1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001-2003 Cluster File Systems, Inc.
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 # include <liblustre.h>
30 #include <obd_support.h>
31 #include <lustre_import.h>
32 #include <lustre_net.h>
34 #include <lustre_lib.h>
35 #include <lustre/lustre_idl.h>
36 #include <lprocfs_status.h>
38 #if defined(__linux__)
39 #include <linux/obd_class.h>
40 #elif defined(__APPLE__)
41 #include <darwin/obd_class.h>
42 #elif defined(__WINNT__)
43 #include <winnt/obd_class.h>
45 #error Unsupported operating system.
48 /* OBD Device Declarations */
49 extern struct obd_device *obd_devs[MAX_OBD_DEVICES];
50 extern spinlock_t obd_dev_lock;
52 /* OBD Operations Declarations */
53 extern struct obd_device *class_conn2obd(struct lustre_handle *);
54 extern struct obd_device *class_exp2obd(struct obd_export *);
56 struct lu_device_type;
59 struct obd_export *class_conn2export(struct lustre_handle *);
60 int class_register_type(struct obd_ops *, struct md_ops *,
61 struct lprocfs_vars *, const char *nm,
62 struct lu_device_type *ldt);
63 int class_unregister_type(const char *nm);
65 struct obd_device *class_newdev(const char *type_name, const char *name);
66 void class_release_dev(struct obd_device *obd);
68 int class_name2dev(const char *name);
69 struct obd_device *class_name2obd(const char *name);
70 int class_uuid2dev(struct obd_uuid *uuid);
71 struct obd_device *class_uuid2obd(struct obd_uuid *uuid);
72 void class_obd_list(void);
73 struct obd_device * class_find_client_obd(struct obd_uuid *tgt_uuid,
74 const char * typ_name,
75 struct obd_uuid *grp_uuid);
76 struct obd_device * class_find_client_notype(struct obd_uuid *tgt_uuid,
77 struct obd_uuid *grp_uuid);
78 struct obd_device * class_devices_in_group(struct obd_uuid *grp_uuid,
80 struct obd_device * class_num2obd(int num);
82 int oig_init(struct obd_io_group **oig);
83 int oig_add_one(struct obd_io_group *oig, struct oig_callback_context *occ);
84 void oig_complete_one(struct obd_io_group *oig,
85 struct oig_callback_context *occ, int rc);
86 void oig_release(struct obd_io_group *oig);
87 int oig_wait(struct obd_io_group *oig);
89 char *obd_export_nid2str(struct obd_export *exp);
91 int obd_export_evict_by_nid(struct obd_device *obd, const char *nid);
92 int obd_export_evict_by_uuid(struct obd_device *obd, const char *uuid);
95 int class_process_config(struct lustre_cfg *lcfg);
96 int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
97 struct lustre_cfg *lcfg, void *data);
98 int class_attach(struct lustre_cfg *lcfg);
99 int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
100 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg);
101 int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg);
102 struct obd_device *class_incref(struct obd_device *obd);
103 void class_decref(struct obd_device *obd);
105 #define CFG_F_START 0x01 /* Set when we start updating from a log */
106 #define CFG_F_MARKER 0x02 /* We are within a maker */
107 #define CFG_F_SKIP 0x04 /* We should ignore this cfg command */
108 #define CFG_F_COMPAT146 0x08 /* Allow old-style logs */
109 #define CFG_F_EXCLUDE 0x10 /* OST exclusion list */
111 /* Passed as data param to class_config_parse_llog */
112 struct config_llog_instance {
114 struct super_block *cfg_sb;
115 struct obd_uuid cfg_uuid;
116 int cfg_last_idx; /* for partial llog processing */
119 int class_config_parse_llog(struct llog_ctxt *ctxt, char *name,
120 struct config_llog_instance *cfg);
121 int class_config_dump_llog(struct llog_ctxt *ctxt, char *name,
122 struct config_llog_instance *cfg);
124 /* list of active configuration logs */
125 struct config_llog_data {
127 struct ldlm_res_id cld_resid;
128 struct config_llog_instance cld_cfg;
129 struct list_head cld_list_chain;
130 atomic_t cld_refcount;
131 struct obd_export *cld_mgcexp;
132 unsigned int cld_stopping:1, /* we were told to stop watching */
133 cld_lostlock:1; /* lock not requeued */
136 struct lustre_profile {
137 struct list_head lp_list;
143 struct lustre_profile *class_get_profile(const char * prof);
144 void class_del_profile(const char *prof);
145 void class_del_profiles(void);
147 #define class_export_rpc_get(exp) \
149 atomic_inc(&(exp)->exp_rpc_count); \
150 CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \
151 (exp), atomic_read(&(exp)->exp_rpc_count)); \
152 class_export_get(exp); \
155 #define class_export_rpc_put(exp) \
157 atomic_dec(&(exp)->exp_rpc_count); \
158 CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \
159 (exp), atomic_read(&(exp)->exp_rpc_count)); \
160 class_export_put(exp); \
164 #define class_export_get(exp) \
166 struct obd_export *exp_ = exp; \
167 atomic_inc(&exp_->exp_refcount); \
168 CDEBUG(D_INFO, "GETting export %p : new refcount %d\n", exp_, \
169 atomic_read(&exp_->exp_refcount)); \
173 #define class_export_put(exp) \
175 LASSERT((exp) != NULL); \
176 CDEBUG(D_INFO, "PUTting export %p : new refcount %d\n", (exp), \
177 atomic_read(&(exp)->exp_refcount) - 1); \
178 LASSERT(atomic_read(&(exp)->exp_refcount) > 0); \
179 LASSERT(atomic_read(&(exp)->exp_refcount) < 0x5a5a5a); \
180 __class_export_put(exp); \
183 void __class_export_put(struct obd_export *);
184 struct obd_export *class_new_export(struct obd_device *obddev,
185 struct obd_uuid *cluuid);
186 void class_unlink_export(struct obd_export *exp);
188 struct obd_import *class_import_get(struct obd_import *);
189 void class_import_put(struct obd_import *);
190 struct obd_import *class_new_import(struct obd_device *obd);
191 void class_destroy_import(struct obd_import *exp);
193 struct obd_type *class_search_type(const char *name);
194 struct obd_type *class_get_type(const char *name);
195 void class_put_type(struct obd_type *type);
196 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
197 struct obd_uuid *cluuid);
198 int class_disconnect(struct obd_export *exp);
199 void class_fail_export(struct obd_export *exp);
200 void class_disconnect_exports(struct obd_device *obddev);
201 int class_disconnect_stale_exports(struct obd_device *,
202 int (*test_export)(struct obd_export *));
203 int class_manual_cleanup(struct obd_device *obd);
205 void obdo_cpy_md(struct obdo *dst, struct obdo *src, obd_flag valid);
206 void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj);
207 void obdo_from_iattr(struct obdo *oa, struct iattr *attr,
208 unsigned int ia_valid);
209 void iattr_from_obdo(struct iattr *attr, struct obdo *oa, obd_flag valid);
210 void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, obd_flag valid);
211 void obdo_from_md(struct obdo *oa, struct md_op_data *op_data,
