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, 2013, 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,
193 #define PARAMS_FILENAME "params"
194 #define LCTL_UPCALL "lctl"
196 /* list of active configuration logs */
197 struct config_llog_data {
198 struct ldlm_res_id cld_resid;
199 struct config_llog_instance cld_cfg;
200 cfs_list_t cld_list_chain;
201 cfs_atomic_t cld_refcount;
202 struct config_llog_data *cld_sptlrpc;/* depended sptlrpc log */
203 struct config_llog_data *cld_params; /* common parameters log */
204 struct config_llog_data *cld_recover;/* imperative recover log */
205 struct obd_export *cld_mgcexp;
206 struct mutex cld_lock;
208 unsigned int cld_stopping:1, /* we were told to stop
210 cld_lostlock:1; /* lock not requeued */
214 struct lustre_profile {
221 struct lustre_profile *class_get_profile(const char * prof);
222 void class_del_profile(const char *prof);
223 void class_del_profiles(void);
225 #if LUSTRE_TRACKS_LOCK_EXP_REFS
227 void __class_export_add_lock_ref(struct obd_export *, struct ldlm_lock *);
228 void __class_export_del_lock_ref(struct obd_export *, struct ldlm_lock *);
229 extern void (*class_export_dump_hook)(struct obd_export *);
233 #define __class_export_add_lock_ref(exp, lock) do {} while(0)
234 #define __class_export_del_lock_ref(exp, lock) do {} while(0)
238 #define class_export_rpc_inc(exp) \
240 cfs_atomic_inc(&(exp)->exp_rpc_count); \
241 CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \
242 (exp), cfs_atomic_read(&(exp)->exp_rpc_count)); \
245 #define class_export_rpc_dec(exp) \
247 LASSERT_ATOMIC_POS(&exp->exp_rpc_count); \
248 cfs_atomic_dec(&(exp)->exp_rpc_count); \
249 CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \
250 (exp), cfs_atomic_read(&(exp)->exp_rpc_count)); \
253 #define class_export_lock_get(exp, lock) \
255 cfs_atomic_inc(&(exp)->exp_locks_count); \
256 __class_export_add_lock_ref(exp, lock); \
257 CDEBUG(D_INFO, "lock GETting export %p : new locks_count %d\n", \
258 (exp), cfs_atomic_read(&(exp)->exp_locks_count)); \
259 class_export_get(exp); \
262 #define class_export_lock_put(exp, lock) \
264 LASSERT_ATOMIC_POS(&exp->exp_locks_count); \
265 cfs_atomic_dec(&(exp)->exp_locks_count); \
266 __class_export_del_lock_ref(exp, lock); \
267 CDEBUG(D_INFO, "lock PUTting export %p : new locks_count %d\n", \
268 (exp), cfs_atomic_read(&(exp)->exp_locks_count)); \
269 class_export_put(exp); \
272 #define class_export_cb_get(exp) \
274 cfs_atomic_inc(&(exp)->exp_cb_count); \
275 CDEBUG(D_INFO, "callback GETting export %p : new cb_count %d\n",\
276 (exp), cfs_atomic_read(&(exp)->exp_cb_count)); \
277 class_export_get(exp); \
280 #define class_export_cb_put(exp) \
282 LASSERT_ATOMIC_POS(&exp->exp_cb_count); \
283 cfs_atomic_dec(&(exp)->exp_cb_count); \
284 CDEBUG(D_INFO, "callback PUTting export %p : new cb_count %d\n",\
285 (exp), cfs_atomic_read(&(exp)->exp_cb_count)); \
286 class_export_put(exp); \
290 struct obd_export *class_export_get(struct obd_export *exp);
291 void class_export_put(struct obd_export *exp);
292 struct obd_export *class_new_export(struct obd_device *obddev,
293 struct obd_uuid *cluuid);
294 void class_unlink_export(struct obd_export *exp);
296 struct obd_import *class_import_get(struct obd_import *);
297 void class_import_put(struct obd_import *);
298 struct obd_import *class_new_import(struct obd_device *obd);
299 void class_destroy_import(struct obd_import *exp);
301 struct obd_type *class_search_type(const char *name);
302 struct obd_type *class_get_type(const char *name);
303 void class_put_type(struct obd_type *type);
304 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
305 struct obd_uuid *cluuid);
306 int class_disconnect(struct obd_export *exp);
307 void class_fail_export(struct obd_export *exp);
308 int class_connected_export(struct obd_export *exp);
309 void class_disconnect_exports(struct obd_device *obddev);
310 int class_manual_cleanup(struct obd_device *obd);
311 void class_disconnect_stale_exports(struct obd_device *,
312 int (*test_export)(struct obd_export *));
313 static inline enum obd_option exp_flags_from_obd(struct obd_device *obd)
315 return ((obd->obd_fail ? OBD_OPT_FAILOVER : 0) |
316 (obd->obd_force ? OBD_OPT_FORCE : 0) |
317 (obd->obd_abort_recovery ? OBD_OPT_ABORT_RECOV : 0) |
321 #ifdef HAVE_SERVER_SUPPORT
322 static inline struct lu_target *class_exp2tgt(struct obd_export *exp)
324 LASSERT(exp->exp_obd);
325 return exp->exp_obd->u.obt.obt_lut;
328 static inline struct lr_server_data *class_server_data(struct obd_device *obd)
330 LASSERT(obd->u.obt.obt_lut);
331 return &obd->u.obt.obt_lut->lut_lsd;
335 void obdo_cpy_md(struct obdo *dst, struct obdo *src, obd_flag valid);
336 void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj);
337 void obdo_from_iattr(struct obdo *oa, struct iattr *attr,
338 unsigned int ia_valid);
339 void iattr_from_obdo(struct iattr *attr, struct obdo *oa, obd_flag valid);
340 void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, obd_flag valid);
341 void obdo_from_md(struct obdo *oa, struct md_op_data *op_data,
344 void obdo_cpu_to_le(struct obdo *dobdo, struct obdo *sobdo);
345 void obdo_le_to_cpu(struct obdo *dobdo, struct obdo *sobdo);
347 #define OBT(dev) (dev)->obd_type
348 #define OBP(dev, op) (dev)->obd_type->typ_dt_ops->o_ ## op
349 #define MDP(dev, op) (dev)->obd_type->typ_md_ops->m_ ## op
350 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
352 /* Ensure obd_setup: used for cleanup which must be called
353 while obd is stopping */
354 #define OBD_CHECK_DEV(obd) \
357 CERROR("NULL device\n"); \
362 /* ensure obd_setup and !obd_stopping */
