| Date | Thu, 10 Jun 2021 12:43:12 +0300 | From | "Kirill A. Shutemov" <> | Subject | Re: [PATCH 11/11] mm/thp: another PVMW_SYNC fix in page_vma_mapped_walk() |
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On Wed, Jun 09, 2021 at 11:54:46PM -0700, Hugh Dickins wrote: > Aha! Shouldn't that quick scan over pte_none()s make sure that it holds > ptlock in the PVMW_SYNC case? That too might have been responsible for > BUGs or WARNs in split_huge_page_to_list() or its unmap_page(), though > I've never seen any. > > Fixes: ace71a19cec5 ("mm: introduce page_vma_mapped_walk()") > Signed-off-by: Hugh Dickins <hughd@google.com> > Cc: <stable@vger.kernel.org>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
-- Kirill A. Shutemov
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