214 #define OBT(dev) (dev)->obd_type
215 #define OBP(dev, op) (dev)->obd_type->typ_dt_ops->o_ ## op
216 #define MDP(dev, op) (dev)->obd_type->typ_md_ops->m_ ## op
217 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
219 /* Ensure obd_setup: used for cleanup which must be called
220 while obd is stopping */
221 #define OBD_CHECK_DEV(obd) \
224 CERROR("NULL device\n"); \
229 /* ensure obd_setup and !obd_stopping */
230 #define OBD_CHECK_DEV_ACTIVE(obd) \
232 OBD_CHECK_DEV(obd); \
233 if (!(obd)->obd_set_up || (obd)->obd_stopping) { \
234 CERROR("Device %d not setup\n", \
242 #define OBD_COUNTER_OFFSET(op) \
243 ((offsetof(struct obd_ops, o_ ## op) - \
244 offsetof(struct obd_ops, o_iocontrol)) \
245 / sizeof(((struct obd_ops *)(0))->o_iocontrol))
247 #define OBD_COUNTER_INCREMENT(obdx, op) \
248 if ((obdx)->obd_stats != NULL) { \
249 unsigned int coffset; \
250 coffset = (unsigned int)((obdx)->obd_cntr_base) + \
251 OBD_COUNTER_OFFSET(op); \
252 LASSERT(coffset < (obdx)->obd_stats->ls_num); \
253 lprocfs_counter_incr((obdx)->obd_stats, coffset); \
256 #define EXP_COUNTER_INCREMENT(export, op) \
257 if ((export)->exp_obd->obd_stats != NULL) { \
258 unsigned int coffset; \
259 coffset = (unsigned int)((export)->exp_obd->obd_cntr_base) + \
260 OBD_COUNTER_OFFSET(op); \
261 LASSERT(coffset < (export)->exp_obd->obd_stats->ls_num); \
262 lprocfs_counter_incr((export)->exp_obd->obd_stats, coffset); \
263 if ((export)->exp_ops_stats != NULL) \
264 lprocfs_counter_incr( \
265 (export)->exp_ops_stats, coffset); \
268 #define MD_COUNTER_OFFSET(op) \
269 ((offsetof(struct md_ops, m_ ## op) - \
270 offsetof(struct md_ops, m_getstatus)) \
271 / sizeof(((struct md_ops *)(0))->m_getstatus))
273 #define MD_COUNTER_INCREMENT(obdx, op) \
274 if ((obd)->md_stats != NULL) { \
275 unsigned int coffset; \
276 coffset = (unsigned int)((obdx)->md_cntr_base) + \
277 MD_COUNTER_OFFSET(op); \
278 LASSERT(coffset < (obdx)->md_stats->ls_num); \
279 lprocfs_counter_incr((obdx)->md_stats, coffset); \
282 #define EXP_MD_COUNTER_INCREMENT(export, op) \
283 if ((export)->exp_obd->obd_stats != NULL) { \
284 unsigned int coffset; \
285 coffset = (unsigned int)((export)->exp_obd->md_cntr_base) + \
286 MD_COUNTER_OFFSET(op); \
287 LASSERT(coffset < (export)->exp_obd->md_stats->ls_num); \
288 lprocfs_counter_incr((export)->exp_obd->md_stats, coffset); \
289 if ((export)->exp_md_stats != NULL) \
290 lprocfs_counter_incr( \
291 (export)->exp_md_stats, coffset); \
295 #define OBD_COUNTER_OFFSET(op)
296 #define OBD_COUNTER_INCREMENT(obd, op)
297 #define EXP_COUNTER_INCREMENT(exp, op)
298 #define MD_COUNTER_INCREMENT(obd, op)
299 #define EXP_MD_COUNTER_INCREMENT(exp, op)
302 #define OBD_CHECK_MD_OP(obd, op, err) \
304 if (!OBT(obd) || !MDP((obd), op)) { \
306 CERROR("md_" #op ": dev %s/%d no operation\n", \
307 obd->obd_name, obd->obd_minor); \
312 #define EXP_CHECK_MD_OP(exp, op) \
314 if ((exp) == NULL) { \
315 CERROR("obd_" #op ": NULL export\n"); \
318 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
319 CERROR("obd_" #op ": cleaned up obd\n"); \
320 RETURN(-EOPNOTSUPP); \
322 if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
323 CERROR("obd_" #op ": dev %s/%d no operation\n", \
324 (exp)->exp_obd->obd_name, \
325 (exp)->exp_obd->obd_minor); \
326 RETURN(-EOPNOTSUPP); \
331 #define OBD_CHECK_DT_OP(obd, op, err) \
333 if (!OBT(obd) || !OBP((obd), op)) { \
335 CERROR("obd_" #op ": dev %d no operation\n", \
341 #define EXP_CHECK_DT_OP(exp, op) \
343 if ((exp) == NULL) { \
344 CERROR("obd_" #op ": NULL export\n"); \
347 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
348 CERROR("obd_" #op ": cleaned up obd\n"); \
349 RETURN(-EOPNOTSUPP); \
351 if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
352 CERROR("obd_" #op ": dev %d no operation\n", \
353 (exp)->exp_obd->obd_minor); \
354 RETURN(-EOPNOTSUPP); \
358 #define CTXT_CHECK_OP(ctxt, op, err) \
360 if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
362 CERROR("lop_" #op ": dev %d no operation\n", \
363 ctxt->loc_obd->obd_minor); \
368 static inline int class_devno_max(void)
370 return MAX_OBD_DEVICES;
373 static inline int obd_get_info(struct obd_export *exp, __u32 keylen,
374 void *key, __u32 *vallen, void *val)
379 EXP_CHECK_DT_OP(exp, get_info);
380 EXP_COUNTER_INCREMENT(exp, get_info);
382 rc = OBP(exp->exp_obd, get_info)(exp, keylen, key, vallen, val);
386 static inline int obd_set_info_async(struct obd_export *exp, obd_count keylen,
387 void *key, obd_count vallen, void *val,
388 struct ptlrpc_request_set *set)
393 EXP_CHECK_DT_OP(exp, set_info_async);
394 EXP_COUNTER_INCREMENT(exp, set_info_async);
396 rc = OBP(exp->exp_obd, set_info_async)(exp, keylen, key, vallen, val,
402 #define DECLARE_LU_VARS(ldt, d) \
403 struct lu_device_type *ldt; \
406 #define DECLARE_LU_VARS(ldt, d) \
407 extern void __placeholder_to_put_a_semicolon(void)
409 static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
412 DECLARE_LU_VARS(ldt, d);
416 ldt = obd->obd_type->typ_lu;
420 rc = lu_env_init(&env, NULL, ldt->ldt_ctx_tags);
422 d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
434 OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
435 OBD_COUNTER_INCREMENT(obd, setup);
436 rc = OBP(obd, setup)(obd, cfg);
441 static inline int obd_precleanup(struct obd_device *obd,
442 enum obd_cleanup_stage cleanup_stage)
445 DECLARE_LU_VARS(ldt, d);
450 ldt = obd->obd_type->typ_lu;
454 if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
457 rc = lu_env_init(&env, NULL, ldt->ldt_ctx_tags);
459 ldt->ldt_ops->ldto_device_fini(&env, d);
468 OBD_CHECK_DT_OP(obd, precleanup, 0);
469 rc = OBP(obd, precleanup)(obd, cleanup_stage);
472 OBD_COUNTER_INCREMENT(obd, precleanup);
476 static inline int obd_cleanup(struct obd_device *obd)
479 DECLARE_LU_VARS(ldt, d);
485 ldt = obd->obd_type->typ_lu;
491 rc = lu_env_init(&env, NULL, ldt->ldt_ctx_tags);
493 ldt->ldt_ops->ldto_device_free(&env, d);
495 obd->obd_lu_dev = NULL;
500 OBD_CHECK_DT_OP(obd, cleanup, 0);
501 rc = OBP(obd, cleanup)(obd);
503 OBD_COUNTER_INCREMENT(obd, cleanup);
508 obd_process_config(struct obd_device *obd, int datalen, void *data)
511 DECLARE_LU_VARS(ldt, d);
517 ldt = obd->obd_type->typ_lu;
519 if (ldt != NULL && d != NULL) {
522 rc = lu_env_init(&env, NULL, ldt->ldt_ctx_tags);
524 rc = d->ld_ops->ldo_process_config(&env, d, data);
530 OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
531 rc = OBP(obd, process_config)(obd, datalen, data);
533 OBD_COUNTER_INCREMENT(obd, process_config);
538 /* Pack an in-memory MD struct for storage on disk.
