Re: [PATCH 1/1] io_uring: fix infinite wait in khread_park() on io_finish_async()

[Roman Penyaev <rpenyaev@suse.de>]

On 2019-05-14 11:17, Roman Penyaev wrote:
> I see.  Do you think it makes sense to fix this is kthread?  With 
> something
> as the following:
> 
> diff --git a/kernel/kthread.c b/kernel/kthread.c
> index be4e8795561a..191f8be5c9e0 100644
> --- a/kernel/kthread.c
> +++ b/kernel/kthread.c
> @@ -472,6 +472,10 @@ void kthread_unpark(struct task_struct *k)
>  {
>         struct kthread *kthread = to_kthread(k);
> 
> +       if (!__kthread_should_park(k))
> +               /* Nop if thread was never parked */
> +               break;

return of course, not break.

--
Roman