/* * 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 (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * * Copyright (c) 2011, Whamcloud, Inc. */ /* * 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 #ifndef __KERNEL__ # include #endif #include #include #include #include #include #include #include #if defined(__linux__) #include #elif defined(__APPLE__) #include #elif defined(__WINNT__) #include #else #error Unsupported operating system. #endif #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_PTLRPCD 0x0004 /* requests will be sent via ptlrpcd * instead of a specific set. This * means that we cannot rely on the set * interpret routine to be called. * lov_statfs_fini() must thus be called * by the request interpret routine */ #define OBD_FL_PUNCH 0x00000001 /* To indicate it is punch operation */ /* OBD Device Declarations */ extern struct obd_device *obd_devs[MAX_OBD_DEVICES]; extern cfs_rwlock_t obd_dev_lock; /* OBD Operations Declarations */ extern struct obd_device *class_conn2obd(struct lustre_handle *); extern struct obd_device *class_exp2obd(struct obd_export *); extern int class_handle_ioctl(unsigned int cmd, unsigned long arg); extern int lustre_get_jobid(char *jobid); struct lu_device_type; /* genops.c */ struct obd_export *class_conn2export(struct lustre_handle *); int class_register_type(struct obd_ops *, struct md_ops *, struct lprocfs_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); void class_release_dev(struct obd_device *obd); 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 * typ_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 class_notify_sptlrpc_conf(const char *fsname, int namelen); char *obd_export_nid2str(struct obd_export *exp); 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, 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); int kuc_ispayload(void *p); void *kuc_alloc(int payload_len, int transport, int type); void kuc_free(void *p, int payload_len); struct llog_handle; struct llog_rec_hdr; typedef int (*llog_cb_t)(const struct lu_env *, struct llog_handle *, struct llog_rec_hdr *, void *); /* obd_config.c */ struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg, const char *new_name); int class_process_config(struct lustre_cfg *lcfg); int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars, struct lustre_cfg *lcfg, void *data); 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); 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 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); int class_add_uuid(const char *uuid, __u64 nid); /*obdecho*/ #ifdef LPROCFS extern void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars); #else static inline void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars) { memset(lvars, 0, sizeof(*lvars)); } #endif #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_COMPAT146 0x08 /* Allow old-style logs */ #define CFG_F_EXCLUDE 0x10 /* OST exclusion list */ /* Passed as data param to class_config_parse_llog */ struct config_llog_instance { char *cfg_obdname; void *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; }; int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt, char *name, struct config_llog_instance *cfg); int class_config_dump_llog(const struct lu_env *env, struct llog_ctxt *ctxt, char *name, struct config_llog_instance *cfg); enum { CONFIG_T_CONFIG = 0, CONFIG_T_SPTLRPC = 1, CONFIG_T_RECOVER = 2, CONFIG_T_MAX = 3 }; /* list of active configuration logs */ struct config_llog_data { struct ldlm_res_id cld_resid; struct config_llog_instance cld_cfg; cfs_list_t cld_list_chain; cfs_atomic_t cld_refcount; struct config_llog_data *cld_sptlrpc;/* depended sptlrpc log */ struct config_llog_data *cld_recover; /* imperative recover log */ struct obd_export *cld_mgcexp; cfs_mutex_t 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 { cfs_list_t lp_list; char *lp_profile; char *lp_dt; char *lp_md; }; struct lustre_profile *class_get_profile(const char * prof); void class_del_profile(const char *prof); 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_get(exp) \ ({ \ cfs_atomic_inc(&(exp)->exp_rpc_count); \ CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \ (exp), cfs_atomic_read(&(exp)->exp_rpc_count)); \ class_export_get(exp); \ }) #define class_export_rpc_put(exp) \ ({ \ LASSERT_ATOMIC_POS(&exp->exp_rpc_count); \ cfs_atomic_dec(&(exp)->exp_rpc_count); \ CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \ (exp), cfs_atomic_read(&(exp)->exp_rpc_count)); \ class_export_put(exp); \ }) #define class_export_lock_get(exp, lock) \ ({ \ cfs_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), cfs_atomic_read(&(exp)->exp_locks_count)); \ class_export_get(exp); \ }) #define class_export_lock_put(exp, lock) \ ({ \ LASSERT_ATOMIC_POS(&exp->exp_locks_count); \ cfs_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), cfs_atomic_read(&(exp)->exp_locks_count)); \ class_export_put(exp); \ }) #define class_export_cb_get(exp) \ ({ \ cfs_atomic_inc(&(exp)->exp_cb_count); \ CDEBUG(D_INFO, "callback GETting export %p : new cb_count %d\n",\ (exp), cfs_atomic_read(&(exp)->exp_cb_count)); \ class_export_get(exp); \ }) #define class_export_cb_put(exp) \ ({ \ LASSERT_ATOMIC_POS(&exp->exp_cb_count); \ cfs_atomic_dec(&(exp)->exp_cb_count); \ CDEBUG(D_INFO, "callback PUTting export %p : new cb_count %d\n",\ (exp), cfs_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); 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); struct obd_type *class_search_type(const char *name); struct obd_type *class_get_type(const char *name); 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); 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 void obdo_cpy_md(struct obdo *dst, struct obdo *src, obd_flag valid); void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj); void obdo_from_iattr(struct obdo *oa, struct iattr *attr, unsigned int ia_valid); void iattr_from_obdo(struct iattr *attr, struct obdo *oa, obd_flag valid); void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, obd_flag valid); void obdo_from_md(struct obdo *oa, struct md_op_data *op_data, unsigned int valid); #define OBT(dev) (dev)->obd_type #define OBP(dev, op) (dev)->obd_type->typ_dt_ops->o_ ## op #define MDP(dev, op) (dev)->obd_type->typ_md_ops->m_ ## op #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op /* Ensure obd_setup: used for cleanup which must be called while obd is stopping */ #define OBD_CHECK_DEV(obd) \ do { \ if (!