Re: [PATCH v4 1/4] mm: reduce the rcu lock duration

[Miaohe Lin]

On 2022/6/18 8:23, Andrew Morton wrote:
> On Tue, 7 Jun 2022 17:19:53 +0800 Miaohe Lin <linmiaohe@xxxxxxxxxx> wrote:
> 
>>>
>>>
>>> If the checks are not made to guarantee they are all checking against
>>> the same mm, the code needs a comment to say that there is a tiny race.
>>> The comment should say we don't care about the tiny race because
>>> the worst that can happen is that a page is migrated to a different
>>> numa node.  And so we don't care.
>>>
>>>
>>
>> I tend to do this one. To make sure, is the below code change what you suggest?
> 
> Eric went quiet.
> 
> As I understand it, any changes arising from this discussion can be
> done as a followup patch.  So I'm planning on moving this 4-patch
> series into the non-rebasing mm-stable branch late next week.

I will send a followup patch when discussion is done. Thanks.

> 
> 
> .
>