X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Finclude%2Flustre_export.h;h=eb25365315a018906b24136702b42bb363eefdd3;hp=387bf9e20ce7741a22ae1c283516d2fc0284d2e5;hb=45c495867c903379ec9e9acf01d3d49caffa36e4;hpb=6869932b552ac705f411de3362f01bd50c1f6f7d diff --git a/lustre/include/lustre_export.h b/lustre/include/lustre_export.h index 387bf9e..eb25365 100644 --- a/lustre/include/lustre_export.h +++ b/lustre/include/lustre_export.h @@ -37,33 +37,49 @@ #ifndef __EXPORT_H #define __EXPORT_H +/** \defgroup export export + * + * @{ + */ + +#include #include #include -#include -/* Data stored per client in the last_rcvd file. In le32 order. */ struct mds_client_data; struct mdt_client_data; struct mds_idmap_table; struct mdt_idmap_table; +struct lu_export_data { + /** Protects led_lcd below */ + cfs_semaphore_t led_lcd_lock; + /** Per-client data for each export */ + struct lsd_client_data *led_lcd; + /** Offset of record in last_rcvd file */ + loff_t led_lr_off; + /** Client index in last_rcvd file */ + int led_lr_idx; +}; + struct mdt_export_data { - struct list_head med_open_head; - spinlock_t med_open_lock; /* lock med_open_head, mfd_list*/ - struct semaphore med_lcd_lock; - struct lsd_client_data *med_lcd; + struct lu_export_data med_led; + cfs_list_t med_open_head; + cfs_spinlock_t med_open_lock; /* lock med_open_head, mfd_list*/ __u64 med_ibits_known; - loff_t med_lr_off; - int med_lr_idx; - unsigned int med_rmtclient:1; /* remote client? */ - struct semaphore med_idmap_sem; + cfs_semaphore_t med_idmap_sem; struct lustre_idmap_table *med_idmap; }; +#define med_lcd_lock med_led.led_lcd_lock +#define med_lcd med_led.led_lcd +#define med_lr_off med_led.led_lr_off +#define med_lr_idx med_led.led_lr_idx + struct osc_creator { - spinlock_t oscc_lock; - struct list_head oscc_list; - struct obd_device *oscc_obd; + cfs_spinlock_t oscc_lock; + cfs_list_t oscc_wait_create_list; + struct obd_device *oscc_obd; obd_id oscc_last_id;//last available pre-created object obd_id oscc_next_id;// what object id to give out next int oscc_grow_count; @@ -76,76 +92,117 @@ struct osc_creator { cfs_waitq_t oscc_waitq; /* creating procs wait on this */ }; -struct ldlm_export_data { - struct list_head led_held_locks; /* protected by led_lock */ - spinlock_t led_lock; -}; - struct ec_export_data { /* echo client */ - struct list_head eced_locks; + cfs_list_t eced_locks; }; /* In-memory access to client data from OST struct */ struct filter_export_data { - spinlock_t fed_lock; /* protects fed_open_head */ - struct lsd_client_data *fed_lcd; - loff_t fed_lr_off; - int fed_lr_idx; + struct lu_export_data fed_led; + cfs_spinlock_t fed_lock; /**< protects fed_mod_list */ long fed_dirty; /* in bytes */ long fed_grant; /* in bytes */ - struct list_head fed_mod_list; /* files being modified */ + cfs_list_t fed_mod_list; /* files being modified */ int fed_mod_count;/* items in fed_writing list */ long fed_pending; /* bytes just being written */ __u32 fed_group; - struct brw_stats fed_brw_stats; }; +#define fed_lcd_lock fed_led.led_lcd_lock +#define fed_lcd fed_led.led_lcd +#define fed_lr_off fed_led.led_lr_off +#define fed_lr_idx fed_led.led_lr_idx + typedef struct nid_stat { lnet_nid_t nid; - struct hlist_node nid_hash; - struct list_head nid_list; + cfs_hlist_node_t nid_hash; + cfs_list_t nid_list; struct obd_device *nid_obd; struct proc_dir_entry *nid_proc; struct lprocfs_stats *nid_stats; + struct lprocfs_stats *nid_ldlm_stats; struct brw_stats *nid_brw_stats; - int nid_exp_ref_count; + cfs_atomic_t nid_exp_ref_count; /* for obd_nid_stats_hash + exp_nid_stats */ }nid_stat_t; +#define nidstat_getref(nidstat) \ +do { \ + cfs_atomic_inc(&(nidstat)->nid_exp_ref_count); \ +} while(0) + +#define nidstat_putref(nidstat) \ +do { \ + cfs_atomic_dec(&(nidstat)->nid_exp_ref_count); \ + LASSERTF(cfs_atomic_read(&(nidstat)->nid_exp_ref_count) >= 0, \ + "stat %p nid_exp_ref_count < 0\n", nidstat); \ +} while(0) + +enum obd_option { + OBD_OPT_FORCE = 0x0001, + OBD_OPT_FAILOVER = 0x0002, + OBD_OPT_ABORT_RECOV = 0x0004, +}; + struct obd_export { struct portals_handle exp_handle; - atomic_t exp_refcount; - atomic_t exp_rpc_count; + cfs_atomic_t exp_refcount; + /** + * Set of counters below is to track where export references are + * kept. The exp_rpc_count is used for reconnect handling also, + * the cb_count and locks_count are for debug purposes only