Messages in this thread | | | Date | Wed, 12 Jan 2011 13:43:17 +0800 | Subject | Re: [patch] Re: autogroup: sched_setscheduler() fails | From | Yong Zhang <> |
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On Tue, Jan 11, 2011 at 12:42 AM, Mike Galbraith <efault@gmx.de> wrote: > Index: linux-2.6/kernel/sched_autogroup.c > =================================================================== > --- linux-2.6.orig/kernel/sched_autogroup.c > +++ linux-2.6/kernel/sched_autogroup.c > @@ -73,6 +73,15 @@ static inline struct autogroup *autogrou > ag->id = atomic_inc_return(&autogroup_seq_nr); > ag->tg = tg; > tg->autogroup = ag; > +#ifdef CONFIG_RT_GROUP_SCHED > + /* > + * HACK: autogroup RT tasks run in the root task group. > + * This fools __sched_setscheduler() into proceeding on > + * so we can move the task to the appropriate runqueue > + * upon scheduling policy change. > + */ > + tg->rt_bandwidth.rt_runtime = RUNTIME_INF; > +#endif > > return ag; > > @@ -143,6 +152,15 @@ autogroup_move_group(struct task_struct > autogroup_kref_put(prev); > } > > +static inline void > +autogroup_setscheduler(struct task_struct *p, int on_rq) > +{ > + if (p->sched_class->task_move_group) > + p->sched_class->task_move_group(p, on_rq);
This will be called even if we don't change the sched_class in which case it is not necessary.
Thanks, Yong
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