/* * 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.gnu.org/licenses/gpl-2.0.html * * GPL HEADER END */ /* * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * * Copyright (c) 2011, 2017, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ * Lustre is a trademark of Sun Microsystems, Inc. */ #ifndef __CLASS_OBD_H #define __CLASS_OBD_H #include #include #include #include #include #include #include #include #define OBD_STATFS_NODELAY 0x0001 /* requests should be send without delay * and resends for avoid deadlocks */ #define OBD_STATFS_FROM_CACHE 0x0002 /* the statfs callback should not update * obd_osfs_age */ #define OBD_STATFS_FOR_MDT0 0x0004 /* The statfs is only for retrieving * information from MDT0. */ #define OBD_STATFS_SUM 0x0008 /* get aggregated statfs from MDT */ extern rwlock_t obd_dev_lock; /* OBD Operations Declarations */ extern struct obd_device *class_exp2obd(struct obd_export *); extern int class_handle_ioctl(unsigned int cmd, unsigned long arg); int lustre_get_jobid(char *jobid, size_t len); void lustre_jobid_clear(const char *jobid); void jobid_cache_fini(void); int jobid_cache_init(void); char *jobid_current(void); int jobid_set_current(char *jobid); struct lu_device_type; /* genops.c */ struct obd_export *class_conn2export(struct lustre_handle *); #ifdef HAVE_SERVER_SUPPORT struct obd_type *class_add_symlinks(const char *name, bool enable_proc); #endif int class_register_type(const struct obd_ops *dt_ops, const struct md_ops *md_ops, bool enable_proc, struct lprocfs_vars *module_vars, const char *nm, struct lu_device_type *ldt); int class_unregister_type(const char *nm); struct obd_device *class_newdev(const char *type_name, const char *name, const char *uuid); int class_register_device(struct obd_device *obd); void class_unregister_device(struct obd_device *obd); void class_free_dev(struct obd_device *obd); struct obd_device *class_dev_by_str(const char *str); int class_name2dev(const char *name); struct obd_device *class_name2obd(const char *name); int class_uuid2dev(struct obd_uuid *uuid); struct obd_device *class_uuid2obd(struct obd_uuid *uuid); void class_obd_list(void); struct obd_device * class_find_client_obd(struct obd_uuid *tgt_uuid, const char *type_name, struct obd_uuid *grp_uuid); struct obd_device * class_devices_in_group(struct obd_uuid *grp_uuid, int *next); struct obd_device * class_num2obd(int num); int get_devices_count(void); int class_notify_sptlrpc_conf(const char *fsname, int namelen); static inline char *obd_export_nid2str(struct obd_export *exp) { return exp->exp_connection == NULL ? "" : libcfs_nid2str(exp->exp_connection->c_peer.nid); } static inline char *obd_import_nid2str(struct obd_import *imp) { return imp->imp_connection == NULL ? "" : libcfs_nid2str(imp->imp_connection->c_peer.nid); } int obd_export_evict_by_nid(struct obd_device *obd, const char *nid); int obd_export_evict_by_uuid(struct obd_device *obd, const char *uuid); int obd_connect_flags2str(char *page, int count, __u64 flags, __u64 flags2, const char *sep); int obd_zombie_impexp_init(void); void obd_zombie_impexp_stop(void); void obd_zombie_impexp_cull(void); void obd_zombie_barrier(void); void obd_exports_barrier(struct obd_device *obd); int kuc_len(int payload_len); struct kuc_hdr * kuc_ptr(void *p); void *kuc_alloc(int payload_len, int transport, int type); void kuc_free(void *p, int payload_len); int obd_get_request_slot(struct client_obd *cli); void obd_put_request_slot(struct client_obd *cli); __u32 obd_get_max_rpcs_in_flight(struct client_obd *cli); int obd_set_max_rpcs_in_flight(struct client_obd *cli, __u32 max); __u16 obd_get_max_mod_rpcs_in_flight(struct client_obd *cli); int obd_set_max_mod_rpcs_in_flight(struct client_obd *cli, __u16 max); int obd_mod_rpc_stats_seq_show(struct client_obd *cli, struct seq_file *seq); __u16 obd_get_mod_rpc_slot(struct client_obd *cli, __u32 opc); void obd_put_mod_rpc_slot(struct client_obd *cli, __u32 opc, __u16 tag); struct llog_handle; struct llog_rec_hdr; typedef int (*llog_cb_t)(const struct lu_env *, struct llog_handle *, struct llog_rec_hdr *, void *); struct obd_export *obd_stale_export_get(void); void obd_stale_export_put(struct obd_export *exp); void obd_stale_export_adjust(struct obd_export *exp); /* obd_config.c */ /* For interoperability */ struct cfg_interop_param { char *old_param; char *new_param; }; char *lustre_cfg_string(struct lustre_cfg *lcfg, u32 index); struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg, const char *new_name); void print_lustre_cfg(struct lustre_cfg *lcfg); int class_process_config(struct lustre_cfg *lcfg); ssize_t class_set_global(const char *param); ssize_t class_modify_config(struct lustre_cfg *lcfg, const char *prefix, struct kobject *kobj); int class_attach(struct lustre_cfg *lcfg); int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg); int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg); int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg); int class_find_param(char *buf, char *key, char **valp); struct cfg_interop_param *class_find_old_param(const char *param, struct cfg_interop_param *ptr); int class_get_next_param(char **params, char *copy); int class_match_param(char *buf, const char *key, char **valp); int class_parse_nid(char *buf, lnet_nid_t *nid, char **endh); int class_parse_nid_quiet(char *buf, lnet_nid_t *nid, char **endh); int class_parse_net(char *buf, u32 *net, char **endh); int class_match_nid(char *buf, char *key, lnet_nid_t nid); int class_match_net(char *buf, char *key, u32 net); struct obd_device *class_incref(struct obd_device *obd, const char *scope, const void *source); void class_decref(struct obd_device *obd, const char *scope, const void *source); void dump_exports(struct obd_device *obd, int locks, int debug_level); int class_config_llog_handler(const struct lu_env *env, struct llog_handle *handle, struct llog_rec_hdr *rec, void *data); int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg); #define CFG_F_START 0x01 /* Set when we start updating from a log */ #define CFG_F_MARKER 0x02 /* We are within a maker */ #define CFG_F_SKIP 0x04 /* We should ignore this cfg command */ #define CFG_F_EXCLUDE 0x10 /* OST exclusion list */ /* Passed as data param to class_config_parse_llog */ struct config_llog_instance { unsigned long cfg_instance; struct super_block *cfg_sb; struct obd_uuid cfg_uuid; llog_cb_t cfg_callback; int cfg_last_idx; /* for partial llog processing */ int cfg_flags; __u32 cfg_lwp_idx; __u32 cfg_sub_clds; }; int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt, char *name, struct config_llog_instance *cfg); /** * Generate a unique configuration instance for this mount * * Temporary hack to bypass ASLR in 4.15+ kernels, a better fix soon. * For now, use the same value as before - the superblock pointer value. * * Using the client UUID would be an option, but it needs more testing. */ static inline unsigned long ll_get_cfg_instance(struct super_block *sb) { return (unsigned long)sb; } #define CONFIG_SUB_SPTLRPC 0x01 #define CONFIG_SUB_RECOVER 0x02 #define CONFIG_SUB_PARAMS 0x04 #define CONFIG_SUB_NODEMAP 0x08 #define CONFIG_SUB_BARRIER 0x10 /* Sub clds should be attached to the config_llog_data when processing * config log for client or server target. */ #define CONFIG_SUB_CLIENT (CONFIG_SUB_SPTLRPC | CONFIG_SUB_RECOVER | \ CONFIG_SUB_PARAMS) #define CONFIG_SUB_SERVER (CONFIG_SUB_CLIENT | CONFIG_SUB_NODEMAP | \ CONFIG_SUB_BARRIER) #define PARAMS_FILENAME "params" #define BARRIER_FILENAME "barrier" #define LCTL_UPCALL "lctl" static inline bool logname_is_barrier(const char *logname) { char *ptr; /* logname for barrier is "fsname-barrier" */ ptr = strstr(logname, BARRIER_FILENAME); if (ptr && (ptr - logname) >= 2 && *(ptr - 1) == '-' && *(ptr + 7) == '\0') return true; return false; } /* list of active configuration logs */ struct config_llog_data { struct ldlm_res_id cld_resid; struct lustre_handle cld_lockh; struct config_llog_instance cld_cfg; struct list_head cld_list_chain;/* on config_llog_list */ atomic_t cld_refcount; struct config_llog_data *cld_sptlrpc;/* depended sptlrpc log */ struct config_llog_data *cld_params; /* common parameters log */ struct config_llog_data *cld_recover;/* imperative recover log */ struct config_llog_data *cld_nodemap;/* nodemap log */ struct config_llog_data *cld_barrier;/* barrier log (for MDT only) */ struct obd_export *cld_mgcexp; struct mutex cld_lock; int cld_type; unsigned int cld_stopping:1, /* we were told to stop * watching */ cld_lostlock:1; /* lock not requeued */ char cld_logname[0]; }; struct lustre_profile { struct list_head lp_list; char *lp_profile; char *lp_dt; char *lp_md; int lp_refs; bool lp_list_deleted; }; struct lustre_profile *class_get_profile(const char * prof); void class_del_profile(const char *prof); void class_put_profile(struct lustre_profile *lprof); void class_del_profiles(void); #if LUSTRE_TRACKS_LOCK_EXP_REFS void __class_export_add_lock_ref(struct obd_export *, struct ldlm_lock *); void __class_export_del_lock_ref(struct obd_export *, struct ldlm_lock *); extern void (*class_export_dump_hook)(struct obd_export *); #else #define __class_export_add_lock_ref(exp, lock) do {} while(0) #define __class_export_del_lock_ref(exp, lock) do {} while(0) #endif #define class_export_rpc_inc(exp) \ ({ \ atomic_inc(&(exp)->exp_rpc_count); \ CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \ (exp), atomic_read(&(exp)->exp_rpc_count)); \ }) #define class_export_rpc_dec(exp) \ ({ \ LASSERT_ATOMIC_POS(&exp->exp_rpc_count); \ atomic_dec(&(exp)->exp_rpc_count); \ CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \ (exp), atomic_read(&(exp)->exp_rpc_count)); \ }) #define class_export_lock_get(exp, lock) \ ({ \ atomic_inc(&(exp)->exp_locks_count); \ __class_export_add_lock_ref(exp, lock); \ CDEBUG(D_INFO, "lock GETting export %p : new locks_count %d\n", \ (exp), atomic_read(&(exp)->exp_locks_count)); \ class_export_get(exp); \ }) #define class_export_lock_put(exp, lock) \ ({ \ LASSERT_ATOMIC_POS(&exp->exp_locks_count); \ atomic_dec(&(exp)->exp_locks_count); \ __class_export_del_lock_ref(exp, lock); \ CDEBUG(D_INFO, "lock PUTting export %p : new locks_count %d\n", \ (exp), atomic_read(&(exp)->exp_locks_count)); \ class_export_put(exp); \ }) #define class_export_cb_get(exp) \ ({ \ atomic_inc(&(exp)->exp_cb_count); \ CDEBUG(D_INFO, "callback GETting export %p : new cb_count %d\n",\ (exp), atomic_read(&(exp)->exp_cb_count)); \ class_export_get(exp); \ }) #define class_export_cb_put(exp) \ ({ \ LASSERT_ATOMIC_POS(&exp->exp_cb_count); \ atomic_dec(&(exp)->exp_cb_count); \ CDEBUG(D_INFO, "callback PUTting export %p : new cb_count %d\n",\ (exp), atomic_read(&(exp)->exp_cb_count)); \ class_export_put(exp); \ }) /* genops.c */ struct obd_export *class_export_get(struct obd_export *exp); void class_export_put(struct obd_export *exp); struct obd_export *class_new_export(struct obd_device *obddev, struct obd_uuid *cluuid); struct obd_export *class_new_export_self(struct obd_device *obd, struct obd_uuid *uuid); void class_unlink_export(struct obd_export *exp); struct obd_import *class_import_get(struct obd_import *); void class_import_put(struct obd_import *); struct obd_import *class_new_import(struct obd_device *obd); void class_destroy_import(struct obd_import *exp); #ifdef HAVE_SERVER_SUPPORT struct obd_type *class_search_type(const char *name); struct obd_type *class_get_type(const char *name); #endif void class_put_type(struct obd_type *type); int class_connect(struct lustre_handle *conn, struct obd_device *obd, struct obd_uuid *cluuid); int class_disconnect(struct obd_export *exp); void class_fail_export(struct obd_export *exp); int class_connected_export(struct obd_export *exp); void class_disconnect_exports(struct obd_device *obddev); int class_manual_cleanup(struct obd_device *obd); void class_disconnect_stale_exports(struct obd_device *, int (*test_export)(struct obd_export *)); static inline enum obd_option exp_flags_from_obd(struct obd_device *obd) { return ((obd->obd_fail ? OBD_OPT_FAILOVER : 0) | (obd->obd_force ? OBD_OPT_FORCE : 0) | (obd->obd_abort_recovery ? OBD_OPT_ABORT_RECOV : 0) | 0); } #ifdef HAVE_SERVER_SUPPORT static inline struct lu_target *class_exp2tgt(struct obd_export *exp) { LASSERT(exp->exp_obd); if (exp->exp_obd->u.obt.obt_magic != OBT_MAGIC) return NULL; return exp->exp_obd->u.obt.obt_lut; } static inline struct lr_server_data *class_server_data(struct obd_device *obd) { LASSERT(obd->u.obt.obt_lut); return &obd->u.obt.obt_lut->lut_lsd; } #endif /* obdo.c */ struct lu_attr; struct inode; void obdo_from_la(struct obdo *dst, const struct lu_attr *la, u64 valid); void la_from_obdo(struct lu_attr *la, const struct obdo *dst, u64 valid); void obdo_cpy_md(struct obdo *dst, const struct obdo *src, u64 valid); void obdo_to_ioobj(const struct obdo *oa, struct obd_ioobj *ioobj); #define OBP(dev, op) (dev)->obd_type->typ_dt_ops->o_ ## op #define MDP(dev, op) (dev)->obd_type->typ_md_ops->m_ ## op static inline int obd_check_dev(struct obd_device *obd) { if (!obd) { CERROR("NULL device\n"); return -ENODEV; } return 0; } /* ensure obd_setup and !obd_stopping */ #define OBD_CHECK_DEV_ACTIVE(obd) \ do { \ rc = obd_check_dev(obd); \ if (rc) \ return rc; \ \ if (!(obd)->obd_set_up || (obd)->obd_stopping) { \ CERROR("Device %d not setup\n", \ (obd)->obd_minor); \ RETURN(-ENODEV); \ } \ } while (0) static inline int lprocfs_nid_ldlm_stats_init(struct nid_stat* tmp) { /* Always add in ldlm_stats */ tmp->nid_ldlm_stats = lprocfs_alloc_stats(LDLM_LAST_OPC - LDLM_FIRST_OPC, LPROCFS_STATS_FLAG_NOPERCPU); if (tmp->nid_ldlm_stats == NULL) return -ENOMEM; lprocfs_init_ldlm_stats(tmp->nid_ldlm_stats); return lprocfs_register_stats(tmp->nid_proc, "ldlm_stats", tmp->nid_ldlm_stats); } static inline int exp_check_ops(struct obd_export *exp) { if (exp == NULL) { RETURN(-ENODEV); } if (exp->exp_obd == NULL || !exp->exp_obd->obd_type) { RETURN(-EOPNOTSUPP); } RETURN(0); } static inline int class_devno_max(void) { return MAX_OBD_DEVICES; } static inline int obd_get_info(const struct lu_env *env, struct obd_export *exp, __u32 keylen, void *key, __u32 *vallen, void *val) { int rc; ENTRY; rc = exp_check_ops(exp); if (rc) RETURN(rc); if (!exp->exp_obd->obd_type->typ_dt_ops->o_get_info) { CERROR("%s: no %s operation\n", (exp)->exp_obd->obd_name, __func__); RETURN(-ENOTSUPP); } rc = OBP(exp->exp_obd, get_info)(env, exp, keylen, key, vallen, val); RETURN(rc); } static inline int obd_set_info_async(const struct lu_env *env, struct obd_export *exp, __u32 keylen, void *key, __u32 vallen, void *val, struct ptlrpc_request_set *set) { int rc; ENTRY; rc = exp_check_ops(exp); if (rc) RETURN(rc); if (!exp->exp_obd->obd_type->typ_dt_ops->o_set_info_async) { CERROR("%s: no %s operation\n", (exp)->exp_obd->obd_name, __func__); RETURN(-ENOTSUPP); } rc = OBP(exp->exp_obd, set_info_async)(env, exp, keylen, key, vallen, val, set); RETURN(rc); } /* * obd-lu integration. * * Functionality is being moved into new lu_device-based layering, but some * pieces of configuration process are still based on obd devices. * * Specifically, lu_device_type_operations::ldto_device_alloc() methods fully * subsume ->o_setup() methods of obd devices they replace. The same for * lu_device_operations::ldo_process_config() and ->o_process_config(). As a * result, obd_setup() and obd_process_config() branch and call one XOR * another. * * Yet neither lu_device_type_operations::ldto_device_fini() nor * lu_device_type_operations::ldto_device_free() fully implement the * functionality of ->o_precleanup() and ->o_cleanup() they override. Hence, * obd_precleanup() and obd_cleanup() call both lu_device and obd operations. */ static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg) { int rc; struct lu_device_type *ldt = obd->obd_type->typ_lu; struct lu_device *d; ENTRY; if (ldt != NULL) { struct lu_context session_ctx; struct lu_env env; lu_context_init(&session_ctx, LCT_SESSION | LCT_SERVER_SESSION); session_ctx.lc_thread = NULL; lu_context_enter(&session_ctx); rc = lu_env_init(&env, ldt->ldt_ctx_tags); if (rc == 0) { env.le_ses = &session_ctx; d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg); lu_env_fini(&env); if (!IS_ERR(d)) { obd->obd_lu_dev = d; d->ld_obd = obd; rc = 0; } else rc = PTR_ERR(d); } lu_context_exit(&session_ctx); lu_context_fini(&session_ctx); } else { if (!obd->obd_type->typ_dt_ops->o_setup) { CERROR("%s: no %s operation\n", obd->obd_name, __func__); RETURN(-EOPNOTSUPP); } rc = OBP(obd, setup)(obd, cfg); } RETURN(rc); } static inline