On Fri, Sep 11, 2020 at 09:03:06PM +0200, Vasily Gorbik wrote: > diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h > index e8cbc2e795d5..e899d3506671 100644 > +++ b/include/linux/pgtable.h > @@ -1427,6 +1427,16 @@ typedef unsigned int pgtbl_mod_mask; > #define mm_pmd_folded(mm) __is_defined(__PAGETABLE_PMD_FOLDED) > #endif > > +#ifndef p4d_offset_lockless > +#define p4d_offset_lockless(pgdp, pgd, address) p4d_offset(&pgd, address) > +#endif > +#ifndef pud_offset_lockless > +#define pud_offset_lockless(p4dp, p4d, address) pud_offset(&p4d, address) > +#endif > +#ifndef pmd_offset_lockless > +#define pmd_offset_lockless(pudp, pud, address) pmd_offset(&pud, address) Needs brackets: &(pgd) These would probably be better as static inlines though, as only s390 compiles will type check pudp like this. Jason
