Re: [PATCHv8 02/34] lib/vdso: make do_hres and do_coarse as __always_inline

Andrei Vagin
2020-01-13T05:27:31Z

On Fri, Jan 10, 2020 at 4:02 AM Thomas Gleixner <tglx@linutronix.de> wrote:
>
> Vincenzo Frascino <vincenzo.frascino@arm.com> writes:
> > On 1/10/20 11:42 AM, Thomas Gleixner wrote:
> >>>> +» » /*·goto·allows·to·avoid·extra·inlining·of·do_hres.·*/
> >>>> +» » goto·out_hres;
> >>>
> >>> What is the performance impact of "goto out_hres"?
> >>
> >> On x86 it's invisible at least in my limited testing.
> >
> > On arm64 as well based on mine as well. Shall we keep the code more readable
> > here (without goto)?
>
> The delta patch below makes it readable again and also avoids the double
> inlining. Quick testing shows no difference.

My tests show no difference too and the code looks more readable. Thanks!

>
> Thanks,
>
> tglx