539 * Returns +ve size of packed MD (0 for free), or -ve error.
541 * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL).
542 * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed.
543 * If @*disk_tgt == NULL, it will be allocated
545 static inline int obd_packmd(struct obd_export *exp,
546 struct lov_mds_md **disk_tgt,
547 struct lov_stripe_md *mem_src)
552 EXP_CHECK_DT_OP(exp, packmd);
553 EXP_COUNTER_INCREMENT(exp, packmd);
555 rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src);
559 static inline int obd_size_diskmd(struct obd_export *exp,
560 struct lov_stripe_md *mem_src)
562 return obd_packmd(exp, NULL, mem_src);
565 /* helper functions */
566 static inline int obd_alloc_diskmd(struct obd_export *exp,
567 struct lov_mds_md **disk_tgt)
570 LASSERT(*disk_tgt == NULL);
571 return obd_packmd(exp, disk_tgt, NULL);
574 static inline int obd_free_diskmd(struct obd_export *exp,
575 struct lov_mds_md **disk_tgt)
579 return obd_packmd(exp, disk_tgt, NULL);
582 /* Unpack an MD struct from disk to in-memory format.
583 * Returns +ve size of unpacked MD (0 for free), or -ve error.
585 * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL).
586 * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed.
587 * If @*mem_tgt == NULL, it will be allocated
589 static inline int obd_unpackmd(struct obd_export *exp,
590 struct lov_stripe_md **mem_tgt,
591 struct lov_mds_md *disk_src,
597 EXP_CHECK_DT_OP(exp, unpackmd);
598 EXP_COUNTER_INCREMENT(exp, unpackmd);
600 rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len);
604 /* helper functions */
605 static inline int obd_alloc_memmd(struct obd_export *exp,
606 struct lov_stripe_md **mem_tgt)
609 LASSERT(*mem_tgt == NULL);
610 return obd_unpackmd(exp, mem_tgt, NULL, 0);
613 static inline int obd_free_memmd(struct obd_export *exp,
614 struct lov_stripe_md **mem_tgt)
618 return obd_unpackmd(exp, mem_tgt, NULL, 0);
621 static inline int obd_checkmd(struct obd_export *exp,
622 struct obd_export *md_exp,
623 struct lov_stripe_md *mem_tgt)
628 EXP_CHECK_DT_OP(exp, checkmd);
629 EXP_COUNTER_INCREMENT(exp, checkmd);
631 rc = OBP(exp->exp_obd, checkmd)(exp, md_exp, mem_tgt);
635 static inline int obd_precreate(struct obd_export *exp, int need_create)
640 EXP_CHECK_DT_OP(exp, precreate);
641 OBD_COUNTER_INCREMENT(exp->exp_obd, precreate);
643 rc = OBP(exp->exp_obd, precreate)(exp, need_create);
647 static inline int obd_create(struct obd_export *exp, struct obdo *obdo,
648 struct lov_stripe_md **ea,
649 struct obd_trans_info *oti)
654 EXP_CHECK_DT_OP(exp, create);
655 EXP_COUNTER_INCREMENT(exp, create);
657 rc = OBP(exp->exp_obd, create)(exp, obdo, ea, oti);
661 static inline int obd_destroy(struct obd_export *exp, struct obdo *obdo,
662 struct lov_stripe_md *ea,
663 struct obd_trans_info *oti,
664 struct obd_export *md_exp)
669 EXP_CHECK_DT_OP(exp, destroy);
670 EXP_COUNTER_INCREMENT(exp, destroy);
672 rc = OBP(exp->exp_obd, destroy)(exp, obdo, ea, oti, md_exp);
676 static inline int obd_getattr(struct obd_export *exp, struct obd_info *oinfo)
681 EXP_CHECK_DT_OP(exp, getattr);
682 EXP_COUNTER_INCREMENT(exp, getattr);
684 rc = OBP(exp->exp_obd, getattr)(exp, oinfo);
688 static inline int obd_getattr_async(struct obd_export *exp,
689 struct obd_info *oinfo,
690 struct ptlrpc_request_set *set)
695 EXP_CHECK_DT_OP(exp, getattr_async);
696 EXP_COUNTER_INCREMENT(exp, getattr_async);
698 rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set);
702 static inline int obd_setattr(struct obd_export *exp, struct obd_info *oinfo,
703 struct obd_trans_info *oti)
708 EXP_CHECK_DT_OP(exp, setattr);
709 EXP_COUNTER_INCREMENT(exp, setattr);
711 rc = OBP(exp->exp_obd, setattr)(exp, oinfo, oti);
715 /* This performs all the requests set init/wait/destroy actions. */
716 static inline int obd_setattr_rqset(struct obd_export *exp,
717 struct obd_info *oinfo,
718 struct obd_trans_info *oti)
720 struct ptlrpc_request_set *set = NULL;
724 EXP_CHECK_DT_OP(exp, setattr_async);
725 EXP_COUNTER_INCREMENT(exp, setattr_async);
727 set = ptlrpc_prep_set();
731 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
733 rc = ptlrpc_set_wait(set);
734 ptlrpc_set_destroy(set);
738 /* This adds all the requests into @set if @set != NULL, otherwise
739 all requests are sent asynchronously without waiting for response. */
740 static inline int obd_setattr_async(struct obd_export *exp,
