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 *, bool enable_proc,
90 struct lprocfs_seq_vars *module_vars,
91 #ifndef HAVE_ONLY_PROCFS_SEQ
92 struct lprocfs_vars *,
94 const char *nm, struct lu_device_type *ldt);
95 int class_unregister_type(const char *nm);
97 struct obd_device *class_newdev(const char *type_name, const char *name);
98 void class_release_dev(struct obd_device *obd);
100 int class_name2dev(const char *name);
101 struct obd_device *class_name2obd(const char *name);
102 int class_uuid2dev(struct obd_uuid *uuid);
103 struct obd_device *class_uuid2obd(struct obd_uuid *uuid);
104 void class_obd_list(void);
105 struct obd_device * class_find_client_obd(struct obd_uuid *tgt_uuid,
106 const char * typ_name,
107 struct obd_uuid *grp_uuid);
108 struct obd_device * class_devices_in_group(struct obd_uuid *grp_uuid,
110 struct obd_device * class_num2obd(int num);
111 int get_devices_count(void);
113 int class_notify_sptlrpc_conf(const char *fsname, int namelen);
115 char *obd_export_nid2str(struct obd_export *exp);
117 int obd_export_evict_by_nid(struct obd_device *obd, const char *nid);
118 int obd_export_evict_by_uuid(struct obd_device *obd, const char *uuid);
119 int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep);
121 int obd_zombie_impexp_init(void);
122 void obd_zombie_impexp_stop(void);
123 void obd_zombie_impexp_cull(void);
124 void obd_zombie_barrier(void);
125 void obd_exports_barrier(struct obd_device *obd);
126 int kuc_len(int payload_len);
127 struct kuc_hdr * kuc_ptr(void *p);
128 int kuc_ispayload(void *p);
129 void *kuc_alloc(int payload_len, int transport, int type);
130 void kuc_free(void *p, int payload_len);
131 int obd_get_request_slot(struct client_obd *cli);
132 void obd_put_request_slot(struct client_obd *cli);
133 __u32 obd_get_max_rpcs_in_flight(struct client_obd *cli);
134 int obd_set_max_rpcs_in_flight(struct client_obd *cli, __u32 max);
138 typedef int (*llog_cb_t)(const struct lu_env *, struct llog_handle *,
139 struct llog_rec_hdr *, void *);
141 struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg,
142 const char *new_name);
143 int class_process_config(struct lustre_cfg *lcfg);
144 #ifndef HAVE_ONLY_PROCFS_SEQ
145 int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
146 struct lustre_cfg *lcfg, void *data);
148 int class_process_proc_seq_param(char *prefix, struct lprocfs_seq_vars *lvars,
149 struct lustre_cfg *lcfg, void *data);
150 int class_attach(struct lustre_cfg *lcfg);
151 int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
152 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg);
153 int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg);
154 struct obd_device *class_incref(struct obd_device *obd,
155 const char *scope, const void *source);
156 void class_decref(struct obd_device *obd,
157 const char *scope, const void *source);
158 void dump_exports(struct obd_device *obd, int locks);
159 int class_config_llog_handler(const struct lu_env *env,
160 struct llog_handle *handle,
161 struct llog_rec_hdr *rec, void *data);
162 int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg);
163 int class_add_uuid(const char *uuid, __u64 nid);
165 #define CFG_F_START 0x01 /* Set when we start updating from a log */
166 #define CFG_F_MARKER 0x02 /* We are within a maker */
167 #define CFG_F_SKIP 0x04 /* We should ignore this cfg command */
168 #define CFG_F_COMPAT146 0x08 /* Allow old-style logs */
169 #define CFG_F_EXCLUDE 0x10 /* OST exclusion list */
171 /* Passed as data param to class_config_parse_llog */
