X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Finclude%2Flustre_export.h;h=7aa1dff891531c4a8d804486b8363f7d90a4d2f5;hb=c60e949e3b9f7ff19e1a644210cc764ee150ad8b;hp=8bac3f3fae3c7cd7c0bb0cabb4f5421975b51d44;hpb=2179aa60137557a8a289ee3b105a5efa7db90ac8;p=fs%2Flustre-release.git diff --git a/lustre/include/lustre_export.h b/lustre/include/lustre_export.h index 8bac3f3..7aa1dff 100644 --- a/lustre/include/lustre_export.h +++ b/lustre/include/lustre_export.h @@ -1,6 +1,4 @@ -/* -*- 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. @@ -17,11 +15,7 @@ * * 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. + * http://www.gnu.org/licenses/gpl-2.0.html * * GPL HEADER END */ @@ -29,7 +23,7 @@ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * - * Copyright (c) 2011, 2012, Whamcloud, Inc. + * Copyright (c) 2011, 2016, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -61,100 +55,115 @@ struct mdt_idmap_table; * Target-specific export data */ struct tg_export_data { - /** Protects led_lcd below */ - cfs_mutex_t ted_lcd_lock; - /** Per-client data for each export */ - struct lsd_client_data *ted_lcd; - /** Offset of record in last_rcvd file */ - loff_t ted_lr_off; - /** Client index in last_rcvd file */ - int ted_lr_idx; + /** Protects ted_lcd, ted_reply_* and + * ted_release_* fields below */ + struct mutex ted_lcd_lock; + /** Per-client data for each export */ + struct lsd_client_data *ted_lcd; + /** Offset of record in last_rcvd file */ + loff_t ted_lr_off; + /** Client index in last_rcvd file */ + int ted_lr_idx; + + /** + * ted_nodemap_lock is used to ensure that the nodemap is not destroyed + * between the time that ted_nodemap is checked for NULL, and a + * reference is taken. Modifications to ted_nodemap require that the + * active_config_lock and the nodemap(s)'s nm_member_list_lock be + * taken, as well as ted_nodemap_lock, so the export can be properly + * added to or removed from the nodemap's member list. When an export + * is added to a nodemap, a reference on that nodemap must be taken. + * That reference can be put only after ted_nodemap no longer refers to + * it. + */ + spinlock_t ted_nodemap_lock; + struct lu_nodemap *ted_nodemap; + struct list_head ted_nodemap_member; + + /** last version of nodemap config sent to client */ + __u64 ted_nodemap_version; + + /* Every reply data fields below are + * protected by ted_lcd_lock */ + /** List of reply data */ + struct list_head ted_reply_list; + int ted_reply_cnt; + /** Reply data with highest transno is retained */ + struct tg_reply_data *ted_reply_last; + /* Statistics */ + int ted_reply_max; /* high water mark */ + int ted_release_xid; + int ted_release_tag; + /* grants */ + long ted_dirty; /* in bytes */ + long ted_grant; /* in bytes */ + long ted_pending; /* bytes just being written */ + __u8 ted_pagebits; /* log2 of client page size */ }; /** * MDT-specific export data */ struct mdt_export_data { - struct tg_export_data med_ted; - /** List of all files opened by client on this MDT */ - cfs_list_t med_open_head; - cfs_spinlock_t med_open_lock; /* lock med_open_head, mfd_list*/ - /** Bitmask of all ibit locks this MDT understands */ - __u64 med_ibits_known; - cfs_mutex_t med_idmap_mutex; - struct lustre_idmap_table *med_idmap; -}; - -struct osc_creator { - 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; - /** - * 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 tg_export_data med_ted; + /** List of all files opened by client on this MDT */ + struct list_head med_open_head; + spinlock_t med_open_lock; /* med_open_head, mfd_list */ }; struct ec_export_data { /* echo client */ - cfs_list_t eced_locks; + struct list_head