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 *)NULL)->o_iocontrol))
380 /* The '- 1' below is for o_owner. */
381 #define NUM_OBD_STATS \
382 (sizeof(struct obd_ops) / \
383 sizeof(((struct obd_ops *)NULL)->o_iocontrol) - 1)
385 #define OBD_COUNTER_INCREMENT(obd, op) \
386 lprocfs_counter_incr((obd)->obd_stats, \
387 (obd)->obd_cntr_base + OBD_COUNTER_OFFSET(op))
389 #define EXP_COUNTER_INCREMENT(exp, op) \
392 _off = (exp)->exp_obd->obd_cntr_base + OBD_COUNTER_OFFSET(op); \
393 lprocfs_counter_incr((exp)->exp_obd->obd_stats, _off); \
394 if ((exp)->exp_obd->obd_uses_nid_stats && \
395 (exp)->exp_nid_stats != NULL) \
396 lprocfs_counter_incr((exp)->exp_nid_stats->nid_stats, \
400 #define _MD_COUNTER_OFFSET(m_op) \
401 ((offsetof(struct md_ops, m_op) - \
402 offsetof(struct md_ops, MD_STATS_FIRST_OP)) / \
403 sizeof(((struct md_ops *)NULL)->MD_STATS_FIRST_OP))
405 #define MD_COUNTER_OFFSET(op) _MD_COUNTER_OFFSET(m_ ## op)
407 #define NUM_MD_STATS \
408 (_MD_COUNTER_OFFSET(MD_STATS_LAST_OP) - \
409 _MD_COUNTER_OFFSET(MD_STATS_FIRST_OP) + 1)
411 /* Note that we only increment md counters for ops whose offset is less
412 * than NUM_MD_STATS. This is explained in a comment in the definition
413 * of struct md_ops. */
414 #define EXP_MD_COUNTER_INCREMENT(exp, op) \
416 if (MD_COUNTER_OFFSET(op) < NUM_MD_STATS) \
417 lprocfs_counter_incr((exp)->exp_obd->obd_md_stats, \
418 (exp)->exp_obd->obd_md_cntr_base + \
419 MD_COUNTER_OFFSET(op)); \
423 #define OBD_COUNTER_OFFSET(op)
424 #define OBD_COUNTER_INCREMENT(obd, op)
425 #define EXP_COUNTER_INCREMENT(exp, op)
426 #define EXP_MD_COUNTER_INCREMENT(exp, op)
429 static inline int lprocfs_nid_ldlm_stats_init(struct nid_stat* tmp)
431 /* Always add in ldlm_stats */
432 tmp->nid_ldlm_stats = lprocfs_alloc_stats(LDLM_LAST_OPC - LDLM_FIRST_OPC
433 ,LPROCFS_STATS_FLAG_NOPERCPU);
434 if (tmp->nid_ldlm_stats == NULL)
437 lprocfs_init_ldlm_stats(tmp->nid_ldlm_stats);
439 return lprocfs_register_stats(tmp->nid_proc, "ldlm_stats",
440 tmp->nid_ldlm_stats);
443 #define EXP_CHECK_MD_OP(exp, op) \
445 if ((exp) == NULL) { \
446 CERROR("obd_" #op ": NULL export\n"); \
449 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
450 CERROR("obd_" #op ": cleaned up obd\n"); \
451 RETURN(-EOPNOTSUPP); \
453 if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
454 CERROR("obd_" #op ": dev %s/%d no operation\n", \
455 (exp)->exp_obd->obd_name, \
456 (exp)->exp_obd->obd_minor); \
457 RETURN(-EOPNOTSUPP); \
462 #define OBD_CHECK_DT_OP(obd, op, err) \
464 if (!OBT(obd) || !OBP((obd), op)) { \
466 CERROR("obd_" #op ": dev %d no operation\n", \
472 #define EXP_CHECK_DT_OP(exp, op) \
474 if ((exp) == NULL) { \
475 CERROR("obd_" #op ": NULL export\n"); \
478 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
479 CERROR("obd_" #op ": cleaned up obd\n"); \
480 RETURN(-EOPNOTSUPP); \
482 if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
483 CERROR("obd_" #op ": dev %d no operation\n", \
484 (exp)->exp_obd->obd_minor); \
485 RETURN(-EOPNOTSUPP); \
489 #define CTXT_CHECK_OP(ctxt, op, err) \
491 if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
493 CERROR("lop_" #op ": dev %d no operation\n", \
494 ctxt->loc_obd->obd_minor); \
499 static inline int class_devno_max(void)
501 return MAX_OBD_DEVICES;
504 static inline int obd_get_info(const struct lu_env *env,
505 struct obd_export *exp, __u32 keylen,
506 void *key, __u32 *vallen, void *val,
507 struct lov_stripe_md *lsm)
512 EXP_CHECK_DT_OP(exp, get_info);
513 EXP_COUNTER_INCREMENT(exp, get_info);
515 rc = OBP(exp->exp_obd, get_info)(env, exp, keylen, key, vallen, val,
520 static inline int obd_set_info_async(const struct lu_env *env,
521 struct obd_export *exp, obd_count keylen,
522 void *key, obd_count vallen, void *val,
523 struct ptlrpc_request_set *set)
528 EXP_CHECK_DT_OP(exp, set_info_async);
529 EXP_COUNTER_INCREMENT(exp, set_info_async);
531 rc = OBP(exp->exp_obd, set_info_async)(env, exp, keylen, key, vallen,
537 * obd-lu integration.
539 * Functionality is being moved into new lu_device-based layering, but some
540 * pieces of configuration process are still based on obd devices.
542 * Specifically, lu_device_type_operations::ldto_device_alloc() methods fully
543 * subsume ->o_setup() methods of obd devices they replace. The same for
544 * lu_device_operations::ldo_process_config() and ->o_process_config(). As a
545 * result, obd_setup() and obd_process_config() branch and call one XOR
548 * Yet neither lu_device_type_operations::ldto_device_fini() nor
549 * lu_device_type_operations::ldto_device_free() fully implement the
550 * functionality of ->o_precleanup() and ->o_cleanup() they override. Hence,
551 * obd_precleanup() and obd_cleanup() call both lu_device and obd operations.
