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 = lprocfs_alloc_stats(LDLM_LAST_OPC - LDLM_FIRST_OPC
438 ,LPROCFS_STATS_FLAG_NOPERCPU);
439 if (tmp->nid_ldlm_stats == NULL)
442 lprocfs_init_ldlm_stats(tmp->nid_ldlm_stats);
444 return lprocfs_register_stats(tmp->nid_proc, "ldlm_stats",
445 tmp->nid_ldlm_stats);
448 #define EXP_CHECK_MD_OP(exp, op) \
450 if ((exp) == NULL) { \
451 CERROR("obd_" #op ": NULL export\n"); \
454 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
455 CERROR("obd_" #op ": cleaned up obd\n"); \
456 RETURN(-EOPNOTSUPP); \
458 if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
459 CERROR("obd_" #op ": dev %s/%d no operation\n", \
460 (exp)->exp_obd->obd_name, \
461 (exp)->exp_obd->obd_minor); \
462 RETURN(-EOPNOTSUPP); \
467 #define OBD_CHECK_DT_OP(obd, op, err) \
469 if (!OBT(obd) || !OBP((obd), op)) { \
471 CERROR("obd_" #op ": dev %d no operation\n", \
477 #define EXP_CHECK_DT_OP(exp, op) \
479 if ((exp) == NULL) { \
480 CERROR("obd_" #op ": NULL export\n"); \
483 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
484 CERROR("obd_" #op ": cleaned up obd\n"); \
485 RETURN(-EOPNOTSUPP); \
487 if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
488 CERROR("obd_" #op ": dev %d no operation\n", \
489 (exp)->exp_obd->obd_minor); \
490 RETURN(-EOPNOTSUPP); \
494 #define CTXT_CHECK_OP(ctxt, op, err) \
496 if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
498 CERROR("lop_" #op ": dev %d no operation\n", \
499 ctxt->loc_obd->obd_minor); \
504 static inline int class_devno_max(void)
506 return MAX_OBD_DEVICES;
509 static inline int obd_get_info(const struct lu_env *env, struct obd_export *exp,
510 __u32 keylen, void *key,
511 __u32 *vallen, void *val)
516 EXP_CHECK_DT_OP(exp, get_info);
517 EXP_COUNTER_INCREMENT(exp, get_info);
519 rc = OBP(exp->exp_obd, get_info)(env, exp, keylen, key, vallen, val);
523 static inline int obd_set_info_async(const struct lu_env *env,
524 struct obd_export *exp,
525 __u32 keylen, void *key,
526 __u32 vallen, void *val,
527 struct ptlrpc_request_set *set)
532 EXP_CHECK_DT_OP(exp, set_info_async);
533 EXP_COUNTER_INCREMENT(exp, set_info_async);
535 rc = OBP(exp->exp_obd, set_info_async)(env, exp, keylen, key, vallen,
541 * obd-lu integration.
543 * Functionality is being moved into new lu_device-based layering, but some
544 * pieces of configuration process are still based on obd devices.
546 * Specifically, lu_device_type_operations::ldto_device_alloc() methods fully
547 * subsume ->o_setup() methods of obd devices they replace. The same for
548 * lu_device_operations::ldo_process_config() and ->o_process_config(). As a
549 * result, obd_setup() and obd_process_config() branch and call one XOR
552 * Yet neither lu_device_type_operations::ldto_device_fini() nor
553 * lu_device_type_operations::ldto_device_free() fully implement the
554 * functionality of ->o_precleanup() and ->o_cleanup() they override. Hence,
555 * obd_precleanup() and obd_cleanup() call both lu_device and obd operations.
