diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/include/obd_class.h')
| -rw-r--r-- | drivers/staging/lustre/lustre/include/obd_class.h | 1603 |
1 files changed, 0 insertions, 1603 deletions
diff --git a/drivers/staging/lustre/lustre/include/obd_class.h b/drivers/staging/lustre/lustre/include/obd_class.h deleted file mode 100644 index fc9c7720fee0..000000000000 --- a/drivers/staging/lustre/lustre/include/obd_class.h +++ /dev/null @@ -1,1603 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * 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, 2015, 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 <obd_support.h> -#include <lustre_import.h> -#include <lustre_net.h> -#include <obd.h> -#include <lustre_lib.h> -#include <lprocfs_status.h> - -/* requests should be send without delay and resends for avoid deadlocks */ -#define OBD_STATFS_NODELAY 0x0001 -/* the statfs callback should not update obd_osfs_age */ -#define OBD_STATFS_FROM_CACHE 0x0002 -/* the statfs is only for retrieving information from MDT0 */ -#define OBD_STATFS_FOR_MDT0 0x0004 - -/* OBD Device Declarations */ -extern struct obd_device *obd_devs[MAX_OBD_DEVICES]; -extern rwlock_t obd_dev_lock; - -/* OBD Operations Declarations */ -struct obd_device *class_exp2obd(struct obd_export *exp); -int class_handle_ioctl(unsigned int cmd, unsigned long arg); -int lustre_get_jobid(char *jobid); - -struct lu_device_type; - -/* genops.c */ -extern struct list_head obd_types; -struct obd_export *class_conn2export(struct lustre_handle *conn); -int class_register_type(struct obd_ops *dt_ops, struct md_ops *md_ops, - const char *name, struct lu_device_type *ldt); -int class_unregister_type(const char *name); - -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_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); - -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_barrier(void); - -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); -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, - struct lookup_intent *it); -void obd_put_mod_rpc_slot(struct client_obd *cli, u32 opc, - struct lookup_intent *it, 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 *); - -/* obd_config.c */ -char *lustre_cfg_string(struct lustre_cfg *lcfg, u32 index); -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); - -/* For interoperability */ -struct cfg_interop_param { - char *old_param; - char *new_param; -}; - -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_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); -int class_config_llog_handler(const struct lu_env *env, - struct llog_handle *handle, - struct llog_rec_hdr *rec, void *data); -int class_add_uuid(const char *uuid, __u64 nid); - -/* obdecho */ -void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars); - -#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); -enum { - CONFIG_T_CONFIG = 0, - CONFIG_T_SPTLRPC = 1, - CONFIG_T_RECOVER = 2, - CONFIG_T_PARAMS = 3, - CONFIG_T_MAX = 4 -}; - -#define PARAMS_FILENAME "params" -#define LCTL_UPCALL "lctl" - -/* list of active configuration logs */ -struct config_llog_data { - struct ldlm_res_id cld_resid; - struct config_llog_instance cld_cfg; - struct list_head cld_list_chain; - 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 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 *exp, - struct ldlm_lock *lock); -void __class_export_del_lock_ref(struct obd_export *exp, - struct ldlm_lock *lock); -extern void (*class_export_dump_hook)(struct obd_export *exp); - -#else - -#define __class_export_add_lock_ref(exp, lock) do {} while (0) -#define __class_export_del_lock_ref(exp, lock) do {} while (0) - -#endif - -/* 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 *imp); -void class_import_put(struct obd_import *imp); -struct obd_import *class_new_import(struct obd_device *obd); -void class_destroy_import(struct obd_import *exp); - -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_manual_cleanup(struct obd_device *obd); - -static inline void class_export_rpc_inc(struct obd_export *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)); -} - -static inline void class_export_rpc_dec(struct obd_export *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)); -} - -static inline struct obd_export *class_export_lock_get(struct obd_export *exp, - struct ldlm_lock *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)); - return class_export_get(exp); -} - -static inline void class_export_lock_put(struct obd_export *exp, - struct ldlm_lock *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); -} - -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) | - 0); -} - -static inline int lprocfs_climp_check(struct obd_device *obd) -{ - down_read(&(obd)->u.cli.cl_sem); - if (!