linux-kernel - Re: [PATCH] sched: fair: fix missed CONFIG

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Date:   Thu, 7 Mar 2019 18:41:30 +0800
From:   Yafang Shao <laoar.shao@...il.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     mingo@...hat.com, LKML <linux-kernel@...r.kernel.org>,
        shaoyafang@...iglobal.com
Subject: Re: [PATCH] sched: fair: fix missed CONFIG_SCHEDSTATS

On Thu, Mar 7, 2019 at 5:55 PM Peter Zijlstra <peterz@...radead.org> wrote:
>
> On Thu, Mar 07, 2019 at 03:49:58PM +0800, Yafang Shao wrote:
> > What about your opinon ?
> >
> >
> > diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
> > index 9a4bdfa..a0291f2 100644
> > --- a/include/trace/events/sched.h
> > +++ b/include/trace/events/sched.h
> > @@ -336,6 +336,7 @@ static inline long __trace_sched_switch_state(bool
> > preempt, struct task_struct *
> >                   __entry->pid, __entry->old_pid)
> >  );
> >
> > +#ifdef CONFIG_SCHEDSTATS
> >  /*
> >   * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
> >   *     adding sched_stat support to SCHED_FIFO/RR would be welcome.
> > @@ -394,6 +395,14 @@ static inline long
> > __trace_sched_switch_state(bool preempt, struct task_struct *
> >  DEFINE_EVENT(sched_stat_template, sched_stat_blocked,
> >              TP_PROTO(struct task_struct *tsk, u64 delay),
> >              TP_ARGS(tsk, delay));
> > +#else
> > +
> > +#define trace_sched_stat_wait(...) do {} while (0)
> > +#define trace_sched_stat_sleep(...) do {} while (0)
> > +#define trace_sched_stat_iowait(...) do {} while (0)
> > +#define trace_sched_stat_blocked(...) do {} while (0)
>
> Make those inline functions that take proper arguments.
>

Sure.
Will change it.

Thanks
Yafang