Re: [Patch]: latency histogram patch cleanup

[Daniel Walker <dwalker@mvista.com>]

Comments below ...


On Thu, 2005-08-11 at 09:43 +0000, yangyi wrote:
> +#ifndef CONFIG_CRITICAL_LATENCY_HIST
>  	if (!report_latency(delta))
>  		goto out;
> +#endif

Why ? This combined with the hunk below is just preempt_threshold ..
Just use preempt_threshold instead of all the ifdefs everywhere .
 
>  	____trace(cpu, TRACE_FN, tr, CALLER_ADDR0, parent_eip, 0, 0, 0);
>  	/*
> @@ -1393,11 +1382,13 @@ check_critical_timing(int cpu, struct cp
>  	if (tr->critical_sequence != max_sequence || down_trylock(&max_mutex))
>  		goto out;
>  
> +#ifndef CONFIG_CRITICAL_LATENCY_HIST
>  	if (!preempt_thresh && preempt_max_latency > delta) {
>  		printk("bug: updating %016Lx > %016Lx?\n",
>  			preempt_max_latency, delta);
>  		printk("  [%016Lx %016Lx %016Lx]\n", T0, T1, T2);
>  	}
> +#endif
>  
>  	latency = cycles_to_usecs(delta);
>  


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