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_seq_vars *module_vars,
91 #ifndef HAVE_ONLY_PROCFS_SEQ
92 struct lprocfs_vars *,
95 struct lu_device_type *ldt);
96 int class_unregister_type(const char *nm);
98 struct obd_device *class_newdev(const char *type_name, const char *name);
99 void class_release_dev(struct obd_device *obd);
101 int class_name2dev(const char *name);
102 struct obd_device *class_name2obd(const char *name);
103 int class_uuid2dev(struct obd_uuid *uuid);
104 struct obd_device *class_uuid2obd(struct obd_uuid *uuid);
105 void class_obd_list(void);
106 struct obd_device * class_find_client_obd(struct obd_uuid *tgt_uuid,
107 const char * typ_name,
108 struct obd_uuid *grp_uuid);
109 struct obd_device * class_devices_in_group(struct obd_uuid *grp_uuid,
111 struct obd_device * class_num2obd(int num);
112 int get_devices_count(void);
114 int class_notify_sptlrpc_conf(const char *fsname, int namelen);
116 char *obd_export_nid2str(struct obd_export *exp);
118 int obd_export_evict_by_nid(struct obd_device *obd, const char *nid);
119 int obd_export_evict_by_uuid(struct obd_device *obd, const char *uuid);
120 int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep);
122 int obd_zombie_impexp_init(void);
123 void obd_zombie_impexp_stop(void);
124 void obd_zombie_impexp_cull(void);
125 void obd_zombie_barrier(void);
126 void obd_exports_barrier(struct obd_device *obd);
127 int kuc_len(int payload_len);
128 struct kuc_hdr * kuc_ptr(void *p);
129 int kuc_ispayload(void *p);
130 void *kuc_alloc(int payload_len, int transport, int type);
131 void kuc_free(void *p, int payload_len);
135 typedef int (*llog_cb_t)(const struct lu_env *, struct llog_handle *,
136 struct llog_rec_hdr *, void *);
138 struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg,
139 const char *new_name);
140 int class_process_config(struct lustre_cfg *lcfg);
141 #ifndef HAVE_ONLY_PROCFS_SEQ
142 int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
143 struct lustre_cfg *lcfg, void *data);
145 int class_process_proc_seq_param(char *prefix, struct lprocfs_seq_vars *lvars,
146 struct lustre_cfg *lcfg, void *data);
147 int class_attach(struct lustre_cfg *lcfg);
148 int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
149 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg);
150 int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg);
151 struct obd_device *class_incref(struct obd_device *obd,
152 const char *scope, const void *source);
153 void class_decref(struct obd_device *obd,
154 const char *scope, const void *source);
155 void dump_exports(struct obd_device *obd, int locks);
156 int class_config_llog_handler(const struct lu_env *env,
157 struct llog_handle *handle,
158 struct llog_rec_hdr *rec, void *data);
159 int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg);
160 int class_add_uuid(const char *uuid, __u64 nid);
162 #define CFG_F_START 0x01 /* Set when we start updating from a log */
163 #define CFG_F_MARKER 0x02 /* We are within a maker */
164 #define CFG_F_SKIP 0x04 /* We should ignore this cfg command */
165 #define CFG_F_COMPAT146 0x08 /* Allow old-style logs */
166 #define CFG_F_EXCLUDE 0x10 /* OST exclusion list */
168 /* Passed as data param to class_config_parse_llog */
169 struct config_llog_instance {
172 struct super_block *cfg_sb;
173 struct obd_uuid cfg_uuid;
174 llog_cb_t cfg_callback;
175 int cfg_last_idx; /* for partial llog processing */
178 int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
179 char *name, struct config_llog_instance *cfg);
180 int class_config_dump_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
181 char *name, struct config_llog_instance *cfg);
185 CONFIG_T_SPTLRPC = 1,
186 CONFIG_T_RECOVER = 2,
191 #define PARAMS_FILENAME "params"
192 #define LCTL_UPCALL "lctl"
194 /* list of active configuration logs */
195 struct config_llog_data {
196 struct ldlm_res_id cld_resid;
197 struct config_llog_instance cld_cfg;
198 cfs_list_t cld_list_chain;
199 cfs_atomic_t cld_refcount;
200 struct config_llog_data *cld_sptlrpc;/* depended sptlrpc log */
201 struct config_llog_data *cld_params; /* common parameters log */
202 struct config_llog_data *cld_recover;/* imperative recover log */
203 struct obd_export *cld_mgcexp;
204 struct mutex cld_lock;
206 unsigned int cld_stopping:1, /* we were told to stop
208 cld_lostlock:1; /* lock not requeued */
212 struct lustre_profile {
219 struct lustre_profile *class_get_profile(const char * prof);
220 void class_del_profile(const char *prof);
221 void class_del_profiles(void);
223 #if LUSTRE_TRACKS_LOCK_EXP_REFS
225 void __class_export_add_lock_ref(struct obd_export *, struct ldlm_lock *);
226 void __class_export_del_lock_ref(struct obd_export *, struct ldlm_lock *);
227 extern void (*class_export_dump_hook)(struct obd_export *);
231 #define __class_export_add_lock_ref(exp, lock) do {} while(0)
232 #define __class_export_del_lock_ref(exp, lock) do {} while(0)
236 #define class_export_rpc_inc(exp) \
238 cfs_atomic_inc(&(exp)->exp_rpc_count); \
239 CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \
240 (exp), cfs_atomic_read(&(exp)->exp_rpc_count)); \
243 #define class_export_rpc_dec(exp) \
245 LASSERT_ATOMIC_POS(&exp->exp_rpc_count); \
246 cfs_atomic_dec(&(exp)->exp_rpc_count); \
247 CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \
248 (exp), cfs_atomic_read(&(exp)->exp_rpc_count)); \
251 #define class_export_lock_get(exp, lock) \
253 cfs_atomic_inc(&(exp)->exp_locks_count); \
254 __class_export_add_lock_ref(exp, lock); \
255 CDEBUG(D_INFO, "lock GETting export %p : new locks_count %d\n", \
256 (exp), cfs_atomic_read(&(exp)->exp_locks_count)); \
257 class_export_get(exp); \
260 #define class_export_lock_put(exp, lock) \
262 LASSERT_ATOMIC_POS(&exp->exp_locks_count); \
263 cfs_atomic_dec(&(exp)->exp_locks_count); \
264 __class_export_del_lock_ref(exp, lock); \
265 CDEBUG(D_INFO, "lock PUTting export %p : new locks_count %d\n", \
266 (exp), cfs_atomic_read(&(exp)->exp_locks_count)); \
267 class_export_put(exp); \
270 #define class_export_cb_get(exp) \
272 cfs_atomic_inc(&(exp)->exp_cb_count); \
273 CDEBUG(D_INFO, "callback GETting export %p : new cb_count %d\n",\
274 (exp), cfs_atomic_read(&(exp)->exp_cb_count)); \
275 class_export_get(exp); \
278 #define class_export_cb_put(exp) \
280 LASSERT_ATOMIC_POS(&exp->exp_cb_count); \
281 cfs_atomic_dec(&(exp)->exp_cb_count); \
282 CDEBUG(D_INFO, "callback PUTting export %p : new cb_count %d\n",\
283 (exp), cfs_atomic_read(&(exp)->exp_cb_count)); \
284 class_export_put(exp); \
288 struct obd_export *class_export_get(struct obd_export *exp);
289 void class_export_put(struct obd_export *exp);
290 struct obd_export *class_new_export(struct obd_device *obddev,
291 struct obd_uuid *cluuid);
