4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2012, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
40 # include <liblustre.h>
43 #include <obd_support.h>
44 #include <lustre_import.h>
45 #include <lustre_net.h>
47 #include <lustre_lib.h>
48 #include <lustre/lustre_idl.h>
49 #include <lprocfs_status.h>
51 #if defined(__linux__)
52 #include <linux/obd_class.h>
53 #elif defined(__APPLE__)
54 #include <darwin/obd_class.h>
55 #elif defined(__WINNT__)
56 #include <winnt/obd_class.h>
58 #error Unsupported operating system.
61 #define OBD_STATFS_NODELAY 0x0001 /* requests should be send without delay
62 * and resends for avoid deadlocks */
63 #define OBD_STATFS_FROM_CACHE 0x0002 /* the statfs callback should not update
65 #define OBD_STATFS_PTLRPCD 0x0004 /* requests will be sent via ptlrpcd
66 * instead of a specific set. This
67 * means that we cannot rely on the set
68 * interpret routine to be called.
69 * lov_statfs_fini() must thus be called
70 * by the request interpret routine */
71 #define OBD_STATFS_FOR_MDT0 0x0008 /* The statfs is only for retrieving
72 * information from MDT0. */
73 #define OBD_FL_PUNCH 0x00000001 /* To indicate it is punch operation */
75 /* OBD Device Declarations */
76 extern struct obd_device *obd_devs[MAX_OBD_DEVICES];
77 extern rwlock_t obd_dev_lock;
79 /* OBD Operations Declarations */
80 extern struct obd_device *class_conn2obd(struct lustre_handle *);
81 extern struct obd_device *class_exp2obd(struct obd_export *);
82 extern int class_handle_ioctl(unsigned int cmd, unsigned long arg);
83 extern int lustre_get_jobid(char *jobid);
85 struct lu_device_type;
88 struct obd_export *class_conn2export(struct lustre_handle *);
89 int class_register_type(struct obd_ops *, struct md_ops *,
90 struct lprocfs_vars *, const char *nm,
91 struct lu_device_type *ldt);
92 int class_unregister_type(const char *nm);
94 struct obd_device *class_newdev(const char *type_name, const char *name);
95 void class_release_dev(struct obd_device *obd);
97 int class_name2dev(const char *name);
98 struct obd_device *class_name2obd(const char *name);
99 int class_uuid2dev(struct obd_uuid *uuid);
100 struct obd_device *class_uuid2obd(struct obd_uuid *uuid);
101 void class_obd_list(void);
102 struct obd_device * class_find_client_obd(struct obd_uuid *tgt_uuid,
103 const char * typ_name,
104 struct obd_uuid *grp_uuid);
105 struct obd_device * class_devices_in_group(struct obd_uuid *grp_uuid,
107 struct obd_device * class_num2obd(int num);
108 int get_devices_count(void);
110 int class_notify_sptlrpc_conf(const char *fsname, int namelen);
112 char *obd_export_nid2str(struct obd_export *exp);
114 int obd_export_evict_by_nid(struct obd_device *obd, const char *nid);
115 int obd_export_evict_by_uuid(struct obd_device *obd, const char *uuid);
116 int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep);
118 int obd_zombie_impexp_init(void);
119 void obd_zombie_impexp_stop(void);
120 void obd_zombie_impexp_cull(void);
121 void obd_zombie_barrier(void);
122 void obd_exports_barrier(struct obd_device *obd);
123 int kuc_len(int payload_len);
124 struct kuc_hdr * kuc_ptr(void *p);
125 int kuc_ispayload(void *p);
126 void *kuc_alloc(int payload_len, int transport, int type);
127 void kuc_free(void *p, int payload_len);
131 typedef int (*llog_cb_t)(const struct lu_env *, struct llog_handle *,
132 struct llog_rec_hdr *, void *);
134 struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg,
135 const char *new_name);
136 int class_process_config(struct lustre_cfg *lcfg);
137 int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
138 struct lustre_cfg *lcfg, void *data);
139 int class_attach(struct lustre_cfg *lcfg);
140 int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
141 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg);
142 int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg);
143 struct obd_device *class_incref(struct obd_device *obd,
144 const char *scope, const void *source);
145 void class_decref(struct obd_device *obd,
146 const char *scope, const void *source);
147 void dump_exports(struct obd_device *obd, int locks);
148 int class_config_llog_handler(const struct lu_env *env,
149 struct llog_handle *handle,
150 struct llog_rec_hdr *rec, void *data);
151 int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg);
152 int class_add_uuid(const char *uuid, __u64 nid);
156 extern void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars);
158 static inline void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars)
160 memset(lvars, 0, sizeof(*lvars));
164 #define CFG_F_START 0x01 /* Set when we start updating from a log */
165 #define CFG_F_MARKER 0x02 /* We are within a maker */
166 #define CFG_F_SKIP 0x04 /* We should ignore this cfg command */
167 #define CFG_F_COMPAT146 0x08 /* Allow old-style logs */
168 #define CFG_F_EXCLUDE 0x10 /* OST exclusion list */
170 /* Passed as data param to class_config_parse_llog */
171 struct config_llog_instance {
174 struct super_block *cfg_sb;
175 struct obd_uuid cfg_uuid;
176 llog_cb_t cfg_callback;
177 int cfg_last_idx; /* for partial llog processing */
180 int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
181 char *name, struct config_llog_instance *cfg);
182 int class_config_dump_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
183 char *name, struct config_llog_instance *cfg);
187 CONFIG_T_SPTLRPC = 1,
188 CONFIG_T_RECOVER = 2,
192 /* list of active configuration logs */
193 struct config_llog_data {
194 struct ldlm_res_id cld_resid;
195 struct config_llog_instance cld_cfg;
196 cfs_list_t cld_list_chain;
197 cfs_atomic_t cld_refcount;
198 struct config_llog_data *cld_sptlrpc;/* depended sptlrpc log */
199 struct config_llog_data *cld_recover; /* imperative recover log */
200 struct obd_export *cld_mgcexp;
201 struct mutex cld_lock;
203 unsigned int cld_stopping:1, /* we were told to stop
205 cld_lostlock:1; /* lock not requeued */
209 struct lustre_profile {
216 struct lustre_profile *class_get_profile(const char * prof);
217 void class_del_profile(const char *prof);
218 void class_del_profiles(void);
220 #if LUSTRE_TRACKS_LOCK_EXP_REFS
222 void __class_export_add_lock_ref(struct obd_export *, struct ldlm_lock *);
223 void __class_export_del_lock_ref(struct obd_export *, struct ldlm_lock *);
224 extern void (*class_export_dump_hook)(struct obd_export *);
228 #define __class_export_add_lock_ref(exp, lock) do {} while(0)
229 #define __class_export_del_lock_ref(exp, lock) do {} while(0)
233 #define class_export_rpc_get(exp) \
235 cfs_atomic_inc(&(exp)->exp_rpc_count); \
236 CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \
237 (exp), cfs_atomic_read(&(exp)->exp_rpc_count)); \
238 class_export_get(exp); \
241 #define class_export_rpc_put(exp) \
243 LASSERT_ATOMIC_POS(&exp->exp_rpc_count); \
244 cfs_atomic_dec(&(exp)->exp_rpc_count); \
