| /* |
| * 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, 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 "lustre/lustre_idl.h" |
| #include "lprocfs_status.h" |
| |
| #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_STATFS_FOR_MDT0 0x0008 /* The statfs is only for retrieving |
| * information from MDT0. |
| */ |
| #define OBD_FL_PUNCH 0x00000001 /* To indicate it is punch operation */ |
| |
| /* 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 *); |
| 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 *); |
| int class_register_type(struct obd_ops *, struct md_ops *, |
| 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_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); |
| |
| 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 */ |
| 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); |
| 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; |
| }; |
| |
| 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 |
| |
| /* 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); |
| |
| 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_refresh_inode(struct inode *dst, struct obdo *src, u32 valid); |
| |
| void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj); |
| void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, u32 valid); |
| |
| #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) \ |
| 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); \ |
| } |
| |
| #define EXP_COUNTER_INCREMENT(export, op) \ |
| 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); \ |
| } |
| |
| #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) \ |
| 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); \ |
| } |
| |
| #define EXP_MD_COUNTER_INCREMENT(export, op) \ |
| 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); \ |
| } |
| |
| #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, |
| struct lov_stripe_md *lsm) |
| { |
| 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, |
| lsm); |
| 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. |
| */ |
| |
| #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); |
| |
| 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, |
| enum obd_cleanup_stage cleanup_stage) |
| { |
| int rc; |
| DECLARE_LU_VARS(ldt, d); |
| |
| rc = obd_check_dev(obd); |
| if (rc) |
| return rc; |
| ldt = obd->obd_type->typ_lu; |
| d = obd->obd_lu_dev; |
| if (ldt && d) { |
| 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); |
| |
| 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; |
| DECLARE_LU_VARS(ldt, 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; |
| } |
| |
| /* 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; |
| |
| 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); |
| } |
| |
| static inline int obd_free_diskmd(struct obd_export *exp, |
| struct lov_mds_md **disk_tgt) |
| { |
| LASSERT(disk_tgt); |
| LASSERT(*disk_tgt); |
| /* |
| * LU-2590, for caller's convenience, *disk_tgt could be host |
| * endianness, it needs swab to LE if necessary, while just |
| * lov_mds_md header needs it for figuring out how much memory |
| * needs to be freed. |
| */ |
| if ((cpu_to_le32(LOV_MAGIC) != LOV_MAGIC) && |
| (((*disk_tgt)->lmm_magic == LOV_MAGIC_V1) || |
| ((*disk_tgt)->lmm_magic == LOV_MAGIC_V3))) |
| lustre_swab_lov_mds_md(*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; |
| |
| 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); |
| 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_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; |
| |
| 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) |
| { |
| int rc; |
| |
| EXP_CHECK_DT_OP(exp, destroy); |
| EXP_COUNTER_INCREMENT(exp, destroy); |
| |
| rc = OBP(exp->exp_obd, destroy)(env, exp, obdo, ea, oti, md_exp); |
| return rc; |
| } |
| |
| static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp, |
| struct obd_info *oinfo) |
| { |
| int rc; |
| |
| 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; |
| |
| 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; |
| |
| 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; |
| |
| EXP_CHECK_DT_OP(exp, setattr_async); |
| EXP_COUNTER_INCREMENT(exp, setattr_async); |
| |
| set = ptlrpc_prep_set(); |
| if (!set) |
| 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; |
| |
| 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; |
| |
| 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(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)(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 "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; |
| |
| 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 (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 %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 = { }; |
| int rc = 0; |
| |
| set = ptlrpc_prep_set(); |
| if (!set) |
| 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; |
| |
| 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 (cfs_time_before_64(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 = cfs_time_current_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, |
| struct obd_trans_info *oti) |
| { |
| 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, oti); |
| 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) |
| { |
| 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_adjust_kms(struct obd_export *exp, |
| struct lov_stripe_md *lsm, u64 size, |
| int shrink) |
| { |
| int rc; |
| |
| 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 __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 int obd_find_cbdata(struct obd_export *exp, |
| struct lov_stripe_md *lsm, |
| ldlm_iterator_t it, void *data) |
| { |
| int rc; |
| |
| 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 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; |
| |
| /* 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) |
| 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; |
| |
| 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; |
| |
| 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_find_cbdata(struct obd_export *exp, |
| const struct lu_fid *fid, |
| ldlm_iterator_t it, void *data) |
| { |
| int rc; |
| |
| 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; |
| |
| 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; |
| |
| 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; |
| |
| 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, |
| __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, 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; |
| |
| 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 lookup_flags, 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, lmm, lmmsize, |
| it, lookup_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; |
| |
| 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; |
| |
| 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; |
| |
| 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; |
| |
| 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 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_readpage(struct obd_export *exp, struct md_op_data *opdata, |
| struct page **pages, |
| struct ptlrpc_request **request) |
| { |
| int rc; |
| |
| 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; |
| |
| 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_setxattr(struct obd_export *exp, const struct lu_fid *fid, |
| u64 valid, const char *name, |
| const char *input, int input_size, |
| int output_size, int 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, valid, name, input, |
| input_size, output_size, flags, |
| suppgid, request); |
| } |
| |
| static inline int md_getxattr(struct obd_export *exp, const struct lu_fid *fid, |
| u64 valid, const char *name, |
| const char *input, int input_size, |
| int output_size, int flags, |
| struct ptlrpc_request **request) |
| { |
| EXP_CHECK_MD_OP(exp, getxattr); |
| EXP_MD_COUNTER_INCREMENT(exp, getxattr); |
| return MDP(exp->exp_obd, getxattr)(exp, fid, 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 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, |
| __u64 *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, |
| ldlm_policy_data_t *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, |
| ldlm_policy_data_t *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, int easize, |
| int def_asize, int cookiesize, |
| int def_cookiesize) |
| { |
| 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, def_cookiesize); |
| } |
| |
| static inline int md_get_remote_perm(struct obd_export *exp, |
| const struct lu_fid *fid, __u32 suppgid, |
| struct ptlrpc_request **request) |
| { |
| 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, suppgid, |
| request); |
| } |
| |
| static inline int md_intent_getattr_async(struct obd_export *exp, |
| struct md_enqueue_info *minfo, |
| struct ldlm_enqueue_info *einfo) |
| { |
| 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, 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; |
| |
| 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 */ |
| |
| int obd_init_caches(void); |
| void obd_cleanup_caches(void); |
| |
| /* support routines */ |
| extern struct kmem_cache *obdo_cachep; |
| |
| 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_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 */ |
| |
| /* 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; |
| |
| /* prng.c */ |
| #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t)) |
| |
| #endif /* __LINUX_OBD_CLASS_H */ |