292 void class_unlink_export(struct obd_export *exp);
294 struct obd_import *class_import_get(struct obd_import *);
295 void class_import_put(struct obd_import *);
296 struct obd_import *class_new_import(struct obd_device *obd);
297 void class_destroy_import(struct obd_import *exp);
299 struct obd_type *class_search_type(const char *name);
300 struct obd_type *class_get_type(const char *name);
301 void class_put_type(struct obd_type *type);
302 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
303 struct obd_uuid *cluuid);
304 int class_disconnect(struct obd_export *exp);
305 void class_fail_export(struct obd_export *exp);
306 int class_connected_export(struct obd_export *exp);
307 void class_disconnect_exports(struct obd_device *obddev);
308 int class_manual_cleanup(struct obd_device *obd);
309 void class_disconnect_stale_exports(struct obd_device *,
310 int (*test_export)(struct obd_export *));
311 static inline enum obd_option exp_flags_from_obd(struct obd_device *obd)
313 return ((obd->obd_fail ? OBD_OPT_FAILOVER : 0) |
314 (obd->obd_force ? OBD_OPT_FORCE : 0) |
315 (obd->obd_abort_recovery ? OBD_OPT_ABORT_RECOV : 0) |
319 #ifdef HAVE_SERVER_SUPPORT
320 static inline struct lu_target *class_exp2tgt(struct obd_export *exp)
322 LASSERT(exp->exp_obd);
323 return exp->exp_obd->u.obt.obt_lut;
326 static inline struct lr_server_data *class_server_data(struct obd_device *obd)
328 LASSERT(obd->u.obt.obt_lut);
329 return &obd->u.obt.obt_lut->lut_lsd;
333 void obdo_cpy_md(struct obdo *dst, struct obdo *src, obd_flag valid);
334 void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj);
335 void obdo_from_iattr(struct obdo *oa, struct iattr *attr,
336 unsigned int ia_valid);
337 void iattr_from_obdo(struct iattr *attr, struct obdo *oa, obd_flag valid);
338 void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, obd_flag valid);
339 void obdo_from_md(struct obdo *oa, struct md_op_data *op_data,
342 void obdo_cpu_to_le(struct obdo *dobdo, struct obdo *sobdo);
343 void obdo_le_to_cpu(struct obdo *dobdo, struct obdo *sobdo);
345 #define OBT(dev) (dev)->obd_type
346 #define OBP(dev, op) (dev)->obd_type->typ_dt_ops->o_ ## op
347 #define MDP(dev, op) (dev)->obd_type->typ_md_ops->m_ ## op
348 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
350 /* Ensure obd_setup: used for cleanup which must be called
351 while obd is stopping */
352 #define OBD_CHECK_DEV(obd) \
355 CERROR("NULL device\n"); \
360 /* ensure obd_setup and !obd_stopping */
361 #define OBD_CHECK_DEV_ACTIVE(obd) \
363 OBD_CHECK_DEV(obd); \
364 if (!(obd)->obd_set_up || (obd)->obd_stopping) { \
365 CERROR("Device %d not setup\n", \
373 #define OBD_COUNTER_OFFSET(op) \
374 ((offsetof(struct obd_ops, o_ ## op) - \
375 offsetof(struct obd_ops, o_iocontrol)) \
376 / sizeof(((struct obd_ops *)NULL)->o_iocontrol))
378 /* The '- 1' below is for o_owner. */
379 #define NUM_OBD_STATS \
380 (sizeof(struct obd_ops) / \
381 sizeof(((struct obd_ops *)NULL)->o_iocontrol) - 1)
383 #define OBD_COUNTER_INCREMENT(obd, op) \
384 lprocfs_counter_incr((obd)->obd_stats, \
385 (obd)->obd_cntr_base + OBD_COUNTER_OFFSET(op))
387 #define EXP_COUNTER_INCREMENT(exp, op) \
390 _off = (exp)->exp_obd->obd_cntr_base + OBD_COUNTER_OFFSET(op); \
391 lprocfs_counter_incr((exp)->exp_obd->obd_stats, _off); \
392 if ((exp)->exp_obd->obd_uses_nid_stats && \
393 (exp)->exp_nid_stats != NULL) \
394 lprocfs_counter_incr((exp)->exp_nid_stats->nid_stats, \
398 #define _MD_COUNTER_OFFSET(m_op) \
399 ((offsetof(struct md_ops, m_op) - \
400 offsetof(struct md_ops, MD_STATS_FIRST_OP)) / \
401 sizeof(((struct md_ops *)NULL)->MD_STATS_FIRST_OP))
403 #define MD_COUNTER_OFFSET(op) _MD_COUNTER_OFFSET(m_ ## op)
405 #define NUM_MD_STATS \
406 (_MD_COUNTER_OFFSET(MD_STATS_LAST_OP) - \
407 _MD_COUNTER_OFFSET(MD_STATS_FIRST_OP) + 1)
409 /* Note that we only increment md counters for ops whose offset is less
410 * than NUM_MD_STATS. This is explained in a comment in the definition
411 * of struct md_ops. */
412 #define EXP_MD_COUNTER_INCREMENT(exp, op) \
414 if (MD_COUNTER_OFFSET(op) < NUM_MD_STATS) \
415 lprocfs_counter_incr((exp)->exp_obd->obd_md_stats, \
416 (exp)->exp_obd->obd_md_cntr_base + \
417 MD_COUNTER_OFFSET(op)); \
421 #define OBD_COUNTER_OFFSET(op)
422 #define OBD_COUNTER_INCREMENT(obd, op)
423 #define EXP_COUNTER_INCREMENT(exp, op)
424 #define EXP_MD_COUNTER_INCREMENT(exp, op)
427 static inline int lprocfs_nid_ldlm_stats_init(struct nid_stat* tmp)
429 /* Always add in ldlm_stats */
430 tmp->nid_ldlm_stats = lprocfs_alloc_stats(LDLM_LAST_OPC - LDLM_FIRST_OPC
431 ,LPROCFS_STATS_FLAG_NOPERCPU);
432 if (tmp->nid_ldlm_stats == NULL)
435 lprocfs_init_ldlm_stats(tmp->nid_ldlm_stats);
437 return lprocfs_register_stats(tmp->nid_proc, "ldlm_stats",
438 tmp->nid_ldlm_stats);
441 #define EXP_CHECK_MD_OP(exp, op) \
443 if ((exp) == NULL) { \
444 CERROR("obd_" #op ": NULL export\n"); \
447 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
448 CERROR("obd_" #op ": cleaned up obd\n"); \
449 RETURN(-EOPNOTSUPP); \
451 if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
452 CERROR("obd_" #op ": dev %s/%d no operation\n", \
453 (exp)->exp_obd->obd_name, \
454 (exp)->exp_obd->obd_minor); \
455 RETURN(-EOPNOTSUPP); \
460 #define OBD_CHECK_DT_OP(obd, op, err) \
462 if (!OBT(obd) || !OBP((obd), op)) { \
464 CERROR("obd_" #op ": dev %d no operation\n", \
470 #define EXP_CHECK_DT_OP(exp, op) \
472 if ((exp) == NULL) { \
473 CERROR("obd_" #op ": NULL export\n"); \
476 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
477 CERROR("obd_" #op ": cleaned up obd\n"); \
478 RETURN(-EOPNOTSUPP); \
480 if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
481 CERROR("obd_" #op ": dev %d no operation\n", \
482 (exp)->exp_obd->obd_minor); \
483 RETURN(-EOPNOTSUPP); \
487 #define CTXT_CHECK_OP(ctxt, op, err) \
489 if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
491 CERROR("lop_" #op ": dev %d no operation\n", \
492 ctxt->loc_obd->obd_minor); \
497 static inline int class_devno_max(void)
499 return MAX_OBD_DEVICES;
502 static inline int obd_get_info(const struct lu_env *env,
503 struct obd_export *exp, __u32 keylen,
504 void *key, __u32 *vallen, void *val,
505 struct lov_stripe_md *lsm)
510 EXP_CHECK_DT_OP(exp, get_info);
511 EXP_COUNTER_INCREMENT(exp, get_info);
513 rc = OBP(exp->exp_obd, get_info)(env, exp, keylen, key, vallen, val,
518 static inline int obd_set_info_async(const struct lu_env *env,
519 struct obd_export *exp, obd_count keylen,
520 void *key, obd_count vallen, void *val,
521 struct ptlrpc_request_set *set)
526 EXP_CHECK_DT_OP(exp, set_info_async);
527 EXP_COUNTER_INCREMENT(exp, set_info_async);
529 rc = OBP(exp->exp_obd, set_info_async)(env, exp, keylen, key, vallen,
535 * obd-lu integration.