363 #define OBD_CHECK_DEV_ACTIVE(obd) \
365 OBD_CHECK_DEV(obd); \
366 if (!(obd)->obd_set_up || (obd)->obd_stopping) { \
367 CERROR("Device %d not setup\n", \
375 #define OBD_COUNTER_OFFSET(op) \
376 ((offsetof(struct obd_ops, o_ ## op) - \
377 offsetof(struct obd_ops, o_iocontrol)) \
378 / sizeof(((struct obd_ops *)(0))->o_iocontrol))
380 #define OBD_COUNTER_INCREMENT(obdx, op) \
381 if ((obdx)->obd_stats != NULL) { \
382 unsigned int coffset; \
383 coffset = (unsigned int)((obdx)->obd_cntr_base) + \
384 OBD_COUNTER_OFFSET(op); \
385 LASSERT(coffset < (obdx)->obd_stats->ls_num); \
386 lprocfs_counter_incr((obdx)->obd_stats, coffset); \
389 #define EXP_COUNTER_INCREMENT(export, op) \
390 if ((export)->exp_obd->obd_stats != NULL) { \
391 unsigned int coffset; \
392 coffset = (unsigned int)((export)->exp_obd->obd_cntr_base) + \
393 OBD_COUNTER_OFFSET(op); \
394 LASSERT(coffset < (export)->exp_obd->obd_stats->ls_num); \
395 lprocfs_counter_incr((export)->exp_obd->obd_stats, coffset); \
396 if ((export)->exp_nid_stats != NULL && \
397 (export)->exp_nid_stats->nid_stats != NULL) \
398 lprocfs_counter_incr( \
399 (export)->exp_nid_stats->nid_stats, coffset);\
402 #define MD_COUNTER_OFFSET(op) \
403 ((offsetof(struct md_ops, m_ ## op) - \
404 offsetof(struct md_ops, m_getstatus)) \
405 / sizeof(((struct md_ops *)(0))->m_getstatus))
407 #define MD_COUNTER_INCREMENT(obdx, op) \
408 if ((obd)->md_stats != NULL) { \
409 unsigned int coffset; \
410 coffset = (unsigned int)((obdx)->md_cntr_base) + \
411 MD_COUNTER_OFFSET(op); \
412 LASSERT(coffset < (obdx)->md_stats->ls_num); \
413 lprocfs_counter_incr((obdx)->md_stats, coffset); \
416 #define EXP_MD_COUNTER_INCREMENT(export, op) \
417 if ((export)->exp_obd->obd_stats != NULL) { \
418 unsigned int coffset; \
419 coffset = (unsigned int)((export)->exp_obd->md_cntr_base) + \
420 MD_COUNTER_OFFSET(op); \
421 LASSERT(coffset < (export)->exp_obd->md_stats->ls_num); \
422 lprocfs_counter_incr((export)->exp_obd->md_stats, coffset); \
423 if ((export)->exp_md_stats != NULL) \
424 lprocfs_counter_incr( \
425 (export)->exp_md_stats, coffset); \
429 #define OBD_COUNTER_OFFSET(op)
430 #define OBD_COUNTER_INCREMENT(obd, op)
431 #define EXP_COUNTER_INCREMENT(exp, op)
432 #define MD_COUNTER_INCREMENT(obd, op)
433 #define EXP_MD_COUNTER_INCREMENT(exp, op)
436 static inline int lprocfs_nid_ldlm_stats_init(struct nid_stat* tmp)
438 /* Always add in ldlm_stats */
439 tmp->nid_ldlm_stats = lprocfs_alloc_stats(LDLM_LAST_OPC - LDLM_FIRST_OPC
440 ,LPROCFS_STATS_FLAG_NOPERCPU);
441 if (tmp->nid_ldlm_stats == NULL)
444 lprocfs_init_ldlm_stats(tmp->nid_ldlm_stats);
446 return lprocfs_register_stats(tmp->nid_proc, "ldlm_stats",
447 tmp->nid_ldlm_stats);
450 #define OBD_CHECK_MD_OP(obd, op, err) \
452 if (!OBT(obd) || !MDP((obd), op)) { \
454 CERROR("md_" #op ": dev %s/%d no operation\n", \
455 obd->obd_name, obd->obd_minor); \
460 #define EXP_CHECK_MD_OP(exp, op) \
462 if ((exp) == NULL) { \
463 CERROR("obd_" #op ": NULL export\n"); \
466 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
467 CERROR("obd_" #op ": cleaned up obd\n"); \
468 RETURN(-EOPNOTSUPP); \
470 if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
471 CERROR("obd_" #op ": dev %s/%d no operation\n", \
472 (exp)->exp_obd->obd_name, \
473 (exp)->exp_obd->obd_minor); \
474 RETURN(-EOPNOTSUPP); \
479 #define OBD_CHECK_DT_OP(obd, op, err) \
481 if (!OBT(obd) || !OBP((obd), op)) { \
483 CERROR("obd_" #op ": dev %d no operation\n", \
489 #define EXP_CHECK_DT_OP(exp, op) \
491 if ((exp) == NULL) { \
492 CERROR("obd_" #op ": NULL export\n"); \
495 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
496 CERROR("obd_" #op ": cleaned up obd\n"); \
497 RETURN(-EOPNOTSUPP); \
499 if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
500 CERROR("obd_" #op ": dev %d no operation\n", \
501 (exp)->exp_obd->obd_minor); \
502 RETURN(-EOPNOTSUPP); \
506 #define CTXT_CHECK_OP(ctxt, op, err) \
508 if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
510 CERROR("lop_" #op ": dev %d no operation\n", \
511 ctxt->loc_obd->obd_minor); \
516 static inline int class_devno_max(void)
518 return MAX_OBD_DEVICES;
521 static inline int obd_get_info(const struct lu_env *env,
522 struct obd_export *exp, __u32 keylen,
523 void *key, __u32 *vallen, void *val,
524 struct lov_stripe_md *lsm)
529 EXP_CHECK_DT_OP(exp, get_info);
530 EXP_COUNTER_INCREMENT(exp, get_info);
532 rc = OBP(exp->exp_obd, get_info)(env, exp, keylen, key, vallen, val,
537 static inline int obd_set_info_async(const struct lu_env *env,
538 struct obd_export *exp, obd_count keylen,
539 void *key, obd_count vallen, void *val,
540 struct ptlrpc_request_set *set)
545 EXP_CHECK_DT_OP(exp, set_info_async);
546 EXP_COUNTER_INCREMENT(exp, set_info_async);
548 rc = OBP(exp->exp_obd, set_info_async)(env, exp, keylen, key, vallen,
554 * obd-lu integration.
556 * Functionality is being moved into new lu_device-based layering, but some
557 * pieces of configuration process are still based on obd devices.
559 * Specifically, lu_device_type_operations::ldto_device_alloc() methods fully
560 * subsume ->o_setup() methods of obd devices they replace. The same for
561 * lu_device_operations::ldo_process_config() and ->o_process_config(). As a
562 * result, obd_setup() and obd_process_config() branch and call one XOR
565 * Yet neither lu_device_type_operations::ldto_device_fini() nor
566 * lu_device_type_operations::ldto_device_free() fully implement the
567 * functionality of ->o_precleanup() and ->o_cleanup() they override. Hence,
568 * obd_precleanup() and obd_cleanup() call both lu_device and obd operations.
