 ` Reza Arbab
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