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.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2016, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
36 #include <obd_support.h>
37 #include <lustre_import.h>
38 #include <lustre_net.h>
40 #include <lustre_lib.h>
41 #include <lustre/lustre_idl.h>
42 #include <lprocfs_status.h>
44 #define OBD_STATFS_NODELAY 0x0001 /* requests should be send without delay
45 * and resends for avoid deadlocks */
46 #define OBD_STATFS_FROM_CACHE 0x0002 /* the statfs callback should not update
48 #define OBD_STATFS_FOR_MDT0 0x0004 /* The statfs is only for retrieving
49 * information from MDT0. */
51 extern rwlock_t obd_dev_lock;
53 /* OBD Operations Declarations */
54 extern struct obd_device *class_conn2obd(struct lustre_handle *);
55 extern struct obd_device *class_exp2obd(struct obd_export *);
56 extern int class_handle_ioctl(unsigned int cmd, unsigned long arg);
57 extern int lustre_get_jobid(char *jobid);
59 struct lu_device_type;
62 struct obd_export *class_conn2export(struct lustre_handle *);
63 int class_register_type(struct obd_ops *, struct md_ops *, bool enable_proc,
64 struct lprocfs_vars *module_vars,
65 const char *nm, struct lu_device_type *ldt);
66 int class_unregister_type(const char *nm);
68 struct obd_device *class_newdev(const char *type_name, const char *name);
69 void class_release_dev(struct obd_device *obd);
71 int class_name2dev(const char *name);
72 struct obd_device *class_name2obd(const char *name);
73 int class_uuid2dev(struct obd_uuid *uuid);
74 struct obd_device *class_uuid2obd(struct obd_uuid *uuid);
75 void class_obd_list(void);
76 struct obd_device * class_find_client_obd(struct obd_uuid *tgt_uuid,
77 const char * typ_name,
78 struct obd_uuid *grp_uuid);
79 struct obd_device * class_devices_in_group(struct obd_uuid *grp_uuid,
81 struct obd_device * class_num2obd(int num);
82 int get_devices_count(void);
84 int class_notify_sptlrpc_conf(const char *fsname, int namelen);
86 char *obd_export_nid2str(struct obd_export *exp);
88 int obd_export_evict_by_nid(struct obd_device *obd, const char *nid);
89 int obd_export_evict_by_uuid(struct obd_device *obd, const char *uuid);
90 int obd_connect_flags2str(char *page, int count, __u64 flags, __u64 flags2,
93 int obd_zombie_impexp_init(void);
94 void obd_zombie_impexp_stop(void);
95 void obd_zombie_impexp_cull(void);
96 void obd_zombie_barrier(void);
97 void obd_exports_barrier(struct obd_device *obd);
98 int kuc_len(int payload_len);
99 struct kuc_hdr * kuc_ptr(void *p);
100 void *kuc_alloc(int payload_len, int transport, int type);
101 void kuc_free(void *p, int payload_len);
102 int obd_get_request_slot(struct client_obd *cli);
103 void obd_put_request_slot(struct client_obd *cli);
104 __u32 obd_get_max_rpcs_in_flight(struct client_obd *cli);
105 int obd_set_max_rpcs_in_flight(struct client_obd *cli, __u32 max);
106 __u16 obd_get_max_mod_rpcs_in_flight(struct client_obd *cli);
107 int obd_set_max_mod_rpcs_in_flight(struct client_obd *cli, __u16 max);
108 int obd_mod_rpc_stats_seq_show(struct client_obd *cli, struct seq_file *seq);
110 __u16 obd_get_mod_rpc_slot(struct client_obd *cli, __u32 opc,
111 struct lookup_intent *it);
112 void obd_put_mod_rpc_slot(struct client_obd *cli, __u32 opc,
113 struct lookup_intent *it, __u16 tag);
117 typedef int (*llog_cb_t)(const struct lu_env *, struct llog_handle *,
118 struct llog_rec_hdr *, void *);
120 struct obd_export *obd_stale_export_get(void);
121 void obd_stale_export_put(struct obd_export *exp);
122 void obd_stale_export_adjust(struct obd_export *exp);
125 struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg,
126 const char *new_name);
127 int class_process_config(struct lustre_cfg *lcfg);
128 int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
129 struct lustre_cfg *lcfg, void *data);
130 int class_attach(struct lustre_cfg *lcfg);
131 int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
132 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg);
133 int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg);
134 struct obd_device *class_incref(struct obd_device *obd,
135 const char *scope, const void *source);
136 void class_decref(struct obd_device *obd,
137 const char *scope, const void *source);
138 void dump_exports(struct obd_device *obd, int locks, int debug_level);
139 int class_config_llog_handler(const struct lu_env *env,
140 struct llog_handle *handle,
141 struct llog_rec_hdr *rec, void *data);
142 int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg);
144 #define CFG_F_START 0x01 /* Set when we start updating from a log */
145 #define CFG_F_MARKER 0x02 /* We are within a maker */
146 #define CFG_F_SKIP 0x04 /* We should ignore this cfg command */
147 #define CFG_F_COMPAT146 0x08 /* Allow old-style logs */
148 #define CFG_F_EXCLUDE 0x10 /* OST exclusion list */
150 /* Passed as data param to class_config_parse_llog */
151 struct config_llog_instance {
154 struct super_block *cfg_sb;
155 struct obd_uuid cfg_uuid;
156 llog_cb_t cfg_callback;
157 int cfg_last_idx; /* for partial llog processing */
162 int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
163 char *name, struct config_llog_instance *cfg);
