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Thu, 23 Apr 2026 10:27:13 -0400 (EDT) Date: Thu, 23 Apr 2026 15:27:11 +0100 From: Kiryl Shutsemau To: "David Hildenbrand (Arm)" Cc: Andrew Morton , Peter Xu , Lorenzo Stoakes , Mike Rapoport , Suren Baghdasaryan , Vlastimil Babka , "Liam R . Howlett" , Zi Yan , Jonathan Corbet , Shuah Khan , Sean Christopherson , Paolo Bonzini , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, kvm@vger.kernel.org Subject: Re: [RFC, PATCH 00/12] userfaultfd: working set tracking for VM guest memory Message-ID: References: <1a499781-1115-44bc-adbf-2ac3769354ca@kernel.org> <4c635703-3d8d-4cfa-bb98-7f6f5fcbe547@kernel.org> <34f75083-29a3-4860-8a6e-94551d37ac6a@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: C1A991C0012 X-Stat-Signature: u8tac65ct4o4911op7fd9xp67hzoqx47 X-Rspam-User: X-HE-Tag: 1776954436-144497 X-HE-Meta: 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 hCaLIHey INHuXWB+X4mU64Cgh4gBeGiVqRNLNFX/ubYEKQ9DhEcAqB7GyzkDLCI0L+6SPuIU2U0fdaHeGvcyHTly17anE6rLyqNpGO5lPZvf1FPxqKpucxV2wI4BpBGDpfrHLFPeGmlXECcshvKLk7wPMIgdmu5ujYoXzvkIqlTJDrvasCCAw4JQZsbLcHy2IfteImOpD43cPiyyVLok5CqQ8fkD21E8hoR6/PK6eSAj+JgPXX6CKvzP/Luf2I6vi5mXHdnWnmSVJ01pSYF9N4HV7P9rhpQOEJ1vddrSaSh8LAapehq78RmM= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Apr 22, 2026 at 08:39:50PM +0200, David Hildenbrand (Arm) wrote: > On 4/21/26 16:33, Kiryl Shutsemau wrote: > > On Tue, Apr 21, 2026 at 03:03:56PM +0200, David Hildenbrand (Arm) wrote: > >> On 4/19/26 16:33, Kiryl Shutsemau wrote: > >>> > >>> See https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git uffd/rfc-v3 > >>> RFCv4 addresses all your feedback plus more :) https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git uffd/rfc-v4 Still plan to post it after v7.1-rc1 (unless you want it earlier). The patchet is pretty good shape in my eyes and will probably drop RFC tag. -- Kiryl Shutsemau / Kirill A. Shutemov