linux-kernel - Re: [PATCH v5 1/3] sched: Stop nohz stats when decayed

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Message-ID: <20180215165943.GA21994@e110439-lin>
Date:   Thu, 15 Feb 2018 16:59:43 +0000
From:   Patrick Bellasi <patrick.bellasi@....com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Vincent Guittot <vincent.guittot@...aro.org>, mingo@...nel.org,
        linux-kernel@...r.kernel.org, valentin.schneider@....com,
        morten.rasmussen@...s.arm.com, brendan.jackman@....com,
        dietmar.eggemann@....com
Subject: Re: [PATCH v5 1/3] sched: Stop nohz stats when decayed

On 15-Feb 17:50, Peter Zijlstra wrote:
> On Thu, Feb 15, 2018 at 03:22:47PM +0000, Patrick Bellasi wrote:
> > > >  static struct {
> > > >  	cpumask_var_t idle_cpus_mask;
> > > >  	atomic_t nr_cpus;
> > > > +	int has_blocked;		/* Idle CPUS has blocked load */
> > 
> > Why not "bool"?
> > 
> Because then he gets me yelling that sizeof(_Bool) is undefined and the
> whole structure layout goes out the window :-)

Now I know...

> Never use bool in a composite type.

... got a note ;-)

-- 
#include <best/regards.h>

Patrick Bellasi