On Thu, Oct 11, 2018 at 08:14:19AM +0300, Kirill A. Shutemov wrote: > On Wed, Oct 10, 2018 at 05:46:18PM -0700, Joel Fernandes wrote: > > diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h > > index 391ed2c3b697..8a33f2044923 100644 > > --- a/arch/powerpc/include/asm/book3s/64/pgalloc.h > > +++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h > > @@ -192,14 +192,12 @@ static inline pgtable_t pmd_pgtable(pmd_t pmd) > > return (pgtable_t)pmd_page_vaddr(pmd); > > } > > > > -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, > > - unsigned long address) > > +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) > > { > > return (pte_t *)pte_fragment_alloc(mm, address, 1); > > } > > This is obviously broken. I've checked pte_fragment_alloc() and it doesn't use the address too. We need to modify it too. -- Kirill A. Shutemov