eced_locks; }; /* In-memory access to client data from OST struct */ /** Filter (oss-side) specific import data */ struct filter_export_data { - struct tg_export_data fed_ted; - cfs_spinlock_t fed_lock; /**< protects fed_mod_list */ - long fed_dirty; /* in bytes */ - long fed_grant; /* in bytes */ - 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 tg_export_data fed_ted; + spinlock_t fed_lock; /**< protects fed_mod_list */ + __u64 fed_lastid_gen; + struct list_head fed_mod_list; /* files being modified */ + /* count of SOFT_SYNC RPCs, which will be reset after + * ofd_soft_sync_limit number of RPCs, and trigger a sync. */ + atomic_t fed_soft_sync_count; + int fed_mod_count;/* items in fed_writing list */ + __u32 fed_group; }; struct mgs_export_data { - cfs_list_t med_clients; /* mgc fs client via this exp */ - cfs_spinlock_t med_lock; /* protect med_clients */ + struct list_head med_clients; /* mgc fs client via this exp */ + spinlock_t med_lock; /* protect med_clients */ }; /** * per-NID statistics structure. * It tracks access patterns to this export on a per-client-NID basis */ -typedef struct nid_stat { - lnet_nid_t nid; - 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; - cfs_atomic_t nid_exp_ref_count; /* for obd_nid_stats_hash - exp_nid_stats */ -}nid_stat_t; +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; + atomic_t nid_exp_ref_count; /* for obd_nid_stats_hash + exp_nid_stats */ +}; #define nidstat_getref(nidstat) \ do { \ - cfs_atomic_inc(&(nidstat)->nid_exp_ref_count); \ + 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); \ + 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, }; @@ -166,73 +175,80 @@ enum obd_option { * attached to the same obd device. */ struct obd_export { - /** - * Export handle, it's id is provided to client on connect - * Subsequent client RPCs contain this handle id to identify - * what export they are talking to. - */ - struct portals_handle exp_handle; - 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 */ + /** + * Export handle, it's id is provided to client on connect + * Subsequent client RPCs contain this handle id to identify + * what export they are talking to. + */ + struct portals_handle exp_handle; + 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 + */ + atomic_t exp_rpc_count; /* RPC references */ + atomic_t exp_cb_count; /* Commit callback references */ + /** Number of queued replay requests to be processes */ + atomic_t exp_replay_count; + 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; + struct list_head exp_locks_list; + spinlock_t exp_locks_list_guard; #endif - /** Number of queued replay requests to be processes */ - cfs_atomic_t exp_replay_count; /** UUID of client connected to this export */ - struct obd_uuid exp_client_uuid; + struct obd_uuid exp_client_uuid; /** To link all exports on an obd device */ - 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 */ + struct list_head exp_obd_chain; + /* Unlinked export list */ + struct list_head exp_stale_list; + struct hlist_node exp_uuid_hash; /** uuid-export hash*/ + struct hlist_node exp_nid_hash; /** nid-export hash */ + struct hlist_node exp_gen_hash; /** last_rcvd clt gen hash */ /** * All exports eligible for ping evictor are linked into a list * through this field in "most time since last request on this export" * order * protected by obd_dev_lock */ - cfs_list_t exp_obd_chain_timed; - /** Obd device of this export */ - struct obd_device *exp_obd; - /** "reverse" import to send requests (e.g. from ldlm) back to client */ + struct list_head exp_obd_chain_timed; + /** Obd device of this export */ + struct obd_device *exp_obd; + /** + * "reverse" import