245 CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \
246 (exp), cfs_atomic_read(&(exp)->exp_rpc_count)); \
247 class_export_put(exp); \
250 #define class_export_lock_get(exp, lock) \
252 cfs_atomic_inc(&(exp)->exp_locks_count); \
253 __class_export_add_lock_ref(exp, lock); \
254 CDEBUG(D_INFO, "lock GETting export %p : new locks_count %d\n", \
255 (exp), cfs_atomic_read(&(exp)->exp_locks_count)); \
256 class_export_get(exp); \
259 #define class_export_lock_put(exp, lock) \
261 LASSERT_ATOMIC_POS(&exp->exp_locks_count); \
262 cfs_atomic_dec(&(exp)->exp_locks_count); \
263 __class_export_del_lock_ref(exp, lock); \
264 CDEBUG(D_INFO, "lock PUTting export %p : new locks_count %d\n", \
265 (exp), cfs_atomic_read(&(exp)->exp_locks_count)); \
266 class_export_put(exp); \
269 #define class_export_cb_get(exp) \
271 cfs_atomic_inc(&(exp)->exp_cb_count); \
272 CDEBUG(D_INFO, "callback GETting export %p : new cb_count %d\n",\
273 (exp), cfs_atomic_read(&(exp)->exp_cb_count)); \
274 class_export_get(exp); \
277 #define class_export_cb_put(exp) \
279 LASSERT_ATOMIC_POS(&exp->exp_cb_count); \
280 cfs_atomic_dec(&(exp)->exp_cb_count); \
281 CDEBUG(D_INFO, "callback PUTting export %p : new cb_count %d\n",\
282 (exp), cfs_atomic_read(&(exp)->exp_cb_count)); \
283 class_export_put(exp); \
287 struct obd_export *class_export_get(struct obd_export *exp);
288 void class_export_put(struct obd_export *exp);
289 struct obd_export *class_new_export(struct obd_device *obddev,
290 struct obd_uuid *cluuid);
291 void class_unlink_export(struct obd_export *exp);
293 struct obd_import *class_import_get(struct obd_import *);
294 void class_import_put(struct obd_import *);
295 struct obd_import *class_new_import(struct obd_device *obd);
296 void class_destroy_import(struct obd_import *exp);
298 struct obd_type *class_search_type(const char *name);
299 struct obd_type *class_get_type(const char *name);
300 void class_put_type(struct obd_type *type);
301 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
302 struct obd_uuid *cluuid);
303 int class_disconnect(struct obd_export *exp);
304 void class_fail_export(struct obd_export *exp);
305 int class_connected_export(struct obd_export *exp);
306 void class_disconnect_exports(struct obd_device *obddev);
307 int class_manual_cleanup(struct obd_device *obd);
308 void class_disconnect_stale_exports(struct obd_device *,
309 int (*test_export)(struct obd_export *));
310 static inline enum obd_option exp_flags_from_obd(struct obd_device *obd)
312 return ((obd->obd_fail ? OBD_OPT_FAILOVER : 0) |
313 (obd->obd_force ? OBD_OPT_FORCE : 0) |
314 (obd->obd_abort_recovery ? OBD_OPT_ABORT_RECOV : 0) |
318 #ifdef HAVE_SERVER_SUPPORT
319 static inline struct lu_target *class_exp2tgt(struct obd_export *exp)
321 LASSERT(exp->exp_obd);
322 return exp->exp_obd->u.obt.obt_lut;
325 static inline struct lr_server_data *class_server_data(struct obd_device *obd)
327 LASSERT(obd->u.obt.obt_lut);
328 return &obd->u.obt.obt_lut->lut_lsd;
332 void obdo_cpy_md(struct obdo *dst, struct obdo *src, obd_flag valid);
333 void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj);
334 void obdo_from_iattr(struct obdo *oa, struct iattr *attr,
335 unsigned int ia_valid);
336 void iattr_from_obdo(struct iattr *attr, struct obdo *oa, obd_flag valid);
337 void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, obd_flag valid);
338 void obdo_from_md(struct obdo *oa, struct md_op_data *op_data,
341 void obdo_cpu_to_le(struct obdo *dobdo, struct obdo *sobdo);
342 void obdo_le_to_cpu(struct obdo *dobdo, struct obdo *sobdo);
344 #define OBT(dev) (dev)->obd_type
345 #define OBP(dev, op) (dev)->obd_type->typ_dt_ops->o_ ## op
346 #define MDP(dev, op) (dev)->obd_type->typ_md_ops->m_ ## op
347 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
349 /* Ensure obd_setup: used for cleanup which must be called
350 while obd is stopping */
351 #define OBD_CHECK_DEV(obd) \
354 CERROR("NULL device\n"); \
359 /* ensure obd_setup and !obd_stopping */
360 #define OBD_CHECK_DEV_ACTIVE(obd) \
362 OBD_CHECK_DEV(obd); \
363 if (!(obd)->obd_set_up || (obd)->obd_stopping) { \
364 CERROR("Device %d not setup\n", \
372 #define OBD_COUNTER_OFFSET(op) \
373 ((offsetof(struct obd_ops, o_ ## op) - \
374 offsetof(struct obd_ops, o_iocontrol)) \
375 / sizeof(((struct obd_ops *)(0))->o_iocontrol))
377 #define OBD_COUNTER_INCREMENT(obdx, op) \
378 if ((obdx)->obd_stats != NULL) { \
379 unsigned int coffset; \
380 coffset = (unsigned int)((obdx)->obd_cntr_base) + \
381 OBD_COUNTER_OFFSET(op); \
382 LASSERT(coffset < (obdx)->obd_stats->ls_num); \
383 lprocfs_counter_incr((obdx)->obd_stats, coffset); \
386 #define EXP_COUNTER_INCREMENT(export, op) \
387 if ((export)->exp_obd->obd_stats != NULL) { \
388 unsigned int coffset; \
389 coffset = (unsigned int)((export)->exp_obd->obd_cntr_base) + \
390 OBD_COUNTER_OFFSET(op); \
391 LASSERT(coffset < (export)->exp_obd->obd_stats->ls_num); \
392 lprocfs_counter_incr((export)->exp_obd->obd_stats, coffset); \
393 if ((export)->exp_nid_stats != NULL && \
394 (export)->exp_nid_stats->nid_stats != NULL) \
395 lprocfs_counter_incr( \
396 (export)->exp_nid_stats->nid_stats, coffset);\
399 #define MD_COUNTER_OFFSET(op) \
400 ((offsetof(struct md_ops, m_ ## op) - \
401 offsetof(struct md_ops, m_getstatus)) \
402 / sizeof(((struct md_ops *)(0))->m_getstatus))
404 #define MD_COUNTER_INCREMENT(obdx, op) \
405 if ((obd)->md_stats != NULL) { \
406 unsigned int coffset; \
407 coffset = (unsigned int)((obdx)->md_cntr_base) + \
408 MD_COUNTER_OFFSET(op); \
409 LASSERT(coffset < (obdx)->md_stats->ls_num); \
410 lprocfs_counter_incr((obdx)->md_stats, coffset); \
413 #define EXP_MD_COUNTER_INCREMENT(export, op) \
414 if ((export)->exp_obd->obd_stats != NULL) { \
415 unsigned int coffset; \
416 coffset = (unsigned int)((export)->exp_obd->md_cntr_base) + \
417 MD_COUNTER_OFFSET(op); \
418 LASSERT(coffset < (export)->exp_obd->md_stats->ls_num); \
419 lprocfs_counter_incr((export)->exp_obd->md_stats, coffset); \
420 if ((export)->exp_md_stats != NULL) \
421 lprocfs_counter_incr( \
422 (export)->exp_md_stats, coffset); \
426 #define OBD_COUNTER_OFFSET(op)
427 #define OBD_COUNTER_INCREMENT(obd, op)
428 #define EXP_COUNTER_INCREMENT(exp, op)
429 #define MD_COUNTER_INCREMENT(obd, op)
430 #define EXP_MD_COUNTER_INCREMENT(exp, op)
433 static inline int lprocfs_nid_ldlm_stats_init(struct nid_stat* tmp)
435 /* Always add in ldlm_stats */
436 tmp->nid_ldlm_stats = lprocfs_alloc_stats(LDLM_LAST_OPC - LDLM_FIRST_OPC
437 ,LPROCFS_STATS_FLAG_NOPERCPU);
438 if (tmp->nid_ldlm_stats == NULL)
441 lprocfs_init_ldlm_stats(tmp->nid_ldlm_stats);
443 return lprocfs_register_stats(tmp->nid_proc, "ldlm_stats",
444 tmp->nid_ldlm_stats);
447 #define OBD_CHECK_MD_OP(obd, op, err) \
449 if (!OBT(obd) || !MDP((obd), op)) { \
451 CERROR("md_" #op ": dev %s/%d no operation\n", \
452 obd->obd_name, obd->obd_minor); \
457 #define EXP_CHECK_MD_OP(exp, op) \
