From: Peter Xu <peterx@redhat.com>
To: Kiryl Shutsemau <kas@kernel.org>
Cc: "David Hildenbrand (Arm)" <david@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Lorenzo Stoakes <ljs@kernel.org>, Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Vlastimil Babka <vbabka@kernel.org>,
"Liam R . Howlett" <Liam.Howlett@oracle.com>,
Zi Yan <ziy@nvidia.com>, Jonathan Corbet <corbet@lwn.net>,
Shuah Khan <skhan@linuxfoundation.org>,
Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>,
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
Date: Thu, 23 Apr 2026 10:50:06 -0400 [thread overview]
Message-ID: <aeoxnuGKO3uqS2kG@x1.local> (raw)
In-Reply-To: <aeorZMvKwu8zKX5i@thinkstation>
Hello, Kiryl,
On Thu, Apr 23, 2026 at 03:27:11PM +0100, Kiryl Shutsemau wrote:
> The patchet is pretty good shape in my eyes and will probably drop RFC
> tag.
I still have some high level questions not yet got answered. Do you want
to answer them?
https://lore.kernel.org/all/ad59TxAHNwFWH7Cc@x1.local/
In summary, it's about:
- Whether we have explored other approaches on page hotness tracking
- Whether read protection is required for an userspace swap system
(e.g. did you get time to have a look at umap?)
Thanks,
--
Peter Xu
next prev parent reply other threads:[~2026-04-23 14:50 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-14 14:23 [RFC, PATCH 00/12] userfaultfd: working set tracking for VM guest memory Kiryl Shutsemau (Meta)
2026-04-14 14:23 ` [RFC, PATCH 01/12] userfaultfd: define UAPI constants for anonymous minor faults Kiryl Shutsemau (Meta)
2026-04-14 14:23 ` [RFC, PATCH 02/12] userfaultfd: add UFFD_FEATURE_MINOR_ANON registration support Kiryl Shutsemau (Meta)
2026-04-14 14:23 ` [RFC, PATCH 03/12] userfaultfd: implement UFFDIO_DEACTIVATE ioctl Kiryl Shutsemau (Meta)
2026-04-14 14:23 ` [RFC, PATCH 04/12] userfaultfd: UFFDIO_CONTINUE for anonymous memory Kiryl Shutsemau (Meta)
2026-04-14 14:23 ` [RFC, PATCH 05/12] mm: intercept protnone faults on VM_UFFD_MINOR anonymous VMAs Kiryl Shutsemau (Meta)
2026-04-14 14:23 ` [RFC, PATCH 06/12] userfaultfd: auto-resolve shmem and hugetlbfs minor faults in async mode Kiryl Shutsemau (Meta)
2026-04-14 14:23 ` [RFC, PATCH 07/12] sched/numa: skip scanning anonymous VM_UFFD_MINOR VMAs Kiryl Shutsemau (Meta)
2026-04-14 14:23 ` [RFC, PATCH 08/12] userfaultfd: enable UFFD_FEATURE_MINOR_ANON Kiryl Shutsemau (Meta)
2026-04-14 14:23 ` [RFC, PATCH 09/12] mm/pagemap: add PAGE_IS_UFFD_DEACTIVATED to PAGEMAP_SCAN Kiryl Shutsemau (Meta)
2026-04-14 14:23 ` [RFC, PATCH 10/12] userfaultfd: add UFFDIO_SET_MODE for runtime sync/async toggle Kiryl Shutsemau (Meta)
2026-04-15 15:08 ` Usama Arif
2026-04-16 13:27 ` Kiryl Shutsemau
2026-04-14 14:23 ` [RFC, PATCH 11/12] selftests/mm: add userfaultfd anonymous minor fault tests Kiryl Shutsemau (Meta)
2026-04-14 14:23 ` [RFC, PATCH 12/12] Documentation/userfaultfd: document working set tracking Kiryl Shutsemau (Meta)
2026-04-14 15:28 ` [RFC, PATCH 00/12] userfaultfd: working set tracking for VM guest memory Peter Xu
2026-04-14 17:08 ` Kiryl Shutsemau
2026-04-14 17:45 ` Peter Xu
2026-04-14 15:37 ` David Hildenbrand (Arm)
2026-04-14 17:10 ` Kiryl Shutsemau
2026-04-16 13:49 ` Kiryl Shutsemau
2026-04-16 18:32 ` David Hildenbrand (Arm)
2026-04-16 20:25 ` Kiryl Shutsemau
2026-04-17 11:02 ` Kiryl Shutsemau
2026-04-17 11:43 ` David Hildenbrand (Arm)
2026-04-17 12:26 ` Kiryl Shutsemau
2026-04-19 14:33 ` Kiryl Shutsemau
2026-04-21 13:03 ` David Hildenbrand (Arm)
2026-04-21 14:33 ` Kiryl Shutsemau
2026-04-22 9:27 ` Kiryl Shutsemau
2026-04-22 18:27 ` David Hildenbrand (Arm)
2026-04-22 18:39 ` David Hildenbrand (Arm)
2026-04-23 14:27 ` Kiryl Shutsemau
2026-04-23 14:50 ` Peter Xu [this message]
2026-04-23 18:08 ` Kiryl Shutsemau
2026-04-23 18:57 ` Peter Xu
2026-04-23 19:25 ` David Hildenbrand (Arm)
2026-04-23 20:10 ` Peter Xu
2026-04-24 11:37 ` Kiryl Shutsemau
2026-04-24 12:59 ` Peter Xu
2026-04-25 5:56 ` David Hildenbrand (Arm)
2026-04-24 0:26 ` SeongJae Park
2026-04-24 11:55 ` Peter Xu
2026-04-24 23:59 ` SeongJae Park
2026-04-24 10:34 ` Kiryl Shutsemau
2026-04-24 11:51 ` Peter Xu
2026-04-24 13:49 ` Kiryl Shutsemau
2026-04-24 15:55 ` Peter Xu
2026-04-24 16:09 ` Peter Xu
2026-04-27 10:52 ` Kiryl Shutsemau
2026-04-25 6:05 ` David Hildenbrand (Arm)
2026-04-27 10:23 ` Kiryl Shutsemau
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