4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2014, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
40 #include <obd_support.h>
41 #include <lustre_import.h>
42 #include <lustre_net.h>
44 #include <lustre_lib.h>
45 #include <lustre/lustre_idl.h>
46 #include <lprocfs_status.h>
48 #define OBD_STATFS_NODELAY 0x0001 /* requests should be send without delay
49 * and resends for avoid deadlocks */
50 #define OBD_STATFS_FROM_CACHE 0x0002 /* the statfs callback should not update
52 #define OBD_STATFS_PTLRPCD 0x0004 /* requests will be sent via ptlrpcd
53 * instead of a specific set. This
54 * means that we cannot rely on the set
55 * interpret routine to be called.
56 * lov_statfs_fini() must thus be called
57 * by the request interpret routine */
58 #define OBD_STATFS_FOR_MDT0 0x0008 /* The statfs is only for retrieving
59 * information from MDT0. */
61 /* OBD Device Declarations */
62 extern struct obd_device *obd_devs[MAX_OBD_DEVICES];
63 extern struct list_head obd_types;
64 extern spinlock_t obd_types_lock;
65 extern rwlock_t obd_dev_lock;
67 /* OBD Operations Declarations */
68 extern struct obd_device *class_conn2obd(struct lustre_handle *);
69 extern struct obd_device *class_exp2obd(struct obd_export *);
70 extern int class_handle_ioctl(unsigned int cmd, unsigned long arg);
71 extern int lustre_get_jobid(char *jobid);
73 struct lu_device_type;
76 struct obd_export *class_conn2export(struct lustre_handle *);
77 int class_register_type(struct obd_ops *, struct md_ops *, bool enable_proc,
78 struct lprocfs_vars *module_vars,
79 const char *nm, struct lu_device_type *ldt);
80 int class_unregister_type(const char *nm);
82 struct obd_device *class_newdev(const char *type_name, const char *name);
83 void class_release_dev(struct obd_device *obd);
85 int class_name2dev(const char *name);
86 struct obd_device *class_name2obd(const char *name);
87 int class_uuid2dev(struct obd_uuid *uuid);
88 struct obd_device *class_uuid2obd(struct obd_uuid *uuid);
89 void class_obd_list(void);
90 struct obd_device * class_find_client_obd(struct obd_uuid *tgt_uuid,
91 const char * typ_name,
92 struct obd_uuid *grp_uuid);
93 struct obd_device * class_devices_in_group(struct obd_uuid *grp_uuid,
95 struct obd_device * class_num2obd(int num);
96 int get_devices_count(void);
98 int class_notify_sptlrpc_conf(const char *fsname, int namelen);
100 char *obd_export_nid2str(struct obd_export *exp);
102 int obd_export_evict_by_nid(struct obd_device *obd, const char *nid);
103 int obd_export_evict_by_uuid(struct obd_device *obd, const char *uuid);
104 int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep);
106 int obd_zombie_impexp_init(void);
107 void obd_zombie_impexp_stop(void);
108 void obd_zombie_impexp_cull(void);
109 void obd_zombie_barrier(void);
110 void obd_exports_barrier(struct obd_device *obd);
111 int kuc_len(int payload_len);
112 struct kuc_hdr * kuc_ptr(void *p);
113 int kuc_ispayload(void *p);
114 void *kuc_alloc(int payload_len, int transport, int type);
115 void kuc_free(void *p, int payload_len);
116 int obd_get_request_slot(struct client_obd *cli);
117 void obd_put_request_slot(struct client_obd *cli);
118 __u32 obd_get_max_rpcs_in_flight(struct client_obd *cli);
119 int obd_set_max_rpcs_in_flight(struct client_obd *cli, __u32 max);
120 __u16 obd_get_max_mod_rpcs_in_flight(struct client_obd *cli);
121 int obd_set_max_mod_rpcs_in_flight(struct client_obd *cli, __u16 max);
122 int obd_mod_rpc_stats_seq_show(struct client_obd *cli, struct seq_file *seq);
124 __u16 obd_get_mod_rpc_slot(struct client_obd *cli, __u32 opc,
125 struct lookup_intent *it);
126 void obd_put_mod_rpc_slot(struct client_obd *cli, __u32 opc,
127 struct lookup_intent *it, __u16 tag);
131 typedef int (*llog_cb_t)(const struct lu_env *, struct llog_handle *,
132 struct llog_rec_hdr *, void *);
134 extern atomic_t obd_stale_export_num;
135 extern struct list_head obd_stale_exports;
136 extern spinlock_t obd_stale_export_lock;
138 struct obd_export *obd_stale_export_get(void);
139 void obd_stale_export_put(struct obd_export *exp);
140 void obd_stale_export_adjust(struct obd_export *exp);
143 struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg,
144 const char *new_name);
145 int class_process_config(struct lustre_cfg *lcfg);
146 int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
147 struct lustre_cfg *lcfg, void *data);
148 int class_attach(struct lustre_cfg *lcfg);
149 int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
150 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg);
151 int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg);
152 struct obd_device *class_incref(struct obd_device *obd,
153 const char *scope, const void *source);
154 void class_decref(struct obd_device *obd,
155 const char *scope, const void *source);
156 void dump_exports(struct obd_device *obd, int locks);
157 int class_config_llog_handler(const struct lu_env *env,
158 struct llog_handle *handle,
159 struct llog_rec_hdr *rec, void *data);
160 int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg);
161 int class_add_uuid(const char *uuid, __u64 nid);
163 #define CFG_F_START 0x01 /* Set when we start updating from a log */