459 if ((exp) == NULL) { \
460 CERROR("obd_" #op ": NULL export\n"); \
463 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
464 CERROR("obd_" #op ": cleaned up obd\n"); \
465 RETURN(-EOPNOTSUPP); \
467 if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
468 CERROR("obd_" #op ": dev %s/%d no operation\n", \
469 (exp)->exp_obd->obd_name, \
470 (exp)->exp_obd->obd_minor); \
471 RETURN(-EOPNOTSUPP); \
476 #define OBD_CHECK_DT_OP(obd, op, err) \
478 if (!OBT(obd) || !OBP((obd), op)) { \
480 CERROR("obd_" #op ": dev %d no operation\n", \
486 #define EXP_CHECK_DT_OP(exp, op) \
488 if ((exp) == NULL) { \
489 CERROR("obd_" #op ": NULL export\n"); \
492 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
493 CERROR("obd_" #op ": cleaned up obd\n"); \
494 RETURN(-EOPNOTSUPP); \
496 if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
497 CERROR("obd_" #op ": dev %d no operation\n", \
498 (exp)->exp_obd->obd_minor); \
499 RETURN(-EOPNOTSUPP); \
503 #define CTXT_CHECK_OP(ctxt, op, err) \
505 if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
507 CERROR("lop_" #op ": dev %d no operation\n", \
508 ctxt->loc_obd->obd_minor); \
513 static inline int class_devno_max(void)
515 return MAX_OBD_DEVICES;
518 static inline int obd_get_info(const struct lu_env *env,
519 struct obd_export *exp, __u32 keylen,
520 void *key, __u32 *vallen, void *val,
521 struct lov_stripe_md *lsm)
526 EXP_CHECK_DT_OP(exp, get_info);
527 EXP_COUNTER_INCREMENT(exp, get_info);
529 rc = OBP(exp->exp_obd, get_info)(env, exp, keylen, key, vallen, val,
534 static inline int obd_set_info_async(const struct lu_env *env,
535 struct obd_export *exp, obd_count keylen,
536 void *key, obd_count vallen, void *val,
537 struct ptlrpc_request_set *set)
542 EXP_CHECK_DT_OP(exp, set_info_async);
543 EXP_COUNTER_INCREMENT(exp, set_info_async);
545 rc = OBP(exp->exp_obd, set_info_async)(env, exp, keylen, key, vallen,
551 * obd-lu integration.
553 * Functionality is being moved into new lu_device-based layering, but some
554 * pieces of configuration process are still based on obd devices.
556 * Specifically, lu_device_type_operations::ldto_device_alloc() methods fully
557 * subsume ->o_setup() methods of obd devices they replace. The same for
558 * lu_device_operations::ldo_process_config() and ->o_process_config(). As a
559 * result, obd_setup() and obd_process_config() branch and call one XOR
562 * Yet neither lu_device_type_operations::ldto_device_fini() nor
563 * lu_device_type_operations::ldto_device_free() fully implement the
564 * functionality of ->o_precleanup() and ->o_cleanup() they override. Hence,
565 * obd_precleanup() and obd_cleanup() call both lu_device and obd operations.
568 #define DECLARE_LU_VARS(ldt, d) \
569 struct lu_device_type *ldt; \
572 static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
575 DECLARE_LU_VARS(ldt, d);
578 ldt = obd->obd_type->typ_lu;
580 struct lu_context session_ctx;
582 lu_context_init(&session_ctx, LCT_SESSION);
583 session_ctx.lc_thread = NULL;
584 lu_context_enter(&session_ctx);
586 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
588 env.le_ses = &session_ctx;
589 d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
598 lu_context_exit(&session_ctx);
599 lu_context_fini(&session_ctx);
602 OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
603 OBD_COUNTER_INCREMENT(obd, setup);
604 rc = OBP(obd, setup)(obd, cfg);
609 static inline int obd_precleanup(struct obd_device *obd,
610 enum obd_cleanup_stage cleanup_stage)
613 DECLARE_LU_VARS(ldt, d);
617 ldt = obd->obd_type->typ_lu;
619 if (ldt != NULL && d != NULL) {
620 if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
623 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
625 ldt->ldt_ops->ldto_device_fini(&env, d);
630 OBD_CHECK_DT_OP(obd, precleanup, 0);
631 OBD_COUNTER_INCREMENT(obd, precleanup);
633 rc = OBP(obd, precleanup)(obd, cleanup_stage);
637 static inline int obd_cleanup(struct obd_device *obd)
640 DECLARE_LU_VARS(ldt, d);
645 ldt = obd->obd_type->typ_lu;
647 if (ldt != NULL && d != NULL) {
650 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
652 ldt->ldt_ops->ldto_device_free(&env, d);
654 obd->obd_lu_dev = NULL;
657 OBD_CHECK_DT_OP(obd, cleanup, 0);
658 OBD_COUNTER_INCREMENT(obd, cleanup);
660 rc = OBP(obd, cleanup)(obd);
664 static inline void obd_cleanup_client_import(struct obd_device *obd)
668 /* If we set up but never connected, the
669 client import will not have been cleaned. */
670 down_write(&obd->u.cli.cl_sem);
671 if (obd->u.cli.cl_import) {
672 struct obd_import *imp;
673 imp = obd->u.cli.cl_import;
674 CDEBUG(D_CONFIG, "%s: client import never connected\n",
676 ptlrpc_invalidate_import(imp);
677 if (imp->imp_rq_pool) {
678 ptlrpc_free_rq_pool(imp->imp_rq_pool);
679 imp->imp_rq_pool = NULL;
681 client_destroy_import(imp);
682 obd->u.cli.cl_import = NULL;
684 up_write(&obd->u.cli.cl_sem);
690 obd_process_config(struct obd_device *obd, int datalen, void *data)
693 DECLARE_LU_VARS(ldt, d);
698 obd->obd_process_conf = 1;
699 ldt = obd->obd_type->typ_lu;
701 if (ldt != NULL && d != NULL) {
704 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
706 rc = d->ld_ops->ldo_process_config(&env, d, data);
710 OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
711 rc = OBP(obd, process_config)(obd, datalen, data);
713 OBD_COUNTER_INCREMENT(obd, process_config);
714 obd->obd_process_conf = 0;
719 /* Pack an in-memory MD struct for storage on disk.
720 * Returns +ve size of packed MD (0 for free), or -ve error.
722 * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL).
723 * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed.
724 * If @*disk_tgt == NULL, it will be allocated
726 static inline int obd_packmd(struct obd_export *exp,
727 struct lov_mds_md **disk_tgt,
728 struct lov_stripe_md *mem_src)
733 EXP_CHECK_DT_OP(exp, packmd);
734 EXP_COUNTER_INCREMENT(exp, packmd);
736 rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src);
740 static inline int obd_size_diskmd(struct obd_export *exp,
741 struct lov_stripe_md *mem_src)
743 return obd_packmd(exp, NULL, mem_src);
746 /* helper functions */
747 static inline int obd_alloc_diskmd(struct obd_export *exp,
748 struct lov_mds_md **disk_tgt)
751 LASSERT(*disk_tgt == NULL);
752 return obd_packmd(exp, disk_tgt, NULL);
755 static inline int obd_free_diskmd(struct obd_export *exp,
756 struct lov_mds_md **disk_tgt)
761 * LU-2590, for caller's convenience, *disk_tgt could be host
762 * endianness, it needs swab to LE if necessary, while just
763 * lov_mds_md header needs it for figuring out how much memory
766 if ((cpu_to_le32(LOV_MAGIC) != LOV_MAGIC) &&
767 (((*disk_tgt)->lmm_magic == LOV_MAGIC_V1) ||
768 ((*disk_tgt)->lmm_magic == LOV_MAGIC_V3)))
769 lustre_swab_lov_mds_md(*disk_tgt);
770 return obd_packmd(exp, disk_tgt, NULL);
773 /* Unpack an MD struct from disk to in-memory format.
