OBD_CLEANUP_SELF_EXP,/* FIXME we should eliminate the "precleanup" function and make them stages   of the "cleanup" function. */        OBD_CLEANUP_OBD,};/* get/set_info keys */#define KEY_MDS_CONN "mds_conn"#define KEY_NEXT_ID  "next_id"#define KEY_LOVDESC  "lovdesc"#define KEY_INIT_RECOV "initial_recov"#define KEY_INIT_RECOV_BACKUP "init_recov_bk"#define KEY_LOV_IDX             "lov_idx"#define KEY_LAST_ID             "last_id"struct obd_ops {        struct module *o_owner;        int (*o_iocontrol)(unsigned int cmd, struct obd_export *exp, int len,                           void *karg, void *uarg);        int (*o_get_info)(struct obd_export *, __u32 keylen, void *key,                          __u32 *vallen, void *val);        int (*o_set_info_async)(struct obd_export *, __u32 keylen, void *key,                                __u32 vallen, void *val,                                struct ptlrpc_request_set *set);        int (*o_attach)(struct obd_device *dev, obd_count len, void *data);        int (*o_detach)(struct obd_device *dev);        int (*o_setup) (struct obd_device *dev, obd_count len, void *data);        int (*o_precleanup)(struct obd_device *dev,                            enum obd_cleanup_stage cleanup_stage);        int (*o_cleanup)(struct obd_device *dev);        int (*o_process_config)(struct obd_device *dev, obd_count len,                                void *data);        int (*o_postrecov)(struct obd_device *dev);        int (*o_add_conn)(struct obd_import *imp, struct obd_uuid *uuid,                          int priority);        int (*o_del_conn)(struct obd_import *imp, struct obd_uuid *uuid);        /* connect to the target device with given connection         * data. @ocd->ocd_connect_flags is modified to reflect flags actually         * granted by the target, which are guaranteed to be a subset of flags         * asked for. If @ocd == NULL, use default parameters. */        int (*o_connect)(struct lustre_handle *conn, struct obd_device *src,                         struct obd_uuid *cluuid, struct obd_connect_data *ocd,                         void *localdata);        int (*o_reconnect)(struct obd_export *exp, struct obd_device *src,                           struct obd_uuid *cluuid,                           struct obd_connect_data *ocd);        int (*o_disconnect)(struct obd_export *exp);        int (*o_statfs)(struct obd_device *obd, struct obd_statfs *osfs,                        __u64 max_age, __u32 flags);        int (*o_statfs_async)(struct obd_device *obd, struct obd_info *oinfo,                              __u64 max_age, struct ptlrpc_request_set *set);        int (*o_packmd)(struct obd_export *exp, struct lov_mds_md **disk_tgt,                        struct lov_stripe_md *mem_src);        int (*o_unpackmd)(struct obd_export *exp,struct lov_stripe_md **mem_tgt,                          struct lov_mds_md *disk_src, int disk_len);        int (*o_checkmd)(struct obd_export *exp, struct obd_export *md_exp,                         struct lov_stripe_md *mem_tgt);        int (*o_preallocate)(struct lustre_handle *, obd_count *req,                             obd_id *ids);        int (*o_precreate)(struct obd_export *exp);        int (*o_create)(struct obd_export *exp,  struct obdo *oa,                        struct lov_stripe_md **ea, struct obd_trans_info *oti);        int (*o_destroy)(struct obd_export *exp, struct obdo *oa,                         struct lov_stripe_md *ea, struct obd_trans_info *oti,                         struct obd_export *md_exp);        int (*o_setattr)(struct obd_export *exp, struct obd_info *oinfo,                         struct obd_trans_info *oti);        int (*o_setattr_async)(struct obd_export *exp, struct obd_info *oinfo,                               struct obd_trans_info *oti,                               struct ptlrpc_request_set *rqset);        int (*o_getattr)(struct obd_export *exp, struct obd_info *oinfo);        int (*o_getattr_async)(struct obd_export *exp, struct obd_info *oinfo,                               struct ptlrpc_request_set *set);        int (*o_brw)(int rw, struct obd_export *exp, struct obd_info *oinfo,                     obd_count oa_bufs, struct brw_page *pgarr,                     struct obd_trans_info *oti);        int (*o_brw_async)(int rw, struct obd_export *exp,                           struct obd_info *oinfo, obd_count oa_bufs,                           struct brw_page *pgarr, struct obd_trans_info *oti,                           struct ptlrpc_request_set *);        int (*o_prep_async_page)(struct obd_export *exp,                                 struct lov_stripe_md *lsm,                                 struct lov_oinfo *loi,                                 cfs_page_t *page, obd_off