On Mon, Mar 13, 2017 at 11:45:00AM -0400, Zi Yan wrote: > From: Naoya Horiguchi <[email protected]> > > Introduces CONFIG_ARCH_ENABLE_THP_MIGRATION to limit thp migration > functionality to x86_64, which should be safer at the first step. > > Signed-off-by: Naoya Horiguchi <[email protected]> > --- > v1 -> v2: > - fixed config name in subject and patch description > --- > arch/x86/Kconfig | 4 ++++ > include/linux/huge_mm.h | 10 ++++++++++ > mm/Kconfig | 3 +++ > 3 files changed, 17 insertions(+) > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index 69188841717a..a24bc11c7aed 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -2276,6 +2276,10 @@ config ARCH_ENABLE_HUGEPAGE_MIGRATION > def_bool y > depends on X86_64 && HUGETLB_PAGE && MIGRATION > > +config ARCH_ENABLE_THP_MIGRATION > + def_bool y > + depends on X86_64 && TRANSPARENT_HUGEPAGE && MIGRATION > +
TRANSPARENT_HUGEPAGE implies MIGRATION due to COMPACTION. -- Kirill A. Shutemov