(obd)->u.cli.cl_import) { - up_read(&(obd)->u.cli.cl_sem); - return -ENODEV; - } - return 0; -} - -struct inode; -struct lu_attr; -struct obdo; - -void obdo_to_ioobj(const struct obdo *oa, struct obd_ioobj *ioobj); - -#define OBT(dev) ((dev)->obd_type) -#define OBP(dev, op) ((dev)->obd_type->typ_dt_ops->op) -#define MDP(dev, op) ((dev)->obd_type->typ_md_ops->op) -#define CTXTP(ctxt, op) ((ctxt)->loc_logops->lop_##op) - -/* - * Ensure obd_setup: used for cleanup which must be called - * while obd is stopping - */ -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 */ -static inline int obd_check_dev_active(struct obd_device *obd) -{ - int rc; - - 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; - } - return rc; -} - -#define OBD_COUNTER_OFFSET(op) \ - ((offsetof(struct obd_ops, op) - \ - offsetof(struct obd_ops, iocontrol)) \ - / sizeof(((struct obd_ops *)(0))->iocontrol)) - -#define OBD_COUNTER_INCREMENT(obdx, op) \ -do { \ - if ((obdx)->obd_stats) { \ - 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); \ - } \ -} while (0) - -#define EXP_COUNTER_INCREMENT(export, op) \ -do { \ - if ((export)->exp_obd->obd_stats) { \ - 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); \ - } \ -} while (0) - -#define MD_COUNTER_OFFSET(op) \ - ((offsetof(struct md_ops, op) - \ - offsetof(struct md_ops, getstatus)) \ - / sizeof(((struct md_ops *)(0))->getstatus)) - -#define MD_COUNTER_INCREMENT(obdx, op) \ -do { \ - if ((obd)->md_stats) { \ - 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); \ - } \ -} while (0) - -#define EXP_MD_COUNTER_INCREMENT(export, op) \ -do { \ - if ((export)->exp_obd->obd_stats) { \ - 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) \ - lprocfs_counter_incr( \ - (export)->exp_md_stats, coffset); \ - } \ -} while (0) - -#define EXP_CHECK_MD_OP(exp, op) \ -do { \ - if (!(exp)) { \ - CERROR("obd_" #op ": NULL export\n"); \ - return -ENODEV; \ - } \ - if (!(exp)->exp_obd || !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)) { \ - CERROR("obd_" #op ": NULL export\n"); \ - return -ENODEV; \ - } \ - if (!(exp)->exp_obd || !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) -{ - int rc; - - 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); - 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; - - 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. - */ - -static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg) -{ - int rc; - struct lu_device_type *ldt; - struct lu_device *d; - - ldt = obd->obd_type->typ_lu; - if (ldt) { - 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 { - 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) -{ - int rc; - struct lu_device_type *ldt; - struct lu_device *d; - - rc = obd_check_dev(obd); - if (rc) - return rc; - ldt = obd->obd_type->typ_lu; - d = obd->obd_lu_dev; - if (ldt && d) { - struct lu_env env; - - rc = lu_env_init(&env, ldt->ldt_ctx_tags); - if (!rc) { - 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); - return rc; -} - -static inline int obd_cleanup(struct obd_device *obd) -{ - int rc; - struct lu_device_type *ldt; - struct lu_device *d; - - rc = obd_check_dev(obd); - if (rc) - return rc; - - ldt = obd->obd_type->typ_lu; - d = obd->obd_lu_dev; - if (ldt && d) { - 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) -{ - /* - * 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); -} - -static inline int -obd_process_config(struct obd_device *obd, int datalen, void *data) -{ - int rc; - struct lu_device_type *ldt; - struct lu_device *d; - - rc = obd_check_dev(obd); - if (rc) - return