741 struct obd_info *oinfo,
742 struct obd_trans_info *oti,
743 struct ptlrpc_request_set *set)
748 EXP_CHECK_DT_OP(exp, setattr_async);
749 EXP_COUNTER_INCREMENT(exp, setattr_async);
751 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
755 static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
758 struct obd_device *obd = imp->imp_obd;
762 OBD_CHECK_DEV_ACTIVE(obd);
763 OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
764 OBD_COUNTER_INCREMENT(obd, add_conn);
766 rc = OBP(obd, add_conn)(imp, uuid, priority);
770 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
772 struct obd_device *obd = imp->imp_obd;
776 OBD_CHECK_DEV_ACTIVE(obd);
777 OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
778 OBD_COUNTER_INCREMENT(obd, del_conn);
780 rc = OBP(obd, del_conn)(imp, uuid);
784 static inline int obd_connect(const struct lu_env *env,
785 struct lustre_handle *conn,struct obd_device *obd,
786 struct obd_uuid *cluuid,
787 struct obd_connect_data *d)
791 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
796 OBD_CHECK_DEV_ACTIVE(obd);
797 OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
798 OBD_COUNTER_INCREMENT(obd, connect);
800 rc = OBP(obd, connect)(env, conn, obd, cluuid, d);
801 /* check that only subset is granted */
802 LASSERT(ergo(d != NULL,
803 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
807 static inline int obd_reconnect(struct obd_export *exp,
808 struct obd_device *obd,
809 struct obd_uuid *cluuid,
810 struct obd_connect_data *d)
814 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
820 OBD_CHECK_DEV_ACTIVE(obd);
821 OBD_CHECK_DT_OP(obd, reconnect, 0);
822 OBD_COUNTER_INCREMENT(obd, reconnect);
824 rc = OBP(obd, reconnect)(exp, obd, cluuid, d);
825 /* check that only subset is granted */
826 LASSERT(ergo(d != NULL,
827 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
831 static inline int obd_disconnect(struct obd_export *exp)
836 EXP_CHECK_DT_OP(exp, disconnect);
837 EXP_COUNTER_INCREMENT(exp, disconnect);
839 rc = OBP(exp->exp_obd, disconnect)(exp);
843 static inline int obd_fid_init(struct obd_export *exp)
848 OBD_CHECK_DT_OP(exp->exp_obd, fid_init, 0);
849 EXP_COUNTER_INCREMENT(exp, fid_init);
851 rc = OBP(exp->exp_obd, fid_init)(exp);
855 static inline int obd_fid_fini(struct obd_export *exp)
860 OBD_CHECK_DT_OP(exp->exp_obd, fid_fini, 0);
861 EXP_COUNTER_INCREMENT(exp, fid_fini);
863 rc = OBP(exp->exp_obd, fid_fini)(exp);
867 static inline int obd_fid_alloc(struct obd_export *exp,
869 struct md_op_data *op_data)
874 EXP_CHECK_DT_OP(exp, fid_alloc);
875 EXP_COUNTER_INCREMENT(exp, fid_alloc);
877 rc = OBP(exp->exp_obd, fid_alloc)(exp, fid, op_data);
881 static inline int obd_fid_delete(struct obd_export *exp,
882 const struct lu_fid *fid)
887 EXP_CHECK_DT_OP(exp, fid_delete);
888 EXP_COUNTER_INCREMENT(exp, fid_delete);
890 rc = OBP(exp->exp_obd, fid_delete)(exp, fid);
894 static inline int obd_ping(struct obd_export *exp)
899 OBD_CHECK_DT_OP(exp->exp_obd, ping, 0);
900 EXP_COUNTER_INCREMENT(exp, ping);
902 rc = OBP(exp->exp_obd, ping)(exp);
906 static inline int obd_init_export(struct obd_export *exp)
911 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
912 OBP((exp)->exp_obd, init_export))
913 rc = OBP(exp->exp_obd, init_export)(exp);
917 static inline int obd_destroy_export(struct obd_export *exp)
920 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
921 OBP((exp)->exp_obd, destroy_export))
922 OBP(exp->exp_obd, destroy_export)(exp);
926 static inline int obd_extent_calc(struct obd_export *exp,
927 struct lov_stripe_md *md,
928 int cmd, obd_off *offset)
932 EXP_CHECK_DT_OP(exp, extent_calc);
933 rc = OBP(exp->exp_obd, extent_calc)(exp, md, cmd, offset);
937 static inline struct dentry *
938 obd_lvfs_fid2dentry(struct obd_export *exp, __u64 id_ino, __u32 gen, __u64 gr)
940 LASSERT(exp->exp_obd);
942 return lvfs_fid2dentry(&exp->exp_obd->obd_lvfs_ctxt, id_ino, gen, gr,
947 obd_lvfs_open_llog(struct obd_export *exp, __u64 id_ino, struct dentry *dentry)
949 LASSERT(exp->exp_obd);
950 CERROR("FIXME what's the story here? This needs to be an obd fn?\n");
952 return lvfs_open_llog(&exp->exp_obd->obd_lvfs_ctxt, id_ino,
953 dentry, exp->exp_obd);
959 #define time_before(t1, t2) ((long)t2 - (long)t1 > 0)
962 /* @max_age is the oldest time in jiffies that we accept using a cached data.