774 * Returns +ve size of unpacked MD (0 for free), or -ve error.
776 * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL).
777 * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed.
778 * If @*mem_tgt == NULL, it will be allocated
780 static inline int obd_unpackmd(struct obd_export *exp,
781 struct lov_stripe_md **mem_tgt,
782 struct lov_mds_md *disk_src,
788 EXP_CHECK_DT_OP(exp, unpackmd);
789 EXP_COUNTER_INCREMENT(exp, unpackmd);
791 rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len);
795 /* helper functions */
796 static inline int obd_alloc_memmd(struct obd_export *exp,
797 struct lov_stripe_md **mem_tgt)
800 LASSERT(*mem_tgt == NULL);
801 return obd_unpackmd(exp, mem_tgt, NULL, 0);
804 static inline int obd_free_memmd(struct obd_export *exp,
805 struct lov_stripe_md **mem_tgt)
811 rc = obd_unpackmd(exp, mem_tgt, NULL, 0);
816 static inline int obd_precreate(struct obd_export *exp)
821 EXP_CHECK_DT_OP(exp, precreate);
822 OBD_COUNTER_INCREMENT(exp->exp_obd, precreate);
824 rc = OBP(exp->exp_obd, precreate)(exp);
828 static inline int obd_create_async(struct obd_export *exp,
829 struct obd_info *oinfo,
830 struct lov_stripe_md **ea,
831 struct obd_trans_info *oti)
836 EXP_CHECK_DT_OP(exp, create_async);
837 EXP_COUNTER_INCREMENT(exp, create_async);
839 rc = OBP(exp->exp_obd, create_async)(exp, oinfo, ea, oti);
843 static inline int obd_create(const struct lu_env *env, struct obd_export *exp,
844 struct obdo *obdo, struct lov_stripe_md **ea,
845 struct obd_trans_info *oti)
850 EXP_CHECK_DT_OP(exp, create);
851 EXP_COUNTER_INCREMENT(exp, create);
853 rc = OBP(exp->exp_obd, create)(env, exp, obdo, ea, oti);
857 static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp,
858 struct obdo *obdo, struct lov_stripe_md *ea,
859 struct obd_trans_info *oti,
860 struct obd_export *md_exp, void *capa)
865 EXP_CHECK_DT_OP(exp, destroy);
866 EXP_COUNTER_INCREMENT(exp, destroy);
868 rc = OBP(exp->exp_obd, destroy)(env, exp, obdo, ea, oti, md_exp, capa);
872 static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp,
873 struct obd_info *oinfo)
878 EXP_CHECK_DT_OP(exp, getattr);
879 EXP_COUNTER_INCREMENT(exp, getattr);
881 rc = OBP(exp->exp_obd, getattr)(env, exp, oinfo);
885 static inline int obd_getattr_async(struct obd_export *exp,
886 struct obd_info *oinfo,
887 struct ptlrpc_request_set *set)
892 EXP_CHECK_DT_OP(exp, getattr_async);
893 EXP_COUNTER_INCREMENT(exp, getattr_async);
895 rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set);
899 static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp,
900 struct obd_info *oinfo,
901 struct obd_trans_info *oti)
906 EXP_CHECK_DT_OP(exp, setattr);
907 EXP_COUNTER_INCREMENT(exp, setattr);
909 rc = OBP(exp->exp_obd, setattr)(env, exp, oinfo, oti);
913 /* This performs all the requests set init/wait/destroy actions. */
914 static inline int obd_setattr_rqset(struct obd_export *exp,
915 struct obd_info *oinfo,
916 struct obd_trans_info *oti)
918 struct ptlrpc_request_set *set = NULL;
922 EXP_CHECK_DT_OP(exp, setattr_async);
923 EXP_COUNTER_INCREMENT(exp, setattr_async);
925 set = ptlrpc_prep_set();
929 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
931 rc = ptlrpc_set_wait(set);
932 ptlrpc_set_destroy(set);
936 /* This adds all the requests into @set if @set != NULL, otherwise
937 all requests are sent asynchronously without waiting for response. */
938 static inline int obd_setattr_async(struct obd_export *exp,
939 struct obd_info *oinfo,
940 struct obd_trans_info *oti,
941 struct ptlrpc_request_set *set)
946 EXP_CHECK_DT_OP(exp, setattr_async);
947 EXP_COUNTER_INCREMENT(exp, setattr_async);
949 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
953 static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
956 struct obd_device *obd = imp->imp_obd;
960 OBD_CHECK_DEV_ACTIVE(obd);
961 OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
962 OBD_COUNTER_INCREMENT(obd, add_conn);
964 rc = OBP(obd, add_conn)(imp, uuid, priority);
968 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
970 struct obd_device *obd = imp->imp_obd;
974 OBD_CHECK_DEV_ACTIVE(obd);
975 OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
976 OBD_COUNTER_INCREMENT(obd, del_conn);
978 rc = OBP(obd, del_conn)(imp, uuid);
982 static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp)
984 struct obd_uuid *uuid;
987 OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL);
988 EXP_COUNTER_INCREMENT(exp, get_uuid);
990 uuid = OBP(exp->exp_obd, get_uuid)(exp);
994 /** Create a new /a exp on device /a obd for the uuid /a cluuid
995 * @param exp New export handle
996 * @param d Connect data, supported flags are set, flags also understood
997 * by obd are returned.
999 static inline int obd_connect(const struct lu_env *env,
1000 struct obd_export **exp,struct obd_device *obd,
1001 struct obd_uuid *cluuid,
1002 struct obd_connect_data *data,
1006 __u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
1010 OBD_CHECK_DEV_ACTIVE(obd);
1011 OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
1012 OBD_COUNTER_INCREMENT(obd, connect);
1014 rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata);
1015 /* check that only subset is granted */
1016 LASSERT(ergo(data != NULL, (data->ocd_connect_flags & ocf) ==
1017 data->ocd_connect_flags));
1021 static inline int obd_reconnect(const struct lu_env *env,
1022 struct obd_export *exp,
1023 struct obd_device *obd,
1024 struct obd_uuid *cluuid,
1025 struct obd_connect_data *d,
1029 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
1034 OBD_CHECK_DEV_ACTIVE(obd);
1035 OBD_CHECK_DT_OP(obd, reconnect, 0);
1036 OBD_COUNTER_INCREMENT(obd, reconnect);
1038 rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
1039 /* check that only subset is granted */
1040 LASSERT(ergo(d != NULL,
1041 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
1045 static inline int obd_disconnect(struct obd_export *exp)
1050 EXP_CHECK_DT_OP(exp, disconnect);
1051 EXP_COUNTER_INCREMENT(exp, disconnect);
1053 rc = OBP(exp->exp_obd, disconnect)(exp);
1057 static inline int obd_fid_init(struct obd_device *obd, struct obd_export *exp,
1058 enum lu_cli_type type)
1063 OBD_CHECK_DT_OP(obd, fid_init, 0);
1064 OBD_COUNTER_INCREMENT(obd, fid_init);
1066 rc = OBP(obd, fid_init)(obd, exp, type);
1070 static inline int obd_fid_fini(struct obd_device *obd)
1075 OBD_CHECK_DT_OP(obd, fid_fini, 0);
1076 OBD_COUNTER_INCREMENT(obd, fid_fini);
1078 rc = OBP(obd, fid_fini)(obd);
1082 static inline int obd_fid_alloc(struct obd_export *exp,
1084 struct md_op_data *op_data)
1089 EXP_CHECK_DT_OP(exp, fid_alloc);
1090 EXP_COUNTER_INCREMENT(exp, fid_alloc);
1092 rc = OBP(exp->exp_obd, fid_alloc)(exp, fid, op_data);
1096 static inline int obd_ping(const struct lu_env *env, struct obd_export *exp)
1101 OBD_CHECK_DT_OP(exp->exp_obd, ping, 0);
1102 EXP_COUNTER_INCREMENT(exp, ping);
1104 rc = OBP(exp->exp_obd, ping)(env, exp);
