>@@ -162,7 +198,7 @@ __change_page_attr(unsigned long address
> /* on x86-64 the direct mapping set at boot is not using 4k pages */
> BUG_ON(PageReserved(kpte_page));
>
>- save_page(kpte_page);
>+ save_page(kpte_page, 0);
> if (page_private(kpte_page) == 0)
> revert_page(address, ref_prot);
> return 0;
What is the point of continuing to launder kpte_page here? Page table pages
never get their caching attributes changed, nor would their direct mapping
ever change. (Same for i386, obviously.)
Jan
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