Re: [PATCH next-akpm] mm/memcg: add missed warning in mem_cgroup_lruvec

在 2020/11/20 下午5:30, Alex Shi 写道: > diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h > index 925b09ace986..7809020ef7bd 100644 > --- a/include/linux/memcontrol.h > +++ b/include/linux/memcontrol.h > @@ -618,6 +618,7 @@ static inline struct lruvec *mem_cgroup_lruvec(struct >

[PATCH next-akpm] mm/memcg: add missed warning in mem_cgroup_lruvec

commit "(mm/memcontrol:rewrite mem_cgroup_page_lruvec())" on mm tree use mem_cgroup_lruvec to rewrite mem_cgroup_page_lruvec, but it missed a DEBUG_VM warning as following, since we always charge a page before return from allocation. Add back this warning is helpful: VM_WARN_ON_ONCE_PAGE(!