1108 static inline int obd_pool_new(struct obd_device *obd, char *poolname)
1113 OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP);
1114 OBD_COUNTER_INCREMENT(obd, pool_new);
1116 rc = OBP(obd, pool_new)(obd, poolname);
1120 static inline int obd_pool_del(struct obd_device *obd, char *poolname)
1125 OBD_CHECK_DT_OP(obd, pool_del, -EOPNOTSUPP);
1126 OBD_COUNTER_INCREMENT(obd, pool_del);
1128 rc = OBP(obd, pool_del)(obd, poolname);
1132 static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname)
1137 OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP);
1138 OBD_COUNTER_INCREMENT(obd, pool_add);
1140 rc = OBP(obd, pool_add)(obd, poolname, ostname);
1144 static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname)
1149 OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP);
1150 OBD_COUNTER_INCREMENT(obd, pool_rem);
1152 rc = OBP(obd, pool_rem)(obd, poolname, ostname);
1156 static inline void obd_getref(struct obd_device *obd)
1159 if (OBT(obd) && OBP(obd, getref)) {
1160 OBD_COUNTER_INCREMENT(obd, getref);
1161 OBP(obd, getref)(obd);
1166 static inline void obd_putref(struct obd_device *obd)
1169 if (OBT(obd) && OBP(obd, putref)) {
1170 OBD_COUNTER_INCREMENT(obd, putref);
1171 OBP(obd, putref)(obd);
1176 static inline int obd_init_export(struct obd_export *exp)
1181 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1182 OBP((exp)->exp_obd, init_export))
1183 rc = OBP(exp->exp_obd, init_export)(exp);
1187 static inline int obd_destroy_export(struct obd_export *exp)
1190 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1191 OBP((exp)->exp_obd, destroy_export))
1192 OBP(exp->exp_obd, destroy_export)(exp);
1196 static inline int obd_extent_calc(struct obd_export *exp,
1197 struct lov_stripe_md *md,
1198 int cmd, obd_off *offset)
1202 EXP_CHECK_DT_OP(exp, extent_calc);
1203 rc = OBP(exp->exp_obd, extent_calc)(exp, md, cmd, offset);
1207 static inline struct dentry *
1208 obd_lvfs_fid2dentry(struct obd_export *exp, __u64 id_ino, __u32 gen, __u64 gr)
1210 struct lvfs_run_ctxt *ctxt = &exp->exp_obd->obd_lvfs_ctxt;
1211 LASSERT(exp->exp_obd);
1213 return ctxt->cb_ops.l_fid2dentry(id_ino, gen, gr, exp->exp_obd);
1217 obd_lvfs_open_llog(struct obd_export *exp, __u64 id_ino, struct dentry *dentry)
1219 LASSERT(exp->exp_obd);
1220 CERROR("FIXME what's the story here? This needs to be an obd fn?\n");
1222 return lvfs_open_llog(&exp->exp_obd->obd_lvfs_ctxt, id_ino,
1223 dentry, exp->exp_obd);
1228 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1229 * If the cache is older than @max_age we will get a new value from the
1230 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1231 static inline int obd_statfs_async(struct obd_export *exp,
1232 struct obd_info *oinfo,
1234 struct ptlrpc_request_set *rqset)
1237 struct obd_device *obd;
1240 if (exp == NULL || exp->exp_obd == NULL)
1244 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1245 OBD_COUNTER_INCREMENT(obd, statfs);
1247 CDEBUG(D_SUPER, "%s: osfs %p age "LPU64", max_age "LPU64"\n",
1248 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
1249 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1250 rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset);
1252 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1253 " objects "LPU64"/"LPU64"\n",
1254 obd->obd_name, &obd->obd_osfs,
1255 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1256 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1257 spin_lock(&obd->obd_osfs_lock);
1258 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
1259 spin_unlock(&obd->obd_osfs_lock);
1260 oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
1261 if (oinfo->oi_cb_up)
1262 oinfo->oi_cb_up(oinfo, 0);
1267 static inline int obd_statfs_rqset(struct obd_export *exp,
1268 struct obd_statfs *osfs, __u64 max_age,
1271 struct ptlrpc_request_set *set = NULL;
1272 struct obd_info oinfo = { { { 0 } } };
1276 set = ptlrpc_prep_set();
1280 oinfo.oi_osfs = osfs;
1281 oinfo.oi_flags = flags;
1282 rc = obd_statfs_async(exp, &oinfo, max_age, set);
1284 rc = ptlrpc_set_wait(set);
1285 ptlrpc_set_destroy(set);
1289 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1290 * If the cache is older than @max_age we will get a new value from the
1291 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1292 static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
1293 struct obd_statfs *osfs, __u64 max_age,
1297 struct obd_device *obd = exp->exp_obd;
1303 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1304 OBD_COUNTER_INCREMENT(obd, statfs);
1306 CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n",
1307 obd->obd_osfs_age, max_age);
1308 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1309 rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
1311 spin_lock(&obd->obd_osfs_lock);
1312 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1313 obd->obd_osfs_age = cfs_time_current_64();
1314 spin_unlock(&obd->obd_osfs_lock);
1317 CDEBUG(D_SUPER, "%s: use %p cache blocks "LPU64"/"LPU64
1318 " objects "LPU64"/"LPU64"\n",
1319 obd->obd_name, &obd->obd_osfs,
1320 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1321 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1322 spin_lock(&obd->obd_osfs_lock);
1323 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1324 spin_unlock(&obd->obd_osfs_lock);
1329 static inline int obd_sync_rqset(struct obd_export *exp, struct obd_info *oinfo,
1330 obd_size start, obd_size end)
1332 struct ptlrpc_request_set *set = NULL;
1336 OBD_CHECK_DT_OP(exp->exp_obd, sync, -EOPNOTSUPP);
1337 EXP_COUNTER_INCREMENT(exp, sync);
1339 set = ptlrpc_prep_set();
1343 rc = OBP(exp->exp_obd, sync)(NULL, exp, oinfo, start, end, set);
1345 rc = ptlrpc_set_wait(set);
1346 ptlrpc_set_destroy(set);
1350 static inline int obd_sync(const struct lu_env *env, struct obd_export *exp,
1351 struct obd_info *oinfo, obd_size start, obd_size end,
1352 struct ptlrpc_request_set *set)
1357 OBD_CHECK_DT_OP(exp->exp_obd, sync, -EOPNOTSUPP);
1358 EXP_COUNTER_INCREMENT(exp, sync);
1360 rc = OBP(exp->exp_obd, sync)(env, exp, oinfo, start, end, set);
1364 static inline int obd_punch_rqset(struct obd_export *exp,
1365 struct obd_info *oinfo,
1366 struct obd_trans_info *oti)
1368 struct ptlrpc_request_set *set = NULL;
1372 EXP_CHECK_DT_OP(exp, punch);
1373 EXP_COUNTER_INCREMENT(exp, punch);
1375 set = ptlrpc_prep_set();
1379 rc = OBP(exp->exp_obd, punch)(NULL, exp, oinfo, oti, set);
1381 rc = ptlrpc_set_wait(set);
1382 ptlrpc_set_destroy(set);
1386 static inline int obd_punch(const struct lu_env *env, struct obd_export *exp,
1387 struct obd_info *oinfo, struct obd_trans_info *oti,
1388 struct ptlrpc_request_set *rqset)
1393 EXP_CHECK_DT_OP(exp, punch);
1394 EXP_COUNTER_INCREMENT(exp, punch);
1396 rc = OBP(exp->exp_obd, punch)(env, exp, oinfo, oti, rqset);
1400 static inline int obd_brw(int cmd, struct obd_export *exp,
1401 struct obd_info *oinfo, obd_count oa_bufs,
