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);
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 static inline struct dentry *
1194 obd_lvfs_fid2dentry(struct obd_export *exp, struct ost_id *oi, __u32 gen)
1196 struct lvfs_run_ctxt *ctxt = &exp->exp_obd->obd_lvfs_ctxt;
1197 LASSERT(exp->exp_obd);
1199 return ctxt->cb_ops.l_fid2dentry(ostid_id(oi), gen, ostid_seq(oi),
1203 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1204 * If the cache is older than @max_age we will get a new value from the
1205 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1206 static inline int obd_statfs_async(struct obd_export *exp,
1207 struct obd_info *oinfo,
1209 struct ptlrpc_request_set *rqset)
1212 struct obd_device *obd;
1215 if (exp == NULL || exp->exp_obd == NULL)
1219 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1220 OBD_COUNTER_INCREMENT(obd, statfs);
1222 CDEBUG(D_SUPER, "%s: osfs %p age "LPU64", max_age "LPU64"\n",
1223 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
1224 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1225 rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset);
1227 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1228 " objects "LPU64"/"LPU64"\n",
1229 obd->obd_name, &obd->obd_osfs,
1230 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1231 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1232 spin_lock(&obd->obd_osfs_lock);
1233 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
1234 spin_unlock(&obd->obd_osfs_lock);
1235 oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
1236 if (oinfo->oi_cb_up)
1237 oinfo->oi_cb_up(oinfo, 0);
1242 static inline int obd_statfs_rqset(struct obd_export *exp,
1243 struct obd_statfs *osfs, __u64 max_age,
1246 struct ptlrpc_request_set *set = NULL;
1247 struct obd_info oinfo = { { { 0 } } };
1251 set = ptlrpc_prep_set();
1255 oinfo.oi_osfs = osfs;
1256 oinfo.oi_flags = flags;
1257 rc = obd_statfs_async(exp, &oinfo, max_age, set);
1259 rc = ptlrpc_set_wait(set);
1260 ptlrpc_set_destroy(set);
1264 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1265 * If the cache is older than @max_age we will get a new value from the
1266 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1267 static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
1268 struct obd_statfs *osfs, __u64 max_age,
1272 struct obd_device *obd = exp->exp_obd;
1278 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1279 OBD_COUNTER_INCREMENT(obd, statfs);
1281 CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n",
1282 obd->obd_osfs_age, max_age);
1283 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1284 rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
1286 spin_lock(&obd->obd_osfs_lock);
1287 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1288 obd->obd_osfs_age = cfs_time_current_64();
1289 spin_unlock(&obd->obd_osfs_lock);
1292 CDEBUG(D_SUPER, "%s: use %p cache blocks "LPU64"/"LPU64
1293 " objects "LPU64"/"LPU64"\n",
1294 obd->obd_name, &obd->obd_osfs,
1295 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1296 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1297 spin_lock(&obd->obd_osfs_lock);
1298 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1299 spin_unlock(&obd->obd_osfs_lock);
1304 static inline int obd_sync_rqset(struct obd_export *exp, struct obd_info *oinfo,
1305 obd_size start, obd_size end)
1307 struct ptlrpc_request_set *set = NULL;
1311 OBD_CHECK_DT_OP(exp->exp_obd, sync, -EOPNOTSUPP);
1312 EXP_COUNTER_INCREMENT(exp, sync);
1314 set = ptlrpc_prep_set();
1318 rc = OBP(exp->exp_obd, sync)(NULL, exp, oinfo, start, end, set);
1320 rc = ptlrpc_set_wait(set);
1321 ptlrpc_set_destroy(set);
1325 static inline int obd_sync(const struct lu_env *env, struct obd_export *exp,
