SYS_mprotect_key 197 tools/testing/selftests/x86/protection_keys.c #ifndef SYS_mprotect_key SYS_mprotect_key 211 tools/testing/selftests/x86/protection_keys.c #ifndef SYS_mprotect_key SYS_mprotect_key 540 tools/testing/selftests/x86/protection_keys.c sret = syscall(SYS_mprotect_key, ptr, size, orig_prot, pkey); SYS_mprotect_key 1416 tools/testing/selftests/x86/protection_keys.c sret = syscall(SYS_mprotect_key, ptr, size, PROT_READ, pkey);