558 #define DECLARE_LU_VARS(ldt, d) \
559 struct lu_device_type *ldt; \
562 static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
565 DECLARE_LU_VARS(ldt, d);
568 ldt = obd->obd_type->typ_lu;
570 struct lu_context session_ctx;
572 lu_context_init(&session_ctx, LCT_SESSION | LCT_SERVER_SESSION);
573 session_ctx.lc_thread = NULL;
574 lu_context_enter(&session_ctx);
576 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
578 env.le_ses = &session_ctx;
579 d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
588 lu_context_exit(&session_ctx);
589 lu_context_fini(&session_ctx);
592 OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
593 OBD_COUNTER_INCREMENT(obd, setup);
594 rc = OBP(obd, setup)(obd, cfg);
599 static inline int obd_precleanup(struct obd_device *obd)
602 DECLARE_LU_VARS(ldt, d);
606 ldt = obd->obd_type->typ_lu;
608 if (ldt != NULL && d != NULL) {
611 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
613 ldt->ldt_ops->ldto_device_fini(&env, d);
617 OBD_CHECK_DT_OP(obd, precleanup, 0);
618 OBD_COUNTER_INCREMENT(obd, precleanup);
620 rc = OBP(obd, precleanup)(obd);
624 static inline int obd_cleanup(struct obd_device *obd)
627 DECLARE_LU_VARS(ldt, d);
632 ldt = obd->obd_type->typ_lu;
634 if (ldt != NULL && d != NULL) {
637 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
639 ldt->ldt_ops->ldto_device_free(&env, d);
641 obd->obd_lu_dev = NULL;
644 OBD_CHECK_DT_OP(obd, cleanup, 0);
645 OBD_COUNTER_INCREMENT(obd, cleanup);
647 rc = OBP(obd, cleanup)(obd);
651 static inline void obd_cleanup_client_import(struct obd_device *obd)
655 /* If we set up but never connected, the
656 client import will not have been cleaned. */
657 down_write(&obd->u.cli.cl_sem);
658 if (obd->u.cli.cl_import) {
659 struct obd_import *imp;
660 imp = obd->u.cli.cl_import;
661 CDEBUG(D_CONFIG, "%s: client import never connected\n",
663 ptlrpc_invalidate_import(imp);
664 client_destroy_import(imp);
665 obd->u.cli.cl_import = NULL;
667 up_write(&obd->u.cli.cl_sem);
673 obd_process_config(struct obd_device *obd, int datalen, void *data)
676 DECLARE_LU_VARS(ldt, d);
681 obd->obd_process_conf = 1;
682 ldt = obd->obd_type->typ_lu;
684 if (ldt != NULL && d != NULL) {
687 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
689 rc = d->ld_ops->ldo_process_config(&env, d, data);
693 OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
694 rc = OBP(obd, process_config)(obd, datalen, data);
696 OBD_COUNTER_INCREMENT(obd, process_config);
697 obd->obd_process_conf = 0;
702 static inline int obd_create(const struct lu_env *env, struct obd_export *exp,
708 EXP_CHECK_DT_OP(exp, create);
709 EXP_COUNTER_INCREMENT(exp, create);
711 rc = OBP(exp->exp_obd, create)(env, exp, obdo);
715 static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp,
721 EXP_CHECK_DT_OP(exp, destroy);
722 EXP_COUNTER_INCREMENT(exp, destroy);
724 rc = OBP(exp->exp_obd, destroy)(env, exp, obdo);
728 static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp,
734 EXP_CHECK_DT_OP(exp, getattr);
735 EXP_COUNTER_INCREMENT(exp, getattr);
736 rc = OBP(exp->exp_obd, getattr)(env, exp, oa);
741 static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp,
747 EXP_CHECK_DT_OP(exp, setattr);
748 EXP_COUNTER_INCREMENT(exp, setattr);
749 rc = OBP(exp->exp_obd, setattr)(env, exp, oa);
754 static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
757 struct obd_device *obd = imp->imp_obd;
761 OBD_CHECK_DEV_ACTIVE(obd);
762 OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
763 OBD_COUNTER_INCREMENT(obd, add_conn);
765 rc = OBP(obd, add_conn)(imp, uuid, priority);
769 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
771 struct obd_device *obd = imp->imp_obd;
775 OBD_CHECK_DEV_ACTIVE(obd);
776 OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
777 OBD_COUNTER_INCREMENT(obd, del_conn);
779 rc = OBP(obd, del_conn)(imp, uuid);
783 static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp)
785 struct obd_uuid *uuid;
788 OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL);
789 EXP_COUNTER_INCREMENT(exp, get_uuid);
791 uuid = OBP(exp->exp_obd, get_uuid)(exp);
795 /** Create a new /a exp on device /a obd for the uuid /a cluuid
796 * @param exp New export handle
797 * @param d Connect data, supported flags are set, flags also understood
798 * by obd are returned.
