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[ Upstream commit83d78ac677] Ryan sent a fix [1] for arm64 that applies to riscv too: in some hugetlb functions, we must not use the pte value to get the size of a mapping because the pte may not be present. So use the already present size parameter for huge_pte_clear() and the newly introduced size parameter for huge_ptep_get_and_clear(). And make sure to gather A/D bits only on present ptes. Fixes:82a1a1f3bf("riscv: mm: support Svnapot in hugetlb page") Link: https://lore.kernel.org/all/20250217140419.1702389-1-ryan.roberts@arm.com/ [1] Link: https://lore.kernel.org/r/20250317072551.572169-1-alexghiti@rivosinc.com Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> Signed-off-by: Sasha Levin <sashal@kernel.org>