linux-kernel - Re: [PATCH v3] sched/deadline: runtime overrun signal

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Message-ID: <20171219193232.gxkwvtz7f4gj7ffz@hirez.programming.kicks-ass.net>
Date:   Tue, 19 Dec 2017 20:32:32 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Claudio Scordino <claudio@...dence.eu.com>,
        Juri Lelli <juri.lelli@...il.com>,
        Luca Abeni <luca.abeni@...tannapisa.it>,
        Tommaso Cucinotta <tommaso.cucinotta@...up.it>,
        Ingo Molnar <mingo@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-rt-users <linux-rt-users@...r.kernel.org>
Subject: Re: [PATCH v3] sched/deadline: runtime overrun signal

On Tue, Dec 12, 2017 at 12:50:40PM +0100, Ingo Molnar wrote:
> 
> * Claudio Scordino <claudio@...dence.eu.com> wrote:
> 
> > From: Juri Lelli <juri.lelli@...il.com>
> 
> > -		~(SCHED_FLAG_RESET_ON_FORK | SCHED_FLAG_RECLAIM))
> > +		~(SCHED_FLAG_RESET_ON_FORK | SCHED_FLAG_RECLAIM |
> > +			SCHED_FLAG_DL_OVERRUN))

Introduced SCHED_FLAG_ALL for this

> 
> > +		if (dl_runtime_exceeded(dl_se) &&
> > +				(dl_se->flags & SCHED_FLAG_DL_OVERRUN))

realigned this one

> 
> > +		pr_info("runtime overrun: %s[%d]\n",
> > +				tsk->comm, task_pid_nr(tsk));

And simply took this out, you asked for it, no reason to tell world
about getting one.