800 static inline int obd_connect(const struct lu_env *env,
801 struct obd_export **exp,struct obd_device *obd,
802 struct obd_uuid *cluuid,
803 struct obd_connect_data *data,
807 __u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
811 OBD_CHECK_DEV_ACTIVE(obd);
812 OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
813 OBD_COUNTER_INCREMENT(obd, connect);
815 rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata);
816 /* check that only subset is granted */
817 LASSERT(ergo(data != NULL, (data->ocd_connect_flags & ocf) ==
818 data->ocd_connect_flags));
822 static inline int obd_reconnect(const struct lu_env *env,
823 struct obd_export *exp,
824 struct obd_device *obd,
825 struct obd_uuid *cluuid,
826 struct obd_connect_data *d,
830 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
835 OBD_CHECK_DEV_ACTIVE(obd);
836 OBD_CHECK_DT_OP(obd, reconnect, 0);
837 OBD_COUNTER_INCREMENT(obd, reconnect);
839 rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
840 /* check that only subset is granted */
841 LASSERT(ergo(d != NULL,
842 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
846 static inline int obd_disconnect(struct obd_export *exp)
851 EXP_CHECK_DT_OP(exp, disconnect);
852 EXP_COUNTER_INCREMENT(exp, disconnect);
854 rc = OBP(exp->exp_obd, disconnect)(exp);
858 static inline int obd_fid_init(struct obd_device *obd, struct obd_export *exp,
859 enum lu_cli_type type)
864 OBD_CHECK_DT_OP(obd, fid_init, 0);
865 OBD_COUNTER_INCREMENT(obd, fid_init);
867 rc = OBP(obd, fid_init)(obd, exp, type);
871 static inline int obd_fid_fini(struct obd_device *obd)
876 OBD_CHECK_DT_OP(obd, fid_fini, 0);
877 OBD_COUNTER_INCREMENT(obd, fid_fini);
879 rc = OBP(obd, fid_fini)(obd);
883 static inline int obd_fid_alloc(const struct lu_env *env,
884 struct obd_export *exp,
886 struct md_op_data *op_data)
891 EXP_CHECK_DT_OP(exp, fid_alloc);
892 EXP_COUNTER_INCREMENT(exp, fid_alloc);
894 rc = OBP(exp->exp_obd, fid_alloc)(env, exp, fid, op_data);
898 static inline int obd_ping(const struct lu_env *env, struct obd_export *exp)
903 OBD_CHECK_DT_OP(exp->exp_obd, ping, 0);
904 EXP_COUNTER_INCREMENT(exp, ping);
906 rc = OBP(exp->exp_obd, ping)(env, exp);
910 static inline int obd_pool_new(struct obd_device *obd, char *poolname)
915 OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP);
916 OBD_COUNTER_INCREMENT(obd, pool_new);
918 rc = OBP(obd, pool_new)(obd, poolname);
922 static inline int obd_pool_del(struct obd_device *obd, char *poolname)
927 OBD_CHECK_DT_OP(obd, pool_del, -EOPNOTSUPP);
928 OBD_COUNTER_INCREMENT(obd, pool_del);
930 rc = OBP(obd, pool_del)(obd, poolname);
934 static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname)
939 OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP);
940 OBD_COUNTER_INCREMENT(obd, pool_add);
942 rc = OBP(obd, pool_add)(obd, poolname, ostname);
946 static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname)
951 OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP);
952 OBD_COUNTER_INCREMENT(obd, pool_rem);
954 rc = OBP(obd, pool_rem)(obd, poolname, ostname);
958 static inline void obd_getref(struct obd_device *obd)
961 if (OBT(obd) && OBP(obd, getref)) {
962 OBD_COUNTER_INCREMENT(obd, getref);
963 OBP(obd, getref)(obd);
968 static inline void obd_putref(struct obd_device *obd)
971 if (OBT(obd) && OBP(obd, putref)) {
972 OBD_COUNTER_INCREMENT(obd, putref);
973 OBP(obd, putref)(obd);
978 static inline int obd_init_export(struct obd_export *exp)
983 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
984 OBP((exp)->exp_obd, init_export))
985 rc = OBP(exp->exp_obd, init_export)(exp);
989 static inline int obd_destroy_export(struct obd_export *exp)
992 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
993 OBP((exp)->exp_obd, destroy_export))
994 OBP(exp->exp_obd, destroy_export)(exp);
998 /* @max_age is the oldest time in jiffies that we accept using a cached data.
