unsigned long osc_lru_reserve(struct client_obd *cli, unsigned long npages);
void osc_lru_unreserve(struct client_obd *cli, unsigned long npages);
-extern spinlock_t osc_ast_guard;
extern struct lu_kmem_descr osc_caches[];
-extern struct lock_class_key osc_ast_guard_class;
unsigned long osc_ldlm_weigh_ast(struct ldlm_lock *dlmlock);