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.
26 # include <liblustre.h>
29 #include <obd_support.h>
30 #include <lustre_import.h>
31 #include <lustre_net.h>
33 #include <lustre_lib.h>
34 #include <lustre/lustre_idl.h>
35 #include <lprocfs_status.h>
37 #if defined(__linux__)
38 #include <linux/obd_class.h>
39 #elif defined(__APPLE__)
40 #include <darwin/obd_class.h>
41 #elif defined(__WINNT__)
42 #include <winnt/obd_class.h>
44 #error Unsupported operating system.
47 /* OBD Device Declarations */
48 extern struct obd_device *obd_devs[MAX_OBD_DEVICES];
49 extern spinlock_t obd_dev_lock;
51 /* OBD Operations Declarations */
52 extern struct obd_device *class_conn2obd(struct lustre_handle *);
53 extern struct obd_device *class_exp2obd(struct obd_export *);
55 struct lu_device_type;
58 struct obd_export *class_conn2export(struct lustre_handle *);
59 int class_register_type(struct obd_ops *, struct md_ops *,
60 struct lprocfs_vars *, const char *nm,
61 struct lu_device_type *ldt);
62 int class_unregister_type(const char *nm);
64 struct obd_device *class_newdev(const char *type_name, const char *name);
65 void class_release_dev(struct obd_device *obd);
67 int class_name2dev(const char *name);
68 struct obd_device *class_name2obd(const char *name);
69 int class_uuid2dev(struct obd_uuid *uuid);
70 struct obd_device *class_uuid2obd(struct obd_uuid *uuid);
71 void class_obd_list(void);
72 struct obd_device * class_find_client_obd(struct obd_uuid *tgt_uuid,
73 const char * typ_name,
74 struct obd_uuid *grp_uuid);
75 struct obd_device * class_find_client_notype(struct obd_uuid *tgt_uuid,
76 struct obd_uuid *grp_uuid);
77 struct obd_device * class_devices_in_group(struct obd_uuid *grp_uuid,
79 struct obd_device * class_num2obd(int num);
81 int oig_init(struct obd_io_group **oig);
82 int oig_add_one(struct obd_io_group *oig, struct oig_callback_context *occ);
83 void oig_complete_one(struct obd_io_group *oig,
84 struct oig_callback_context *occ, int rc);
85 void oig_release(struct obd_io_group *oig);
86 int oig_wait(struct obd_io_group *oig);
88 char *obd_export_nid2str(struct obd_export *exp);
90 int obd_export_evict_by_nid(struct obd_device *obd, const char *nid);
91 int obd_export_evict_by_uuid(struct obd_device *obd, const char *uuid);
93 int obd_zombie_impexp_init(void);
94 void obd_zombie_impexp_stop(void);
95 void obd_zombie_impexp_cull(void);
98 int class_process_config(struct lustre_cfg *lcfg);
99 int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
100 struct lustre_cfg *lcfg, void *data);
101 int class_attach(struct lustre_cfg *lcfg);
102 int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
103 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg);
104 int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg);
105 struct obd_device *class_incref(struct obd_device *obd);
106 void class_decref(struct obd_device *obd);
110 extern void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars);
112 static inline void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars)
114 memset(lvars, 0, sizeof(*lvars));
118 #define CFG_F_START 0x01 /* Set when we start updating from a log */
119 #define CFG_F_MARKER 0x02 /* We are within a maker */
120 #define CFG_F_SKIP 0x04 /* We should ignore this cfg command */
121 #define CFG_F_COMPAT146 0x08 /* Allow old-style logs */
122 #define CFG_F_EXCLUDE 0x10 /* OST exclusion list */
124 /* Passed as data param to class_config_parse_llog */
125 struct config_llog_instance {
127 struct super_block *cfg_sb;
128 struct obd_uuid cfg_uuid;
129 int cfg_last_idx; /* for partial llog processing */
132 int class_config_parse_llog(struct llog_ctxt *ctxt, char *name,
133 struct config_llog_instance *cfg);
134 int class_config_dump_llog(struct llog_ctxt *ctxt, char *name,
135 struct config_llog_instance *cfg);
137 /* list of active configuration logs */
138 struct config_llog_data {
140 struct ldlm_res_id cld_resid;
141 struct config_llog_instance cld_cfg;
142 struct list_head cld_list_chain;
143 atomic_t cld_refcount;
144 struct obd_export *cld_mgcexp;
145 unsigned int cld_stopping:1, /* we were told to stop watching */
146 cld_lostlock:1; /* lock not requeued */
149 struct lustre_profile {
150 struct list_head lp_list;
156 struct lustre_profile *class_get_profile(const char * prof);
157 void class_del_profile(const char *prof);
158 void class_del_profiles(void);
160 #define class_export_rpc_get(exp) \
162 atomic_inc(&(exp)->exp_rpc_count); \
163 CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \
164 (exp), atomic_read(&(exp)->exp_rpc_count)); \
165 class_export_get(exp); \
168 #define class_export_rpc_put(exp) \
170 atomic_dec(&(exp)->exp_rpc_count); \
171 CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \
172 (exp), atomic_read(&(exp)->exp_rpc_count)); \
173 class_export_put(exp); \
177 #define class_export_get(exp) \
179 struct obd_export *exp_ = exp; \
180 atomic_inc(&exp_->exp_refcount); \
181 CDEBUG(D_INFO, "GETting export %p : new refcount %d\n", exp_, \
182 atomic_read(&exp_->exp_refcount)); \
186 #define class_export_put(exp) \
188 LASSERT((exp) != NULL); \
189 CDEBUG(D_INFO, "PUTting export %p : new refcount %d\n", (exp), \
190 atomic_read(&(exp)->exp_refcount) - 1); \
191 LASSERT(atomic_read(&(exp)->exp_refcount) > 0); \
192 LASSERT(atomic_read(&(exp)->exp_refcount) < 0x5a5a5a); \
193 __class_export_put(exp); \
196 void __class_export_put(struct obd_export *);
197 struct obd_export *class_new_export(struct obd_device *obddev,
198 struct obd_uuid *cluuid);
199 void class_unlink_export(struct obd_export *exp);
201 struct obd_import *class_import_get(struct obd_import *);
202 void class_import_put(struct obd_import *);
203 struct obd_import *class_new_import(struct obd_device *obd);
204 void class_destroy_import(struct obd_import *exp);
206 struct obd_type *class_search_type(const char *name);
207 struct obd_type *class_get_type(const char *name);
208 void class_put_type(struct obd_type *type);
209 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
210 struct obd_uuid *cluuid);
211 int class_disconnect(struct obd_export *exp);
212 void class_fail_export(struct obd_export *exp);
213 void class_disconnect_exports(struct obd_device *obddev);
214 int class_disconnect_stale_exports(struct obd_device *,
215 int (*test_export)(struct obd_export *));
216 int class_manual_cleanup(struct obd_device *obd);
218 void obdo_cpy_md(struct obdo *dst, struct obdo *src, obd_flag valid);
219 void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj);
220 void obdo_from_iattr(struct obdo *oa, struct iattr *attr,
221 unsigned int ia_valid);
222 void iattr_from_obdo(struct iattr *attr, struct obdo *oa, obd_flag valid);
223 void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, obd_flag valid);