int obd_precleanup(struct obd_device *obd) { int rc; struct lu_device_type *ldt = obd->obd_type->typ_lu; struct lu_device *d = obd->obd_lu_dev; ENTRY; if (ldt != NULL && d != NULL) { struct lu_env *env = lu_env_find(); struct lu_env _env; if (!env) { env = &_env; rc = lu_env_init(env, ldt->ldt_ctx_tags); LASSERT(rc == 0); lu_env_add(env); } ldt->ldt_ops->ldto_device_fini(env, d); if (env == &_env) { lu_env_remove(env); lu_env_fini(env); } } if (!obd->obd_type->typ_dt_ops->o_precleanup) RETURN(0); rc = OBP(obd, precleanup)(obd); RETURN(rc); } static inline int obd_cleanup(struct obd_device *obd) { int rc; struct lu_device_type *ldt = obd->obd_type->typ_lu; struct lu_device *d = obd->obd_lu_dev; ENTRY; if (ldt != NULL && d != NULL) { struct lu_env env; rc = lu_env_init(&env, ldt->ldt_ctx_tags); if (rc == 0) { ldt->ldt_ops->ldto_device_free(&env, d); lu_env_fini(&env); obd->obd_lu_dev = NULL; } } if (!obd->obd_type->typ_dt_ops->o_cleanup) RETURN(0); rc = OBP(obd, cleanup)(obd); RETURN(rc); } static inline void obd_cleanup_client_import(struct obd_device *obd) { ENTRY; /* If we set up but never connected, the client import will not have been cleaned. */ down_write(&obd->u.cli.cl_sem); if (obd->u.cli.cl_import) { struct obd_import *imp; imp = obd->u.cli.cl_import; CDEBUG(D_CONFIG, "%s: client import never connected\n", obd->obd_name); ptlrpc_invalidate_import(imp); client_destroy_import(imp); obd->u.cli.cl_import = NULL; } up_write(&obd->u.cli.cl_sem); EXIT; } static inline int obd_process_config(struct obd_device *obd, int datalen, void *data) { int rc; struct lu_device_type *ldt = obd->obd_type->typ_lu; struct lu_device *d = obd->obd_lu_dev; ENTRY; obd->obd_process_conf = 1; if (ldt != NULL && d != NULL) { struct lu_env env; rc = lu_env_init(&env, ldt->ldt_ctx_tags); if (rc == 0) { rc = d->ld_ops->ldo_process_config(&env, d, data); lu_env_fini(&env); } } else { if (!obd->obd_type->typ_dt_ops->o_process_config) { CERROR("%s: no %s operation\n", obd->obd_name, __func__); RETURN(-EOPNOTSUPP); } rc = OBP(obd, process_config)(obd, datalen, data); } obd->obd_process_conf = 0; RETURN(rc); } static inline int obd_create(const struct lu_env *env, struct obd_export *exp, struct obdo *obdo) { int rc; ENTRY; rc = exp_check_ops(exp); if (rc) RETURN(rc); if (!exp->exp_obd->obd_type->typ_dt_ops->o_create) { CERROR("%s: no %s operation\n", (exp)->exp_obd->obd_name, __func__); RETURN(-ENOTSUPP); } rc = OBP(exp->exp_obd, create)(env, exp, obdo); RETURN(rc); } static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp, struct obdo *obdo) { int rc; ENTRY; rc = exp_check_ops(exp); if (rc) RETURN(rc); if (!exp->exp_obd->obd_type->typ_dt_ops->o_destroy) { CERROR("%s: no %s operation\n", (exp)->exp_obd->obd_name, __func__); RETURN(-ENOTSUPP); } rc = OBP(exp->exp_obd, destroy)(env, exp, obdo); RETURN(rc); } static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp, struct obdo *oa) { int rc; ENTRY; rc = exp_check_ops(exp); if (rc) RETURN(rc); if (!exp->exp_obd->obd_type->typ_dt_ops->o_getattr) { CERROR("%s: no %s operation\n", (exp)->exp_obd->obd_name, __func__); RETURN(-ENOTSUPP); } rc = OBP(exp->exp_obd, getattr)(env, exp, oa); RETURN(rc); } static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp, struct obdo *oa) { int rc; ENTRY; rc = exp_check_ops(exp); if (rc) RETURN(rc); if (!exp->exp_obd->obd_type->typ_dt_ops->o_setattr) { CERROR("%s: no %s operation\n", (exp)->exp_obd->obd_name, __func__); RETURN(-ENOTSUPP); } rc = OBP(exp->exp_obd, setattr)(env, exp, oa); RETURN(rc); } static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid, int priority) { struct obd_device *obd = imp->imp_obd; int rc; ENTRY; OBD_CHECK_DEV_ACTIVE(obd); if (!obd->obd_type || !obd->obd_type->typ_dt_ops->o_add_conn) { CERROR("%s: no %s operation\n", obd->obd_name, __func__); RETURN(-EOPNOTSUPP); } rc = OBP(obd, add_conn)(imp, uuid, priority); RETURN(rc); } static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid) { struct obd_device *obd = imp->imp_obd; int rc; ENTRY; OBD_CHECK_DEV_ACTIVE(obd); if (!obd->obd_type || !obd->obd_type->typ_dt_ops->o_del_conn) { CERROR("%s: no %s operation\n", obd->obd_name, __func__); RETURN(-EOPNOTSUPP); } rc = OBP(obd, del_conn)(imp, uuid); RETURN(rc); } static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp) { struct obd_uuid *uuid; ENTRY; if (!exp->exp_obd->obd_type || !exp->exp_obd->obd_type->typ_dt_ops->o_get_uuid) RETURN(NULL); uuid = OBP(exp->exp_obd, get_uuid)(exp); RETURN(uuid); } /** Create a new /a exp on device /a obd for the uuid /a cluuid * @param exp New export handle * @param d Connect data, supported flags are set, flags also understood * by obd are returned. */ static inline int obd_connect(const struct lu_env *env, struct obd_export **exp,struct obd_device *obd, struct obd_uuid *cluuid, struct obd_connect_data *data, void *localdata) { int rc; __u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition * check */ ENTRY; OBD_CHECK_DEV_ACTIVE(obd); if (!obd->obd_type || !obd->obd_type->typ_dt_ops->o_connect) { CERROR("%s: no %s operation\n", obd->obd_name, __func__); RETURN(-EOPNOTSUPP); } rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata); /* check that only subset is granted */ LASSERT(ergo(data != NULL, (data->ocd_connect_flags & ocf) == data->ocd_connect_flags)); RETURN(rc); } static inline int obd_reconnect(const struct lu_env *env, struct obd_export *exp, struct obd_device *obd, struct obd_uuid *cluuid, struct obd_connect_data *d, void *localdata) { int