to send requests (e.g. from ldlm) back to client + * exp_lock protect its change + */ struct obd_import *exp_imp_reverse; struct nid_stat *exp_nid_stats; - struct lprocfs_stats *exp_md_stats; /** Active connetion */ struct ptlrpc_connection *exp_connection; - /** Connection count value from last succesful reconnect rpc */ - __u32 exp_conn_cnt; - /** Hash list of all ldlm locks granted on this export */ - cfs_hash_t *exp_lock_hash; - /** Lock protecting access to exp_flock_wait_list */ - cfs_rwlock_t exp_flock_wait_lock; - /** - * Wait queue for Posix lock deadlock detection, added with - * ldlm_lock::l_flock_waitq. - */ - cfs_list_t exp_flock_wait_list; - cfs_list_t exp_outstanding_replies; - cfs_list_t exp_uncommitted_replies; - cfs_spinlock_t exp_uncommitted_replies_lock; - /** Last committed transno for this export */ - __u64 exp_last_committed; - /** When was last request received */ - cfs_time_t exp_last_request_time; - /** On replay all requests waiting for replay are linked here */ - cfs_list_t exp_req_replay_queue; - /** protects exp_flags and exp_outstanding_replies */ - cfs_spinlock_t exp_lock; - /** Compatibility flags for this export */ - __u64 exp_connect_flags; + /** Connection count value from last successful reconnect rpc */ + __u32 exp_conn_cnt; + /** Hash list of all ldlm locks granted on this export */ + struct cfs_hash *exp_lock_hash; + /** + * Hash list for Posix lock deadlock detection, added with + * ldlm_lock::l_exp_flock_hash. + */ + struct cfs_hash *exp_flock_hash; + struct list_head exp_outstanding_replies; + struct list_head exp_uncommitted_replies; + spinlock_t exp_uncommitted_replies_lock; + /** Last committed transno for this export */ + __u64 exp_last_committed; + /** When was last request received */ + cfs_time_t exp_last_request_time; + /** On replay all requests waiting for replay are linked here */ + struct list_head exp_req_replay_queue; + /** + * protects exp_flags, exp_outstanding_replies and the change + * of exp_imp_reverse + */ + spinlock_t exp_lock; + /** Compatibility flags for this export are embedded into + * exp_connect_data */ + struct obd_connect_data exp_connect_data; enum obd_option exp_flags; unsigned long exp_failed:1, exp_in_recovery:1, @@ -248,22 +264,26 @@ struct obd_export { 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; + /* if to swap nidtbl entries for 2.2 clients. + * Only used by the MGS to fix LU-1644. */ + exp_need_mne_swab:1, + /* The export already got final replay ping + * request. */ + exp_replay_done:1; /* 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 */ + time64_t exp_flvr_expire[2]; /* seconds */ /** protects exp_hp_rpcs */ - cfs_spinlock_t exp_rpc_lock; - cfs_list_t exp_hp_rpcs; /* (potential) HP RPCs */ + spinlock_t exp_rpc_lock; + struct list_head exp_hp_rpcs; /* (potential) HP RPCs */ + struct list_head exp_reg_rpcs; /* RPC being handled */ - /** blocking dlm lock list, protected by exp_bl_list_lock */ - cfs_list_t exp_bl_list; - cfs_spinlock_t exp_bl_list_lock; + /** blocking dlm lock list, protected by exp_bl_list_lock */ + struct list_head exp_bl_list; + spinlock_t exp_bl_list_lock; /** Target specific data */ union { @@ -273,6 +293,13 @@ struct obd_export { struct ec_export_data eu_ec_data; struct mgs_export_data eu_mgs_data; } u; + + struct adaptive_timeout exp_bl_lock_at; + + /** highest XID received by export client that has no + * unreceived lower-numbered XID + */ + __u64 exp_last_xid; }; #define exp_target_data u.eu_target_data @@ -280,50 +307,59 @@ struct obd_export { #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) +static inline __u64 *exp_connect_flags_ptr(struct obd_export *exp) { - LASSERT(exp->exp_delayed); - return cfs_time_before(cfs_time_add(exp->exp_last_request_time, age), - cfs_time_current_sec()); + return &exp->exp_connect_data.ocd_connect_flags; } -static inline int exp_connect_cancelset(struct obd_export *exp) +static inline __u64 exp_connect_flags(struct obd_export *exp) { - LASSERT(exp != NULL); - return !!