+#define LAP_FROM_COOKIE(c) \
+ (LASSERT(((struct lov_async_page *)(c))->lap_magic == LOV_AP_MAGIC), \
+ (struct lov_async_page *)(c))
+
+extern cfs_mem_cache_t *lov_oinfo_slab;
+
+static inline void lov_llh_addref(void *llhp)
+{
+ struct lov_lock_handles *llh = llhp;
+ atomic_inc(&llh->llh_refcount);
+ CDEBUG(D_INFO, "GETting llh %p : new refcount %d\n", llh,
+ atomic_read(&llh->llh_refcount));
+}
+
+static inline struct lov_lock_handles *lov_llh_new(struct lov_stripe_md *lsm)
+{
+ struct lov_lock_handles *llh;
+
+ OBD_ALLOC(llh, sizeof *llh +
+ sizeof(*llh->llh_handles) * lsm->lsm_stripe_count);
+ if (llh == NULL)
+ return NULL;
+ atomic_set(&llh->llh_refcount, 2);
+ llh->llh_stripe_count = lsm->lsm_stripe_count;
+ CFS_INIT_LIST_HEAD(&llh->llh_handle.h_link);
+ class_handle_hash(&llh->llh_handle, lov_llh_addref);
+ return llh;
+}
+
+static inline struct lov_lock_handles *
+lov_handle2llh(struct lustre_handle *handle)
+{
+ LASSERT(handle != NULL);
+ return(class_handle2object(handle->cookie));
+}
+
+static inline void lov_llh_put(struct lov_lock_handles *llh)
+{
+ CDEBUG(D_INFO, "PUTting llh %p : new refcount %d\n", llh,
+ atomic_read(&llh->llh_refcount) - 1);
+ LASSERT(atomic_read(&llh->llh_refcount) > 0 &&
+ atomic_read(&llh->llh_refcount) < 0x5a5a);
+ if (atomic_dec_and_test(&llh->llh_refcount)) {
+ class_handle_unhash(&llh->llh_handle);
+ /* The structure may be held by other threads because RCU.
+ * -jxiong */
+ if (atomic_read(&llh->llh_refcount))
+ return;
+
+ OBD_FREE_RCU(llh, sizeof *llh +
+ sizeof(*llh->llh_handles) * llh->llh_stripe_count,
+ &llh->llh_handle);
+ }
+}
+
+#define lov_uuid2str(lv, index) \
+ (char *)((lv)->lov_tgts[index]->ltd_uuid.uuid)
+
+/* lov_merge.c */
+void lov_merge_attrs(struct obdo *tgt, struct obdo *src, obd_flag valid,
+ struct lov_stripe_md *lsm, int stripeno, int *set);
+int lov_merge_lvb(struct obd_export *exp, struct lov_stripe_md *lsm,
+ struct ost_lvb *lvb, int kms_only);
+int lov_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm,
+ obd_off size, int shrink);
+
+/* lov_offset.c */
+obd_size lov_stripe_size(struct lov_stripe_md *lsm, obd_size ost_size,
+ int stripeno);
+int lov_stripe_offset(struct lov_stripe_md *lsm, obd_off lov_off,
+ int stripeno, obd_off *obd_off);
+obd_off lov_size_to_stripe(struct lov_stripe_md *lsm, obd_off file_size,
+ int stripeno);
+int lov_stripe_intersects(struct lov_stripe_md *lsm, int stripeno,
+ obd_off start, obd_off end,
+ obd_off *obd_start, obd_off *obd_end);
+int lov_stripe_number(struct lov_stripe_md *lsm, obd_off lov_off);
+
+/* lov_qos.c */
+#define LOV_USES_ASSIGNED_STRIPE 0
+#define LOV_USES_DEFAULT_STRIPE 1
+int qos_add_tgt(struct obd_device *obd, __u32 index);
+int qos_del_tgt(struct obd_device *obd, __u32 index);
+void qos_shrink_lsm(struct lov_request_set *set);
+int qos_prep_create(struct obd_export *exp, struct lov_request_set *set);
+void qos_update(struct lov_obd *lov);
+int qos_remedy_create(struct lov_request_set *set, struct lov_request *req);
+
+/* lov_request.c */
+void lov_set_add_req(struct lov_request *req, struct lov_request_set *set);
+void lov_update_set(struct lov_request_set *set,