1326 struct obd_info *oinfo, obd_size start, obd_size end,
1327 struct ptlrpc_request_set *set)
1332 OBD_CHECK_DT_OP(exp->exp_obd, sync, -EOPNOTSUPP);
1333 EXP_COUNTER_INCREMENT(exp, sync);
1335 rc = OBP(exp->exp_obd, sync)(env, exp, oinfo, start, end, set);
1339 static inline int obd_punch_rqset(struct obd_export *exp,
1340 struct obd_info *oinfo,
1341 struct obd_trans_info *oti)
1343 struct ptlrpc_request_set *set = NULL;
1347 EXP_CHECK_DT_OP(exp, punch);
1348 EXP_COUNTER_INCREMENT(exp, punch);
1350 set = ptlrpc_prep_set();
1354 rc = OBP(exp->exp_obd, punch)(NULL, exp, oinfo, oti, set);
1356 rc = ptlrpc_set_wait(set);
1357 ptlrpc_set_destroy(set);
1361 static inline int obd_punch(const struct lu_env *env, struct obd_export *exp,
1362 struct obd_info *oinfo, struct obd_trans_info *oti,
1363 struct ptlrpc_request_set *rqset)
1368 EXP_CHECK_DT_OP(exp, punch);
1369 EXP_COUNTER_INCREMENT(exp, punch);
1371 rc = OBP(exp->exp_obd, punch)(env, exp, oinfo, oti, rqset);
1375 static inline int obd_brw(int cmd, struct obd_export *exp,
1376 struct obd_info *oinfo, obd_count oa_bufs,
1377 struct brw_page *pg, struct obd_trans_info *oti)
1382 EXP_CHECK_DT_OP(exp, brw);
1383 EXP_COUNTER_INCREMENT(exp, brw);
1385 if (!(cmd & (OBD_BRW_RWMASK | OBD_BRW_CHECK))) {
1386 CERROR("obd_brw: cmd must be OBD_BRW_READ, OBD_BRW_WRITE, "
1387 "or OBD_BRW_CHECK\n");
1391 rc = OBP(exp->exp_obd, brw)(cmd, exp, oinfo, oa_bufs, pg, oti);
1395 static inline int obd_preprw(const struct lu_env *env, int cmd,
1396 struct obd_export *exp, struct obdo *oa,
1397 int objcount, struct obd_ioobj *obj,
1398 struct niobuf_remote *remote, int *pages,
1399 struct niobuf_local *local,
1400 struct obd_trans_info *oti,
1401 struct lustre_capa *capa)
1406 EXP_CHECK_DT_OP(exp, preprw);
1407 EXP_COUNTER_INCREMENT(exp, preprw);
1409 rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote,
1410 pages, local, oti, capa);
1414 static inline int obd_commitrw(const struct lu_env *env, int cmd,
1415 struct obd_export *exp, struct obdo *oa,
1416 int objcount, struct obd_ioobj *obj,
1417 struct niobuf_remote *rnb, int pages,
1418 struct niobuf_local *local,
1419 struct obd_trans_info *oti, int rc)
1423 EXP_CHECK_DT_OP(exp, commitrw);
1424 EXP_COUNTER_INCREMENT(exp, commitrw);
1426 rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj,
1427 rnb, pages, local, oti, rc);
1431 static inline int obd_merge_lvb(struct obd_export *exp,
1432 struct lov_stripe_md *lsm,
1433 struct ost_lvb *lvb, int kms_only)
1438 EXP_CHECK_DT_OP(exp, merge_lvb);
1439 EXP_COUNTER_INCREMENT(exp, merge_lvb);
1441 rc = OBP(exp->exp_obd, merge_lvb)(exp, lsm, lvb, kms_only);
1445 static inline int obd_adjust_kms(struct obd_export *exp,
1446 struct lov_stripe_md *lsm, obd_off size,
1452 EXP_CHECK_DT_OP(exp, adjust_kms);
1453 EXP_COUNTER_INCREMENT(exp, adjust_kms);
1455 rc = OBP(exp->exp_obd, adjust_kms)(exp, lsm, size, shrink);
1459 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1460 int len, void *karg, void *uarg)
1465 EXP_CHECK_DT_OP(exp, iocontrol);
1466 EXP_COUNTER_INCREMENT(exp, iocontrol);
1468 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1472 static inline int obd_enqueue_rqset(struct obd_export *exp,
1473 struct obd_info *oinfo,
1474 struct ldlm_enqueue_info *einfo)
1476 struct ptlrpc_request_set *set = NULL;
1480 EXP_CHECK_DT_OP(exp, enqueue);
1481 EXP_COUNTER_INCREMENT(exp, enqueue);
1483 set = ptlrpc_prep_set();
1487 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1489 rc = ptlrpc_set_wait(set);
1490 ptlrpc_set_destroy(set);
1494 static inline int obd_enqueue(struct obd_export *exp,
1495 struct obd_info *oinfo,
1496 struct ldlm_enqueue_info *einfo,
1497 struct ptlrpc_request_set *set)
1502 EXP_CHECK_DT_OP(exp, enqueue);
1503 EXP_COUNTER_INCREMENT(exp, enqueue);
