Re: [PATCH 1/1] x86: replace cpu_up hard-coded mdelay with variable

From: Ingo Molnar
Date: Wed Apr 22 2015 - 02:07:47 EST



* Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx> wrote:

> On Sat, Apr 18, 2015 at 8:53 PM, Len Brown <lenb@xxxxxxxxxx> wrote:
> > From: Len Brown <len.brown@xxxxxxxxx>
> >
>
> [...]
>
> > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> > index b7d31ca..d2a91da 100644
> > --- a/arch/x86/Kconfig
> > +++ b/arch/x86/Kconfig
> > @@ -884,6 +884,21 @@ config SCHED_MC
> > making when dealing with multi-core CPU chips at a cost of slightly
> > increased overhead in some places. If unsure say N here.
> >
> > +config X86_INIT_MDELAY
> > + int "Milliseconds to wait to de-assert INIT upon CPU startup" if SMP
> > + range 0 10
> > + default "10"
> > + ---help---
> > + This allows you to specify how long the BSP will delay
> > + between asserting INIT and de-asserting INIT when starting another CPU.
> > + This delay is paid on each cpu-online operation, including boot-time,
> > + resume from suspend, and resume from hibernate. The the value of
>
> Happened to notice a 2x "The the..." when I came across this in
> linux-next today and was reading the help out of curiousity...

Len, this commit isn't in a permanent Git tree yet, right? We want to
do this through the x86 tree, and along the suggestions I made.

Thanks,

Ingo
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