963 * If the cache is older than @max_age we will get a new value from the
964 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
965 static inline int obd_statfs_async(struct obd_device *obd,
966 struct obd_info *oinfo,
968 struct ptlrpc_request_set *rqset)
976 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
977 OBD_COUNTER_INCREMENT(obd, statfs);
979 CDEBUG(D_SUPER, "%s: osfs %p age "LPU64", max_age "LPU64"\n",
980 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
981 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
982 rc = OBP(obd, statfs_async)(obd, oinfo, max_age, rqset);
984 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
985 " objects "LPU64"/"LPU64"\n",
986 obd->obd_name, &obd->obd_osfs,
987 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
988 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
989 spin_lock(&obd->obd_osfs_lock);
990 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
991 spin_unlock(&obd->obd_osfs_lock);
993 oinfo->oi_cb_up(oinfo, 0);
998 static inline int obd_statfs_rqset(struct obd_device *obd,
999 struct obd_statfs *osfs, __u64 max_age)
1001 struct ptlrpc_request_set *set = NULL;
1002 struct obd_info oinfo = { { { 0 } } };
1006 set = ptlrpc_prep_set();
1010 oinfo.oi_osfs = osfs;
1011 rc = obd_statfs_async(obd, &oinfo, max_age, set);
1013 rc = ptlrpc_set_wait(set);
1014 ptlrpc_set_destroy(set);
1018 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1019 * If the cache is older than @max_age we will get a new value from the
1020 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1021 static inline int obd_statfs(struct obd_device *obd, struct obd_statfs *osfs,
1030 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1031 OBD_COUNTER_INCREMENT(obd, statfs);
1033 CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n",
1034 obd->obd_osfs_age, max_age);
1035 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1036 rc = OBP(obd, statfs)(obd, osfs, max_age);
1038 spin_lock(&obd->obd_osfs_lock);
1039 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1040 obd->obd_osfs_age = cfs_time_current_64();
1041 spin_unlock(&obd->obd_osfs_lock);
1044 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1045 " objects "LPU64"/"LPU64"\n",
1046 obd->obd_name, &obd->obd_osfs,
1047 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1048 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1049 spin_lock(&obd->obd_osfs_lock);
1050 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1051 spin_unlock(&obd->obd_osfs_lock);
1056 static inline int obd_sync(struct obd_export *exp, struct obdo *oa,
1057 struct lov_stripe_md *ea, obd_size start,
1058 obd_size end, void *capa)
1063 OBD_CHECK_DT_OP(exp->exp_obd, sync, -EOPNOTSUPP);
1064 EXP_COUNTER_INCREMENT(exp, sync);
1066 rc = OBP(exp->exp_obd, sync)(exp, oa, ea, start, end, capa);
1070 static inline int obd_punch_rqset(struct obd_export *exp,
1071 struct obd_info *oinfo,
1072 struct obd_trans_info *oti)
1074 struct ptlrpc_request_set *set = NULL;
1078 EXP_CHECK_DT_OP(exp, punch);
1079 EXP_COUNTER_INCREMENT(exp, punch);
1081 set = ptlrpc_prep_set();
1085 rc = OBP(exp->exp_obd, punch)(exp, oinfo, oti, set);
1087 rc = ptlrpc_set_wait(set);
1088 ptlrpc_set_destroy(set);
1092 static inline int obd_punch(struct obd_export *exp, struct obd_info *oinfo,
1093 struct obd_trans_info *oti,
1094 struct ptlrpc_request_set *rqset)
1099 EXP_CHECK_DT_OP(exp, punch);
1100 EXP_COUNTER_INCREMENT(exp, punch);
1102 rc = OBP(exp->exp_obd, punch)(exp, oinfo, oti, rqset);
1106 static inline int obd_brw(int cmd, struct obd_export *exp,
1107 struct obd_info *oinfo, obd_count oa_bufs,
1108 struct brw_page *pg, struct obd_trans_info *oti)
1113 EXP_CHECK_DT_OP(exp, brw);
1114 EXP_COUNTER_INCREMENT(exp, brw);
1116 if (!(cmd & (OBD_BRW_RWMASK | OBD_BRW_CHECK))) {
1117 CERROR("obd_brw: cmd must be OBD_BRW_READ, OBD_BRW_WRITE, "
1118 "or OBD_BRW_CHECK\n");
1122 rc = OBP(exp->exp_obd, brw)(cmd, exp, oinfo, oa_bufs, pg, oti);
1126 static inline int obd_brw_async(int cmd, struct obd_export *exp,
1127 struct obd_info *oinfo, obd_count oa_bufs,
1128 struct brw_page *pg, struct obd_trans_info *oti,
1129 struct ptlrpc_request_set *set)
1134 EXP_CHECK_DT_OP(exp, brw_async);
1135 EXP_COUNTER_INCREMENT(exp, brw_async);
1137 if (!(cmd & OBD_BRW_RWMASK)) {
1138 CERROR("obd_brw: cmd must be OBD_BRW_READ or OBD_BRW_WRITE\n");
1142 rc = OBP(exp->exp_obd, brw_async)(cmd, exp, oinfo, oa_bufs, pg,oti,set);
1146 static inline int obd_brw_rqset(int cmd, struct obd_export *exp,
1147 struct obdo *oa, struct lov_stripe_md *lsm,
1148 obd_count oa_bufs, struct brw_page *pg,
1149 struct obd_trans_info *oti,
1150 struct obd_capa *ocapa)
1152 struct ptlrpc_request_set *set = NULL;
1153 struct obd_info oinfo = { { { 0 } } };
1158 set = ptlrpc_prep_set();
1161 atomic_set(&nob, 0);
1162 set->set_countp = &nob;
1166 oinfo.oi_capa = ocapa;
1167 rc = obd_brw_async(cmd, exp, &oinfo, oa_bufs, pg, oti, set);
1169 rc = ptlrpc_set_wait(set);
1171 CERROR("error from callback: rc = %d\n", rc);
1173 rc = atomic_read(&nob);
1175 CDEBUG(rc == -ENOSPC ? D_INODE : D_ERROR,
1176 "error from obd_brw_async: rc = %d\n", rc);
1178 ptlrpc_set_destroy(set);
1182 static inline int obd_prep_async_page(struct obd_export *exp,
1183 struct lov_stripe_md *lsm,
1184 struct lov_oinfo *loi,
1185 cfs_page_t *page, obd_off offset,
1186 struct obd_async_page_ops *ops,
1187 void *data, void **res)
1192 EXP_CHECK_DT_OP(exp, prep_async_page);
1193 EXP_COUNTER_INCREMENT(exp, prep_async_page);
1195 ret = OBP(exp->exp_obd, prep_async_page)(exp, lsm, loi, page, offset,
1200 static inline int obd_queue_async_io(struct obd_export *exp,
1201 struct lov_stripe_md *lsm,
1202 struct lov_oinfo *loi, void *cookie,
1203 int cmd, obd_off off, int count,
1204 obd_flag brw_flags, obd_flag async_flags)
1209 EXP_CHECK_DT_OP(exp, queue_async_io);
1210 EXP_COUNTER_INCREMENT(exp, queue_async_io);
1211 LASSERT(cmd & OBD_BRW_RWMASK);
1213 rc = OBP(exp->exp_obd, queue_async_io)(exp, lsm, loi, cookie, cmd, off,
1214 count, brw_flags, async_flags);
1218 static inline int obd_set_async_flags(struct obd_export *exp,
1219 struct lov_stripe_md *lsm,
1220 struct lov_oinfo *loi, void *cookie,
1221 obd_flag async_flags)
1226 EXP_CHECK_DT_OP(exp, set_async_flags);
1227 EXP_COUNTER_INCREMENT(exp, set_async_flags);
1229 rc = OBP(exp->exp_obd, set_async_flags)(exp, lsm, loi, cookie,
