X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Finclude%2Flustre_export.h;h=f6e136afad37886ca8dd8b11095c6fe9c514a6cd;hp=ce40d58e07c1ba1c6ced8990ce793c1e7bbe20e4;hb=5315db3f1066619d6effe4f778d2df3ad1ba738f;hpb=0136a91b6d629556ef091f5ca210c13772207df9 diff --git a/lustre/include/lustre_export.h b/lustre/include/lustre_export.h index ce40d58..f6e136a 100644 --- a/lustre/include/lustre_export.h +++ b/lustre/include/lustre_export.h @@ -15,11 +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 */ @@ -27,7 +23,7 @@ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * - * Copyright (c) 2011, 2014, Intel Corporation. + * Copyright (c) 2011, 2017, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -46,8 +42,11 @@ * @{ */ +#include +#include + #include -#include +#include #include struct mds_client_data; @@ -59,7 +58,8 @@ struct mdt_idmap_table; * Target-specific export data */ struct tg_export_data { - /** Protects led_lcd below */ + /** 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; @@ -68,9 +68,47 @@ struct tg_export_data { /** Client index in last_rcvd file */ int ted_lr_idx; - /** nodemap this export is a member of */ + /** + * 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 hlist_node ted_nodemap_member; + 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 */ + + /** + * File Modification Data (FMD) tracking + */ + spinlock_t ted_fmd_lock; /* protects ted_fmd_list */ + struct list_head ted_fmd_list; /* FIDs being modified */ + int ted_fmd_count;/* items in ted_fmd_list */ }; /** @@ -81,8 +119,6 @@ struct mdt_export_data { /** 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 mutex med_idmap_mutex; - struct lustre_idmap_table *med_idmap; }; struct ec_export_data { /* echo client */ @@ -93,18 +129,11 @@ struct ec_export_data { /* echo client */ /** Filter (oss-side) specific import data */ struct filter_export_data { struct tg_export_data fed_ted; - spinlock_t fed_lock; /**< protects fed_mod_list */ __u64 fed_lastid_gen; - long fed_dirty; /* in bytes */ - long fed_grant; /* in bytes */ - struct list_head fed_mod_list; /* files being modified */ - long fed_pending; /* bytes just being written */ /* 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; - __u8 fed_pagesize; /* log2 of client page size */ }; struct mgs_export_data { @@ -160,12 +189,11 @@ struct obd_export { * 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 + * The sum of them should be less than exp_handle.href by 3 */ atomic_t exp_rpc_count; /* RPC references */ atomic_t exp_cb_count; /* Commit callback references */ @@ -180,8 +208,13 @@ struct obd_export { struct obd_uuid exp_client_uuid; /** To link all exports on an obd device */ struct list_head exp_obd_chain; - struct hlist_node exp_uuid_hash; /** uuid-export hash*/ + /** work_struct for destruction of export */ + struct work_struct exp_zombie_work; + /* Unlinked export list */ + struct list_head exp_stale_list; + struct rhash_head 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" @@ -214,42 +247,46 @@ struct obd_export { /** Last committed transno for this export */ __u64 exp_last_committed; /** When was last request received */ - cfs_time_t exp_last_request_time; + time64_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; + 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, - 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? */ - /* if to swap nidtbl entries for 2.2 clients. - * Only used by the MGS to fix LU-1644. */ - exp_need_mne_swab: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 */ - - /** protects exp_hp_rpcs */ + struct obd_connect_data exp_connect_data; + 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, + /* 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, + /* local client with recovery disabled */ + exp_no_recovery: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 */ + time64_t exp_flvr_expire[2]; /* seconds */ + + /** protects exp_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 */ @@ -268,6 +305,12 @@ struct obd_export { } 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; + long *exp_used_slots; }; #define exp_target_data u.eu_target_data @@ -285,6 +328,18 @@ static inline __u64 exp_connect_flags(struct obd_export *exp) return *exp_connect_flags_ptr(exp); } +static inline __u64 *exp_connect_flags2_ptr(struct obd_export *exp) +{ + return &exp->exp_connect_data.ocd_connect_flags2; +} + +static inline __u64 exp_connect_flags2(struct obd_export *exp) +{ + if (exp_connect_flags(exp) & OBD_CONNECT_FLAGS2) + return *exp_connect_flags2_ptr(exp); + return 0; +} + static inline int exp_max_brw_size(struct obd_export *exp) { LASSERT(exp != NULL); @@ -299,13 +354,6 @@ static inline int exp_connect_multibulk(struct obd_export *exp) 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 exp_connect_cancelset(struct obd_export *exp) { LASSERT(exp != NULL); @@ -318,20 +366,6 @@ static inline int exp_connect_lru_resize(struct obd_export *exp) return !!(exp_connect_flags(exp) & OBD_CONNECT_LRU_RESIZE); } -static inline int exp_connect_rmtclient(struct obd_export *exp) -{ - LASSERT(exp != NULL); - return !!(exp_connect_flags(exp) & 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); @@ -388,6 +422,13 @@ static inline bool imp_connect_disp_stripe(struct obd_import *imp) return ocd->ocd_connect_flags & OBD_CONNECT_DISP_STRIPE; } +static inline bool imp_connect_shortio(struct obd_import *imp) +{ + struct obd_connect_data *ocd = &imp->imp_connect_data; + + return ocd->ocd_connect_flags & OBD_CONNECT_SHORTIO; +} + static inline __u64 exp_connect_ibits(struct obd_export *exp) { struct obd_connect_data *ocd; @@ -396,14 +437,55 @@ static inline __u64 exp_connect_ibits(struct obd_export *exp) 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); +} + +static inline int exp_connect_lockahead(struct obd_export *exp) +{ + return !!(exp_connect_flags2(exp) & OBD_CONNECT2_LOCKAHEAD); +} + +static inline int exp_connect_overstriping(struct obd_export *exp) +{ + return !!(exp_connect_flags2(exp) & OBD_CONNECT2_OVERSTRIPING); +} + +static inline int exp_connect_flr(struct obd_export *exp) +{ + return !!(exp_connect_flags2(exp) & OBD_CONNECT2_FLR); +} + +static inline int exp_connect_lock_convert(struct obd_export *exp) +{ + return !!(exp_connect_flags2(exp) & OBD_CONNECT2_LOCK_CONVERT); +} + 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 +static inline int exp_connect_archive_id_array(struct obd_export *exp) +{ + return !!(exp_connect_flags2(exp) & OBD_CONNECT2_ARCHIVE_ID_ARRAY); +} + +static inline int exp_connect_sepol(struct obd_export *exp) +{ + return !!(exp_connect_flags2(exp) & OBD_CONNECT2_SELINUX_POLICY); +} + +enum { + /* archive_ids in array format */ + KKUC_CT_DATA_ARRAY_MAGIC = 0x092013cea, + /* archive_ids in bitmap format */ + KKUC_CT_DATA_BITMAP_MAGIC = 0x082018cea, +}; + + struct kkuc_ct_data { __u32 kcd_magic; - struct obd_uuid kcd_uuid; - __u32 kcd_archive; + __u32 kcd_nr_archives; + __u32 kcd_archives[0]; }; /** @} export */