1505 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1509 static inline int obd_change_cbdata(struct obd_export *exp,
1510 struct lov_stripe_md *lsm,
1511 ldlm_iterator_t it, void *data)
1516 EXP_CHECK_DT_OP(exp, change_cbdata);
1517 EXP_COUNTER_INCREMENT(exp, change_cbdata);
1519 rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data);
1523 static inline int obd_find_cbdata(struct obd_export *exp,
1524 struct lov_stripe_md *lsm,
1525 ldlm_iterator_t it, void *data)
1530 EXP_CHECK_DT_OP(exp, find_cbdata);
1531 EXP_COUNTER_INCREMENT(exp, find_cbdata);
1533 rc = OBP(exp->exp_obd, find_cbdata)(exp, lsm, it, data);
1537 static inline int obd_cancel(struct obd_export *exp,
1538 struct lov_stripe_md *ea, __u32 mode,
1539 struct lustre_handle *lockh)
1544 EXP_CHECK_DT_OP(exp, cancel);
1545 EXP_COUNTER_INCREMENT(exp, cancel);
1547 rc = OBP(exp->exp_obd, cancel)(exp, ea, mode, lockh);
1551 static inline int obd_cancel_unused(struct obd_export *exp,
1552 struct lov_stripe_md *ea,
1553 ldlm_cancel_flags_t flags,
1559 EXP_CHECK_DT_OP(exp, cancel_unused);
1560 EXP_COUNTER_INCREMENT(exp, cancel_unused);
1562 rc = OBP(exp->exp_obd, cancel_unused)(exp, ea, flags, opaque);
1566 static inline int obd_pin(struct obd_export *exp, const struct lu_fid *fid,
1567 struct obd_capa *oc, struct obd_client_handle *handle,
1573 EXP_CHECK_DT_OP(exp, pin);
1574 EXP_COUNTER_INCREMENT(exp, pin);
1576 rc = OBP(exp->exp_obd, pin)(exp, fid, oc, handle, flag);
1580 static inline int obd_unpin(struct obd_export *exp,
1581 struct obd_client_handle *handle, int flag)
1586 EXP_CHECK_DT_OP(exp, unpin);
1587 EXP_COUNTER_INCREMENT(exp, unpin);
1589 rc = OBP(exp->exp_obd, unpin)(exp, handle, flag);
1594 static inline void obd_import_event(struct obd_device *obd,
1595 struct obd_import *imp,
1596 enum obd_import_event event)
1600 CERROR("NULL device\n");
1604 if (obd->obd_set_up && OBP(obd, import_event)) {
1605 OBD_COUNTER_INCREMENT(obd, import_event);
1606 OBP(obd, import_event)(obd, imp, event);
1611 static inline int obd_llog_connect(struct obd_export *exp,
1612 struct llogd_conn_body *body)
1617 OBD_CHECK_DT_OP(exp->exp_obd, llog_connect, 0);
1618 EXP_COUNTER_INCREMENT(exp, llog_connect);
1620 rc = OBP(exp->exp_obd, llog_connect)(exp, body);
1625 static inline int obd_notify(struct obd_device *obd,
1626 struct obd_device *watched,
1627 enum obd_notify_event ev,
1634 /* the check for async_recov is a complete hack - I'm hereby
1635 overloading the meaning to also mean "this was called from
1636 mds_postsetup". I know that my mds is able to handle notifies
1637 by this point, and it needs to get them to execute mds_postrecov. */
1638 if (!obd->obd_set_up && !obd->obd_async_recov) {
1639 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1643 if (!OBP(obd, notify)) {
1644 CDEBUG(D_HA, "obd %s has no notify handler\n", obd->obd_name);
1648 OBD_COUNTER_INCREMENT(obd, notify);
1649 rc = OBP(obd, notify)(obd, watched, ev, data);
1653 static inline int obd_notify_observer(struct obd_device *observer,
1654 struct obd_device *observed,
1655 enum obd_notify_event ev,
1661 struct obd_notify_upcall *onu;
1663 if (observer->obd_observer)
1664 rc1 = obd_notify(observer->obd_observer, observed, ev, data);
1668 * Also, call non-obd listener, if any
1670 onu = &observer->obd_upcall;
1671 if (onu->onu_upcall != NULL)
1672 rc2 = onu->onu_upcall(observer, observed, ev,
1673 onu->onu_owner, NULL);
1677 return rc1 ? rc1 : rc2;
1680 static inline int obd_quotacheck(struct obd_export *exp,
1681 struct obd_quotactl *oqctl)
1686 EXP_CHECK_DT_OP(exp, quotacheck);
1687 EXP_COUNTER_INCREMENT(exp, quotacheck);
1689 rc = OBP(exp->exp_obd, quotacheck)(exp->exp_obd, exp, oqctl);
1693 static inline int obd_quotactl(struct obd_export *exp,
