Re: [PATCH] rcuwait: do not enter RCU protection unless a wakeup is needed

[Paolo Bonzini]

On 20/10/21 14:01, Wanpeng Li wrote:
> Yes, in the attachment.
>
>      Wanpeng

This one does not have CONFIG_PREEMPT=y, let alone CONFIG_PREEMPT_RCU. 
It's completely impossible that this patch has an effect without those 
options.

Paolo