Re: [PATCH RFC] softirq: fix ksoftirq starved

Ingo Molnar
2009-06-17T14:54:14Z

* Lai Jiangshan <laijs@cn.fujitsu.com> wrote:

> --- a/kernel/sched.c
> +++ b/kernel/sched.c
> @@ -5307,6 +5307,7 @@ need_resched:
> release_kernel_lock(prev);
> need_resched_nonpreemptible:
>
> + schedule_softirq_check();
> schedule_debug(prev);

hm, this slows down the scheduler fast-path ...

Ingo