#ifndef set_ptes /** * set_ptes - Map consecutive pages to a contiguous range of addresses. @@ -231,7 +235,10 @@ static inline void set_ptes(struct mm_struct *mm, unsigned long addr, if (--nr == 0) break; ptep++; - pte = __pte(pte_val(pte) + (1UL << PFN_PTE_SHIFT)); + if (__pte_needs_invert(pte_val(pte))) + pte = __pte(pte_val(pte) - (1UL << PFN_PTE_SHIFT)); + else + pte = __pte(pte_val(pte) + (1UL << PFN_PTE_SHIFT)); }
Maybe we want some pte_advance() [or similar, you get the spirit] instead? Leaking this inverted-pte logic into common code really does look nasty. -- Cheers, David / dhildenb