571 #define DECLARE_LU_VARS(ldt, d) \
572 struct lu_device_type *ldt; \
575 static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
578 DECLARE_LU_VARS(ldt, d);
581 ldt = obd->obd_type->typ_lu;
583 struct lu_context session_ctx;
585 lu_context_init(&session_ctx, LCT_SESSION);
586 session_ctx.lc_thread = NULL;
587 lu_context_enter(&session_ctx);
589 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
591 env.le_ses = &session_ctx;
592 d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
601 lu_context_exit(&session_ctx);
602 lu_context_fini(&session_ctx);
605 OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
606 OBD_COUNTER_INCREMENT(obd, setup);
607 rc = OBP(obd, setup)(obd, cfg);
612 static inline int obd_precleanup(struct obd_device *obd,
613 enum obd_cleanup_stage cleanup_stage)
616 DECLARE_LU_VARS(ldt, d);
620 ldt = obd->obd_type->typ_lu;
622 if (ldt != NULL && d != NULL) {
623 if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
626 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
628 ldt->ldt_ops->ldto_device_fini(&env, d);
633 OBD_CHECK_DT_OP(obd, precleanup, 0);
634 OBD_COUNTER_INCREMENT(obd, precleanup);
636 rc = OBP(obd, precleanup)(obd, cleanup_stage);
640 static inline int obd_cleanup(struct obd_device *obd)
643 DECLARE_LU_VARS(ldt, d);
648 ldt = obd->obd_type->typ_lu;
650 if (ldt != NULL && d != NULL) {
653 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
655 ldt->ldt_ops->ldto_device_free(&env, d);
657 obd->obd_lu_dev = NULL;
660 OBD_CHECK_DT_OP(obd, cleanup, 0);
661 OBD_COUNTER_INCREMENT(obd, cleanup);
663 rc = OBP(obd, cleanup)(obd);
667 static inline void obd_cleanup_client_import(struct obd_device *obd)
671 /* If we set up but never connected, the
672 client import will not have been cleaned. */
673 down_write(&obd->u.cli.cl_sem);
674 if (obd->u.cli.cl_import) {
675 struct obd_import *imp;
676 imp = obd->u.cli.cl_import;
677 CDEBUG(D_CONFIG, "%s: client import never connected\n",
679 ptlrpc_invalidate_import(imp);
680 if (imp->imp_rq_pool) {
681 ptlrpc_free_rq_pool(imp->imp_rq_pool);
682 imp->imp_rq_pool = NULL;
684 client_destroy_import(imp);
685 obd->u.cli.cl_import = NULL;
687 up_write(&obd->u.cli.cl_sem);
693 obd_process_config(struct obd_device *obd, int datalen, void *data)
696 DECLARE_LU_VARS(ldt, d);
701 obd->obd_process_conf = 1;
702 ldt = obd->obd_type->typ_lu;
704 if (ldt != NULL && d != NULL) {
707 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
709 rc = d->ld_ops->ldo_process_config(&env, d, data);
713 OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
714 rc = OBP(obd, process_config)(obd, datalen, data);
716 OBD_COUNTER_INCREMENT(obd, process_config);
717 obd->obd_process_conf = 0;
722 /* Pack an in-memory MD struct for storage on disk.
723 * Returns +ve size of packed MD (0 for free), or -ve error.
725 * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL).
726 * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed.
727 * If @*disk_tgt == NULL, it will be allocated
729 static inline int obd_packmd(struct obd_export *exp,
730 struct lov_mds_md **disk_tgt,
731 struct lov_stripe_md *mem_src)
736 EXP_CHECK_DT_OP(exp, packmd);
737 EXP_COUNTER_INCREMENT(exp, packmd);
739 rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src);
743 static inline int obd_size_diskmd(struct obd_export *exp,
744 struct lov_stripe_md *mem_src)
746 return obd_packmd(exp, NULL, mem_src);
749 /* helper functions */
750 static inline int obd_alloc_diskmd(struct obd_export *exp,
751 struct lov_mds_md **disk_tgt)
754 LASSERT(*disk_tgt == NULL);
755 return obd_packmd(exp, disk_tgt, NULL);
758 static inline int obd_free_diskmd(struct obd_export *exp,
759 struct lov_mds_md **disk_tgt)
764 * LU-2590, for caller's convenience, *disk_tgt could be host
765 * endianness, it needs swab to LE if necessary, while just
766 * lov_mds_md header needs it for figuring out how much memory
769 if ((cpu_to_le32(LOV_MAGIC) != LOV_MAGIC) &&
770 (((*disk_tgt)->lmm_magic == LOV_MAGIC_V1) ||
771 ((*disk_tgt)->lmm_magic == LOV_MAGIC_V3)))
772 lustre_swab_lov_mds_md(*disk_tgt);
773 return obd_packmd(exp, disk_tgt, NULL);
776 /* Unpack an MD struct from disk to in-memory format.
777 * Returns +ve size of unpacked MD (0 for free), or -ve error.
779 * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL).
780 * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed.
781 * If @*mem_tgt == NULL, it will be allocated
783 static inline int obd_unpackmd(struct obd_export *exp,
784 struct lov_stripe_md **mem_tgt,
785 struct lov_mds_md *disk_src,
791 EXP_CHECK_DT_OP(exp, unpackmd);
792 EXP_COUNTER_INCREMENT(exp, unpackmd);
794 rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len);
798 /* helper functions */
799 static inline int obd_alloc_memmd(struct obd_export *exp,
800 struct lov_stripe_md **mem_tgt)
803 LASSERT(*mem_tgt == NULL);
804 return obd_unpackmd(exp, mem_tgt, NULL, 0);
807 static inline int obd_free_memmd(struct obd_export *exp,
808 struct lov_stripe_md **mem_tgt)
814 rc = obd_unpackmd(exp, mem_tgt, NULL, 0);
819 static inline int obd_precreate(struct obd_export *exp)
824 EXP_CHECK_DT_OP(exp, precreate);
825 OBD_COUNTER_INCREMENT(exp->exp_obd, precreate);
827 rc = OBP(exp->exp_obd, precreate)(exp);
831 static inline int obd_create_async(struct obd_export *exp,
832 struct obd_info *oinfo,
833 struct lov_stripe_md **ea,
834 struct obd_trans_info *oti)
839 EXP_CHECK_DT_OP(exp, create_async);
840 EXP_COUNTER_INCREMENT(exp, create_async);
842 rc = OBP(exp->exp_obd, create_async)(exp, oinfo, ea, oti);
846 static inline int obd_create(const struct lu_env *env, struct obd_export *exp,
847 struct obdo *obdo, struct lov_stripe_md **ea,
848 struct obd_trans_info *oti)
853 EXP_CHECK_DT_OP(exp, create);
854 EXP_COUNTER_INCREMENT(exp, create);
856 rc = OBP(exp->exp_obd, create)(env, exp, obdo, ea, oti);
860 static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp,
861 struct obdo *obdo, struct lov_stripe_md *ea,
862 struct obd_trans_info *oti,
863 struct obd_export *md_exp, void *capa)
868 EXP_CHECK_DT_OP(exp, destroy);
869 EXP_COUNTER_INCREMENT(exp, destroy);
871 rc = OBP(exp->exp_obd, destroy)(env, exp, obdo, ea, oti, md_exp, capa);
875 static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp,
876 struct obd_info *oinfo)
881 EXP_CHECK_DT_OP(exp, getattr);
882 EXP_COUNTER_INCREMENT(exp, getattr);
884 rc = OBP(exp->exp_obd, getattr)(env, exp, oinfo);
888 static inline int obd_getattr_async(struct obd_export *exp,
889 struct obd_info *oinfo,
890 struct ptlrpc_request_set *set)
895 EXP_CHECK_DT_OP(exp, getattr_async);
896 EXP_COUNTER_INCREMENT(exp, getattr_async);
898 rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set);
902 static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp,
903 struct obd_info *oinfo,
904 struct obd_trans_info *oti)
909 EXP_CHECK_DT_OP(exp, setattr);
910 EXP_COUNTER_INCREMENT(exp, setattr);
912 rc = OBP(exp->exp_obd, setattr)(env, exp, oinfo, oti);
916 /* This performs all the requests set init/wait/destroy actions. */
917 static inline int obd_setattr_rqset(struct obd_export *exp,
918 struct obd_info *oinfo,
919 struct obd_trans_info *oti)
921 struct ptlrpc_request_set *set = NULL;
925 EXP_CHECK_DT_OP(exp, setattr_async);
926 EXP_COUNTER_INCREMENT(exp, setattr_async);
928 set = ptlrpc_prep_set();
932 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
934 rc = ptlrpc_set_wait(set);
935 ptlrpc_set_destroy(set);
939 /* This adds all the requests into @set if @set != NULL, otherwise
940 all requests are sent asynchronously without waiting for response. */
941 static inline int obd_setattr_async(struct obd_export *exp,
942 struct obd_info *oinfo,
943 struct obd_trans_info *oti,
944 struct ptlrpc_request_set *set)
949 EXP_CHECK_DT_OP(exp, setattr_async);
950 EXP_COUNTER_INCREMENT(exp, setattr_async);
952 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
956 static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
959 struct obd_device *obd = imp->imp_obd;
963 OBD_CHECK_DEV_ACTIVE(obd);
964 OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
965 OBD_COUNTER_INCREMENT(obd, add_conn);
967 rc = OBP(obd, add_conn)(imp, uuid, priority);
971 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
973 struct obd_device *obd = imp->imp_obd;
977 OBD_CHECK_DEV_ACTIVE(obd);
978 OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
979 OBD_COUNTER_INCREMENT(obd, del_conn);
981 rc = OBP(obd, del_conn)(imp, uuid);
985 static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp)
987 struct obd_uuid *uuid;
990 OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL);
991 EXP_COUNTER_INCREMENT(exp, get_uuid);
993 uuid = OBP(exp->exp_obd, get_uuid)(exp);
997 /** Create a new /a exp on device /a obd for the uuid /a cluuid
998 * @param exp New export handle
999 * @param d Connect data, supported flags are set, flags also understood
1000 * by obd are returned.
