From: Reza Arbab <arbab@linux.vnet.ibm.com>
To: Michal Hocko <mhocko@kernel.org>
Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mgorman@suse.de>, Vlastimil Babka <vbabka@suse.cz>,
Andrea Arcangeli <aarcange@redhat.com>,
Jerome Glisse <jglisse@redhat.com>,
Yasuaki Ishimatsu <yasu.isimatu@gmail.com>,
qiuxishi@huawei.com, Kani Toshimitsu <toshi.kani@hpe.com>,
slaoub@gmail.com, Joonsoo Kim <js1304@gmail.com>,
Andi Kleen <ak@linux.intel.com>,
David Rientjes <rientjes@google.com>,
Daniel Kiper <daniel.kiper@oracle.com>,
Igor Mammedov <imammedo@redhat.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
LKML <linux-kernel@vger.kernel.org>,
Michal Hocko <mhocko@suse.com>
Subject: Re: [RFC PATCH 2/2] mm, memory_hotplug: drop CONFIG_MOVABLE_NODE
Date: Wed, 24 May 2017 16:51:37 -0500 [thread overview]
Message-ID: <20170524215136.itrsuwtthq65s3av@arbab-laptop.localdomain> (raw)
In-Reply-To: <20170524122411.25212-3-mhocko@kernel.org>
On Wed, May 24, 2017 at 02:24:11PM +0200, Michal Hocko wrote:
>20b2f52b73fe ("numa: add CONFIG_MOVABLE_NODE for movable-dedicated
>node") has introduced CONFIG_MOVABLE_NODE without a good explanation on
>why it is actually useful. It makes a lot of sense to make movable node
>semantic opt in but we already have that because the feature has to be
>explicitly enabled on the kernel command line. A config option on top
>only makes the configuration space larger without a good reason. It also
>adds an additional ifdefery that pollutes the code. Just drop the config
>option and make it de-facto always enabled. This shouldn't introduce any
>change to the semantic.
Acked-by: Reza Arbab <arbab@linux.vnet.ibm.com>
--
Reza Arbab
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next prev parent reply other threads:[~2017-05-24 21:51 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-24 12:24 [RFC PATCH 0/2] remove CONFIG_MOVABLE_NODE Michal Hocko
2017-05-24 12:24 ` [RFC PATCH 1/2] mm, memory_hotplug: drop artificial restriction on online/offline Michal Hocko
2017-05-24 12:44 ` Vlastimil Babka
2017-05-24 12:55 ` Michal Hocko
2017-05-24 21:50 ` Reza Arbab
2017-05-25 6:28 ` Michal Hocko
2017-05-24 12:24 ` [RFC PATCH 2/2] mm, memory_hotplug: drop CONFIG_MOVABLE_NODE Michal Hocko
2017-05-24 12:53 ` Vlastimil Babka
2017-05-24 13:42 ` Michal Hocko
2017-05-24 15:17 ` Vlastimil Babka
2017-05-25 6:27 ` Michal Hocko
2017-05-25 8:41 ` Vlastimil Babka
2017-05-24 13:30 ` Igor Mammedov
2017-05-24 13:50 ` Michal Hocko
2017-05-24 21:51 ` Reza Arbab [this message]
2017-05-25 12:03 ` [RFC PATCH 0/2] remove CONFIG_MOVABLE_NODE Michal Hocko
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