Re: [PATCH v16 08/10] x86/arch_prctl: Add ARCH_[GET|SET]_CPUID

[Kyle Huey]

On Mon, Mar 20, 2017 at 8:00 AM, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
> On Mon, 20 Mar 2017, Kyle Huey wrote:
>> --- a/arch/x86/include/uapi/asm/prctl.h
>> +++ b/arch/x86/include/uapi/asm/prctl.h
>> @@ -6,8 +6,17 @@
>>  #define ARCH_GET_FS 0x1003
>>  #define ARCH_GET_GS 0x1004
>>
>> +#define ARCH_GET_CPUID 0x1005
>> +#define ARCH_SET_CPUID 0x1006
>> +
>>  #define ARCH_MAP_VDSO_X32    0x2001
>>  #define ARCH_MAP_VDSO_32     0x2002
>>  #define ARCH_MAP_VDSO_64     0x2003
>>
>> +#ifdef CONFIG_CHECKPOINT_RESTORE
>> +# define ARCH_MAP_VDSO_X32   0x2001
>> +# define ARCH_MAP_VDSO_32    0x2002
>> +# define ARCH_MAP_VDSO_64    0x2003
>> +#endif
>
> That hunk is bogus in two aspects:
>      - It's just a copy of the above wrapped in a ifdef
>
>      - The ifdef is broken, because the UAPI headers do not know about
>        that.
>
> I dropped it.

Looks like that was introduced when I rebased over a01aa6c9f40f for
v14 and I didn't catch it manually.  Thanks for finding and fixing
that.

- Kyle