rc; - - obd->obd_process_conf = 1; - ldt = obd->obd_type->typ_lu; - d = obd->obd_lu_dev; - if (ldt && d) { - 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; -} - -static inline int obd_create(const struct lu_env *env, struct obd_export *exp, - struct obdo *obdo) -{ - int rc; - - EXP_CHECK_DT_OP(exp, create); - EXP_COUNTER_INCREMENT(exp, create); - - 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; - - EXP_CHECK_DT_OP(exp, destroy); - EXP_COUNTER_INCREMENT(exp, destroy); - - 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; - - EXP_CHECK_DT_OP(exp, getattr); - EXP_COUNTER_INCREMENT(exp, getattr); - - 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; - - EXP_CHECK_DT_OP(exp, setattr); - EXP_COUNTER_INCREMENT(exp, setattr); - - 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; - - rc = obd_check_dev_active(obd); - if (rc) - return rc; - 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; - - rc = obd_check_dev_active(obd); - if (rc) - return rc; - 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; - - 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 - */ - - rc = obd_check_dev_active(obd); - if (rc) - return rc; - 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, (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 */ - - rc = obd_check_dev_active(obd); - if (rc) - return rc; - 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, (d->ocd_connect_flags & ocf) == d->ocd_connect_flags)); - return rc; -} - -static inline int obd_disconnect(struct obd_export *exp) -{ - int rc; - - 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_device *obd, struct obd_export *exp, - enum lu_cli_type type) -{ - int rc; - - OBD_CHECK_DT_OP(obd, fid_init, 0); - OBD_COUNTER_INCREMENT(obd, fid_init); - - rc = OBP(obd, fid_init)(obd, exp, type); - return rc; -} - -static inline int obd_fid_fini(struct obd_device *obd) -{ - int rc; - - OBD_CHECK_DT_OP(obd, fid_fini, 0); - OBD_COUNTER_INCREMENT(obd, fid_fini); - - 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; - - EXP_CHECK_DT_OP(exp, fid_alloc); - EXP_COUNTER_INCREMENT(exp, fid_alloc); - - 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; - - 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; - - 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; - - 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; - - 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) -{ - if (OBT(obd) && OBP(obd, getref)) { - OBD_COUNTER_INCREMENT(obd, getref); - OBP(obd, getref)(obd); - } -} - -static inline void obd_putref(struct obd_device *obd) -{ - if (OBT(obd) && OBP(obd, putref)) { - OBD_COUNTER_INCREMENT(obd, putref); - OBP(obd, putref)(obd); - } -} - -static inline int obd_init_export(struct obd_export *exp) -{ - int rc = 0; - - if ((exp)->exp_obd && 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) -{ - if ((exp)->exp_obd && OBT((exp)->exp_obd) && - OBP((exp)->exp_obd, destroy_export)) - OBP(exp->exp_obd, destroy_export)(exp); - 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 "jiffies + 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; - - if (!exp || !exp->exp_obd) - 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 %llu, max_age %llu\n", - obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age); - if (time_before64(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 %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(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs)); - 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 = { - .oi_osfs = osfs, - .oi_flags = flags, - }; - int rc = 0; - - set = ptlrpc_prep_set(); - if (!set) - return -ENOMEM; - - 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 "jiffies + 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; - - if (!obd) - return -EINVAL; - - OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP); - OBD_COUNTER_INCREMENT(obd, statfs); - - CDEBUG(D_SUPER, "osfs %llu, max_age %llu\n", - obd->obd_osfs_age, max_age); - if (time_before64(obd->obd_osfs_age, max_age)) { - rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags); - if (rc == 