164 #define CFG_F_MARKER 0x02 /* We are within a maker */
165 #define CFG_F_SKIP 0x04 /* We should ignore this cfg command */
166 #define CFG_F_COMPAT146 0x08 /* Allow old-style logs */
167 #define CFG_F_EXCLUDE 0x10 /* OST exclusion list */
169 /* Passed as data param to class_config_parse_llog */
170 struct config_llog_instance {
173 struct super_block *cfg_sb;
174 struct obd_uuid cfg_uuid;
175 llog_cb_t cfg_callback;
176 int cfg_last_idx; /* for partial llog processing */
180 int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
181 char *name, struct config_llog_instance *cfg);
182 int class_config_dump_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
183 char *name, struct config_llog_instance *cfg);
187 CONFIG_T_SPTLRPC = 1,
188 CONFIG_T_RECOVER = 2,
193 #define PARAMS_FILENAME "params"
194 #define LCTL_UPCALL "lctl"
196 /* list of active configuration logs */
197 struct config_llog_data {
198 struct ldlm_res_id cld_resid;
199 struct config_llog_instance cld_cfg;
200 struct list_head cld_list_chain;
201 atomic_t cld_refcount;
202 struct config_llog_data *cld_sptlrpc;/* depended sptlrpc log */
203 struct config_llog_data *cld_params; /* common parameters log */
204 struct config_llog_data *cld_recover;/* imperative recover log */
205 struct obd_export *cld_mgcexp;
206 struct mutex cld_lock;
208 unsigned int cld_stopping:1, /* we were told to stop
210 cld_lostlock:1; /* lock not requeued */
214 struct lustre_profile {
215 struct list_head lp_list;
220 bool lp_list_deleted;
223 struct lustre_profile *class_get_profile(const char * prof);
224 void class_del_profile(const char *prof);
225 void class_put_profile(struct lustre_profile *lprof);
226 void class_del_profiles(void);
229 #if LUSTRE_TRACKS_LOCK_EXP_REFS
231 void __class_export_add_lock_ref(struct obd_export *, struct ldlm_lock *);
232 void __class_export_del_lock_ref(struct obd_export *, struct ldlm_lock *);
233 extern void (*class_export_dump_hook)(struct obd_export *);
237 #define __class_export_add_lock_ref(exp, lock) do {} while(0)
238 #define __class_export_del_lock_ref(exp, lock) do {} while(0)
242 #define class_export_rpc_inc(exp) \
244 atomic_inc(&(exp)->exp_rpc_count); \
245 CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \
246 (exp), atomic_read(&(exp)->exp_rpc_count)); \
249 #define class_export_rpc_dec(exp) \
251 LASSERT_ATOMIC_POS(&exp->exp_rpc_count); \
252 atomic_dec(&(exp)->exp_rpc_count); \
253 CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \
254 (exp), atomic_read(&(exp)->exp_rpc_count)); \
257 #define class_export_lock_get(exp, lock) \
259 atomic_inc(&(exp)->exp_locks_count); \
260 __class_export_add_lock_ref(exp, lock); \
261 CDEBUG(D_INFO, "lock GETting export %p : new locks_count %d\n", \
262 (exp), atomic_read(&(exp)->exp_locks_count)); \
263 class_export_get(exp); \
266 #define class_export_lock_put(exp, lock) \
268 LASSERT_ATOMIC_POS(&exp->exp_locks_count); \
269 atomic_dec(&(exp)->exp_locks_count); \
270 __class_export_del_lock_ref(exp, lock); \
271 CDEBUG(D_INFO, "lock PUTting export %p : new locks_count %d\n", \
272 (exp), atomic_read(&(exp)->exp_locks_count)); \
273 class_export_put(exp); \
276 #define class_export_cb_get(exp) \
278 atomic_inc(&(exp)->exp_cb_count); \
279 CDEBUG(D_INFO, "callback GETting export %p : new cb_count %d\n",\
280 (exp), atomic_read(&(exp)->exp_cb_count)); \
281 class_export_get(exp); \
284 #define class_export_cb_put(exp) \
286 LASSERT_ATOMIC_POS(&exp->exp_cb_count); \
287 atomic_dec(&(exp)->exp_cb_count); \
288 CDEBUG(D_INFO, "callback PUTting export %p : new cb_count %d\n",\
289 (exp), atomic_read(&(exp)->exp_cb_count)); \
290 class_export_put(exp); \
294 struct obd_export *class_export_get(struct obd_export *exp);
295 void class_export_put(struct obd_export *exp);
296 struct obd_export *class_new_export(struct obd_device *obddev,
297 struct obd_uuid *cluuid);
298 void class_unlink_export(struct obd_export *exp);
300 struct obd_import *class_import_get(struct obd_import *);
301 void class_import_put(struct obd_import *);
302 struct obd_import *class_new_import(struct obd_device *obd);
303 void class_destroy_import(struct obd_import *exp);
305 struct obd_type *class_search_type(const char *name);
306 struct obd_type *class_get_type(const char *name);
307 void class_put_type(struct obd_type *type);
308 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
309 struct obd_uuid *cluuid);
310 int class_disconnect(struct obd_export *exp);
311 void class_fail_export(struct obd_export *exp);
312 int class_connected_export(struct obd_export *exp);
313 void class_disconnect_exports(struct obd_device *obddev);
314 int class_manual_cleanup(struct obd_device *obd);
315 void class_disconnect_stale_exports(struct obd_device *,
316 int (*test_export)(struct obd_export *));
317 static inline enum obd_option exp_flags_from_obd(struct obd_device *obd)
319 return ((obd->obd_fail ? OBD_OPT_FAILOVER : 0) |
320 (obd->obd_force ? OBD_OPT_FORCE : 0) |
321 (obd->obd_abort_recovery ? OBD_OPT_ABORT_RECOV : 0) |
325 #ifdef HAVE_SERVER_SUPPORT
326 static inline struct lu_target *class_exp2tgt(struct obd_export *exp)
328 LASSERT(exp->exp_obd);
329 if (exp->exp_obd->u.obt.obt_magic != OBT_MAGIC)