1002 static inline int obd_connect(const struct lu_env *env,
1003 struct obd_export **exp,struct obd_device *obd,
1004 struct obd_uuid *cluuid,
1005 struct obd_connect_data *data,
1009 __u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
1013 OBD_CHECK_DEV_ACTIVE(obd);
1014 OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
1015 OBD_COUNTER_INCREMENT(obd, connect);
1017 rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata);
1018 /* check that only subset is granted */
1019 LASSERT(ergo(data != NULL, (data->ocd_connect_flags & ocf) ==
1020 data->ocd_connect_flags));
1024 static inline int obd_reconnect(const struct lu_env *env,
1025 struct obd_export *exp,
1026 struct obd_device *obd,
1027 struct obd_uuid *cluuid,
1028 struct obd_connect_data *d,
1032 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
1037 OBD_CHECK_DEV_ACTIVE(obd);
1038 OBD_CHECK_DT_OP(obd, reconnect, 0);
1039 OBD_COUNTER_INCREMENT(obd, reconnect);
1041 rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
1042 /* check that only subset is granted */
1043 LASSERT(ergo(d != NULL,
1044 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
1048 static inline int obd_disconnect(struct obd_export *exp)
1053 EXP_CHECK_DT_OP(exp, disconnect);
1054 EXP_COUNTER_INCREMENT(exp, disconnect);
1056 rc = OBP(exp->exp_obd, disconnect)(exp);
1060 static inline int obd_fid_init(struct obd_device *obd, struct obd_export *exp,
1061 enum lu_cli_type type)
1066 OBD_CHECK_DT_OP(obd, fid_init, 0);
1067 OBD_COUNTER_INCREMENT(obd, fid_init);
1069 rc = OBP(obd, fid_init)(obd, exp, type);
1073 static inline int obd_fid_fini(struct obd_device *obd)
1078 OBD_CHECK_DT_OP(obd, fid_fini, 0);
1079 OBD_COUNTER_INCREMENT(obd, fid_fini);
1081 rc = OBP(obd, fid_fini)(obd);
1085 static inline int obd_fid_alloc(struct obd_export *exp,
1087 struct md_op_data *op_data)
1092 EXP_CHECK_DT_OP(exp, fid_alloc);
1093 EXP_COUNTER_INCREMENT(exp, fid_alloc);
1095 rc = OBP(exp->exp_obd, fid_alloc)(exp, fid, op_data);
1099 static inline int obd_ping(const struct lu_env *env, struct obd_export *exp)
1104 OBD_CHECK_DT_OP(exp->exp_obd, ping, 0);
1105 EXP_COUNTER_INCREMENT(exp, ping);
1107 rc = OBP(exp->exp_obd, ping)(env, exp);
1111 static inline int obd_pool_new(struct obd_device *obd, char *poolname)
1116 OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP);
1117 OBD_COUNTER_INCREMENT(obd, pool_new);
1119 rc = OBP(obd, pool_new)(obd, poolname);
1123 static inline int obd_pool_del(struct obd_device *obd, char *poolname)
1128 OBD_CHECK_DT_OP(obd, pool_del, -EOPNOTSUPP);
1129 OBD_COUNTER_INCREMENT(obd, pool_del);
1131 rc = OBP(obd, pool_del)(obd, poolname);
1135 static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname)
1140 OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP);
1141 OBD_COUNTER_INCREMENT(obd, pool_add);
1143 rc = OBP(obd, pool_add)(obd, poolname, ostname);
1147 static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname)
1152 OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP);
1153 OBD_COUNTER_INCREMENT(obd, pool_rem);
1155 rc = OBP(obd, pool_rem)(obd, poolname, ostname);
1159 static inline void obd_getref(struct obd_device *obd)
1162 if (OBT(obd) && OBP(obd, getref)) {
1163 OBD_COUNTER_INCREMENT(obd, getref);
1164 OBP(obd, getref)(obd);
1169 static inline void obd_putref(struct obd_device *obd)
1172 if (OBT(obd) && OBP(obd, putref)) {
1173 OBD_COUNTER_INCREMENT(obd, putref);
1174 OBP(obd, putref)(obd);
1179 static inline int obd_init_export(struct obd_export *exp)
1184 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1185 OBP((exp)->exp_obd, init_export))
1186 rc = OBP(exp->exp_obd, init_export)(exp);
1190 static inline int obd_destroy_export(struct obd_export *exp)
1193 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1194 OBP((exp)->exp_obd, destroy_export))
1195 OBP(exp->exp_obd, destroy_export)(exp);
1199 static inline int obd_extent_calc(struct obd_export *exp,
1200 struct lov_stripe_md *md,
1201 int cmd, obd_off *offset)
1205 EXP_CHECK_DT_OP(exp, extent_calc);
1206 rc = OBP(exp->exp_obd, extent_calc)(exp, md, cmd, offset);
1210 static inline struct dentry *
1211 obd_lvfs_fid2dentry(struct obd_export *exp, struct ost_id *oi, __u32 gen)
1213 struct lvfs_run_ctxt *ctxt = &exp->exp_obd->obd_lvfs_ctxt;
1214 LASSERT(exp->exp_obd);
1216 return ctxt->cb_ops.l_fid2dentry(ostid_id(oi), gen, ostid_seq(oi),
1220 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1221 * If the cache is older than @max_age we will get a new value from the
1222 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1223 static inline int obd_statfs_async(struct obd_export *exp,
1224 struct obd_info *oinfo,
1226 struct ptlrpc_request_set *rqset)
1229 struct obd_device *obd;
1232 if (exp == NULL || exp->exp_obd == NULL)
1236 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1237 OBD_COUNTER_INCREMENT(obd, statfs);
1239 CDEBUG(D_SUPER, "%s: osfs %p age "LPU64", max_age "LPU64"\n",
1240 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
1241 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1242 rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset);
1244 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1245 " objects "LPU64"/"LPU64"\n",
1246 obd->obd_name, &obd->obd_osfs,