165 #define CONFIG_SUB_SPTLRPC 0x01
166 #define CONFIG_SUB_RECOVER 0x02
167 #define CONFIG_SUB_PARAMS 0x04
168 #define CONFIG_SUB_NODEMAP 0x08
169 #define CONFIG_SUB_BARRIER 0x10
171 /* Sub clds should be attached to the config_llog_data when processing
172 * config log for client or server target. */
173 #define CONFIG_SUB_CLIENT (CONFIG_SUB_SPTLRPC | CONFIG_SUB_RECOVER | \
175 #define CONFIG_SUB_SERVER (CONFIG_SUB_CLIENT | CONFIG_SUB_NODEMAP | \
178 #define PARAMS_FILENAME "params"
179 #define BARRIER_FILENAME "barrier"
180 #define LCTL_UPCALL "lctl"
182 static inline bool logname_is_barrier(const char *logname)
186 /* logname for barrier is "fsname-barrier" */
187 ptr = strstr(logname, BARRIER_FILENAME);
188 if (ptr && (ptr - logname) >= 2 &&
189 *(ptr - 1) == '-' && *(ptr + 7) == '\0')
195 /* list of active configuration logs */
196 struct config_llog_data {
197 struct ldlm_res_id cld_resid;
198 struct config_llog_instance cld_cfg;
199 struct list_head cld_list_chain;
200 atomic_t cld_refcount;
201 struct config_llog_data *cld_sptlrpc;/* depended sptlrpc log */
202 struct config_llog_data *cld_params; /* common parameters log */
203 struct config_llog_data *cld_recover;/* imperative recover log */
204 struct config_llog_data *cld_nodemap;/* nodemap log */
205 struct config_llog_data *cld_barrier;/* barrier log (for MDT only) */
206 struct obd_export *cld_mgcexp;
207 struct mutex cld_lock;
209 unsigned int cld_stopping:1, /* we were told to stop
211 cld_lostlock:1; /* lock not requeued */
215 struct lustre_profile {
216 struct list_head lp_list;
221 bool lp_list_deleted;
224 struct lustre_profile *class_get_profile(const char * prof);
225 void class_del_profile(const char *prof);
226 void class_put_profile(struct lustre_profile *lprof);
227 void class_del_profiles(void);
230 #if LUSTRE_TRACKS_LOCK_EXP_REFS
232 void __class_export_add_lock_ref(struct obd_export *, struct ldlm_lock *);
233 void __class_export_del_lock_ref(struct obd_export *, struct ldlm_lock *);
234 extern void (*class_export_dump_hook)(struct obd_export *);
238 #define __class_export_add_lock_ref(exp, lock) do {} while(0)
239 #define __class_export_del_lock_ref(exp, lock) do {} while(0)
243 #define class_export_rpc_inc(exp) \
245 atomic_inc(&(exp)->exp_rpc_count); \
246 CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \
247 (exp), atomic_read(&(exp)->exp_rpc_count)); \
250 #define class_export_rpc_dec(exp) \
252 LASSERT_ATOMIC_POS(&exp->exp_rpc_count); \
253 atomic_dec(&(exp)->exp_rpc_count); \
254 CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \
255 (exp), atomic_read(&(exp)->exp_rpc_count)); \
258 #define class_export_lock_get(exp, lock) \
260 atomic_inc(&(exp)->exp_locks_count); \
261 __class_export_add_lock_ref(exp, lock); \
262 CDEBUG(D_INFO, "lock GETting export %p : new locks_count %d\n", \
263 (exp), atomic_read(&(exp)->exp_locks_count)); \
264 class_export_get(exp); \
267 #define class_export_lock_put(exp, lock) \
269 LASSERT_ATOMIC_POS(&exp->exp_locks_count); \
270 atomic_dec(&(exp)->exp_locks_count); \
271 __class_export_del_lock_ref(exp, lock); \
272 CDEBUG(D_INFO, "lock PUTting export %p : new locks_count %d\n", \
273 (exp), atomic_read(&(exp)->exp_locks_count)); \
274 class_export_put(exp); \
277 #define class_export_cb_get(exp) \
279 atomic_inc(&(exp)->exp_cb_count); \
280 CDEBUG(D_INFO, "callback GETting export %p : new cb_count %d\n",\
281 (exp), atomic_read(&(exp)->exp_cb_count)); \
282 class_export_get(exp); \
285 #define class_export_cb_put(exp) \
287 LASSERT_ATOMIC_POS(&exp->exp_cb_count); \
288 atomic_dec(&(exp)->exp_cb_count); \
289 CDEBUG(D_INFO, "callback PUTting export %p : new cb_count %d\n",\
290 (exp), atomic_read(&(exp)->exp_cb_count)); \
291 class_export_put(exp); \
295 struct obd_export *class_export_get(struct obd_export *exp);
296 void class_export_put(struct obd_export *exp);
297 struct obd_export *class_new_export(struct obd_device *obddev,
298 struct obd_uuid *cluuid);
299 void class_unlink_export(struct obd_export *exp);
301 struct obd_import *class_import_get(struct obd_import *);
302 void class_import_put(struct obd_import *);
303 struct obd_import *class_new_import(struct obd_device *obd);
304 void class_destroy_import(struct obd_import *exp);
306 struct obd_type *class_search_type(const char *name);
307 struct obd_type *class_get_type(const char *name);
308 void class_put_type(struct obd_type *type);
309 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
310 struct obd_uuid *cluuid);
311 int class_disconnect(struct obd_export *exp);
312 void class_fail_export(struct obd_export *exp);
313 int class_connected_export(struct obd_export *exp);
314 void class_disconnect_exports(struct obd_device *obddev);
315 int class_manual_cleanup(struct obd_device *obd);
316 void class_disconnect_stale_exports(struct obd_device *,
317 int (*test_export)(struct obd_export *));
318 static inline enum obd_option exp_flags_from_obd(struct obd_device *obd)
320 return ((obd->obd_fail ? OBD_OPT_FAILOVER : 0) |
321 (obd->obd_force ? OBD_OPT_FORCE : 0) |
322 (obd->obd_abort_recovery ? OBD_OPT_ABORT_RECOV : 0) |
326 #ifdef HAVE_SERVER_SUPPORT