1694 struct obd_quotactl *oqctl)
1699 EXP_CHECK_DT_OP(exp, quotactl);
1700 EXP_COUNTER_INCREMENT(exp, quotactl);
1702 rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl);
1706 static inline int obd_health_check(const struct lu_env *env,
1707 struct obd_device *obd)
1709 /* returns: 0 on healthy
1710 * >0 on unhealthy + reason code/flag
1711 * however the only suppored reason == 1 right now
1712 * We'll need to define some better reasons
1713 * or flags in the future.
1719 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1720 if (obd == NULL || !OBT(obd)) {
1721 CERROR("cleaned up obd\n");
1722 RETURN(-EOPNOTSUPP);
1724 if (!obd->obd_set_up || obd->obd_stopping)
1726 if (!OBP(obd, health_check))
1729 rc = OBP(obd, health_check)(env, obd);
1733 static inline int obd_register_observer(struct obd_device *obd,
1734 struct obd_device *observer)
1738 down_write(&obd->obd_observer_link_sem);
1739 if (obd->obd_observer && observer) {
1740 up_write(&obd->obd_observer_link_sem);
1743 obd->obd_observer = observer;
1744 up_write(&obd->obd_observer_link_sem);
1748 static inline int obd_pin_observer(struct obd_device *obd,
1749 struct obd_device **observer)
1752 down_read(&obd->obd_observer_link_sem);
1753 if (!obd->obd_observer) {
1755 up_read(&obd->obd_observer_link_sem);
1758 *observer = obd->obd_observer;
1762 static inline int obd_unpin_observer(struct obd_device *obd)
1765 up_read(&obd->obd_observer_link_sem);
1770 static inline int obd_register_page_removal_cb(struct obd_export *exp,
1771 obd_page_removal_cb_t cb,
1772 obd_pin_extent_cb pin_cb)
1777 OBD_CHECK_DT_OP(exp->exp_obd, register_page_removal_cb, 0);
1778 OBD_COUNTER_INCREMENT(exp->exp_obd, register_page_removal_cb);
1780 rc = OBP(exp->exp_obd, register_page_removal_cb)(exp, cb, pin_cb);
1784 static inline int obd_unregister_page_removal_cb(struct obd_export *exp,
1785 obd_page_removal_cb_t cb)
1790 OBD_CHECK_DT_OP(exp->exp_obd, unregister_page_removal_cb, 0);
1791 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_page_removal_cb);
1793 rc = OBP(exp->exp_obd, unregister_page_removal_cb)(exp, cb);
1797 static inline int obd_register_lock_cancel_cb(struct obd_export *exp,
1798 obd_lock_cancel_cb cb)
1803 OBD_CHECK_DT_OP(exp->exp_obd, register_lock_cancel_cb, 0);
1804 OBD_COUNTER_INCREMENT(exp->exp_obd, register_lock_cancel_cb);
1806 rc = OBP(exp->exp_obd, register_lock_cancel_cb)(exp, cb);
1810 static inline int obd_unregister_lock_cancel_cb(struct obd_export *exp,
1811 obd_lock_cancel_cb cb)
1816 OBD_CHECK_DT_OP(exp->exp_obd, unregister_lock_cancel_cb, 0);
1817 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_lock_cancel_cb);
1819 rc = OBP(exp->exp_obd, unregister_lock_cancel_cb)(exp, cb);
1824 /* metadata helpers */
1825 static inline int md_getstatus(struct obd_export *exp,
1826 struct lu_fid *fid, struct obd_capa **pc)
1831 EXP_CHECK_MD_OP(exp, getstatus);
1832 EXP_MD_COUNTER_INCREMENT(exp, getstatus);
1833 rc = MDP(exp->exp_obd, getstatus)(exp, fid, pc);
1837 static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data,
1838 struct ptlrpc_request **request)
1842 EXP_CHECK_MD_OP(exp, getattr);
1843 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1844 rc = MDP(exp->exp_obd, getattr)(exp, op_data, request);
1848 static inline int md_null_inode(struct obd_export *exp,
1849 const struct lu_fid *fid)
1853 EXP_CHECK_MD_OP(exp, null_inode);
1854 EXP_MD_COUNTER_INCREMENT(exp, null_inode);
1855 rc = MDP(exp->exp_obd, null_inode)(exp, fid);
1859 static inline int md_find_cbdata(struct obd_export *exp,
1860 const struct lu_fid *fid,
1861 ldlm_iterator_t it, void *data)
1865 EXP_CHECK_MD_OP(exp, find_cbdata);
1866 EXP_MD_COUNTER_INCREMENT(exp, find_cbdata);
1867 rc = MDP(exp->exp_obd, find_cbdata)(exp, fid, it, data);
