| Subject | Re: [PATCH v6 44/45] mm: shrinker: hold write lock to reparent shrinker nr_deferred | From | Muchun Song <> | Date | Mon, 18 Sep 2023 15:17:38 +0800 |
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> On Sep 11, 2023, at 17:44, Qi Zheng <zhengqi.arch@bytedance.com> 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 <zhengqi.arch@bytedance.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Thanks.
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