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b=P9/T/C4+DQWqHEIA1MoTbGMoBRNFLJrpXYIZhMdJAt0H7icjnSl5ziMckSUpLNGVS awZahl3ejlwlNMkhPxFZwj5mFiQwMYumgnStxIOEG2fcvFjrvdwjfwHgWATzaJGoCA JwGeanc1xWH4ih5RY6ijMUzN0PQVqQo2XR55ZrtV78CURLnLOlVXIObY75z1aRlaH+ xlghd96giFex5Apzl/bE5NKzCC2S+ThoHE+J6IZfZZirepUTJ0Nj4L9YucYI+cm7cD Vt1etHebMXaRr2SbVKpwPfLABRl4h7YEiA2dSOe5m/h27Rd1ICT3JRSdqTxoxMcMqo WXA5Cg13ZTZQA== From: Pratyush Yadav To: Pasha Tatashin Cc: Pratyush Yadav , linux-mm@kvack.org, lsf-pc@lists.linux-foundation.org, Mike Rapoport , David Rientjes , Muchun Song , Oscar Salvador , David Hildenbrand , Jason Gunthorpe , Alexander Graf , David Matlack Subject: Re: [LSF/MM/BPF TOPIC] HugeTLB file preservation across live update In-Reply-To: (Pasha Tatashin's message of "Sat, 7 Feb 2026 11:21:45 -0500") References: <2vxz1pixvk4m.fsf@kernel.org> Date: Tue, 10 Feb 2026 14:47:44 +0100 Message-ID: <2vxzms1gsoan.fsf@kernel.org> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 5ED1640005 X-Stat-Signature: t4ys1ofi6ysxqi7z8oer65gx7xmswajd X-Rspam-User: X-HE-Tag: 1770731268-997815 X-HE-Meta: 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 Nm/sx3ZA CcWk0fFafGZ0Jb4FA8/UX4+Ae9KAMPlu8k18Q+8sfXYT6O6eVQYnFaNe2asOEqNU2YS1fgSc9fel7OgdxiSccNp88AFn7nNXUXEPyR56W/rPBODXrk2sCUK9uaUcVl2OX8vyTW3RZd1A2G/In04b3IO25sjBkha6ATLv8rkdm+rPLX6nOrlE5p7mdKKd1zdHalguz346j9nCin05wF8NOaOy2O2W3C6MQblFFcyosC8jITsJhlqxKLtMh9A== 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: Hi Pasha, On Sat, Feb 07 2026, Pasha Tatashin wrote: > On Fri, Feb 6, 2026 at 12:48=E2=80=AFPM Pratyush Yadav wrote: >> [...] >> Goals of the discussion >> ----------------------- >> >> This session will aim to present the topic, explain why it is needed, >> show how the support works, and most importantly, collect feedback on >> how to proceed with this work. >> >> PS: if any HugeTLB developers or maintainers are reading this, it would >> be great to have your initial thoughts on the RFC [4] so I can present a >> more polished patchset at the conference and make the most of the >> discussion. > > Thank you Pratyush for proposing this topic. A few more thoughts: > While the discussion should be about memfd+hugetlb support, the long > term goal is to make this work as an enabler for guestmemfd+hugetlb > preservation support. Yes, I plan to use the HugeTLB work here as the backend for guest_memfd+hugetlb preservation. I can discuss some ideas for that in my talk if time permits. Or do you think that should be a separate talk? [...] --=20 Regards, Pratyush Yadav