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SubjectRe: LatencyTOP infrastructure patch
Hi

> +static void __sched
> +account_global_scheduler_latency(struct task_struct *tsk, int usecs)
> +{
> + int i;
> + int firstnonnull = MAXLR + 1;
> +
> + if (!tsk->latency_reason.reason)
> + return;
> +
> + /* skip kernel threads for now */
> + if (!tsk->mm)
> + return;

Why do you ignore kernel thread?

may be, some network filesystem use kernel thread for local I/O.
What do you think it?


- kosaki



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