224 void obdo_from_md(struct obdo *oa, struct md_op_data *op_data,
227 #define OBT(dev) (dev)->obd_type
228 #define OBP(dev, op) (dev)->obd_type->typ_dt_ops->o_ ## op
229 #define MDP(dev, op) (dev)->obd_type->typ_md_ops->m_ ## op
230 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
232 /* Ensure obd_setup: used for cleanup which must be called
233 while obd is stopping */
234 #define OBD_CHECK_DEV(obd) \
237 CERROR("NULL device\n"); \
242 /* ensure obd_setup and !obd_stopping */
243 #define OBD_CHECK_DEV_ACTIVE(obd) \
245 OBD_CHECK_DEV(obd); \
246 if (!(obd)->obd_set_up || (obd)->obd_stopping) { \
247 CERROR("Device %d not setup\n", \
255 #define OBD_COUNTER_OFFSET(op) \
256 ((offsetof(struct obd_ops, o_ ## op) - \
257 offsetof(struct obd_ops, o_iocontrol)) \
258 / sizeof(((struct obd_ops *)(0))->o_iocontrol))
260 #define OBD_COUNTER_INCREMENT(obdx, op) \
261 if ((obdx)->obd_stats != NULL) { \
262 unsigned int coffset; \
263 coffset = (unsigned int)((obdx)->obd_cntr_base) + \
264 OBD_COUNTER_OFFSET(op); \
265 LASSERT(coffset < (obdx)->obd_stats->ls_num); \
266 lprocfs_counter_incr((obdx)->obd_stats, coffset); \
269 #define EXP_COUNTER_INCREMENT(export, op) \
270 if ((export)->exp_obd->obd_stats != NULL) { \
271 unsigned int coffset; \
272 coffset = (unsigned int)((export)->exp_obd->obd_cntr_base) + \
273 OBD_COUNTER_OFFSET(op); \
274 LASSERT(coffset < (export)->exp_obd->obd_stats->ls_num); \
275 lprocfs_counter_incr((export)->exp_obd->obd_stats, coffset); \
276 if ((export)->exp_nid_stats != NULL && \
277 (export)->exp_nid_stats->nid_stats != NULL) \
278 lprocfs_counter_incr( \
279 (export)->exp_nid_stats->nid_stats, coffset);\
282 #define MD_COUNTER_OFFSET(op) \
283 ((offsetof(struct md_ops, m_ ## op) - \
284 offsetof(struct md_ops, m_getstatus)) \
285 / sizeof(((struct md_ops *)(0))->m_getstatus))
287 #define MD_COUNTER_INCREMENT(obdx, op) \
288 if ((obd)->md_stats != NULL) { \
289 unsigned int coffset; \
290 coffset = (unsigned int)((obdx)->md_cntr_base) + \
291 MD_COUNTER_OFFSET(op); \
292 LASSERT(coffset < (obdx)->md_stats->ls_num); \
293 lprocfs_counter_incr((obdx)->md_stats, coffset); \
296 #define EXP_MD_COUNTER_INCREMENT(export, op) \
297 if ((export)->exp_obd->obd_stats != NULL) { \
298 unsigned int coffset; \
299 coffset = (unsigned int)((export)->exp_obd->md_cntr_base) + \
300 MD_COUNTER_OFFSET(op); \
301 LASSERT(coffset < (export)->exp_obd->md_stats->ls_num); \
302 lprocfs_counter_incr((export)->exp_obd->md_stats, coffset); \
303 if ((export)->exp_md_stats != NULL) \
304 lprocfs_counter_incr( \
305 (export)->exp_md_stats, coffset); \
309 #define OBD_COUNTER_OFFSET(op)
310 #define OBD_COUNTER_INCREMENT(obd, op)
311 #define EXP_COUNTER_INCREMENT(exp, op)
312 #define MD_COUNTER_INCREMENT(obd, op)
313 #define EXP_MD_COUNTER_INCREMENT(exp, op)
316 #define OBD_CHECK_MD_OP(obd, op, err) \
318 if (!OBT(obd) || !MDP((obd), op)) { \
320 CERROR("md_" #op ": dev %s/%d no operation\n", \
321 obd->obd_name, obd->obd_minor); \
326 #define EXP_CHECK_MD_OP(exp, op) \
328 if ((exp) == NULL) { \
329 CERROR("obd_" #op ": NULL export\n"); \
332 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
333 CERROR("obd_" #op ": cleaned up obd\n"); \
334 RETURN(-EOPNOTSUPP); \
336 if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
337 CERROR("obd_" #op ": dev %s/%d no operation\n", \
338 (exp)->exp_obd->obd_name, \
339 (exp)->exp_obd->obd_minor); \
340 RETURN(-EOPNOTSUPP); \
345 #define OBD_CHECK_DT_OP(obd, op, err) \
347 if (!OBT(obd) || !OBP((obd), op)) { \
349 CERROR("obd_" #op ": dev %d no operation\n", \
355 #define EXP_CHECK_DT_OP(exp, op) \
357 if ((exp) == NULL) { \
358 CERROR("obd_" #op ": NULL export\n"); \
361 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
362 CERROR("obd_" #op ": cleaned up obd\n"); \
363 RETURN(-EOPNOTSUPP); \
365 if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
366 CERROR("obd_" #op ": dev %d no operation\n", \
367 (exp)->exp_obd->obd_minor); \
368 RETURN(-EOPNOTSUPP); \
372 #define CTXT_CHECK_OP(ctxt, op, err) \
374 if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
376 CERROR("lop_" #op ": dev %d no operation\n", \
377 ctxt->loc_obd->obd_minor); \
382 static inline int class_devno_max(void)
384 return MAX_OBD_DEVICES;
387 static inline int obd_get_info(struct obd_export *exp, __u32 keylen,
388 void *key, __u32 *vallen, void *val)
393 EXP_CHECK_DT_OP(exp, get_info);
394 EXP_COUNTER_INCREMENT(exp, get_info);
396 rc = OBP(exp->exp_obd, get_info)(exp, keylen, key, vallen, val);
400 static inline int obd_set_info_async(struct obd_export *exp, obd_count keylen,
401 void *key, obd_count vallen, void *val,
402 struct ptlrpc_request_set *set)
407 EXP_CHECK_DT_OP(exp, set_info_async);
408 EXP_COUNTER_INCREMENT(exp, set_info_async);
410 rc = OBP(exp->exp_obd, set_info_async)(exp, keylen, key, vallen, val,
416 #define DECLARE_LU_VARS(ldt, d) \
417 struct lu_device_type *ldt; \
420 #define DECLARE_LU_VARS(ldt, d) \
421 extern void __placeholder_to_put_a_semicolon(void)
423 static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
426 DECLARE_LU_VARS(ldt, d);
430 ldt = obd->obd_type->typ_lu;
434 rc = lu_env_init(&env, NULL, ldt->ldt_ctx_tags);
436 d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
448 OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
449 OBD_COUNTER_INCREMENT(obd, setup);
450 rc = OBP(obd, setup)(obd, cfg);
455 static inline int obd_precleanup(struct obd_device *obd,
456 enum obd_cleanup_stage cleanup_stage)
459 DECLARE_LU_VARS(ldt, d);
464 ldt = obd->obd_type->typ_lu;
468 if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
471 rc = lu_env_init(&env, NULL, ldt->ldt_ctx_tags);
473 ldt->ldt_ops->ldto_device_fini(&env, d);
482 OBD_CHECK_DT_OP(obd, precleanup, 0);
483 rc = OBP(obd, precleanup)(obd, cleanup_stage);
486 OBD_COUNTER_INCREMENT(obd, precleanup);
490 static inline int obd_cleanup(struct obd_device *obd)
493 DECLARE_LU_VARS(ldt, d);
499 ldt = obd->obd_type->typ_lu;
505 rc = lu_env_init(&env, NULL, ldt->ldt_ctx_tags);
507 ldt->ldt_ops->ldto_device_free(&env, d);
509 obd->obd_lu_dev = NULL;
514 OBD_CHECK_DT_OP(obd, cleanup, 0);
515 rc = OBP(obd, cleanup)(obd);
517 OBD_COUNTER_INCREMENT(obd, cleanup);
522 obd_process_config(struct obd_device *obd, int datalen, void *data)
525 DECLARE_LU_VARS(ldt, d);
531 ldt = obd->obd_type->typ_lu;
533 if (ldt != NULL && d != NULL) {
536 rc = lu_env_init(&env, NULL, ldt->ldt_ctx_tags);
538 rc = d->ld_ops->ldo_process_config(&env, d, data);
544 OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
545 rc = OBP(obd, process_config)(obd, datalen, data);
547 OBD_COUNTER_INCREMENT(obd, process_config);
552 /* Pack an in-memory MD struct for storage on disk.