1402 struct brw_page *pg, struct obd_trans_info *oti)
1407 EXP_CHECK_DT_OP(exp, brw);
1408 EXP_COUNTER_INCREMENT(exp, brw);
1410 if (!(cmd & (OBD_BRW_RWMASK | OBD_BRW_CHECK))) {
1411 CERROR("obd_brw: cmd must be OBD_BRW_READ, OBD_BRW_WRITE, "
1412 "or OBD_BRW_CHECK\n");
1416 rc = OBP(exp->exp_obd, brw)(cmd, exp, oinfo, oa_bufs, pg, oti);
1420 static inline int obd_preprw(const struct lu_env *env, int cmd,
1421 struct obd_export *exp, struct obdo *oa,
1422 int objcount, struct obd_ioobj *obj,
1423 struct niobuf_remote *remote, int *pages,
1424 struct niobuf_local *local,
1425 struct obd_trans_info *oti,
1426 struct lustre_capa *capa)
1431 EXP_CHECK_DT_OP(exp, preprw);
1432 EXP_COUNTER_INCREMENT(exp, preprw);
1434 rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote,
1435 pages, local, oti, capa);
1439 static inline int obd_commitrw(const struct lu_env *env, int cmd,
1440 struct obd_export *exp, struct obdo *oa,
1441 int objcount, struct obd_ioobj *obj,
1442 struct niobuf_remote *rnb, int pages,
1443 struct niobuf_local *local,
1444 struct obd_trans_info *oti, int rc)
1448 EXP_CHECK_DT_OP(exp, commitrw);
1449 EXP_COUNTER_INCREMENT(exp, commitrw);
1451 rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj,
1452 rnb, pages, local, oti, rc);
1456 static inline int obd_merge_lvb(struct obd_export *exp,
1457 struct lov_stripe_md *lsm,
1458 struct ost_lvb *lvb, int kms_only)
1463 EXP_CHECK_DT_OP(exp, merge_lvb);
1464 EXP_COUNTER_INCREMENT(exp, merge_lvb);
1466 rc = OBP(exp->exp_obd, merge_lvb)(exp, lsm, lvb, kms_only);
1470 static inline int obd_adjust_kms(struct obd_export *exp,
1471 struct lov_stripe_md *lsm, obd_off size,
1477 EXP_CHECK_DT_OP(exp, adjust_kms);
1478 EXP_COUNTER_INCREMENT(exp, adjust_kms);
1480 rc = OBP(exp->exp_obd, adjust_kms)(exp, lsm, size, shrink);
1484 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1485 int len, void *karg, void *uarg)
1490 EXP_CHECK_DT_OP(exp, iocontrol);
1491 EXP_COUNTER_INCREMENT(exp, iocontrol);
1493 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1497 static inline int obd_enqueue_rqset(struct obd_export *exp,
1498 struct obd_info *oinfo,
1499 struct ldlm_enqueue_info *einfo)
1501 struct ptlrpc_request_set *set = NULL;
1505 EXP_CHECK_DT_OP(exp, enqueue);
1506 EXP_COUNTER_INCREMENT(exp, enqueue);
1508 set = ptlrpc_prep_set();
1512 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1514 rc = ptlrpc_set_wait(set);
1515 ptlrpc_set_destroy(set);
1519 static inline int obd_enqueue(struct obd_export *exp,
1520 struct obd_info *oinfo,
1521 struct ldlm_enqueue_info *einfo,
1522 struct ptlrpc_request_set *set)
1527 EXP_CHECK_DT_OP(exp, enqueue);
1528 EXP_COUNTER_INCREMENT(exp, enqueue);
1530 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1534 static inline int obd_change_cbdata(struct obd_export *exp,
1535 struct lov_stripe_md *lsm,
1536 ldlm_iterator_t it, void *data)
1541 EXP_CHECK_DT_OP(exp, change_cbdata);
1542 EXP_COUNTER_INCREMENT(exp, change_cbdata);
1544 rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data);
1548 static inline int obd_find_cbdata(struct obd_export *exp,
1549 struct lov_stripe_md *lsm,
1550 ldlm_iterator_t it, void *data)
1555 EXP_CHECK_DT_OP(exp, find_cbdata);
1556 EXP_COUNTER_INCREMENT(exp, find_cbdata);
1558 rc = OBP(exp->exp_obd, find_cbdata)(exp, lsm, it, data);
1562 static inline int obd_cancel(struct obd_export *exp,
1563 struct lov_stripe_md *ea, __u32 mode,
1564 struct lustre_handle *lockh)
1569 EXP_CHECK_DT_OP(exp, cancel);
1570 EXP_COUNTER_INCREMENT(exp, cancel);
1572 rc = OBP(exp->exp_obd, cancel)(exp, ea, mode, lockh);
1576 static inline int obd_cancel_unused(struct obd_export *exp,
1577 struct lov_stripe_md *ea,
1578 ldlm_cancel_flags_t flags,
1584 EXP_CHECK_DT_OP(exp, cancel_unused);
1585 EXP_COUNTER_INCREMENT(exp, cancel_unused);
1587 rc = OBP(exp->exp_obd, cancel_unused)(exp, ea, flags, opaque);
1591 static inline int obd_pin(struct obd_export *exp, const struct lu_fid *fid,
1592 struct obd_capa *oc, struct obd_client_handle *handle,
1598 EXP_CHECK_DT_OP(exp, pin);
1599 EXP_COUNTER_INCREMENT(exp, pin);
1601 rc = OBP(exp->exp_obd, pin)(exp, fid, oc, handle, flag);
1605 static inline int obd_unpin(struct obd_export *exp,
1606 struct obd_client_handle *handle, int flag)
1611 EXP_CHECK_DT_OP(exp, unpin);
1612 EXP_COUNTER_INCREMENT(exp, unpin);
1614 rc = OBP(exp->exp_obd, unpin)(exp, handle, flag);
1619 static inline void obd_import_event(struct obd_device *obd,
1620 struct obd_import *imp,
1621 enum obd_import_event event)
1625 CERROR("NULL device\n");
1629 if (obd->obd_set_up && OBP(obd, import_event)) {
1630 OBD_COUNTER_INCREMENT(obd, import_event);
1631 OBP(obd, import_event)(obd, imp, event);
1636 static inline int obd_llog_connect(struct obd_export *exp,
1637 struct llogd_conn_body *body)
1642 OBD_CHECK_DT_OP(exp->exp_obd, llog_connect, 0);
1643 EXP_COUNTER_INCREMENT(exp, llog_connect);
1645 rc = OBP(exp->exp_obd, llog_connect)(exp, body);
1650 static inline int obd_notify(struct obd_device *obd,
1651 struct obd_device *watched,
1652 enum obd_notify_event ev,
1659 /* the check for async_recov is a complete hack - I'm hereby
1660 overloading the meaning to also mean "this was called from
1661 mds_postsetup". I know that my mds is able to handle notifies
1662 by this point, and it needs to get them to execute mds_postrecov. */
1663 if (!obd->obd_set_up && !obd->obd_async_recov) {
1664 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1668 if (!OBP(obd, notify)) {
1669 CDEBUG(D_HA, "obd %s has no notify handler\n", obd->obd_name);
1673 OBD_COUNTER_INCREMENT(obd, notify);
1674 rc = OBP(obd, notify)(obd, watched, ev, data);
1678 static inline int obd_notify_observer(struct obd_device *observer,
1679 struct obd_device *observed,
1680 enum obd_notify_event ev,
1686 struct obd_notify_upcall *onu;
1688 if (observer->obd_observer)
1689 rc1 = obd_notify(observer->obd_observer, observed, ev, data);
1693 * Also, call non-obd listener, if any
1695 onu = &observer->obd_upcall;
1696 if (onu->onu_upcall != NULL)
1697 rc2 = onu->onu_upcall(observer, observed, ev,
1698 onu->onu_owner, NULL);
1702 return rc1 ? rc1 : rc2;
1705 static inline int obd_quotacheck(struct obd_export *exp,
1706 struct obd_quotactl *oqctl)
1711 EXP_CHECK_DT_OP(exp, quotacheck);
1712 EXP_COUNTER_INCREMENT(exp, quotacheck);
1714 rc = OBP(exp->exp_obd, quotacheck)(exp->exp_obd, exp, oqctl);
1718 static inline int obd_quotactl(struct obd_export *exp,
1719 struct obd_quotactl *oqctl)
1724 EXP_CHECK_DT_OP(exp, quotactl);
1725 EXP_COUNTER_INCREMENT(exp, quotactl);
1727 rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl);
1731 static inline int obd_health_check(const struct lu_env *env,
1732 struct obd_device *obd)
1734 /* returns: 0 on healthy
1735 * >0 on unhealthy + reason code/flag
1736 * however the only suppored reason == 1 right now
1737 * We'll need to define some better reasons
1738 * or flags in the future.