331 return exp->exp_obd->u.obt.obt_lut;
334 static inline struct lr_server_data *class_server_data(struct obd_device *obd)
336 LASSERT(obd->u.obt.obt_lut);
337 return &obd->u.obt.obt_lut->lut_lsd;
345 void obdo_from_la(struct obdo *dst, const struct lu_attr *la, u64 valid);
346 void la_from_obdo(struct lu_attr *la, const struct obdo *dst, u64 valid);
348 void obdo_cpy_md(struct obdo *dst, const struct obdo *src, u64 valid);
349 void obdo_to_ioobj(const struct obdo *oa, struct obd_ioobj *ioobj);
351 #define OBT(dev) (dev)->obd_type
352 #define OBP(dev, op) (dev)->obd_type->typ_dt_ops->o_ ## op
353 #define MDP(dev, op) (dev)->obd_type->typ_md_ops->m_ ## op
354 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
356 /* Ensure obd_setup: used for cleanup which must be called
357 while obd is stopping */
358 #define OBD_CHECK_DEV(obd) \
361 CERROR("NULL device\n"); \
366 /* ensure obd_setup and !obd_stopping */
367 #define OBD_CHECK_DEV_ACTIVE(obd) \
369 OBD_CHECK_DEV(obd); \
370 if (!(obd)->obd_set_up || (obd)->obd_stopping) { \
371 CERROR("Device %d not setup\n", \
378 #ifdef CONFIG_PROC_FS
379 #define OBD_COUNTER_OFFSET(op) \
380 ((offsetof(struct obd_ops, o_ ## op) - \
381 offsetof(struct obd_ops, o_iocontrol)) \
382 / sizeof(((struct obd_ops *)NULL)->o_iocontrol))
384 /* The '- 1' below is for o_owner. */
385 #define NUM_OBD_STATS \
386 (sizeof(struct obd_ops) / \
387 sizeof(((struct obd_ops *)NULL)->o_iocontrol) - 1)
389 #define OBD_COUNTER_INCREMENT(obd, op) \
390 lprocfs_counter_incr((obd)->obd_stats, \
391 (obd)->obd_cntr_base + OBD_COUNTER_OFFSET(op))
393 #define EXP_COUNTER_INCREMENT(exp, op) \
396 _off = (exp)->exp_obd->obd_cntr_base + OBD_COUNTER_OFFSET(op); \
397 lprocfs_counter_incr((exp)->exp_obd->obd_stats, _off); \
398 if ((exp)->exp_obd->obd_uses_nid_stats && \
399 (exp)->exp_nid_stats != NULL) \
400 lprocfs_counter_incr((exp)->exp_nid_stats->nid_stats, \
404 #define _MD_COUNTER_OFFSET(m_op) \
405 ((offsetof(struct md_ops, m_op) - \
406 offsetof(struct md_ops, MD_STATS_FIRST_OP)) / \
407 sizeof(((struct md_ops *)NULL)->MD_STATS_FIRST_OP))
409 #define MD_COUNTER_OFFSET(op) _MD_COUNTER_OFFSET(m_ ## op)
411 #define NUM_MD_STATS \
412 (_MD_COUNTER_OFFSET(MD_STATS_LAST_OP) - \
413 _MD_COUNTER_OFFSET(MD_STATS_FIRST_OP) + 1)
415 /* Note that we only increment md counters for ops whose offset is less
416 * than NUM_MD_STATS. This is explained in a comment in the definition
417 * of struct md_ops. */
418 #define EXP_MD_COUNTER_INCREMENT(exp, op) \
420 if (MD_COUNTER_OFFSET(op) < NUM_MD_STATS) \
421 lprocfs_counter_incr((exp)->exp_obd->obd_md_stats, \
422 (exp)->exp_obd->obd_md_cntr_base + \
423 MD_COUNTER_OFFSET(op)); \
427 #define OBD_COUNTER_OFFSET(op)
428 #define OBD_COUNTER_INCREMENT(obd, op)
429 #define EXP_COUNTER_INCREMENT(exp, op)
430 #define EXP_MD_COUNTER_INCREMENT(exp, op)
433 static inline int lprocfs_nid_ldlm_stats_init(struct nid_stat* tmp)
435 /* Always add in ldlm_stats */
436 tmp->nid_ldlm_stats = lprocfs_alloc_stats(LDLM_LAST_OPC - LDLM_FIRST_OPC
437 ,LPROCFS_STATS_FLAG_NOPERCPU);
438 if (tmp->nid_ldlm_stats == NULL)
441 lprocfs_init_ldlm_stats(tmp->nid_ldlm_stats);
443 return lprocfs_register_stats(tmp->nid_proc, "ldlm_stats",
444 tmp->nid_ldlm_stats);
447 #define EXP_CHECK_MD_OP(exp, op) \
449 if ((exp) == NULL) { \
450 CERROR("obd_" #op ": NULL export\n"); \
453 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
454 CERROR("obd_" #op ": cleaned up obd\n"); \
455 RETURN(-EOPNOTSUPP); \
457 if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
458 CERROR("obd_" #op ": dev %s/%d no operation\n", \
459 (exp)->exp_obd->obd_name, \
460 (exp)->exp_obd->obd_minor); \
461 RETURN(-EOPNOTSUPP); \
466 #define OBD_CHECK_DT_OP(obd, op, err) \
468 if (!OBT(obd) || !OBP((obd), op)) { \
470 CERROR("obd_" #op ": dev %d no operation\n", \
476 #define EXP_CHECK_DT_OP(exp, op) \
478 if ((exp) == NULL) { \
479 CERROR("obd_" #op ": NULL export\n"); \
482 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
483 CERROR("obd_" #op ": cleaned up obd\n"); \
484 RETURN(-EOPNOTSUPP); \
486 if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
487 CERROR("obd_" #op ": dev %d no operation\n", \
488 (exp)->exp_obd->obd_minor); \
489 RETURN(-EOPNOTSUPP); \
493 #define CTXT_CHECK_OP(ctxt, op, err) \
495 if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
497 CERROR("lop_" #op ": dev %d no operation\n", \
498 ctxt->loc_obd->obd_minor); \
503 static inline int class_devno_max(void)
505 return MAX_OBD_DEVICES;
508 static inline int obd_get_info(const struct lu_env *env, struct obd_export *exp,
509 __u32 keylen, void *key,
510 __u32 *vallen, void *val)
515 EXP_CHECK_DT_OP(exp, get_info);
516 EXP_COUNTER_INCREMENT(exp, get_info);
518 rc = OBP(exp->exp_obd, get_info)(env, exp, keylen, key, vallen, val);
522 static inline int obd_set_info_async(const struct lu_env *env,
523 struct obd_export *exp,
524 __u32 keylen, void *key,
525 __u32 vallen, void *val,
526 struct ptlrpc_request_set *set)
531 EXP_CHECK_DT_OP(exp, set_info_async);
532 EXP_COUNTER_INCREMENT(exp, set_info_async);
534 rc = OBP(exp->exp_obd, set_info_async)(env, exp, keylen, key, vallen,
540 * obd-lu integration.