554 #define DECLARE_LU_VARS(ldt, d) \
555 struct lu_device_type *ldt; \
558 static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
561 DECLARE_LU_VARS(ldt, d);
564 ldt = obd->obd_type->typ_lu;
566 struct lu_context session_ctx;
568 lu_context_init(&session_ctx, LCT_SESSION | LCT_SERVER_SESSION);
569 session_ctx.lc_thread = NULL;
570 lu_context_enter(&session_ctx);
572 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
574 env.le_ses = &session_ctx;
575 d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
584 lu_context_exit(&session_ctx);
585 lu_context_fini(&session_ctx);
588 OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
589 OBD_COUNTER_INCREMENT(obd, setup);
590 rc = OBP(obd, setup)(obd, cfg);
595 static inline int obd_precleanup(struct obd_device *obd,
596 enum obd_cleanup_stage cleanup_stage)
599 DECLARE_LU_VARS(ldt, d);
603 ldt = obd->obd_type->typ_lu;
605 if (ldt != NULL && d != NULL) {
606 if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
609 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
611 ldt->ldt_ops->ldto_device_fini(&env, d);
616 OBD_CHECK_DT_OP(obd, precleanup, 0);
617 OBD_COUNTER_INCREMENT(obd, precleanup);
619 rc = OBP(obd, precleanup)(obd, cleanup_stage);
623 static inline int obd_cleanup(struct obd_device *obd)
626 DECLARE_LU_VARS(ldt, d);
631 ldt = obd->obd_type->typ_lu;
633 if (ldt != NULL && d != NULL) {
636 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
638 ldt->ldt_ops->ldto_device_free(&env, d);
640 obd->obd_lu_dev = NULL;
643 OBD_CHECK_DT_OP(obd, cleanup, 0);
644 OBD_COUNTER_INCREMENT(obd, cleanup);
646 rc = OBP(obd, cleanup)(obd);
650 static inline void obd_cleanup_client_import(struct obd_device *obd)
654 /* If we set up but never connected, the
655 client import will not have been cleaned. */
656 down_write(&obd->u.cli.cl_sem);
657 if (obd->u.cli.cl_import) {
658 struct obd_import *imp;
659 imp = obd->u.cli.cl_import;
660 CDEBUG(D_CONFIG, "%s: client import never connected\n",
662 ptlrpc_invalidate_import(imp);
663 if (imp->imp_rq_pool) {
664 ptlrpc_free_rq_pool(imp->imp_rq_pool);
665 imp->imp_rq_pool = NULL;
667 client_destroy_import(imp);
668 obd->u.cli.cl_import = NULL;
670 up_write(&obd->u.cli.cl_sem);
676 obd_process_config(struct obd_device *obd, int datalen, void *data)
679 DECLARE_LU_VARS(ldt, d);
684 obd->obd_process_conf = 1;
685 ldt = obd->obd_type->typ_lu;
687 if (ldt != NULL && d != NULL) {
690 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
692 rc = d->ld_ops->ldo_process_config(&env, d, data);
696 OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
697 rc = OBP(obd, process_config)(obd, datalen, data);
699 OBD_COUNTER_INCREMENT(obd, process_config);
700 obd->obd_process_conf = 0;
705 /* Pack an in-memory MD struct for storage on disk.
706 * Returns +ve size of packed MD (0 for free), or -ve error.
708 * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL).
709 * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed.
710 * If @*disk_tgt == NULL, it will be allocated
712 static inline int obd_packmd(struct obd_export *exp,
713 struct lov_mds_md **disk_tgt,
714 struct lov_stripe_md *mem_src)
719 EXP_CHECK_DT_OP(exp, packmd);
720 EXP_COUNTER_INCREMENT(exp, packmd);
722 rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src);
726 static inline int obd_size_diskmd(struct obd_export *exp,
727 struct lov_stripe_md *mem_src)
729 return obd_packmd(exp, NULL, mem_src);
732 /* helper functions */
733 static inline int obd_alloc_diskmd(struct obd_export *exp,
734 struct lov_mds_md **disk_tgt)
737 LASSERT(*disk_tgt == NULL);
738 return obd_packmd(exp, disk_tgt, NULL);
741 static inline int obd_free_diskmd(struct obd_export *exp,
742 struct lov_mds_md **disk_tgt)
747 * LU-2590, for caller's convenience, *disk_tgt could be host
748 * endianness, it needs swab to LE if necessary, while just
749 * lov_mds_md header needs it for figuring out how much memory
752 if ((cpu_to_le32(LOV_MAGIC) != LOV_MAGIC) &&
753 (((*disk_tgt)->lmm_magic == LOV_MAGIC_V1) ||
754 ((*disk_tgt)->lmm_magic == LOV_MAGIC_V3)))
755 lustre_swab_lov_mds_md(*disk_tgt);
756 return obd_packmd(exp, disk_tgt, NULL);
759 /* Unpack an MD struct from disk to in-memory format.
760 * Returns +ve size of unpacked MD (0 for free), or -ve error.
762 * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL).
763 * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed.