0) { - spin_lock(&obd->obd_osfs_lock); - memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs)); - obd->obd_osfs_age = get_jiffies_64(); - spin_unlock(&obd->obd_osfs_lock); - } - } 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; - - 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); - 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, int rc) -{ - 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, rc); - return rc; -} - -static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp, - int len, void *karg, void __user *uarg) -{ - int rc; - - 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 void obd_import_event(struct obd_device *obd, - struct obd_import *imp, - enum obd_import_event event) -{ - if (!obd) { - CERROR("NULL device\n"); - return; - } - if (obd->obd_set_up && OBP(obd, import_event)) { - OBD_COUNTER_INCREMENT(obd, import_event); - OBP(obd, import_event)(obd, imp, event); - } -} - -static inline int obd_notify(struct obd_device *obd, - struct obd_device *watched, - enum obd_notify_event ev, - void *data) -{ - int rc; - - 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; - } - - 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) - rc2 = onu->onu_upcall(observer, observed, ev, - onu->onu_owner, NULL); - else - rc2 = 0; - - return rc1 ? rc1 : rc2; -} - -static inline int obd_quotactl(struct obd_export *exp, - struct obd_quotactl *oqctl) -{ - int rc; - - 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 supported reason == 1 right now - * We'll need to define some better reasons - * or flags in the future. - * <0 on error - */ - int rc; - - /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */ - if (!obd || !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) -{ - int rc; - - 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 */ -static inline int md_getstatus(struct obd_export *exp, struct lu_fid *fid) -{ - int rc; - - EXP_CHECK_MD_OP(exp, getstatus); - EXP_MD_COUNTER_INCREMENT(exp, getstatus); - rc = MDP(exp->exp_obd, getstatus)(exp, fid); - return rc; -} - -static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data, - struct ptlrpc_request **request) -{ - int rc; - - 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_null_inode(struct obd_export *exp, - const struct lu_fid *fid) -{ - int rc; - - EXP_CHECK_MD_OP(exp, null_inode); - EXP_MD_COUNTER_INCREMENT(exp, null_inode); - rc = MDP(exp->exp_obd, null_inode)(exp, fid); - 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; - - 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, size_t datalen, umode_t mode, - uid_t uid, gid_t gid, kernel_cap_t cap_effective, - __u64 rdev, struct ptlrpc_request **request) -{ - int rc; - - 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_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; - - EXP_CHECK_MD_OP(exp, enqueue); - EXP_MD_COUNTER_INCREMENT(exp, enqueue); - rc = MDP(exp->exp_obd, enqueue)(exp, einfo, policy, op_data, lockh, - 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; - - 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, - struct lookup_intent *it, - struct ptlrpc_request **reqp, - ldlm_blocking_callback cb_blocking, - __u64 extra_lock_flags) -{ - int rc; - - EXP_CHECK_MD_OP(exp, intent_lock); - EXP_MD_COUNTER_INCREMENT(exp, intent_lock); - rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, it, 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; - - 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, size_t oldlen, const char *new, - size_t newlen, struct ptlrpc_request **request) -{ - int rc; - - 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_setattr(struct obd_export *exp, struct md_op_data *op_data, - void *ea, size_t ealen, - struct ptlrpc_request **request) -{ - int rc; - - EXP_CHECK_MD_OP(exp, setattr); - EXP_MD_COUNTER_INCREMENT(exp, setattr); - rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen, request); - return rc; -} - -static inline int md_sync(struct obd_export *exp, const struct lu_fid *fid, - struct ptlrpc_request **request) -{ - int rc; - - EXP_CHECK_MD_OP(exp, sync); - EXP_MD_COUNTER_INCREMENT(exp, sync); - rc = MDP(exp->exp_obd, sync)(exp, fid, request); - return