999 * If the cache is older than @max_age we will get a new value from the
1000 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1001 static inline int obd_statfs_async(struct obd_export *exp,
1002 struct obd_info *oinfo,
1004 struct ptlrpc_request_set *rqset)
1007 struct obd_device *obd;
1010 if (exp == NULL || exp->exp_obd == NULL)
1014 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1015 OBD_COUNTER_INCREMENT(obd, statfs);
1017 CDEBUG(D_SUPER, "%s: osfs %p age %llu, max_age %llu\n",
1018 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
1019 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1020 rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset);
1022 CDEBUG(D_SUPER, "%s: use %p cache blocks %llu/%llu objects %llu/%llu\n",
1023 obd->obd_name, &obd->obd_osfs,
1024 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1025 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1026 spin_lock(&obd->obd_osfs_lock);
1027 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
1028 spin_unlock(&obd->obd_osfs_lock);
1029 oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
1030 if (oinfo->oi_cb_up)
1031 oinfo->oi_cb_up(oinfo, 0);
1036 static inline int obd_statfs_rqset(struct obd_export *exp,
1037 struct obd_statfs *osfs, __u64 max_age,
1040 struct ptlrpc_request_set *set = NULL;
1041 struct obd_info oinfo = {
1049 set = ptlrpc_prep_set();
1053 rc = obd_statfs_async(exp, &oinfo, max_age, set);
1055 rc = ptlrpc_set_wait(set);
1057 ptlrpc_set_destroy(set);
1062 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1063 * If the cache is older than @max_age we will get a new value from the
1064 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1065 static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
1066 struct obd_statfs *osfs, __u64 max_age,
1070 struct obd_device *obd = exp->exp_obd;
1076 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1077 OBD_COUNTER_INCREMENT(obd, statfs);
1079 CDEBUG(D_SUPER, "osfs %llu, max_age %llu\n",
1080 obd->obd_osfs_age, max_age);
1081 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1082 rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
1084 spin_lock(&obd->obd_osfs_lock);
1085 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1086 obd->obd_osfs_age = cfs_time_current_64();
1087 spin_unlock(&obd->obd_osfs_lock);
1090 CDEBUG(D_SUPER, "%s: use %p cache blocks %llu/%llu"
1091 " objects %llu/%llu\n",
1092 obd->obd_name, &obd->obd_osfs,
1093 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1094 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1095 spin_lock(&obd->obd_osfs_lock);
1096 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1097 spin_unlock(&obd->obd_osfs_lock);
1102 static inline int obd_preprw(const struct lu_env *env, int cmd,
1103 struct obd_export *exp, struct obdo *oa,
1104 int objcount, struct obd_ioobj *obj,
1105 struct niobuf_remote *remote, int *pages,
1106 struct niobuf_local *local)
1111 EXP_CHECK_DT_OP(exp, preprw);
1112 EXP_COUNTER_INCREMENT(exp, preprw);
1113 rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote,
1119 static inline int obd_commitrw(const struct lu_env *env, int cmd,
1120 struct obd_export *exp, struct obdo *oa,
1121 int objcount, struct obd_ioobj *obj,
1122 struct niobuf_remote *rnb, int pages,
1123 struct niobuf_local *local, int rc)
1127 EXP_CHECK_DT_OP(exp, commitrw);
1128 EXP_COUNTER_INCREMENT(exp, commitrw);
1129 rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj,
1130 rnb, pages, local, rc);
1135 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1136 int len, void *karg, void __user *uarg)
1141 EXP_CHECK_DT_OP(exp, iocontrol);
1142 EXP_COUNTER_INCREMENT(exp, iocontrol);
