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Date:   Mon, 4 Dec 2017 10:07:57 +0100
From:   Juri Lelli <>
To:     Steven Rostedt <>
Cc:     LKML <>,
        linux-rt-users <>,
        Ingo Molnar <>,
        Peter Zijlstra <>,
        Sebastian Andrzej Siewior <>,
        Daniel Wagner <>,
        Thomas Gleixner <>
Subject: Re: [PATCH] sched/rt: Do not pull from current CPU if only one cpu
 to pull

On 04/12/17 03:09, Steven Rostedt wrote:
> On Mon, 4 Dec 2017 08:45:17 +0100
> Juri Lelli <> wrote:
> > Right. I was wondering however if for the truly UP case we shouldn't be
> > initiating/queueing callbacks (pull/push) at all?
> If !CONFIG_SMP then it's not compiled in. The issue came up when Daniel
> ran a CONFIG_SMP kernel on an arch that only supports UP.

Right, sorry. I meant num_online_cpus() == 1.



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