553 * Returns +ve size of packed MD (0 for free), or -ve error.
555 * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL).
556 * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed.
557 * If @*disk_tgt == NULL, it will be allocated
559 static inline int obd_packmd(struct obd_export *exp,
560 struct lov_mds_md **disk_tgt,
561 struct lov_stripe_md *mem_src)
566 EXP_CHECK_DT_OP(exp, packmd);
567 EXP_COUNTER_INCREMENT(exp, packmd);
569 rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src);
573 static inline int obd_size_diskmd(struct obd_export *exp,
574 struct lov_stripe_md *mem_src)
576 return obd_packmd(exp, NULL, mem_src);
579 /* helper functions */
580 static inline int obd_alloc_diskmd(struct obd_export *exp,
581 struct lov_mds_md **disk_tgt)
584 LASSERT(*disk_tgt == NULL);
585 return obd_packmd(exp, disk_tgt, NULL);
588 static inline int obd_free_diskmd(struct obd_export *exp,
589 struct lov_mds_md **disk_tgt)
593 return obd_packmd(exp, disk_tgt, NULL);
596 /* Unpack an MD struct from disk to in-memory format.
597 * Returns +ve size of unpacked MD (0 for free), or -ve error.
599 * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL).
600 * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed.
601 * If @*mem_tgt == NULL, it will be allocated
603 static inline int obd_unpackmd(struct obd_export *exp,
604 struct lov_stripe_md **mem_tgt,
605 struct lov_mds_md *disk_src,
611 EXP_CHECK_DT_OP(exp, unpackmd);
612 EXP_COUNTER_INCREMENT(exp, unpackmd);
614 rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len);
618 /* helper functions */
619 static inline int obd_alloc_memmd(struct obd_export *exp,
620 struct lov_stripe_md **mem_tgt)
623 LASSERT(*mem_tgt == NULL);
624 return obd_unpackmd(exp, mem_tgt, NULL, 0);
627 static inline int obd_free_memmd(struct obd_export *exp,
628 struct lov_stripe_md **mem_tgt)
632 return obd_unpackmd(exp, mem_tgt, NULL, 0);
635 static inline int obd_checkmd(struct obd_export *exp,
636 struct obd_export *md_exp,
637 struct lov_stripe_md *mem_tgt)
642 EXP_CHECK_DT_OP(exp, checkmd);
643 EXP_COUNTER_INCREMENT(exp, checkmd);
645 rc = OBP(exp->exp_obd, checkmd)(exp, md_exp, mem_tgt);
649 static inline int obd_precreate(struct obd_export *exp)
654 EXP_CHECK_DT_OP(exp, precreate);
655 OBD_COUNTER_INCREMENT(exp->exp_obd, precreate);
657 rc = OBP(exp->exp_obd, precreate)(exp);
661 static inline int obd_create(struct obd_export *exp, struct obdo *obdo,
662 struct lov_stripe_md **ea,
663 struct obd_trans_info *oti)
668 EXP_CHECK_DT_OP(exp, create);
669 EXP_COUNTER_INCREMENT(exp, create);
671 rc = OBP(exp->exp_obd, create)(exp, obdo, ea, oti);
675 static inline int obd_destroy(struct obd_export *exp, struct obdo *obdo,
676 struct lov_stripe_md *ea,
677 struct obd_trans_info *oti,
678 struct obd_export *md_exp)
683 EXP_CHECK_DT_OP(exp, destroy);
684 EXP_COUNTER_INCREMENT(exp, destroy);
686 rc = OBP(exp->exp_obd, destroy)(exp, obdo, ea, oti, md_exp);
690 static inline int obd_getattr(struct obd_export *exp, struct obd_info *oinfo)
695 EXP_CHECK_DT_OP(exp, getattr);
696 EXP_COUNTER_INCREMENT(exp, getattr);
698 rc = OBP(exp->exp_obd, getattr)(exp, oinfo);
702 static inline int obd_getattr_async(struct obd_export *exp,
703 struct obd_info *oinfo,
704 struct ptlrpc_request_set *set)
709 EXP_CHECK_DT_OP(exp, getattr_async);
710 EXP_COUNTER_INCREMENT(exp, getattr_async);
712 rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set);
716 static inline int obd_setattr(struct obd_export *exp, struct obd_info *oinfo,
717 struct obd_trans_info *oti)
722 EXP_CHECK_DT_OP(exp, setattr);
723 EXP_COUNTER_INCREMENT(exp, setattr);
725 rc = OBP(exp->exp_obd, setattr)(exp, oinfo, oti);
729 /* This performs all the requests set init/wait/destroy actions. */
730 static inline int obd_setattr_rqset(struct obd_export *exp,
731 struct obd_info *oinfo,
732 struct obd_trans_info *oti)
734 struct ptlrpc_request_set *set = NULL;
738 EXP_CHECK_DT_OP(exp, setattr_async);
739 EXP_COUNTER_INCREMENT(exp, setattr_async);
741 set = ptlrpc_prep_set();
745 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
747 rc = ptlrpc_set_wait(set);
748 ptlrpc_set_destroy(set);
752 /* This adds all the requests into @set if @set != NULL, otherwise
753 all requests are sent asynchronously without waiting for response. */
754 static inline int obd_setattr_async(struct obd_export *exp,
755 struct obd_info *oinfo,
756 struct obd_trans_info *oti,
757 struct ptlrpc_request_set *set)
762 EXP_CHECK_DT_OP(exp, setattr_async);
763 EXP_COUNTER_INCREMENT(exp, setattr_async);
765 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
769 static inline int obd_add_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, add_conn, -EOPNOTSUPP);
778 OBD_COUNTER_INCREMENT(obd, add_conn);
780 rc = OBP(obd, add_conn)(imp, uuid, priority);
784 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
786 struct obd_device *obd = imp->imp_obd;
790 OBD_CHECK_DEV_ACTIVE(obd);
791 OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
792 OBD_COUNTER_INCREMENT(obd, del_conn);
794 rc = OBP(obd, del_conn)(imp, uuid);
798 static inline int obd_connect(const struct lu_env *env,
799 struct lustre_handle *conn,struct obd_device *obd,
800 struct obd_uuid *cluuid,
801 struct obd_connect_data *d,
806 __u64 ocf = d ? d->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, conn, obd, cluuid, d, localdata);
816 /* check that only subset is granted */
817 LASSERT(ergo(d != NULL,
818 (d->ocd_connect_flags & ocf) == d->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
836 OBD_CHECK_DEV_ACTIVE(obd);
837 OBD_CHECK_DT_OP(obd, reconnect, 0);
838 OBD_COUNTER_INCREMENT(obd, reconnect);
840 rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d);
841 /* check that only subset is granted */
842 LASSERT(ergo(d != NULL,
843 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
847 static inline int obd_disconnect(struct obd_export *exp)
852 EXP_CHECK_DT_OP(exp, disconnect);
853 EXP_COUNTER_INCREMENT(exp, disconnect);
855 rc = OBP(exp->exp_obd, disconnect)(exp);
859 static inline int obd_fid_init(struct obd_export *exp)
864 OBD_CHECK_DT_OP(exp->exp_obd, fid_init, 0);
865 EXP_COUNTER_INCREMENT(exp, fid_init);