542 * Functionality is being moved into new lu_device-based layering, but some
543 * pieces of configuration process are still based on obd devices.
545 * Specifically, lu_device_type_operations::ldto_device_alloc() methods fully
546 * subsume ->o_setup() methods of obd devices they replace. The same for
547 * lu_device_operations::ldo_process_config() and ->o_process_config(). As a
548 * result, obd_setup() and obd_process_config() branch and call one XOR
551 * Yet neither lu_device_type_operations::ldto_device_fini() nor
552 * lu_device_type_operations::ldto_device_free() fully implement the
553 * functionality of ->o_precleanup() and ->o_cleanup() they override. Hence,
554 * obd_precleanup() and obd_cleanup() call both lu_device and obd operations.
557 #define DECLARE_LU_VARS(ldt, d) \
558 struct lu_device_type *ldt; \
561 static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
564 DECLARE_LU_VARS(ldt, d);
567 ldt = obd->obd_type->typ_lu;
569 struct lu_context session_ctx;
571 lu_context_init(&session_ctx, LCT_SESSION | LCT_SERVER_SESSION);
572 session_ctx.lc_thread = NULL;
573 lu_context_enter(&session_ctx);
575 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
577 env.le_ses = &session_ctx;
578 d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
587 lu_context_exit(&session_ctx);
588 lu_context_fini(&session_ctx);
591 OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
592 OBD_COUNTER_INCREMENT(obd, setup);
593 rc = OBP(obd, setup)(obd, cfg);
598 static inline int obd_precleanup(struct obd_device *obd,
599 enum obd_cleanup_stage cleanup_stage)
602 DECLARE_LU_VARS(ldt, d);
606 ldt = obd->obd_type->typ_lu;
608 if (ldt != NULL && d != NULL) {
609 if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
612 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
614 ldt->ldt_ops->ldto_device_fini(&env, d);
619 OBD_CHECK_DT_OP(obd, precleanup, 0);
620 OBD_COUNTER_INCREMENT(obd, precleanup);
622 rc = OBP(obd, precleanup)(obd, cleanup_stage);
626 static inline int obd_cleanup(struct obd_device *obd)
629 DECLARE_LU_VARS(ldt, d);
634 ldt = obd->obd_type->typ_lu;
636 if (ldt != NULL && d != NULL) {
639 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
641 ldt->ldt_ops->ldto_device_free(&env, d);
643 obd->obd_lu_dev = NULL;
646 OBD_CHECK_DT_OP(obd, cleanup, 0);
647 OBD_COUNTER_INCREMENT(obd, cleanup);
649 rc = OBP(obd, cleanup)(obd);
653 static inline void obd_cleanup_client_import(struct obd_device *obd)
657 /* If we set up but never connected, the
658 client import will not have been cleaned. */
659 down_write(&obd->u.cli.cl_sem);
660 if (obd->u.cli.cl_import) {
661 struct obd_import *imp;
662 imp = obd->u.cli.cl_import;
663 CDEBUG(D_CONFIG, "%s: client import never connected\n",
665 ptlrpc_invalidate_import(imp);
666 client_destroy_import(imp);
667 obd->u.cli.cl_import = NULL;
669 up_write(&obd->u.cli.cl_sem);
675 obd_process_config(struct obd_device *obd, int datalen, void *data)
678 DECLARE_LU_VARS(ldt, d);
683 obd->obd_process_conf = 1;
684 ldt = obd->obd_type->typ_lu;
686 if (ldt != NULL && d != NULL) {
689 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
691 rc = d->ld_ops->ldo_process_config(&env, d, data);
695 OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
696 rc = OBP(obd, process_config)(obd, datalen, data);
698 OBD_COUNTER_INCREMENT(obd, process_config);
699 obd->obd_process_conf = 0;
704 static inline int obd_create(const struct lu_env *env, struct obd_export *exp,
710 EXP_CHECK_DT_OP(exp, create);
711 EXP_COUNTER_INCREMENT(exp, create);
713 rc = OBP(exp->exp_obd, create)(env, exp, obdo);
717 static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp,
723 EXP_CHECK_DT_OP(exp, destroy);
724 EXP_COUNTER_INCREMENT(exp, destroy);
726 rc = OBP(exp->exp_obd, destroy)(env, exp, obdo);
730 static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp,
736 EXP_CHECK_DT_OP(exp, getattr);
737 EXP_COUNTER_INCREMENT(exp, getattr);
738 rc = OBP(exp->exp_obd, getattr)(env, exp, oa);
743 static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp,
749 EXP_CHECK_DT_OP(exp, setattr);
750 EXP_COUNTER_INCREMENT(exp, setattr);
751 rc = OBP(exp->exp_obd, setattr)(env, exp, oa);
756 static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
759 struct obd_device *obd = imp->imp_obd;
763 OBD_CHECK_DEV_ACTIVE(obd);
764 OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
765 OBD_COUNTER_INCREMENT(obd, add_conn);
767 rc = OBP(obd, add_conn)(imp, uuid, priority);
771 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
773 struct obd_device *obd = imp->imp_obd;
777 OBD_CHECK_DEV_ACTIVE(obd);
778 OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
779 OBD_COUNTER_INCREMENT(obd, del_conn);
781 rc = OBP(obd, del_conn)(imp, uuid);
785 static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp)
787 struct obd_uuid *uuid;
790 OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL);
791 EXP_COUNTER_INCREMENT(exp, get_uuid);
793 uuid = OBP(exp->exp_obd, get_uuid)(exp);
797 /** Create a new /a exp on device /a obd for the uuid /a cluuid
798 * @param exp New export handle
799 * @param d Connect data, supported flags are set, flags also understood
800 * by obd are returned.
