PAGE_DIR_OFFSET   281 arch/alpha/include/asm/pgtable.h #define PAGE_DIR_OFFSET(tsk,address) pgd_offset((tsk),(address))
PAGE_DIR_OFFSET   191 arch/m68k/include/asm/motorola_pgtable.h #define PAGE_DIR_OFFSET(tsk,address) pgd_offset((tsk),(address))