rc; -} - -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; - - EXP_CHECK_MD_OP(exp, read_page); - EXP_MD_COUNTER_INCREMENT(exp, read_page); - rc = MDP(exp->exp_obd, read_page)(exp, op_data, cb_op, hash_offset, - ppage); - return rc; -} - -static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data, - struct ptlrpc_request **request) -{ - int rc; - - 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) -{ - 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) -{ - 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_merge_attr(struct obd_export *exp, - const struct lmv_stripe_md *lsm, - struct cl_attr *attr, - ldlm_blocking_callback cb) -{ - EXP_CHECK_MD_OP(exp, merge_attr); - EXP_MD_COUNTER_INCREMENT(exp, merge_attr); - 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 char *value, size_t value_size, - unsigned int xattr_flags, u32 suppgid, - struct ptlrpc_request **request) -{ - EXP_CHECK_MD_OP(exp, setxattr); - EXP_MD_COUNTER_INCREMENT(exp, setxattr); - return MDP(exp->exp_obd, setxattr)(exp, fid, obd_md_valid, name, - value, value_size, xattr_flags, - suppgid, request); -} - -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) -{ - EXP_CHECK_MD_OP(exp, getxattr); - EXP_MD_COUNTER_INCREMENT(exp, 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) -{ - 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, it); -} - -static inline int md_clear_open_replay_data(struct obd_export *exp, - struct obd_client_handle *och) -{ - 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, - const struct lustre_handle *lockh, - void *data, __u64 *bits) -{ - 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, - union ldlm_policy_data *policy, - enum ldlm_mode mode, - enum ldlm_cancel_flags flags, - void *opaque) -{ - int rc; - - 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 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) -{ - 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, u32 easize, - u32 def_asize) -{ - 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); -} - -static inline int md_intent_getattr_async(struct obd_export *exp, - struct md_enqueue_info *minfo) -{ - int rc; - - 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); - return rc; -} - -static inline int md_revalidate_lock(struct obd_export *exp, - struct lookup_intent *it, - struct lu_fid *fid, __u64 *bits) -{ - int rc; - - 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; -} - -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; - - EXP_CHECK_MD_OP(exp, get_fid_from_lsm); - EXP_MD_COUNTER_INCREMENT(exp, get_fid_from_lsm); - rc = MDP(exp->exp_obd, get_fid_from_lsm)(exp, lsm, name, namelen, fid); - return rc; -} - -/* - * 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; - - EXP_CHECK_MD_OP(exp, unpackmd); - EXP_MD_COUNTER_INCREMENT(exp, unpackmd); - rc = MDP(exp->exp_obd, unpackmd)(exp, plsm, lmm, lmm_size); - return rc; -} - -/* OBD Metadata Support */ - -int obd_init_caches(void); -void obd_cleanup_caches(void); - -/* support routines */ -extern struct kmem_cache *obdo_cachep; - -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; - char lri_name[MTI_NAME_MAXLEN]; -}; - -/* - * I'm as embarrassed about this as you are. - * - * <shaver> // XXX do not look into _superhack with remaining eye - * <shaver> // 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 lustre_unregister_fs(void); -int lustre_register_fs(void); -int lustre_check_exclusion(struct super_block *sb, char *svname); - -/* sysctl.c */ -int obd_sysctl_init(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); - -/* class_obd.c */ -extern char obd_jobid_node[]; -extern struct miscdevice obd_psdev; -extern spinlock_t obd_types_lock; -int class_procfs_init(void); -int class_procfs_clean(void); - -/* prng.c */ -#define ll_generate_random_uuid(uuid_out) \ - get_random_bytes(uuid_out, sizeof(class_uuid_t)) - -/* 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 rw_semaphore; -struct root_squash_info { - uid_t rsi_uid; - gid_t rsi_gid; - struct list_head rsi_nosquash_nids; - struct rw_semaphore rsi_sem; -}; - -/* linux-module.c */ -int obd_ioctl_getdata(char **buf, int *len, void __user *arg); - -#endif /* __LINUX_OBD_CLASS_H */ |