802 static inline int obd_connect(const struct lu_env *env,
803 struct obd_export **exp,struct obd_device *obd,
804 struct obd_uuid *cluuid,
805 struct obd_connect_data *data,
809 __u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
813 OBD_CHECK_DEV_ACTIVE(obd);
814 OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
815 OBD_COUNTER_INCREMENT(obd, connect);
817 rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata);
818 /* check that only subset is granted */
819 LASSERT(ergo(data != NULL, (data->ocd_connect_flags & ocf) ==
820 data->ocd_connect_flags));
824 static inline int obd_reconnect(const struct lu_env *env,
825 struct obd_export *exp,
826 struct obd_device *obd,
827 struct obd_uuid *cluuid,
828 struct obd_connect_data *d,
832 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
837 OBD_CHECK_DEV_ACTIVE(obd);
838 OBD_CHECK_DT_OP(obd, reconnect, 0);
839 OBD_COUNTER_INCREMENT(obd, reconnect);
841 rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
842 /* check that only subset is granted */
843 LASSERT(ergo(d != NULL,
844 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
848 static inline int obd_disconnect(struct obd_export *exp)
853 EXP_CHECK_DT_OP(exp, disconnect);
854 EXP_COUNTER_INCREMENT(exp, disconnect);
856 rc = OBP(exp->exp_obd, disconnect)(exp);
860 static inline int obd_fid_init(struct obd_device *obd, struct obd_export *exp,
861 enum lu_cli_type type)
866 OBD_CHECK_DT_OP(obd, fid_init, 0);
867 OBD_COUNTER_INCREMENT(obd, fid_init);
869 rc = OBP(obd, fid_init)(obd, exp, type);
873 static inline int obd_fid_fini(struct obd_device *obd)
878 OBD_CHECK_DT_OP(obd, fid_fini, 0);
879 OBD_COUNTER_INCREMENT(obd, fid_fini);
881 rc = OBP(obd, fid_fini)(obd);
885 static inline int obd_fid_alloc(const struct lu_env *env,
886 struct obd_export *exp,
888 struct md_op_data *op_data)
893 EXP_CHECK_DT_OP(exp, fid_alloc);
894 EXP_COUNTER_INCREMENT(exp, fid_alloc);
896 rc = OBP(exp->exp_obd, fid_alloc)(env, exp, fid, op_data);
900 static inline int obd_ping(const struct lu_env *env, struct obd_export *exp)
905 OBD_CHECK_DT_OP(exp->exp_obd, ping, 0);
906 EXP_COUNTER_INCREMENT(exp, ping);
908 rc = OBP(exp->exp_obd, ping)(env, exp);
912 static inline int obd_pool_new(struct obd_device *obd, char *poolname)
917 OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP);
918 OBD_COUNTER_INCREMENT(obd, pool_new);
920 rc = OBP(obd, pool_new)(obd, poolname);
924 static inline int obd_pool_del(struct obd_device *obd, char *poolname)
929 OBD_CHECK_DT_OP(obd, pool_del, -EOPNOTSUPP);
930 OBD_COUNTER_INCREMENT(obd, pool_del);
932 rc = OBP(obd, pool_del)(obd, poolname);
936 static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname)
941 OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP);
942 OBD_COUNTER_INCREMENT(obd, pool_add);
944 rc = OBP(obd, pool_add)(obd, poolname, ostname);
948 static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname)
953 OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP);
954 OBD_COUNTER_INCREMENT(obd, pool_rem);
956 rc = OBP(obd, pool_rem)(obd, poolname, ostname);
960 static inline void obd_getref(struct obd_device *obd)
963 if (OBT(obd) && OBP(obd, getref)) {
964 OBD_COUNTER_INCREMENT(obd, getref);
965 OBP(obd, getref)(obd);
970 static inline void obd_putref(struct obd_device *obd)
973 if (OBT(obd) && OBP(obd, putref)) {
974 OBD_COUNTER_INCREMENT(obd, putref);
975 OBP(obd, putref)(obd);
980 static inline int obd_init_export(struct obd_export *exp)
985 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
986 OBP((exp)->exp_obd, init_export))
987 rc = OBP(exp->exp_obd, init_export)(exp);
991 static inline int obd_destroy_export(struct obd_export *exp)
994 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
995 OBP((exp)->exp_obd, destroy_export))
996 OBP(exp->exp_obd, destroy_export)(exp);
1000 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1001 * If the cache is older than @max_age we will get a new value from the
1002 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1003 static inline int obd_statfs_async(struct obd_export *exp,
1004 struct obd_info *oinfo,
1006 struct ptlrpc_request_set *rqset)
1009 struct obd_device *obd;
1012 if (exp == NULL || exp->exp_obd == NULL)
1016 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1017 OBD_COUNTER_INCREMENT(obd, statfs);
1019 CDEBUG(D_SUPER, "%s: osfs %p age "LPU64", max_age "LPU64"\n",
1020 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
1021 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1022 rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset);
1024 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1025 " objects "LPU64"/"LPU64"\n",
1026 obd->obd_name, &obd->obd_osfs,
1027 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1028 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1029 spin_lock(&obd->obd_osfs_lock);
1030 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
1031 spin_unlock(&obd->obd_osfs_lock);
1032 oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
1033 if (oinfo->oi_cb_up)
1034 oinfo->oi_cb_up(oinfo, 0);
1039 static inline int obd_statfs_rqset(struct obd_export *exp,
1040 struct obd_statfs *osfs, __u64 max_age,
1043 struct ptlrpc_request_set *set = NULL;
1044 struct obd_info oinfo = {
1052 set = ptlrpc_prep_set();
1056 rc = obd_statfs_async(exp, &oinfo, max_age, set);
1058 rc = ptlrpc_set_wait(set);
1060 ptlrpc_set_destroy(set);
1065 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1066 * If the cache is older than @max_age we will get a new value from the
1067 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1068 static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
