Re: [PATCH v2 4/9] cgroup: rstat: add WARN_ON_ONCE() if flushing outside task context

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On Fri, Mar 31, 2023 at 4:02 AM Michal Hocko <mhocko@xxxxxxxx> wrote:
>
> On Thu 30-03-23 01:53:38, Yosry Ahmed wrote:
> [...]
> > Maybe we can add a primitive like might_sleep() for this, just food for thought.
>
> I do not think it is the correct to abuse might_sleep if the function
> itself doesn't sleep. If it does might_sleep is already involved.

Oh, sorry if I wasn't clear, I did not mean to reuse might_sleep() --
I meant introducing a new similar debug primitive that shouts if irqs
are disabled.

> --
> Michal Hocko
> SUSE Labs





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