537 * Functionality is being moved into new lu_device-based layering, but some
538 * pieces of configuration process are still based on obd devices.
540 * Specifically, lu_device_type_operations::ldto_device_alloc() methods fully
541 * subsume ->o_setup() methods of obd devices they replace. The same for
542 * lu_device_operations::ldo_process_config() and ->o_process_config(). As a
543 * result, obd_setup() and obd_process_config() branch and call one XOR
546 * Yet neither lu_device_type_operations::ldto_device_fini() nor
547 * lu_device_type_operations::ldto_device_free() fully implement the
548 * functionality of ->o_precleanup() and ->o_cleanup() they override. Hence,
549 * obd_precleanup() and obd_cleanup() call both lu_device and obd operations.
552 #define DECLARE_LU_VARS(ldt, d) \
553 struct lu_device_type *ldt; \
556 static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
559 DECLARE_LU_VARS(ldt, d);
562 ldt = obd->obd_type->typ_lu;
564 struct lu_context session_ctx;
566 lu_context_init(&session_ctx, LCT_SESSION | LCT_SERVER_SESSION);
567 session_ctx.lc_thread = NULL;
568 lu_context_enter(&session_ctx);
570 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
572 env.le_ses = &session_ctx;
573 d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
582 lu_context_exit(&session_ctx);
583 lu_context_fini(&session_ctx);
586 OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
587 OBD_COUNTER_INCREMENT(obd, setup);
588 rc = OBP(obd, setup)(obd, cfg);
593 static inline int obd_precleanup(struct obd_device *obd,
594 enum obd_cleanup_stage cleanup_stage)
597 DECLARE_LU_VARS(ldt, d);
601 ldt = obd->obd_type->typ_lu;
603 if (ldt != NULL && d != NULL) {
604 if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
607 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
609 ldt->ldt_ops->ldto_device_fini(&env, d);
614 OBD_CHECK_DT_OP(obd, precleanup, 0);
615 OBD_COUNTER_INCREMENT(obd, precleanup);
617 rc = OBP(obd, precleanup)(obd, cleanup_stage);
621 static inline int obd_cleanup(struct obd_device *obd)
624 DECLARE_LU_VARS(ldt, d);
629 ldt = obd->obd_type->typ_lu;
631 if (ldt != NULL && d != NULL) {
634 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
636 ldt->ldt_ops->ldto_device_free(&env, d);
638 obd->obd_lu_dev = NULL;
641 OBD_CHECK_DT_OP(obd, cleanup, 0);
642 OBD_COUNTER_INCREMENT(obd, cleanup);
644 rc = OBP(obd, cleanup)(obd);
648 static inline void obd_cleanup_client_import(struct obd_device *obd)
652 /* If we set up but never connected, the
653 client import will not have been cleaned. */
654 down_write(&obd->u.cli.cl_sem);
655 if (obd->u.cli.cl_import) {
656 struct obd_import *imp;
657 imp = obd->u.cli.cl_import;
658 CDEBUG(D_CONFIG, "%s: client import never connected\n",
660 ptlrpc_invalidate_import(imp);
661 if (imp->imp_rq_pool) {
662 ptlrpc_free_rq_pool(imp->imp_rq_pool);
663 imp->imp_rq_pool = NULL;
665 client_destroy_import(imp);
666 obd->u.cli.cl_import = NULL;
668 up_write(&obd->u.cli.cl_sem);
674 obd_process_config(struct obd_device *obd, int datalen, void *data)
677 DECLARE_LU_VARS(ldt, d);
682 obd->obd_process_conf = 1;
683 ldt = obd->obd_type->typ_lu;
685 if (ldt != NULL && d != NULL) {
688 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
690 rc = d->ld_ops->ldo_process_config(&env, d, data);
694 OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
695 rc = OBP(obd, process_config)(obd, datalen, data);
697 OBD_COUNTER_INCREMENT(obd, process_config);
698 obd->obd_process_conf = 0;
703 /* Pack an in-memory MD struct for storage on disk.
704 * Returns +ve size of packed MD (0 for free), or -ve error.
706 * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL).
707 * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed.
708 * If @*disk_tgt == NULL, it will be allocated
710 static inline int obd_packmd(struct obd_export *exp,
711 struct lov_mds_md **disk_tgt,
712 struct lov_stripe_md *mem_src)
717 EXP_CHECK_DT_OP(exp, packmd);
718 EXP_COUNTER_INCREMENT(exp, packmd);
720 rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src);
724 static inline int obd_size_diskmd(struct obd_export *exp,
725 struct lov_stripe_md *mem_src)
727 return obd_packmd(exp, NULL, mem_src);
730 /* helper functions */
731 static inline int obd_alloc_diskmd(struct obd_export *exp,
732 struct lov_mds_md **disk_tgt)
735 LASSERT(*disk_tgt == NULL);
736 return obd_packmd(exp, disk_tgt, NULL);
739 static inline int obd_free_diskmd(struct obd_export *exp,
740 struct lov_mds_md **disk_tgt)
745 * LU-2590, for caller's convenience, *disk_tgt could be host
746 * endianness, it needs swab to LE if necessary, while just
747 * lov_mds_md header needs it for figuring out how much memory
750 if ((cpu_to_le32(LOV_MAGIC) != LOV_MAGIC) &&
751 (((*disk_tgt)->lmm_magic == LOV_MAGIC_V1) ||
752 ((*disk_tgt)->lmm_magic == LOV_MAGIC_V3)))
753 lustre_swab_lov_mds_md(*disk_tgt);
754 return obd_packmd(exp, disk_tgt, NULL);
757 /* Unpack an MD struct from disk to in-memory format.
758 * Returns +ve size of unpacked MD (0 for free), or -ve error.
760 * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL).
761 * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed.