1744 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1745 if (obd == NULL || !OBT(obd)) {
1746 CERROR("cleaned up obd\n");
1747 RETURN(-EOPNOTSUPP);
1749 if (!obd->obd_set_up || obd->obd_stopping)
1751 if (!OBP(obd, health_check))
1754 rc = OBP(obd, health_check)(env, obd);
1758 static inline int obd_register_observer(struct obd_device *obd,
1759 struct obd_device *observer)
1763 down_write(&obd->obd_observer_link_sem);
1764 if (obd->obd_observer && observer) {
1765 up_write(&obd->obd_observer_link_sem);
1768 obd->obd_observer = observer;
1769 up_write(&obd->obd_observer_link_sem);
1773 static inline int obd_pin_observer(struct obd_device *obd,
1774 struct obd_device **observer)
1777 down_read(&obd->obd_observer_link_sem);
1778 if (!obd->obd_observer) {
1780 up_read(&obd->obd_observer_link_sem);
1783 *observer = obd->obd_observer;
1787 static inline int obd_unpin_observer(struct obd_device *obd)
1790 up_read(&obd->obd_observer_link_sem);
1795 static inline int obd_register_page_removal_cb(struct obd_export *exp,
1796 obd_page_removal_cb_t cb,
1797 obd_pin_extent_cb pin_cb)
1802 OBD_CHECK_DT_OP(exp->exp_obd, register_page_removal_cb, 0);
1803 OBD_COUNTER_INCREMENT(exp->exp_obd, register_page_removal_cb);
1805 rc = OBP(exp->exp_obd, register_page_removal_cb)(exp, cb, pin_cb);
1809 static inline int obd_unregister_page_removal_cb(struct obd_export *exp,
1810 obd_page_removal_cb_t cb)
1815 OBD_CHECK_DT_OP(exp->exp_obd, unregister_page_removal_cb, 0);
1816 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_page_removal_cb);
1818 rc = OBP(exp->exp_obd, unregister_page_removal_cb)(exp, cb);
1822 static inline int obd_register_lock_cancel_cb(struct obd_export *exp,
1823 obd_lock_cancel_cb cb)
1828 OBD_CHECK_DT_OP(exp->exp_obd, register_lock_cancel_cb, 0);
1829 OBD_COUNTER_INCREMENT(exp->exp_obd, register_lock_cancel_cb);
1831 rc = OBP(exp->exp_obd, register_lock_cancel_cb)(exp, cb);
1835 static inline int obd_unregister_lock_cancel_cb(struct obd_export *exp,
1836 obd_lock_cancel_cb cb)
1841 OBD_CHECK_DT_OP(exp->exp_obd, unregister_lock_cancel_cb, 0);
1842 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_lock_cancel_cb);
1844 rc = OBP(exp->exp_obd, unregister_lock_cancel_cb)(exp, cb);
1849 /* metadata helpers */
1850 static inline int md_getstatus(struct obd_export *exp,
1851 struct lu_fid *fid, struct obd_capa **pc)
1856 EXP_CHECK_MD_OP(exp, getstatus);
1857 EXP_MD_COUNTER_INCREMENT(exp, getstatus);
1858 rc = MDP(exp->exp_obd, getstatus)(exp, fid, pc);
1862 static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data,
1863 struct ptlrpc_request **request)
1867 EXP_CHECK_MD_OP(exp, getattr);
1868 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1869 rc = MDP(exp->exp_obd, getattr)(exp, op_data, request);
1873 static inline int md_null_inode(struct obd_export *exp,
1874 const struct lu_fid *fid)
1878 EXP_CHECK_MD_OP(exp, null_inode);
1879 EXP_MD_COUNTER_INCREMENT(exp, null_inode);
1880 rc = MDP(exp->exp_obd, null_inode)(exp, fid);
1884 static inline int md_find_cbdata(struct obd_export *exp,
1885 const struct lu_fid *fid,
1886 ldlm_iterator_t it, void *data)
1890 EXP_CHECK_MD_OP(exp, find_cbdata);
1891 EXP_MD_COUNTER_INCREMENT(exp, find_cbdata);
1892 rc = MDP(exp->exp_obd, find_cbdata)(exp, fid, it, data);
1896 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1897 struct md_open_data *mod,
1898 struct ptlrpc_request **request)
1902 EXP_CHECK_MD_OP(exp, close);
1903 EXP_MD_COUNTER_INCREMENT(exp, close);
1904 rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
1908 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1909 const void *data, int datalen, int mode, __u32 uid,
1910 __u32 gid, cfs_cap_t cap_effective, __u64 rdev,
1911 struct ptlrpc_request **request)
1915 EXP_CHECK_MD_OP(exp, create);
1916 EXP_MD_COUNTER_INCREMENT(exp, create);
1917 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1918 uid, gid, cap_effective, rdev, request);
1922 static inline int md_done_writing(struct obd_export *exp,
1923 struct md_op_data *op_data,
1924 struct md_open_data *mod)
1928 EXP_CHECK_MD_OP(exp, done_writing);
1929 EXP_MD_COUNTER_INCREMENT(exp, done_writing);
1930 rc = MDP(exp->exp_obd, done_writing)(exp, op_data, mod);
1934 static inline int md_enqueue(struct obd_export *exp,
1935 struct ldlm_enqueue_info *einfo,
1936 struct lookup_intent *it,
1937 struct md_op_data *op_data,
1938 struct lustre_handle *lockh,
1939 void *lmm, int lmmsize,
1940 struct ptlrpc_request **req,
1941 int extra_lock_flags)
1945 EXP_CHECK_MD_OP(exp, enqueue);
1946 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1947 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, it, op_data, lockh,
1948 lmm, lmmsize, req, extra_lock_flags);
1952 static inline int md_getattr_name(struct obd_export *exp,
1953 struct md_op_data *op_data,
1954 struct ptlrpc_request **request)
1958 EXP_CHECK_MD_OP(exp, getattr_name);
1959 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1960 rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request);
1964 static inline int md_intent_lock(struct obd_export *exp,
1965 struct md_op_data *op_data, void *lmm,
1966 int lmmsize, struct lookup_intent *it,
1967 int lookup_flags, struct ptlrpc_request **reqp,
1968 ldlm_blocking_callback cb_blocking,
1969 __u64 extra_lock_flags)
1973 EXP_CHECK_MD_OP(exp, intent_lock);
1974 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1975 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, lmm, lmmsize,
1976 it, lookup_flags, reqp, cb_blocking,
1981 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1982 struct ptlrpc_request **request)
1986 EXP_CHECK_MD_OP(exp, link);
1987 EXP_MD_COUNTER_INCREMENT(exp, link);
1988 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1992 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1993 const char *old, int oldlen, const char *new,
1994 int newlen, struct ptlrpc_request **request)
1998 EXP_CHECK_MD_OP(exp, rename);
1999 EXP_MD_COUNTER_INCREMENT(exp, rename);
2000 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
2005 static inline int md_is_subdir(struct obd_export *exp,
2006 const struct lu_fid *pfid,
2007 const struct lu_fid *cfid,
2008 struct ptlrpc_request **request)
2012 EXP_CHECK_MD_OP(exp, is_subdir);
2013 EXP_MD_COUNTER_INCREMENT(exp, is_subdir);
2014 rc = MDP(exp->exp_obd, is_subdir)(exp, pfid, cfid, request);
2018 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
2019 void *ea, int ealen, void *ea2, int ea2len,
2020 struct ptlrpc_request **request,
2021 struct md_open_data **mod)
2025 EXP_CHECK_MD_OP(exp, setattr);
2026 EXP_MD_COUNTER_INCREMENT(exp, setattr);
2027 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen,
2028 ea2, ea2len, request, mod);
2032 static inline int md_sync(struct obd_export *exp, const struct lu_fid *fid,
2033 struct obd_capa *oc, struct ptlrpc_request **request)
2037 EXP_CHECK_MD_OP(exp, sync);
2038 EXP_MD_COUNTER_INCREMENT(exp, sync);
2039 rc = MDP(exp->exp_obd, sync)(exp, fid, oc, request);
2043 static inline int md_readpage(struct obd_export *exp, struct md_op_data *opdata,
2044 struct page **pages,
2045 struct ptlrpc_request **request)
2049 EXP_CHECK_MD_OP(exp, readpage);
2050 EXP_MD_COUNTER_INCREMENT(exp, readpage);
2051 rc = MDP(exp->exp_obd, readpage)(exp, opdata, pages, request);
