Re: [PATCH tip/core/rcu 1/5] rcu: Fix soft lockup for rcu_nocb_kthread

[Nikolay Borisov]

[SNIP]
> 
> Signed-off-by: Ding Tianhong <dingtianhong@xxxxxxxxxx>
> [ paulmck: Substituted cond_resched_rcu_qs for cond_resched. ]

This contradicts...

> Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
> ---
>  kernel/rcu/tree_plugin.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
> index 0082fce402a0..85c5a883c6e3 100644
> --- a/kernel/rcu/tree_plugin.h
> +++ b/kernel/rcu/tree_plugin.h
> @@ -2173,6 +2173,7 @@ static int rcu_nocb_kthread(void *arg)
>  				cl++;
>  			c++;
>  			local_bh_enable();
> +			cond_resched_rcu_qs();

with what's here?
>  			list = next;
>  		}
>  		trace_rcu_batch_end(rdp->rsp->name, c, !!list, 0, 0, 1);
>