1144 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1148 static inline void obd_import_event(struct obd_device *obd,
1149 struct obd_import *imp,
1150 enum obd_import_event event)
1154 CERROR("NULL device\n");
1158 if (obd->obd_set_up && OBP(obd, import_event)) {
1159 OBD_COUNTER_INCREMENT(obd, import_event);
1160 OBP(obd, import_event)(obd, imp, event);
1165 static inline int obd_notify(struct obd_device *obd,
1166 struct obd_device *watched,
1167 enum obd_notify_event ev)
1173 if (!obd->obd_set_up) {
1174 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1178 if (!OBP(obd, notify)) {
1179 CDEBUG(D_HA, "obd %s has no notify handler\n", obd->obd_name);
1183 OBD_COUNTER_INCREMENT(obd, notify);
1184 rc = OBP(obd, notify)(obd, watched, ev);
1189 static inline int obd_notify_observer(struct obd_device *observer,
1190 struct obd_device *observed,
1191 enum obd_notify_event ev)
1195 struct obd_notify_upcall *onu;
1197 if (observer->obd_observer)
1198 rc = obd_notify(observer->obd_observer, observed, ev);
1201 * Also, call non-obd listener, if any
1203 onu = &observer->obd_upcall;
1204 if (onu->onu_upcall != NULL)
1205 rc2 = onu->onu_upcall(observer, observed, ev, onu->onu_owner);
1207 return rc ? rc : rc2;
1210 static inline int obd_quotactl(struct obd_export *exp,
1211 struct obd_quotactl *oqctl)
1216 EXP_CHECK_DT_OP(exp, quotactl);
1217 EXP_COUNTER_INCREMENT(exp, quotactl);
1219 rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl);
1223 static inline int obd_health_check(const struct lu_env *env,
1224 struct obd_device *obd)
1226 /* returns: 0 on healthy
1227 * >0 on unhealthy + reason code/flag
1228 * however the only suppored reason == 1 right now
1229 * We'll need to define some better reasons
1230 * or flags in the future.
1236 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1237 if (obd == NULL || !OBT(obd)) {
1238 CERROR("cleaned up obd\n");
1239 RETURN(-EOPNOTSUPP);
1241 if (!obd->obd_set_up || obd->obd_stopping)
1243 if (!OBP(obd, health_check))
1246 rc = OBP(obd, health_check)(env, obd);
1250 static inline int obd_register_observer(struct obd_device *obd,
1251 struct obd_device *observer)
1255 down_write(&obd->obd_observer_link_sem);
1256 if (obd->obd_observer && observer) {
1257 up_write(&obd->obd_observer_link_sem);
1260 obd->obd_observer = observer;
1261 up_write(&obd->obd_observer_link_sem);
1265 /* metadata helpers */
1266 static inline int md_get_root(struct obd_export *exp, const char *fileset,
1272 EXP_CHECK_MD_OP(exp, get_root);
1273 EXP_MD_COUNTER_INCREMENT(exp, get_root);
1274 rc = MDP(exp->exp_obd, get_root)(exp, fileset, fid);
1279 static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data,
1280 struct ptlrpc_request **request)
1284 EXP_CHECK_MD_OP(exp, getattr);
1285 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1286 rc = MDP(exp->exp_obd, getattr)(exp, op_data, request);
1290 static inline int md_null_inode(struct obd_export *exp,
1291 const struct lu_fid *fid)
1295 EXP_CHECK_MD_OP(exp, null_inode);
1296 EXP_MD_COUNTER_INCREMENT(exp, null_inode);
1297 rc = MDP(exp->exp_obd, null_inode)(exp, fid);
1301 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1302 struct md_open_data *mod,
1303 struct ptlrpc_request **request)
1307 EXP_CHECK_MD_OP(exp, close);
1308 EXP_MD_COUNTER_INCREMENT(exp, close);
1309 rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
1313 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1314 const void *data, size_t datalen, umode_t mode,
1315 uid_t uid, gid_t gid, cfs_cap_t cap_effective,
1316 __u64 rdev, struct ptlrpc_request **request)
1320 EXP_CHECK_MD_OP(exp, create);
1321 EXP_MD_COUNTER_INCREMENT(exp, create);
1322 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1323 uid, gid, cap_effective, rdev, request);
