From: Kiryl Shutsemau <kirill@shutemov.name>
To: sashiko-reviews@lists.linux.dev
Cc: kvm@vger.kernel.org, akpm@linux-foundation.org, rppt@kernel.org,
peterx@redhat.com, david@kernel.org, ljs@kernel.org,
surenb@google.com, vbabka@kernel.org, Liam.Howlett@oracle.com,
ziy@nvidia.com, corbet@lwn.net, skhan@linuxfoundation.org,
seanjc@google.com, pbonzini@redhat.com, jthoughton@google.com,
aarcange@redhat.com, sj@kernel.org, usama.arif@linux.dev,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org,
kernel-team@meta.com
Subject: Re: [PATCH v4 10/14] mm/pagemap: add PAGE_IS_ACCESSED for RWP tracking
Date: Mon, 25 May 2026 16:29:24 +0100 [thread overview]
Message-ID: <ahRqq3NBCEVx9BTU@thinkstation> (raw)
In-Reply-To: <20260525122659.BB52A1F000E9@smtp.kernel.org>
On Mon, May 25, 2026 at 12:26:59PM +0000, sashiko-bot@kernel.org wrote:
> Thank you for your contribution! Sashiko AI review found 1 potential issue(s) to consider:
> - [High] Returning -EINVAL from pagemap_scan_test_walk() aborts the
> scan destructively, permanently losing read results for already
> write-protected pages in preceding VMAs.
Confirmed. The non-wp-allowed branch right below already follows the
right convention -- silently skip with `return 1` so the walk continues.
Will fix in v5 the same way:
- return -EINVAL;
+ return 1;
> --
> Sashiko AI review · https://sashiko.dev/#/patchset/20260525113737.1942478-1-kas@kernel.org?part=10
--
Kiryl Shutsemau / Kirill A. Shutemov
next prev parent reply other threads:[~2026-05-25 15:29 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-25 11:37 [PATCH v4 00/14] userfaultfd: working set tracking for VM guest memory Kiryl Shutsemau (Meta)
2026-05-25 11:37 ` [PATCH v4 01/14] mm: decouple protnone helpers from CONFIG_NUMA_BALANCING Kiryl Shutsemau (Meta)
[not found] ` <20260525120640.328441F000E9@smtp.kernel.org>
2026-05-25 14:41 ` Kiryl Shutsemau
2026-05-25 11:37 ` [PATCH v4 02/14] mm: rename uffd-wp PTE bit macros to uffd Kiryl Shutsemau (Meta)
2026-05-25 11:37 ` [PATCH v4 03/14] mm: rename uffd-wp PTE accessors " Kiryl Shutsemau (Meta)
[not found] ` <20260525120513.C51E91F00A3A@smtp.kernel.org>
2026-05-25 14:43 ` Kiryl Shutsemau
2026-05-25 19:31 ` Andrew Morton
2026-05-25 11:37 ` [PATCH v4 04/14] mm: add VM_UFFD_RWP VMA flag Kiryl Shutsemau (Meta)
[not found] ` <20260525121916.831DA1F000E9@smtp.kernel.org>
2026-05-25 14:59 ` Kiryl Shutsemau
2026-05-25 11:37 ` [PATCH v4 05/14] mm: add MM_CP_UFFD_RWP change_protection() flag Kiryl Shutsemau (Meta)
[not found] ` <20260525121319.3B03D1F000E9@smtp.kernel.org>
2026-05-25 15:03 ` Kiryl Shutsemau
2026-05-25 11:37 ` [PATCH v4 06/14] mm: preserve RWP marker across PTE rewrites Kiryl Shutsemau (Meta)
[not found] ` <20260525120819.C18561F000E9@smtp.kernel.org>
2026-05-25 15:07 ` Kiryl Shutsemau
2026-05-25 11:37 ` [PATCH v4 07/14] mm: handle VM_UFFD_RWP in khugepaged, rmap, and GUP Kiryl Shutsemau (Meta)
[not found] ` <20260525131923.11A1B1F000E9@smtp.kernel.org>
2026-05-25 15:18 ` Kiryl Shutsemau
2026-05-25 11:37 ` [PATCH v4 08/14] userfaultfd: add UFFDIO_REGISTER_MODE_RWP and UFFDIO_RWPROTECT plumbing Kiryl Shutsemau (Meta)
[not found] ` <20260525121111.E857E1F000E9@smtp.kernel.org>
2026-05-25 15:19 ` Kiryl Shutsemau
2026-05-25 11:37 ` [PATCH v4 09/14] mm/userfaultfd: add RWP fault delivery and expose UFFDIO_REGISTER_MODE_RWP Kiryl Shutsemau (Meta)
[not found] ` <20260525121858.57D0B1F000E9@smtp.kernel.org>
2026-05-25 15:27 ` Kiryl Shutsemau
2026-05-25 11:37 ` [PATCH v4 10/14] mm/pagemap: add PAGE_IS_ACCESSED for RWP tracking Kiryl Shutsemau (Meta)
[not found] ` <20260525122659.BB52A1F000E9@smtp.kernel.org>
2026-05-25 15:29 ` Kiryl Shutsemau [this message]
2026-05-25 11:37 ` [PATCH v4 11/14] userfaultfd: add UFFD_FEATURE_RWP_ASYNC for async fault resolution Kiryl Shutsemau (Meta)
[not found] ` <20260525123622.DEF511F000E9@smtp.kernel.org>
2026-05-25 15:35 ` Kiryl Shutsemau
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