172 struct config_llog_instance {
175 struct super_block *cfg_sb;
176 struct obd_uuid cfg_uuid;
177 llog_cb_t cfg_callback;
178 int cfg_last_idx; /* for partial llog processing */
182 int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
183 char *name, struct config_llog_instance *cfg);
184 int class_config_dump_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
185 char *name, struct config_llog_instance *cfg);
189 CONFIG_T_SPTLRPC = 1,
190 CONFIG_T_RECOVER = 2,
195 #define PARAMS_FILENAME "params"
196 #define LCTL_UPCALL "lctl"
198 /* list of active configuration logs */
199 struct config_llog_data {
200 struct ldlm_res_id cld_resid;
201 struct config_llog_instance cld_cfg;
202 cfs_list_t cld_list_chain;
203 atomic_t cld_refcount;
204 struct config_llog_data *cld_sptlrpc;/* depended sptlrpc log */
205 struct config_llog_data *cld_params; /* common parameters log */
206 struct config_llog_data *cld_recover;/* imperative recover log */
207 struct obd_export *cld_mgcexp;
208 struct mutex cld_lock;
210 unsigned int cld_stopping:1, /* we were told to stop
212 cld_lostlock:1; /* lock not requeued */
216 struct lustre_profile {
223 struct lustre_profile *class_get_profile(const char * prof);
224 void class_del_profile(const char *prof);
225 void class_del_profiles(void);
227 #if LUSTRE_TRACKS_LOCK_EXP_REFS
229 void __class_export_add_lock_ref(struct obd_export *, struct ldlm_lock *);
230 void __class_export_del_lock_ref(struct obd_export *, struct ldlm_lock *);
231 extern void (*class_export_dump_hook)(struct obd_export *);
235 #define __class_export_add_lock_ref(exp, lock) do {} while(0)
236 #define __class_export_del_lock_ref(exp, lock) do {} while(0)
240 #define class_export_rpc_inc(exp) \
242 atomic_inc(&(exp)->exp_rpc_count); \
243 CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \
244 (exp), atomic_read(&(exp)->exp_rpc_count)); \
247 #define class_export_rpc_dec(exp) \
249 LASSERT_ATOMIC_POS(&exp->exp_rpc_count); \
250 atomic_dec(&(exp)->exp_rpc_count); \
251 CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \
252 (exp), atomic_read(&(exp)->exp_rpc_count)); \
255 #define class_export_lock_get(exp, lock) \
257 atomic_inc(&(exp)->exp_locks_count); \
258 __class_export_add_lock_ref(exp, lock); \
259 CDEBUG(D_INFO, "lock GETting export %p : new locks_count %d\n", \
260 (exp), atomic_read(&(exp)->exp_locks_count)); \
261 class_export_get(exp); \
264 #define class_export_lock_put(exp, lock) \
266 LASSERT_ATOMIC_POS(&exp->exp_locks_count); \
267 atomic_dec(&(exp)->exp_locks_count); \
268 __class_export_del_lock_ref(exp, lock); \
269 CDEBUG(D_INFO, "lock PUTting export %p : new locks_count %d\n", \
270 (exp), atomic_read(&(exp)->exp_locks_count)); \
271 class_export_put(exp); \
274 #define class_export_cb_get(exp) \
276 atomic_inc(&(exp)->exp_cb_count); \
277 CDEBUG(D_INFO, "callback GETting export %p : new cb_count %d\n",\
278 (exp), atomic_read(&(exp)->exp_cb_count)); \
279 class_export_get(exp); \
282 #define class_export_cb_put(exp) \
284 LASSERT_ATOMIC_POS(&exp->exp_cb_count); \
285 atomic_dec(&(exp)->exp_cb_count); \
286 CDEBUG(D_INFO, "callback PUTting export %p : new cb_count %d\n",\
287 (exp), atomic_read(&(exp)->exp_cb_count)); \
288 class_export_put(exp); \
292 struct obd_export *class_export_get(struct obd_export *exp);
293 void class_export_put(struct obd_export *exp);
294 struct obd_export *class_new_export(struct obd_device *obddev,
295 struct obd_uuid *cluuid);
296 void class_unlink_export(struct obd_export *exp);
