X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fosc%2Fosc_internal.h;h=b7a51438b555cab681de85b2bbef529241e2efa5;hp=d6c979bb8866a4dc6b90990cf5ebe68e4f8eaa2e;hb=fbf5870b9848929d352460f1f005b79c0b5ccc5a;hpb=c83c2bee2dfa881007fa697ed912dd64574a0c3e diff --git a/lustre/osc/osc_internal.h b/lustre/osc/osc_internal.h index d6c979b..b7a5143 100644 --- a/lustre/osc/osc_internal.h +++ b/lustre/osc/osc_internal.h @@ -39,6 +39,24 @@ #define OAP_MAGIC 8675309 +struct lu_env; + +enum async_flags { + ASYNC_READY = 0x1, /* ap_make_ready will not be called before this + page is added to an rpc */ + ASYNC_URGENT = 0x2, /* page must be put into an RPC before return */ + ASYNC_COUNT_STABLE = 0x4, /* ap_refresh_count will not be called + to give the caller a chance to update + or cancel the size of the io */ +}; + +struct obd_async_page_ops { + int (*ap_make_ready)(const struct lu_env *env, void *data, int cmd); + int (*ap_refresh_count)(const struct lu_env *env, void *data, int cmd); + int (*ap_completion)(const struct lu_env *env, + void *data, int cmd, struct obdo *oa, int rc); +}; + struct osc_async_page { int oap_magic; unsigned short oap_cmd; @@ -54,13 +72,11 @@ struct osc_async_page { struct brw_page oap_brw_page; - struct oig_callback_context oap_occ; - struct obd_io_group *oap_oig; struct ptlrpc_request *oap_request; struct client_obd *oap_cli; struct lov_oinfo *oap_loi; - struct obd_async_page_ops *oap_caller_ops; + const struct obd_async_page_ops *oap_caller_ops; void *oap_caller_data; struct list_head oap_page_list; struct ldlm_lock *oap_ldlm_lock; @@ -93,6 +109,64 @@ int osc_real_create(struct obd_export *exp, struct obdo *oa, void oscc_init(struct obd_device *obd); void osc_wake_cache_waiters(struct client_obd *cli); +/* + * cl integration. + */ +#include + +extern struct ptlrpc_request_set *PTLRPCD_SET; + +int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, + int *flags, ldlm_policy_data_t *policy, + struct ost_lvb *lvb, int kms_valid, + obd_enqueue_update_f upcall, + void *cookie, struct ldlm_enqueue_info *einfo, + struct lustre_handle *lockh, + struct ptlrpc_request_set *rqset, int async); +int osc_cancel_base(struct lustre_handle *lockh, __u32 mode); + +int osc_match_base(struct obd_export *exp, struct ldlm_res_id *res_id, + __u32 type, ldlm_policy_data_t *policy, __u32 mode, + int *flags, void *data, struct lustre_handle *lockh, + int unref); + +int osc_punch_base(struct obd_export *exp, struct obdo *oa, + struct obd_capa *capa, + obd_enqueue_update_f upcall, void *cookie, + struct ptlrpc_request_set *rqset); + +int osc_prep_async_page(struct obd_export *exp, struct lov_stripe_md *lsm, + struct lov_oinfo *loi, cfs_page_t *page, + obd_off offset, const struct obd_async_page_ops *ops, + void *data, void **res, int nocache, + struct lustre_handle *lockh); +void osc_oap_to_pending(struct osc_async_page *oap); +int osc_oap_interrupted(const struct lu_env *env, struct osc_async_page *oap); +void loi_list_maint(struct client_obd *cli, struct lov_oinfo *loi); +void osc_check_rpcs(const struct lu_env *env, struct client_obd *cli); + +int osc_queue_async_io(const struct lu_env *env, + 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, enum async_flags async_flags); +int osc_teardown_async_page(struct obd_export *exp, + struct lov_stripe_md *lsm, + struct lov_oinfo *loi, void *cookie); +int osc_process_config_base(struct obd_device *obd, struct lustre_cfg *cfg); +int osc_set_async_flags_base(struct client_obd *cli, + struct lov_oinfo *loi, struct osc_async_page *oap, + obd_flag async_flags); +int osc_enter_cache_try(const struct lu_env *env, + struct client_obd *cli, struct lov_oinfo *loi, + struct osc_async_page *oap, int transient); + +struct cl_page *osc_oap2cl_page(struct osc_async_page *oap); +extern spinlock_t osc_ast_guard; + +int osc_cleanup(struct obd_device *obd); +int osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg); + #ifdef LPROCFS int lproc_osc_attach_seqstat(struct obd_device *dev); void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars); @@ -104,6 +178,8 @@ static inline void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars) } #endif +extern struct lu_device_type osc_device_type; + static inline int osc_recoverable_error(int rc) { return (rc == -EIO || rc == -EROFS || rc == -ENOMEM || rc == -EAGAIN); @@ -112,8 +188,8 @@ static inline int osc_recoverable_error(int rc) /* return 1 if osc should be resend request */ static inline int osc_should_resend(int resend, struct client_obd *cli) { - return atomic_read(&cli->cl_resends) ? - atomic_read(&cli->cl_resends) > resend : 1; + return atomic_read(&cli->cl_resends) ? + atomic_read(&cli->cl_resends) > resend : 1; } #ifndef min_t @@ -121,4 +197,26 @@ static inline int osc_should_resend(int resend, struct client_obd *cli) ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; }) #endif +struct osc_device { + struct cl_device od_cl; + struct obd_export *od_exp; + + /* Write stats is actually protected by client_obd's lock. */ + struct osc_stats { + uint64_t os_lockless_writes; /* by bytes */ + uint64_t os_lockless_reads; /* by bytes */ + uint64_t os_lockless_truncates; /* by times */ + } od_stats; + + /* configuration item(s) */ + int od_contention_time; + int od_lockless_truncate; +}; + +static inline struct osc_device *obd2osc_dev(const struct obd_device *d) +{ + return container_of0(d->obd_lu_dev, struct osc_device, od_cl.cd_lu_dev); +} + + #endif /* OSC_INTERNAL_H */