1234 static inline int obd_queue_group_io(struct obd_export *exp,
1235 struct lov_stripe_md *lsm,
1236 struct lov_oinfo *loi,
1237 struct obd_io_group *oig,
1238 void *cookie, int cmd, obd_off off,
1239 int count, obd_flag brw_flags,
1240 obd_flag async_flags)
1245 EXP_CHECK_DT_OP(exp, queue_group_io);
1246 EXP_COUNTER_INCREMENT(exp, queue_group_io);
1247 LASSERT(cmd & OBD_BRW_RWMASK);
1249 rc = OBP(exp->exp_obd, queue_group_io)(exp, lsm, loi, oig, cookie,
1250 cmd, off, count, brw_flags,
1255 static inline int obd_trigger_group_io(struct obd_export *exp,
1256 struct lov_stripe_md *lsm,
1257 struct lov_oinfo *loi,
1258 struct obd_io_group *oig)
1263 EXP_CHECK_DT_OP(exp, trigger_group_io);
1264 EXP_COUNTER_INCREMENT(exp, trigger_group_io);
1266 rc = OBP(exp->exp_obd, trigger_group_io)(exp, lsm, loi, oig);
1270 static inline int obd_teardown_async_page(struct obd_export *exp,
1271 struct lov_stripe_md *lsm,
1272 struct lov_oinfo *loi, void *cookie)
1277 EXP_CHECK_DT_OP(exp, teardown_async_page);
1278 EXP_COUNTER_INCREMENT(exp, teardown_async_page);
1280 rc = OBP(exp->exp_obd, teardown_async_page)(exp, lsm, loi, cookie);
1284 static inline int obd_preprw(int cmd, struct obd_export *exp, struct obdo *oa,
1285 int objcount, struct obd_ioobj *obj,
1286 int niocount, struct niobuf_remote *remote,
1287 struct niobuf_local *local,
1288 struct obd_trans_info *oti,
1289 struct lustre_capa *capa)
1294 EXP_CHECK_DT_OP(exp, preprw);
1295 EXP_COUNTER_INCREMENT(exp, preprw);
1297 rc = OBP(exp->exp_obd, preprw)(cmd, exp, oa, objcount, obj, niocount,
1298 remote, local, oti, capa);
1302 static inline int obd_commitrw(int cmd, struct obd_export *exp, struct obdo *oa,
1303 int objcount, struct obd_ioobj *obj,
1304 int niocount, struct niobuf_local *local,
1305 struct obd_trans_info *oti, int rc)
1309 EXP_CHECK_DT_OP(exp, commitrw);
1310 EXP_COUNTER_INCREMENT(exp, commitrw);
1312 rc = OBP(exp->exp_obd, commitrw)(cmd, exp, oa, objcount, obj, niocount,
1317 static inline int obd_merge_lvb(struct obd_export *exp,
1318 struct lov_stripe_md *lsm,
1319 struct ost_lvb *lvb, int kms_only)
1324 EXP_CHECK_DT_OP(exp, merge_lvb);
1325 EXP_COUNTER_INCREMENT(exp, merge_lvb);
1327 rc = OBP(exp->exp_obd, merge_lvb)(exp, lsm, lvb, kms_only);
1331 static inline int obd_adjust_kms(struct obd_export *exp,
1332 struct lov_stripe_md *lsm, obd_off size,
1338 EXP_CHECK_DT_OP(exp, adjust_kms);
1339 EXP_COUNTER_INCREMENT(exp, adjust_kms);
1341 rc = OBP(exp->exp_obd, adjust_kms)(exp, lsm, size, shrink);
1345 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1346 int len, void *karg, void *uarg)
1351 EXP_CHECK_DT_OP(exp, iocontrol);
1352 EXP_COUNTER_INCREMENT(exp, iocontrol);
1354 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1358 static inline int obd_enqueue_rqset(struct obd_export *exp,
1359 struct obd_info *oinfo,
1360 struct ldlm_enqueue_info *einfo)
1362 struct ptlrpc_request_set *set = NULL;
1366 EXP_CHECK_DT_OP(exp, enqueue);
1367 EXP_COUNTER_INCREMENT(exp, enqueue);
1369 set = ptlrpc_prep_set();
1373 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1375 rc = ptlrpc_set_wait(set);
1376 ptlrpc_set_destroy(set);
1380 static inline int obd_enqueue(struct obd_export *exp,
1381 struct obd_info *oinfo,
1382 struct ldlm_enqueue_info *einfo,
1383 struct ptlrpc_request_set *set)
1388 EXP_CHECK_DT_OP(exp, enqueue);
1389 EXP_COUNTER_INCREMENT(exp, enqueue);
1391 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1395 static inline int obd_match(struct obd_export *exp, struct lov_stripe_md *ea,
1396 __u32 type, ldlm_policy_data_t *policy, __u32 mode,
1397 int *flags, void *data, struct lustre_handle *lockh)
1402 EXP_CHECK_DT_OP(exp, match);
1403 EXP_COUNTER_INCREMENT(exp, match);
1405 rc = OBP(exp->exp_obd, match)(exp, ea, type, policy, mode, flags, data,
1410 static inline int obd_change_cbdata(struct obd_export *exp,
1411 struct lov_stripe_md *lsm,
1412 ldlm_iterator_t it, void *data)
1417 EXP_CHECK_DT_OP(exp, change_cbdata);
1418 EXP_COUNTER_INCREMENT(exp, change_cbdata);
1420 rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data);
1424 static inline int obd_cancel(struct obd_export *exp,
1425 struct lov_stripe_md *ea, __u32 mode,
1426 struct lustre_handle *lockh)
1431 EXP_CHECK_DT_OP(exp, cancel);
1432 EXP_COUNTER_INCREMENT(exp, cancel);
1434 rc = OBP(exp->exp_obd, cancel)(exp, ea, mode, lockh);
1438 static inline int obd_cancel_unused(struct obd_export *exp,
1439 struct lov_stripe_md *ea,
1440 int flags, void *opaque)
1445 EXP_CHECK_DT_OP(exp, cancel_unused);
1446 EXP_COUNTER_INCREMENT(exp, cancel_unused);
1448 rc = OBP(exp->exp_obd, cancel_unused)(exp, ea, flags, opaque);
1452 static inline int obd_join_lru(struct obd_export *exp,
1453 struct lov_stripe_md *ea, int join)
1458 EXP_CHECK_DT_OP(exp, join_lru);
1459 EXP_COUNTER_INCREMENT(exp, join_lru);
1461 rc = OBP(exp->exp_obd, join_lru)(exp, ea, join);
1465 static inline int obd_pin(struct obd_export *exp, const struct lu_fid *fid,
1466 struct obd_capa *oc, struct obd_client_handle *handle,
1472 EXP_CHECK_DT_OP(exp, pin);
1473 EXP_COUNTER_INCREMENT(exp, pin);
1475 rc = OBP(exp->exp_obd, pin)(exp, fid, oc, handle, flag);
1479 static inline int obd_unpin(struct obd_export *exp,
1480 struct obd_client_handle *handle, int flag)
1485 EXP_CHECK_DT_OP(exp, unpin);
1486 EXP_COUNTER_INCREMENT(exp, unpin);
1488 rc = OBP(exp->exp_obd, unpin)(exp, handle, flag);
1493 static inline void obd_import_event(struct obd_device *obd,
1494 struct obd_import *imp,
1495 enum obd_import_event event)
1499 CERROR("NULL device\n");
1503 if (obd->obd_set_up && OBP(obd, import_event)) {
1504 OBD_COUNTER_INCREMENT(obd, import_event);
1505 OBP(obd, import_event)(obd, imp, event);
1510 static inline int obd_llog_connect(struct obd_export *exp,
1511 struct llogd_conn_body *body)
1516 OBD_CHECK_DT_OP(exp->exp_obd, llog_connect, 0);
1517 EXP_COUNTER_INCREMENT(exp, llog_connect);
1519 rc = OBP(exp->exp_obd, llog_connect)(exp, body);
1524 static inline int obd_notify(struct obd_device *obd,
1525 struct obd_device *watched,
1526 enum obd_notify_event ev,
1533 /* the check for async_recov is a complete hack - I'm hereby
1534 overloading the meaning to also mean "this was called from
1535 mds_postsetup". I know that my mds is able to handle notifies
1536 by this point, and it needs to get them to execute mds_postrecov. */
