> On Sep 11, 2023, at 17:44, Qi Zheng <zhengqi.arch@xxxxxxxxxxxxx> wrote: > > In preparation for implementing lockless slab shrink, use new APIs to > dynamically allocate the md-bcache shrinker, so that it can be freed > asynchronously via RCU. Then it doesn't need to wait for RCU read-side > critical section when releasing the struct cache_set. > > Signed-off-by: Qi Zheng <zhengqi.arch@xxxxxxxxxxxxx> Acked-by: Muchun Song <songmuchun@xxxxxxxxxxxxx> Thanks.