(obd)) { \ CERROR("NULL device\n"); \ RETURN(-ENODEV); \ } \ } while (0) /* ensure obd_setup and !obd_stopping */ #define OBD_CHECK_DEV_ACTIVE(obd) \ do { \ OBD_CHECK_DEV(obd); \ if (!(obd)->obd_set_up || (obd)->obd_stopping) { \ CERROR("Device %d not setup\n", \ (obd)->obd_minor); \ RETURN(-ENODEV); \ } \ } while (0) #ifdef LPROCFS #define OBD_COUNTER_OFFSET(op) \ ((offsetof(struct obd_ops, o_ ## op) - \ offsetof(struct obd_ops, o_iocontrol)) \ / sizeof(((struct obd_ops *)(0))->o_iocontrol)) #define OBD_COUNTER_INCREMENT(obdx, op) \ if ((obdx)->obd_stats != NULL) { \ unsigned int coffset; \ coffset = (unsigned int)((obdx)->obd_cntr_base) + \ OBD_COUNTER_OFFSET(op); \ LASSERT(coffset < (obdx)->obd_stats->ls_num); \ lprocfs_counter_incr((obdx)->obd_stats, coffset); \ } #define EXP_COUNTER_INCREMENT(export, op) \ if ((export)->exp_obd->obd_stats != NULL) { \ unsigned int coffset; \ coffset = (unsigned int)((export)->exp_obd->obd_cntr_base) + \ OBD_COUNTER_OFFSET(op); \ LASSERT(coffset < (export)->exp_obd->obd_stats->ls_num); \ lprocfs_counter_incr((export)->exp_obd->obd_stats, coffset); \ if ((export)->exp_nid_stats != NULL && \ (export)->exp_nid_stats->nid_stats != NULL) \ lprocfs_counter_incr( \ (export)->exp_nid_stats->nid_stats, coffset);\ } #define MD_COUNTER_OFFSET(op) \ ((offsetof(struct md_ops, m_ ## op) - \ offsetof(struct md_ops, m_getstatus)) \ / sizeof(((struct md_ops *)(0))->m_getstatus)) #define MD_COUNTER_INCREMENT(obdx, op) \ if ((obd)->md_stats != NULL) { \ unsigned int coffset; \ coffset = (unsigned int)((obdx)->md_cntr_base) + \ MD_COUNTER_OFFSET(op); \ LASSERT(coffset < (obdx)->md_stats->ls_num); \ lprocfs_counter_incr((obdx)->md_stats, coffset); \ } #define EXP_MD_COUNTER_INCREMENT(export, op) \ if ((export)->exp_obd->obd_stats != NULL) { \ unsigned int coffset; \ coffset = (unsigned int)((export)->exp_obd->md_cntr_base) + \ MD_COUNTER_OFFSET(op); \ LASSERT(coffset < (export)->exp_obd->md_stats->ls_num); \ lprocfs_counter_incr((export)->exp_obd->md_stats, coffset); \ if ((export)->exp_md_stats != NULL) \ lprocfs_counter_incr( \ (export)->exp_md_stats, coffset); \ } #else #define OBD_COUNTER_OFFSET(op) #define OBD_COUNTER_INCREMENT(obd, op) #define EXP_COUNTER_INCREMENT(exp, op) #define MD_COUNTER_INCREMENT(obd, op) #define EXP_MD_COUNTER_INCREMENT(exp, op) #endif 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); } #define OBD_CHECK_MD_OP(obd, op, err) \ do { \ if (!OBT(obd) || !MDP((obd), op)) { \ if (err) \ CERROR("md_" #op ": dev %s/%d no operation\n", \ obd->obd_name, obd->obd_minor); \ RETURN(err); \ } \ } while (0) #define EXP_CHECK_MD_OP(exp, op) \ do { \ if ((exp) == NULL) { \ CERROR("obd_" #op ": NULL export\n"); \ RETURN(-ENODEV); \ } \ if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \ CERROR("obd_" #op ": cleaned up obd\n"); \ RETURN(-EOPNOTSUPP); \ } \ if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \ CERROR("obd_" #op ": dev %s/%d no operation\n", \ (exp)->exp_obd->obd_name, \ (exp)->exp_obd->obd_minor); \ RETURN(-EOPNOTSUPP); \ } \ } while (0) #define OBD_CHECK_DT_OP(obd, op, err) \ do { \ if (!OBT(obd) || !OBP((obd), op)) { \ if (err) \ CERROR("obd_" #op ": dev %d no operation\n", \ obd->obd_minor); \ RETURN(err); \ } \ } while (0) #define EXP_CHECK_DT_OP(exp, op) \ do { \ if ((exp) == NULL) { \ CERROR("obd_" #op ": NULL export\n"); \ RETURN(-ENODEV); \ } \ if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \ CERROR("obd_" #op ": cleaned up obd\n"); \ RETURN(-EOPNOTSUPP); \ } \ if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \ CERROR("obd_" #op ": dev %d no operation\n", \ (exp)->exp_obd->obd_minor); \ RETURN(-EOPNOTSUPP); \ } \ } while (0) #define CTXT_CHECK_OP(ctxt, op, err) \ do { \ if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \ if (err) \ CERROR("lop_" #op ": dev %d no operation\n", \ ctxt->loc_obd->obd_minor); \ RETURN(err); \ } \ } while (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, struct lov_stripe_md *lsm) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, get_info); EXP_COUNTER_INCREMENT(exp, get_info); rc = OBP(exp->exp_obd, get_info)(env, exp, keylen, key, vallen, val, lsm); RETURN(rc); } static inline int obd_set_info_async(const struct lu_env *env, struct obd_export *exp, obd_count keylen, void *key, obd_count vallen, void *val, struct ptlrpc_request_set *set) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, set_info_async); EXP_COUNTER_INCREMENT(exp, set_info_async); 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. */ #define DECLARE_LU_VARS(ldt, d) \ struct lu_device_type *ldt; \ struct lu_device *d static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg) { int rc; DECLARE_LU_VARS(ldt, d); ENTRY; ldt = obd->obd_type->typ_lu; if (ldt != NULL) { struct lu_context session_ctx; struct lu_env env; lu_context_init(&session_ctx, LCT_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 { OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP); OBD_COUNTER_INCREMENT(obd, setup); rc = OBP(obd, setup)(obd, cfg); } RETURN(rc); } static inline int obd_precleanup(struct obd_device *obd, enum obd_cleanup_stage cleanup_stage) { int rc; DECLARE_LU_VARS(ldt, d); ENTRY; OBD_CHECK_DEV(obd); ldt = obd->obd_type->typ_lu; d = obd->obd_lu_dev; if (ldt != NULL && d != NULL) { if (cleanup_stage == OBD_CLEANUP_EXPORTS) { struct lu_env env; rc = lu_env_init(&env, ldt->ldt_ctx_tags); if (rc == 0) { ldt->ldt_ops->ldto_device_fini(&env, d); lu_env_fini(&env); } } } OBD_CHECK_DT_OP(obd, precleanup, 0); OBD_COUNTER_INCREMENT(obd, precleanup); rc = OBP(obd, precleanup)(obd, cleanup_stage); RETURN(rc); } static inline int obd_cleanup(struct obd_device *obd) { int rc; DECLARE_LU_VARS(ldt, d); ENTRY; OBD_CHECK_DEV(obd); ldt = obd->obd_type->typ_lu; d = obd->obd_lu_dev; 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; } } OBD_CHECK_DT_OP(obd, cleanup, 0); OBD_COUNTER_INCREMENT(obd, cleanup); 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. */ cfs_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); if (imp->imp_rq_pool) { ptlrpc_free_rq_pool(imp->imp_rq_pool); imp->imp_rq_pool = NULL; } client_destroy_import(imp); obd->u.cli.cl_import = NULL; } cfs_up_write(&obd->u.cli.cl_sem); EXIT; } static inline int obd_process_config(struct obd_device *obd, int datalen, void *data) { int rc; DECLARE_LU_VARS(ldt, d); ENTRY; OBD_CHECK_DEV(obd); obd->obd_process_conf = 1; ldt = obd->obd_type->typ_lu; d = obd->obd_lu_dev; 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 { OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP); rc = OBP(obd, process_config)(obd, datalen, data); } OBD_COUNTER_INCREMENT(obd, process_config); obd->obd_process_conf = 0; RETURN(rc); } /* Pack an in-memory MD struct for storage on disk. * Returns +ve size of packed MD (0 for free), or -ve error. * * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL). * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed. * If @*disk_tgt == NULL, it will be allocated */ static inline int obd_packmd(struct obd_export *exp, struct lov_mds_md **disk_tgt, struct lov_stripe_md *mem_src) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, packmd); EXP_COUNTER_INCREMENT(exp, packmd); rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src); RETURN(rc); } static inline int obd_size_diskmd(struct obd_export *exp, struct lov_stripe_md *mem_src) { return obd_packmd(exp, NULL, mem_src); } /* helper functions */ static inline int obd_alloc_diskmd(struct obd_export *exp, struct lov_mds_md **disk_tgt) { LASSERT(disk_tgt); LASSERT(*disk_tgt == NULL); return obd_packmd(exp, disk_tgt, NULL); } static inline int obd_free_diskmd(struct obd_export *exp, struct lov_mds_md **disk_tgt) { LASSERT(disk_tgt); LASSERT(*disk_tgt); return obd_packmd(exp, disk_tgt, NULL); } /* Unpack an MD struct from disk to in-memory format. * Returns +ve size of unpacked MD (0 for free), or -ve error. * * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL). * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed. * If @*mem_tgt == NULL, it will be allocated */ static inline int obd_unpackmd(struct obd_export *exp, struct lov_stripe_md **mem_tgt, struct lov_mds_md *disk_src, int disk_len) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, unpackmd); EXP_COUNTER_INCREMENT(exp, unpackmd); rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len); RETURN(rc); } /* helper functions */ static inline int obd_alloc_memmd(struct obd_export *exp, struct lov_stripe_md **mem_tgt) { LASSERT(mem_tgt); LASSERT(*mem_tgt == NULL); return obd_unpackmd(exp, mem_tgt, NULL, 0); } static inline int obd_free_memmd(struct obd_export *exp, struct lov_stripe_md **mem_tgt) { int rc; LASSERT(mem_tgt); LASSERT(*mem_tgt); rc = obd_unpackmd(exp, mem_tgt, NULL, 0); *mem_tgt = NULL; return rc; } static inline int obd_precreate(struct obd_export *exp) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, precreate); OBD_COUNTER_INCREMENT(exp->exp_obd, precreate); rc = OBP(exp->exp_obd, precreate)(exp); RETURN(rc); } static inline int obd_create_async(struct obd_export *exp, struct obd_info *oinfo, struct lov_stripe_md **ea, struct obd_trans_info *oti) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, create_async); EXP_COUNTER_INCREMENT(exp, create_async); rc = OBP(exp->exp_obd, create_async)(exp, oinfo, ea, oti); RETURN(rc); } static inline int obd_create(const struct lu_env *env, struct obd_export *exp, struct obdo *obdo, struct lov_stripe_md **ea, struct obd_trans_info *oti) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, create); EXP_COUNTER_INCREMENT(exp, create); rc = OBP(exp->exp_obd, create)(env, exp, obdo, ea, oti); RETURN(rc); } static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp, struct obdo *obdo, struct lov_stripe_md *ea, struct obd_trans_info *oti, struct obd_export *md_exp, void *capa) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, destroy); EXP_COUNTER_INCREMENT(exp, destroy); rc = OBP(exp->exp_obd, destroy)(env, exp, obdo, ea, oti, md_exp, capa); RETURN(rc); } static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp, struct obd_info *oinfo) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, getattr); EXP_COUNTER_INCREMENT(exp, getattr); rc = OBP(exp->exp_obd, getattr)(env, exp, oinfo); RETURN(rc); } static inline int obd_getattr_async(struct obd_export *exp, struct obd_info *oinfo, struct ptlrpc_request_set *set) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, getattr_async); EXP_COUNTER_INCREMENT(exp, getattr_async); rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set); RETURN(rc); } static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp, struct obd_info *oinfo, struct obd_trans_info *oti) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, setattr); EXP_COUNTER_INCREMENT(exp, setattr); rc = OBP(exp->exp_obd, setattr)(env, exp, oinfo, oti); RETURN(rc); } /* This performs all the requests set init/wait/destroy actions. */ static inline int obd_setattr_rqset(struct obd_export *exp, struct obd_info *oinfo, struct obd_trans_info *oti) { struct ptlrpc_request_set *set = NULL; int rc; ENTRY; EXP_CHECK_DT_OP(exp, setattr_async); EXP_COUNTER_INCREMENT(exp, setattr_async); set = ptlrpc_prep_set(); if (set == NULL) RETURN(-ENOMEM); rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set); if (rc == 0) rc = ptlrpc_set_wait(set); ptlrpc_set_destroy(set); RETURN(rc); } /* This adds all the requests into @set if @set != NULL, otherwise all requests are sent asynchronously without waiting for response. */ static inline int obd_setattr_async(struct obd_export *exp, struct obd_info *oinfo, struct obd_trans_info *oti, struct ptlrpc_request_set *set) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, setattr_async); EXP_COUNTER_INCREMENT(exp, setattr_async); rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set); 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); OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP); OBD_COUNTER_INCREMENT(obd, add_conn); 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); OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP); OBD_COUNTER_INCREMENT(obd, del_conn); 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; OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL); EXP_COUNTER_INCREMENT(exp, get_uuid); 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); OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP); OBD_COUNTER_INCREMENT(obd, connect); 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); OBD_CHECK_DT_OP(obd, reconnect, 0); OBD_COUNTER_INCREMENT(obd, reconnect); 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; EXP_CHECK_DT_OP(exp, disconnect); EXP_COUNTER_INCREMENT(exp, disconnect); rc = OBP(exp->exp_obd, disconnect)(exp); RETURN(rc); } static inline int obd_fid_init(struct obd_export *exp) { int rc; ENTRY; OBD_CHECK_DT_OP(exp->exp_obd, fid_init, 0); EXP_COUNTER_INCREMENT(exp, fid_init); rc = OBP(exp->exp_obd, fid_init)(exp); RETURN(rc); } static inline int obd_fid_fini(struct obd_export *exp) { int rc; ENTRY; OBD_CHECK_DT_OP(exp->exp_obd, fid_fini, 0); EXP_COUNTER_INCREMENT(exp, fid_fini); rc = OBP(exp->exp_obd, fid_fini)(exp); RETURN(rc); } static inline int obd_fid_alloc(struct obd_export *exp, struct lu_fid *fid, struct md_op_data *op_data) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, fid_alloc); EXP_COUNTER_INCREMENT(exp, fid_alloc); rc = OBP(exp->exp_obd, fid_alloc)(exp, fid, op_data); RETURN(rc); } static inline int obd_fid_delete(struct obd_export *exp, const struct lu_fid *fid) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, fid_delete); EXP_COUNTER_INCREMENT(exp, fid_delete); rc = OBP(exp->exp_obd, fid_delete)(exp, fid); RETURN(rc); } static inline int obd_ping(const struct lu_env *env, struct obd_export *exp) { int rc; ENTRY; OBD_CHECK_DT_OP(exp->exp_obd, ping, 0); EXP_COUNTER_INCREMENT(exp, ping); rc = OBP(exp->exp_obd, ping)(env, exp); RETURN(rc); } static inline int obd_pool_new(struct obd_device *obd, char *poolname) { int rc; ENTRY; OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP); OBD_COUNTER_INCREMENT(obd, pool_new); rc = OBP(obd, pool_new)(obd, poolname); RETURN(rc); } static inline int obd_pool_del(struct obd_device *obd, char *poolname) { int rc; ENTRY; OBD_CHECK_DT_OP(obd, pool_del, -EOPNOTSUPP); OBD_COUNTER_INCREMENT(obd, pool_del); 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; OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP); OBD_COUNTER_INCREMENT(obd, pool_add); 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; OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP); OBD_COUNTER_INCREMENT(obd, pool_rem); rc = OBP(obd, pool_rem)(obd, poolname, ostname); RETURN(rc); } static inline void obd_getref(struct obd_device *obd) { ENTRY; if (OBT(obd) && OBP(obd, getref)) { OBD_COUNTER_INCREMENT(obd, getref); OBP(obd, getref)(obd); } EXIT; } static inline void obd_putref(struct obd_device *obd) { ENTRY; if (OBT(obd) && OBP(obd, putref)) { OBD_COUNTER_INCREMENT(obd, putref); OBP(obd, putref)(obd); } EXIT; } static inline int obd_init_export(struct obd_export *exp) { int rc = 0; ENTRY; if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) && 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 && OBT((exp)->exp_obd) && OBP((exp)->exp_obd, destroy_export)) OBP(exp->exp_obd, destroy_export)(exp); RETURN(0); } static inline int obd_extent_calc(struct obd_export *exp, struct lov_stripe_md *md, int cmd, obd_off *offset) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, extent_calc); rc = OBP(exp->exp_obd, extent_calc)(exp, md, cmd, offset); RETURN(rc); } static inline struct dentry * obd_lvfs_fid2dentry(struct obd_export *exp, __u64 id_ino, __u32 gen, __u64 gr) { LASSERT(exp->exp_obd); return lvfs_fid2dentry(&exp->exp_obd->obd_lvfs_ctxt, id_ino, gen, gr, exp->exp_obd); } static inline int obd_lvfs_open_llog(struct obd_export *exp, __u64 id_ino, struct dentry *dentry) { LASSERT(exp->exp_obd); CERROR("FIXME what's the story here? This needs to be an obd fn?\n"); #if 0 return lvfs_open_llog(&exp->exp_obd->obd_lvfs_ctxt, id_ino, dentry, exp->exp_obd); #endif return 0; } /* @max_age is the oldest time in jiffies 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 "cfs_time_current() + HZ" to guarantee freshness. */ static inline int obd_statfs_async(struct obd_export *exp, struct obd_info *oinfo, __u64 max_age, struct ptlrpc_request_set *rqset) { int rc = 0; struct obd_device *obd; ENTRY; if (exp == NULL || exp->exp_obd == NULL) RETURN(-EINVAL); obd = exp->exp_obd; OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP); OBD_COUNTER_INCREMENT(obd, statfs); CDEBUG(D_SUPER, "%s: osfs %p age "LPU64", max_age "LPU64"\n", obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age); if (cfs_time_before_64(obd->obd_osfs_age, max_age)) { rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset); } else { CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64 " objects "LPU64"/"LPU64"\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); cfs_spin_lock(&obd->obd_osfs_lock); memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs)); cfs_spin_unlock(&obd->obd_osfs_lock); oinfo->oi_flags |= OBD_STATFS_FROM_CACHE; if (oinfo->oi_cb_up) oinfo->oi_cb_up(oinfo, 0); } RETURN(rc); } static inline int obd_statfs_rqset(struct obd_export *exp, struct obd_statfs *osfs, __u64 max_age, __u32 flags) { struct ptlrpc_request_set *set = NULL; struct obd_info oinfo = { { { 0 } } }; int rc = 0; ENTRY; set = ptlrpc_prep_set(); if (set == NULL) RETURN(-ENOMEM); oinfo.oi_osfs = osfs; oinfo.oi_flags = flags; rc = obd_statfs_async(exp, &oinfo, max_age, set); if (rc == 0) rc = ptlrpc_set_wait(set); ptlrpc_set_destroy(set); RETURN(rc); } /* @max_age is the oldest time in jiffies 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 "cfs_time_current() + HZ" to guarantee freshness. */ static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp, struct obd_statfs *osfs, __u64 max_age, __u32 flags) { int rc = 0; struct obd_device *obd = exp->exp_obd; ENTRY; if (obd == NULL) RETURN(-EINVAL); OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP); OBD_COUNTER_INCREMENT(obd, statfs); CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n", obd->obd_osfs_age, max_age); if (cfs_time_before_64(obd->obd_osfs_age, max_age)) { rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags); if (rc == 0) { cfs_spin_lock(&obd->obd_osfs_lock); memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs)); obd->obd_osfs_age = cfs_time_current_64(); cfs_spin_unlock(&obd->obd_osfs_lock); } } else { CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64 " objects "LPU64"/"LPU64"\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); cfs_spin_lock(&obd->obd_osfs_lock); memcpy(osfs, &obd->obd_osfs, sizeof(*osfs)); cfs_spin_unlock(&obd->obd_osfs_lock); } RETURN(rc); } static inline int obd_sync_rqset(struct obd_export *exp, struct obd_info *oinfo, obd_size start, obd_size end) { struct ptlrpc_request_set *set = NULL; int rc; ENTRY; OBD_CHECK_DT_OP(exp->exp_obd, sync, -EOPNOTSUPP); EXP_COUNTER_INCREMENT(exp, sync); set = ptlrpc_prep_set(); if (set == NULL) RETURN(-ENOMEM); rc = OBP(exp->exp_obd, sync)(NULL, exp, oinfo, start, end, set); if (rc == 0) rc = ptlrpc_set_wait(set); ptlrpc_set_destroy(set); RETURN(rc); } static inline int obd_sync(const struct lu_env *env, struct obd_export *exp, struct obd_info *oinfo, obd_size start, obd_size end, struct ptlrpc_request_set *set) { int rc; ENTRY; OBD_CHECK_DT_OP(exp->exp_obd, sync, -EOPNOTSUPP); EXP_COUNTER_INCREMENT(exp, sync); rc = OBP(exp->exp_obd, sync)(env, exp, oinfo, start, end, set); RETURN(rc); } static inline int obd_punch_rqset(struct obd_export *exp, struct obd_info *oinfo, struct obd_trans_info *oti) { struct ptlrpc_request_set *set = NULL; int rc; ENTRY; EXP_CHECK_DT_OP(exp, punch); EXP_COUNTER_INCREMENT(exp, punch); set = ptlrpc_prep_set(); if (set == NULL) RETURN(-ENOMEM); rc = OBP(exp->exp_obd, punch)(NULL, exp, oinfo, oti, set); if (rc == 0) rc = ptlrpc_set_wait(set); ptlrpc_set_destroy(set); RETURN(rc); } static inline int obd_punch(const struct lu_env *env, struct obd_export *exp, struct obd_info *oinfo, struct obd_trans_info *oti, struct ptlrpc_request_set *rqset) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, punch); EXP_COUNTER_INCREMENT(exp, punch); rc = OBP(exp->exp_obd, punch)(env, exp, oinfo, oti, rqset); RETURN(rc); } static inline int obd_brw(int cmd, struct obd_export *exp, struct obd_info *oinfo, obd_count oa_bufs, struct brw_page *pg, struct obd_trans_info *oti) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, brw); EXP_COUNTER_INCREMENT(exp, brw); if (!(cmd & (OBD_BRW_RWMASK | OBD_BRW_CHECK))) { CERROR("obd_brw: cmd must be OBD_BRW_READ, OBD_BRW_WRITE, " "or OBD_BRW_CHECK\n"); LBUG(); } rc = OBP(exp->exp_obd, brw)(cmd, exp, oinfo, oa_bufs, pg, oti); 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, struct obd_trans_info *oti, struct lustre_capa *capa) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, preprw); EXP_COUNTER_INCREMENT(exp, preprw); rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote, pages, local, oti, capa); 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, struct obd_trans_info *oti, int rc) { ENTRY; EXP_CHECK_DT_OP(exp, commitrw); EXP_COUNTER_INCREMENT(exp, commitrw); rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj, rnb, pages, local, oti, rc); RETURN(rc); } static inline int obd_merge_lvb(struct obd_export *exp, struct lov_stripe_md *lsm, struct ost_lvb *lvb, int kms_only) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, merge_lvb); EXP_COUNTER_INCREMENT(exp, merge_lvb); rc = OBP(exp->exp_obd, merge_lvb)(exp, lsm, lvb, kms_only); RETURN(rc); } static inline int obd_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm, obd_off size, int shrink) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, adjust_kms); EXP_COUNTER_INCREMENT(exp, adjust_kms); rc = OBP(exp->exp_obd, adjust_kms)(exp, lsm, size, shrink); RETURN(rc); } static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp, int len, void *karg, void *uarg) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, iocontrol); EXP_COUNTER_INCREMENT(exp, iocontrol); rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg); RETURN(rc); } static inline int obd_enqueue_rqset(struct obd_export *exp, struct obd_info *oinfo, struct ldlm_enqueue_info *einfo) { struct ptlrpc_request_set *set = NULL; int rc; ENTRY; EXP_CHECK_DT_OP(exp, enqueue); EXP_COUNTER_INCREMENT(exp, enqueue); set = ptlrpc_prep_set(); if (set == NULL) RETURN(-ENOMEM); rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set); if (rc == 0) rc = ptlrpc_set_wait(set); ptlrpc_set_destroy(set); RETURN(rc); } static inline int obd_enqueue(struct obd_export *exp, struct obd_info *oinfo, struct ldlm_enqueue_info *einfo, struct ptlrpc_request_set *set) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, enqueue); EXP_COUNTER_INCREMENT(exp, enqueue); rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set); RETURN(rc); } static