867 rc = OBP(exp->exp_obd, fid_init)(exp);
871 static inline int obd_fid_fini(struct obd_export *exp)
876 OBD_CHECK_DT_OP(exp->exp_obd, fid_fini, 0);
877 EXP_COUNTER_INCREMENT(exp, fid_fini);
879 rc = OBP(exp->exp_obd, fid_fini)(exp);
883 static inline int obd_fid_alloc(struct obd_export *exp,
885 struct md_op_data *op_data)
890 EXP_CHECK_DT_OP(exp, fid_alloc);
891 EXP_COUNTER_INCREMENT(exp, fid_alloc);
893 rc = OBP(exp->exp_obd, fid_alloc)(exp, fid, op_data);
897 static inline int obd_fid_delete(struct obd_export *exp,
898 const struct lu_fid *fid)
903 EXP_CHECK_DT_OP(exp, fid_delete);
904 EXP_COUNTER_INCREMENT(exp, fid_delete);
906 rc = OBP(exp->exp_obd, fid_delete)(exp, fid);
910 static inline int obd_ping(struct obd_export *exp)
915 OBD_CHECK_DT_OP(exp->exp_obd, ping, 0);
916 EXP_COUNTER_INCREMENT(exp, ping);
918 rc = OBP(exp->exp_obd, ping)(exp);
922 static inline int obd_init_export(struct obd_export *exp)
927 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
928 OBP((exp)->exp_obd, init_export))
929 rc = OBP(exp->exp_obd, init_export)(exp);
933 static inline int obd_destroy_export(struct obd_export *exp)
936 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
937 OBP((exp)->exp_obd, destroy_export))
938 OBP(exp->exp_obd, destroy_export)(exp);
942 static inline int obd_extent_calc(struct obd_export *exp,
943 struct lov_stripe_md *md,
944 int cmd, obd_off *offset)
948 EXP_CHECK_DT_OP(exp, extent_calc);
949 rc = OBP(exp->exp_obd, extent_calc)(exp, md, cmd, offset);
953 static inline struct dentry *
954 obd_lvfs_fid2dentry(struct obd_export *exp, __u64 id_ino, __u32 gen, __u64 gr)
956 LASSERT(exp->exp_obd);
958 return lvfs_fid2dentry(&exp->exp_obd->obd_lvfs_ctxt, id_ino, gen, gr,
963 obd_lvfs_open_llog(struct obd_export *exp, __u64 id_ino, struct dentry *dentry)
965 LASSERT(exp->exp_obd);
966 CERROR("FIXME what's the story here? This needs to be an obd fn?\n");
968 return lvfs_open_llog(&exp->exp_obd->obd_lvfs_ctxt, id_ino,
969 dentry, exp->exp_obd);
975 #define time_before(t1, t2) ((long)t2 - (long)t1 > 0)
978 /* @max_age is the oldest time in jiffies that we accept using a cached data.
979 * If the cache is older than @max_age we will get a new value from the
980 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
981 static inline int obd_statfs_async(struct obd_device *obd,
982 struct obd_info *oinfo,
984 struct ptlrpc_request_set *rqset)
992 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
993 OBD_COUNTER_INCREMENT(obd, statfs);
995 CDEBUG(D_SUPER, "%s: osfs %p age "LPU64", max_age "LPU64"\n",
996 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
997 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
998 rc = OBP(obd, statfs_async)(obd, oinfo, max_age, rqset);
1000 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1001 " objects "LPU64"/"LPU64"\n",
1002 obd->obd_name, &obd->obd_osfs,
1003 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1004 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1005 spin_lock(&obd->obd_osfs_lock);
1006 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
1007 spin_unlock(&obd->obd_osfs_lock);
1008 if (oinfo->oi_cb_up)
1009 oinfo->oi_cb_up(oinfo, 0);
1014 static inline int obd_statfs_rqset(struct obd_device *obd,
1015 struct obd_statfs *osfs, __u64 max_age,
1018 struct ptlrpc_request_set *set = NULL;
1019 struct obd_info oinfo = { { { 0 } } };
1023 set = ptlrpc_prep_set();
1027 oinfo.oi_osfs = osfs;
1028 oinfo.oi_flags = flags;
1029 rc = obd_statfs_async(obd, &oinfo, max_age, set);
1031 rc = ptlrpc_set_wait(set);
1032 ptlrpc_set_destroy(set);
1036 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1037 * If the cache is older than @max_age we will get a new value from the
1038 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1039 static inline int obd_statfs(struct obd_device *obd, struct obd_statfs *osfs,
1040 __u64 max_age, __u32 flags)
1048 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1049 OBD_COUNTER_INCREMENT(obd, statfs);
1051 CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n",
1052 obd->obd_osfs_age, max_age);
1053 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1054 rc = OBP(obd, statfs)(obd, osfs, max_age, flags);
1056 spin_lock(&obd->obd_osfs_lock);
1057 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1058 obd->obd_osfs_age = cfs_time_current_64();
1059 spin_unlock(&obd->obd_osfs_lock);
1062 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1063 " objects "LPU64"/"LPU64"\n",
1064 obd->obd_name, &obd->obd_osfs,
1065 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1066 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1067 spin_lock(&obd->obd_osfs_lock);
1068 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1069 spin_unlock(&obd->obd_osfs_lock);
1074 static inline int obd_sync(struct obd_export *exp, struct obdo *oa,
1075 struct lov_stripe_md *ea, obd_size start,
1076 obd_size end, void *capa)
1081 OBD_CHECK_DT_OP(exp->exp_obd, sync, -EOPNOTSUPP);
1082 EXP_COUNTER_INCREMENT(exp, sync);
1084 rc = OBP(exp->exp_obd, sync)(exp, oa, ea, start, end, capa);
1088 static inline int obd_punch_rqset(struct obd_export *exp,
1089 struct obd_info *oinfo,
1090 struct obd_trans_info *oti)
1092 struct ptlrpc_request_set *set = NULL;
1096 EXP_CHECK_DT_OP(exp, punch);
1097 EXP_COUNTER_INCREMENT(exp, punch);
1099 set = ptlrpc_prep_set();
1103 rc = OBP(exp->exp_obd, punch)(exp, oinfo, oti, set);
1105 rc = ptlrpc_set_wait(set);
1106 ptlrpc_set_destroy(set);
1110 static inline int obd_punch(struct obd_export *exp, struct obd_info *oinfo,
1111 struct obd_trans_info *oti,
1112 struct ptlrpc_request_set *rqset)
1117 EXP_CHECK_DT_OP(exp, punch);
1118 EXP_COUNTER_INCREMENT(exp, punch);
1120 rc = OBP(exp->exp_obd, punch)(exp, oinfo, oti, rqset);
1124 static inline int obd_brw(int cmd, struct obd_export *exp,
1125 struct obd_info *oinfo, obd_count oa_bufs,
1126 struct brw_page *pg, struct obd_trans_info *oti)
1131 EXP_CHECK_DT_OP(exp, brw);
1132 EXP_COUNTER_INCREMENT(exp, brw);
1134 if (!(cmd & (OBD_BRW_RWMASK | OBD_BRW_CHECK))) {
1135 CERROR("obd_brw: cmd must be OBD_BRW_READ, OBD_BRW_WRITE, "
1136 "or OBD_BRW_CHECK\n");
1140 rc = OBP(exp->exp_obd, brw)(cmd, exp, oinfo, oa_bufs, pg, oti);