offset,                                  struct obd_async_page_ops *ops, void *data,                                 void **res, int nocache,                                 struct lustre_handle *lockh);        int (*o_queue_async_io)(struct obd_export *exp,                                struct lov_stripe_md *lsm,                                struct lov_oinfo *loi, void *cookie,                                int cmd, obd_off off, int count,                                obd_flag brw_flags, obd_flag async_flags);        int (*o_queue_group_io)(struct obd_export *exp,                                struct lov_stripe_md *lsm,                                struct lov_oinfo *loi,                                struct obd_io_group *oig,                                void *cookie, int cmd, obd_off off, int count,                                obd_flag brw_flags, obd_flag async_flags);        int (*o_trigger_group_io)(struct obd_export *exp,                                  struct lov_stripe_md *lsm,                                  struct lov_oinfo *loi,                                  struct obd_io_group *oig);        int (*o_set_async_flags)(struct obd_export *exp,                                struct lov_stripe_md *lsm,                                struct lov_oinfo *loi, void *cookie,                                obd_flag async_flags);        int (*o_teardown_async_page)(struct obd_export *exp,                                     struct lov_stripe_md *lsm,                                     struct lov_oinfo *loi, void *cookie);        int (*o_merge_lvb)(struct obd_export *exp, struct lov_stripe_md *lsm,                           struct ost_lvb *lvb, int kms_only);        int (*o_adjust_kms)(struct obd_export *exp, struct lov_stripe_md *lsm,                            obd_off size, int shrink);        int (*o_punch)(struct obd_export *exp, struct obd_info *oinfo,                       struct obd_trans_info *oti,                       struct ptlrpc_request_set *rqset);        int (*o_sync)(struct obd_export *exp, struct obdo *oa,                      struct lov_stripe_md *ea, obd_size start, obd_size end);        int (*o_migrate)(struct lustre_handle *conn, struct lov_stripe_md *dst,                         struct lov_stripe_md *src, obd_size start,                         obd_size end, struct obd_trans_info *oti);        int (*o_copy)(struct lustre_handle *dstconn, struct lov_stripe_md *dst,                      struct lustre_handle *srconn, struct lov_stripe_md *src,                      obd_size start, obd_size end, struct obd_trans_info *);        int (*o_iterate)(struct lustre_handle *conn,                         int (*)(obd_id, obd_gr, void *),                         obd_id *startid, obd_gr group, void *data);        int (*o_preprw)(int cmd, struct obd_export *exp, struct obdo *oa,                        int objcount, struct obd_ioobj *obj,                        int niocount, struct niobuf_remote *remote,                        struct niobuf_local *local, struct obd_trans_info *oti);        int (*o_commitrw)(int cmd, struct obd_export *exp, struct obdo *oa,                          int objcount, struct obd_ioobj *obj,                          int niocount, struct niobuf_local *local,                          struct obd_trans_info *oti, int rc);        int (*o_enqueue)(struct obd_export *, struct obd_info *oinfo,                         struct ldlm_enqueue_info *einfo,                         struct ptlrpc_request_set *rqset);        int (*o_match)(struct obd_export *, struct lov_stripe_md *, __u32 type,                       ldlm_policy_data_t *, __u32 mode, int *flags, void *data,                       struct lustre_handle *lockh);        int (*o_change_cbdata)(struct obd_export *, struct lov_stripe_md *,                               ldlm_iterator_t it, void *data);        int (*o_cancel)(struct obd_export *, struct lov_stripe_md *md,                        __u32 mode, struct lustre_handle *);        int (*o_cancel_unused)(struct obd_export *, struct lov_stripe_md *,                               int flags, void *opaque);        int (*o_join_lru)(struct obd_export *, struct lov_stripe_md *,                         int join);        int (*o_init_export)(struct obd_export *exp);        int (*o_destroy_export)(struct obd_export *exp);        int (*o_extent_calc)(struct obd_export *, struct lov_stripe_md *,                             int cmd, obd_off *);        /* llog related obd_methods */        int (*o_llog_init)(struct obd_device *obd, struct obd_device *disk_obd,                           int count, struct llog_catid *logid,                            struct obd_uuid *uuid);        int (*o_llog_finish)(struct obd_device *obd, int count);        /* metadata-only methods */        int (*o_pin)(struct obd_export *, obd_id ino, __u32 gen, int type,                     struct obd_client_handle *, int flag);        int (*o_unpin)(struct obd_export *, struct obd_client_handle *, int);        int (*o_import_event)(struct obd_device *, struct obd_import *,                              enum obd_import_event);        int (*o_notify)(struct obd_device *obd, struct obd_device *watched,                        enum obd_notify_event ev, void *data);        int (*o_health_check)(struct obd_device *);        /* quota methods */        int (*o_quotacheck)(struct obd_export *, struct obd_quotactl *);        int (*o_quotactl)(struct obd_export *, struct obd_quotactl *);        int (*o_quota_adjust_qunit)(struct obd_export *exp,                                    struct quota_adjust_qunit *oqaq);        int (*o_ping)(struct obd_export *exp);        int (*o_register_page_removal_cb)(struct obd_export *exp,                                          obd_page_removal_cb_t cb,                                          obd_pin_extent_cb pin_cb);        int (*o_unregister_page_removal_cb)(struct obd_export *exp,                                            obd_page_removal_cb_t cb);        int (*o_register_lock_cancel_cb)(struct obd_export *exp,                                       obd_lock_cancel_cb cb);        int (*o_unregister_lock_cancel_cb)(struct obd_export *exp,                                         obd_lock_cancel_cb cb);                /*         * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line         * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.         * Also, add a wrapper function in include/linux/obd_class.h. */};struct lsm_operations {        void (*lsm_free)(struct lov_stripe_md *);        int (*lsm_destroy)(struct lov_stripe_md *, struct obdo *oa,                           struct obd_export *md_exp);        void (*lsm_stripe_by_index)(struct lov_stripe_md *, int *, obd_off *,                                     unsigned long *);        void (*lsm_stripe_by_offset)(struct lov_stripe_md *, int *, obd_off *,                                     unsigned long *);        obd_off (*lsm_stripe_offset_by_index)(struct lov_stripe_md *, int);        obd_off (*lsm_stripe_offset_by_offset)(struct lov_stripe_md *, obd_off);        int (*lsm_stripe_index_by_offset)(struct lov_stripe_md *, obd_off);        int (*lsm_revalidate) (struct lov_stripe_md *, struct obd_device *obd);        int (*lsm_lmm_verify) (struct lov_mds_md *lmm, int lmm_bytes,                               int *stripe_count);        int (*lsm_unpackmd) (struct lov_obd *lov, struct lov_stripe_md *lsm,                             struct lov_mds_md *lmm);};extern struct lsm_operations lsm_plain_ops;extern struct lsm_operations lsm_join_ops;static inline struct lsm_operations *lsm_op_find(int magic){        switch(magic) {        case LOV_MAGIC:               return &lsm_plain_ops;        case LOV_MAGIC_JOIN:               return &lsm_join_ops;        default:               CERROR("Cannot recognize lsm_magic %d", magic);               return NULL;        }}int lvfs_check_io_health(struct obd_device *obd, struct file *file);/* Requests for obd_extent_calc() */#define OBD_CALC_STRIPE_START   1#define OBD_CALC_STRIPE_END     2static inline void obd_transno_commit_cb(struct obd_device *obd, __u64 transno,                                         int error){        if (error) {                CERROR("%s: transno "LPD64" commit error: %d\n",                       obd->obd_name, transno, error);                return;        }        CDEBUG(D_HA, "%s: transno "LPD64" committed\n",               obd->obd_name, transno);        if (transno > obd->obd_last_committed) {                obd->obd_last_committed = transno;                ptlrpc_commit_replies (obd);        }}static inline void init_obd_quota_ops(quota_interface_t *interface,                                      struct obd_ops *obd_ops){        if (!interface)                return;        LASSERT(obd_ops);        obd_ops->o_quotacheck = QUOTA_OP(interface, check);        obd_ops->o_quotactl = QUOTA_OP(interface, ctl);        obd_ops->o_quota_adjust_qunit = QUOTA_OP(interface, adjust_qunit);}/* * Checksums */#ifdef HAVE_ADLER/* Default preferred checksum algorithm to use (if supported by the server) */#define OSC_DEFAULT_CKSUM OBD_CKSUM_ADLER/* Adler-32 is supported */#define CHECKSUM_ADLER OBD_CKSUM_ADLER#else#define OSC_DEFAULT_CKSUM OBD_CKSUM_CRC32#define CHECKSUM_ADLER 0#endif#define OBD_CKSUM_ALL (OBD_CKSUM_CRC32 | CHECKSUM_ADLER)/* Checksum algorithm names. Must be defined in the same order as the * OBD_CKSUM_* flags. */#define DECLARE_CKSUM_NAME char *cksum_name[] = {"crc32", "adler"}#endif /* __OBD_H */