old_iamr 234 arch/powerpc/mm/book3s64/pkeys.c u64 old_iamr = read_iamr() & ~((u64)(0x1ul) << pkeyshift(pkey)); old_iamr 236 arch/powerpc/mm/book3s64/pkeys.c write_iamr(old_iamr | new_iamr_bits);