From: Hou Tao <houtao1@huawei.com> hulk inclusion category: feature bugzilla: https://atomgit.com/openeuler/kernel/issues/10302 -------------------------------- Select ARCH_WANT_OPTIMIZE_P2PDMA_VMEMMAP on x86-64. This declares that the architecture supports compound-page vmemmap deduplication for aligned P2PDMA resources independently of the DAX capability. Signed-off-by: Hou Tao <houtao1@huawei.com> Signed-off-by: Zizhi Wo <wozizhi@huawei.com> --- arch/x86/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index c9e017f4488d..4c625d9ebe06 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -135,10 +135,11 @@ config X86 select ARCH_WANT_GENERAL_HUGETLB select ARCH_WANT_HUGE_PMD_SHARE select ARCH_HAS_OPTIMIZED_POLL select ARCH_WANT_LD_ORPHAN_WARN select ARCH_WANT_OPTIMIZE_DAX_VMEMMAP if X86_64 + select ARCH_WANT_OPTIMIZE_P2PDMA_VMEMMAP if X86_64 select ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP if X86_64 select ARCH_WANTS_THP_SWAP if X86_64 select ARCH_HAS_PARANOID_L1D_FLUSH select BUILDTIME_TABLE_SORT select CLKEVT_I8253 -- 2.52.0