inline int obd_change_cbdata(struct obd_export *exp, struct lov_stripe_md *lsm, ldlm_iterator_t it, void *data) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, change_cbdata); EXP_COUNTER_INCREMENT(exp, change_cbdata); rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data); RETURN(rc); } static inline int obd_find_cbdata(struct obd_export *exp, struct lov_stripe_md *lsm, ldlm_iterator_t it, void *data) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, find_cbdata); EXP_COUNTER_INCREMENT(exp, find_cbdata); rc = OBP(exp->exp_obd, find_cbdata)(exp, lsm, it, data); RETURN(rc); } static inline int obd_cancel(struct obd_export *exp, struct lov_stripe_md *ea, __u32 mode, struct lustre_handle *lockh) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, cancel); EXP_COUNTER_INCREMENT(exp, cancel); rc = OBP(exp->exp_obd, cancel)(exp, ea, mode, lockh); RETURN(rc); } static inline int obd_cancel_unused(struct obd_export *exp, struct lov_stripe_md *ea, ldlm_cancel_flags_t flags, void *opaque) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, cancel_unused); EXP_COUNTER_INCREMENT(exp, cancel_unused); rc = OBP(exp->exp_obd, cancel_unused)(exp, ea, flags, opaque); RETURN(rc); } static inline int obd_pin(struct obd_export *exp, const struct lu_fid *fid, struct obd_capa *oc, struct obd_client_handle *handle, int flag) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, pin); EXP_COUNTER_INCREMENT(exp, pin); rc = OBP(exp->exp_obd, pin)(exp, fid, oc, handle, flag); RETURN(rc); } static inline int obd_unpin(struct obd_export *exp, struct obd_client_handle *handle, int flag) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, unpin); EXP_COUNTER_INCREMENT(exp, unpin); rc = OBP(exp->exp_obd, unpin)(exp, handle, flag); 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)) { OBD_COUNTER_INCREMENT(obd, import_event); OBP(obd, import_event)(obd, imp, event); } EXIT; } static inline int obd_llog_connect(struct obd_export *exp, struct llogd_conn_body *body) { int rc; ENTRY; OBD_CHECK_DT_OP(exp->exp_obd, llog_connect, 0); EXP_COUNTER_INCREMENT(exp, llog_connect); rc = OBP(exp->exp_obd, llog_connect)(exp, body); RETURN(rc); } static inline int obd_notify(struct obd_device *obd, struct obd_device *watched, enum obd_notify_event ev, void *data) { int rc; ENTRY; OBD_CHECK_DEV(obd); /* the check for async_recov is a complete hack - I'm hereby overloading the meaning to also mean "this was called from mds_postsetup". I know that my mds is able to handle notifies by this point, and it needs to get them to execute mds_postrecov. */ if (!obd->obd_set_up && !obd->obd_async_recov) { 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); } OBD_COUNTER_INCREMENT(obd, notify); rc = OBP(obd, notify)(obd, watched, ev, data); RETURN(rc); } static inline int obd_notify_observer(struct obd_device *observer, struct obd_device *observed, enum obd_notify_event ev, void *data) { int rc1; int rc2; struct obd_notify_upcall *onu; if (observer->obd_observer) rc1 = obd_notify(observer->obd_observer, observed, ev, data); else rc1 = 0; /* * 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, NULL); else rc2 = 0; return rc1 ? rc1 : rc2; } static inline int obd_quotacheck(struct obd_export *exp, struct obd_quotactl *oqctl) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, quotacheck); EXP_COUNTER_INCREMENT(exp, quotacheck); rc = OBP(exp->exp_obd, quotacheck)(exp->exp_obd, exp, oqctl); RETURN(rc); } static inline int obd_quotactl(struct obd_export *exp, struct obd_quotactl *oqctl) { int rc; ENTRY; EXP_CHECK_DT_OP(exp, quotactl); EXP_COUNTER_INCREMENT(exp, quotactl); 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; /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */ if (obd == NULL || !OBT(obd)) { 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) { ENTRY; OBD_CHECK_DEV(obd); cfs_down_write(&obd->obd_observer_link_sem); if (obd->obd_observer && observer) { cfs_up_write(&obd->obd_observer_link_sem); RETURN(-EALREADY); } obd->obd_observer = observer; cfs_up_write(&obd->obd_observer_link_sem); RETURN(0); } static inline int obd_pin_observer(struct obd_device *obd, struct obd_device **observer) { ENTRY; cfs_down_read(&obd->obd_observer_link_sem); if (!obd->obd_observer) { *observer = NULL; cfs_up_read(&obd->obd_observer_link_sem); RETURN(-ENOENT); } *observer = obd->obd_observer; RETURN(0); } static inline int obd_unpin_observer(struct obd_device *obd) { ENTRY; cfs_up_read(&obd->obd_observer_link_sem); RETURN(0); } #if 0 static inline int obd_register_page_removal_cb(struct obd_export *exp, obd_page_removal_cb_t cb, obd_pin_extent_cb pin_cb) { int rc; ENTRY; OBD_CHECK_DT_OP(exp->exp_obd, register_page_removal_cb, 0); OBD_COUNTER_INCREMENT(exp->exp_obd, register_page_removal_cb); rc = OBP(exp->exp_obd, register_page_removal_cb)(exp, cb, pin_cb); RETURN(rc); } static inline int obd_unregister_page_removal_cb(struct obd_export *exp, obd_page_removal_cb_t cb) { int rc; ENTRY; OBD_CHECK_DT_OP(exp->exp_obd, unregister_page_removal_cb, 0); OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_page_removal_cb); rc = OBP(exp->exp_obd, unregister_page_removal_cb)(exp, cb); RETURN(rc); } static inline int obd_register_lock_cancel_cb(struct obd_export *exp, obd_lock_cancel_cb cb) { int rc; ENTRY; OBD_CHECK_DT_OP(exp->exp_obd, register_lock_cancel_cb, 0); OBD_COUNTER_INCREMENT(exp->exp_obd, register_lock_cancel_cb); rc = OBP(exp->exp_obd, register_lock_cancel_cb)(exp, cb); RETURN(rc); } static inline int obd_unregister_lock_cancel_cb(struct obd_export *exp, obd_lock_cancel_cb cb) { int rc; ENTRY; OBD_CHECK_DT_OP(exp->exp_obd, unregister_lock_cancel_cb, 0); OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_lock_cancel_cb); rc = OBP(exp->exp_obd, unregister_lock_cancel_cb)(exp, cb); RETURN(rc); } #endif /* metadata helpers */ static inline int md_getstatus(struct obd_export *exp, struct lu_fid *fid, struct obd_capa **pc) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, getstatus); EXP_MD_COUNTER_INCREMENT(exp, getstatus); rc = MDP(exp->exp_obd, getstatus)(exp, fid, pc); RETURN(rc); } static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data, struct ptlrpc_request **request) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, getattr); EXP_MD_COUNTER_INCREMENT(exp, getattr); rc = MDP(exp->exp_obd, getattr)(exp, op_data, request); RETURN(rc); } static inline int md_change_cbdata(struct obd_export *exp, const struct lu_fid *fid, ldlm_iterator_t it, void *data) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, change_cbdata); EXP_MD_COUNTER_INCREMENT(exp, change_cbdata); rc = MDP(exp->exp_obd, change_cbdata)(exp, fid, it, data); RETURN(rc); } static inline int md_find_cbdata(struct obd_export *exp, const struct lu_fid *fid, ldlm_iterator_t it, void *data) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, find_cbdata); EXP_MD_COUNTER_INCREMENT(exp, find_cbdata); rc = MDP(exp->exp_obd, find_cbdata)(exp, fid, it, data); RETURN(rc); } 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; ENTRY; EXP_CHECK_MD_OP(exp, close); EXP_MD_COUNTER_INCREMENT(exp, close); rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request); RETURN(rc); } static inline int md_create(struct obd_export *exp, struct md_op_data *op_data, const void *data, int datalen, int mode, __u32 uid, __u32 gid, cfs_cap_t cap_effective, __u64 rdev, struct ptlrpc_request **request) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, create); EXP_MD_COUNTER_INCREMENT(exp, create); rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode, uid, gid, cap_effective, rdev, request); RETURN(rc); } static inline int md_done_writing(struct obd_export *exp, struct md_op_data *op_data, struct md_open_data *mod) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, done_writing); EXP_MD_COUNTER_INCREMENT(exp, done_writing); rc = MDP(exp->exp_obd, done_writing)(exp, op_data, mod); RETURN(rc); } static inline int md_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo, struct lookup_intent *it, struct md_op_data *op_data, struct lustre_handle *lockh, void *lmm, int lmmsize, struct ptlrpc_request **req, int extra_lock_flags) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, enqueue); EXP_MD_COUNTER_INCREMENT(exp, enqueue); rc = MDP(exp->exp_obd, enqueue)(exp, einfo, it, op_data, lockh, lmm, lmmsize, req, extra_lock_flags); RETURN(rc); } static inline int md_getattr_name(struct obd_export *exp, struct md_op_data *op_data, struct ptlrpc_request **request) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, getattr_name); EXP_MD_COUNTER_INCREMENT(exp, getattr_name); rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request); RETURN(rc); } static inline int md_intent_lock(struct obd_export *exp, struct md_op_data *op_data, void *lmm, int lmmsize, struct lookup_intent *it, int flags, struct ptlrpc_request **reqp, ldlm_blocking_callback cb_blocking, int extra_lock_flags) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, intent_lock); EXP_MD_COUNTER_INCREMENT(exp, intent_lock); rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, lmm, lmmsize, it, flags, reqp, cb_blocking, extra_lock_flags); RETURN(rc); } static inline int md_link(struct obd_export *exp, struct md_op_data *op_data, struct ptlrpc_request **request) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, link); EXP_MD_COUNTER_INCREMENT(exp, link); rc = MDP(exp->exp_obd, link)(exp, op_data, request); RETURN(rc); } static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data, const char *old, int oldlen, const char *new, int newlen, struct ptlrpc_request **request) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, rename); EXP_MD_COUNTER_INCREMENT(exp, rename); rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new, newlen, request); RETURN(rc); } static inline int md_is_subdir(struct obd_export *exp, const struct lu_fid *pfid, const struct lu_fid *cfid, struct ptlrpc_request **request) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, is_subdir); EXP_MD_COUNTER_INCREMENT(exp, is_subdir); rc = MDP(exp->exp_obd, is_subdir)(exp, pfid, cfid, request); RETURN(rc); } static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data, void *ea, int ealen, void *ea2, int ea2len, struct ptlrpc_request **request, struct md_open_data **mod) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, setattr); EXP_MD_COUNTER_INCREMENT(exp, setattr); rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen, ea2, ea2len, request, mod); RETURN(rc); } static inline int md_sync(struct obd_export *exp, const struct lu_fid *fid, struct obd_capa *oc, struct ptlrpc_request **request) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, sync); EXP_MD_COUNTER_INCREMENT(exp, sync); rc = MDP(exp->exp_obd, sync)(exp, fid, oc, request); RETURN(rc); } static inline int md_readpage(struct obd_export *exp, struct md_op_data *opdata, struct page **pages, struct ptlrpc_request **request) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, readpage); EXP_MD_COUNTER_INCREMENT(exp, readpage); rc = MDP(exp->exp_obd, readpage)(exp, opdata, pages, request); RETURN(rc); } static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data, struct ptlrpc_request **request) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, unlink); EXP_MD_COUNTER_INCREMENT(exp, unlink); rc = MDP(exp->exp_obd, unlink)(exp, op_data, request); RETURN(rc); } 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) { ENTRY; EXP_CHECK_MD_OP(exp, get_lustre_md); EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md); 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) { ENTRY; EXP_CHECK_MD_OP(exp, free_lustre_md); EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md); RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md)); } static