Re: [PATCH 3/6] userfaultfd: use userfaultfd_*() helpers instead of open coded flag tests
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From: Barry Song <baohua@kernel.org>
Date: 2026-08-23 21:14:22
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On Sun, Aug 23, 2026 at 8:18 PM Mike Rapoport (Microsoft) [off-list ref] wrote:
Move userfaultfd_{missing,wp,minor,rwp}() and userfaultfd_protected()
ahead of uffd_disable_huge_pmd_share() and uffd_disable_fault_around()
and make the latter two use the helpers rather than open coded VMA flag
masks.
Convert open coded VMA flag test in mfill_get_vma() to userfaultfd_wp()
as well.
With every user of the per-VMA uffd modes going through the helpers,
their underlying representation can be changed in the next step.
No functional change.
Assisted-by: copilot:claude-opus-5
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>LGTM, Reviewed-by: Barry Song <baohua@kernel.org>