1247 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1248 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1249 spin_lock(&obd->obd_osfs_lock);
1250 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
1251 spin_unlock(&obd->obd_osfs_lock);
1252 oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
1253 if (oinfo->oi_cb_up)
1254 oinfo->oi_cb_up(oinfo, 0);
1259 static inline int obd_statfs_rqset(struct obd_export *exp,
1260 struct obd_statfs *osfs, __u64 max_age,
1263 struct ptlrpc_request_set *set = NULL;
1264 struct obd_info oinfo = { { { 0 } } };
1268 set = ptlrpc_prep_set();
1272 oinfo.oi_osfs = osfs;
1273 oinfo.oi_flags = flags;
1274 rc = obd_statfs_async(exp, &oinfo, max_age, set);
1276 rc = ptlrpc_set_wait(set);
1277 ptlrpc_set_destroy(set);
1281 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1282 * If the cache is older than @max_age we will get a new value from the
1283 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1284 static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
1285 struct obd_statfs *osfs, __u64 max_age,
1289 struct obd_device *obd = exp->exp_obd;
1295 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1296 OBD_COUNTER_INCREMENT(obd, statfs);
1298 CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n",
1299 obd->obd_osfs_age, max_age);
1300 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1301 rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
1303 spin_lock(&obd->obd_osfs_lock);
1304 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1305 obd->obd_osfs_age = cfs_time_current_64();
1306 spin_unlock(&obd->obd_osfs_lock);
1309 CDEBUG(D_SUPER, "%s: use %p cache blocks "LPU64"/"LPU64
1310 " objects "LPU64"/"LPU64"\n",
1311 obd->obd_name, &obd->obd_osfs,
1312 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1313 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1314 spin_lock(&obd->obd_osfs_lock);
1315 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1316 spin_unlock(&obd->obd_osfs_lock);
1321 static inline int obd_sync_rqset(struct obd_export *exp, struct obd_info *oinfo,
1322 obd_size start, obd_size end)
1324 struct ptlrpc_request_set *set = NULL;
1328 OBD_CHECK_DT_OP(exp->exp_obd, sync, -EOPNOTSUPP);
1329 EXP_COUNTER_INCREMENT(exp, sync);
1331 set = ptlrpc_prep_set();
1335 rc = OBP(exp->exp_obd, sync)(NULL, exp, oinfo, start, end, set);
1337 rc = ptlrpc_set_wait(set);
1338 ptlrpc_set_destroy(set);
1342 static inline int obd_sync(const struct lu_env *env, struct obd_export *exp,
1343 struct obd_info *oinfo, obd_size start, obd_size end,
1344 struct ptlrpc_request_set *set)
1349 OBD_CHECK_DT_OP(exp->exp_obd, sync, -EOPNOTSUPP);
1350 EXP_COUNTER_INCREMENT(exp, sync);
1352 rc = OBP(exp->exp_obd, sync)(env, exp, oinfo, start, end, set);
1356 static inline int obd_punch_rqset(struct obd_export *exp,
1357 struct obd_info *oinfo,
1358 struct obd_trans_info *oti)
1360 struct ptlrpc_request_set *set = NULL;
1364 EXP_CHECK_DT_OP(exp, punch);
1365 EXP_COUNTER_INCREMENT(exp, punch);
1367 set = ptlrpc_prep_set();
1371 rc = OBP(exp->exp_obd, punch)(NULL, exp, oinfo, oti, set);
1373 rc = ptlrpc_set_wait(set);
1374 ptlrpc_set_destroy(set);
1378 static inline int obd_punch(const struct lu_env *env, struct obd_export *exp,
1379 struct obd_info *oinfo, struct obd_trans_info *oti,
1380 struct ptlrpc_request_set *rqset)
1385 EXP_CHECK_DT_OP(exp, punch);
1386 EXP_COUNTER_INCREMENT(exp, punch);
1388 rc = OBP(exp->exp_obd, punch)(env, exp, oinfo, oti, rqset);
1392 static inline int obd_brw(int cmd, struct obd_export *exp,
1393 struct obd_info *oinfo, obd_count oa_bufs,
1394 struct brw_page *pg, struct obd_trans_info *oti)
1399 EXP_CHECK_DT_OP(exp, brw);
1400 EXP_COUNTER_INCREMENT(exp, brw);
1402 if (!(cmd & (OBD_BRW_RWMASK | OBD_BRW_CHECK))) {
1403 CERROR("obd_brw: cmd must be OBD_BRW_READ, OBD_BRW_WRITE, "
1404 "or OBD_BRW_CHECK\n");
1408 rc = OBP(exp->exp_obd, brw)(cmd, exp, oinfo, oa_bufs, pg, oti);
1412 static inline int obd_preprw(const struct lu_env *env, int cmd,
1413 struct obd_export *exp, struct obdo *oa,
1414 int objcount, struct obd_ioobj *obj,
1415 struct niobuf_remote *remote, int *pages,
1416 struct niobuf_local *local,
1417 struct obd_trans_info *oti,
1418 struct lustre_capa *capa)
1423 EXP_CHECK_DT_OP(exp, preprw);
1424 EXP_COUNTER_INCREMENT(exp, preprw);
1426 rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote,
1427 pages, local, oti, capa);
1431 static inline int obd_commitrw(const struct lu_env *env, int cmd,
1432 struct obd_export *exp, struct obdo *oa,
1433 int objcount, struct obd_ioobj *obj,
1434 struct niobuf_remote *rnb, int pages,
1435 struct niobuf_local *local,
1436 struct obd_trans_info *oti, int rc)
1440 EXP_CHECK_DT_OP(exp, commitrw);
1441 EXP_COUNTER_INCREMENT(exp, commitrw);
1443 rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj,
1444 rnb, pages, local, oti, rc);
1448 static inline int obd_merge_lvb(struct obd_export *exp,
1449 struct lov_stripe_md *lsm,
1450 struct ost_lvb *lvb, int kms_only)
1455 EXP_CHECK_DT_OP(exp, merge_lvb);
1456 EXP_COUNTER_INCREMENT(exp, merge_lvb);
1458 rc = OBP(exp->exp_obd, merge_lvb)(exp, lsm, lvb, kms_only);
1462 static inline int obd_adjust_kms(struct obd_export *exp,
1463 struct lov_stripe_md *lsm, obd_off size,
