X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Finclude%2Flustre_export.h;h=f284babd16b8fcb44d48dd17c8e3effd19afd29a;hb=afba77b65ece6a0e32c42dd7990e758b71835ddb;hp=a405fae32eb56d3506269870902eba1f56ed2627;hpb=d2d56f38da01001c92a09afc6b52b5acbd9bc13c;p=fs%2Flustre-release.git diff --git a/lustre/include/lustre_export.h b/lustre/include/lustre_export.h index a405fae..f284bab 100644 --- a/lustre/include/lustre_export.h +++ b/lustre/include/lustre_export.h @@ -1,47 +1,77 @@ /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: + * + * GPL HEADER START + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see + * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + * GPL HEADER END + */ +/* + * Copyright 2008 Sun Microsystems, Inc. All rights reserved + * Use is subject to license terms. + */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. */ #ifndef __EXPORT_H #define __EXPORT_H +#include #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 mds_export_data { - struct list_head med_open_head; - spinlock_t med_open_lock; /* lock med_open_head, mfd_list*/ - struct mds_client_data *med_mcd; - __u64 med_ibits_known; - loff_t med_lr_off; - int med_lr_idx; - unsigned int med_rmtclient:1; /* remote client? */ - __u32 med_nllu; - __u32 med_nllg; - struct mds_idmap_table *med_idmap; +struct lu_export_data { + /** Protects led_lcd below */ + struct semaphore 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 lu_export_data med_led; struct list_head med_open_head; spinlock_t med_open_lock; /* lock med_open_head, mfd_list*/ - struct semaphore med_mcd_lock; - struct mdt_client_data *med_mcd; __u64 med_ibits_known; - loff_t med_lr_off; - int med_lr_idx; - unsigned int med_rmtclient:1; /* remote client? */ - __u32 med_nllu; - __u32 med_nllg; - struct mdt_idmap_table *med_idmap; + struct semaphore 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; @@ -49,34 +79,65 @@ struct osc_creator { 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; + /** + * Limit oscc_grow_count value, can be changed via proc fs + */ + int oscc_max_grow_count; struct obdo oscc_oa; int oscc_flags; 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; }; /* In-memory access to client data from OST struct */ -struct filter_client_data; struct filter_export_data { - spinlock_t fed_lock; /* protects fed_open_head */ - struct filter_client_data *fed_fcd; - loff_t fed_lr_off; - int fed_lr_idx; + struct lu_export_data fed_led; + 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 */ 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; + 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; + atomic_t nid_exp_ref_count; /* for obd_nid_stats_hash + exp_nid_stats */ +}nid_stat_t; + +#define nidstat_getref(nidstat) \ +do { \ + atomic_inc(&(nidstat)->nid_exp_ref_count); \ +} while(0) + +#define nidstat_putref(nidstat) \ +do { \ + atomic_dec(&(nidstat)->nid_exp_ref_count); \ + LASSERTF(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 { @@ -85,45 +146,120 @@ struct obd_export { atomic_t exp_rpc_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 */ /* exp_obd_chain_timed fo ping evictor, protected by obd_dev_lock */ struct list_head exp_obd_chain_timed; struct obd_device *exp_obd; struct obd_import *exp_imp_reverse; /* to make RPCs backwards */ - struct proc_dir_entry *exp_proc; - struct lprocfs_stats *exp_ops_stats; + 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; + lustre_hash_t *exp_lock_hash; /* existing lock hash */ + spinlock_t exp_lock_hash_lock; struct list_head exp_outstanding_replies; - time_t exp_last_request_time; + struct list_head exp_uncommitted_replies; + spinlock_t exp_uncommitted_replies_lock; + __u64 exp_last_committed; + cfs_time_t exp_last_request_time; + struct list_head exp_req_replay_queue; spinlock_t exp_lock; /* protects flags int below */ /* ^ protects exp_outstanding_replies too */ __u64 exp_connect_flags; - int exp_flags; - unsigned int exp_failed:1, + 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_libclient:1; /* liblustre client? */ + exp_flvr_changed:1, + exp_flvr_adapt:1, + exp_libclient:1, /* liblustre client? */ + /* client timed out and tried to reconnect, + * but couldn't because of active rpcs */ + exp_abort_active_req:1; + struct list_head 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 */ + struct sptlrpc_flavor exp_flvr_old[2]; /* about-to-expire */ + cfs_time_t exp_flvr_expire[2]; /* seconds */ + union { - struct mds_export_data eu_mds_data; + 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_mds_data u.eu_mds_data +#define exp_target_data u.eu_target_data #define exp_mdt_data u.eu_mdt_data -#define exp_lov_data u.eu_lov_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); + return !!(exp->exp_connect_flags & OBD_CONNECT_CANCELSET); +} + +static inline int exp_connect_lru_resize(struct obd_export *exp) +{ + LASSERT(exp != NULL); + 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; + + LASSERT(imp != NULL); + ocd = &imp->imp_connect_data; + return !!(ocd->ocd_connect_flags & OBD_CONNECT_LRU_RESIZE); +} + extern struct obd_export *class_conn2export(struct lustre_handle *conn); extern struct obd_device *class_conn2obd(struct lustre_handle *conn);