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

[Adam Heath]

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
 		}
 	}
--

-
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