1327 static inline int md_enqueue(struct obd_export *exp,
1328 struct ldlm_enqueue_info *einfo,
1329 const union ldlm_policy_data *policy,
1330 struct md_op_data *op_data,
1331 struct lustre_handle *lockh,
1332 __u64 extra_lock_flags)
1336 EXP_CHECK_MD_OP(exp, enqueue);
1337 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1338 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, policy, op_data, lockh,
1343 static inline int md_getattr_name(struct obd_export *exp,
1344 struct md_op_data *op_data,
1345 struct ptlrpc_request **request)
1349 EXP_CHECK_MD_OP(exp, getattr_name);
1350 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1351 rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request);
1355 static inline int md_intent_lock(struct obd_export *exp,
1356 struct md_op_data *op_data,
1357 struct lookup_intent *it,
1358 struct ptlrpc_request **reqp,
1359 ldlm_blocking_callback cb_blocking,
1360 __u64 extra_lock_flags)
1364 EXP_CHECK_MD_OP(exp, intent_lock);
1365 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1366 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, it, reqp, cb_blocking,
1371 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1372 struct ptlrpc_request **request)
1376 EXP_CHECK_MD_OP(exp, link);
1377 EXP_MD_COUNTER_INCREMENT(exp, link);
1378 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1382 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1383 const char *old, size_t oldlen, const char *new,
1384 size_t newlen, struct ptlrpc_request **request)
1388 EXP_CHECK_MD_OP(exp, rename);
1389 EXP_MD_COUNTER_INCREMENT(exp, rename);
1390 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
1395 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
1396 void *ea, size_t ealen,
1397 struct ptlrpc_request **request)
1401 EXP_CHECK_MD_OP(exp, setattr);
1402 EXP_MD_COUNTER_INCREMENT(exp, setattr);
1403 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen, request);
1407 static inline int md_fsync(struct obd_export *exp, const struct lu_fid *fid,
1408 struct ptlrpc_request **request)
1413 EXP_CHECK_MD_OP(exp, fsync);
1414 EXP_MD_COUNTER_INCREMENT(exp, fsync);
1415 rc = MDP(exp->exp_obd, fsync)(exp, fid, request);
1420 static inline int md_read_page(struct obd_export *exp,
1421 struct md_op_data *op_data,
1422 struct md_callback *cb_op,
1424 struct page **ppage)
1428 EXP_CHECK_MD_OP(exp, read_page);
1429 EXP_MD_COUNTER_INCREMENT(exp, read_page);
1430 rc = MDP(exp->exp_obd, read_page)(exp, op_data, cb_op, hash_offset,
1435 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
1436 struct ptlrpc_request **request)
1440 EXP_CHECK_MD_OP(exp, unlink);
1441 EXP_MD_COUNTER_INCREMENT(exp, unlink);
1442 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
1446 static inline int md_get_lustre_md(struct obd_export *exp,
1447 struct ptlrpc_request *req,
1448 struct obd_export *dt_exp,
1449 struct obd_export *md_exp,
1450 struct lustre_md *md)
1453 EXP_CHECK_MD_OP(exp, get_lustre_md);
1454 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
1455 RETURN(MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md));
1458 static inline int md_free_lustre_md(struct obd_export *exp,
1459 struct lustre_md *md)
1462 EXP_CHECK_MD_OP(exp, free_lustre_md);
1463 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
1464 RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md));
1467 static inline int md_merge_attr(struct obd_export *exp,
1468 const struct lmv_stripe_md *lsm,
1469 struct cl_attr *attr,
1470 ldlm_blocking_callback cb)
1473 EXP_CHECK_MD_OP(exp, merge_attr);
1474 EXP_MD_COUNTER_INCREMENT(exp, merge_attr);
1475 RETURN(MDP(exp->exp_obd, merge_attr)(exp, lsm, attr, cb));
1478 static inline int md_setxattr(struct obd_export *exp, const struct lu_fid *fid,