762 * If @*mem_tgt == NULL, it will be allocated
764 static inline int obd_unpackmd(struct obd_export *exp,
765 struct lov_stripe_md **mem_tgt,
766 struct lov_mds_md *disk_src,
772 EXP_CHECK_DT_OP(exp, unpackmd);
773 EXP_COUNTER_INCREMENT(exp, unpackmd);
775 rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len);
779 /* helper functions */
780 static inline int obd_alloc_memmd(struct obd_export *exp,
781 struct lov_stripe_md **mem_tgt)
784 LASSERT(*mem_tgt == NULL);
785 return obd_unpackmd(exp, mem_tgt, NULL, 0);
788 static inline int obd_free_memmd(struct obd_export *exp,
789 struct lov_stripe_md **mem_tgt)
795 rc = obd_unpackmd(exp, mem_tgt, NULL, 0);
800 static inline int obd_precreate(struct obd_export *exp)
805 EXP_CHECK_DT_OP(exp, precreate);
806 OBD_COUNTER_INCREMENT(exp->exp_obd, precreate);
808 rc = OBP(exp->exp_obd, precreate)(exp);
812 static inline int obd_create_async(struct obd_export *exp,
813 struct obd_info *oinfo,
814 struct lov_stripe_md **ea,
815 struct obd_trans_info *oti)
820 EXP_CHECK_DT_OP(exp, create_async);
821 EXP_COUNTER_INCREMENT(exp, create_async);
823 rc = OBP(exp->exp_obd, create_async)(exp, oinfo, ea, oti);
827 static inline int obd_create(const struct lu_env *env, struct obd_export *exp,
828 struct obdo *obdo, struct lov_stripe_md **ea,
829 struct obd_trans_info *oti)
834 EXP_CHECK_DT_OP(exp, create);
835 EXP_COUNTER_INCREMENT(exp, create);
837 rc = OBP(exp->exp_obd, create)(env, exp, obdo, ea, oti);
841 static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp,
842 struct obdo *obdo, struct lov_stripe_md *ea,
843 struct obd_trans_info *oti,
844 struct obd_export *md_exp, void *capa)
849 EXP_CHECK_DT_OP(exp, destroy);
850 EXP_COUNTER_INCREMENT(exp, destroy);
852 rc = OBP(exp->exp_obd, destroy)(env, exp, obdo, ea, oti, md_exp, capa);
856 static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp,
857 struct obd_info *oinfo)
862 EXP_CHECK_DT_OP(exp, getattr);
863 EXP_COUNTER_INCREMENT(exp, getattr);
865 rc = OBP(exp->exp_obd, getattr)(env, exp, oinfo);
869 static inline int obd_getattr_async(struct obd_export *exp,
870 struct obd_info *oinfo,
871 struct ptlrpc_request_set *set)
876 EXP_CHECK_DT_OP(exp, getattr_async);
877 EXP_COUNTER_INCREMENT(exp, getattr_async);
879 rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set);
883 static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp,
884 struct obd_info *oinfo,
885 struct obd_trans_info *oti)
890 EXP_CHECK_DT_OP(exp, setattr);
891 EXP_COUNTER_INCREMENT(exp, setattr);
893 rc = OBP(exp->exp_obd, setattr)(env, exp, oinfo, oti);
897 /* This performs all the requests set init/wait/destroy actions. */
898 static inline int obd_setattr_rqset(struct obd_export *exp,
899 struct obd_info *oinfo,
900 struct obd_trans_info *oti)
902 struct ptlrpc_request_set *set = NULL;
906 EXP_CHECK_DT_OP(exp, setattr_async);
907 EXP_COUNTER_INCREMENT(exp, setattr_async);
909 set = ptlrpc_prep_set();
913 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
915 rc = ptlrpc_set_wait(set);
916 ptlrpc_set_destroy(set);
920 /* This adds all the requests into @set if @set != NULL, otherwise
921 all requests are sent asynchronously without waiting for response. */
922 static inline int obd_setattr_async(struct obd_export *exp,
923 struct obd_info *oinfo,
924 struct obd_trans_info *oti,
925 struct ptlrpc_request_set *set)
930 EXP_CHECK_DT_OP(exp, setattr_async);
931 EXP_COUNTER_INCREMENT(exp, setattr_async);
933 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
937 static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
940 struct obd_device *obd = imp->imp_obd;
944 OBD_CHECK_DEV_ACTIVE(obd);
945 OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
946 OBD_COUNTER_INCREMENT(obd, add_conn);
948 rc = OBP(obd, add_conn)(imp, uuid, priority);
952 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
954 struct obd_device *obd = imp->imp_obd;
958 OBD_CHECK_DEV_ACTIVE(obd);
959 OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
960 OBD_COUNTER_INCREMENT(obd, del_conn);
962 rc = OBP(obd, del_conn)(imp, uuid);
966 static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp)
968 struct obd_uuid *uuid;
971 OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL);
972 EXP_COUNTER_INCREMENT(exp, get_uuid);
974 uuid = OBP(exp->exp_obd, get_uuid)(exp);
978 /** Create a new /a exp on device /a obd for the uuid /a cluuid
979 * @param exp New export handle
980 * @param d Connect data, supported flags are set, flags also understood
981 * by obd are returned.
983 static inline int obd_connect(const struct lu_env *env,
984 struct obd_export **exp,struct obd_device *obd,
985 struct obd_uuid *cluuid,
986 struct obd_connect_data *data,
990 __u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
994 OBD_CHECK_DEV_ACTIVE(obd);
995 OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
996 OBD_COUNTER_INCREMENT(obd, connect);
998 rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata);
999 /* check that only subset is granted */
1000 LASSERT(ergo(data != NULL, (data->ocd_connect_flags & ocf) ==
1001 data->ocd_connect_flags));
1005 static inline int obd_reconnect(const struct lu_env *env,
1006 struct obd_export *exp,
1007 struct obd_device *obd,
1008 struct obd_uuid *cluuid,
1009 struct obd_connect_data *d,
1013 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
1018 OBD_CHECK_DEV_ACTIVE(obd);
1019 OBD_CHECK_DT_OP(obd, reconnect, 0);
1020 OBD_COUNTER_INCREMENT(obd, reconnect);
1022 rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
1023 /* check that only subset is granted */
1024 LASSERT(ergo(d != NULL,
1025 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
1029 static inline int obd_disconnect(struct obd_export *exp)
1034 EXP_CHECK_DT_OP(exp, disconnect);
1035 EXP_COUNTER_INCREMENT(exp, disconnect);
1037 rc = OBP(exp->exp_obd, disconnect)(exp);
1041 static inline int obd_fid_init(struct obd_device *obd, struct obd_export *exp,
1042 enum lu_cli_type type)
1047 OBD_CHECK_DT_OP(obd, fid_init, 0);
1048 OBD_COUNTER_INCREMENT(obd, fid_init);
1050 rc = OBP(obd, fid_init)(obd, exp, type);
1054 static inline int obd_fid_fini(struct obd_device *obd)
1059 OBD_CHECK_DT_OP(obd, fid_fini, 0);
1060 OBD_COUNTER_INCREMENT(obd, fid_fini);
1062 rc = OBP(obd, fid_fini)(obd);
1066 static inline int obd_fid_alloc(struct obd_export *exp,
1068 struct md_op_data *op_data)
1073 EXP_CHECK_DT_OP(exp, fid_alloc);
1074 EXP_COUNTER_INCREMENT(exp, fid_alloc);
1076 rc = OBP(exp->exp_obd, fid_alloc)(exp, fid, op_data);
1080 static inline int obd_ping(const struct lu_env *env, struct obd_export *exp)
1085 OBD_CHECK_DT_OP(exp->exp_obd, ping, 0);
1086 EXP_COUNTER_INCREMENT(exp, ping);