298 struct obd_import *class_import_get(struct obd_import *);
299 void class_import_put(struct obd_import *);
300 struct obd_import *class_new_import(struct obd_device *obd);
301 void class_destroy_import(struct obd_import *exp);
303 struct obd_type *class_search_type(const char *name);
304 struct obd_type *class_get_type(const char *name);
305 void class_put_type(struct obd_type *type);
306 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
307 struct obd_uuid *cluuid);
308 int class_disconnect(struct obd_export *exp);
309 void class_fail_export(struct obd_export *exp);
310 int class_connected_export(struct obd_export *exp);
311 void class_disconnect_exports(struct obd_device *obddev);
312 int class_manual_cleanup(struct obd_device *obd);
313 void class_disconnect_stale_exports(struct obd_device *,
314 int (*test_export)(struct obd_export *));
315 static inline enum obd_option exp_flags_from_obd(struct obd_device *obd)
317 return ((obd->obd_fail ? OBD_OPT_FAILOVER : 0) |
318 (obd->obd_force ? OBD_OPT_FORCE : 0) |
319 (obd->obd_abort_recovery ? OBD_OPT_ABORT_RECOV : 0) |
323 #ifdef HAVE_SERVER_SUPPORT
324 static inline struct lu_target *class_exp2tgt(struct obd_export *exp)
326 LASSERT(exp->exp_obd);
327 return exp->exp_obd->u.obt.obt_lut;
330 static inline struct lr_server_data *class_server_data(struct obd_device *obd)
332 LASSERT(obd->u.obt.obt_lut);
333 return &obd->u.obt.obt_lut->lut_lsd;
337 void obdo_cpy_md(struct obdo *dst, struct obdo *src, obd_flag valid);
338 void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj);
339 void obdo_from_iattr(struct obdo *oa, struct iattr *attr,
340 unsigned int ia_valid);
341 void iattr_from_obdo(struct iattr *attr, struct obdo *oa, obd_flag valid);
342 void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, obd_flag valid);
343 void obdo_from_md(struct obdo *oa, struct md_op_data *op_data,
346 #define OBT(dev) (dev)->obd_type
347 #define OBP(dev, op) (dev)->obd_type->typ_dt_ops->o_ ## op
348 #define MDP(dev, op) (dev)->obd_type->typ_md_ops->m_ ## op
349 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
351 /* Ensure obd_setup: used for cleanup which must be called
352 while obd is stopping */
353 #define OBD_CHECK_DEV(obd) \
356 CERROR("NULL device\n"); \
361 /* ensure obd_setup and !obd_stopping */
362 #define OBD_CHECK_DEV_ACTIVE(obd) \
364 OBD_CHECK_DEV(obd); \
365 if (!(obd)->obd_set_up || (obd)->obd_stopping) { \
366 CERROR("Device %d not setup\n", \
374 #define OBD_COUNTER_OFFSET(op) \
375 ((offsetof(struct obd_ops, o_ ## op) - \
376 offsetof(struct obd_ops, o_iocontrol)) \
377 / sizeof(((struct obd_ops *)NULL)->o_iocontrol))
379 /* The '- 1' below is for o_owner. */
380 #define NUM_OBD_STATS \
381 (sizeof(struct obd_ops) / \
382 sizeof(((struct obd_ops *)NULL)->o_iocontrol) - 1)
384 #define OBD_COUNTER_INCREMENT(obd, op) \
385 lprocfs_counter_incr((obd)->obd_stats, \
386 (obd)->obd_cntr_base + OBD_COUNTER_OFFSET(op))
388 #define EXP_COUNTER_INCREMENT(exp, op) \
391 _off = (exp)->exp_obd->obd_cntr_base + OBD_COUNTER_OFFSET(op); \
392 lprocfs_counter_incr((exp)->exp_obd->obd_stats, _off); \
393 if ((exp)->exp_obd->obd_uses_nid_stats && \
394 (exp)->exp_nid_stats != NULL) \
395 lprocfs_counter_incr((exp)->exp_nid_stats->nid_stats, \
399 #define _MD_COUNTER_OFFSET(m_op) \
400 ((offsetof(struct md_ops, m_op) - \
401 offsetof(struct md_ops, MD_STATS_FIRST_OP)) / \
402 sizeof(((struct md_ops *)NULL)->MD_STATS_FIRST_OP))
404 #define MD_COUNTER_OFFSET(op) _MD_COUNTER_OFFSET(m_ ## op)
406 #define NUM_MD_STATS \
407 (_MD_COUNTER_OFFSET(MD_STATS_LAST_OP) - \
