> On Sep 11, 2023, at 17:44, Qi Zheng <[email protected]> wrote:
>
> For now, reparent_shrinker_deferred() is the only holder of read lock of
> shrinker_rwsem. And it already holds the global cgroup_mutex, so it will
> not be called in parallel.
>
> Therefore, in order to convert shrinker_rwsem to shrinker_mutex later,
> here we change to hold the write lock of shrinker_rwsem to reparent.
>
> Signed-off-by: Qi Zheng <[email protected]>
Reviewed-by: Muchun Song <[email protected]>
Thanks.