1088 rc = OBP(exp->exp_obd, ping)(env, exp);
1092 static inline int obd_pool_new(struct obd_device *obd, char *poolname)
1097 OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP);
1098 OBD_COUNTER_INCREMENT(obd, pool_new);
1100 rc = OBP(obd, pool_new)(obd, poolname);
1104 static inline int obd_pool_del(struct obd_device *obd, char *poolname)
1109 OBD_CHECK_DT_OP(obd, pool_del, -EOPNOTSUPP);
1110 OBD_COUNTER_INCREMENT(obd, pool_del);
1112 rc = OBP(obd, pool_del)(obd, poolname);
1116 static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname)
1121 OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP);
1122 OBD_COUNTER_INCREMENT(obd, pool_add);
1124 rc = OBP(obd, pool_add)(obd, poolname, ostname);
1128 static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname)
1133 OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP);
1134 OBD_COUNTER_INCREMENT(obd, pool_rem);
1136 rc = OBP(obd, pool_rem)(obd, poolname, ostname);
1140 static inline void obd_getref(struct obd_device *obd)
1143 if (OBT(obd) && OBP(obd, getref)) {
1144 OBD_COUNTER_INCREMENT(obd, getref);
1145 OBP(obd, getref)(obd);
1150 static inline void obd_putref(struct obd_device *obd)
1153 if (OBT(obd) && OBP(obd, putref)) {
1154 OBD_COUNTER_INCREMENT(obd, putref);
1155 OBP(obd, putref)(obd);
1160 static inline int obd_init_export(struct obd_export *exp)
1165 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1166 OBP((exp)->exp_obd, init_export))
1167 rc = OBP(exp->exp_obd, init_export)(exp);
1171 static inline int obd_destroy_export(struct obd_export *exp)
1174 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1175 OBP((exp)->exp_obd, destroy_export))
1176 OBP(exp->exp_obd, destroy_export)(exp);
1180 static inline int obd_extent_calc(struct obd_export *exp,
1181 struct lov_stripe_md *md,
1182 int cmd, obd_off *offset)
1186 EXP_CHECK_DT_OP(exp, extent_calc);
1187 rc = OBP(exp->exp_obd, extent_calc)(exp, md, cmd, offset);
1191 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1192 * If the cache is older than @max_age we will get a new value from the
1193 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1194 static inline int obd_statfs_async(struct obd_export *exp,
1195 struct obd_info *oinfo,
1197 struct ptlrpc_request_set *rqset)
1200 struct obd_device *obd;
1203 if (exp == NULL || exp->exp_obd == NULL)
1207 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1208 OBD_COUNTER_INCREMENT(obd, statfs);
1210 CDEBUG(D_SUPER, "%s: osfs %p age "LPU64", max_age "LPU64"\n",
1211 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
1212 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1213 rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset);
1215 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1216 " objects "LPU64"/"LPU64"\n",
1217 obd->obd_name, &obd->obd_osfs,
1218 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1219 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1220 spin_lock(&obd->obd_osfs_lock);
1221 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
1222 spin_unlock(&obd->obd_osfs_lock);
1223 oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
1224 if (oinfo->oi_cb_up)
1225 oinfo->oi_cb_up(oinfo, 0);
1230 static inline int obd_statfs_rqset(struct obd_export *exp,
1231 struct obd_statfs *osfs, __u64 max_age,
1234 struct ptlrpc_request_set *set = NULL;
1235 struct obd_info oinfo = { { { 0 } } };
1239 set = ptlrpc_prep_set();
1243 oinfo.oi_osfs = osfs;
1244 oinfo.oi_flags = flags;
1245 rc = obd_statfs_async(exp, &oinfo, max_age, set);
1247 rc = ptlrpc_set_wait(set);
1248 ptlrpc_set_destroy(set);
1252 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1253 * If the cache is older than @max_age we will get a new value from the
1254 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1255 static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
1256 struct obd_statfs *osfs, __u64 max_age,
1260 struct obd_device *obd = exp->exp_obd;
1266 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1267 OBD_COUNTER_INCREMENT(obd, statfs);
1269 CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n",
1270 obd->obd_osfs_age, max_age);
1271 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1272 rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
1274 spin_lock(&obd->obd_osfs_lock);
1275 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1276 obd->obd_osfs_age = cfs_time_current_64();
1277 spin_unlock(&obd->obd_osfs_lock);
1280 CDEBUG(D_SUPER, "%s: use %p cache blocks "LPU64"/"LPU64
1281 " objects "LPU64"/"LPU64"\n",
1282 obd->obd_name, &obd->obd_osfs,
1283 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1284 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1285 spin_lock(&obd->obd_osfs_lock);
1286 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1287 spin_unlock(&obd->obd_osfs_lock);
1292 static inline int obd_sync_rqset(struct obd_export *exp, struct obd_info *oinfo,
1293 obd_size start, obd_size end)
1295 struct ptlrpc_request_set *set = NULL;
1299 OBD_CHECK_DT_OP(exp->exp_obd, sync, -EOPNOTSUPP);
1300 EXP_COUNTER_INCREMENT(exp, sync);
1302 set = ptlrpc_prep_set();
1306 rc = OBP(exp->exp_obd, sync)(NULL, exp, oinfo, start, end, set);
1308 rc = ptlrpc_set_wait(set);
1309 ptlrpc_set_destroy(set);
1313 static inline int obd_sync(const struct lu_env *env, struct obd_export *exp,
1314 struct obd_info *oinfo, obd_size start, obd_size end,
1315 struct ptlrpc_request_set *set)
1320 OBD_CHECK_DT_OP(exp->exp_obd, sync, -EOPNOTSUPP);
1321 EXP_COUNTER_INCREMENT(exp, sync);
1323 rc = OBP(exp->exp_obd, sync)(env, exp, oinfo, start, end, set);
1327 static inline int obd_punch_rqset(struct obd_export *exp,
1328 struct obd_info *oinfo,
1329 struct obd_trans_info *oti)
1331 struct ptlrpc_request_set *set = NULL;
1335 EXP_CHECK_DT_OP(exp, punch);
1336 EXP_COUNTER_INCREMENT(exp, punch);
1338 set = ptlrpc_prep_set();
1342 rc = OBP(exp->exp_obd, punch)(NULL, exp, oinfo, oti, set);
1344 rc = ptlrpc_set_wait(set);
1345 ptlrpc_set_destroy(set);
1349 static inline int obd_punch(const struct lu_env *env, struct obd_export *exp,
1350 struct obd_info *oinfo, struct obd_trans_info *oti,
1351 struct ptlrpc_request_set *rqset)
1356 EXP_CHECK_DT_OP(exp, punch);
1357 EXP_COUNTER_INCREMENT(exp, punch);
1359 rc = OBP(exp->exp_obd, punch)(env, exp, oinfo, oti, rqset);
1363 static inline int obd_brw(int cmd, struct obd_export *exp,
1364 struct obd_info *oinfo, obd_count oa_bufs,
1365 struct brw_page *pg, struct obd_trans_info *oti)
1370 EXP_CHECK_DT_OP(exp, brw);
1371 EXP_COUNTER_INCREMENT(exp, brw);
1373 if (!(cmd & (OBD_BRW_RWMASK | OBD_BRW_CHECK))) {
1374 CERROR("obd_brw: cmd must be OBD_BRW_READ, OBD_BRW_WRITE, "