1871 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1872 struct md_open_data *mod,
1873 struct ptlrpc_request **request)
1877 EXP_CHECK_MD_OP(exp, close);
1878 EXP_MD_COUNTER_INCREMENT(exp, close);
1879 rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
1883 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1884 const void *data, int datalen, int mode, __u32 uid,
1885 __u32 gid, cfs_cap_t cap_effective, __u64 rdev,
1886 struct ptlrpc_request **request)
1890 EXP_CHECK_MD_OP(exp, create);
1891 EXP_MD_COUNTER_INCREMENT(exp, create);
1892 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1893 uid, gid, cap_effective, rdev, request);
1897 static inline int md_done_writing(struct obd_export *exp,
1898 struct md_op_data *op_data,
1899 struct md_open_data *mod)
1903 EXP_CHECK_MD_OP(exp, done_writing);
1904 EXP_MD_COUNTER_INCREMENT(exp, done_writing);
1905 rc = MDP(exp->exp_obd, done_writing)(exp, op_data, mod);
1909 static inline int md_enqueue(struct obd_export *exp,
1910 struct ldlm_enqueue_info *einfo,
1911 struct lookup_intent *it,
1912 struct md_op_data *op_data,
1913 struct lustre_handle *lockh,
1914 void *lmm, int lmmsize,
1915 struct ptlrpc_request **req,
1916 int extra_lock_flags)
1920 EXP_CHECK_MD_OP(exp, enqueue);
1921 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1922 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, it, op_data, lockh,
1923 lmm, lmmsize, req, extra_lock_flags);
1927 static inline int md_getattr_name(struct obd_export *exp,
1928 struct md_op_data *op_data,
1929 struct ptlrpc_request **request)
1933 EXP_CHECK_MD_OP(exp, getattr_name);
1934 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1935 rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request);
1939 static inline int md_intent_lock(struct obd_export *exp,
1940 struct md_op_data *op_data, void *lmm,
1941 int lmmsize, struct lookup_intent *it,
1942 int lookup_flags, struct ptlrpc_request **reqp,
1943 ldlm_blocking_callback cb_blocking,
1944 __u64 extra_lock_flags)
1948 EXP_CHECK_MD_OP(exp, intent_lock);
1949 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1950 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, lmm, lmmsize,
1951 it, lookup_flags, reqp, cb_blocking,
1956 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1957 struct ptlrpc_request **request)
1961 EXP_CHECK_MD_OP(exp, link);
1962 EXP_MD_COUNTER_INCREMENT(exp, link);
1963 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1967 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1968 const char *old, int oldlen, const char *new,
1969 int newlen, struct ptlrpc_request **request)
1973 EXP_CHECK_MD_OP(exp, rename);
1974 EXP_MD_COUNTER_INCREMENT(exp, rename);
1975 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
1980 static inline int md_is_subdir(struct obd_export *exp,
1981 const struct lu_fid *pfid,
1982 const struct lu_fid *cfid,
1983 struct ptlrpc_request **request)
1987 EXP_CHECK_MD_OP(exp, is_subdir);
1988 EXP_MD_COUNTER_INCREMENT(exp, is_subdir);
1989 rc = MDP(exp->exp_obd, is_subdir)(exp, pfid, cfid, request);
1993 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
1994 void *ea, int ealen, void *ea2, int ea2len,
1995 struct ptlrpc_request **request,
1996 struct md_open_data **mod)
2000 EXP_CHECK_MD_OP(exp, setattr);
2001 EXP_MD_COUNTER_INCREMENT(exp, setattr);
2002 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen,
2003 ea2, ea2len, request, mod);
2007 static inline int md_fsync(struct obd_export *exp, const struct lu_fid *fid,
2008 struct obd_capa *oc, struct ptlrpc_request **request)
2012 EXP_CHECK_MD_OP(exp, fsync);
2013 EXP_MD_COUNTER_INCREMENT(exp, fsync);
2014 rc = MDP(exp->exp_obd, fsync)(exp, fid, oc, request);
2018 static inline int md_readpage(struct obd_export *exp, struct md_op_data *opdata,
