Messages in this thread | | | From | "Kirill A. Shutemov" <> | Subject | RE: [PATCH] x86, mm: get ASLR work for hugetlb mappings | Date | Mon, 4 Nov 2013 12:41:52 +0200 (EET) |
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Kirill A. Shutemov wrote: > Matthew noticed that hugetlb doesn't participate in ASLR on x86-64. > The reason is genereic hugetlb_get_unmapped_area() which is used on > x86-64. It doesn't support randomization and use bottom-up unmapped area > lookup, instead of usual top-down on x86-64. > > x86 has arch-specific hugetlb_get_unmapped_area(), but it's used only on > x86-32. > > Let's use arch-specific hugetlb_get_unmapped_area() on x86-64 too. > It fixes the issue and make hugetlb use top-down unmapped area lookup. > > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> > Cc: Matthew Wilcox <willy@linux.intel.com>
Andrew, any comments?
-- Kirill A. Shutemov
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