Re: [PATCH 03/14] lru/memcg: using per lruvec lock in un/lock_page_lru

[Alex Shi]

在 2019/8/26 下午4:30, Konstantin Khlebnikov 写道:
>>
>>   
> 
> What protects lruvec from freeing at this point?
> After reading resolving lruvec page could be moved and cgroup deleted.
> 
> In this old patches I've used RCU for that: 
> https://lkml.org/lkml/2012/2/20/276
> Pointer to lruvec should be resolved under disabled irq.
> Not sure this works these days.

Thanks for reminder! I will reconsider this point and come up with changes.

Thanks
Alex