2055 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
2056 struct ptlrpc_request **request)
2060 EXP_CHECK_MD_OP(exp, unlink);
2061 EXP_MD_COUNTER_INCREMENT(exp, unlink);
2062 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
2066 static inline int md_get_lustre_md(struct obd_export *exp,
2067 struct ptlrpc_request *req,
2068 struct obd_export *dt_exp,
2069 struct obd_export *md_exp,
2070 struct lustre_md *md)
2073 EXP_CHECK_MD_OP(exp, get_lustre_md);
2074 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
2075 RETURN(MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md));
2078 static inline int md_free_lustre_md(struct obd_export *exp,
2079 struct lustre_md *md)
2082 EXP_CHECK_MD_OP(exp, free_lustre_md);
2083 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
2084 RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md));
2087 static inline int md_setxattr(struct obd_export *exp,
2088 const struct lu_fid *fid, struct obd_capa *oc,
2089 obd_valid valid, const char *name,
2090 const char *input, int input_size,
2091 int output_size, int flags, __u32 suppgid,
2092 struct ptlrpc_request **request)
2095 EXP_CHECK_MD_OP(exp, setxattr);
2096 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
2097 RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, oc, valid, name, input,
2098 input_size, output_size, flags,
2102 static inline int md_getxattr(struct obd_export *exp,
2103 const struct lu_fid *fid, struct obd_capa *oc,
2104 obd_valid valid, const char *name,
2105 const char *input, int input_size,
2106 int output_size, int flags,
2107 struct ptlrpc_request **request)
2110 EXP_CHECK_MD_OP(exp, getxattr);
2111 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
2112 RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, oc, valid, name, input,
2113 input_size, output_size, flags,
2117 static inline int md_set_open_replay_data(struct obd_export *exp,
2118 struct obd_client_handle *och,
2119 struct ptlrpc_request *open_req)
2122 EXP_CHECK_MD_OP(exp, set_open_replay_data);
2123 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
2124 RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, open_req));
2127 static inline int md_clear_open_replay_data(struct obd_export *exp,
2128 struct obd_client_handle *och)
2131 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
2132 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
2133 RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och));
2136 static inline int md_set_lock_data(struct obd_export *exp,
2137 __u64 *lockh, void *data, __u64 *bits)
2140 EXP_CHECK_MD_OP(exp, set_lock_data);
2141 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
2142 RETURN(MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits));
2145 static inline int md_cancel_unused(struct obd_export *exp,
2146 const struct lu_fid *fid,
2147 ldlm_policy_data_t *policy,
2149 ldlm_cancel_flags_t flags,
2155 EXP_CHECK_MD_OP(exp, cancel_unused);
2156 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
2158 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
2163 static inline ldlm_mode_t md_lock_match(struct obd_export *exp, __u64 flags,
2164 const struct lu_fid *fid,
2166 ldlm_policy_data_t *policy,
2168 struct lustre_handle *lockh)
2171 EXP_CHECK_MD_OP(exp, lock_match);
2172 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
2173 RETURN(MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
2174 policy, mode, lockh));
2177 static inline int md_init_ea_size(struct obd_export *exp, int easize,
2178 int def_asize, int cookiesize)
2181 EXP_CHECK_MD_OP(exp, init_ea_size);
2182 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
2183 RETURN(MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
2187 static inline int md_get_remote_perm(struct obd_export *exp,
2188 const struct lu_fid *fid,
2189 struct obd_capa *oc, __u32 suppgid,
2190 struct ptlrpc_request **request)
2193 EXP_CHECK_MD_OP(exp, get_remote_perm);
2194 EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm);
2195 RETURN(MDP(exp->exp_obd, get_remote_perm)(exp, fid, oc, suppgid,
2199 static inline int md_renew_capa(struct obd_export *exp, struct obd_capa *ocapa,
2204 EXP_CHECK_MD_OP(exp, renew_capa);
2205 EXP_MD_COUNTER_INCREMENT(exp, renew_capa);
2206 rc = MDP(exp->exp_obd, renew_capa)(exp, ocapa, cb);
2210 static inline int md_unpack_capa(struct obd_export *exp,
2211 struct ptlrpc_request *req,
2212 const struct req_msg_field *field,
2213 struct obd_capa **oc)
2217 EXP_CHECK_MD_OP(exp, unpack_capa);
2218 EXP_MD_COUNTER_INCREMENT(exp, unpack_capa);
2219 rc = MDP(exp->exp_obd, unpack_capa)(exp, req, field, oc);
2223 static inline int md_intent_getattr_async(struct obd_export *exp,
2224 struct md_enqueue_info *minfo,
2225 struct ldlm_enqueue_info *einfo)
2229 EXP_CHECK_MD_OP(exp, intent_getattr_async);
2230 EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
2231 rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo, einfo);
2235 static inline int md_revalidate_lock(struct obd_export *exp,
2236 struct lookup_intent *it,
2237 struct lu_fid *fid, __u64 *bits)
2241 EXP_CHECK_MD_OP(exp, revalidate_lock);
2242 EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
2243 rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits);
2248 /* OBD Metadata Support */
2250 extern int obd_init_caches(void);
2251 extern void obd_cleanup_caches(void);
2253 /* support routines */
2254 extern cfs_mem_cache_t *obdo_cachep;
2256 #define OBDO_ALLOC(ptr) \
2258 OBD_SLAB_ALLOC_PTR_GFP((ptr), obdo_cachep, CFS_ALLOC_IO); \
2261 #define OBDO_FREE(ptr) \
2263 OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
2267 static inline void obdo2fid(struct obdo *oa, struct lu_fid *fid)
2269 /* something here */
2272 static inline void fid2obdo(struct lu_fid *fid, struct obdo *oa)
2274 /* something here */
2277 typedef int (*register_lwp_cb)(void *data);
2279 struct lwp_register_item {
2280 struct obd_export **lri_exp;
2281 register_lwp_cb lri_cb_func;
2283 cfs_list_t lri_list;
2284 char lri_name[MTI_NAME_MAXLEN];
2287 /* I'm as embarrassed about this as you are.
2289 * <shaver> // XXX do not look into _superhack with remaining eye
2290 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
2291 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
2294 int server_name2fsname(char *svname, char *fsname, char **endptr);
2295 int lustre_register_lwp_item(char *lwpname, struct obd_export **exp,
2296 register_lwp_cb cb_func, void *cb_data);
2297 void lustre_deregister_lwp_item(struct obd_export **exp);
2298 int tgt_name2lwpname(char *tgt_name, char *lwp_name);
2301 extern void obd_sysctl_init (void);
2302 extern void obd_sysctl_clean (void);
2305 typedef __u8 class_uuid_t[16];
2306 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
2309 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
2310 int class_add_uuid(const char *uuid, __u64 nid);
2311 int class_del_uuid (const char *uuid);
2312 int class_check_uuid(struct obd_uuid *uuid, __u64 nid);
2313 void class_init_uuidlist(void);
2314 void class_exit_uuidlist(void);
2317 int mea_name2idx(struct lmv_stripe_md *mea, const char *name, int namelen);
2318 int raw_name2idx(int hashtype, int count, const char *name, int namelen);
2321 #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
2323 #endif /* __LINUX_OBD_CLASS_H */