327 static inline struct lu_target *class_exp2tgt(struct obd_export *exp)
329 LASSERT(exp->exp_obd);
330 if (exp->exp_obd->u.obt.obt_magic != OBT_MAGIC)
332 return exp->exp_obd->u.obt.obt_lut;
335 static inline struct lr_server_data *class_server_data(struct obd_device *obd)
337 LASSERT(obd->u.obt.obt_lut);
338 return &obd->u.obt.obt_lut->lut_lsd;
346 void obdo_from_la(struct obdo *dst, const struct lu_attr *la, u64 valid);
347 void la_from_obdo(struct lu_attr *la, const struct obdo *dst, u64 valid);
349 void obdo_cpy_md(struct obdo *dst, const struct obdo *src, u64 valid);
350 void obdo_to_ioobj(const struct obdo *oa, struct obd_ioobj *ioobj);
352 #define OBT(dev) (dev)->obd_type
353 #define OBP(dev, op) (dev)->obd_type->typ_dt_ops->o_ ## op
354 #define MDP(dev, op) (dev)->obd_type->typ_md_ops->m_ ## op
355 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
357 /* Ensure obd_setup: used for cleanup which must be called
358 while obd is stopping */
359 #define OBD_CHECK_DEV(obd) \
362 CERROR("NULL device\n"); \
367 /* ensure obd_setup and !obd_stopping */
368 #define OBD_CHECK_DEV_ACTIVE(obd) \
370 OBD_CHECK_DEV(obd); \
371 if (!(obd)->obd_set_up || (obd)->obd_stopping) { \
372 CERROR("Device %d not setup\n", \
379 #ifdef CONFIG_PROC_FS
380 #define OBD_COUNTER_OFFSET(op) \
381 ((offsetof(struct obd_ops, o_ ## op) - \
382 offsetof(struct obd_ops, o_iocontrol)) \
383 / sizeof(((struct obd_ops *)NULL)->o_iocontrol))
385 /* The '- 1' below is for o_owner. */
386 #define NUM_OBD_STATS \
387 (sizeof(struct obd_ops) / \
388 sizeof(((struct obd_ops *)NULL)->o_iocontrol) - 1)
390 #define OBD_COUNTER_INCREMENT(obd, op) \
391 lprocfs_counter_incr((obd)->obd_stats, \
392 (obd)->obd_cntr_base + OBD_COUNTER_OFFSET(op))
394 #define EXP_COUNTER_INCREMENT(exp, op) \
397 _off = (exp)->exp_obd->obd_cntr_base + OBD_COUNTER_OFFSET(op); \
398 lprocfs_counter_incr((exp)->exp_obd->obd_stats, _off); \
399 if ((exp)->exp_obd->obd_uses_nid_stats && \
400 (exp)->exp_nid_stats != NULL) \
401 lprocfs_counter_incr((exp)->exp_nid_stats->nid_stats, \
405 #define _MD_COUNTER_OFFSET(m_op) \
406 ((offsetof(struct md_ops, m_op) - \
407 offsetof(struct md_ops, MD_STATS_FIRST_OP)) / \
408 sizeof(((struct md_ops *)NULL)->MD_STATS_FIRST_OP))
410 #define MD_COUNTER_OFFSET(op) _MD_COUNTER_OFFSET(m_ ## op)
412 #define NUM_MD_STATS \
413 (_MD_COUNTER_OFFSET(MD_STATS_LAST_OP) - \
414 _MD_COUNTER_OFFSET(MD_STATS_FIRST_OP) + 1)
416 /* Note that we only increment md counters for ops whose offset is less
417 * than NUM_MD_STATS. This is explained in a comment in the definition
418 * of struct md_ops. */
419 #define EXP_MD_COUNTER_INCREMENT(exp, op) \
421 if (MD_COUNTER_OFFSET(op) < NUM_MD_STATS) \
422 lprocfs_counter_incr((exp)->exp_obd->obd_md_stats, \
423 (exp)->exp_obd->obd_md_cntr_base + \
424 MD_COUNTER_OFFSET(op)); \
428 #define OBD_COUNTER_OFFSET(op)
429 #define OBD_COUNTER_INCREMENT(obd, op)
430 #define EXP_COUNTER_INCREMENT(exp, op)
431 #define EXP_MD_COUNTER_INCREMENT(exp, op)
434 static inline int lprocfs_nid_ldlm_stats_init(struct nid_stat* tmp)
436 /* Always add in ldlm_stats */
437 tmp->nid_ldlm_stats =
438 lprocfs_alloc_stats(LDLM_LAST_OPC - LDLM_FIRST_OPC,
439 LPROCFS_STATS_FLAG_NOPERCPU);
440 if (tmp->nid_ldlm_stats == NULL)
443 lprocfs_init_ldlm_stats(tmp->nid_ldlm_stats);
445 return lprocfs_register_stats(tmp->nid_proc, "ldlm_stats",
446 tmp->nid_ldlm_stats);
449 #define EXP_CHECK_MD_OP(exp, op) \
451 if ((exp) == NULL) { \
452 CERROR("obd_" #op ": NULL export\n"); \
455 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
456 CERROR("obd_" #op ": cleaned up obd\n"); \
457 RETURN(-EOPNOTSUPP); \
459 if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
460 CERROR("%s: obd_" #op ": dev %d no operation\n", \
461 (exp)->exp_obd->obd_name, \
462 (exp)->exp_obd->obd_minor); \
463 RETURN(-EOPNOTSUPP); \
468 #define OBD_CHECK_DT_OP(obd, op, err) \
470 if (!OBT(obd) || !OBP((obd), op)) { \
472 CERROR("%s: no obd_" #op " operation\n", \
478 #define EXP_CHECK_DT_OP(exp, op) \
480 if ((exp) == NULL) { \
481 CERROR("obd_" #op ": NULL export\n"); \
484 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
485 CERROR("obd_" #op ": cleaned up obd\n"); \
486 RETURN(-EOPNOTSUPP); \
488 OBD_CHECK_DT_OP((exp)->exp_obd, op, -EOPNOTSUPP); \
491 #define CTXT_CHECK_OP(ctxt, op, err) \
493 if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
495 CERROR("%s: no lop_" #op "operation\n", \
496 ctxt->loc_obd->obd_name); \
501 static inline int class_devno_max(void)
503 return MAX_OBD_DEVICES;
506 static inline int obd_get_info(const struct lu_env *env, struct obd_export *exp,
507 __u32 keylen, void *key,
508 __u32 *vallen, void *val)
513 EXP_CHECK_DT_OP(exp, get_info);
514 EXP_COUNTER_INCREMENT(exp, get_info);
516 rc = OBP(exp->exp_obd, get_info)(env, exp, keylen, key, vallen, val);
520 static inline int obd_set_info_async(const struct lu_env *env,
521 struct obd_export *exp,
522 __u32 keylen, void *key,
523 __u32 vallen, void *val,
524 struct ptlrpc_request_set *set)
529 EXP_CHECK_DT_OP(exp, set_info_async);
530 EXP_COUNTER_INCREMENT(exp, set_info_async);
532 rc = OBP(exp->exp_obd, set_info_async)(env, exp, keylen, key, vallen,
538 * obd-lu integration.
