ESPFIX_PAGE_SPACE   47 arch/x86/kernel/espfix_64.c #define ESPFIX_MAX_CPUS		(ESPFIX_STACKS_PER_PAGE * ESPFIX_PAGE_SPACE)
ESPFIX_PAGE_SPACE  111 arch/x86/kernel/espfix_64.c 		& (ESPFIX_PAGE_SPACE - 1);