1479 u64 valid, const char *name,
1480 const char *input, int input_size,
1481 int output_size, int flags, __u32 suppgid,
1482 struct ptlrpc_request **request)
1485 EXP_CHECK_MD_OP(exp, setxattr);
1486 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
1487 RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, valid, name, input,
1488 input_size, output_size, flags,
1492 static inline int md_getxattr(struct obd_export *exp, const struct lu_fid *fid,
1493 u64 valid, const char *name,
1494 const char *input, int input_size,
1495 int output_size, int flags,
1496 struct ptlrpc_request **request)
1499 EXP_CHECK_MD_OP(exp, getxattr);
1500 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
1501 RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, valid, name, input,
1502 input_size, output_size, flags,
1506 static inline int md_set_open_replay_data(struct obd_export *exp,
1507 struct obd_client_handle *och,
1508 struct lookup_intent *it)
1511 EXP_CHECK_MD_OP(exp, set_open_replay_data);
1512 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
1513 RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, it));
1516 static inline int md_clear_open_replay_data(struct obd_export *exp,
1517 struct obd_client_handle *och)
1520 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
1521 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
1522 RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och));
1525 static inline int md_set_lock_data(struct obd_export *exp,
1526 const struct lustre_handle *lockh,
1527 void *data, __u64 *bits)
1530 EXP_CHECK_MD_OP(exp, set_lock_data);
1531 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
1532 RETURN(MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits));
1536 int md_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
1537 union ldlm_policy_data *policy, enum ldlm_mode mode,
1538 enum ldlm_cancel_flags cancel_flags, void *opaque)
1543 EXP_CHECK_MD_OP(exp, cancel_unused);
1544 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
1546 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
1547 cancel_flags, opaque);
1551 static inline enum ldlm_mode md_lock_match(struct obd_export *exp, __u64 flags,
1552 const struct lu_fid *fid,
1553 enum ldlm_type type,
1554 union ldlm_policy_data *policy,
1555 enum ldlm_mode mode,
1556 struct lustre_handle *lockh)
1559 EXP_CHECK_MD_OP(exp, lock_match);
1560 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
1561 RETURN(MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
1562 policy, mode, lockh));
1565 static inline int md_init_ea_size(struct obd_export *exp, __u32 ea_size,
1569 EXP_CHECK_MD_OP(exp, init_ea_size);
1570 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
1571 RETURN(MDP(exp->exp_obd, init_ea_size)(exp, ea_size, def_ea_size));
1574 static inline int md_intent_getattr_async(struct obd_export *exp,
1575 struct md_enqueue_info *minfo)
1579 EXP_CHECK_MD_OP(exp, intent_getattr_async);
1580 EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
1581 rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo);
1585 static inline int md_revalidate_lock(struct obd_export *exp,
1586 struct lookup_intent *it,
1587 struct lu_fid *fid, __u64 *bits)
1591 EXP_CHECK_MD_OP(exp, revalidate_lock);
1592 EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
1593 rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits);
1597 static inline int md_get_fid_from_lsm(struct obd_export *exp,
1598 const struct lmv_stripe_md *lsm,
1599 const char *name, int namelen,
1604 EXP_CHECK_MD_OP(exp, get_fid_from_lsm);
1605 EXP_MD_COUNTER_INCREMENT(exp, get_fid_from_lsm);
1606 rc = MDP(exp->exp_obd, get_fid_from_lsm)(exp, lsm, name, namelen, fid);
1611 /* Unpack an MD struct from disk to in-memory format.