for now. + * The sum of them should be less than exp_refcount by 3 + */ + cfs_atomic_t exp_rpc_count; /* RPC references */ + cfs_atomic_t exp_cb_count; /* Commit callback references */ + cfs_atomic_t exp_locks_count; /** Lock references */ +#if LUSTRE_TRACKS_LOCK_EXP_REFS + cfs_list_t exp_locks_list; + cfs_spinlock_t exp_locks_list_guard; +#endif + cfs_atomic_t exp_replay_count; struct obd_uuid exp_client_uuid; - struct list_head exp_obd_chain; - struct hlist_node exp_uuid_hash; /* uuid-export hash*/ - struct hlist_node exp_nid_hash; /* nid-export hash */ + cfs_list_t exp_obd_chain; + cfs_hlist_node_t exp_uuid_hash; /* uuid-export hash*/ + cfs_hlist_node_t exp_nid_hash; /* nid-export hash */ /* exp_obd_chain_timed fo ping evictor, protected by obd_dev_lock */ - struct list_head exp_obd_chain_timed; + cfs_list_t exp_obd_chain_timed; struct obd_device *exp_obd; struct obd_import *exp_imp_reverse; /* to make RPCs backwards */ struct nid_stat *exp_nid_stats; struct lprocfs_stats *exp_md_stats; - struct lprocfs_stats *exp_ldlm_stats; struct ptlrpc_connection *exp_connection; __u32 exp_conn_cnt; - struct ldlm_export_data exp_ldlm_data; - struct list_head exp_outstanding_replies; - time_t exp_last_request_time; - struct list_head exp_req_replay_queue; - spinlock_t exp_lock; /* protects flags int below */ + cfs_hash_t *exp_lock_hash; /* existing lock hash */ + cfs_spinlock_t exp_lock_hash_lock; + cfs_list_t exp_outstanding_replies; + cfs_list_t exp_uncommitted_replies; + cfs_spinlock_t exp_uncommitted_replies_lock; + __u64 exp_last_committed; + cfs_time_t exp_last_request_time; + cfs_list_t exp_req_replay_queue; + cfs_spinlock_t exp_lock; /* protects flags int below */ /* ^ protects exp_outstanding_replies too */ __u64 exp_connect_flags; - int exp_flags; + enum obd_option exp_flags; unsigned long exp_failed:1, exp_in_recovery:1, exp_disconnected:1, exp_connecting:1, + /** VBR: export missed recovery */ + exp_delayed:1, + /** VBR: failed version checking */ + exp_vbr_failed:1, exp_req_replay_needed:1, exp_lock_replay_needed:1, exp_need_sync:1, exp_flvr_changed:1, exp_flvr_adapt:1, - exp_libclient:1; /* liblustre client? */ + exp_libclient:1, /* liblustre client? */ + /* client timed out and tried to reconnect, + * but couldn't because of active rpcs */ + exp_abort_active_req:1; + cfs_list_t exp_queued_rpc; /* RPC to be handled */ /* also protected by exp_lock */ enum lustre_sec_part exp_sp_peer; struct sptlrpc_flavor exp_flvr; /* current */ @@ -153,16 +210,25 @@ struct obd_export { cfs_time_t exp_flvr_expire[2]; /* seconds */ union { + struct lu_export_data eu_target_data; struct mdt_export_data eu_mdt_data; struct filter_export_data eu_filter_data; struct ec_export_data eu_ec_data; } u; }; +#define exp_target_data u.eu_target_data #define exp_mdt_data u.eu_mdt_data #define exp_filter_data u.eu_filter_data #define exp_ec_data u.eu_ec_data +static inline int exp_expired(struct obd_export *exp, cfs_duration_t age) +{ + LASSERT(exp->exp_delayed); + return cfs_time_before(cfs_time_add(exp->exp_last_request_time, age), + cfs_time_current_sec()); +} + static inline int exp_connect_cancelset(struct obd_export *exp) { LASSERT(exp != NULL); @@ -175,6 +241,33 @@ static inline int exp_connect_lru_resize(struct obd_export *exp) return !!(exp->exp_connect_flags & OBD_CONNECT_LRU_RESIZE); } +static inline int exp_connect_rmtclient(struct obd_export *exp) +{ + LASSERT(exp != NULL); + return !!(exp->exp_connect_flags & OBD_CONNECT_RMT_CLIENT); +} + +static inline int client_is_remote(struct obd_export *exp) +{ + struct obd_import *imp = class_exp2cliimp(exp); + + return !!(imp->imp_connect_data.ocd_connect_flags & + OBD_CONNECT_RMT_CLIENT); +} + +static inline int exp_connect_vbr(struct obd_export *exp) +{ + LASSERT(exp != NULL); + LASSERT(exp->exp_connection); + return !!(exp->exp_connect_flags & OBD_CONNECT_VBR); +} + +static inline int exp_connect_som(struct obd_export *exp) +{ + LASSERT(exp != NULL); + return !!(exp->exp_connect_flags & OBD_CONNECT_SOM); +} + static inline int imp_connect_lru_resize(struct obd_import *imp) { struct obd_connect_data *ocd; @@ -187,4 +280,6 @@ static inline int imp_connect_lru_resize(struct obd_import *imp) extern struct obd_export *class_conn2export(struct lustre_handle *conn); extern struct obd_device *class_conn2obd(struct lustre_handle *conn); +/** @} export */ + #endif /* __EXPORT_H */