_REGION_ENTRY_BITS 621 arch/s390/include/asm/pgtable.h return (pgd_val(pgd) & ~_REGION_ENTRY_BITS) != 0; _REGION_ENTRY_BITS 719 arch/s390/include/asm/pgtable.h return (pud_val(pud) & ~_REGION_ENTRY_BITS) != 0; _REGION_ENTRY_BITS 730 arch/s390/include/asm/pgtable.h return (p4d_val(p4d) & ~_REGION_ENTRY_BITS) != 0;