1537 if (!obd->obd_set_up && !obd->obd_async_recov) {
1538 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1542 if (!OBP(obd, notify)) {
1543 CERROR("obd %s has no notify handler\n", obd->obd_name);
1547 OBD_COUNTER_INCREMENT(obd, notify);
1548 rc = OBP(obd, notify)(obd, watched, ev, data);
1552 static inline int obd_notify_observer(struct obd_device *observer,
1553 struct obd_device *observed,
1554 enum obd_notify_event ev,
1560 struct obd_notify_upcall *onu;
1562 if (observer->obd_observer)
1563 rc1 = obd_notify(observer->obd_observer, observed, ev, data);
1567 * Also, call non-obd listener, if any
1569 onu = &observer->obd_upcall;
1570 if (onu->onu_upcall != NULL)
1571 rc2 = onu->onu_upcall(observer, observed, ev, onu->onu_owner);
1575 return rc1 ? rc1 : rc2;
1578 static inline int obd_quotacheck(struct obd_export *exp,
1579 struct obd_quotactl *oqctl)
1584 EXP_CHECK_DT_OP(exp, quotacheck);
1585 EXP_COUNTER_INCREMENT(exp, quotacheck);
1587 rc = OBP(exp->exp_obd, quotacheck)(exp, oqctl);
1591 static inline int obd_quotactl(struct obd_export *exp,
1592 struct obd_quotactl *oqctl)
1597 EXP_CHECK_DT_OP(exp, quotactl);
1598 EXP_COUNTER_INCREMENT(exp, quotactl);
1600 rc = OBP(exp->exp_obd, quotactl)(exp, oqctl);
1604 static inline int obd_health_check(struct obd_device *obd)
1606 /* returns: 0 on healthy
1607 * >0 on unhealthy + reason code/flag
1608 * however the only suppored reason == 1 right now
1609 * We'll need to define some better reasons
1610 * or flags in the future.
1616 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1617 if (obd == NULL || !OBT(obd)) {
1618 CERROR("cleaned up obd\n");
1619 RETURN(-EOPNOTSUPP);
1621 if (!obd->obd_set_up || obd->obd_stopping)
1623 if (!OBP(obd, health_check))
1626 rc = OBP(obd, health_check)(obd);
1630 static inline int obd_register_observer(struct obd_device *obd,
1631 struct obd_device *observer)
1635 if (obd->obd_observer && observer)
1637 obd->obd_observer = observer;
1641 /* metadata helpers */
1642 static inline int md_getstatus(struct obd_export *exp,
1643 struct lu_fid *fid, struct obd_capa **pc)
1648 EXP_CHECK_MD_OP(exp, getstatus);
1649 EXP_MD_COUNTER_INCREMENT(exp, getstatus);
1650 rc = MDP(exp->exp_obd, getstatus)(exp, fid, pc);
1654 static inline int md_getattr(struct obd_export *exp, const struct lu_fid *fid,
1655 struct obd_capa *oc, obd_valid valid, int ea_size,
1656 struct ptlrpc_request **request)
1660 EXP_CHECK_MD_OP(exp, getattr);
1661 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1662 rc = MDP(exp->exp_obd, getattr)(exp, fid, oc, valid,
1667 static inline int md_change_cbdata(struct obd_export *exp,
1668 const struct lu_fid *fid,
1669 ldlm_iterator_t it, void *data)
1673 EXP_CHECK_MD_OP(exp, change_cbdata);
1674 EXP_MD_COUNTER_INCREMENT(exp, change_cbdata);
1675 rc = MDP(exp->exp_obd, change_cbdata)(exp, fid, it, data);
1679 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1680 struct obd_client_handle *och,
1681 struct ptlrpc_request **request)
1685 EXP_CHECK_MD_OP(exp, close);
1686 EXP_MD_COUNTER_INCREMENT(exp, close);
1687 rc = MDP(exp->exp_obd, close)(exp, op_data, och, request);
1691 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1692 const void *data, int datalen, int mode, __u32 uid,
1693 __u32 gid, __u32 cap_effective, __u64 rdev,
1694 struct ptlrpc_request **request)
1698 EXP_CHECK_MD_OP(exp, create);
1699 EXP_MD_COUNTER_INCREMENT(exp, create);
1700 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1701 uid, gid, cap_effective, rdev, request);
1705 static inline int md_done_writing(struct obd_export *exp,
1706 struct md_op_data *op_data,
1707 struct obd_client_handle *och)
1711 EXP_CHECK_MD_OP(exp, done_writing);
1712 EXP_MD_COUNTER_INCREMENT(exp, done_writing);
1713 rc = MDP(exp->exp_obd, done_writing)(exp, op_data, och);
1717 static inline int md_enqueue(struct obd_export *exp,
1718 struct ldlm_enqueue_info *einfo,
1719 struct lookup_intent *it,
1720 struct md_op_data *op_data,
1721 struct lustre_handle *lockh,
1722 void *lmm, int lmmsize,
1723 int extra_lock_flags)
1727 EXP_CHECK_MD_OP(exp, enqueue);
1728 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1729 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, it, op_data, lockh,
1730 lmm, lmmsize, extra_lock_flags);
1734 static inline int md_getattr_name(struct obd_export *exp,
1735 const struct lu_fid *fid, struct obd_capa *oc,
1736 const char *name, int namelen,
1737 obd_valid valid, int ea_size,
1738 struct ptlrpc_request **request)
1742 EXP_CHECK_MD_OP(exp, getattr_name);
1743 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1744 rc = MDP(exp->exp_obd, getattr_name)(exp, fid, oc, name, namelen,
1745 valid, ea_size, request);
1749 static inline int md_intent_lock(struct obd_export *exp,
1750 struct md_op_data *op_data, void *lmm,
1751 int lmmsize, struct lookup_intent *it,
1752 int flags, struct ptlrpc_request **reqp,
1753 ldlm_blocking_callback cb_blocking,
1754 int extra_lock_flags)
1758 EXP_CHECK_MD_OP(exp, intent_lock);
1759 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1760 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, lmm, lmmsize,
1761 it, flags, reqp, cb_blocking,
1766 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1767 struct ptlrpc_request **request)
1771 EXP_CHECK_MD_OP(exp, link);
1772 EXP_MD_COUNTER_INCREMENT(exp, link);
1773 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1777 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1778 const char *old, int oldlen, const char *new,
1779 int newlen, struct ptlrpc_request **request)
1783 EXP_CHECK_MD_OP(exp, rename);
1784 EXP_MD_COUNTER_INCREMENT(exp, rename);
1785 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
1790 static inline int md_is_subdir(struct obd_export *exp,
1791 const struct lu_fid *pfid,
1792 const struct lu_fid *cfid,
1793 struct ptlrpc_request **request)
1797 EXP_CHECK_MD_OP(exp, is_subdir);
1798 EXP_MD_COUNTER_INCREMENT(exp, is_subdir);
1799 rc = MDP(exp->exp_obd, is_subdir)(exp, pfid, cfid, request);
1803 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
1804 void *ea, int ealen, void *ea2, int ea2len,
1805 struct ptlrpc_request **request)
1809 EXP_CHECK_MD_OP(exp, setattr);
1810 EXP_MD_COUNTER_INCREMENT(exp, setattr);
1811 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen,
1812 ea2, ea2len, request);
