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[2003:d8:2f4e:3200:c99d:a38b:3f3a:d4b3]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-427f009a75bsm21098836f8f.23.2025.10.21.08.01.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 21 Oct 2025 08:01:31 -0700 (PDT) Message-ID: <5703e7e6-f037-4b4d-be74-8c256e7a3e10@redhat.com> Date: Tue, 21 Oct 2025 17:01:30 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 3/4] mm: mprotect: convert to folio_needs_prot_numa() To: Lorenzo Stoakes , Kefeng Wang Cc: Andrew Morton , linux-mm@kvack.org, Zi Yan , Baolin Wang , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Liam.Howlett@oracle.com References: <1a97f0e2-fc97-4257-8540-cff06a789e32@huawei.com> <5ff1ee06-375b-4d5b-b513-7b8cab4e8139@redhat.com> <719c8df8-b4c9-4a6a-bedf-d62becdb09d2@redhat.com> <759578b3-d582-48cc-90af-491210ecd90f@lucifer.local> <3ee89484-9cdf-4c50-a5db-79b9f2ca6886@huawei.com> <967f61db-0ee3-4257-a44e-69ef15ced012@redhat.com> <944fe458-6391-4cb9-8719-dbaf69f3958d@lucifer.local> <72e2f6b9-d241-43aa-9a3b-2f13c763bef8@lucifer.local> <3554c866-5087-4beb-8d63-6a3cea02d431@huawei.com> <16ca4c3d-7c18-4cb9-bc04-d2eccb5d9b67@lucifer.local> From: David Hildenbrand Autocrypt: addr=david@redhat.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspam-User: X-Stat-Signature: kjmodg4hzkyazke3gjy5xwyg8p6fas4n X-Rspamd-Queue-Id: C462D120031 X-Rspamd-Server: rspam09 X-HE-Tag: 1761058896-863859 X-HE-Meta: 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 n9sjNmJH Y0z381Fs//Qs3WviEIe0+AX9AnV07fCqHdfkL8eNhl0cnkANaIyJdCpMBf8mf9IaiqULFCpQ5OLN8kj3pb1ST7STV4PngeFDkG2p5Uh3nXWg5+7ogv5XFkMZiGMYl9o97fDnGOplG0Xo1AvzmWQc6pZigTWS8hDX8hOwHqB1OofxCXayAr91zzCCKEbmQJspoQEn1uPx4/raY1m7/6Qmql68CmJOdLpH5CMOGfPkiHrmkC3d3Wqm5mYFZAfgDmmxVi8Mlu8xdPtGJLRDXipZZjK1wY98ceqTJMaTJIyTebYckGVeYVCGcZeXV2kTskVf1YLmwERv2aB7sT6dhfIRBBxbqKILZTr4M2ckiEeBeYCmWmIVEQZwpwO9gs2gRoWbwKvP78wwrGmw6R/jgjkqas24694vNbyp4m2HokSygRdfj/O8l274ivc10AdJeBKGS3nqAGBFJPt4kN7IoD9c0CBZajRvr0cjl8/Bh X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 21.10.25 16:56, Lorenzo Stoakes wrote: > On Tue, Oct 21, 2025 at 08:54:08PM +0800, Kefeng Wang wrote: >> >> >> On 2025/10/21 17:45, Lorenzo Stoakes wrote: >>> On Tue, Oct 21, 2025 at 10:25:08AM +0100, Lorenzo Stoakes wrote: >>>> On Tue, Oct 21, 2025 at 11:13:32AM +0200, David Hildenbrand wrote: >>>>> On 21.10.25 10:41, Kefeng Wang wrote: >>>>>> Maybe folio_needs_protnone_mapping()? >>>>> >>>>> I think prot_numa should be in the name one way or the other, because we >>>>> also have ordinary PROT_NONE unrealted to NUMA faults. >>>> >>>> folio_can_map_prot_numa() semes to me to be the best choice. >>>> >>> >>> I don't want to hold up the series so if you guys feel strongly, leave it >>> as-is. But this reads better to me. >> >> Let's keep things as-is for now. > > It'd be nice to have an argument as to why (I did say if you guys had > strong opinions...), but never mind. > folio_can_map_prot_numa() works for me, so we can just use that and call it a day :) -- Cheers David / dhildenb