540 * Functionality is being moved into new lu_device-based layering, but some
541 * pieces of configuration process are still based on obd devices.
543 * Specifically, lu_device_type_operations::ldto_device_alloc() methods fully
544 * subsume ->o_setup() methods of obd devices they replace. The same for
545 * lu_device_operations::ldo_process_config() and ->o_process_config(). As a
546 * result, obd_setup() and obd_process_config() branch and call one XOR
549 * Yet neither lu_device_type_operations::ldto_device_fini() nor
550 * lu_device_type_operations::ldto_device_free() fully implement the
551 * functionality of ->o_precleanup() and ->o_cleanup() they override. Hence,
552 * obd_precleanup() and obd_cleanup() call both lu_device and obd operations.
555 #define DECLARE_LU_VARS(ldt, d) \
556 struct lu_device_type *ldt; \
559 static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
562 DECLARE_LU_VARS(ldt, d);
565 ldt = obd->obd_type->typ_lu;
567 struct lu_context session_ctx;
569 lu_context_init(&session_ctx, LCT_SESSION | LCT_SERVER_SESSION);
570 session_ctx.lc_thread = NULL;
571 lu_context_enter(&session_ctx);
573 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
575 env.le_ses = &session_ctx;
576 d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
585 lu_context_exit(&session_ctx);
586 lu_context_fini(&session_ctx);
589 OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
590 OBD_COUNTER_INCREMENT(obd, setup);
591 rc = OBP(obd, setup)(obd, cfg);
596 static inline int obd_precleanup(struct obd_device *obd)
599 DECLARE_LU_VARS(ldt, d);
603 ldt = obd->obd_type->typ_lu;
605 if (ldt != NULL && d != NULL) {
608 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
610 ldt->ldt_ops->ldto_device_fini(&env, d);
614 OBD_CHECK_DT_OP(obd, precleanup, 0);
615 OBD_COUNTER_INCREMENT(obd, precleanup);
617 rc = OBP(obd, precleanup)(obd);
621 static inline int obd_cleanup(struct obd_device *obd)
624 DECLARE_LU_VARS(ldt, d);
629 ldt = obd->obd_type->typ_lu;
631 if (ldt != NULL && d != NULL) {
634 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
636 ldt->ldt_ops->ldto_device_free(&env, d);
638 obd->obd_lu_dev = NULL;
641 OBD_CHECK_DT_OP(obd, cleanup, 0);
642 OBD_COUNTER_INCREMENT(obd, cleanup);
644 rc = OBP(obd, cleanup)(obd);
648 static inline void obd_cleanup_client_import(struct obd_device *obd)
652 /* If we set up but never connected, the
653 client import will not have been cleaned. */
654 down_write(&obd->u.cli.cl_sem);
655 if (obd->u.cli.cl_import) {
656 struct obd_import *imp;
657 imp = obd->u.cli.cl_import;
658 CDEBUG(D_CONFIG, "%s: client import never connected\n",
660 ptlrpc_invalidate_import(imp);
661 client_destroy_import(imp);
662 obd->u.cli.cl_import = NULL;
664 up_write(&obd->u.cli.cl_sem);
670 obd_process_config(struct obd_device *obd, int datalen, void *data)
673 DECLARE_LU_VARS(ldt, d);
678 obd->obd_process_conf = 1;
679 ldt = obd->obd_type->typ_lu;
681 if (ldt != NULL && d != NULL) {
684 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
686 rc = d->ld_ops->ldo_process_config(&env, d, data);
690 OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
691 rc = OBP(obd, process_config)(obd, datalen, data);
693 OBD_COUNTER_INCREMENT(obd, process_config);
694 obd->obd_process_conf = 0;
699 static inline int obd_create(const struct lu_env *env, struct obd_export *exp,
705 EXP_CHECK_DT_OP(exp, create);
706 EXP_COUNTER_INCREMENT(exp, create);
708 rc = OBP(exp->exp_obd, create)(env, exp, obdo);
712 static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp,
718 EXP_CHECK_DT_OP(exp, destroy);
719 EXP_COUNTER_INCREMENT(exp, destroy);
721 rc = OBP(exp->exp_obd, destroy)(env, exp, obdo);
725 static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp,
731 EXP_CHECK_DT_OP(exp, getattr);
732 EXP_COUNTER_INCREMENT(exp, getattr);
733 rc = OBP(exp->exp_obd, getattr)(env, exp, oa);
738 static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp,
744 EXP_CHECK_DT_OP(exp, setattr);
745 EXP_COUNTER_INCREMENT(exp, setattr);
746 rc = OBP(exp->exp_obd, setattr)(env, exp, oa);
751 static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
754 struct obd_device *obd = imp->imp_obd;
758 OBD_CHECK_DEV_ACTIVE(obd);
759 OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
760 OBD_COUNTER_INCREMENT(obd, add_conn);
762 rc = OBP(obd, add_conn)(imp, uuid, priority);
766 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
768 struct obd_device *obd = imp->imp_obd;
772 OBD_CHECK_DEV_ACTIVE(obd);
773 OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
774 OBD_COUNTER_INCREMENT(obd, del_conn);
776 rc = OBP(obd, del_conn)(imp, uuid);
780 static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp)
782 struct obd_uuid *uuid;
785 OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL);
786 EXP_COUNTER_INCREMENT(exp, get_uuid);
788 uuid = OBP(exp->exp_obd, get_uuid)(exp);
792 /** Create a new /a exp on device /a obd for the uuid /a cluuid
793 * @param exp New export handle
794 * @param d Connect data, supported flags are set, flags also understood
795 * by obd are returned.