1069 struct obd_statfs *osfs, __u64 max_age,
1073 struct obd_device *obd = exp->exp_obd;
1079 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1080 OBD_COUNTER_INCREMENT(obd, statfs);
1082 CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n",
1083 obd->obd_osfs_age, max_age);
1084 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1085 rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
1087 spin_lock(&obd->obd_osfs_lock);
1088 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1089 obd->obd_osfs_age = cfs_time_current_64();
1090 spin_unlock(&obd->obd_osfs_lock);
1093 CDEBUG(D_SUPER, "%s: use %p cache blocks "LPU64"/"LPU64
1094 " objects "LPU64"/"LPU64"\n",
1095 obd->obd_name, &obd->obd_osfs,
1096 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1097 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1098 spin_lock(&obd->obd_osfs_lock);
1099 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1100 spin_unlock(&obd->obd_osfs_lock);
1105 static inline int obd_preprw(const struct lu_env *env, int cmd,
1106 struct obd_export *exp, struct obdo *oa,
1107 int objcount, struct obd_ioobj *obj,
1108 struct niobuf_remote *remote, int *pages,
1109 struct niobuf_local *local)
1114 EXP_CHECK_DT_OP(exp, preprw);
1115 EXP_COUNTER_INCREMENT(exp, preprw);
1116 rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote,
1122 static inline int obd_commitrw(const struct lu_env *env, int cmd,
1123 struct obd_export *exp, struct obdo *oa,
1124 int objcount, struct obd_ioobj *obj,
1125 struct niobuf_remote *rnb, int pages,
1126 struct niobuf_local *local, int rc)
1130 EXP_CHECK_DT_OP(exp, commitrw);
1131 EXP_COUNTER_INCREMENT(exp, commitrw);
1132 rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj,
1133 rnb, pages, local, rc);
1138 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1139 int len, void *karg, void __user *uarg)
1144 EXP_CHECK_DT_OP(exp, iocontrol);
1145 EXP_COUNTER_INCREMENT(exp, iocontrol);
1147 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1151 static inline void obd_import_event(struct obd_device *obd,
1152 struct obd_import *imp,
1153 enum obd_import_event event)
1157 CERROR("NULL device\n");
1161 if (obd->obd_set_up && OBP(obd, import_event)) {
1162 OBD_COUNTER_INCREMENT(obd, import_event);
1163 OBP(obd, import_event)(obd, imp, event);
1168 static inline int obd_notify(struct obd_device *obd,
1169 struct obd_device *watched,
1170 enum obd_notify_event ev,
1177 if (!obd->obd_set_up) {
1178 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1182 if (!OBP(obd, notify)) {
1183 CDEBUG(D_HA, "obd %s has no notify handler\n", obd->obd_name);
1187 OBD_COUNTER_INCREMENT(obd, notify);
1188 rc = OBP(obd, notify)(obd, watched, ev, data);
1192 static inline int obd_notify_observer(struct obd_device *observer,
1193 struct obd_device *observed,
1194 enum obd_notify_event ev,
1200 struct obd_notify_upcall *onu;
1202 if (observer->obd_observer)
1203 rc1 = obd_notify(observer->obd_observer, observed, ev, data);
1207 * Also, call non-obd listener, if any
1209 onu = &observer->obd_upcall;
1210 if (onu->onu_upcall != NULL)
1211 rc2 = onu->onu_upcall(observer, observed, ev,
1212 onu->onu_owner, NULL);
1216 return rc1 ? rc1 : rc2;
1219 static inline int obd_quotactl(struct obd_export *exp,
1220 struct obd_quotactl *oqctl)
1225 EXP_CHECK_DT_OP(exp, quotactl);
1226 EXP_COUNTER_INCREMENT(exp, quotactl);
1228 rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl);
1232 static inline int obd_health_check(const struct lu_env *env,
1233 struct obd_device *obd)
1235 /* returns: 0 on healthy
1236 * >0 on unhealthy + reason code/flag
1237 * however the only suppored reason == 1 right now
1238 * We'll need to define some better reasons
1239 * or flags in the future.
1245 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1246 if (obd == NULL || !OBT(obd)) {
1247 CERROR("cleaned up obd\n");
1248 RETURN(-EOPNOTSUPP);
1250 if (!obd->obd_set_up || obd->obd_stopping)
1252 if (!OBP(obd, health_check))
1255 rc = OBP(obd, health_check)(env, obd);
1259 static inline int obd_register_observer(struct obd_device *obd,
1260 struct obd_device *observer)
1264 down_write(&obd->obd_observer_link_sem);
1265 if (obd->obd_observer && observer) {
1266 up_write(&obd->obd_observer_link_sem);
1269 obd->obd_observer = observer;
1270 up_write(&obd->obd_observer_link_sem);
1274 /* metadata helpers */
1275 static inline int md_getstatus(struct obd_export *exp, struct lu_fid *fid)
1280 EXP_CHECK_MD_OP(exp, getstatus);
1281 EXP_MD_COUNTER_INCREMENT(exp, getstatus);
1282 rc = MDP(exp->exp_obd, getstatus)(exp, fid);
1287 static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data,
1288 struct ptlrpc_request **request)
1292 EXP_CHECK_MD_OP(exp, getattr);
1293 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1294 rc = MDP(exp->exp_obd, getattr)(exp, op_data, request);
1298 static inline int md_null_inode(struct obd_export *exp,
1299 const struct lu_fid *fid)
1303 EXP_CHECK_MD_OP(exp, null_inode);
1304 EXP_MD_COUNTER_INCREMENT(exp, null_inode);
1305 rc = MDP(exp->exp_obd, null_inode)(exp, fid);
1309 static inline int md_find_cbdata(struct obd_export *exp,
1310 const struct lu_fid *fid,
1311 ldlm_iterator_t it, void *data)
1315 EXP_CHECK_MD_OP(exp, find_cbdata);
1316 EXP_MD_COUNTER_INCREMENT(exp, find_cbdata);
1317 rc = MDP(exp->exp_obd, find_cbdata)(exp, fid, it, data);
1321 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1322 struct md_open_data *mod,
1323 struct ptlrpc_request **request)
1327 EXP_CHECK_MD_OP(exp, close);
1328 EXP_MD_COUNTER_INCREMENT(exp, close);
1329 rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