2019 struct page **pages,
2020 struct ptlrpc_request **request)
2024 EXP_CHECK_MD_OP(exp, readpage);
2025 EXP_MD_COUNTER_INCREMENT(exp, readpage);
2026 rc = MDP(exp->exp_obd, readpage)(exp, opdata, pages, request);
2030 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
2031 struct ptlrpc_request **request)
2035 EXP_CHECK_MD_OP(exp, unlink);
2036 EXP_MD_COUNTER_INCREMENT(exp, unlink);
2037 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
2041 static inline int md_get_lustre_md(struct obd_export *exp,
2042 struct ptlrpc_request *req,
2043 struct obd_export *dt_exp,
2044 struct obd_export *md_exp,
2045 struct lustre_md *md)
2048 EXP_CHECK_MD_OP(exp, get_lustre_md);
2049 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
2050 RETURN(MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md));
2053 static inline int md_free_lustre_md(struct obd_export *exp,
2054 struct lustre_md *md)
2057 EXP_CHECK_MD_OP(exp, free_lustre_md);
2058 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
2059 RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md));
2062 static inline int md_setxattr(struct obd_export *exp,
2063 const struct lu_fid *fid, struct obd_capa *oc,
2064 obd_valid valid, const char *name,
2065 const char *input, int input_size,
2066 int output_size, int flags, __u32 suppgid,
2067 struct ptlrpc_request **request)
2070 EXP_CHECK_MD_OP(exp, setxattr);
2071 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
2072 RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, oc, valid, name, input,
2073 input_size, output_size, flags,
2077 static inline int md_getxattr(struct obd_export *exp,
2078 const struct lu_fid *fid, struct obd_capa *oc,
2079 obd_valid valid, const char *name,
2080 const char *input, int input_size,
2081 int output_size, int flags,
2082 struct ptlrpc_request **request)
2085 EXP_CHECK_MD_OP(exp, getxattr);
2086 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
2087 RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, oc, valid, name, input,
2088 input_size, output_size, flags,
2092 static inline int md_set_open_replay_data(struct obd_export *exp,
2093 struct obd_client_handle *och,
2094 struct ptlrpc_request *open_req)
2097 EXP_CHECK_MD_OP(exp, set_open_replay_data);
2098 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
2099 RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, open_req));
2102 static inline int md_clear_open_replay_data(struct obd_export *exp,
2103 struct obd_client_handle *och)
2106 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
2107 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
2108 RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och));
2111 static inline int md_set_lock_data(struct obd_export *exp,
2112 __u64 *lockh, void *data, __u64 *bits)
2115 EXP_CHECK_MD_OP(exp, set_lock_data);
2116 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
2117 RETURN(MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits));
2120 static inline int md_cancel_unused(struct obd_export *exp,
2121 const struct lu_fid *fid,
2122 ldlm_policy_data_t *policy,
2124 ldlm_cancel_flags_t flags,
2130 EXP_CHECK_MD_OP(exp, cancel_unused);
2131 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
2133 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
2138 static inline ldlm_mode_t md_lock_match(struct obd_export *exp, __u64 flags,
2139 const struct lu_fid *fid,
2141 ldlm_policy_data_t *policy,
2143 struct lustre_handle *lockh)
2146 EXP_CHECK_MD_OP(exp, lock_match);
2147 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
2148 RETURN(MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
2149 policy, mode, lockh));
2152 static inline int md_init_ea_size(struct obd_export *exp, int easize,
2153 int def_asize, int cookiesize)
