On Thu, Sep 29, 2022 at 03:29:14PM -0700, Rick Edgecombe wrote: > From: Yu-cheng Yu <yu-cheng.yu@xxxxxxxxx> > > With the introduction of shadow stack memory there are two ways a pte can > be writable: regular writable memory and shadow stack memory. > > In past patches, maybe_mkwrite() has been updated to apply pte_mkwrite() > or pte_mkwrite_shstk() depending on the VMA flag. This covers most cases > where a PTE is made writable. However, there are places where pte_mkwrite() > is called directly and the logic should now also create a shadow stack PTE > in the case of a shadow stack VMA. > > - do_anonymous_page() and migrate_vma_insert_page() check VM_WRITE > directly and call pte_mkwrite(), which is the same as maybe_mkwrite() > in logic and intention. Just change them to maybe_mkwrite(). Looks like you folded change for do_anonymous_page() into the wrong patch. I see the relevant change in the previous patch. -- Kiryl Shutsemau / Kirill A. Shutemov