1375 "or OBD_BRW_CHECK\n");
1379 rc = OBP(exp->exp_obd, brw)(cmd, exp, oinfo, oa_bufs, pg, oti);
1383 static inline int obd_preprw(const struct lu_env *env, int cmd,
1384 struct obd_export *exp, struct obdo *oa,
1385 int objcount, struct obd_ioobj *obj,
1386 struct niobuf_remote *remote, int *pages,
1387 struct niobuf_local *local,
1388 struct obd_trans_info *oti,
1389 struct lustre_capa *capa)
1394 EXP_CHECK_DT_OP(exp, preprw);
1395 EXP_COUNTER_INCREMENT(exp, preprw);
1397 rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote,
1398 pages, local, oti, capa);
1402 static inline int obd_commitrw(const struct lu_env *env, int cmd,
1403 struct obd_export *exp, struct obdo *oa,
1404 int objcount, struct obd_ioobj *obj,
1405 struct niobuf_remote *rnb, int pages,
1406 struct niobuf_local *local,
1407 struct obd_trans_info *oti, int rc)
1411 EXP_CHECK_DT_OP(exp, commitrw);
1412 EXP_COUNTER_INCREMENT(exp, commitrw);
1414 rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj,
1415 rnb, pages, local, oti, rc);
1419 static inline int obd_merge_lvb(struct obd_export *exp,
1420 struct lov_stripe_md *lsm,
1421 struct ost_lvb *lvb, int kms_only)
1426 EXP_CHECK_DT_OP(exp, merge_lvb);
1427 EXP_COUNTER_INCREMENT(exp, merge_lvb);
1429 rc = OBP(exp->exp_obd, merge_lvb)(exp, lsm, lvb, kms_only);
1433 static inline int obd_adjust_kms(struct obd_export *exp,
1434 struct lov_stripe_md *lsm, obd_off size,
1440 EXP_CHECK_DT_OP(exp, adjust_kms);
1441 EXP_COUNTER_INCREMENT(exp, adjust_kms);
1443 rc = OBP(exp->exp_obd, adjust_kms)(exp, lsm, size, shrink);
1447 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1448 int len, void *karg, void *uarg)
1453 EXP_CHECK_DT_OP(exp, iocontrol);
1454 EXP_COUNTER_INCREMENT(exp, iocontrol);
1456 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1460 static inline int obd_enqueue_rqset(struct obd_export *exp,
1461 struct obd_info *oinfo,
1462 struct ldlm_enqueue_info *einfo)
1464 struct ptlrpc_request_set *set = NULL;
1468 EXP_CHECK_DT_OP(exp, enqueue);
1469 EXP_COUNTER_INCREMENT(exp, enqueue);
1471 set = ptlrpc_prep_set();
1475 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1477 rc = ptlrpc_set_wait(set);
1478 ptlrpc_set_destroy(set);
1482 static inline int obd_enqueue(struct obd_export *exp,
1483 struct obd_info *oinfo,
1484 struct ldlm_enqueue_info *einfo,
1485 struct ptlrpc_request_set *set)
1490 EXP_CHECK_DT_OP(exp, enqueue);
1491 EXP_COUNTER_INCREMENT(exp, enqueue);
1493 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1497 static inline int obd_change_cbdata(struct obd_export *exp,
1498 struct lov_stripe_md *lsm,
1499 ldlm_iterator_t it, void *data)
1504 EXP_CHECK_DT_OP(exp, change_cbdata);
1505 EXP_COUNTER_INCREMENT(exp, change_cbdata);
1507 rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data);
1511 static inline int obd_find_cbdata(struct obd_export *exp,
1512 struct lov_stripe_md *lsm,
1513 ldlm_iterator_t it, void *data)
1518 EXP_CHECK_DT_OP(exp, find_cbdata);
1519 EXP_COUNTER_INCREMENT(exp, find_cbdata);
1521 rc = OBP(exp->exp_obd, find_cbdata)(exp, lsm, it, data);
1525 static inline int obd_cancel(struct obd_export *exp,
1526 struct lov_stripe_md *ea, __u32 mode,
1527 struct lustre_handle *lockh)
1532 EXP_CHECK_DT_OP(exp, cancel);
1533 EXP_COUNTER_INCREMENT(exp, cancel);
1535 rc = OBP(exp->exp_obd, cancel)(exp, ea, mode, lockh);
1539 static inline int obd_cancel_unused(struct obd_export *exp,
1540 struct lov_stripe_md *ea,
1541 ldlm_cancel_flags_t flags,
1547 EXP_CHECK_DT_OP(exp, cancel_unused);
1548 EXP_COUNTER_INCREMENT(exp, cancel_unused);
1550 rc = OBP(exp->exp_obd, cancel_unused)(exp, ea, flags, opaque);
1554 static inline int obd_pin(struct obd_export *exp, const struct lu_fid *fid,
1555 struct obd_capa *oc, struct obd_client_handle *handle,
1561 EXP_CHECK_DT_OP(exp, pin);
1562 EXP_COUNTER_INCREMENT(exp, pin);
1564 rc = OBP(exp->exp_obd, pin)(exp, fid, oc, handle, flag);
1568 static inline int obd_unpin(struct obd_export *exp,
1569 struct obd_client_handle *handle, int flag)
1574 EXP_CHECK_DT_OP(exp, unpin);
1575 EXP_COUNTER_INCREMENT(exp, unpin);
1577 rc = OBP(exp->exp_obd, unpin)(exp, handle, flag);
1582 static inline void obd_import_event(struct obd_device *obd,
1583 struct obd_import *imp,
1584 enum obd_import_event event)
1588 CERROR("NULL device\n");
1592 if (obd->obd_set_up && OBP(obd, import_event)) {
1593 OBD_COUNTER_INCREMENT(obd, import_event);
1594 OBP(obd, import_event)(obd, imp, event);
1599 static inline int obd_llog_connect(struct obd_export *exp,
1600 struct llogd_conn_body *body)
1605 OBD_CHECK_DT_OP(exp->exp_obd, llog_connect, 0);
1606 EXP_COUNTER_INCREMENT(exp, llog_connect);
1608 rc = OBP(exp->exp_obd, llog_connect)(exp, body);
1613 static inline int obd_notify(struct obd_device *obd,
1614 struct obd_device *watched,
1615 enum obd_notify_event ev,
1622 /* the check for async_recov is a complete hack - I'm hereby
1623 overloading the meaning to also mean "this was called from
1624 mds_postsetup". I know that my mds is able to handle notifies
1625 by this point, and it needs to get them to execute mds_postrecov. */
1626 if (!obd->obd_set_up && !obd->obd_async_recov) {
1627 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1631 if (!OBP(obd, notify)) {
1632 CDEBUG(D_HA, "obd %s has no notify handler\n", obd->obd_name);
1636 OBD_COUNTER_INCREMENT(obd, notify);
1637 rc = OBP(obd, notify)(obd, watched, ev, data);
1641 static inline int obd_notify_observer(struct obd_device *observer,
1642 struct obd_device *observed,
1643 enum obd_notify_event ev,
1649 struct obd_notify_upcall *onu;
1651 if (observer->obd_observer)
1652 rc1 = obd_notify(observer->obd_observer, observed, ev, data);
1656 * Also, call non-obd listener, if any
1658 onu = &observer->obd_upcall;
1659 if (onu->onu_upcall != NULL)
1660 rc2 = onu->onu_upcall(observer, observed, ev,
1661 onu->onu_owner, NULL);
1665 return rc1 ? rc1 : rc2;
1668 static inline int obd_quotacheck(struct obd_export *exp,
1669 struct obd_quotactl *oqctl)
1674 EXP_CHECK_DT_OP(exp, quotacheck);
1675 EXP_COUNTER_INCREMENT(exp, quotacheck);
1677 rc = OBP(exp->exp_obd, quotacheck)(exp->exp_obd, exp, oqctl);
1681 static inline int obd_quotactl(struct obd_export *exp,
1682 struct obd_quotactl *oqctl)
1687 EXP_CHECK_DT_OP(exp, quotactl);
1688 EXP_COUNTER_INCREMENT(exp, quotactl);
1690 rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl);
1694 static inline int obd_health_check(const struct lu_env *env,
1695 struct obd_device *obd)
1697 /* returns: 0 on healthy
1698 * >0 on unhealthy + reason code/flag
1699 * however the only suppored reason == 1 right now
1700 * We'll need to define some better reasons
1701 * or flags in the future.
