/* -*- 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 /* 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 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; __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; struct lustre_idmap_table *med_idmap; }; struct osc_creator { spinlock_t oscc_lock; struct list_head oscc_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; /** * 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_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; 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; }; 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 brw_stats *nid_brw_stats; int nid_exp_ref_count; }nid_stat_t; struct obd_export { struct portals_handle exp_handle; atomic_t exp_refcount; 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 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 */ /* ^ protects exp_outstanding_replies too */ __u64 exp_connect_flags; int exp_flags; unsigned long exp_failed:1, exp_in_recovery:1, exp_disconnected:1, exp_connecting: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? */ /* 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 mdt_export_data eu_mdt_data; struct filter_export_data eu_filter_data; struct ec_export_data eu_ec_data; } u; }; #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_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 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); #endif /* __EXPORT_H */