1469 EXP_CHECK_DT_OP(exp, adjust_kms);
1470 EXP_COUNTER_INCREMENT(exp, adjust_kms);
1472 rc = OBP(exp->exp_obd, adjust_kms)(exp, lsm, size, shrink);
1476 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1477 int len, void *karg, void *uarg)
1482 EXP_CHECK_DT_OP(exp, iocontrol);
1483 EXP_COUNTER_INCREMENT(exp, iocontrol);
1485 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1489 static inline int obd_enqueue_rqset(struct obd_export *exp,
1490 struct obd_info *oinfo,
1491 struct ldlm_enqueue_info *einfo)
1493 struct ptlrpc_request_set *set = NULL;
1497 EXP_CHECK_DT_OP(exp, enqueue);
1498 EXP_COUNTER_INCREMENT(exp, enqueue);
1500 set = ptlrpc_prep_set();
1504 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1506 rc = ptlrpc_set_wait(set);
1507 ptlrpc_set_destroy(set);
1511 static inline int obd_enqueue(struct obd_export *exp,
1512 struct obd_info *oinfo,
1513 struct ldlm_enqueue_info *einfo,
1514 struct ptlrpc_request_set *set)
1519 EXP_CHECK_DT_OP(exp, enqueue);
1520 EXP_COUNTER_INCREMENT(exp, enqueue);
1522 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1526 static inline int obd_change_cbdata(struct obd_export *exp,
1527 struct lov_stripe_md *lsm,
1528 ldlm_iterator_t it, void *data)
1533 EXP_CHECK_DT_OP(exp, change_cbdata);
1534 EXP_COUNTER_INCREMENT(exp, change_cbdata);
1536 rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data);
1540 static inline int obd_find_cbdata(struct obd_export *exp,
1541 struct lov_stripe_md *lsm,
1542 ldlm_iterator_t it, void *data)
1547 EXP_CHECK_DT_OP(exp, find_cbdata);
1548 EXP_COUNTER_INCREMENT(exp, find_cbdata);
1550 rc = OBP(exp->exp_obd, find_cbdata)(exp, lsm, it, data);
1554 static inline int obd_cancel(struct obd_export *exp,
1555 struct lov_stripe_md *ea, __u32 mode,
1556 struct lustre_handle *lockh)
1561 EXP_CHECK_DT_OP(exp, cancel);
1562 EXP_COUNTER_INCREMENT(exp, cancel);
1564 rc = OBP(exp->exp_obd, cancel)(exp, ea, mode, lockh);
1568 static inline int obd_cancel_unused(struct obd_export *exp,
1569 struct lov_stripe_md *ea,
1570 ldlm_cancel_flags_t flags,
1576 EXP_CHECK_DT_OP(exp, cancel_unused);
1577 EXP_COUNTER_INCREMENT(exp, cancel_unused);
1579 rc = OBP(exp->exp_obd, cancel_unused)(exp, ea, flags, opaque);
1583 static inline int obd_pin(struct obd_export *exp, const struct lu_fid *fid,
1584 struct obd_capa *oc, struct obd_client_handle *handle,
1590 EXP_CHECK_DT_OP(exp, pin);
1591 EXP_COUNTER_INCREMENT(exp, pin);
1593 rc = OBP(exp->exp_obd, pin)(exp, fid, oc, handle, flag);
1597 static inline int obd_unpin(struct obd_export *exp,
1598 struct obd_client_handle *handle, int flag)
1603 EXP_CHECK_DT_OP(exp, unpin);
1604 EXP_COUNTER_INCREMENT(exp, unpin);
1606 rc = OBP(exp->exp_obd, unpin)(exp, handle, flag);
1611 static inline void obd_import_event(struct obd_device *obd,
1612 struct obd_import *imp,
1613 enum obd_import_event event)
1617 CERROR("NULL device\n");
1621 if (obd->obd_set_up && OBP(obd, import_event)) {
1622 OBD_COUNTER_INCREMENT(obd, import_event);
1623 OBP(obd, import_event)(obd, imp, event);
1628 static inline int obd_llog_connect(struct obd_export *exp,
1629 struct llogd_conn_body *body)
1634 OBD_CHECK_DT_OP(exp->exp_obd, llog_connect, 0);
1635 EXP_COUNTER_INCREMENT(exp, llog_connect);
1637 rc = OBP(exp->exp_obd, llog_connect)(exp, body);
1642 static inline int obd_notify(struct obd_device *obd,
1643 struct obd_device *watched,
1644 enum obd_notify_event ev,
1651 /* the check for async_recov is a complete hack - I'm hereby
1652 overloading the meaning to also mean "this was called from
1653 mds_postsetup". I know that my mds is able to handle notifies
1654 by this point, and it needs to get them to execute mds_postrecov. */
1655 if (!obd->obd_set_up && !obd->obd_async_recov) {
1656 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1660 if (!OBP(obd, notify)) {
1661 CDEBUG(D_HA, "obd %s has no notify handler\n", obd->obd_name);
1665 OBD_COUNTER_INCREMENT(obd, notify);
1666 rc = OBP(obd, notify)(obd, watched, ev, data);
1670 static inline int obd_notify_observer(struct obd_device *observer,
1671 struct obd_device *observed,
1672 enum obd_notify_event ev,
1678 struct obd_notify_upcall *onu;
1680 if (observer->obd_observer)
1681 rc1 = obd_notify(observer->obd_observer, observed, ev, data);
1685 * Also, call non-obd listener, if any
1687 onu = &observer->obd_upcall;
1688 if (onu->onu_upcall != NULL)
1689 rc2 = onu->onu_upcall(observer, observed, ev,
1690 onu->onu_owner, NULL);
1694 return rc1 ? rc1 : rc2;
1697 static inline int obd_quotacheck(struct obd_export *exp,
1698 struct obd_quotactl *oqctl)
1703 EXP_CHECK_DT_OP(exp, quotacheck);
1704 EXP_COUNTER_INCREMENT(exp, quotacheck);
1706 rc = OBP(exp->exp_obd, quotacheck)(exp->exp_obd, exp, oqctl);
1710 static inline int obd_quotactl(struct obd_export *exp,
1711 struct obd_quotactl *oqctl)
1716 EXP_CHECK_DT_OP(exp, quotactl);
1717 EXP_COUNTER_INCREMENT(exp, quotactl);
1719 rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl);
1723 static inline int obd_health_check(const struct lu_env *env,
1724 struct obd_device *obd)
1726 /* returns: 0 on healthy
1727 * >0 on unhealthy + reason code/flag
1728 * however the only suppored reason == 1 right now
1729 * We'll need to define some better reasons
1730 * or flags in the future.
