PUD_SHIFT 23 arch/x86/include/asm/page_64_types.h #define PUD_PAGE_SIZE (_AC(1, UL) << PUD_SHIFT) PUD_SHIFT 634 arch/x86/include/asm/pgtable.h return (address >> PUD_SHIFT) & (PTRS_PER_PUD - 1); PUD_SHIFT 51 arch/x86/include/asm/pgtable_64_types.h #define PUD_SIZE (_AC(1, UL) << PUD_SHIFT) PUD_SHIFT 19 include/asm-generic/pgtable-nopmd.h #define PMD_SHIFT PUD_SHIFT PUD_SHIFT 17 include/asm-generic/pgtable-nopud.h #define PUD_SIZE (1UL << PUD_SHIFT)