inline int md_setxattr(struct obd_export *exp, const struct lu_fid *fid, struct obd_capa *oc, obd_valid valid, const char *name, const char *input, int input_size, int output_size, int flags, __u32 suppgid, struct ptlrpc_request **request) { ENTRY; EXP_CHECK_MD_OP(exp, setxattr); EXP_MD_COUNTER_INCREMENT(exp, setxattr); RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, oc, valid, name, input, input_size, output_size, flags, suppgid, request)); } static inline int md_getxattr(struct obd_export *exp, const struct lu_fid *fid, struct obd_capa *oc, obd_valid valid, const char *name, const char *input, int input_size, int output_size, int flags, struct ptlrpc_request **request) { ENTRY; EXP_CHECK_MD_OP(exp, getxattr); EXP_MD_COUNTER_INCREMENT(exp, getxattr); RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, oc, valid, name, input, input_size, output_size, flags, request)); } static inline int md_set_open_replay_data(struct obd_export *exp, struct obd_client_handle *och, struct ptlrpc_request *open_req) { ENTRY; EXP_CHECK_MD_OP(exp, set_open_replay_data); EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data); RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, open_req)); } static inline int md_clear_open_replay_data(struct obd_export *exp, struct obd_client_handle *och) { ENTRY; EXP_CHECK_MD_OP(exp, clear_open_replay_data); EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data); RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och)); } static inline int md_set_lock_data(struct obd_export *exp, __u64 *lockh, void *data, __u64 *bits) { ENTRY; EXP_CHECK_MD_OP(exp, set_lock_data); EXP_MD_COUNTER_INCREMENT(exp, set_lock_data); 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, ldlm_policy_data_t *policy, ldlm_mode_t mode, ldlm_cancel_flags_t flags, void *opaque) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, cancel_unused); EXP_MD_COUNTER_INCREMENT(exp, cancel_unused); rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode, flags, opaque); RETURN(rc); } static inline ldlm_mode_t md_lock_match(struct obd_export *exp, int flags, const struct lu_fid *fid, ldlm_type_t type, ldlm_policy_data_t *policy, ldlm_mode_t mode, struct lustre_handle *lockh) { ENTRY; EXP_CHECK_MD_OP(exp, lock_match); EXP_MD_COUNTER_INCREMENT(exp, lock_match); 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, int easize, int def_asize, int cookiesize) { ENTRY; EXP_CHECK_MD_OP(exp, init_ea_size); EXP_MD_COUNTER_INCREMENT(exp, init_ea_size); RETURN(MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize, cookiesize)); } static inline int md_get_remote_perm(struct obd_export *exp, const struct lu_fid *fid, struct obd_capa *oc, __u32 suppgid, struct ptlrpc_request **request) { ENTRY; EXP_CHECK_MD_OP(exp, get_remote_perm); EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm); RETURN(MDP(exp->exp_obd, get_remote_perm)(exp, fid, oc, suppgid, request)); } static inline int md_renew_capa(struct obd_export *exp, struct obd_capa *ocapa, renew_capa_cb_t cb) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, renew_capa); EXP_MD_COUNTER_INCREMENT(exp, renew_capa); rc = MDP(exp->exp_obd, renew_capa)(exp, ocapa, cb); RETURN(rc); } static inline int md_unpack_capa(struct obd_export *exp, struct ptlrpc_request *req, const struct req_msg_field *field, struct obd_capa **oc) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, unpack_capa); EXP_MD_COUNTER_INCREMENT(exp, unpack_capa); rc = MDP(exp->exp_obd, unpack_capa)(exp, req, field, oc); RETURN(rc); } static inline int md_intent_getattr_async(struct obd_export *exp, struct md_enqueue_info *minfo, struct ldlm_enqueue_info *einfo) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, intent_getattr_async); EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async); rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo, einfo); RETURN(rc); } static inline int md_revalidate_lock(struct obd_export *exp, struct lookup_intent *it, struct lu_fid *fid, __u64 *bits) { int rc; ENTRY; EXP_CHECK_MD_OP(exp, revalidate_lock); EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock); rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits); RETURN(rc); } /* OBD Metadata Support */ extern int obd_init_caches(void); extern void obd_cleanup_caches(void); /* support routines */ extern cfs_mem_cache_t *obdo_cachep; #define OBDO_ALLOC(ptr) \ do { \ OBD_SLAB_ALLOC_PTR_GFP((ptr), obdo_cachep, CFS_ALLOC_IO); \ } while(0) #define OBDO_FREE(ptr) \ do { \ OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \ } while(0) static inline void obdo2fid(struct obdo *oa, struct lu_fid *fid) { /* something here */ } static inline void fid2obdo(struct lu_fid *fid, struct obdo *oa) { /* something here */ } typedef int (*register_osp_cb)(void *data); struct osp_register_item { struct obd_export **ori_exp; register_osp_cb ori_cb_func; void *ori_cb_data; cfs_list_t ori_list; char ori_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 */ int server_name2fsname(char *svname, char *fsname, char **endptr); int lustre_register_osp_item(char *ospname, struct obd_export **exp, register_osp_cb cb_func, void *cb_data); void lustre_deregister_osp_item(struct obd_export **exp); int tgt_name2ospname(char *ost_name, char *osp_name); /* sysctl.c */ extern void obd_sysctl_init (void); extern void obd_sysctl_clean (void); /* uuid.c */ typedef __u8 class_uuid_t[16]; void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out); /* 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); void class_init_uuidlist(void); void class_exit_uuidlist(void); /* mea.c */ int mea_name2idx(struct lmv_stripe_md *mea, const char *name, int namelen); int raw_name2idx(int hashtype, int count, const char *name, int namelen); /* prng.c */ #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t)) #endif /* __LINUX_OBD_CLASS_H */