764 * If @*mem_tgt == NULL, it will be allocated
766 static inline int obd_unpackmd(struct obd_export *exp,
767 struct lov_stripe_md **mem_tgt,
768 struct lov_mds_md *disk_src,
774 EXP_CHECK_DT_OP(exp, unpackmd);
775 EXP_COUNTER_INCREMENT(exp, unpackmd);
777 rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len);
781 /* helper functions */
782 static inline int obd_alloc_memmd(struct obd_export *exp,
783 struct lov_stripe_md **mem_tgt)
786 LASSERT(*mem_tgt == NULL);
787 return obd_unpackmd(exp, mem_tgt, NULL, 0);
790 static inline int obd_free_memmd(struct obd_export *exp,
791 struct lov_stripe_md **mem_tgt)
797 rc = obd_unpackmd(exp, mem_tgt, NULL, 0);
802 static inline int obd_precreate(struct obd_export *exp)
807 EXP_CHECK_DT_OP(exp, precreate);
808 OBD_COUNTER_INCREMENT(exp->exp_obd, precreate);
810 rc = OBP(exp->exp_obd, precreate)(exp);
814 static inline int obd_create_async(struct obd_export *exp,
815 struct obd_info *oinfo,
816 struct lov_stripe_md **ea,
817 struct obd_trans_info *oti)
822 EXP_CHECK_DT_OP(exp, create_async);
823 EXP_COUNTER_INCREMENT(exp, create_async);
825 rc = OBP(exp->exp_obd, create_async)(exp, oinfo, ea, oti);
829 static inline int obd_create(const struct lu_env *env, struct obd_export *exp,
830 struct obdo *obdo, struct lov_stripe_md **ea,
831 struct obd_trans_info *oti)
836 EXP_CHECK_DT_OP(exp, create);
837 EXP_COUNTER_INCREMENT(exp, create);
839 rc = OBP(exp->exp_obd, create)(env, exp, obdo, ea, oti);
843 static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp,
844 struct obdo *obdo, struct lov_stripe_md *ea,
845 struct obd_trans_info *oti,
846 struct obd_export *md_exp, void *capa)
851 EXP_CHECK_DT_OP(exp, destroy);
852 EXP_COUNTER_INCREMENT(exp, destroy);
854 rc = OBP(exp->exp_obd, destroy)(env, exp, obdo, ea, oti, md_exp, capa);
858 static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp,
859 struct obd_info *oinfo)
864 EXP_CHECK_DT_OP(exp, getattr);
865 EXP_COUNTER_INCREMENT(exp, getattr);
867 rc = OBP(exp->exp_obd, getattr)(env, exp, oinfo);
871 static inline int obd_getattr_async(struct obd_export *exp,
872 struct obd_info *oinfo,
873 struct ptlrpc_request_set *set)
878 EXP_CHECK_DT_OP(exp, getattr_async);
879 EXP_COUNTER_INCREMENT(exp, getattr_async);
881 rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set);
885 static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp,
886 struct obd_info *oinfo,
887 struct obd_trans_info *oti)
892 EXP_CHECK_DT_OP(exp, setattr);
893 EXP_COUNTER_INCREMENT(exp, setattr);
895 rc = OBP(exp->exp_obd, setattr)(env, exp, oinfo, oti);
899 /* This performs all the requests set init/wait/destroy actions. */
900 static inline int obd_setattr_rqset(struct obd_export *exp,
901 struct obd_info *oinfo,
902 struct obd_trans_info *oti)
904 struct ptlrpc_request_set *set = NULL;
908 EXP_CHECK_DT_OP(exp, setattr_async);
909 EXP_COUNTER_INCREMENT(exp, setattr_async);
911 set = ptlrpc_prep_set();
915 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
917 rc = ptlrpc_set_wait(set);
918 ptlrpc_set_destroy(set);
922 /* This adds all the requests into @set if @set != NULL, otherwise
923 all requests are sent asynchronously without waiting for response. */
924 static inline int obd_setattr_async(struct obd_export *exp,
925 struct obd_info *oinfo,
926 struct obd_trans_info *oti,
927 struct ptlrpc_request_set *set)
932 EXP_CHECK_DT_OP(exp, setattr_async);
933 EXP_COUNTER_INCREMENT(exp, setattr_async);
935 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
939 static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
942 struct obd_device *obd = imp->imp_obd;
946 OBD_CHECK_DEV_ACTIVE(obd);
947 OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
948 OBD_COUNTER_INCREMENT(obd, add_conn);
950 rc = OBP(obd, add_conn)(imp, uuid, priority);
954 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
956 struct obd_device *obd = imp->imp_obd;
960 OBD_CHECK_DEV_ACTIVE(obd);
961 OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
962 OBD_COUNTER_INCREMENT(obd, del_conn);
964 rc = OBP(obd, del_conn)(imp, uuid);
968 static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp)
970 struct obd_uuid *uuid;
973 OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL);
974 EXP_COUNTER_INCREMENT(exp, get_uuid);
976 uuid = OBP(exp->exp_obd, get_uuid)(exp);
980 /** Create a new /a exp on device /a obd for the uuid /a cluuid
981 * @param exp New export handle
982 * @param d Connect data, supported flags are set, flags also understood
983 * by obd are returned.
985 static inline int obd_connect(const struct lu_env *env,
986 struct obd_export **exp,struct obd_device *obd,
987 struct obd_uuid *cluuid,
988 struct obd_connect_data *data,
992 __u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
996 OBD_CHECK_DEV_ACTIVE(obd);
997 OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
998 OBD_COUNTER_INCREMENT(obd, connect);
1000 rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata);
1001 /* check that only subset is granted */
1002 LASSERT(ergo(data != NULL, (data->ocd_connect_flags & ocf) ==
1003 data->ocd_connect_flags));
1007 static inline int obd_reconnect(const struct lu_env *env,
1008 struct obd_export *exp,
1009 struct obd_device *obd,
1010 struct obd_uuid *cluuid,
1011 struct obd_connect_data *d,
1015 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
1020 OBD_CHECK_DEV_ACTIVE(obd);
1021 OBD_CHECK_DT_OP(obd, reconnect, 0);
1022 OBD_COUNTER_INCREMENT(obd, reconnect);
1024 rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
1025 /* check that only subset is granted */
1026 LASSERT(ergo(d != NULL,
1027 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
1031 static inline int obd_disconnect(struct obd_export *exp)
1036 EXP_CHECK_DT_OP(exp, disconnect);
