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([2620:10d:c090:500::3:b30e]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-126f503ea14sm5364457c88.16.2026.02.05.10.11.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 05 Feb 2026 10:11:04 -0800 (PST) Message-ID: <6c93932a-6adc-48bf-840e-f8ce8b56391f@gmail.com> Date: Thu, 5 Feb 2026 10:11:03 -0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC 01/12] mm: add PUD THP ptdesc and rmap support Content-Language: en-GB From: Usama Arif To: "David Hildenbrand (Arm)" , Matthew Wilcox Cc: Zi Yan , Kiryl Shutsemau , lorenzo.stoakes@oracle.com, Andrew Morton , linux-mm@kvack.org, hannes@cmpxchg.org, riel@surriel.com, shakeel.butt@linux.dev, baohua@kernel.org, dev.jain@arm.com, baolin.wang@linux.alibaba.com, npache@redhat.com, Liam.Howlett@oracle.com, ryan.roberts@arm.com, vbabka@suse.cz, lance.yang@linux.dev, linux-kernel@vger.kernel.org, kernel-team@meta.com References: <20260202005451.774496-1-usamaarif642@gmail.com> <20260202005451.774496-2-usamaarif642@gmail.com> <63D23D5F-AF35-4199-B52E-DFFC16DFDF91@nvidia.com> <05d5918f-b61b-4091-b8c6-20eebfffc3c4@gmail.com> <945064a3-b6ae-4257-afd7-5229cf8267a9@gmail.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Stat-Signature: ehfth6m94g7pxn3c1nfqumdtmtupw9dr X-Rspamd-Queue-Id: 1D7EC20009 X-Rspam-User: X-Rspamd-Server: rspam04 X-HE-Tag: 1770315065-394430 X-HE-Meta: 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 FaSAAO2M 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 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: >> >> (as raised elsewhere, staring with shmem support avoid the page table problem) >> > Also forgot to add here, I will look into this before PUD anon THPs first.