On Mon, 19 Nov 2018 11:09:50 -0800 Florian Fainelli <[email protected]> wrote:
> > I did the change against v4.2.8 below. > > Thanks Steven! Here is the local 4.9 backport: Yours even updates the comment. Reviewed-by: Steven Rostedt (VMware) <[email protected]> -- Steve > > diff --git a/kernel/sched/core.c b/kernel/sched/core.c > index 917be221438b..6b3fff6a6437 100644 > --- a/kernel/sched/core.c > +++ b/kernel/sched/core.c > @@ -4087,8 +4087,8 @@ static int __sched_setscheduler(struct task_struct *p, > int queue_flags = DEQUEUE_SAVE | DEQUEUE_MOVE; > struct rq *rq; > > - /* may grab non-irq protected spin_locks */ > - BUG_ON(in_interrupt()); > + /* The pi code expects interrupts enabled */ > + BUG_ON(pi && in_interrupt()); > recheck: > /* double check policy once rq lock held */