1037 EXP_COUNTER_INCREMENT(exp, disconnect);
1039 rc = OBP(exp->exp_obd, disconnect)(exp);
1043 static inline int obd_fid_init(struct obd_device *obd, struct obd_export *exp,
1044 enum lu_cli_type type)
1049 OBD_CHECK_DT_OP(obd, fid_init, 0);
1050 OBD_COUNTER_INCREMENT(obd, fid_init);
1052 rc = OBP(obd, fid_init)(obd, exp, type);
1056 static inline int obd_fid_fini(struct obd_device *obd)
1061 OBD_CHECK_DT_OP(obd, fid_fini, 0);
1062 OBD_COUNTER_INCREMENT(obd, fid_fini);
1064 rc = OBP(obd, fid_fini)(obd);
1068 static inline int obd_fid_alloc(struct obd_export *exp,
1070 struct md_op_data *op_data)
1075 EXP_CHECK_DT_OP(exp, fid_alloc);
1076 EXP_COUNTER_INCREMENT(exp, fid_alloc);
1078 rc = OBP(exp->exp_obd, fid_alloc)(exp, fid, op_data);
1082 static inline int obd_ping(const struct lu_env *env, struct obd_export *exp)
1087 OBD_CHECK_DT_OP(exp->exp_obd, ping, 0);
1088 EXP_COUNTER_INCREMENT(exp, ping);
1090 rc = OBP(exp->exp_obd, ping)(env, exp);
1094 static inline int obd_pool_new(struct obd_device *obd, char *poolname)
1099 OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP);
1100 OBD_COUNTER_INCREMENT(obd, pool_new);
1102 rc = OBP(obd, pool_new)(obd, poolname);
1106 static inline int obd_pool_del(struct obd_device *obd, char *poolname)
1111 OBD_CHECK_DT_OP(obd, pool_del, -EOPNOTSUPP);
1112 OBD_COUNTER_INCREMENT(obd, pool_del);
1114 rc = OBP(obd, pool_del)(obd, poolname);
1118 static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname)
1123 OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP);
1124 OBD_COUNTER_INCREMENT(obd, pool_add);
1126 rc = OBP(obd, pool_add)(obd, poolname, ostname);
1130 static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname)
1135 OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP);
1136 OBD_COUNTER_INCREMENT(obd, pool_rem);
1138 rc = OBP(obd, pool_rem)(obd, poolname, ostname);
1142 static inline void obd_getref(struct obd_device *obd)
1145 if (OBT(obd) && OBP(obd, getref)) {
1146 OBD_COUNTER_INCREMENT(obd, getref);
1147 OBP(obd, getref)(obd);
1152 static inline void obd_putref(struct obd_device *obd)
1155 if (OBT(obd) && OBP(obd, putref)) {
1156 OBD_COUNTER_INCREMENT(obd, putref);
1157 OBP(obd, putref)(obd);
1162 static inline int obd_init_export(struct obd_export *exp)
1167 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1168 OBP((exp)->exp_obd, init_export))
1169 rc = OBP(exp->exp_obd, init_export)(exp);
1173 static inline int obd_destroy_export(struct obd_export *exp)
1176 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1177 OBP((exp)->exp_obd, destroy_export))
1178 OBP(exp->exp_obd, destroy_export)(exp);
1182 static inline int obd_extent_calc(struct obd_export *exp,
1183 struct lov_stripe_md *md,
1184 int cmd, obd_off *offset)
1188 EXP_CHECK_DT_OP(exp, extent_calc);
1189 rc = OBP(exp->exp_obd, extent_calc)(exp, md, cmd, offset);
1193 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1194 * If the cache is older than @max_age we will get a new value from the
1195 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1196 static inline int obd_statfs_async(struct obd_export *exp,
1197 struct obd_info *oinfo,
1199 struct ptlrpc_request_set *rqset)
1202 struct obd_device *obd;
1205 if (exp == NULL || exp->exp_obd == NULL)
1209 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1210 OBD_COUNTER_INCREMENT(obd, statfs);
1212 CDEBUG(D_SUPER, "%s: osfs %p age "LPU64", max_age "LPU64"\n",
1213 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
1214 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1215 rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset);
1217 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1218 " objects "LPU64"/"LPU64"\n",
1219 obd->obd_name, &obd->obd_osfs,
1220 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1221 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1222 spin_lock(&obd->obd_osfs_lock);
1223 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
1224 spin_unlock(&obd->obd_osfs_lock);
1225 oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
1226 if (oinfo->oi_cb_up)
1227 oinfo->oi_cb_up(oinfo, 0);
1232 static inline int obd_statfs_rqset(struct obd_export *exp,
1233 struct obd_statfs *osfs, __u64 max_age,
1236 struct ptlrpc_request_set *set = NULL;
1237 struct obd_info oinfo = { { { 0 } } };
1241 set = ptlrpc_prep_set();
1245 oinfo.oi_osfs = osfs;
1246 oinfo.oi_flags = flags;
1247 rc = obd_statfs_async(exp, &oinfo, max_age, set);
1249 rc = ptlrpc_set_wait(set);
1250 ptlrpc_set_destroy(set);
1254 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1255 * If the cache is older than @max_age we will get a new value from the
1256 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1257 static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
1258 struct obd_statfs *osfs, __u64 max_age,
1262 struct obd_device *obd = exp->exp_obd;
1268 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1269 OBD_COUNTER_INCREMENT(obd, statfs);
1271 CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n",
1272 obd->obd_osfs_age, max_age);
1273 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1274 rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
1276 spin_lock(&obd->obd_osfs_lock);
1277 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1278 obd->obd_osfs_age = cfs_time_current_64();
1279 spin_unlock(&obd->obd_osfs_lock);
1282 CDEBUG(D_SUPER, "%s: use %p cache blocks "LPU64"/"LPU64
1283 " objects "LPU64"/"LPU64"\n",
1284 obd->obd_name, &obd->obd_osfs,
1285 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1286 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1287 spin_lock(&obd->obd_osfs_lock);
1288 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1289 spin_unlock(&obd->obd_osfs_lock);
1294 static inline int obd_sync_rqset(struct obd_export *exp, struct obd_info *oinfo,