2156 EXP_CHECK_MD_OP(exp, init_ea_size);
2157 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
2158 RETURN(MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
2162 static inline int md_get_remote_perm(struct obd_export *exp,
2163 const struct lu_fid *fid,
2164 struct obd_capa *oc, __u32 suppgid,
2165 struct ptlrpc_request **request)
2168 EXP_CHECK_MD_OP(exp, get_remote_perm);
2169 EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm);
2170 RETURN(MDP(exp->exp_obd, get_remote_perm)(exp, fid, oc, suppgid,
2174 static inline int md_renew_capa(struct obd_export *exp, struct obd_capa *ocapa,
2179 EXP_CHECK_MD_OP(exp, renew_capa);
2180 EXP_MD_COUNTER_INCREMENT(exp, renew_capa);
2181 rc = MDP(exp->exp_obd, renew_capa)(exp, ocapa, cb);
2185 static inline int md_unpack_capa(struct obd_export *exp,
2186 struct ptlrpc_request *req,
2187 const struct req_msg_field *field,
2188 struct obd_capa **oc)
2192 EXP_CHECK_MD_OP(exp, unpack_capa);
2193 EXP_MD_COUNTER_INCREMENT(exp, unpack_capa);
2194 rc = MDP(exp->exp_obd, unpack_capa)(exp, req, field, oc);
2198 static inline int md_intent_getattr_async(struct obd_export *exp,
2199 struct md_enqueue_info *minfo,
2200 struct ldlm_enqueue_info *einfo)
2204 EXP_CHECK_MD_OP(exp, intent_getattr_async);
2205 EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
2206 rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo, einfo);
2210 static inline int md_revalidate_lock(struct obd_export *exp,
2211 struct lookup_intent *it,
2212 struct lu_fid *fid, __u64 *bits)
2216 EXP_CHECK_MD_OP(exp, revalidate_lock);
2217 EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
2218 rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits);
2223 /* OBD Metadata Support */
2225 extern int obd_init_caches(void);
2226 extern void obd_cleanup_caches(void);
2228 /* support routines */
2229 extern struct kmem_cache *obdo_cachep;
2231 #define OBDO_ALLOC(ptr) \
2233 OBD_SLAB_ALLOC_PTR_GFP((ptr), obdo_cachep, __GFP_IO); \
2236 #define OBDO_FREE(ptr) \
2238 OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
2242 static inline void obdo2fid(struct obdo *oa, struct lu_fid *fid)
2244 /* something here */
2247 static inline void fid2obdo(struct lu_fid *fid, struct obdo *oa)
2249 /* something here */
2252 typedef int (*register_lwp_cb)(void *data);
2254 struct lwp_register_item {
2255 struct obd_export **lri_exp;
2256 register_lwp_cb lri_cb_func;
2258 cfs_list_t lri_list;
2259 char lri_name[MTI_NAME_MAXLEN];
2262 /* I'm as embarrassed about this as you are.
2264 * <shaver> // XXX do not look into _superhack with remaining eye
2265 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
2266 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
2269 #ifdef HAVE_SERVER_SUPPORT
2270 int lustre_register_lwp_item(const char *lwpname, struct obd_export **exp,
2271 register_lwp_cb cb_func, void *cb_data);
2272 void lustre_deregister_lwp_item(struct obd_export **exp);
2273 int tgt_name2lwpname(const char *tgt_name, char *lwp_name);
2274 #endif /* HAVE_SERVER_SUPPORT */
2277 extern void obd_sysctl_init (void);
2278 extern void obd_sysctl_clean (void);
2281 typedef __u8 class_uuid_t[16];
2282 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
2285 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
2286 int class_add_uuid(const char *uuid, __u64 nid);
2287 int class_del_uuid (const char *uuid);
2288 int class_check_uuid(struct obd_uuid *uuid, __u64 nid);
2289 void class_init_uuidlist(void);
2290 void class_exit_uuidlist(void);
2293 int mea_name2idx(struct lmv_stripe_md *mea, const char *name, int namelen);
2294 int raw_name2idx(int hashtype, int count, const char *name, int namelen);
2297 #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
2299 #endif /* __LINUX_OBD_CLASS_H */