Re: [patch] Real-Time Preemption, -VP-2.6.9-rc4-mm1-U2

[Adam Heath]

On Thu, 14 Oct 2004, Adam Heath wrote:

> On Thu, 14 Oct 2004, Adam Heath wrote:
>
> > On Fri, 15 Oct 2004, Ingo Molnar wrote:
> >
> > >
> > > i have released the -U2 PREEMPT_REALTIME patch:
> > >
> > >   http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.9-rc4-mm1-U2
> >
> > kernel/latency.c: In function `add_preempt_count':
> > kernel/latency.c:390: error: structure has no member named `preempt_trace_eip'
> > kernel/latency.c:394: error: structure has no member named `preempt_trace_parent_eip'
>
> Here's a patch:
>
> --- kernel/latency.c.orig	2004-10-14 19:36:26.000000000 -0500
> +++ kernel/latency.c	2004-10-14 19:33:30.000000000 -0500
> @@ -387,11 +387,9 @@
>  	if (val <= 10) {
>  		unsigned int idx = preempt_count() & PREEMPT_MASK;
>  		if (idx < MAX_PREEMPT_TRACE) {
> -			current->preempt_trace_eip[idx] = eip;
>  #ifdef CONFIG_LATENCY_TRACE
> +			current->preempt_trace_eip[idx] = eip;
>  			current->preempt_trace_parent_eip[idx] = parent_eip;
> -#else
> -			current->preempt_trace_parent_eip[idx] = 0;
>  #endif
>  		}
>  	}
> --

How do you set that config option?  I only see it in .c and .h files.
-
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