PUD_SHIFT         132 include/asm-frv/pgtable.h #define PUD_SHIFT		26
PUD_SHIFT          15 include/asm-generic/pgtable-nopud.h #define PUD_SHIFT	PGDIR_SHIFT
PUD_SHIFT          40 include/asm-x86/pgtable_64.h #define PUD_SHIFT	30