linux-kernel - Re: [GIT PULL] scheduler changes for v2.6.38

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Message-ID: <20110106235332.GA15940@elte.hu>
Date:	Fri, 7 Jan 2011 00:53:32 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Mike Galbraith <efault@....de>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [GIT PULL] scheduler changes for v2.6.38


* Linus Torvalds <torvalds@...ux-foundation.org> wrote:

> Ingo, can we please not do things like this:
> 
> > diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
> > index 155a415..562c56e 100644
> > --- a/kernel/trace/trace_selftest.c
> > +++ b/kernel/trace/trace_selftest.c
> > @@ -558,7 +558,7 @@ trace_selftest_startup_nop(struct tracer *trace, struct trace_array *tr)
> >  static int trace_wakeup_test_thread(void *data)
> >  {
> >        /* Make this a RT thread, doesn't need to be too high */
> > -       struct sched_param param = { .sched_priority = 5 };
> > +       static struct sched_param param = { .sched_priority = 5 };
> >        struct completion *x = data;
> >
> >        sched_setscheduler(current, SCHED_FIFO, &param);
> > diff --git a/kernel/watchdog.c b/kernel/watchdog.c
> > index 5b08215..c812c49 100644
> > --- a/kernel/watchdog.c
> > +++ b/kernel/watchdog.c
> > @@ -307,7 +307,7 @@ static enum hrtimer_restart watchdog_timer_fn(struct hrtimer *hrtimer)
> >  */
> >  static int watchdog(void *unused)
> >  {
> > -       struct sched_param param = { .sched_priority = MAX_RT_PRIO-1 };
> > +       static struct sched_param param = { .sched_priority = MAX_RT_PRIO-1 };
> >        struct hrtimer *hrtimer = &__raw_get_cpu_var(watchdog_hrtimer);
> >
> >        sched_setscheduler(current, SCHED_FIFO, &param);
> 
> It's just nasty and horrible.

Agreed, and i keep flaming people every time i notice it. Alas here i didnt notice 
it and it slipped through. Will fix it.

Thanks,

	Ingo
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