1144 static inline int obd_brw_async(int cmd, struct obd_export *exp,
1145 struct obd_info *oinfo, obd_count oa_bufs,
1146 struct brw_page *pg, struct obd_trans_info *oti,
1147 struct ptlrpc_request_set *set)
1152 EXP_CHECK_DT_OP(exp, brw_async);
1153 EXP_COUNTER_INCREMENT(exp, brw_async);
1155 if (!(cmd & OBD_BRW_RWMASK)) {
1156 CERROR("obd_brw: cmd must be OBD_BRW_READ or OBD_BRW_WRITE\n");
1160 rc = OBP(exp->exp_obd, brw_async)(cmd, exp, oinfo, oa_bufs, pg,oti,set);
1164 static inline int obd_brw_rqset(int cmd, struct obd_export *exp,
1165 struct obdo *oa, struct lov_stripe_md *lsm,
1166 obd_count oa_bufs, struct brw_page *pg,
1167 struct obd_trans_info *oti,
1168 struct obd_capa *ocapa)
1170 struct ptlrpc_request_set *set = NULL;
1171 struct obd_info oinfo = { { { 0 } } };
1175 set = ptlrpc_prep_set();
1181 oinfo.oi_capa = ocapa;
1182 rc = obd_brw_async(cmd, exp, &oinfo, oa_bufs, pg, oti, set);
1184 rc = ptlrpc_set_wait(set);
1186 CERROR("error from callback: rc = %d\n", rc);
1188 CDEBUG(rc == -ENOSPC ? D_INODE : D_ERROR,
1189 "error from obd_brw_async: rc = %d\n", rc);
1191 ptlrpc_set_destroy(set);
1195 static inline int obd_prep_async_page(struct obd_export *exp,
1196 struct lov_stripe_md *lsm,
1197 struct lov_oinfo *loi,
1198 cfs_page_t *page, obd_off offset,
1199 struct obd_async_page_ops *ops,
1200 void *data, void **res, int nocache,
1201 struct lustre_handle *lockh)
1206 EXP_CHECK_DT_OP(exp, prep_async_page);
1207 EXP_COUNTER_INCREMENT(exp, prep_async_page);
1209 ret = OBP(exp->exp_obd, prep_async_page)(exp, lsm, loi, page, offset,
1210 ops, data, res, nocache,
1216 * Checks if requested extent lock is compatible with a lock under the page.
1218 * Checks if the lock under \a page is compatible with a read or write lock
1219 * (specified by \a rw) for an extent [\a start , \a end].
1221 * \param exp obd export (lov or osc)
1222 * \param lsm striping information for the file
1223 * \param res async_page placeholder
1224 * \param rw OBD_BRW_READ if requested for reading,
1225 * OBD_BRW_WRITE if requested for writing
1226 * \param start start of the requested extent
1227 * \param end end of the requested extent
1228 * \param cookie transparent parameter for passing locking context
1230 * \post result == 1, *cookie == context, appropriate lock is referenced or
1232 * \retval 1 owned lock is reused for the request
1233 * \retval 0 no lock reused for the request
1234 * \retval -ENOTSUPP reget_short_lock is not exported at this layer
1236 * \see obd_release_short_lock
1238 static inline int obd_reget_short_lock(struct obd_export *exp,
1239 struct lov_stripe_md *lsm,
1241 obd_off start, obd_off end,
1246 EXP_CHECK_DT_OP(exp, reget_short_lock);
1247 EXP_COUNTER_INCREMENT(exp, reget_short_lock);
1249 RETURN(OBP(exp->exp_obd, reget_short_lock)(exp, lsm, res, rw,
1250 start, end, cookie));
1255 * Releases a reference to a lock taken in a "fast" way.
1257 * Releases a read or write (specified by \a rw) lock
1258 * referenced by \a cookie.
1260 * \param exp obd export (lov or osc)
1261 * \param lsm striping information for the file
1262 * \param end end of the locked extent
1263 * \param rw OBD_BRW_READ if requested for reading,
1264 * OBD_BRW_WRITE if requested for writing
1265 * \param cookie transparent parameter for passing locking context
1267 * \post appropriate lock is dereferenced
1269 * \see obd_reget_short_lock
1271 static inline int obd_release_short_lock(struct obd_export *exp,
1272 struct lov_stripe_md *lsm, obd_off end,
1273 void *cookie, int rw)
1277 EXP_CHECK_DT_OP(exp, release_short_lock);
1278 EXP_COUNTER_INCREMENT(exp, release_short_lock);
1280 RETURN(OBP(exp->exp_obd, release_short_lock)(exp, lsm, end,
1284 static inline int obd_queue_async_io(struct obd_export *exp,
1285 struct lov_stripe_md *lsm,
1286 struct lov_oinfo *loi, void *cookie,
1287 int cmd, obd_off off, int count,
1288 obd_flag brw_flags, obd_flag async_flags)
1293 EXP_CHECK_DT_OP(exp, queue_async_io);
1294 EXP_COUNTER_INCREMENT(exp, queue_async_io);
1295 LASSERT(cmd & OBD_BRW_RWMASK);
1297 rc = OBP(exp->exp_obd, queue_async_io)(exp, lsm, loi, cookie, cmd, off,
1298 count, brw_flags, async_flags);
1302 static inline int obd_set_async_flags(struct obd_export *exp,
1303 struct lov_stripe_md *lsm,
1304 struct lov_oinfo *loi, void *cookie,
1305 obd_flag async_flags)
1310 EXP_CHECK_DT_OP(exp, set_async_flags);
1311 EXP_COUNTER_INCREMENT(exp, set_async_flags);
1313 rc = OBP(exp->exp_obd, set_async_flags)(exp, lsm, loi, cookie,
1318 static inline int obd_queue_group_io(struct obd_export *exp,
1319 struct lov_stripe_md *lsm,
1320 struct lov_oinfo *loi,
1321 struct obd_io_group *oig,
1322 void *cookie, int cmd, obd_off off,
1323 int count, obd_flag brw_flags,
1324 obd_flag async_flags)
1329 EXP_CHECK_DT_OP(exp, queue_group_io);
1330 EXP_COUNTER_INCREMENT(exp, queue_group_io);
1331 LASSERT(cmd & OBD_BRW_RWMASK);
1333 rc = OBP(exp->exp_obd, queue_group_io)(exp, lsm, loi, oig, cookie,
1334 cmd, off, count, brw_flags,
1339 static inline int obd_trigger_group_io(struct obd_export *exp,
1340 struct lov_stripe_md *lsm,
1341 struct lov_oinfo *loi,
1342 struct obd_io_group *oig)
1347 EXP_CHECK_DT_OP(exp, trigger_group_io);
1348 EXP_COUNTER_INCREMENT(exp, trigger_group_io);
1350 rc = OBP(exp->exp_obd, trigger_group_io)(exp, lsm, loi, oig);
1354 static inline int obd_teardown_async_page(struct obd_export *exp,
1355 struct lov_stripe_md *lsm,
1356 struct lov_oinfo *loi, void *cookie)
1361 EXP_CHECK_DT_OP(exp, teardown_async_page);
1362 EXP_COUNTER_INCREMENT(exp, teardown_async_page);
1364 rc = OBP(exp->exp_obd, teardown_async_page)(exp, lsm, loi, cookie);
1368 static inline int obd_preprw(int cmd, struct obd_export *exp, struct obdo *oa,
1369 int objcount, struct obd_ioobj *obj,
1370 int niocount, struct niobuf_remote *remote,
1371 struct niobuf_local *local,
1372 struct obd_trans_info *oti,
1373 struct lustre_capa *capa)
1378 EXP_CHECK_DT_OP(exp, preprw);
1379 EXP_COUNTER_INCREMENT(exp, preprw);
1381 rc = OBP(exp->exp_obd, preprw)(cmd, exp, oa, objcount, obj, niocount,
1382 remote, local, oti, capa);
1386 static inline int obd_commitrw(int cmd, struct obd_export *exp, struct obdo *oa,