rc; __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition * check */ ENTRY; OBD_CHECK_DEV_ACTIVE(obd); if (!obd->obd_type || !obd->obd_type->typ_dt_ops->o_reconnect) RETURN(0); rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata); /* check that only subset is granted */ LASSERT(ergo(d != NULL, (d->ocd_connect_flags & ocf) == d->ocd_connect_flags)); RETURN(rc); } static inline int obd_disconnect(struct obd_export *exp) { int rc; ENTRY; rc = exp_check_ops(exp); if (rc) RETURN(rc); if (!exp->exp_obd->obd_type->typ_dt_ops->o_disconnect) { CERROR("%s: no %s operation\n", (exp)->exp_obd->obd_name, __func__); RETURN(-ENOTSUPP); } rc = OBP(exp->exp_obd, disconnect)(exp); RETURN(rc); } static inline int obd_fid_init(struct obd_device *obd, struct obd_export *exp, enum lu_cli_type type) { int rc; ENTRY; if (!obd->obd_type || !obd->obd_type->typ_dt_ops->o_fid_init) RETURN(0); rc = OBP(obd, fid_init)(obd, exp, type); RETURN(rc); } static inline int obd_fid_fini(struct obd_device *obd) { int rc; ENTRY; if (!obd->obd_type || !obd->obd_type->typ_dt_ops->o_fid_fini) RETURN(0); rc = OBP(obd, fid_fini)(obd); RETURN(rc); } static inline int obd_fid_alloc(const struct lu_env *env, struct obd_export *exp, struct lu_fid *fid, struct md_op_data *op_data) { int rc; ENTRY; rc = exp_check_ops(exp); if (rc) RETURN(rc); if (!exp->exp_obd->obd_type->typ_dt_ops->o_fid_alloc) { CERROR("%s: no %s operation\n", (exp)->exp_obd->obd_name, __func__); RETURN(-ENOTSUPP); } rc = OBP(exp->exp_obd, fid_alloc)(env, exp, fid, op_data); RETURN(rc); } static inline int obd_pool_new(struct obd_device *obd, char *poolname) { int rc; ENTRY; if (!obd->obd_type || !obd->obd_type->typ_dt_ops->o_pool_new) { CERROR("%s: no %s operation\n", obd->obd_name, __func__); RETURN(-EOPNOTSUPP); } rc = OBP(obd, pool_new)(obd, poolname); RETURN(rc); } static inline int obd_pool_del(struct obd_device *obd, char *poolname) { int rc; ENTRY; if (!obd->obd_type || !obd->obd_type->typ_dt_ops->o_pool_del) { CERROR("%s: no %s operation\n", obd->obd_name, __func__); RETURN(-EOPNOTSUPP); } rc = OBP(obd, pool_del)(obd, poolname); RETURN(rc); } static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname) { int rc; ENTRY; if (!obd->obd_type || !obd->obd_type->typ_dt_ops->o_pool_add) { CERROR("%s: no %s operation\n", obd->obd_name, __func__); RETURN(-EOPNOTSUPP); } rc = OBP(obd, pool_add)(obd, poolname, ostname); RETURN(rc); } static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname) { int rc; ENTRY; if (!obd->obd_type || !obd->obd_type->typ_dt_ops->o_pool_rem) { CERROR("%s: no %s operation\n", obd->obd_name, __func__); RETURN(-EOPNOTSUPP); } rc = OBP(obd, pool_rem)(obd, poolname, ostname); RETURN(rc); } static inline int obd_init_export(struct obd_export *exp) { int rc = 0; ENTRY; if (exp->exp_obd != NULL && exp->exp_obd->obd_type && OBP((exp)->exp_obd, init_export)) rc = OBP(exp->exp_obd, init_export)(exp); RETURN(rc); } static inline int obd_destroy_export(struct obd_export *exp) { ENTRY; if (exp->exp_obd != NULL && exp->exp_obd->obd_type && OBP(exp->exp_obd, destroy_export)) OBP(exp->exp_obd, destroy_export)(exp); RETURN(0); } /* @max_age is the oldest time in seconds that we accept using a cached data. * If the cache is older than @max_age we will get a new value from the * target. Use a value of 'ktime_get_seconds() + X' to guarantee freshness. */ static inline int obd_statfs_async(struct obd_export *exp, struct obd_info *oinfo, time64_t max_age, struct ptlrpc_request_set *rqset) { struct obd_device *obd; int rc = 0; ENTRY; if (exp == NULL || exp->exp_obd == NULL) RETURN(-EINVAL); obd = exp->exp_obd; if (!obd->obd_type || !obd->obd_type->typ_dt_ops->o_statfs) { rc = -EOPNOTSUPP; CERROR("%s: no statfs operation: rc = %d\n", obd->obd_name, rc); RETURN(rc); } CDEBUG(D_SUPER, "%s: age %lld, max_age %lld\n", obd->obd_name, obd->obd_osfs_age, max_age); rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset); RETURN(rc); } /* @max_age is the oldest time in seconds that we accept using a cached data. * If the cache is older than @max_age we will get a new value from the * target. Use a value of 'ktime_get_seconds() + X' to guarantee freshness. */ static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp, struct obd_statfs *osfs, time64_t max_age, __u32 flags) { struct obd_device *obd = exp->exp_obd; int rc = 0; ENTRY; if (unlikely(obd == NULL)) RETURN(-EINVAL); OBD_CHECK_DEV_ACTIVE(obd); if (unlikely(!obd->obd_type || !obd->obd_type->typ_dt_ops->o_statfs)) { CERROR("%s: no %s operation\n", obd->obd_name, __func__); RETURN(-EOPNOTSUPP); } CDEBUG(D_SUPER, "%s: age %lld, max_age %lld\n", obd->obd_name, obd->obd_osfs_age, max_age); /* ignore cache if aggregated isn't expected */ if (obd->obd_osfs_age < max_age || ((obd->obd_osfs.os_state & OS_STATE_SUM) && !(flags & OBD_STATFS_SUM))) { bool update_age = false; /* the RPC will block anyway, so avoid sending many at once */ rc = mutex_lock_interruptible(&obd->obd_dev_mutex); if (rc) RETURN(rc); if (obd->obd_osfs_age < max_age || ((obd->obd_osfs.os_state & OS_STATE_SUM) && !