1333 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1334 const void *data, size_t datalen, umode_t mode,
1335 uid_t uid, gid_t gid, cfs_cap_t cap_effective,
1336 __u64 rdev, struct ptlrpc_request **request)
1340 EXP_CHECK_MD_OP(exp, create);
1341 EXP_MD_COUNTER_INCREMENT(exp, create);
1342 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1343 uid, gid, cap_effective, rdev, request);
1347 static inline int md_enqueue(struct obd_export *exp,
1348 struct ldlm_enqueue_info *einfo,
1349 const union ldlm_policy_data *policy,
1350 struct lookup_intent *it,
1351 struct md_op_data *op_data,
1352 struct lustre_handle *lockh,
1353 __u64 extra_lock_flags)
1357 EXP_CHECK_MD_OP(exp, enqueue);
1358 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1359 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, policy, it, op_data, lockh,
1364 static inline int md_getattr_name(struct obd_export *exp,
1365 struct md_op_data *op_data,
1366 struct ptlrpc_request **request)
1370 EXP_CHECK_MD_OP(exp, getattr_name);
1371 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1372 rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request);
1376 static inline int md_intent_lock(struct obd_export *exp,
1377 struct md_op_data *op_data,
1378 struct lookup_intent *it,
1379 struct ptlrpc_request **reqp,
1380 ldlm_blocking_callback cb_blocking,
1381 __u64 extra_lock_flags)
1385 EXP_CHECK_MD_OP(exp, intent_lock);
1386 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1387 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, it, reqp, cb_blocking,
1392 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1393 struct ptlrpc_request **request)
1397 EXP_CHECK_MD_OP(exp, link);
1398 EXP_MD_COUNTER_INCREMENT(exp, link);
1399 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1403 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1404 const char *old, size_t oldlen, const char *new,
1405 size_t newlen, struct ptlrpc_request **request)
1409 EXP_CHECK_MD_OP(exp, rename);
1410 EXP_MD_COUNTER_INCREMENT(exp, rename);
1411 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
1416 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
1417 void *ea, size_t ealen,
1418 struct ptlrpc_request **request)
1422 EXP_CHECK_MD_OP(exp, setattr);
1423 EXP_MD_COUNTER_INCREMENT(exp, setattr);
1424 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen, request);
1428 static inline int md_fsync(struct obd_export *exp, const struct lu_fid *fid,
1429 struct ptlrpc_request **request)
1434 EXP_CHECK_MD_OP(exp, fsync);
1435 EXP_MD_COUNTER_INCREMENT(exp, fsync);
1436 rc = MDP(exp->exp_obd, fsync)(exp, fid, request);
1441 static inline int md_read_page(struct obd_export *exp,
1442 struct md_op_data *op_data,
1443 struct md_callback *cb_op,
1445 struct page **ppage)
1449 EXP_CHECK_MD_OP(exp, read_page);
1450 EXP_MD_COUNTER_INCREMENT(exp, read_page);
1451 rc = MDP(exp->exp_obd, read_page)(exp, op_data, cb_op, hash_offset,
1456 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
1457 struct ptlrpc_request **request)
1461 EXP_CHECK_MD_OP(exp, unlink);
1462 EXP_MD_COUNTER_INCREMENT(exp, unlink);
1463 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
1467 static inline int md_get_lustre_md(struct obd_export *exp,
1468 struct ptlrpc_request *req,
1469 struct obd_export *dt_exp,
1470 struct obd_export *md_exp,
1471 struct lustre_md *md)
1474 EXP_CHECK_MD_OP(exp, get_lustre_md);
1475 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
1476 RETURN(MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md));
1479 static inline int md_free_lustre_md(struct obd_export *exp,
1480 struct lustre_md *md)
1483 EXP_CHECK_MD_OP(exp, free_lustre_md);
1484 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
1485 RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md));
1488 static inline int md_merge_attr(struct obd_export *exp,
1489 const struct lmv_stripe_md *lsm,
1490 struct cl_attr *attr,
1491 ldlm_blocking_callback cb)
1494 EXP_CHECK_MD_OP(exp, merge_attr);
1495 EXP_MD_COUNTER_INCREMENT(exp, merge_attr);
1496 RETURN(MDP(exp->exp_obd, merge_attr)(exp, lsm, attr, cb));
1499 static inline int md_setxattr(struct obd_export *exp, const struct lu_fid *fid,
1500 u64 valid, const char *name,
1501 const char *input, int input_size,
1502 int output_size, int flags, __u32 suppgid,
1503 struct ptlrpc_request **request)
1506 EXP_CHECK_MD_OP(exp, setxattr);
1507 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
1508 RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, valid, name, input,
1509 input_size, output_size, flags,
1513 static inline int md_getxattr(struct obd_export *exp, const struct lu_fid *fid,
1514 u64 valid, const char *name,
1515 const char *input, int input_size,
1516 int output_size, int flags,
1517 struct ptlrpc_request **request)
1520 EXP_CHECK_MD_OP(exp, getxattr);
1521 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
1522 RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, valid, name, input,
1523 input_size, output_size, flags,
1527 static inline int md_set_open_replay_data(struct obd_export *exp,
1528 struct obd_client_handle *och,
1529 struct lookup_intent *it)
1532 EXP_CHECK_MD_OP(exp, set_open_replay_data);
1533 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
1534 RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, it));
1537 static inline int md_clear_open_replay_data(struct obd_export *exp,
1538 struct obd_client_handle *och)
1541 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
1542 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
1543 RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och));