1612 * Returns +ve size of unpacked MD (0 for free), or -ve error.
1614 * If *plsm != NULL and lmm == NULL then *lsm will be freed.
1615 * If *plsm == NULL then it will be allocated.
1617 static inline int md_unpackmd(struct obd_export *exp,
1618 struct lmv_stripe_md **plsm,
1619 const union lmv_mds_md *lmm, size_t lmm_size)
1623 EXP_CHECK_MD_OP(exp, unpackmd);
1624 EXP_MD_COUNTER_INCREMENT(exp, unpackmd);
1625 rc = MDP(exp->exp_obd, unpackmd)(exp, plsm, lmm, lmm_size);
1629 /* OBD Metadata Support */
1631 extern int obd_init_caches(void);
1632 extern void obd_cleanup_caches(void);
1634 /* support routines */
1635 extern struct kmem_cache *obdo_cachep;
1637 #define OBDO_ALLOC(ptr) \
1639 OBD_SLAB_ALLOC_PTR_GFP((ptr), obdo_cachep, GFP_NOFS); \
1642 #define OBDO_FREE(ptr) \
1644 OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
1648 typedef int (*register_lwp_cb)(void *data);
1650 struct lwp_register_item {
1651 struct obd_export **lri_exp;
1652 register_lwp_cb lri_cb_func;
1654 struct list_head lri_list;
1656 char lri_name[MTI_NAME_MAXLEN];
1659 /* I'm as embarrassed about this as you are.
1661 * <shaver> // XXX do not look into _superhack with remaining eye
1662 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
1663 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
1666 #ifdef HAVE_SERVER_SUPPORT
1667 int lustre_register_lwp_item(const char *lwpname, struct obd_export **exp,
1668 register_lwp_cb cb_func, void *cb_data);
1669 void lustre_deregister_lwp_item(struct obd_export **exp);
1670 struct obd_export *lustre_find_lwp_by_index(const char *dev, __u32 idx);
1671 void lustre_notify_lwp_list(struct obd_export *exp);
1672 int tgt_name2lwp_name(const char *tgt_name, char *lwp_name, int len, __u32 idx);
1673 #endif /* HAVE_SERVER_SUPPORT */
1674 int lustre_register_fs(void);
1675 int lustre_unregister_fs(void);
1676 int lustre_check_exclusion(struct super_block *sb, char *svname);
1679 extern int obd_sysctl_init(void);
1680 extern void obd_sysctl_clean(void);
1683 typedef __u8 class_uuid_t[16];
1684 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
1687 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
1688 int class_add_uuid(const char *uuid, __u64 nid);
1689 int class_del_uuid (const char *uuid);
1690 int class_check_uuid(struct obd_uuid *uuid, __u64 nid);
1693 extern char obd_jobid_node[];
1696 #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
1700 void statfs_pack(struct obd_statfs *osfs, struct kstatfs *sfs);
1701 void statfs_unpack(struct kstatfs *sfs, struct obd_statfs *osfs);
1703 /* root squash info */
1704 struct rw_semaphore;
1705 struct root_squash_info {
1708 struct list_head rsi_nosquash_nids;
1709 struct rw_semaphore rsi_sem;
1712 int server_name2index(const char *svname, __u32 *idx, const char **endptr);
1714 /* linux-module.c */
1715 extern struct miscdevice obd_psdev;
1716 int class_procfs_init(void);
1717 int class_procfs_clean(void);
1719 #endif /* __LINUX_OBD_CLASS_H */