1736 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1737 if (obd == NULL || !OBT(obd)) {
1738 CERROR("cleaned up obd\n");
1739 RETURN(-EOPNOTSUPP);
1741 if (!obd->obd_set_up || obd->obd_stopping)
1743 if (!OBP(obd, health_check))
1746 rc = OBP(obd, health_check)(env, obd);
1750 static inline int obd_register_observer(struct obd_device *obd,
1751 struct obd_device *observer)
1755 down_write(&obd->obd_observer_link_sem);
1756 if (obd->obd_observer && observer) {
1757 up_write(&obd->obd_observer_link_sem);
1760 obd->obd_observer = observer;
1761 up_write(&obd->obd_observer_link_sem);
1765 static inline int obd_pin_observer(struct obd_device *obd,
1766 struct obd_device **observer)
1769 down_read(&obd->obd_observer_link_sem);
1770 if (!obd->obd_observer) {
1772 up_read(&obd->obd_observer_link_sem);
1775 *observer = obd->obd_observer;
1779 static inline int obd_unpin_observer(struct obd_device *obd)
1782 up_read(&obd->obd_observer_link_sem);
1787 static inline int obd_register_page_removal_cb(struct obd_export *exp,
1788 obd_page_removal_cb_t cb,
1789 obd_pin_extent_cb pin_cb)
1794 OBD_CHECK_DT_OP(exp->exp_obd, register_page_removal_cb, 0);
1795 OBD_COUNTER_INCREMENT(exp->exp_obd, register_page_removal_cb);
1797 rc = OBP(exp->exp_obd, register_page_removal_cb)(exp, cb, pin_cb);
1801 static inline int obd_unregister_page_removal_cb(struct obd_export *exp,
1802 obd_page_removal_cb_t cb)
1807 OBD_CHECK_DT_OP(exp->exp_obd, unregister_page_removal_cb, 0);
1808 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_page_removal_cb);
1810 rc = OBP(exp->exp_obd, unregister_page_removal_cb)(exp, cb);
1814 static inline int obd_register_lock_cancel_cb(struct obd_export *exp,
1815 obd_lock_cancel_cb cb)
1820 OBD_CHECK_DT_OP(exp->exp_obd, register_lock_cancel_cb, 0);
1821 OBD_COUNTER_INCREMENT(exp->exp_obd, register_lock_cancel_cb);
1823 rc = OBP(exp->exp_obd, register_lock_cancel_cb)(exp, cb);
1827 static inline int obd_unregister_lock_cancel_cb(struct obd_export *exp,
1828 obd_lock_cancel_cb cb)
1833 OBD_CHECK_DT_OP(exp->exp_obd, unregister_lock_cancel_cb, 0);
1834 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_lock_cancel_cb);
1836 rc = OBP(exp->exp_obd, unregister_lock_cancel_cb)(exp, cb);
1841 /* metadata helpers */
1842 static inline int md_getstatus(struct obd_export *exp,
1843 struct lu_fid *fid, struct obd_capa **pc)
1848 EXP_CHECK_MD_OP(exp, getstatus);
1849 EXP_MD_COUNTER_INCREMENT(exp, getstatus);
1850 rc = MDP(exp->exp_obd, getstatus)(exp, fid, pc);
1854 static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data,
1855 struct ptlrpc_request **request)
1859 EXP_CHECK_MD_OP(exp, getattr);
1860 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1861 rc = MDP(exp->exp_obd, getattr)(exp, op_data, request);
1865 static inline int md_null_inode(struct obd_export *exp,
1866 const struct lu_fid *fid)
1870 EXP_CHECK_MD_OP(exp, null_inode);
1871 EXP_MD_COUNTER_INCREMENT(exp, null_inode);
1872 rc = MDP(exp->exp_obd, null_inode)(exp, fid);
1876 static inline int md_find_cbdata(struct obd_export *exp,
1877 const struct lu_fid *fid,
1878 ldlm_iterator_t it, void *data)
1882 EXP_CHECK_MD_OP(exp, find_cbdata);
1883 EXP_MD_COUNTER_INCREMENT(exp, find_cbdata);
1884 rc = MDP(exp->exp_obd, find_cbdata)(exp, fid, it, data);
1888 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1889 struct md_open_data *mod,
1890 struct ptlrpc_request **request)
1894 EXP_CHECK_MD_OP(exp, close);
1895 EXP_MD_COUNTER_INCREMENT(exp, close);
1896 rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
1900 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1901 const void *data, int datalen, int mode, __u32 uid,
1902 __u32 gid, cfs_cap_t cap_effective, __u64 rdev,
1903 struct ptlrpc_request **request)
1907 EXP_CHECK_MD_OP(exp, create);
1908 EXP_MD_COUNTER_INCREMENT(exp, create);
1909 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1910 uid, gid, cap_effective, rdev, request);
1914 static inline int md_done_writing(struct obd_export *exp,
1915 struct md_op_data *op_data,
1916 struct md_open_data *mod)
1920 EXP_CHECK_MD_OP(exp, done_writing);
1921 EXP_MD_COUNTER_INCREMENT(exp, done_writing);
1922 rc = MDP(exp->exp_obd, done_writing)(exp, op_data, mod);
1926 static inline int md_enqueue(struct obd_export *exp,
1927 struct ldlm_enqueue_info *einfo,
1928 struct lookup_intent *it,
1929 struct md_op_data *op_data,
1930 struct lustre_handle *lockh,
1931 void *lmm, int lmmsize,
1932 struct ptlrpc_request **req,
1933 int extra_lock_flags)
1937 EXP_CHECK_MD_OP(exp, enqueue);
1938 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1939 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, it, op_data, lockh,
1940 lmm, lmmsize, req, extra_lock_flags);
1944 static inline int md_getattr_name(struct obd_export *exp,
1945 struct md_op_data *op_data,
1946 struct ptlrpc_request **request)
1950 EXP_CHECK_MD_OP(exp, getattr_name);
1951 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1952 rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request);
1956 static inline int md_intent_lock(struct obd_export *exp,
1957 struct md_op_data *op_data, void *lmm,
1958 int lmmsize, struct lookup_intent *it,
1959 int lookup_flags, struct ptlrpc_request **reqp,
1960 ldlm_blocking_callback cb_blocking,
1961 __u64 extra_lock_flags)
1965 EXP_CHECK_MD_OP(exp, intent_lock);
1966 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1967 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, lmm, lmmsize,
1968 it, lookup_flags, reqp, cb_blocking,
1973 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1974 struct ptlrpc_request **request)
1978 EXP_CHECK_MD_OP(exp, link);
1979 EXP_MD_COUNTER_INCREMENT(exp, link);
1980 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1984 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1985 const char *old, int oldlen, const char *new,
1986 int newlen, struct ptlrpc_request **request)
1990 EXP_CHECK_MD_OP(exp, rename);
1991 EXP_MD_COUNTER_INCREMENT(exp, rename);
1992 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
1997 static inline int md_is_subdir(struct obd_export *exp,
1998 const struct lu_fid *pfid,
1999 const struct lu_fid *cfid,
2000 struct ptlrpc_request **request)
2004 EXP_CHECK_MD_OP(exp, is_subdir);
2005 EXP_MD_COUNTER_INCREMENT(exp, is_subdir);
2006 rc = MDP(exp->exp_obd, is_subdir)(exp, pfid, cfid, request);
2010 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
2011 void *ea, int ealen, void *ea2, int ea2len,
2012 struct ptlrpc_request **request,
2013 struct md_open_data **mod)
2017 EXP_CHECK_MD_OP(exp, setattr);
2018 EXP_MD_COUNTER_INCREMENT(exp, setattr);
2019 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen,
2020 ea2, ea2len, request, mod);
2024 static inline int md_sync(struct obd_export *exp, const struct lu_fid *fid,
2025 struct obd_capa *oc, struct ptlrpc_request **request)
2029 EXP_CHECK_MD_OP(exp, sync);
2030 EXP_MD_COUNTER_INCREMENT(exp, sync);
2031 rc = MDP(exp->exp_obd, sync)(exp, fid, oc, request);
2035 static inline int md_readpage(struct obd_export *exp, struct md_op_data *opdata,
2036 struct page **pages,
2037 struct ptlrpc_request **request)
2041 EXP_CHECK_MD_OP(exp, readpage);
2042 EXP_MD_COUNTER_INCREMENT(exp, readpage);
2043 rc = MDP(exp->exp_obd, readpage)(exp, opdata, pages, request);