1816 static inline int md_sync(struct obd_export *exp, const struct lu_fid *fid,
1817 struct obd_capa *oc, struct ptlrpc_request **request)
1821 EXP_CHECK_MD_OP(exp, sync);
1822 EXP_MD_COUNTER_INCREMENT(exp, sync);
1823 rc = MDP(exp->exp_obd, sync)(exp, fid, oc, request);
1827 static inline int md_readpage(struct obd_export *exp, const struct lu_fid *fid,
1828 struct obd_capa *oc, __u64 offset,
1830 struct ptlrpc_request **request)
1834 EXP_CHECK_MD_OP(exp, readpage);
1835 EXP_MD_COUNTER_INCREMENT(exp, readpage);
1836 rc = MDP(exp->exp_obd, readpage)(exp, fid, oc, offset, page, request);
1840 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
1841 struct ptlrpc_request **request)
1845 EXP_CHECK_MD_OP(exp, unlink);
1846 EXP_MD_COUNTER_INCREMENT(exp, unlink);
1847 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
1851 static inline int md_get_lustre_md(struct obd_export *exp,
1852 struct ptlrpc_request *req,
1853 int offset, struct obd_export *dt_exp,
1854 struct obd_export *md_exp,
1855 struct lustre_md *md)
1858 EXP_CHECK_MD_OP(exp, get_lustre_md);
1859 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
1860 RETURN(MDP(exp->exp_obd, get_lustre_md)(exp, req, offset,
1861 dt_exp, md_exp, md));
1864 static inline int md_free_lustre_md(struct obd_export *exp,
1865 struct lustre_md *md)
1868 EXP_CHECK_MD_OP(exp, free_lustre_md);
1869 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
1870 RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md));
1873 static inline int md_setxattr(struct obd_export *exp,
1874 const struct lu_fid *fid, struct obd_capa *oc,
1875 obd_valid valid, const char *name,
1876 const char *input, int input_size,
1877 int output_size, int flags,
1878 struct ptlrpc_request **request)
1881 EXP_CHECK_MD_OP(exp, setxattr);
1882 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
1883 RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, oc, valid, name, input,
1884 input_size, output_size, flags,
1888 static inline int md_getxattr(struct obd_export *exp,
1889 const struct lu_fid *fid, struct obd_capa *oc,
1890 obd_valid valid, const char *name,
1891 const char *input, int input_size,
1892 int output_size, int flags,
1893 struct ptlrpc_request **request)
1896 EXP_CHECK_MD_OP(exp, getxattr);
1897 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
1898 RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, oc, valid, name, input,
1899 input_size, output_size, flags,
1903 static inline int md_set_open_replay_data(struct obd_export *exp,
1904 struct obd_client_handle *och,
1905 struct ptlrpc_request *open_req)
1908 EXP_CHECK_MD_OP(exp, set_open_replay_data);
1909 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
1910 RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, open_req));
1913 static inline int md_clear_open_replay_data(struct obd_export *exp,
1914 struct obd_client_handle *och)
1917 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
1918 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
1919 RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och));
1922 static inline int md_set_lock_data(struct obd_export *exp,
1923 __u64 *lockh, void *data)
1926 EXP_CHECK_MD_OP(exp, set_lock_data);
1927 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
1928 RETURN(MDP(exp->exp_obd, set_lock_data)(exp, lockh, data));
1931 static inline int md_cancel_unused(struct obd_export *exp,
1932 const struct lu_fid *fid,
1933 ldlm_policy_data_t *policy,
1934 ldlm_mode_t mode, int flags, void *opaque)
1939 EXP_CHECK_MD_OP(exp, cancel_unused);
1940 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
1942 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
1947 static inline int md_lock_match(struct obd_export *exp, int flags,
1948 const struct lu_fid *fid, ldlm_type_t type,
1949 ldlm_policy_data_t *policy, ldlm_mode_t mode,
1950 struct lustre_handle *lockh)
1953 EXP_CHECK_MD_OP(exp, lock_match);
1954 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
1955 RETURN(MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
1956 policy, mode, lockh));
1959 static inline int md_init_ea_size(struct obd_export *exp, int easize,
1960 int def_asize, int cookiesize)
1963 EXP_CHECK_MD_OP(exp, init_ea_size);
1964 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
1965 RETURN(MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
1969 static inline int md_get_remote_perm(struct obd_export *exp,
1970 const struct lu_fid *fid,
1971 struct obd_capa *oc,
1972 struct ptlrpc_request **request)
1975 EXP_CHECK_MD_OP(exp, get_remote_perm);
1976 EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm);
1977 RETURN(MDP(exp->exp_obd, get_remote_perm)(exp, fid, oc, request));
1980 static inline int md_renew_capa(struct obd_export *exp, struct obd_capa *ocapa,
1985 EXP_CHECK_MD_OP(exp, renew_capa);
1986 EXP_MD_COUNTER_INCREMENT(exp, renew_capa);
1987 rc = MDP(exp->exp_obd, renew_capa)(exp, ocapa, cb);
1991 /* OBD Metadata Support */
1993 extern int obd_init_caches(void);
1994 extern void obd_cleanup_caches(void);
1996 /* support routines */
1997 extern cfs_mem_cache_t *obdo_cachep;
1999 #define OBDO_ALLOC(ptr) \
2001 OBD_SLAB_ALLOC_PTR((ptr), obdo_cachep); \
2004 #define OBDO_FREE(ptr) \
2006 OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
2010 static inline void obdo2fid(struct obdo *oa, struct lu_fid *fid)
2012 /* something here */
2015 static inline void fid2obdo(struct lu_fid *fid, struct obdo *oa)
2017 /* something here */
2020 /* I'm as embarrassed about this as you are.
2022 * <shaver> // XXX do not look into _superhack with remaining eye
2023 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
2024 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
2027 extern void obd_sysctl_init (void);
2028 extern void obd_sysctl_clean (void);
2031 typedef __u8 class_uuid_t[16];
2032 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
2035 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
2036 int class_add_uuid(const char *uuid, __u64 nid);
2037 int class_del_uuid (const char *uuid);
2038 void class_init_uuidlist(void);
2039 void class_exit_uuidlist(void);
2042 int mea_name2idx(struct lmv_stripe_md *mea, const char *name, int namelen);
2043 int raw_name2idx(int hashtype, int count, const char *name, int namelen);
2046 void ll_generate_random_uuid(class_uuid_t uuid_out);
2048 #endif /* __LINUX_OBD_CLASS_H */