1387 int objcount, struct obd_ioobj *obj,
1388 int niocount, struct niobuf_local *local,
1389 struct obd_trans_info *oti, int rc)
1393 EXP_CHECK_DT_OP(exp, commitrw);
1394 EXP_COUNTER_INCREMENT(exp, commitrw);
1396 rc = OBP(exp->exp_obd, commitrw)(cmd, exp, oa, objcount, obj, niocount,
1401 static inline int obd_merge_lvb(struct obd_export *exp,
1402 struct lov_stripe_md *lsm,
1403 struct ost_lvb *lvb, int kms_only)
1408 EXP_CHECK_DT_OP(exp, merge_lvb);
1409 EXP_COUNTER_INCREMENT(exp, merge_lvb);
1411 rc = OBP(exp->exp_obd, merge_lvb)(exp, lsm, lvb, kms_only);
1415 static inline int obd_adjust_kms(struct obd_export *exp,
1416 struct lov_stripe_md *lsm, obd_off size,
1422 EXP_CHECK_DT_OP(exp, adjust_kms);
1423 EXP_COUNTER_INCREMENT(exp, adjust_kms);
1425 rc = OBP(exp->exp_obd, adjust_kms)(exp, lsm, size, shrink);
1429 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1430 int len, void *karg, void *uarg)
1435 EXP_CHECK_DT_OP(exp, iocontrol);
1436 EXP_COUNTER_INCREMENT(exp, iocontrol);
1438 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1442 static inline int obd_enqueue_rqset(struct obd_export *exp,
1443 struct obd_info *oinfo,
1444 struct ldlm_enqueue_info *einfo)
1446 struct ptlrpc_request_set *set = NULL;
1450 EXP_CHECK_DT_OP(exp, enqueue);
1451 EXP_COUNTER_INCREMENT(exp, enqueue);
1453 set = ptlrpc_prep_set();
1457 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1459 rc = ptlrpc_set_wait(set);
1460 ptlrpc_set_destroy(set);
1464 static inline int obd_enqueue(struct obd_export *exp,
1465 struct obd_info *oinfo,
1466 struct ldlm_enqueue_info *einfo,
1467 struct ptlrpc_request_set *set)
1472 EXP_CHECK_DT_OP(exp, enqueue);
1473 EXP_COUNTER_INCREMENT(exp, enqueue);
1475 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1479 static inline int obd_match(struct obd_export *exp, struct lov_stripe_md *ea,
1480 __u32 type, ldlm_policy_data_t *policy, __u32 mode,
1481 int *flags, void *data, struct lustre_handle *lockh)
1486 EXP_CHECK_DT_OP(exp, match);
1487 EXP_COUNTER_INCREMENT(exp, match);
1489 rc = OBP(exp->exp_obd, match)(exp, ea, type, policy, mode, flags, data,
1494 static inline int obd_change_cbdata(struct obd_export *exp,
1495 struct lov_stripe_md *lsm,
1496 ldlm_iterator_t it, void *data)
1501 EXP_CHECK_DT_OP(exp, change_cbdata);
1502 EXP_COUNTER_INCREMENT(exp, change_cbdata);
1504 rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data);
1508 static inline int obd_cancel(struct obd_export *exp,
1509 struct lov_stripe_md *ea, __u32 mode,
1510 struct lustre_handle *lockh)
1515 EXP_CHECK_DT_OP(exp, cancel);
1516 EXP_COUNTER_INCREMENT(exp, cancel);
1518 rc = OBP(exp->exp_obd, cancel)(exp, ea, mode, lockh);
1522 static inline int obd_cancel_unused(struct obd_export *exp,
1523 struct lov_stripe_md *ea,
1524 int flags, void *opaque)
1529 EXP_CHECK_DT_OP(exp, cancel_unused);
1530 EXP_COUNTER_INCREMENT(exp, cancel_unused);
1532 rc = OBP(exp->exp_obd, cancel_unused)(exp, ea, flags, opaque);
1536 static inline int obd_join_lru(struct obd_export *exp,
1537 struct lov_stripe_md *ea, int join)
1542 EXP_CHECK_DT_OP(exp, join_lru);
1543 EXP_COUNTER_INCREMENT(exp, join_lru);
1545 rc = OBP(exp->exp_obd, join_lru)(exp, ea, join);
1549 static inline int obd_pin(struct obd_export *exp, const struct lu_fid *fid,
1550 struct obd_capa *oc, struct obd_client_handle *handle,
1556 EXP_CHECK_DT_OP(exp, pin);
1557 EXP_COUNTER_INCREMENT(exp, pin);
1559 rc = OBP(exp->exp_obd, pin)(exp, fid, oc, handle, flag);
1563 static inline int obd_unpin(struct obd_export *exp,
1564 struct obd_client_handle *handle, int flag)
1569 EXP_CHECK_DT_OP(exp, unpin);
1570 EXP_COUNTER_INCREMENT(exp, unpin);
1572 rc = OBP(exp->exp_obd, unpin)(exp, handle, flag);
1577 static inline void obd_import_event(struct obd_device *obd,
1578 struct obd_import *imp,
1579 enum obd_import_event event)
1583 CERROR("NULL device\n");
1587 if (obd->obd_set_up && OBP(obd, import_event)) {
1588 OBD_COUNTER_INCREMENT(obd, import_event);
1589 OBP(obd, import_event)(obd, imp, event);
1594 static inline int obd_llog_connect(struct obd_export *exp,
1595 struct llogd_conn_body *body)
1600 OBD_CHECK_DT_OP(exp->exp_obd, llog_connect, 0);
1601 EXP_COUNTER_INCREMENT(exp, llog_connect);
1603 rc = OBP(exp->exp_obd, llog_connect)(exp, body);
1608 static inline int obd_notify(struct obd_device *obd,
1609 struct obd_device *watched,
1610 enum obd_notify_event ev,
1617 /* the check for async_recov is a complete hack - I'm hereby
1618 overloading the meaning to also mean "this was called from
1619 mds_postsetup". I know that my mds is able to handle notifies
1620 by this point, and it needs to get them to execute mds_postrecov. */
1621 if (!obd->obd_set_up && !obd->obd_async_recov) {
1622 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1626 if (!OBP(obd, notify)) {
1627 CERROR("obd %s has no notify handler\n", obd->obd_name);
1631 OBD_COUNTER_INCREMENT(obd, notify);
1632 rc = OBP(obd, notify)(obd, watched, ev, data);
1636 static inline int obd_notify_observer(struct obd_device *observer,
1637 struct obd_device *observed,
1638 enum obd_notify_event ev,
1644 struct obd_notify_upcall *onu;
1646 if (observer->obd_observer)
1647 rc1 = obd_notify(observer->obd_observer, observed, ev, data);
1651 * Also, call non-obd listener, if any
1653 onu = &observer->obd_upcall;
1654 if (onu->onu_upcall != NULL)
1655 rc2 = onu->onu_upcall(observer, observed, ev, onu->onu_owner);
1659 return rc1 ? rc1 : rc2;
1662 static inline int obd_quotacheck(struct obd_export *exp,
1663 struct obd_quotactl *oqctl)
1668 EXP_CHECK_DT_OP(exp, quotacheck);
1669 EXP_COUNTER_INCREMENT(exp, quotacheck);
1671 rc = OBP(exp->exp_obd, quotacheck)(exp, oqctl);
1675 static inline int obd_quotactl(struct obd_export *exp,
1676 struct obd_quotactl *oqctl)
1681 EXP_CHECK_DT_OP(exp, quotactl);
1682 EXP_COUNTER_INCREMENT(exp, quotactl);
1684 rc = OBP(exp->exp_obd, quotactl)(exp, oqctl);
1688 static inline int obd_health_check(struct obd_device *obd)
1690 /* returns: 0 on healthy
1691 * >0 on unhealthy + reason code/flag
1692 * however the only suppored reason == 1 right now
1693 * We'll need to define some better reasons
1694 * or flags in the future.