1295 obd_size start, obd_size end)
1297 struct ptlrpc_request_set *set = NULL;
1301 OBD_CHECK_DT_OP(exp->exp_obd, sync, -EOPNOTSUPP);
1302 EXP_COUNTER_INCREMENT(exp, sync);
1304 set = ptlrpc_prep_set();
1308 rc = OBP(exp->exp_obd, sync)(NULL, exp, oinfo, start, end, set);
1310 rc = ptlrpc_set_wait(set);
1311 ptlrpc_set_destroy(set);
1315 static inline int obd_sync(const struct lu_env *env, struct obd_export *exp,
1316 struct obd_info *oinfo, obd_size start, obd_size end,
1317 struct ptlrpc_request_set *set)
1322 OBD_CHECK_DT_OP(exp->exp_obd, sync, -EOPNOTSUPP);
1323 EXP_COUNTER_INCREMENT(exp, sync);
1325 rc = OBP(exp->exp_obd, sync)(env, exp, oinfo, start, end, set);
1329 static inline int obd_punch_rqset(struct obd_export *exp,
1330 struct obd_info *oinfo,
1331 struct obd_trans_info *oti)
1333 struct ptlrpc_request_set *set = NULL;
1337 EXP_CHECK_DT_OP(exp, punch);
1338 EXP_COUNTER_INCREMENT(exp, punch);
1340 set = ptlrpc_prep_set();
1344 rc = OBP(exp->exp_obd, punch)(NULL, exp, oinfo, oti, set);
1346 rc = ptlrpc_set_wait(set);
1347 ptlrpc_set_destroy(set);
1351 static inline int obd_punch(const struct lu_env *env, struct obd_export *exp,
1352 struct obd_info *oinfo, struct obd_trans_info *oti,
1353 struct ptlrpc_request_set *rqset)
1358 EXP_CHECK_DT_OP(exp, punch);
1359 EXP_COUNTER_INCREMENT(exp, punch);
1361 rc = OBP(exp->exp_obd, punch)(env, exp, oinfo, oti, rqset);
1365 static inline int obd_brw(int cmd, struct obd_export *exp,
1366 struct obd_info *oinfo, obd_count oa_bufs,
1367 struct brw_page *pg, struct obd_trans_info *oti)
1372 EXP_CHECK_DT_OP(exp, brw);
1373 EXP_COUNTER_INCREMENT(exp, brw);
1375 if (!(cmd & (OBD_BRW_RWMASK | OBD_BRW_CHECK))) {
1376 CERROR("obd_brw: cmd must be OBD_BRW_READ, OBD_BRW_WRITE, "
1377 "or OBD_BRW_CHECK\n");
1381 rc = OBP(exp->exp_obd, brw)(cmd, exp, oinfo, oa_bufs, pg, oti);
1385 static inline int obd_preprw(const struct lu_env *env, int cmd,
1386 struct obd_export *exp, struct obdo *oa,
1387 int objcount, struct obd_ioobj *obj,
1388 struct niobuf_remote *remote, int *pages,
1389 struct niobuf_local *local,
1390 struct obd_trans_info *oti,
1391 struct lustre_capa *capa)
1396 EXP_CHECK_DT_OP(exp, preprw);
1397 EXP_COUNTER_INCREMENT(exp, preprw);
1399 rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote,
1400 pages, local, oti, capa);
1404 static inline int obd_commitrw(const struct lu_env *env, int cmd,
1405 struct obd_export *exp, struct obdo *oa,
1406 int objcount, struct obd_ioobj *obj,
1407 struct niobuf_remote *rnb, int pages,
1408 struct niobuf_local *local,
1409 struct obd_trans_info *oti, int rc)
1413 EXP_CHECK_DT_OP(exp, commitrw);
1414 EXP_COUNTER_INCREMENT(exp, commitrw);
1416 rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj,
1417 rnb, pages, local, oti, rc);
1421 static inline int obd_merge_lvb(struct obd_export *exp,
1422 struct lov_stripe_md *lsm,
1423 struct ost_lvb *lvb, int kms_only)
1428 EXP_CHECK_DT_OP(exp, merge_lvb);
1429 EXP_COUNTER_INCREMENT(exp, merge_lvb);
1431 rc = OBP(exp->exp_obd, merge_lvb)(exp, lsm, lvb, kms_only);
1435 static inline int obd_adjust_kms(struct obd_export *exp,
1436 struct lov_stripe_md *lsm, obd_off size,
1442 EXP_CHECK_DT_OP(exp, adjust_kms);
1443 EXP_COUNTER_INCREMENT(exp, adjust_kms);
1445 rc = OBP(exp->exp_obd, adjust_kms)(exp, lsm, size, shrink);
1449 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1450 int len, void *karg, void *uarg)
1455 EXP_CHECK_DT_OP(exp, iocontrol);
1456 EXP_COUNTER_INCREMENT(exp, iocontrol);
1458 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1462 static inline int obd_enqueue_rqset(struct obd_export *exp,
1463 struct obd_info *oinfo,
1464 struct ldlm_enqueue_info *einfo)
1466 struct ptlrpc_request_set *set = NULL;
1470 EXP_CHECK_DT_OP(exp, enqueue);
1471 EXP_COUNTER_INCREMENT(exp, enqueue);
1473 set = ptlrpc_prep_set();
1477 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1479 rc = ptlrpc_set_wait(set);
1480 ptlrpc_set_destroy(set);
1484 static inline int obd_enqueue(struct obd_export *exp,
1485 struct obd_info *oinfo,
1486 struct ldlm_enqueue_info *einfo,
1487 struct ptlrpc_request_set *set)
1492 EXP_CHECK_DT_OP(exp, enqueue);
1493 EXP_COUNTER_INCREMENT(exp, enqueue);
1495 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1499 static inline int obd_change_cbdata(struct obd_export *exp,
1500 struct lov_stripe_md *lsm,
1501 ldlm_iterator_t it, void *data)
1506 EXP_CHECK_DT_OP(exp, change_cbdata);
1507 EXP_COUNTER_INCREMENT(exp, change_cbdata);
1509 rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data);
1513 static inline int obd_find_cbdata(struct obd_export *exp,
1514 struct lov_stripe_md *lsm,
1515 ldlm_iterator_t it, void *data)
1520 EXP_CHECK_DT_OP(exp, find_cbdata);
1521 EXP_COUNTER_INCREMENT(exp, find_cbdata);
1523 rc = OBP(exp->exp_obd, find_cbdata)(exp, lsm, it, data);
1527 static inline int obd_cancel(struct obd_export *exp,
1528 struct lov_stripe_md *ea, __u32 mode,
1529 struct lustre_handle *lockh)
1534 EXP_CHECK_DT_OP(exp, cancel);
1535 EXP_COUNTER_INCREMENT(exp, cancel);
1537 rc = OBP(exp->exp_obd, cancel)(exp, ea, mode, lockh);
1541 static inline int obd_cancel_unused(struct obd_export *exp,
1542 struct lov_stripe_md *ea,
1543 ldlm_cancel_flags_t flags,
1549 EXP_CHECK_DT_OP(exp, cancel_unused);
1550 EXP_COUNTER_INCREMENT(exp, cancel_unused);
1552 rc = OBP(exp->exp_obd, cancel_unused)(exp, ea, flags, opaque);
1556 static inline int obd_pin(struct obd_export *exp, const struct lu_fid *fid,
1557 struct obd_capa *oc, struct obd_client_handle *handle,
1563 EXP_CHECK_DT_OP(exp, pin);
1564 EXP_COUNTER_INCREMENT(exp, pin);
1566 rc = OBP(exp->exp_obd, pin)(exp, fid, oc, handle, flag);
1570 static inline int obd_unpin(struct obd_export *exp,
