113   lru_.prev = &lru_;  in LRUCacheShard()
180   assert(e->prev != nullptr);  in LRU_Remove()
182     lru_low_pri_ = e->prev;  in LRU_Remove()
184   e->next->prev = e->prev;  in LRU_Remove()
185   e->prev->next = e->next;  in LRU_Remove()
186   e->prev = e->next = nullptr;  in LRU_Remove()
198   assert(e->prev == nullptr);  in LRU_Insert()
203     e->prev = lru_.prev;  in LRU_Insert()
204     e->prev->next = e;  in LRU_Insert()
205     e->next->prev = e;  in LRU_Insert()
213     e->prev = lru_low_pri_;  in LRU_Insert()
214     e->prev->next = e;  in LRU_Insert()
215     e->next->prev = e;  in LRU_Insert()
357   e->next = e->prev = nullptr;  in Insert()