(exp->exp_connect_flags & OBD_CONNECT_CANCELSET); + return *exp_connect_flags_ptr(exp); } -static inline int exp_connect_lru_resize(struct obd_export *exp) +static inline int exp_max_brw_size(struct obd_export *exp) { - LASSERT(exp != NULL); - return !!(exp->exp_connect_flags & OBD_CONNECT_LRU_RESIZE); + LASSERT(exp != NULL); + if (exp_connect_flags(exp) & OBD_CONNECT_BRW_SIZE) + return exp->exp_connect_data.ocd_brw_size; + + return ONE_MB_BRW_SIZE; } -static inline int exp_connect_rmtclient(struct obd_export *exp) +static inline int exp_connect_multibulk(struct obd_export *exp) { - LASSERT(exp != NULL); - return !!(exp->exp_connect_flags & OBD_CONNECT_RMT_CLIENT); + return exp_max_brw_size(exp) > ONE_MB_BRW_SIZE; +} + +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 client_is_remote(struct obd_export *exp) +static inline int exp_connect_cancelset(struct obd_export *exp) { - struct obd_import *imp = class_exp2cliimp(exp); + LASSERT(exp != NULL); + return !!(exp_connect_flags(exp) & OBD_CONNECT_CANCELSET); +} - return !!(imp->imp_connect_data.ocd_connect_flags & - OBD_CONNECT_RMT_CLIENT); +static inline int exp_connect_lru_resize(struct obd_export *exp) +{ + LASSERT(exp != NULL); + return !!(exp_connect_flags(exp) & OBD_CONNECT_LRU_RESIZE); } 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); + LASSERT(exp != NULL); + LASSERT(exp->exp_connection); + return !!(exp_connect_flags(exp) & OBD_CONNECT_VBR); } -static inline int exp_connect_som(struct obd_export *exp) +static inline int exp_connect_umask(struct obd_export *exp) { - LASSERT(exp != NULL); - return !!(exp->exp_connect_flags & OBD_CONNECT_SOM); + return !!(exp_connect_flags(exp) & OBD_CONNECT_UMASK); } static inline int imp_connect_lru_resize(struct obd_import *imp) @@ -335,9 +371,64 @@ static inline int imp_connect_lru_resize(struct obd_import *imp) return !!(ocd->ocd_connect_flags & OBD_CONNECT_LRU_RESIZE); } +static inline int exp_connect_layout(struct obd_export *exp) +{ + return !!(exp_connect_flags(exp) & OBD_CONNECT_LAYOUTLOCK); +} + +static inline bool exp_connect_lvb_type(struct obd_export *exp) +{ + LASSERT(exp != NULL); + if (exp_connect_flags(exp) & OBD_CONNECT_LVB_TYPE) + return true; + else + return false; +} + +static inline bool imp_connect_lvb_type(struct obd_import *imp) +{ + struct obd_connect_data *ocd; + + LASSERT(imp != NULL); + ocd = &imp->imp_connect_data; + if (ocd->ocd_connect_flags & OBD_CONNECT_LVB_TYPE) + return true; + else + return false; +} + +static inline bool imp_connect_disp_stripe(struct obd_import *imp) +{ + struct obd_connect_data *ocd; + + LASSERT(imp != NULL); + ocd = &imp->imp_connect_data; + return ocd->ocd_connect_flags & OBD_CONNECT_DISP_STRIPE; +} + +static inline __u64 exp_connect_ibits(struct obd_export *exp) +{ + struct obd_connect_data *ocd; + + ocd = &exp->exp_connect_data; + return ocd->ocd_ibits_known; +} + +static inline int exp_connect_large_acl(struct obd_export *exp) +{ + return !!(exp_connect_flags(exp) & OBD_CONNECT_LARGE_ACL); +} + extern struct obd_export *class_conn2export(struct lustre_handle *conn); extern struct obd_device *class_conn2obd(struct lustre_handle *conn); +#define KKUC_CT_DATA_MAGIC 0x092013cea +struct kkuc_ct_data { + __u32 kcd_magic; + struct obd_uuid kcd_uuid; + __u32 kcd_archive; +}; + /** @} export */ #endif /* __EXPORT_H */