2047 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
2048 struct ptlrpc_request **request)
2052 EXP_CHECK_MD_OP(exp, unlink);
2053 EXP_MD_COUNTER_INCREMENT(exp, unlink);
2054 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
2058 static inline int md_get_lustre_md(struct obd_export *exp,
2059 struct ptlrpc_request *req,
2060 struct obd_export *dt_exp,
2061 struct obd_export *md_exp,
2062 struct lustre_md *md)
2065 EXP_CHECK_MD_OP(exp, get_lustre_md);
2066 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
2067 RETURN(MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md));
2070 static inline int md_free_lustre_md(struct obd_export *exp,
2071 struct lustre_md *md)
2074 EXP_CHECK_MD_OP(exp, free_lustre_md);
2075 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
2076 RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md));
2079 static inline int md_setxattr(struct obd_export *exp,
2080 const struct lu_fid *fid, struct obd_capa *oc,
2081 obd_valid valid, const char *name,
2082 const char *input, int input_size,
2083 int output_size, int flags, __u32 suppgid,
2084 struct ptlrpc_request **request)
2087 EXP_CHECK_MD_OP(exp, setxattr);
2088 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
2089 RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, oc, valid, name, input,
2090 input_size, output_size, flags,
2094 static inline int md_getxattr(struct obd_export *exp,
2095 const struct lu_fid *fid, struct obd_capa *oc,
2096 obd_valid valid, const char *name,
2097 const char *input, int input_size,
2098 int output_size, int flags,
2099 struct ptlrpc_request **request)
2102 EXP_CHECK_MD_OP(exp, getxattr);
2103 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
2104 RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, oc, valid, name, input,
2105 input_size, output_size, flags,
2109 static inline int md_set_open_replay_data(struct obd_export *exp,
2110 struct obd_client_handle *och,
2111 struct ptlrpc_request *open_req)
2114 EXP_CHECK_MD_OP(exp, set_open_replay_data);
2115 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
2116 RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, open_req));
2119 static inline int md_clear_open_replay_data(struct obd_export *exp,
2120 struct obd_client_handle *och)
2123 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
2124 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
2125 RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och));
2128 static inline int md_set_lock_data(struct obd_export *exp,
2129 __u64 *lockh, void *data, __u64 *bits)
2132 EXP_CHECK_MD_OP(exp, set_lock_data);
2133 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
2134 RETURN(MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits));
2137 static inline int md_cancel_unused(struct obd_export *exp,
2138 const struct lu_fid *fid,
2139 ldlm_policy_data_t *policy,
2141 ldlm_cancel_flags_t flags,
2147 EXP_CHECK_MD_OP(exp, cancel_unused);
2148 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
2150 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
2155 static inline ldlm_mode_t md_lock_match(struct obd_export *exp, __u64 flags,
2156 const struct lu_fid *fid,
2158 ldlm_policy_data_t *policy,
2160 struct lustre_handle *lockh)
2163 EXP_CHECK_MD_OP(exp, lock_match);
2164 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
2165 RETURN(MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
2166 policy, mode, lockh));
2169 static inline int md_init_ea_size(struct obd_export *exp, int easize,
2170 int def_asize, int cookiesize)
2173 EXP_CHECK_MD_OP(exp, init_ea_size);
2174 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
2175 RETURN(MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
2179 static inline int md_get_remote_perm(struct obd_export *exp,
2180 const struct lu_fid *fid,
2181 struct obd_capa *oc, __u32 suppgid,
2182 struct ptlrpc_request **request)
2185 EXP_CHECK_MD_OP(exp, get_remote_perm);
2186 EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm);
2187 RETURN(MDP(exp->exp_obd, get_remote_perm)(exp, fid, oc, suppgid,
2191 static inline int md_renew_capa(struct obd_export *exp, struct obd_capa *ocapa,
2196 EXP_CHECK_MD_OP(exp, renew_capa);
2197 EXP_MD_COUNTER_INCREMENT(exp, renew_capa);
2198 rc = MDP(exp->exp_obd, renew_capa)(exp, ocapa, cb);
2202 static inline int md_unpack_capa(struct obd_export *exp,
2203 struct ptlrpc_request *req,
2204 const struct req_msg_field *field,
2205 struct obd_capa **oc)
2209 EXP_CHECK_MD_OP(exp, unpack_capa);
2210 EXP_MD_COUNTER_INCREMENT(exp, unpack_capa);
2211 rc = MDP(exp->exp_obd, unpack_capa)(exp, req, field, oc);
2215 static inline int md_intent_getattr_async(struct obd_export *exp,
2216 struct md_enqueue_info *minfo,
2217 struct ldlm_enqueue_info *einfo)
2221 EXP_CHECK_MD_OP(exp, intent_getattr_async);
2222 EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
2223 rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo, einfo);
2227 static inline int md_revalidate_lock(struct obd_export *exp,
2228 struct lookup_intent *it,
2229 struct lu_fid *fid, __u64 *bits)
2233 EXP_CHECK_MD_OP(exp, revalidate_lock);
2234 EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
2235 rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits);
2240 /* OBD Metadata Support */
2242 extern int obd_init_caches(void);
2243 extern void obd_cleanup_caches(void);
2245 /* support routines */
2246 extern struct kmem_cache *obdo_cachep;
2248 #define OBDO_ALLOC(ptr) \
2250 OBD_SLAB_ALLOC_PTR_GFP((ptr), obdo_cachep, __GFP_IO); \
2253 #define OBDO_FREE(ptr) \
2255 OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
2259 static inline void obdo2fid(struct obdo *oa, struct lu_fid *fid)
2261 /* something here */
2264 static inline void fid2obdo(struct lu_fid *fid, struct obdo *oa)
2266 /* something here */
2269 typedef int (*register_lwp_cb)(void *data);
2271 struct lwp_register_item {
2272 struct obd_export **lri_exp;
2273 register_lwp_cb lri_cb_func;
2275 cfs_list_t lri_list;
2276 char lri_name[MTI_NAME_MAXLEN];
2279 /* I'm as embarrassed about this as you are.
2281 * <shaver> // XXX do not look into _superhack with remaining eye
2282 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
2283 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
2286 #ifdef HAVE_SERVER_SUPPORT
2287 int lustre_register_lwp_item(const char *lwpname, struct obd_export **exp,
2288 register_lwp_cb cb_func, void *cb_data);
2289 void lustre_deregister_lwp_item(struct obd_export **exp);
2290 int tgt_name2lwpname(const char *tgt_name, char *lwp_name);
2291 #endif /* HAVE_SERVER_SUPPORT */
2294 extern void obd_sysctl_init (void);
2295 extern void obd_sysctl_clean (void);
2298 typedef __u8 class_uuid_t[16];
2299 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
2302 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
2303 int class_add_uuid(const char *uuid, __u64 nid);
2304 int class_del_uuid (const char *uuid);
2305 int class_check_uuid(struct obd_uuid *uuid, __u64 nid);
2306 void class_init_uuidlist(void);
2307 void class_exit_uuidlist(void);
2310 int mea_name2idx(struct lmv_stripe_md *mea, const char *name, int namelen);
2311 int raw_name2idx(int hashtype, int count, const char *name, int namelen);
2314 #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
2316 #endif /* __LINUX_OBD_CLASS_H */