1700 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1701 if (obd == NULL || !OBT(obd)) {
1702 CERROR("cleaned up obd\n");
1703 RETURN(-EOPNOTSUPP);
1705 if (!obd->obd_set_up || obd->obd_stopping)
1707 if (!OBP(obd, health_check))
1710 rc = OBP(obd, health_check)(obd);
1714 static inline int obd_register_observer(struct obd_device *obd,
1715 struct obd_device *observer)
1719 if (obd->obd_observer && observer)
1721 obd->obd_observer = observer;
1725 static inline int obd_register_page_removal_cb(struct obd_export *exp,
1726 obd_page_removal_cb_t cb,
1727 obd_pin_extent_cb pin_cb)
1732 OBD_CHECK_DT_OP(exp->exp_obd, register_page_removal_cb, 0);
1733 OBD_COUNTER_INCREMENT(exp->exp_obd, register_page_removal_cb);
1735 rc = OBP(exp->exp_obd, register_page_removal_cb)(exp, cb, pin_cb);
1739 static inline int obd_unregister_page_removal_cb(struct obd_export *exp,
1740 obd_page_removal_cb_t cb)
1745 OBD_CHECK_DT_OP(exp->exp_obd, unregister_page_removal_cb, 0);
1746 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_page_removal_cb);
1748 rc = OBP(exp->exp_obd, unregister_page_removal_cb)(exp, cb);
1752 static inline int obd_register_lock_cancel_cb(struct obd_export *exp,
1753 obd_lock_cancel_cb cb)
1758 OBD_CHECK_DT_OP(exp->exp_obd, register_lock_cancel_cb, 0);
1759 OBD_COUNTER_INCREMENT(exp->exp_obd, register_lock_cancel_cb);
1761 rc = OBP(exp->exp_obd, register_lock_cancel_cb)(exp, cb);
1765 static inline int obd_unregister_lock_cancel_cb(struct obd_export *exp,
1766 obd_lock_cancel_cb cb)
1771 OBD_CHECK_DT_OP(exp->exp_obd, unregister_lock_cancel_cb, 0);
1772 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_lock_cancel_cb);
1774 rc = OBP(exp->exp_obd, unregister_lock_cancel_cb)(exp, cb);
1778 /* metadata helpers */
1779 static inline int md_getstatus(struct obd_export *exp,
1780 struct lu_fid *fid, struct obd_capa **pc)
1785 EXP_CHECK_MD_OP(exp, getstatus);
1786 EXP_MD_COUNTER_INCREMENT(exp, getstatus);
1787 rc = MDP(exp->exp_obd, getstatus)(exp, fid, pc);
1791 static inline int md_getattr(struct obd_export *exp, const struct lu_fid *fid,
1792 struct obd_capa *oc, obd_valid valid, int ea_size,
1793 struct ptlrpc_request **request)
1797 EXP_CHECK_MD_OP(exp, getattr);
1798 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1799 rc = MDP(exp->exp_obd, getattr)(exp, fid, oc, valid,
1804 static inline int md_change_cbdata(struct obd_export *exp,
1805 const struct lu_fid *fid,
1806 ldlm_iterator_t it, void *data)
1810 EXP_CHECK_MD_OP(exp, change_cbdata);
1811 EXP_MD_COUNTER_INCREMENT(exp, change_cbdata);
1812 rc = MDP(exp->exp_obd, change_cbdata)(exp, fid, it, data);
1816 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1817 struct md_open_data *mod,
1818 struct ptlrpc_request **request)
1822 EXP_CHECK_MD_OP(exp, close);
1823 EXP_MD_COUNTER_INCREMENT(exp, close);
1824 rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
1828 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1829 const void *data, int datalen, int mode, __u32 uid,
1830 __u32 gid, __u32 cap_effective, __u64 rdev,
1831 struct ptlrpc_request **request)
1835 EXP_CHECK_MD_OP(exp, create);
1836 EXP_MD_COUNTER_INCREMENT(exp, create);
1837 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1838 uid, gid, cap_effective, rdev, request);
1842 static inline int md_done_writing(struct obd_export *exp,
1843 struct md_op_data *op_data,
1844 struct md_open_data *mod)
1848 EXP_CHECK_MD_OP(exp, done_writing);
1849 EXP_MD_COUNTER_INCREMENT(exp, done_writing);
1850 rc = MDP(exp->exp_obd, done_writing)(exp, op_data, mod);
1854 static inline int md_enqueue(struct obd_export *exp,
1855 struct ldlm_enqueue_info *einfo,
1856 struct lookup_intent *it,
1857 struct md_op_data *op_data,
1858 struct lustre_handle *lockh,
1859 void *lmm, int lmmsize,
1860 int extra_lock_flags)
1864 EXP_CHECK_MD_OP(exp, enqueue);
1865 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1866 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, it, op_data, lockh,
1867 lmm, lmmsize, extra_lock_flags);
1871 static inline int md_getattr_name(struct obd_export *exp,
1872 const struct lu_fid *fid, struct obd_capa *oc,
1873 const char *name, int namelen,
1874 obd_valid valid, int ea_size, __u32 suppgid,
1875 struct ptlrpc_request **request)
1879 EXP_CHECK_MD_OP(exp, getattr_name);
1880 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1881 rc = MDP(exp->exp_obd, getattr_name)(exp, fid, oc, name, namelen,
1882 valid, ea_size, suppgid, request);
1886 static inline int md_intent_lock(struct obd_export *exp,
1887 struct md_op_data *op_data, void *lmm,
1888 int lmmsize, struct lookup_intent *it,
1889 int flags, struct ptlrpc_request **reqp,
1890 ldlm_blocking_callback cb_blocking,
1891 int extra_lock_flags)
1895 EXP_CHECK_MD_OP(exp, intent_lock);
1896 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1897 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, lmm, lmmsize,
1898 it, flags, reqp, cb_blocking,
1903 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1904 struct ptlrpc_request **request)
1908 EXP_CHECK_MD_OP(exp, link);
1909 EXP_MD_COUNTER_INCREMENT(exp, link);
1910 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1914 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1915 const char *old, int oldlen, const char *new,
1916 int newlen, struct ptlrpc_request **request)
1920 EXP_CHECK_MD_OP(exp, rename);
1921 EXP_MD_COUNTER_INCREMENT(exp, rename);
1922 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
1927 static inline int md_is_subdir(struct obd_export *exp,
1928 const struct lu_fid *pfid,
1929 const struct lu_fid *cfid,
1930 struct ptlrpc_request **request)
1934 EXP_CHECK_MD_OP(exp, is_subdir);
1935 EXP_MD_COUNTER_INCREMENT(exp, is_subdir);
1936 rc = MDP(exp->exp_obd, is_subdir)(exp, pfid, cfid, request);
1940 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
1941 void *ea, int ealen, void *ea2, int ea2len,
1942 struct ptlrpc_request **request,
1943 struct md_open_data **mod)
1947 EXP_CHECK_MD_OP(exp, setattr);
1948 EXP_MD_COUNTER_INCREMENT(exp, setattr);
1949 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen,
1950 ea2, ea2len, request, mod);
1954 static inline int md_sync(struct obd_export *exp, const struct lu_fid *fid,
1955 struct obd_capa *oc, struct ptlrpc_request **request)
1959 EXP_CHECK_MD_OP(exp, sync);
1960 EXP_MD_COUNTER_INCREMENT(exp, sync);
1961 rc = MDP(exp->exp_obd, sync)(exp, fid, oc, request);
1965 static inline int md_readpage(struct obd_export *exp, const struct lu_fid *fid,
1966 struct obd_capa *oc, __u64 offset,