797 static inline int obd_connect(const struct lu_env *env,
798 struct obd_export **exp,struct obd_device *obd,
799 struct obd_uuid *cluuid,
800 struct obd_connect_data *data,
804 __u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
808 OBD_CHECK_DEV_ACTIVE(obd);
809 OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
810 OBD_COUNTER_INCREMENT(obd, connect);
812 rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata);
813 /* check that only subset is granted */
814 LASSERT(ergo(data != NULL, (data->ocd_connect_flags & ocf) ==
815 data->ocd_connect_flags));
819 static inline int obd_reconnect(const struct lu_env *env,
820 struct obd_export *exp,
821 struct obd_device *obd,
822 struct obd_uuid *cluuid,
823 struct obd_connect_data *d,
827 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
832 OBD_CHECK_DEV_ACTIVE(obd);
833 OBD_CHECK_DT_OP(obd, reconnect, 0);
834 OBD_COUNTER_INCREMENT(obd, reconnect);
836 rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
837 /* check that only subset is granted */
838 LASSERT(ergo(d != NULL,
839 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
843 static inline int obd_disconnect(struct obd_export *exp)
848 EXP_CHECK_DT_OP(exp, disconnect);
849 EXP_COUNTER_INCREMENT(exp, disconnect);
851 rc = OBP(exp->exp_obd, disconnect)(exp);
855 static inline int obd_fid_init(struct obd_device *obd, struct obd_export *exp,
856 enum lu_cli_type type)
861 OBD_CHECK_DT_OP(obd, fid_init, 0);
862 OBD_COUNTER_INCREMENT(obd, fid_init);
864 rc = OBP(obd, fid_init)(obd, exp, type);
868 static inline int obd_fid_fini(struct obd_device *obd)
873 OBD_CHECK_DT_OP(obd, fid_fini, 0);
874 OBD_COUNTER_INCREMENT(obd, fid_fini);
876 rc = OBP(obd, fid_fini)(obd);
880 static inline int obd_fid_alloc(const struct lu_env *env,
881 struct obd_export *exp,
883 struct md_op_data *op_data)
888 EXP_CHECK_DT_OP(exp, fid_alloc);
889 EXP_COUNTER_INCREMENT(exp, fid_alloc);
891 rc = OBP(exp->exp_obd, fid_alloc)(env, exp, fid, op_data);
895 static inline int obd_ping(const struct lu_env *env, struct obd_export *exp)
900 OBD_CHECK_DT_OP(exp->exp_obd, ping, 0);
901 EXP_COUNTER_INCREMENT(exp, ping);
903 rc = OBP(exp->exp_obd, ping)(env, exp);
907 static inline int obd_pool_new(struct obd_device *obd, char *poolname)
912 OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP);
913 OBD_COUNTER_INCREMENT(obd, pool_new);
915 rc = OBP(obd, pool_new)(obd, poolname);
919 static inline int obd_pool_del(struct obd_device *obd, char *poolname)
924 OBD_CHECK_DT_OP(obd, pool_del, -EOPNOTSUPP);
925 OBD_COUNTER_INCREMENT(obd, pool_del);
927 rc = OBP(obd, pool_del)(obd, poolname);
931 static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname)
936 OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP);
937 OBD_COUNTER_INCREMENT(obd, pool_add);
939 rc = OBP(obd, pool_add)(obd, poolname, ostname);
943 static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname)
948 OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP);
949 OBD_COUNTER_INCREMENT(obd, pool_rem);
951 rc = OBP(obd, pool_rem)(obd, poolname, ostname);
955 static inline void obd_getref(struct obd_device *obd)
958 if (OBT(obd) && OBP(obd, getref)) {
959 OBD_COUNTER_INCREMENT(obd, getref);
960 OBP(obd, getref)(obd);
965 static inline void obd_putref(struct obd_device *obd)
968 if (OBT(obd) && OBP(obd, putref)) {
969 OBD_COUNTER_INCREMENT(obd, putref);
970 OBP(obd, putref)(obd);
975 static inline int obd_init_export(struct obd_export *exp)
980 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
981 OBP((exp)->exp_obd, init_export))
982 rc = OBP(exp->exp_obd, init_export)(exp);
986 static inline int obd_destroy_export(struct obd_export *exp)
989 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
990 OBP((exp)->exp_obd, destroy_export))
991 OBP(exp->exp_obd, destroy_export)(exp);
995 /* @max_age is the oldest time in jiffies that we accept using a cached data.
