Andrea Arcangeli wrote:
> diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
> --- a/include/asm-generic/pgtable.h
> +++ b/include/asm-generic/pgtable.h
> @@ -44,8 +44,10 @@
> ({ \
> int __young; \
> __young = ptep_test_and_clear_young(__vma, __address, __ptep); \
> - if (__young) \
> + if (__young) { \
> flush_tlb_page(__vma, __address); \
> + mmu_notifier(age_page, (__vma)->vm_mm, __address); \
> + } \
> __young; \
> })
>
I think that unconditionally doing
__young |= mmu_notifier(test_and_clear_young, ...);
allows hardware with accessed bits more control over what is going on.
--
error compiling committee.c: too many arguments to function
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