1571 struct obd_client_handle *handle, int flag)
1576 EXP_CHECK_DT_OP(exp, unpin);
1577 EXP_COUNTER_INCREMENT(exp, unpin);
1579 rc = OBP(exp->exp_obd, unpin)(exp, handle, flag);
1584 static inline void obd_import_event(struct obd_device *obd,
1585 struct obd_import *imp,
1586 enum obd_import_event event)
1590 CERROR("NULL device\n");
1594 if (obd->obd_set_up && OBP(obd, import_event)) {
1595 OBD_COUNTER_INCREMENT(obd, import_event);
1596 OBP(obd, import_event)(obd, imp, event);
1601 static inline int obd_llog_connect(struct obd_export *exp,
1602 struct llogd_conn_body *body)
1607 OBD_CHECK_DT_OP(exp->exp_obd, llog_connect, 0);
1608 EXP_COUNTER_INCREMENT(exp, llog_connect);
1610 rc = OBP(exp->exp_obd, llog_connect)(exp, body);
1615 static inline int obd_notify(struct obd_device *obd,
1616 struct obd_device *watched,
1617 enum obd_notify_event ev,
1624 /* the check for async_recov is a complete hack - I'm hereby
1625 overloading the meaning to also mean "this was called from
1626 mds_postsetup". I know that my mds is able to handle notifies
1627 by this point, and it needs to get them to execute mds_postrecov. */
1628 if (!obd->obd_set_up && !obd->obd_async_recov) {
1629 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1633 if (!OBP(obd, notify)) {
1634 CDEBUG(D_HA, "obd %s has no notify handler\n", obd->obd_name);
1638 OBD_COUNTER_INCREMENT(obd, notify);
1639 rc = OBP(obd, notify)(obd, watched, ev, data);
1643 static inline int obd_notify_observer(struct obd_device *observer,
1644 struct obd_device *observed,
1645 enum obd_notify_event ev,
1651 struct obd_notify_upcall *onu;
1653 if (observer->obd_observer)
1654 rc1 = obd_notify(observer->obd_observer, observed, ev, data);
1658 * Also, call non-obd listener, if any
1660 onu = &observer->obd_upcall;
1661 if (onu->onu_upcall != NULL)
1662 rc2 = onu->onu_upcall(observer, observed, ev,
1663 onu->onu_owner, NULL);
1667 return rc1 ? rc1 : rc2;
1670 static inline int obd_quotacheck(struct obd_export *exp,
1671 struct obd_quotactl *oqctl)
1676 EXP_CHECK_DT_OP(exp, quotacheck);
1677 EXP_COUNTER_INCREMENT(exp, quotacheck);
1679 rc = OBP(exp->exp_obd, quotacheck)(exp->exp_obd, exp, oqctl);
1683 static inline int obd_quotactl(struct obd_export *exp,
1684 struct obd_quotactl *oqctl)
1689 EXP_CHECK_DT_OP(exp, quotactl);
1690 EXP_COUNTER_INCREMENT(exp, quotactl);
1692 rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl);
1696 static inline int obd_health_check(const struct lu_env *env,
1697 struct obd_device *obd)
1699 /* returns: 0 on healthy
1700 * >0 on unhealthy + reason code/flag
1701 * however the only suppored reason == 1 right now
1702 * We'll need to define some better reasons
1703 * or flags in the future.
1709 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1710 if (obd == NULL || !OBT(obd)) {
1711 CERROR("cleaned up obd\n");
1712 RETURN(-EOPNOTSUPP);
1714 if (!obd->obd_set_up || obd->obd_stopping)
1716 if (!OBP(obd, health_check))
1719 rc = OBP(obd, health_check)(env, obd);
1723 static inline int obd_register_observer(struct obd_device *obd,
1724 struct obd_device *observer)
1728 down_write(&obd->obd_observer_link_sem);
1729 if (obd->obd_observer && observer) {
1730 up_write(&obd->obd_observer_link_sem);
1733 obd->obd_observer = observer;
1734 up_write(&obd->obd_observer_link_sem);
1738 static inline int obd_pin_observer(struct obd_device *obd,
1739 struct obd_device **observer)
1742 down_read(&obd->obd_observer_link_sem);
1743 if (!obd->obd_observer) {
1745 up_read(&obd->obd_observer_link_sem);
1748 *observer = obd->obd_observer;
1752 static inline int obd_unpin_observer(struct obd_device *obd)
1755 up_read(&obd->obd_observer_link_sem);
1760 static inline int obd_register_page_removal_cb(struct obd_export *exp,
1761 obd_page_removal_cb_t cb,
1762 obd_pin_extent_cb pin_cb)
1767 OBD_CHECK_DT_OP(exp->exp_obd, register_page_removal_cb, 0);
1768 OBD_COUNTER_INCREMENT(exp->exp_obd, register_page_removal_cb);
1770 rc = OBP(exp->exp_obd, register_page_removal_cb)(exp, cb, pin_cb);
1774 static inline int obd_unregister_page_removal_cb(struct obd_export *exp,
1775 obd_page_removal_cb_t cb)
1780 OBD_CHECK_DT_OP(exp->exp_obd, unregister_page_removal_cb, 0);
1781 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_page_removal_cb);
1783 rc = OBP(exp->exp_obd, unregister_page_removal_cb)(exp, cb);
1787 static inline int obd_register_lock_cancel_cb(struct obd_export *exp,
1788 obd_lock_cancel_cb cb)
1793 OBD_CHECK_DT_OP(exp->exp_obd, register_lock_cancel_cb, 0);
1794 OBD_COUNTER_INCREMENT(exp->exp_obd, register_lock_cancel_cb);
1796 rc = OBP(exp->exp_obd, register_lock_cancel_cb)(exp, cb);
1800 static inline int obd_unregister_lock_cancel_cb(struct obd_export *exp,
1801 obd_lock_cancel_cb cb)
1806 OBD_CHECK_DT_OP(exp->exp_obd, unregister_lock_cancel_cb, 0);
1807 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_lock_cancel_cb);
1809 rc = OBP(exp->exp_obd, unregister_lock_cancel_cb)(exp, cb);
1814 /* metadata helpers */
1815 static inline int md_getstatus(struct obd_export *exp,
1816 struct lu_fid *fid, struct obd_capa **pc)
1821 EXP_CHECK_MD_OP(exp, getstatus);
1822 EXP_MD_COUNTER_INCREMENT(exp, getstatus);
1823 rc = MDP(exp->exp_obd, getstatus)(exp, fid, pc);
1827 static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data,
1828 struct ptlrpc_request **request)
1832 EXP_CHECK_MD_OP(exp, getattr);
1833 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1834 rc = MDP(exp->exp_obd, getattr)(exp, op_data, request);
1838 static inline int md_null_inode(struct obd_export *exp,
1839 const struct lu_fid *fid)
1843 EXP_CHECK_MD_OP(exp, null_inode);
1844 EXP_MD_COUNTER_INCREMENT(exp, null_inode);
1845 rc = MDP(exp->exp_obd, null_inode)(exp, fid);
1849 static inline int md_find_cbdata(struct obd_export *exp,