996 * If the cache is older than @max_age we will get a new value from the
997 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
998 static inline int obd_statfs_async(struct obd_export *exp,
999 struct obd_info *oinfo,
1001 struct ptlrpc_request_set *rqset)
1004 struct obd_device *obd;
1007 if (exp == NULL || exp->exp_obd == NULL)
1011 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1012 OBD_COUNTER_INCREMENT(obd, statfs);
1014 CDEBUG(D_SUPER, "%s: osfs %p age %llu, max_age %llu\n",
1015 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
1016 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1017 rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset);
1019 CDEBUG(D_SUPER, "%s: use %p cache blocks %llu/%llu objects %llu/%llu\n",
1020 obd->obd_name, &obd->obd_osfs,
1021 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1022 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1023 spin_lock(&obd->obd_osfs_lock);
1024 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
1025 spin_unlock(&obd->obd_osfs_lock);
1026 oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
1027 if (oinfo->oi_cb_up)
1028 oinfo->oi_cb_up(oinfo, 0);
1033 static inline int obd_statfs_rqset(struct obd_export *exp,
1034 struct obd_statfs *osfs, __u64 max_age,
1037 struct ptlrpc_request_set *set = NULL;
1038 struct obd_info oinfo = {
1046 set = ptlrpc_prep_set();
1050 rc = obd_statfs_async(exp, &oinfo, max_age, set);
1052 rc = ptlrpc_set_wait(set);
1054 ptlrpc_set_destroy(set);
1059 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1060 * If the cache is older than @max_age we will get a new value from the
1061 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1062 static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
1063 struct obd_statfs *osfs, __u64 max_age,
1067 struct obd_device *obd = exp->exp_obd;
1073 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1074 OBD_COUNTER_INCREMENT(obd, statfs);
1076 CDEBUG(D_SUPER, "osfs %llu, max_age %llu\n",
1077 obd->obd_osfs_age, max_age);
1078 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1079 rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
1081 spin_lock(&obd->obd_osfs_lock);
1082 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1083 obd->obd_osfs_age = cfs_time_current_64();
1084 spin_unlock(&obd->obd_osfs_lock);
1087 CDEBUG(D_SUPER, "%s: use %p cache blocks %llu/%llu"
1088 " objects %llu/%llu\n",
1089 obd->obd_name, &obd->obd_osfs,
1090 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1091 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1092 spin_lock(&obd->obd_osfs_lock);
1093 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1094 spin_unlock(&obd->obd_osfs_lock);
1099 static inline int obd_preprw(const struct lu_env *env, int cmd,
1100 struct obd_export *exp, struct obdo *oa,
1101 int objcount, struct obd_ioobj *obj,
1102 struct niobuf_remote *remote, int *pages,
1103 struct niobuf_local *local)
1108 EXP_CHECK_DT_OP(exp, preprw);
1109 EXP_COUNTER_INCREMENT(exp, preprw);
1110 rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote,
1116 static inline int obd_commitrw(const struct lu_env *env, int cmd,
1117 struct obd_export *exp, struct obdo *oa,
1118 int objcount, struct obd_ioobj *obj,
1119 struct niobuf_remote *rnb, int pages,
1120 struct niobuf_local *local, int rc)
1124 EXP_CHECK_DT_OP(exp, commitrw);
1125 EXP_COUNTER_INCREMENT(exp, commitrw);
1126 rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj,
1127 rnb, pages, local, rc);
1132 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1133 int len, void *karg, void __user *uarg)
1138 EXP_CHECK_DT_OP(exp, iocontrol);
1139 EXP_COUNTER_INCREMENT(exp, iocontrol);
1141 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1145 static inline void obd_import_event(struct obd_device *obd,
1146 struct obd_import *imp,
1147 enum obd_import_event event)
1151 CERROR("NULL device\n");
1155 if (obd->obd_set_up && OBP(obd, import_event)) {
1156 OBD_COUNTER_INCREMENT(obd, import_event);
1157 OBP(obd, import_event)(obd, imp, event);
1162 static inline int obd_notify(struct obd_device *obd,
1163 struct obd_device *watched,
1164 enum obd_notify_event ev)
1170 if (!obd->obd_set_up) {
1171 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1175 if (!OBP(obd, notify)) {
1176 CDEBUG(D_HA, "obd %s has no notify handler\n", obd->obd_name);
1180 OBD_COUNTER_INCREMENT(obd, notify);
1181 rc = OBP(obd, notify)(obd, watched, ev);
1186 static inline int obd_notify_observer(struct obd_device *observer,
1187 struct obd_device *observed,
1188 enum obd_notify_event ev)
1192 struct obd_notify_upcall *onu;
1194 if (observer->obd_observer)
1195 rc = obd_notify(observer->obd_observer, observed, ev);
1198 * Also, call non-obd listener, if any
1200 onu = &observer->obd_upcall;
1201 if (onu->onu_upcall != NULL)
1202 rc2 = onu->onu_upcall(observer, observed, ev, onu->onu_owner);
1204 return rc ? rc : rc2;
1207 static inline int obd_quotactl(struct obd_export *exp,
1208 struct obd_quotactl *oqctl)
1213 EXP_CHECK_DT_OP(exp, quotactl);
1214 EXP_COUNTER_INCREMENT(exp, quotactl);
1216 rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl);
1220 static inline int obd_health_check(const struct lu_env *env,
1221 struct obd_device *obd)
1223 /* returns: 0 on healthy
1224 * >0 on unhealthy + reason code/flag
1225 * however the only suppored reason == 1 right now
1226 * We'll need to define some better reasons
1227 * or flags in the future.
