extern atomic_t fscache_n_relinquishes;
extern atomic_t fscache_n_relinquishes_null;
extern atomic_t fscache_n_relinquishes_waitcrt;
+extern atomic_t fscache_n_relinquishes_retire;
extern atomic_t fscache_n_cookie_index;
extern atomic_t fscache_n_cookie_data;