1968 struct ptlrpc_request **request)
1972 EXP_CHECK_MD_OP(exp, readpage);
1973 EXP_MD_COUNTER_INCREMENT(exp, readpage);
1974 rc = MDP(exp->exp_obd, readpage)(exp, fid, oc, offset, page, request);
1978 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
1979 struct ptlrpc_request **request)
1983 EXP_CHECK_MD_OP(exp, unlink);
1984 EXP_MD_COUNTER_INCREMENT(exp, unlink);
1985 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
1989 static inline int md_get_lustre_md(struct obd_export *exp,
1990 struct ptlrpc_request *req,
1991 struct obd_export *dt_exp,
1992 struct obd_export *md_exp,
1993 struct lustre_md *md)
1996 EXP_CHECK_MD_OP(exp, get_lustre_md);
1997 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
1998 RETURN(MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md));
2001 static inline int md_free_lustre_md(struct obd_export *exp,
2002 struct lustre_md *md)
2005 EXP_CHECK_MD_OP(exp, free_lustre_md);
2006 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
2007 RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md));
2010 static inline int md_setxattr(struct obd_export *exp,
2011 const struct lu_fid *fid, struct obd_capa *oc,
2012 obd_valid valid, const char *name,
2013 const char *input, int input_size,
2014 int output_size, int flags, __u32 suppgid,
2015 struct ptlrpc_request **request)
2018 EXP_CHECK_MD_OP(exp, setxattr);
2019 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
2020 RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, oc, valid, name, input,
2021 input_size, output_size, flags,
2025 static inline int md_getxattr(struct obd_export *exp,
2026 const struct lu_fid *fid, struct obd_capa *oc,
2027 obd_valid valid, const char *name,
2028 const char *input, int input_size,
2029 int output_size, int flags,
2030 struct ptlrpc_request **request)
2033 EXP_CHECK_MD_OP(exp, getxattr);
2034 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
2035 RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, oc, valid, name, input,
2036 input_size, output_size, flags,
2040 static inline int md_set_open_replay_data(struct obd_export *exp,
2041 struct obd_client_handle *och,
2042 struct ptlrpc_request *open_req)
2045 EXP_CHECK_MD_OP(exp, set_open_replay_data);
2046 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
2047 RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, open_req));
2050 static inline int md_clear_open_replay_data(struct obd_export *exp,
2051 struct obd_client_handle *och)
2054 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
2055 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
2056 RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och));
2059 static inline int md_set_lock_data(struct obd_export *exp,
2060 __u64 *lockh, void *data)
2063 EXP_CHECK_MD_OP(exp, set_lock_data);
2064 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
2065 RETURN(MDP(exp->exp_obd, set_lock_data)(exp, lockh, data));
2068 static inline int md_cancel_unused(struct obd_export *exp,
2069 const struct lu_fid *fid,
2070 ldlm_policy_data_t *policy,
2071 ldlm_mode_t mode, int flags, void *opaque)
2076 EXP_CHECK_MD_OP(exp, cancel_unused);
2077 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
2079 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
2084 static inline ldlm_mode_t md_lock_match(struct obd_export *exp, int flags,
2085 const struct lu_fid *fid,
2087 ldlm_policy_data_t *policy,
2089 struct lustre_handle *lockh)
2092 EXP_CHECK_MD_OP(exp, lock_match);
2093 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
2094 RETURN(MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
2095 policy, mode, lockh));
2098 static inline int md_init_ea_size(struct obd_export *exp, int easize,
2099 int def_asize, int cookiesize)
2102 EXP_CHECK_MD_OP(exp, init_ea_size);
2103 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
2104 RETURN(MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
2108 static inline int md_get_remote_perm(struct obd_export *exp,
2109 const struct lu_fid *fid,
2110 struct obd_capa *oc, __u32 suppgid,
2111 struct ptlrpc_request **request)
2114 EXP_CHECK_MD_OP(exp, get_remote_perm);
2115 EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm);
2116 RETURN(MDP(exp->exp_obd, get_remote_perm)(exp, fid, oc, suppgid,
2120 static inline int md_renew_capa(struct obd_export *exp, struct obd_capa *ocapa,
2125 EXP_CHECK_MD_OP(exp, renew_capa);
2126 EXP_MD_COUNTER_INCREMENT(exp, renew_capa);
2127 rc = MDP(exp->exp_obd, renew_capa)(exp, ocapa, cb);
2131 static inline int md_intent_getattr_async(struct obd_export *exp,
2132 struct md_enqueue_info *minfo,
2133 struct ldlm_enqueue_info *einfo)
2137 EXP_CHECK_MD_OP(exp, intent_getattr_async);
2138 EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
2139 rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo, einfo);
2143 static inline int md_revalidate_lock(struct obd_export *exp,
2144 struct lookup_intent *it,
2149 EXP_CHECK_MD_OP(exp, revalidate_lock);
2150 EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
2151 rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid);
2156 /* OBD Metadata Support */
2158 extern int obd_init_caches(void);
2159 extern void obd_cleanup_caches(void);
2161 /* support routines */
2162 extern cfs_mem_cache_t *obdo_cachep;
2164 #define OBDO_ALLOC(ptr) \
2166 OBD_SLAB_ALLOC_PTR((ptr), obdo_cachep); \
2169 #define OBDO_FREE(ptr) \
2171 OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
2175 static inline void obdo2fid(struct obdo *oa, struct lu_fid *fid)
2177 /* something here */
2180 static inline void fid2obdo(struct lu_fid *fid, struct obdo *oa)
2182 /* something here */
2185 /* I'm as embarrassed about this as you are.
2187 * <shaver> // XXX do not look into _superhack with remaining eye
2188 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
2189 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
2192 extern void obd_sysctl_init (void);
2193 extern void obd_sysctl_clean (void);
2196 typedef __u8 class_uuid_t[16];
2197 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
2200 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
2201 int class_add_uuid(const char *uuid, __u64 nid);
2202 int class_del_uuid (const char *uuid);
2203 void class_init_uuidlist(void);
2204 void class_exit_uuidlist(void);
2207 int mea_name2idx(struct lmv_stripe_md *mea, const char *name, int namelen);
2208 int raw_name2idx(int hashtype, int count, const char *name, int namelen);
2211 void ll_generate_random_uuid(class_uuid_t uuid_out);
2213 #endif /* __LINUX_OBD_CLASS_H */