1233 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1234 if (obd == NULL || !OBT(obd)) {
1235 CERROR("cleaned up obd\n");
1236 RETURN(-EOPNOTSUPP);
1238 if (!obd->obd_set_up || obd->obd_stopping)
1240 if (!OBP(obd, health_check))
1243 rc = OBP(obd, health_check)(env, obd);
1247 static inline int obd_register_observer(struct obd_device *obd,
1248 struct obd_device *observer)
1252 down_write(&obd->obd_observer_link_sem);
1253 if (obd->obd_observer && observer) {
1254 up_write(&obd->obd_observer_link_sem);
1257 obd->obd_observer = observer;
1258 up_write(&obd->obd_observer_link_sem);
1262 /* metadata helpers */
1263 static inline int md_get_root(struct obd_export *exp, const char *fileset,
1269 EXP_CHECK_MD_OP(exp, get_root);
1270 EXP_MD_COUNTER_INCREMENT(exp, get_root);
1271 rc = MDP(exp->exp_obd, get_root)(exp, fileset, fid);
1276 static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data,
1277 struct ptlrpc_request **request)
1281 EXP_CHECK_MD_OP(exp, getattr);
1282 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1283 rc = MDP(exp->exp_obd, getattr)(exp, op_data, request);
1287 static inline int md_null_inode(struct obd_export *exp,
1288 const struct lu_fid *fid)
1292 EXP_CHECK_MD_OP(exp, null_inode);
1293 EXP_MD_COUNTER_INCREMENT(exp, null_inode);
1294 rc = MDP(exp->exp_obd, null_inode)(exp, fid);
1298 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1299 struct md_open_data *mod,
1300 struct ptlrpc_request **request)
1304 EXP_CHECK_MD_OP(exp, close);
1305 EXP_MD_COUNTER_INCREMENT(exp, close);
1306 rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
1310 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1311 const void *data, size_t datalen, umode_t mode,
1312 uid_t uid, gid_t gid, cfs_cap_t cap_effective,
1313 __u64 rdev, struct ptlrpc_request **request)
1317 EXP_CHECK_MD_OP(exp, create);
1318 EXP_MD_COUNTER_INCREMENT(exp, create);
1319 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1320 uid, gid, cap_effective, rdev, request);
1324 static inline int md_enqueue(struct obd_export *exp,
1325 struct ldlm_enqueue_info *einfo,
1326 const union ldlm_policy_data *policy,
1327 struct md_op_data *op_data,
1328 struct lustre_handle *lockh,
1329 __u64 extra_lock_flags)
1333 EXP_CHECK_MD_OP(exp, enqueue);
1334 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1335 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, policy, op_data, lockh,
1340 static inline int md_getattr_name(struct obd_export *exp,
1341 struct md_op_data *op_data,
1342 struct ptlrpc_request **request)
1346 EXP_CHECK_MD_OP(exp, getattr_name);
1347 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1348 rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request);
1352 static inline int md_intent_lock(struct obd_export *exp,
1353 struct md_op_data *op_data,
1354 struct lookup_intent *it,
1355 struct ptlrpc_request **reqp,
1356 ldlm_blocking_callback cb_blocking,
1357 __u64 extra_lock_flags)
1361 EXP_CHECK_MD_OP(exp, intent_lock);
1362 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1363 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, it, reqp, cb_blocking,
1368 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1369 struct ptlrpc_request **request)
1373 EXP_CHECK_MD_OP(exp, link);
1374 EXP_MD_COUNTER_INCREMENT(exp, link);
1375 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1379 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1380 const char *old, size_t oldlen, const char *new,
1381 size_t newlen, struct ptlrpc_request **request)
1385 EXP_CHECK_MD_OP(exp, rename);
1386 EXP_MD_COUNTER_INCREMENT(exp, rename);
1387 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
1392 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
1393 void *ea, size_t ealen,
1394 struct ptlrpc_request **request)
1398 EXP_CHECK_MD_OP(exp, setattr);
1399 EXP_MD_COUNTER_INCREMENT(exp, setattr);
1400 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen, request);
1404 static inline int md_fsync(struct obd_export *exp, const struct lu_fid *fid,
1405 struct ptlrpc_request **request)
1410 EXP_CHECK_MD_OP(exp, fsync);
1411 EXP_MD_COUNTER_INCREMENT(exp, fsync);
1412 rc = MDP(exp->exp_obd, fsync)(exp, fid, request);
1417 static inline int md_read_page(struct obd_export *exp,
1418 struct md_op_data *op_data,
1419 struct md_callback *cb_op,
1421 struct page **ppage)
1425 EXP_CHECK_MD_OP(exp, read_page);
1426 EXP_MD_COUNTER_INCREMENT(exp, read_page);
1427 rc = MDP(exp->exp_obd, read_page)(exp, op_data, cb_op, hash_offset,
1432 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
1433 struct ptlrpc_request **request)
1437 EXP_CHECK_MD_OP(exp, unlink);
1438 EXP_MD_COUNTER_INCREMENT(exp, unlink);
1439 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
1443 static inline int md_get_lustre_md(struct obd_export *exp,
1444 struct ptlrpc_request *req,
1445 struct obd_export *dt_exp,
1446 struct obd_export *md_exp,
1447 struct lustre_md *md)
1450 EXP_CHECK_MD_OP(exp, get_lustre_md);
1451 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
1452 RETURN(MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md));
1455 static inline int md_free_lustre_md(struct obd_export *exp,
1456 struct lustre_md *md)
1459 EXP_CHECK_MD_OP(exp, free_lustre_md);
1460 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
1461 RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md));
1464 static inline int md_merge_attr(struct obd_export *exp,
1465 const struct lmv_stripe_md *lsm,
1466 struct cl_attr *attr,
1467 ldlm_blocking_callback cb)
1470 EXP_CHECK_MD_OP(exp, merge_attr);
1471 EXP_MD_COUNTER_INCREMENT(exp, merge_attr);
1472 RETURN(MDP(exp->exp_obd, merge_attr)(exp, lsm, attr, cb));
1475 static inline int md_setxattr(struct obd_export *exp, const struct lu_fid *fid,
1476 u64 valid, const char *name,
1477 const char *input, int input_size,
1478 int output_size, int flags, __u32 suppgid,
1479 struct ptlrpc_request **request)
1482 EXP_CHECK_MD_OP(exp, setxattr);
1483 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
1484 RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, valid, name, input,
1485 input_size, output_size, flags,
1489 static inline int md_getxattr(struct obd_export *exp, const struct lu_fid *fid,
1490 u64 valid, const char *name,
