_PAGE_NX          104 arch/x86/include/asm/pgtable_types.h #define _PAGE_NX	(_AT(pteval_t, 1) << _PAGE_BIT_NX)
_PAGE_NX          107 arch/x86/include/asm/pgtable_types.h #define _PAGE_NX	(_AT(pteval_t, 0))