(flags & OBD_STATFS_SUM))) { rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags); update_age = true; } else { CDEBUG(D_SUPER, "%s: new %p cache blocks %llu/%llu objects %llu/%llu\n", obd->obd_name, &obd->obd_osfs, obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks, obd->obd_osfs.os_ffree, obd->obd_osfs.os_files); } if (rc == 0) { spin_lock(&obd->obd_osfs_lock); memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs)); if (update_age) obd->obd_osfs_age = ktime_get_seconds(); spin_unlock(&obd->obd_osfs_lock); } mutex_unlock(&obd->obd_dev_mutex); } else { CDEBUG(D_SUPER, "%s: use %p cache blocks %llu/%llu objects %llu/%llu\n", obd->obd_name, &obd->obd_osfs, obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks, obd->obd_osfs.os_ffree, obd->obd_osfs.os_files); spin_lock(&obd->obd_osfs_lock); memcpy(osfs, &obd->obd_osfs, sizeof(*osfs)); spin_unlock(&obd->obd_osfs_lock); } RETURN(rc); } static inline int obd_preprw(const struct lu_env *env, int cmd, struct obd_export *exp, struct obdo *oa, int objcount, struct obd_ioobj *obj, struct niobuf_remote *remote, int *pages, struct niobuf_local *local) { int rc; ENTRY; rc = exp_check_ops(exp); if (rc) RETURN(rc); if (!exp->exp_obd->obd_type->typ_dt_ops->o_preprw) { CERROR("%s: no %s operation\n", (exp)->exp_obd->obd_name, __func__); RETURN(-ENOTSUPP); } rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote, pages, local); RETURN(rc); } static inline int obd_commitrw(const struct lu_env *env, int cmd, struct obd_export *exp, struct obdo *oa, int objcount, struct obd_ioobj *obj, struct niobuf_remote *rnb, int pages, struct niobuf_local *local, const int orig_rc) { int rc; ENTRY; rc = exp_check_ops(exp); if (rc) RETURN(rc); if (!exp->exp_obd->obd_type->typ_dt_ops->o_commitrw) { CERROR("%s: no %s operation\n", (exp)->exp_obd->obd_name, __func__); RETURN(-ENOTSUPP); } rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj, rnb, pages, local, orig_rc); RETURN(rc); } static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp, int len, void *karg, void __user *uarg) { int rc; ENTRY; rc = exp_check_ops(exp); if (rc) RETURN(rc); if (!exp->exp_obd->obd_type->typ_dt_ops->o_iocontrol) { CERROR("%s: no %s operation\n", (exp)->exp_obd->obd_name, __func__); RETURN(-ENOTSUPP); } rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg); RETURN(rc); } static inline void obd_import_event(struct obd_device *obd, struct obd_import *imp, enum obd_import_event event) { ENTRY; if (!obd) { CERROR("NULL device\n"); EXIT; return; } if (obd->obd_set_up && OBP(obd, import_event)) OBP(obd, import_event)(obd, imp, event); EXIT; } static inline int obd_notify(struct obd_device *obd, struct obd_device *watched, enum obd_notify_event ev) { int rc; ENTRY; rc = obd_check_dev(obd); if (rc) return rc; if (!obd->obd_set_up) { CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name); RETURN(-EINVAL); } if (!OBP(obd, notify)) { CDEBUG(D_HA, "obd %s has no notify handler\n", obd->obd_name); RETURN(-ENOSYS); } rc = OBP(obd, notify)(obd, watched, ev); RETURN(rc); } static inline int obd_notify_observer(struct obd_device *observer, struct obd_device *observed, enum obd_notify_event ev) { int rc = 0; int rc2 = 0; struct obd_notify_upcall *onu; if (observer->obd_observer) rc = obd_notify(observer->obd_observer, observed, ev); /* * Also, call non-obd listener, if any */ onu = &observer->obd_upcall; if (onu->onu_upcall != NULL) rc2 = onu->onu_upcall(observer, observed, ev, onu->onu_owner); return rc ? rc : rc2; } static inline int obd_quotactl(struct obd_export *exp, struct obd_quotactl *oqctl) { int rc; ENTRY; rc = exp_check_ops(exp); if (rc) RETURN(rc); if (!exp->exp_obd->obd_type->typ_dt_ops->o_quotactl) { CERROR("%s: no %s operation\n", (exp)->exp_obd->obd_name, __func__); RETURN(-ENOTSUPP); } rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl); RETURN(rc); } static inline int obd_health_check(const struct lu_env *env, struct obd_device *obd) { /* returns: 0 on healthy * >0 on unhealthy + reason code/flag * however the only suppored reason == 1 right now * We'll need to define some better reasons * or flags in the future. * <0 on error */ int rc; ENTRY; /* NULL method is normal here */ if (obd == NULL || !obd->obd_type) { CERROR("cleaned up obd\n"); RETURN(-EOPNOTSUPP); } if (!obd->obd_set_up || obd->obd_stopping) RETURN(0); if (!OBP(obd, health_check)) RETURN(0); rc = OBP(obd, health_check)(env, obd); RETURN(rc); } static inline int obd_register_observer(struct obd_device *obd, struct obd_device *observer) { int rc; ENTRY; rc = obd_check_dev(obd); if (rc) return rc; down_write(&obd->obd_observer_link_sem); if (obd->obd_observer && observer) { up_write(&obd->obd_observer_link_sem); RETURN(-EALREADY); } obd->obd_observer = observer; up_write(&obd->obd_observer_link_sem); RETURN(0); } /* metadata helpers */ enum mps_stat_idx { LPROC_MD_CLOSE, LPROC_MD_CREATE, LPROC_MD_ENQUEUE, LPROC_MD_GETATTR, LPROC_MD_INTENT_LOCK, LPROC_MD_LINK, LPROC_MD_RENAME, LPROC_MD_SETATTR, LPROC_MD_FSYNC, LPROC_MD_READ_PAGE, LPROC_MD_UNLINK, LPROC_MD_SETXATTR, LPROC_MD_GETXATTR, LPROC_MD_INTENT_GETATTR_ASYNC, LPROC_MD_REVALIDATE_LOCK, LPROC_MD_LAST_OPC, }; static inline int md_get_root(struct obd_export *exp, const char *fileset, struct lu_fid *fid) { int rc; rc = exp_check_ops(exp); if (rc) return rc; return MDP(exp->exp_obd, get_root)(exp, fileset, fid); } static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data, struct ptlrpc_request **request) { int rc; rc = exp_check_ops(exp); if (rc) return rc; lprocfs_counter_incr(exp->exp_obd->obd_md_stats, LPROC_MD_GETATTR); return MDP(exp->exp_obd, getattr)(exp, op_data, request); } static inline int md_null_inode(struct obd_export *exp, const struct lu_fid *fid) { int rc; rc = exp_check_ops(exp); if (rc) return rc; return MDP(exp->exp_obd, null_inode)(exp, fid); } static inline int md_close(struct obd_export *exp, struct md_op_data *op_data, struct md_open_data *mod, struct ptlrpc_request **request) { int rc; rc = exp_check_ops(exp); if (rc) return rc; lprocfs_counter_incr(exp->exp_obd->obd_md_stats, LPROC_MD_CLOSE); return MDP(exp->exp_obd, close)(exp, op_data, mod, request); } static inline int md_create(struct obd_export *exp, struct md_op_data *op_data, const void *data, size_t datalen, umode_t mode, uid_t uid, gid_t gid, cfs_cap_t cap_effective, __u64 rdev, struct ptlrpc_request **request) { int rc; rc = exp_check_ops(exp); if (rc) return rc; lprocfs_counter_incr(exp->exp_obd->obd_md_stats, LPROC_MD_CREATE); return MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode, uid, gid, cap_effective, rdev, request); } static inline int md_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo, const union ldlm_policy_data *policy, struct md_op_data *op_data, struct lustre_handle *lockh, __u64 extra_lock_flags) { int rc; rc = exp_check_ops(exp); if (rc) return rc; lprocfs_counter_incr(exp->exp_obd->obd_md_stats, LPROC_MD_ENQUEUE); return MDP(exp->exp_obd, enqueue)(exp, einfo, policy, op_data, lockh, extra_lock_flags); } static inline int md_getattr_name(struct obd_export *exp, struct md_op_data *op_data, struct ptlrpc_request **request) { int rc; rc = exp_check_ops(exp); if (rc) return rc; return MDP(exp->exp_obd, getattr_name)(exp, op_data, request); } static inline int md_intent_lock(struct obd_export *exp, struct md_op_data *op_data, struct lookup_intent *it, struct ptlrpc_request **reqp, ldlm_blocking_callback cb_blocking, __u64 extra_lock_flags) { int rc; rc = exp_check_ops(exp); if (rc) return rc; lprocfs_counter_incr(exp->exp_obd->obd_md_stats, LPROC_MD_INTENT_LOCK); return MDP(exp->exp_obd, intent_lock)(exp, op_data, it, reqp, cb_blocking, extra_lock_flags); } static inline int md_link(struct obd_export *exp, struct md_op_data *op_data, struct ptlrpc_request **request) { int rc; rc = exp_check_ops(exp); if (rc) return rc; lprocfs_counter_incr(exp->exp_obd->obd_md_stats, LPROC_MD_LINK); return MDP(exp->exp_obd, link)(exp, op_data, request); } static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data, const char *old_name, size_t oldlen, const char *new_name, size_t newlen, struct ptlrpc_request **request) { int rc; rc = exp_check_ops(exp); if (rc) return rc; lprocfs_counter_incr(exp->exp_obd->obd_md_stats, LPROC_MD_RENAME); return MDP(exp->exp_obd, rename)(exp, op_data, old_name, oldlen, new_name, newlen, request); } static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data, void *ea, size_t ealen, struct ptlrpc_request **request) { int rc; rc = exp_check_ops(exp); if (rc) return rc; lprocfs_counter_incr(exp->exp_obd->obd_md_stats, LPROC_MD_SETATTR); return MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen, request); } static inline int md_fsync(struct obd_export *exp, const struct lu_fid *fid, struct ptlrpc_request **request) { int rc; rc = exp_check_ops(exp); if (rc) return rc; lprocfs_counter_incr(exp->exp_obd->obd_md_stats, LPROC_MD_FSYNC); return MDP(exp->exp_obd, fsync)(exp, fid, request); } /* FLR: resync mirrored files. */ static inline int md_file_resync(struct obd_export *exp, struct md_op_data *data) { int rc; rc = exp_check_ops(exp); if (rc) return rc; return MDP(exp->exp_obd, file_resync)(exp, data); } static inline int md_read_page(struct obd_export *exp, struct md_op_data *op_data, struct md_callback *cb_op, __u64 hash_offset, struct page **ppage) { int rc; rc = exp_check_ops(exp); if (rc) return rc; lprocfs_counter_incr(exp->exp_obd->obd_md_stats, LPROC_MD_READ_PAGE); return MDP(exp->exp_obd, read_page)(exp, op_data, cb_op, hash_offset, ppage); } static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data, struct ptlrpc_request **request) { int rc; rc = exp_check_ops(exp); if (rc) return rc; lprocfs_counter_incr(exp->exp_obd->obd_md_stats, LPROC_MD_UNLINK); return MDP(exp->exp_obd, unlink)(exp, op_data, request); } static inline int md_get_lustre_md(struct obd_export *exp, struct ptlrpc_request *req, struct obd_export *dt_exp, struct obd_export *md_exp, struct lustre_md *md) { int rc; rc = exp_check_ops(exp); if (rc) return rc; return MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md); } static inline int md_free_lustre_md(struct obd_export *exp, struct lustre_md *md) { int rc; rc = exp_check_ops(exp); if (rc) return rc; return MDP(exp->exp_obd, free_lustre_md)(exp, md); } static inline int md_merge_attr(struct obd_export *exp, const struct lmv_stripe_md *lsm, struct cl_attr *attr, ldlm_blocking_callback cb) { int rc; rc = exp_check_ops(exp); if (rc) return rc; return MDP(exp->exp_obd, merge_attr)(exp, lsm, attr, cb); } static inline int md_setxattr(struct obd_export *exp, const struct lu_fid *fid, u64 obd_md_valid, const char *name, const void *value, size_t value_size, unsigned int xattr_flags, u32 suppgid, struct ptlrpc_request **req) { int rc; rc = exp_check_ops(exp); if (rc) return rc; lprocfs_counter_incr(exp->exp_obd->obd_md_stats, LPROC_MD_SETXATTR); return MDP(exp->exp_obd, setxattr)(exp, fid, obd_md_valid, name, value, value_size, xattr_flags, suppgid, req); } static inline int md_getxattr(struct obd_export *exp, const struct lu_fid *fid, u64 obd_md_valid, const char *name, size_t buf_size, struct ptlrpc_request **req) { int rc; rc = exp_check_ops(exp); if (rc) return rc; lprocfs_counter_incr(exp->exp_obd->obd_md_stats, LPROC_MD_GETXATTR); return MDP(exp->exp_obd, getxattr)(exp, fid, obd_md_valid, name, buf_size, req); } static inline int md_set_open_replay_data(struct obd_export *exp, struct obd_client_handle *och, struct lookup_intent *it) { int rc; rc = exp_check_ops(exp); if (rc) return rc; return MDP(exp->exp_obd, set_open_replay_data)(exp, och, it); } static inline int md_clear_open_replay_data(struct obd_export *exp, struct obd_client_handle *och) { int rc; rc = exp_check_ops(exp); if (rc) return rc; return MDP(exp->exp_obd, clear_open_replay_data)(exp, och); } static inline int md_set_lock_data(struct obd_export *exp, const struct lustre_handle *lockh, void *data, __u64 *bits) { int rc; rc = exp_check_ops(exp); if (rc) return rc; return MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits); } static inline int md_cancel_unused(struct obd_export *exp, const struct lu_fid *fid, union ldlm_policy_data *policy, enum ldlm_mode mode, enum ldlm_cancel_flags cancel_flags, void *opaque) { int rc; rc = exp_check_ops(exp); if (rc) return rc; return MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode, cancel_flags, opaque); } static inline enum ldlm_mode md_lock_match(struct obd_export *exp, __u64 flags, const struct lu_fid *fid, enum ldlm_type type, union ldlm_policy_data *policy, enum ldlm_mode mode, struct lustre_handle *lockh) { int rc; rc = exp_check_ops(exp); if (rc) return rc; return MDP(exp->exp_obd, lock_match)(exp, flags, fid, type, policy, mode, lockh); } static inline int md_init_ea_size(struct obd_export *exp, __u32 ea_size, __u32 def_ea_size) { int rc; rc = exp_check_ops(exp); if (rc) return rc; return MDP(exp->exp_obd, init_ea_size)(exp, ea_size, def_ea_size); } static inline int md_intent_getattr_async(struct obd_export *exp, struct md_enqueue_info *minfo) { int rc; rc = exp_check_ops(exp); if (rc) return rc; lprocfs_counter_incr(exp->exp_obd->obd_md_stats, LPROC_MD_INTENT_GETATTR_ASYNC); return MDP(exp->exp_obd, intent_getattr_async)(exp, minfo); } static inline int md_revalidate_lock(struct obd_export *exp, struct lookup_intent *it, struct lu_fid *fid, __u64 *bits) { int rc; rc = exp_check_ops(exp); if (rc) return rc; lprocfs_counter_incr(exp->exp_obd->obd_md_stats, LPROC_MD_REVALIDATE_LOCK); return MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits); } static inline int md_get_fid_from_lsm(struct obd_export *exp, const struct lmv_stripe_md *lsm, const char *name, int namelen, struct lu_fid *fid) { int rc; rc = exp_check_ops(exp); if (rc) return rc; return MDP(exp->exp_obd, get_fid_from_lsm)(exp, lsm, name, namelen, fid); } /* Unpack an MD struct from disk to in-memory format. * Returns +ve size of unpacked MD (0 for free), or -ve error. * * If *plsm != NULL and lmm == NULL then *lsm will be freed. * If *plsm == NULL then it will be allocated. */ static inline int md_unpackmd(struct obd_export *exp, struct lmv_stripe_md **plsm, const union lmv_mds_md *lmm, size_t lmm_size) { int rc; rc = exp_check_ops(exp); if (rc) return rc; return MDP(exp->exp_obd, unpackmd)(exp, plsm, lmm, lmm_size); } static inline int md_rmfid(struct obd_export *exp, struct fid_array *fa, int *rcs, struct ptlrpc_request_set *set) { int rc; rc = exp_check_ops(exp); if (rc) return rc; return MDP(exp->exp_obd, rmfid)(exp, fa, rcs, set); } /* OBD Metadata Support */ extern int obd_init_caches(void); extern void obd_cleanup_caches(void); typedef int (*register_lwp_cb)(void *data); struct lwp_register_item { struct obd_export **lri_exp; register_lwp_cb lri_cb_func; void *lri_cb_data; struct list_head lri_list; atomic_t lri_ref; char lri_name[MTI_NAME_MAXLEN]; }; /* I'm as embarrassed about this as you are. * * // XXX do not look into _superhack with remaining eye * // XXX if this were any uglier, I'd get my own show on MTV */ extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c); /* obd_mount.c */ #ifdef HAVE_SERVER_SUPPORT int lustre_register_lwp_item(const char *lwpname, struct obd_export **exp, register_lwp_cb cb_func, void *cb_data); void lustre_deregister_lwp_item(struct obd_export **exp); struct obd_export *lustre_find_lwp_by_index(const char *dev, __u32 idx); void lustre_notify_lwp_list(struct obd_export *exp); int tgt_name2lwp_name(const char *tgt_name, char *lwp_name, int len, __u32 idx); #endif /* HAVE_SERVER_SUPPORT */ int lustre_register_fs(void); int lustre_unregister_fs(void); int lustre_check_exclusion(struct super_block *sb, char *svname); /* lustre_peer.c */ int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index); int class_add_uuid(const char *uuid, __u64 nid); int class_del_uuid (const char *uuid); int class_check_uuid(struct obd_uuid *uuid, __u64 nid); /* class_obd.c */ extern char obd_jobid_name[]; /* statfs_pack.c */ struct kstatfs; void statfs_pack(struct obd_statfs *osfs, struct kstatfs *sfs); void statfs_unpack(struct kstatfs *sfs, struct obd_statfs *osfs); /* root squash info */ struct root_squash_info { uid_t rsi_uid; gid_t rsi_gid; struct list_head rsi_nosquash_nids; spinlock_t rsi_lock; }; int server_name2index(const char *svname, __u32 *idx, const char **endptr); /* linux-module.c */ extern struct miscdevice obd_psdev; int obd_ioctl_getdata(char **buf, int *len, void __user *arg); int class_procfs_init(void); int class_procfs_clean(void); extern void obd_heat_add(struct obd_heat_instance *instance, unsigned int time_second, __u64 count, unsigned int weight, unsigned int period_second); extern void obd_heat_decay(struct obd_heat_instance *instance, __u64 time_second, unsigned int weight, unsigned int period_second); extern __u64 obd_heat_get(struct obd_heat_instance *instance, unsigned int time_second, unsigned int weight, unsigned int period_second); extern void obd_heat_clear(struct obd_heat_instance *instance, int count); #endif /* __LINUX_OBD_CLASS_H */