Re: Faster getcpu() and sched_getcpu()

[dean gaudet]

[attempting resend in plain-text only because thunderbird lost the
battle vs. vger]

dean gaudet wrote:
> Andi Kleen wrote:
>> On Mon, Sep 29, 2008 at 11:01:26AM -0700, Pardo wrote:
>>   
>>>> [Maybe disable frame pointers for vsyscall.c and the vdso?]
>>>>       
>>> IIRC, some vsyscall.c code needs them enabled, so Dean's earlier patch split
>>>     
>>
>> I don't think it really needs it.
>>
>>   
>>> vsyscall.c, creating a vsyscall_user.c for code which can run without them.
>>> Seem reasonable?
>>>     
>>
>> Seems unnecessarily complicated.
>>   
>
> i disagree that it's complicated to have two files, and disagree that
> it's unnecessary to have two files.
>
> userland code does not have the same limitations/conventions as kernel
> code.  the ABIs are completely different.
>
> -dean

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