+#include <libcfs/linux/linux-mem.h>
+#include <lustre_osc.h>
+
+extern atomic_t osc_pool_req_count;
+extern unsigned int osc_reqpool_maxreqcount;
+extern struct ptlrpc_request_pool *osc_rq_pool;
+
+void osc_wake_cache_waiters(struct client_obd *cli);
+int osc_shrink_grant_to_target(struct client_obd *cli, __u64 target_bytes);
+void osc_schedule_grant_work(void);
+void osc_update_next_shrink(struct client_obd *cli);
+int lru_queue_work(const struct lu_env *env, void *data);
+int osc_extent_finish(const struct lu_env *env, struct osc_extent *ext,
+ int sent, int rc);
+int osc_extent_release(const struct lu_env *env, struct osc_extent *ext);
+int osc_lock_discard_pages(const struct lu_env *env, struct osc_object *osc,
+ pgoff_t start, pgoff_t end, bool discard);
+
+extern struct ptlrpc_request_set *PTLRPCD_SET;
+
+int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id,
+ __u64 *flags, union ldlm_policy_data *policy,
+ struct ost_lvb *lvb, int kms_valid,
+ osc_enqueue_upcall_f upcall,
+ void *cookie, struct ldlm_enqueue_info *einfo,
+ struct ptlrpc_request_set *rqset, int async,
+ bool speculative);
+
+int osc_match_base(struct obd_export *exp, struct ldlm_res_id *res_id,
+ enum ldlm_type type, union ldlm_policy_data *policy,
+ enum ldlm_mode mode, __u64 *flags, void *data,
+ struct lustre_handle *lockh, int unref);
+
+int osc_setattr_async(struct obd_export *exp, struct obdo *oa,
+ obd_enqueue_update_f upcall, void *cookie,
+ struct ptlrpc_request_set *rqset);
+int osc_sync_base(struct osc_object *obj, struct obdo *oa,
+ obd_enqueue_update_f upcall, void *cookie,
+ struct ptlrpc_request_set *rqset);
+int osc_ladvise_base(struct obd_export *exp, struct obdo *oa,
+ struct ladvise_hdr *ladvise_hdr,
+ obd_enqueue_update_f upcall, void *cookie,
+ struct ptlrpc_request_set *rqset);
+int osc_process_config_base(struct obd_device *obd, struct lustre_cfg *cfg);
+int osc_build_rpc(const struct lu_env *env, struct client_obd *cli,
+ struct list_head *ext_list, int cmd);
+unsigned long osc_lru_reserve(struct client_obd *cli, unsigned long npages);
+void osc_lru_unreserve(struct client_obd *cli, unsigned long npages);
+
+extern struct lu_kmem_descr osc_caches[];
+
+unsigned long osc_ldlm_weigh_ast(struct ldlm_lock *dlmlock);
+
+int osc_cleanup(struct obd_device *obd);
+int osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
+
+int osc_tunables_init(struct obd_device *obd);
+
+extern struct lu_device_type osc_device_type;
+
+static inline struct cl_io *osc_env_thread_io(const struct lu_env *env)
+{
+ struct cl_io *io = &osc_env_info(env)->oti_io;
+
+ memset(io, 0, sizeof(*io));
+ return io;
+}
+
+static inline int osc_is_object(const struct lu_object *obj)
+{
+ return obj->lo_dev->ld_type == &osc_device_type;
+}
+
+static inline struct osc_lock *osc_lock_at(const struct cl_lock *lock)
+{
+ return cl2osc_lock(cl_lock_at(lock, &osc_device_type));
+}
+
+int osc_lock_init(const struct lu_env *env, struct cl_object *obj,
+ struct cl_lock *lock, const struct cl_io *io);
+int osc_io_init(const struct lu_env *env, struct cl_object *obj,
+ struct cl_io *io);
+struct lu_object *osc_object_alloc(const struct lu_env *env,
+ const struct lu_object_header *hdr,
+ struct lu_device *dev);
+
+static inline int osc_recoverable_error(int rc)
+{
+ return (rc == -EIO || rc == -EROFS || rc == -ENOMEM ||
+ rc == -EAGAIN || rc == -EINPROGRESS);
+}
+
+static inline unsigned long rpcs_in_flight(struct client_obd *cli)
+{
+ return cli->cl_r_in_flight + cli->cl_w_in_flight;
+}
+
+static inline char *cli_name(struct client_obd *cli)
+{
+ return cli->cl_import->imp_obd->obd_name;
+}
+
+#ifndef min_t
+#define min_t(type,x,y) \
+ ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
+#endif