1707 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1708 if (obd == NULL || !OBT(obd)) {
1709 CERROR("cleaned up obd\n");
1710 RETURN(-EOPNOTSUPP);
1712 if (!obd->obd_set_up || obd->obd_stopping)
1714 if (!OBP(obd, health_check))
1717 rc = OBP(obd, health_check)(env, obd);
1721 static inline int obd_register_observer(struct obd_device *obd,
1722 struct obd_device *observer)
1726 down_write(&obd->obd_observer_link_sem);
1727 if (obd->obd_observer && observer) {
1728 up_write(&obd->obd_observer_link_sem);
1731 obd->obd_observer = observer;
1732 up_write(&obd->obd_observer_link_sem);
1736 static inline int obd_pin_observer(struct obd_device *obd,
1737 struct obd_device **observer)
1740 down_read(&obd->obd_observer_link_sem);
1741 if (!obd->obd_observer) {
1743 up_read(&obd->obd_observer_link_sem);
1746 *observer = obd->obd_observer;
1750 static inline int obd_unpin_observer(struct obd_device *obd)
1753 up_read(&obd->obd_observer_link_sem);
1758 static inline int obd_register_page_removal_cb(struct obd_export *exp,
1759 obd_page_removal_cb_t cb,
1760 obd_pin_extent_cb pin_cb)
1765 OBD_CHECK_DT_OP(exp->exp_obd, register_page_removal_cb, 0);
1766 OBD_COUNTER_INCREMENT(exp->exp_obd, register_page_removal_cb);
1768 rc = OBP(exp->exp_obd, register_page_removal_cb)(exp, cb, pin_cb);
1772 static inline int obd_unregister_page_removal_cb(struct obd_export *exp,
1773 obd_page_removal_cb_t cb)
1778 OBD_CHECK_DT_OP(exp->exp_obd, unregister_page_removal_cb, 0);
1779 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_page_removal_cb);
1781 rc = OBP(exp->exp_obd, unregister_page_removal_cb)(exp, cb);
1785 static inline int obd_register_lock_cancel_cb(struct obd_export *exp,
1786 obd_lock_cancel_cb cb)
1791 OBD_CHECK_DT_OP(exp->exp_obd, register_lock_cancel_cb, 0);
1792 OBD_COUNTER_INCREMENT(exp->exp_obd, register_lock_cancel_cb);
1794 rc = OBP(exp->exp_obd, register_lock_cancel_cb)(exp, cb);
1798 static inline int obd_unregister_lock_cancel_cb(struct obd_export *exp,
1799 obd_lock_cancel_cb cb)
1804 OBD_CHECK_DT_OP(exp->exp_obd, unregister_lock_cancel_cb, 0);
1805 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_lock_cancel_cb);
1807 rc = OBP(exp->exp_obd, unregister_lock_cancel_cb)(exp, cb);
1812 /* metadata helpers */
1813 static inline int md_getstatus(struct obd_export *exp,
1814 struct lu_fid *fid, struct obd_capa **pc)
1819 EXP_CHECK_MD_OP(exp, getstatus);
1820 EXP_MD_COUNTER_INCREMENT(exp, getstatus);
1821 rc = MDP(exp->exp_obd, getstatus)(exp, fid, pc);
1825 static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data,
1826 struct ptlrpc_request **request)
1830 EXP_CHECK_MD_OP(exp, getattr);
1831 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1832 rc = MDP(exp->exp_obd, getattr)(exp, op_data, request);
1836 static inline int md_null_inode(struct obd_export *exp,
1837 const struct lu_fid *fid)
1841 EXP_CHECK_MD_OP(exp, null_inode);
1842 EXP_MD_COUNTER_INCREMENT(exp, null_inode);
1843 rc = MDP(exp->exp_obd, null_inode)(exp, fid);
1847 static inline int md_find_cbdata(struct obd_export *exp,
1848 const struct lu_fid *fid,
1849 ldlm_iterator_t it, void *data)
1853 EXP_CHECK_MD_OP(exp, find_cbdata);
1854 EXP_MD_COUNTER_INCREMENT(exp, find_cbdata);
1855 rc = MDP(exp->exp_obd, find_cbdata)(exp, fid, it, data);
1859 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1860 struct md_open_data *mod,
1861 struct ptlrpc_request **request)
1865 EXP_CHECK_MD_OP(exp, close);
1866 EXP_MD_COUNTER_INCREMENT(exp, close);
1867 rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
1871 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1872 const void *data, int datalen, int mode, __u32 uid,
1873 __u32 gid, cfs_cap_t cap_effective, __u64 rdev,
1874 struct ptlrpc_request **request)
1878 EXP_CHECK_MD_OP(exp, create);
1879 EXP_MD_COUNTER_INCREMENT(exp, create);
1880 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1881 uid, gid, cap_effective, rdev, request);
1885 static inline int md_done_writing(struct obd_export *exp,
1886 struct md_op_data *op_data,
1887 struct md_open_data *mod)
1891 EXP_CHECK_MD_OP(exp, done_writing);
1892 EXP_MD_COUNTER_INCREMENT(exp, done_writing);
1893 rc = MDP(exp->exp_obd, done_writing)(exp, op_data, mod);
1897 static inline int md_enqueue(struct obd_export *exp,
1898 struct ldlm_enqueue_info *einfo,
1899 struct lookup_intent *it,
1900 struct md_op_data *op_data,
1901 struct lustre_handle *lockh,
1902 void *lmm, int lmmsize,
1903 struct ptlrpc_request **req,
1904 __u64 extra_lock_flags)
1908 EXP_CHECK_MD_OP(exp, enqueue);
1909 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1910 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, it, op_data, lockh,
1911 lmm, lmmsize, req, extra_lock_flags);
1915 static inline int md_getattr_name(struct obd_export *exp,
1916 struct md_op_data *op_data,
1917 struct ptlrpc_request **request)
1921 EXP_CHECK_MD_OP(exp, getattr_name);
1922 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1923 rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request);
1927 static inline int md_intent_lock(struct obd_export *exp,
1928 struct md_op_data *op_data, void *lmm,
1929 int lmmsize, struct lookup_intent *it,
1930 int lookup_flags, struct ptlrpc_request **reqp,
1931 ldlm_blocking_callback cb_blocking,
1932 __u64 extra_lock_flags)
1936 EXP_CHECK_MD_OP(exp, intent_lock);
1937 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1938 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, lmm, lmmsize,
1939 it, lookup_flags, reqp, cb_blocking,
1944 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1945 struct ptlrpc_request **request)
1949 EXP_CHECK_MD_OP(exp, link);
1950 EXP_MD_COUNTER_INCREMENT(exp, link);
1951 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1955 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1956 const char *old, int oldlen, const char *new,
1957 int newlen, struct ptlrpc_request **request)
1961 EXP_CHECK_MD_OP(exp, rename);
1962 EXP_MD_COUNTER_INCREMENT(exp, rename);
1963 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
1968 static inline int md_is_subdir(struct obd_export *exp,
1969 const struct lu_fid *pfid,
1970 const struct lu_fid *cfid,
1971 struct ptlrpc_request **request)
1975 EXP_CHECK_MD_OP(exp, is_subdir);
1976 EXP_MD_COUNTER_INCREMENT(exp, is_subdir);
1977 rc = MDP(exp->exp_obd, is_subdir)(exp, pfid, cfid, request);
1981 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
1982 void *ea, int ealen, void *ea2, int ea2len,
1983 struct ptlrpc_request **request,
1984 struct md_open_data **mod)
1988 EXP_CHECK_MD_OP(exp, setattr);
1989 EXP_MD_COUNTER_INCREMENT(exp, setattr);
1990 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen,
1991 ea2, ea2len, request, mod);
1995 static inline int md_fsync(struct obd_export *exp, const struct lu_fid *fid,
1996 struct obd_capa *oc, struct ptlrpc_request **request)
2000 EXP_CHECK_MD_OP(exp, fsync);
2001 EXP_MD_COUNTER_INCREMENT(exp, fsync);
2002 rc = MDP(exp->exp_obd, fsync)(exp, fid, oc, request);
2006 static inline int md_readpage(struct obd_export *exp, struct md_op_data *opdata,
2007 struct page **pages,
2008 struct ptlrpc_request **request)
2012 EXP_CHECK_MD_OP(exp, readpage);
2013 EXP_MD_COUNTER_INCREMENT(exp, readpage);
2014 rc = MDP(exp->exp_obd, readpage)(exp, opdata, pages, request);
2018 static inline int md_read_entry(struct obd_export *exp,
2019 struct md_op_data *op_data,
2020 struct md_callback *cb_op,
2021 struct lu_dirent **ld)