1491 const char *input, int input_size,
1492 int output_size, int flags,
1493 struct ptlrpc_request **request)
1496 EXP_CHECK_MD_OP(exp, getxattr);
1497 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
1498 RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, valid, name, input,
1499 input_size, output_size, flags,
1503 static inline int md_set_open_replay_data(struct obd_export *exp,
1504 struct obd_client_handle *och,
1505 struct lookup_intent *it)
1508 EXP_CHECK_MD_OP(exp, set_open_replay_data);
1509 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
1510 RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, it));
1513 static inline int md_clear_open_replay_data(struct obd_export *exp,
1514 struct obd_client_handle *och)
1517 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
1518 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
1519 RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och));
1522 static inline int md_set_lock_data(struct obd_export *exp,
1523 const struct lustre_handle *lockh,
1524 void *data, __u64 *bits)
1527 EXP_CHECK_MD_OP(exp, set_lock_data);
1528 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
1529 RETURN(MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits));
1533 int md_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
1534 union ldlm_policy_data *policy, enum ldlm_mode mode,
1535 enum ldlm_cancel_flags cancel_flags, void *opaque)
1540 EXP_CHECK_MD_OP(exp, cancel_unused);
1541 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
1543 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
1544 cancel_flags, opaque);
1548 static inline enum ldlm_mode md_lock_match(struct obd_export *exp, __u64 flags,
1549 const struct lu_fid *fid,
1550 enum ldlm_type type,
1551 union ldlm_policy_data *policy,
1552 enum ldlm_mode mode,
1553 struct lustre_handle *lockh)
1556 EXP_CHECK_MD_OP(exp, lock_match);
1557 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
1558 RETURN(MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
1559 policy, mode, lockh));
1562 static inline int md_init_ea_size(struct obd_export *exp, __u32 ea_size,
1566 EXP_CHECK_MD_OP(exp, init_ea_size);
1567 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
1568 RETURN(MDP(exp->exp_obd, init_ea_size)(exp, ea_size, def_ea_size));
1571 static inline int md_intent_getattr_async(struct obd_export *exp,
1572 struct md_enqueue_info *minfo)
1576 EXP_CHECK_MD_OP(exp, intent_getattr_async);
1577 EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
1578 rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo);
1582 static inline int md_revalidate_lock(struct obd_export *exp,
1583 struct lookup_intent *it,
1584 struct lu_fid *fid, __u64 *bits)
1588 EXP_CHECK_MD_OP(exp, revalidate_lock);
1589 EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
1590 rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits);
1594 static inline int md_get_fid_from_lsm(struct obd_export *exp,
1595 const struct lmv_stripe_md *lsm,
1596 const char *name, int namelen,
1601 EXP_CHECK_MD_OP(exp, get_fid_from_lsm);
1602 EXP_MD_COUNTER_INCREMENT(exp, get_fid_from_lsm);
1603 rc = MDP(exp->exp_obd, get_fid_from_lsm)(exp, lsm, name, namelen, fid);
1608 /* Unpack an MD struct from disk to in-memory format.
1609 * Returns +ve size of unpacked MD (0 for free), or -ve error.
1611 * If *plsm != NULL and lmm == NULL then *lsm will be freed.
1612 * If *plsm == NULL then it will be allocated.
1614 static inline int md_unpackmd(struct obd_export *exp,
1615 struct lmv_stripe_md **plsm,
1616 const union lmv_mds_md *lmm, size_t lmm_size)
1620 EXP_CHECK_MD_OP(exp, unpackmd);
1621 EXP_MD_COUNTER_INCREMENT(exp, unpackmd);
1622 rc = MDP(exp->exp_obd, unpackmd)(exp, plsm, lmm, lmm_size);
1626 /* OBD Metadata Support */
1628 extern int obd_init_caches(void);
1629 extern void obd_cleanup_caches(void);
1631 /* support routines */
1632 extern struct kmem_cache *obdo_cachep;
1634 #define OBDO_ALLOC(ptr) \
1636 OBD_SLAB_ALLOC_PTR_GFP((ptr), obdo_cachep, GFP_NOFS); \
1639 #define OBDO_FREE(ptr) \
1641 OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
1645 typedef int (*register_lwp_cb)(void *data);
1647 struct lwp_register_item {
1648 struct obd_export **lri_exp;
1649 register_lwp_cb lri_cb_func;
1651 struct list_head lri_list;
1653 char lri_name[MTI_NAME_MAXLEN];
1656 /* I'm as embarrassed about this as you are.
1658 * <shaver> // XXX do not look into _superhack with remaining eye
1659 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
1660 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
1663 #ifdef HAVE_SERVER_SUPPORT
1664 int lustre_register_lwp_item(const char *lwpname, struct obd_export **exp,
1665 register_lwp_cb cb_func, void *cb_data);
1666 void lustre_deregister_lwp_item(struct obd_export **exp);
1667 struct obd_export *lustre_find_lwp_by_index(const char *dev, __u32 idx);
1668 void lustre_notify_lwp_list(struct obd_export *exp);
1669 int tgt_name2lwp_name(const char *tgt_name, char *lwp_name, int len, __u32 idx);
1670 #endif /* HAVE_SERVER_SUPPORT */
1671 int lustre_register_fs(void);
1672 int lustre_unregister_fs(void);
1673 int lustre_check_exclusion(struct super_block *sb, char *svname);
1676 extern int obd_sysctl_init(void);
1677 extern void obd_sysctl_clean(void);
1680 typedef __u8 class_uuid_t[16];
1681 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
1684 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
1685 int class_add_uuid(const char *uuid, __u64 nid);
1686 int class_del_uuid (const char *uuid);
1687 int class_check_uuid(struct obd_uuid *uuid, __u64 nid);
1690 extern char obd_jobid_node[];
1693 #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
1697 void statfs_pack(struct obd_statfs *osfs, struct kstatfs *sfs);
1698 void statfs_unpack(struct kstatfs *sfs, struct obd_statfs *osfs);
1700 /* root squash info */
1701 struct rw_semaphore;
1702 struct root_squash_info {
1705 struct list_head rsi_nosquash_nids;
1706 struct rw_semaphore rsi_sem;
1709 int server_name2index(const char *svname, __u32 *idx, const char **endptr);
1711 /* linux-module.c */
1712 extern struct miscdevice obd_psdev;
1713 int class_procfs_init(void);
1714 int class_procfs_clean(void);
1716 #endif /* __LINUX_OBD_CLASS_H */