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[91.12.99.85]) by smtp.gmail.com with ESMTPSA id l26sm7995576wmj.48.2019.11.27.11.52.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 27 Nov 2019 11:52:41 -0800 (PST) From: David Hildenbrand Mime-Version: 1.0 (1.0) Subject: Re: [PATCH v1] mm/memory_hotplug: don't check the nid in find_(smallest|biggest)_section_pfn Date: Wed, 27 Nov 2019 20:52:40 +0100 Message-Id: <7D8F1E5C-5A39-4C76-AD2F-4D0954DB57F5@redhat.com> References: Cc: David Hildenbrand , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Andrew Morton , Michal Hocko , Oscar Salvador In-Reply-To: To: Qian Cai X-Mailer: iPhone Mail (17A878) X-MC-Unique: 6-uzUPiFPjWefejOqf090w-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.112583, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: > Am 27.11.2019 um 20:37 schrieb Qian Cai : >=20 > =EF=BB=BF >=20 >> On Nov 27, 2019, at 2:06 PM, David Hildenbrand wrote: >>=20 >> The zone pointer is unique for every node. (in contrast to the zone inde= x). >=20 > I am not sure if it is worth optimizing there. The existing nid check loo= ks quite straight-forward and cheap. I understand but strongly dislike your attitude towards code changes ;) >=20