2025 EXP_CHECK_MD_OP(exp, read_entry);
2026 EXP_MD_COUNTER_INCREMENT(exp, read_entry);
2027 rc = MDP(exp->exp_obd, read_entry)(exp, op_data, cb_op, ld);
2031 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
2032 struct ptlrpc_request **request)
2036 EXP_CHECK_MD_OP(exp, unlink);
2037 EXP_MD_COUNTER_INCREMENT(exp, unlink);
2038 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
2042 static inline int md_get_lustre_md(struct obd_export *exp,
2043 struct ptlrpc_request *req,
2044 struct obd_export *dt_exp,
2045 struct obd_export *md_exp,
2046 struct lustre_md *md)
2049 EXP_CHECK_MD_OP(exp, get_lustre_md);
2050 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
2051 RETURN(MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md));
2054 static inline int md_free_lustre_md(struct obd_export *exp,
2055 struct lustre_md *md)
2058 EXP_CHECK_MD_OP(exp, free_lustre_md);
2059 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
2060 RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md));
2063 static inline int md_setxattr(struct obd_export *exp,
2064 const struct lu_fid *fid, struct obd_capa *oc,
2065 obd_valid valid, const char *name,
2066 const char *input, int input_size,
2067 int output_size, int flags, __u32 suppgid,
2068 struct ptlrpc_request **request)
2071 EXP_CHECK_MD_OP(exp, setxattr);
2072 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
2073 RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, oc, valid, name, input,
2074 input_size, output_size, flags,
2078 static inline int md_getxattr(struct obd_export *exp,
2079 const struct lu_fid *fid, struct obd_capa *oc,
2080 obd_valid valid, const char *name,
2081 const char *input, int input_size,
2082 int output_size, int flags,
2083 struct ptlrpc_request **request)
2086 EXP_CHECK_MD_OP(exp, getxattr);
2087 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
2088 RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, oc, valid, name, input,
2089 input_size, output_size, flags,
2093 static inline int md_set_open_replay_data(struct obd_export *exp,
2094 struct obd_client_handle *och,
2095 struct lookup_intent *it)
2098 EXP_CHECK_MD_OP(exp, set_open_replay_data);
2099 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
2100 RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, it));
2103 static inline int md_clear_open_replay_data(struct obd_export *exp,
2104 struct obd_client_handle *och)
2107 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
2108 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
2109 RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och));
2112 static inline int md_set_lock_data(struct obd_export *exp,
2113 __u64 *lockh, void *data, __u64 *bits)
2116 EXP_CHECK_MD_OP(exp, set_lock_data);
2117 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
2118 RETURN(MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits));
2121 static inline int md_cancel_unused(struct obd_export *exp,
2122 const struct lu_fid *fid,
2123 ldlm_policy_data_t *policy,
2125 ldlm_cancel_flags_t flags,
2131 EXP_CHECK_MD_OP(exp, cancel_unused);
2132 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
2134 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
2139 static inline ldlm_mode_t md_lock_match(struct obd_export *exp, __u64 flags,
2140 const struct lu_fid *fid,
2142 ldlm_policy_data_t *policy,
2144 struct lustre_handle *lockh)
2147 EXP_CHECK_MD_OP(exp, lock_match);
2148 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
2149 RETURN(MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
2150 policy, mode, lockh));
2153 static inline int md_init_ea_size(struct obd_export *exp, int easize,
2154 int def_asize, int cookiesize)
2157 EXP_CHECK_MD_OP(exp, init_ea_size);
2158 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
2159 RETURN(MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
2163 static inline int md_get_remote_perm(struct obd_export *exp,
2164 const struct lu_fid *fid,
2165 struct obd_capa *oc, __u32 suppgid,
2166 struct ptlrpc_request **request)
2169 EXP_CHECK_MD_OP(exp, get_remote_perm);
2170 EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm);
2171 RETURN(MDP(exp->exp_obd, get_remote_perm)(exp, fid, oc, suppgid,
2175 static inline int md_renew_capa(struct obd_export *exp, struct obd_capa *ocapa,
2180 EXP_CHECK_MD_OP(exp, renew_capa);
2181 EXP_MD_COUNTER_INCREMENT(exp, renew_capa);
2182 rc = MDP(exp->exp_obd, renew_capa)(exp, ocapa, cb);
2186 static inline int md_unpack_capa(struct obd_export *exp,
2187 struct ptlrpc_request *req,
2188 const struct req_msg_field *field,
2189 struct obd_capa **oc)
2193 EXP_CHECK_MD_OP(exp, unpack_capa);
2194 EXP_MD_COUNTER_INCREMENT(exp, unpack_capa);
2195 rc = MDP(exp->exp_obd, unpack_capa)(exp, req, field, oc);
2199 static inline int md_intent_getattr_async(struct obd_export *exp,
2200 struct md_enqueue_info *minfo,
2201 struct ldlm_enqueue_info *einfo)
2205 EXP_CHECK_MD_OP(exp, intent_getattr_async);
2206 EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
2207 rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo, einfo);
2211 static inline int md_revalidate_lock(struct obd_export *exp,
2212 struct lookup_intent *it,
2213 struct lu_fid *fid, __u64 *bits)
2217 EXP_CHECK_MD_OP(exp, revalidate_lock);
2218 EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
2219 rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits);
2224 /* OBD Metadata Support */
2226 extern int obd_init_caches(void);
2227 extern void obd_cleanup_caches(void);
2229 /* support routines */
2230 extern struct kmem_cache *obdo_cachep;
2232 #define OBDO_ALLOC(ptr) \
2234 OBD_SLAB_ALLOC_PTR_GFP((ptr), obdo_cachep, __GFP_IO); \
2237 #define OBDO_FREE(ptr) \
2239 OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
2243 static inline void obdo2fid(struct obdo *oa, struct lu_fid *fid)
2245 /* something here */
2248 static inline void fid2obdo(struct lu_fid *fid, struct obdo *oa)
2250 /* something here */
2253 typedef int (*register_lwp_cb)(void *data);
2255 struct lwp_register_item {
2256 struct obd_export **lri_exp;
2257 register_lwp_cb lri_cb_func;
2259 cfs_list_t lri_list;
2260 char lri_name[MTI_NAME_MAXLEN];
2263 /* I'm as embarrassed about this as you are.
2265 * <shaver> // XXX do not look into _superhack with remaining eye
2266 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
2267 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
2270 #ifdef HAVE_SERVER_SUPPORT
2271 int lustre_register_lwp_item(const char *lwpname, struct obd_export **exp,
2272 register_lwp_cb cb_func, void *cb_data);
2273 void lustre_deregister_lwp_item(struct obd_export **exp);
2274 int tgt_name2lwpname(const char *tgt_name, char *lwp_name);
2275 #endif /* HAVE_SERVER_SUPPORT */
2278 extern void obd_sysctl_init (void);
2279 extern void obd_sysctl_clean (void);
2282 typedef __u8 class_uuid_t[16];
2283 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
2286 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
2287 int class_add_uuid(const char *uuid, __u64 nid);
2288 int class_del_uuid (const char *uuid);
2289 int class_check_uuid(struct obd_uuid *uuid, __u64 nid);
2290 void class_init_uuidlist(void);
2291 void class_exit_uuidlist(void);
2294 int mea_name2idx(struct lmv_stripe_md *mea, const char *name, int namelen);
2295 int raw_name2idx(int hashtype, int count, const char *name, int namelen);
2298 #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
2300 #endif /* __LINUX_OBD_CLASS_H */