1850 const struct lu_fid *fid,
1851 ldlm_iterator_t it, void *data)
1855 EXP_CHECK_MD_OP(exp, find_cbdata);
1856 EXP_MD_COUNTER_INCREMENT(exp, find_cbdata);
1857 rc = MDP(exp->exp_obd, find_cbdata)(exp, fid, it, data);
1861 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1862 struct md_open_data *mod,
1863 struct ptlrpc_request **request)
1867 EXP_CHECK_MD_OP(exp, close);
1868 EXP_MD_COUNTER_INCREMENT(exp, close);
1869 rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
1873 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1874 const void *data, int datalen, int mode, __u32 uid,
1875 __u32 gid, cfs_cap_t cap_effective, __u64 rdev,
1876 struct ptlrpc_request **request)
1880 EXP_CHECK_MD_OP(exp, create);
1881 EXP_MD_COUNTER_INCREMENT(exp, create);
1882 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1883 uid, gid, cap_effective, rdev, request);
1887 static inline int md_done_writing(struct obd_export *exp,
1888 struct md_op_data *op_data,
1889 struct md_open_data *mod)
1893 EXP_CHECK_MD_OP(exp, done_writing);
1894 EXP_MD_COUNTER_INCREMENT(exp, done_writing);
1895 rc = MDP(exp->exp_obd, done_writing)(exp, op_data, mod);
1899 static inline int md_enqueue(struct obd_export *exp,
1900 struct ldlm_enqueue_info *einfo,
1901 struct lookup_intent *it,
1902 struct md_op_data *op_data,
1903 struct lustre_handle *lockh,
1904 void *lmm, int lmmsize,
1905 struct ptlrpc_request **req,
1906 __u64 extra_lock_flags)
1910 EXP_CHECK_MD_OP(exp, enqueue);
1911 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1912 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, it, op_data, lockh,
1913 lmm, lmmsize, req, extra_lock_flags);
1917 static inline int md_getattr_name(struct obd_export *exp,
1918 struct md_op_data *op_data,
1919 struct ptlrpc_request **request)
1923 EXP_CHECK_MD_OP(exp, getattr_name);
1924 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1925 rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request);
1929 static inline int md_intent_lock(struct obd_export *exp,
1930 struct md_op_data *op_data, void *lmm,
1931 int lmmsize, struct lookup_intent *it,
1932 int lookup_flags, struct ptlrpc_request **reqp,
1933 ldlm_blocking_callback cb_blocking,
1934 __u64 extra_lock_flags)
1938 EXP_CHECK_MD_OP(exp, intent_lock);
1939 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1940 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, lmm, lmmsize,
1941 it, lookup_flags, reqp, cb_blocking,
1946 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1947 struct ptlrpc_request **request)
1951 EXP_CHECK_MD_OP(exp, link);
1952 EXP_MD_COUNTER_INCREMENT(exp, link);
1953 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1957 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1958 const char *old, int oldlen, const char *new,
1959 int newlen, struct ptlrpc_request **request)
1963 EXP_CHECK_MD_OP(exp, rename);
1964 EXP_MD_COUNTER_INCREMENT(exp, rename);
1965 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
1970 static inline int md_is_subdir(struct obd_export *exp,
1971 const struct lu_fid *pfid,
1972 const struct lu_fid *cfid,
1973 struct ptlrpc_request **request)
1977 EXP_CHECK_MD_OP(exp, is_subdir);
1978 EXP_MD_COUNTER_INCREMENT(exp, is_subdir);
1979 rc = MDP(exp->exp_obd, is_subdir)(exp, pfid, cfid, request);
1983 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
1984 void *ea, int ealen, void *ea2, int ea2len,
1985 struct ptlrpc_request **request,
1986 struct md_open_data **mod)
1990 EXP_CHECK_MD_OP(exp, setattr);
1991 EXP_MD_COUNTER_INCREMENT(exp, setattr);
1992 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen,
1993 ea2, ea2len, request, mod);
1997 static inline int md_fsync(struct obd_export *exp, const struct lu_fid *fid,
1998 struct obd_capa *oc, struct ptlrpc_request **request)
2002 EXP_CHECK_MD_OP(exp, fsync);
2003 EXP_MD_COUNTER_INCREMENT(exp, fsync);
2004 rc = MDP(exp->exp_obd, fsync)(exp, fid, oc, request);
2008 static inline int md_readpage(struct obd_export *exp, struct md_op_data *opdata,
2009 struct page **pages,
2010 struct ptlrpc_request **request)
2014 EXP_CHECK_MD_OP(exp, readpage);
2015 EXP_MD_COUNTER_INCREMENT(exp, readpage);
2016 rc = MDP(exp->exp_obd, readpage)(exp, opdata, pages, request);
2020 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
2021 struct ptlrpc_request **request)
2025 EXP_CHECK_MD_OP(exp, unlink);
2026 EXP_MD_COUNTER_INCREMENT(exp, unlink);
2027 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
2031 static inline int md_get_lustre_md(struct obd_export *exp,
2032 struct ptlrpc_request *req,
2033 struct obd_export *dt_exp,
2034 struct obd_export *md_exp,
2035 struct lustre_md *md)
2038 EXP_CHECK_MD_OP(exp, get_lustre_md);
2039 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
2040 RETURN(MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md));
2043 static inline int md_free_lustre_md(struct obd_export *exp,
2044 struct lustre_md *md)
2047 EXP_CHECK_MD_OP(exp, free_lustre_md);
2048 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
2049 RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md));
2052 static inline int md_setxattr(struct obd_export *exp,
2053 const struct lu_fid *fid, struct obd_capa *oc,
2054 obd_valid valid, const char *name,
2055 const char *input, int input_size,
2056 int output_size, int flags, __u32 suppgid,
2057 struct ptlrpc_request **request)
2060 EXP_CHECK_MD_OP(exp, setxattr);
2061 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
2062 RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, oc, valid, name, input,
2063 input_size, output_size, flags,
2067 static inline int md_getxattr(struct obd_export *exp,
2068 const struct lu_fid *fid, struct obd_capa *oc,
2069 obd_valid valid, const char *name,
2070 const char *input, int input_size,
