linux-kernel - Re: [PATCH 0/5] mm, kvm: add guest_memfd support for uffd minor faults

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Message-ID: <6d2d4b0a-a1dc-48a4-83c1-1fe02f294181@kernel.org>
Date: Mon, 24 Nov 2025 11:59:26 +0100
From: "David Hildenbrand (Red Hat)" <david@...nel.org>
To: Mike Rapoport <rppt@...nel.org>, linux-mm@...ck.org
Cc: Andrea Arcangeli <aarcange@...hat.com>,
 Andrew Morton <akpm@...ux-foundation.org>,
 Axel Rasmussen <axelrasmussen@...gle.com>,
 Baolin Wang <baolin.wang@...ux.alibaba.com>, Hugh Dickins
 <hughd@...gle.com>, James Houghton <jthoughton@...gle.com>,
 "Liam R. Howlett" <Liam.Howlett@...cle.com>,
 Lorenzo Stoakes <lorenzo.stoakes@...cle.com>, Michal Hocko
 <mhocko@...e.com>, Nikita Kalyazin <kalyazin@...zon.com>,
 Paolo Bonzini <pbonzini@...hat.com>, Peter Xu <peterx@...hat.com>,
 Sean Christopherson <seanjc@...gle.com>, Shuah Khan <shuah@...nel.org>,
 Suren Baghdasaryan <surenb@...gle.com>, Vlastimil Babka <vbabka@...e.cz>,
 linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
 linux-kselftest@...r.kernel.org
Subject: Re: [PATCH 0/5] mm, kvm: add guest_memfd support for uffd minor
 faults

On 11/23/25 11:27, Mike Rapoport wrote:
> From: "Mike Rapoport (Microsoft)" <rppt@...nel.org>
> 
> Hi,
> 
> These patches allow guest_memfd to notify userspace about minor page
> faults using userfaultfd and let userspace to resolve these page faults
> using UFFDIO_CONTINUE.
> 
> To allow UFFDIO_CONTINUE outside of the core mm I added a get_shmem_folio()

get_shared_folio() I assume :)

-- 
Cheers

David