1546 static inline int md_set_lock_data(struct obd_export *exp,
1547 __u64 *lockh, void *data, __u64 *bits)
1550 EXP_CHECK_MD_OP(exp, set_lock_data);
1551 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
1552 RETURN(MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits));
1556 int md_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
1557 union ldlm_policy_data *policy, enum ldlm_mode mode,
1558 enum ldlm_cancel_flags cancel_flags, void *opaque)
1563 EXP_CHECK_MD_OP(exp, cancel_unused);
1564 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
1566 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
1567 cancel_flags, opaque);
1571 static inline enum ldlm_mode md_lock_match(struct obd_export *exp, __u64 flags,
1572 const struct lu_fid *fid,
1573 enum ldlm_type type,
1574 union ldlm_policy_data *policy,
1575 enum ldlm_mode mode,
1576 struct lustre_handle *lockh)
1579 EXP_CHECK_MD_OP(exp, lock_match);
1580 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
1581 RETURN(MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
1582 policy, mode, lockh));
1585 static inline int md_init_ea_size(struct obd_export *exp, __u32 ea_size,
1589 EXP_CHECK_MD_OP(exp, init_ea_size);
1590 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
1591 RETURN(MDP(exp->exp_obd, init_ea_size)(exp, ea_size, def_ea_size));
1594 static inline int md_get_remote_perm(struct obd_export *exp,
1595 const struct lu_fid *fid, u32 suppgid,
1596 struct ptlrpc_request **request)
1599 EXP_CHECK_MD_OP(exp, get_remote_perm);
1600 EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm);
1602 RETURN(MDP(exp->exp_obd, get_remote_perm)(exp, fid, suppgid, request));
1605 static inline int md_intent_getattr_async(struct obd_export *exp,
1606 struct md_enqueue_info *minfo)
1610 EXP_CHECK_MD_OP(exp, intent_getattr_async);
1611 EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
1612 rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo);
1616 static inline int md_revalidate_lock(struct obd_export *exp,
1617 struct lookup_intent *it,
1618 struct lu_fid *fid, __u64 *bits)
1622 EXP_CHECK_MD_OP(exp, revalidate_lock);
1623 EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
1624 rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits);
1628 static inline int md_get_fid_from_lsm(struct obd_export *exp,
1629 const struct lmv_stripe_md *lsm,
1630 const char *name, int namelen,
1635 EXP_CHECK_MD_OP(exp, get_fid_from_lsm);
1636 EXP_MD_COUNTER_INCREMENT(exp, get_fid_from_lsm);
1637 rc = MDP(exp->exp_obd, get_fid_from_lsm)(exp, lsm, name, namelen, fid);
1642 /* Unpack an MD struct from disk to in-memory format.
1643 * Returns +ve size of unpacked MD (0 for free), or -ve error.
1645 * If *plsm != NULL and lmm == NULL then *lsm will be freed.
1646 * If *plsm == NULL then it will be allocated.
1648 static inline int md_unpackmd(struct obd_export *exp,
1649 struct lmv_stripe_md **plsm,
1650 const union lmv_mds_md *lmm, size_t lmm_size)
1654 EXP_CHECK_MD_OP(exp, unpackmd);
1655 EXP_MD_COUNTER_INCREMENT(exp, unpackmd);
1656 rc = MDP(exp->exp_obd, unpackmd)(exp, plsm, lmm, lmm_size);
1660 /* OBD Metadata Support */
1662 extern int obd_init_caches(void);
1663 extern void obd_cleanup_caches(void);
1665 /* support routines */
1666 extern struct kmem_cache *obdo_cachep;
1668 #define OBDO_ALLOC(ptr) \
1670 OBD_SLAB_ALLOC_PTR_GFP((ptr), obdo_cachep, GFP_NOFS); \
1673 #define OBDO_FREE(ptr) \
1675 OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
1679 typedef int (*register_lwp_cb)(void *data);
1681 struct lwp_register_item {
1682 struct obd_export **lri_exp;
1683 register_lwp_cb lri_cb_func;
1685 struct list_head lri_list;
1686 char lri_name[MTI_NAME_MAXLEN];
1689 /* I'm as embarrassed about this as you are.
1691 * <shaver> // XXX do not look into _superhack with remaining eye
1692 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
1693 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
1696 #ifdef HAVE_SERVER_SUPPORT
1697 int lustre_register_lwp_item(const char *lwpname, struct obd_export **exp,
1698 register_lwp_cb cb_func, void *cb_data);
1699 void lustre_deregister_lwp_item(struct obd_export **exp);
1700 struct obd_export *lustre_find_lwp_by_index(const char *dev, __u32 idx);
1701 void lustre_notify_lwp_list(struct obd_export *exp);
1702 int tgt_name2lwp_name(const char *tgt_name, char *lwp_name, int len, __u32 idx);
1703 #endif /* HAVE_SERVER_SUPPORT */
1704 int lustre_register_fs(void);
1705 int lustre_unregister_fs(void);
1706 int lustre_check_exclusion(struct super_block *sb, char *svname);
1709 extern void obd_sysctl_init (void);
1710 extern void obd_sysctl_clean (void);
1713 typedef __u8 class_uuid_t[16];
1714 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
1717 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
1718 int class_add_uuid(const char *uuid, __u64 nid);
1719 int class_del_uuid (const char *uuid);
1720 int class_check_uuid(struct obd_uuid *uuid, __u64 nid);
1721 void class_init_uuidlist(void);
1722 void class_exit_uuidlist(void);
1725 #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
1729 void statfs_pack(struct obd_statfs *osfs, struct kstatfs *sfs);
1730 void statfs_unpack(struct kstatfs *sfs, struct obd_statfs *osfs);
1732 /* root squash info */
1733 struct rw_semaphore;
1734 struct root_squash_info {
1737 struct list_head rsi_nosquash_nids;
1738 struct rw_semaphore rsi_sem;
1741 int server_name2index(const char *svname, __u32 *idx, const char **endptr);
1743 /* linux-module.c */
1744 extern struct miscdevice obd_psdev;
1745 int class_procfs_init(void);
1746 int class_procfs_clean(void);
1748 #endif /* __LINUX_OBD_CLASS_H */