2071 int output_size, int flags,
2072 struct ptlrpc_request **request)
2075 EXP_CHECK_MD_OP(exp, getxattr);
2076 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
2077 RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, oc, valid, name, input,
2078 input_size, output_size, flags,
2082 static inline int md_set_open_replay_data(struct obd_export *exp,
2083 struct obd_client_handle *och,
2084 struct ptlrpc_request *open_req)
2087 EXP_CHECK_MD_OP(exp, set_open_replay_data);
2088 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
2089 RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, open_req));
2092 static inline int md_clear_open_replay_data(struct obd_export *exp,
2093 struct obd_client_handle *och)
2096 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
2097 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
2098 RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och));
2101 static inline int md_set_lock_data(struct obd_export *exp,
2102 __u64 *lockh, void *data, __u64 *bits)
2105 EXP_CHECK_MD_OP(exp, set_lock_data);
2106 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
2107 RETURN(MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits));
2110 static inline int md_cancel_unused(struct obd_export *exp,
2111 const struct lu_fid *fid,
2112 ldlm_policy_data_t *policy,
2114 ldlm_cancel_flags_t flags,
2120 EXP_CHECK_MD_OP(exp, cancel_unused);
2121 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
2123 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
2128 static inline ldlm_mode_t md_lock_match(struct obd_export *exp, __u64 flags,
2129 const struct lu_fid *fid,
2131 ldlm_policy_data_t *policy,
2133 struct lustre_handle *lockh)
2136 EXP_CHECK_MD_OP(exp, lock_match);
2137 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
2138 RETURN(MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
2139 policy, mode, lockh));
2142 static inline int md_init_ea_size(struct obd_export *exp, int easize,
2143 int def_asize, int cookiesize)
2146 EXP_CHECK_MD_OP(exp, init_ea_size);
2147 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
2148 RETURN(MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
2152 static inline int md_get_remote_perm(struct obd_export *exp,
2153 const struct lu_fid *fid,
2154 struct obd_capa *oc, __u32 suppgid,
2155 struct ptlrpc_request **request)
2158 EXP_CHECK_MD_OP(exp, get_remote_perm);
2159 EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm);
2160 RETURN(MDP(exp->exp_obd, get_remote_perm)(exp, fid, oc, suppgid,
2164 static inline int md_renew_capa(struct obd_export *exp, struct obd_capa *ocapa,
2169 EXP_CHECK_MD_OP(exp, renew_capa);
2170 EXP_MD_COUNTER_INCREMENT(exp, renew_capa);
2171 rc = MDP(exp->exp_obd, renew_capa)(exp, ocapa, cb);
2175 static inline int md_unpack_capa(struct obd_export *exp,
2176 struct ptlrpc_request *req,
2177 const struct req_msg_field *field,
2178 struct obd_capa **oc)
2182 EXP_CHECK_MD_OP(exp, unpack_capa);
2183 EXP_MD_COUNTER_INCREMENT(exp, unpack_capa);
2184 rc = MDP(exp->exp_obd, unpack_capa)(exp, req, field, oc);
2188 static inline int md_intent_getattr_async(struct obd_export *exp,
2189 struct md_enqueue_info *minfo,
2190 struct ldlm_enqueue_info *einfo)
2194 EXP_CHECK_MD_OP(exp, intent_getattr_async);
2195 EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
2196 rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo, einfo);
2200 static inline int md_revalidate_lock(struct obd_export *exp,
2201 struct lookup_intent *it,
2202 struct lu_fid *fid, __u64 *bits)
2206 EXP_CHECK_MD_OP(exp, revalidate_lock);
2207 EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
2208 rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits);
2213 /* OBD Metadata Support */
2215 extern int obd_init_caches(void);
2216 extern void obd_cleanup_caches(void);
2218 /* support routines */
2219 extern struct kmem_cache *obdo_cachep;
2221 #define OBDO_ALLOC(ptr) \
2223 OBD_SLAB_ALLOC_PTR_GFP((ptr), obdo_cachep, __GFP_IO); \
2226 #define OBDO_FREE(ptr) \
2228 OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
2232 static inline void obdo2fid(struct obdo *oa, struct lu_fid *fid)
2234 /* something here */
2237 static inline void fid2obdo(struct lu_fid *fid, struct obdo *oa)
2239 /* something here */
2242 typedef int (*register_lwp_cb)(void *data);
2244 struct lwp_register_item {
2245 struct obd_export **lri_exp;
2246 register_lwp_cb lri_cb_func;
2248 cfs_list_t lri_list;
2249 char lri_name[MTI_NAME_MAXLEN];
2252 /* I'm as embarrassed about this as you are.
2254 * <shaver> // XXX do not look into _superhack with remaining eye
2255 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
2256 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
2259 #ifdef HAVE_SERVER_SUPPORT
2260 int lustre_register_lwp_item(const char *lwpname, struct obd_export **exp,
2261 register_lwp_cb cb_func, void *cb_data);
2262 void lustre_deregister_lwp_item(struct obd_export **exp);
2263 int tgt_name2lwpname(const char *tgt_name, char *lwp_name);
2264 #endif /* HAVE_SERVER_SUPPORT */
2267 extern void obd_sysctl_init (void);
2268 extern void obd_sysctl_clean (void);
2271 typedef __u8 class_uuid_t[16];
2272 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
2275 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
2276 int class_add_uuid(const char *uuid, __u64 nid);
2277 int class_del_uuid (const char *uuid);
2278 int class_check_uuid(struct obd_uuid *uuid, __u64 nid);
2279 void class_init_uuidlist(void);
2280 void class_exit_uuidlist(void);
2283 int mea_name2idx(struct lmv_stripe_md *mea, const char *name, int namelen);
2284 int raw_name2idx(int hashtype, int count, const char *name, int namelen);
2287 #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
2289 #endif /* __LINUX_OBD_CLASS_H */