+ struct lov_request *req, int rc);
+int lov_update_common_set(struct lov_request_set *set,
+ struct lov_request *req, int rc);
+int lov_prep_create_set(struct obd_export *exp, struct obd_info *oifo,
+ struct lov_stripe_md **ea, struct obdo *src_oa,
+ struct obd_trans_info *oti,
+ struct lov_request_set **reqset);
+int lov_update_create_set(struct lov_request_set *set,
+ struct lov_request *req, int rc);
+int lov_fini_create_set(struct lov_request_set *set, struct lov_stripe_md **ea);
+int lov_prep_brw_set(struct obd_export *exp, struct obd_info *oinfo,
+ obd_count oa_bufs, struct brw_page *pga,
+ struct obd_trans_info *oti,
+ struct lov_request_set **reqset);
+int lov_fini_brw_set(struct lov_request_set *set);
+int lov_prep_getattr_set(struct obd_export *exp, struct obd_info *oinfo,
+ struct lov_request_set **reqset);
+int lov_fini_getattr_set(struct lov_request_set *set);
+int lov_prep_destroy_set(struct obd_export *exp, struct obd_info *oinfo,
+ struct obdo *src_oa, struct lov_stripe_md *lsm,
+ struct obd_trans_info *oti,
+ struct lov_request_set **reqset);
+int lov_update_destroy_set(struct lov_request_set *set,
+ struct lov_request *req, int rc);
+int lov_fini_destroy_set(struct lov_request_set *set);
+int lov_prep_setattr_set(struct obd_export *exp, struct obd_info *oinfo,
+ struct obd_trans_info *oti,
+ struct lov_request_set **reqset);
+int lov_update_setattr_set(struct lov_request_set *set,
+ struct lov_request *req, int rc);
+int lov_fini_setattr_set(struct lov_request_set *set);
+int lov_prep_punch_set(struct obd_export *exp, struct obd_info *oinfo,
+ struct obd_trans_info *oti,
+ struct lov_request_set **reqset);
+int lov_fini_punch_set(struct lov_request_set *set);
+int lov_prep_sync_set(struct obd_export *exp, struct obd_info *obd_info,
+ struct obdo *src_oa,
+ struct lov_stripe_md *lsm, obd_off start,
+ obd_off end, struct lov_request_set **reqset);
+int lov_fini_sync_set(struct lov_request_set *set);
+int lov_prep_enqueue_set(struct obd_export *exp, struct obd_info *oinfo,
+ struct obd_enqueue_info *einfo,
+ struct lov_request_set **reqset);
+int lov_fini_enqueue_set(struct lov_request_set *set, __u32 mode, int rc);
+int lov_prep_match_set(struct obd_export *exp, struct obd_info *oinfo,
+ struct lov_stripe_md *lsm,
+ ldlm_policy_data_t *policy, __u32 mode,
+ struct lustre_handle *lockh,
+ struct lov_request_set **reqset);
+int lov_update_match_set(struct lov_request_set *set, struct lov_request *req,
+ int rc);
+int lov_fini_match_set(struct lov_request_set *set, __u32 mode, int flags);
+int lov_prep_cancel_set(struct obd_export *exp, struct obd_info *oinfo,
+ struct lov_stripe_md *lsm,
+ __u32 mode, struct lustre_handle *lockh,
+ struct lov_request_set **reqset);
+int lov_fini_cancel_set(struct lov_request_set *set);
+int lov_prep_statfs_set(struct obd_device *obd, struct obd_info *oinfo,
+ struct lov_request_set **reqset);
+void lov_update_statfs(struct obd_device *obd, struct obd_statfs *osfs,
+ struct obd_statfs *lov_sfs, int success);
+int lov_fini_statfs(struct obd_device *obd, struct obd_statfs *osfs,
+ int success);
+int lov_fini_statfs_set(struct lov_request_set *set);
+