This change enables HugeTLB page migration for PPC64_BOOK3S systems for HugeTLB pages implemented at the PMD level. It enables the kernel configuration option ARCH_ENABLE_HUGEPAGE_MIGRATION which turns on 'hugepage_migration_supported' function which is checked for feature presence during migration.
Signed-off-by: Anshuman Khandual <[email protected]> --- arch/powerpc/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index c6920bb..cefc368 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -86,6 +86,10 @@ config GENERIC_HWEIGHT config ARCH_HAS_DMA_SET_COHERENT_MASK bool +config ARCH_ENABLE_HUGEPAGE_MIGRATION + def_bool y + depends on PPC_BOOK3S_64 && HUGETLB_PAGE && MIGRATION + config PPC bool default y -- 2.1.0