408 _MD_COUNTER_OFFSET(MD_STATS_FIRST_OP) + 1)
410 /* Note that we only increment md counters for ops whose offset is less
411 * than NUM_MD_STATS. This is explained in a comment in the definition
412 * of struct md_ops. */
413 #define EXP_MD_COUNTER_INCREMENT(exp, op) \
415 if (MD_COUNTER_OFFSET(op) < NUM_MD_STATS) \
416 lprocfs_counter_incr((exp)->exp_obd->obd_md_stats, \
417 (exp)->exp_obd->obd_md_cntr_base + \
418 MD_COUNTER_OFFSET(op)); \
422 #define OBD_COUNTER_OFFSET(op)
423 #define OBD_COUNTER_INCREMENT(obd, op)
424 #define EXP_COUNTER_INCREMENT(exp, op)
425 #define EXP_MD_COUNTER_INCREMENT(exp, op)
428 static inline int lprocfs_nid_ldlm_stats_init(struct nid_stat* tmp)
430 /* Always add in ldlm_stats */
431 tmp->nid_ldlm_stats = lprocfs_alloc_stats(LDLM_LAST_OPC - LDLM_FIRST_OPC
432 ,LPROCFS_STATS_FLAG_NOPERCPU);
433 if (tmp->nid_ldlm_stats == NULL)
436 lprocfs_init_ldlm_stats(tmp->nid_ldlm_stats);
438 return lprocfs_register_stats(tmp->nid_proc, "ldlm_stats",
439 tmp->nid_ldlm_stats);
442 #define EXP_CHECK_MD_OP(exp, op) \
444 if ((exp) == NULL) { \
445 CERROR("obd_" #op ": NULL export\n"); \
448 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
449 CERROR("obd_" #op ": cleaned up obd\n"); \
450 RETURN(-EOPNOTSUPP); \
452 if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
453 CERROR("obd_" #op ": dev %s/%d no operation\n", \
454 (exp)->exp_obd->obd_name, \
455 (exp)->exp_obd->obd_minor); \
456 RETURN(-EOPNOTSUPP); \
461 #define OBD_CHECK_DT_OP(obd, op, err) \
463 if (!OBT(obd) || !OBP((obd), op)) { \
465 CERROR("obd_" #op ": dev %d no operation\n", \
471 #define EXP_CHECK_DT_OP(exp, op) \
473 if ((exp) == NULL) { \
474 CERROR("obd_" #op ": NULL export\n"); \
477 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
478 CERROR("obd_" #op ": cleaned up obd\n"); \
479 RETURN(-EOPNOTSUPP); \
481 if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
482 CERROR("obd_" #op ": dev %d no operation\n", \
483 (exp)->exp_obd->obd_minor); \
484 RETURN(-EOPNOTSUPP); \
488 #define CTXT_CHECK_OP(ctxt, op, err) \
490 if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
492 CERROR("lop_" #op ": dev %d no operation\n", \
493 ctxt->loc_obd->obd_minor); \
498 static inline int class_devno_max(void)
500 return MAX_OBD_DEVICES;
503 static inline int obd_get_info(const struct lu_env *env,
504 struct obd_export *exp, __u32 keylen,
505 void *key, __u32 *vallen, void *val,
506 struct lov_stripe_md *lsm)
511 EXP_CHECK_DT_OP(exp, get_info);
512 EXP_COUNTER_INCREMENT(exp, get_info);
514 rc = OBP(exp->exp_obd, get_info)(env, exp, keylen, key, vallen, val,
519 static inline int obd_set_info_async(const struct lu_env *env,
520 struct obd_export *exp, obd_count keylen,
521 void *key, obd_count vallen, void *val,
522 struct ptlrpc_request_set *set)
527 EXP_CHECK_DT_OP(exp, set_info_async);
528 EXP_COUNTER_INCREMENT(exp, set_info_async);
530 rc = OBP(exp->exp_obd, set_info_async)(env, exp, keylen, key, vallen,
536 * obd-lu integration.
538 * Functionality is being moved into new lu_device-based layering, but some
539 * pieces of configuration process are still based on obd devices.
541 * Specifically, lu_device_type_operations::ldto_device_alloc() methods fully
542 * subsume ->o_setup() methods of obd devices they replace. The same for
543 * lu_device_operations::ldo_process_config() and ->o_process_config(). As a
544 * result, obd_setup() and obd_process_config() branch and call one XOR
547 * Yet neither lu_device_type_operations::ldto_device_fini() nor
548 * lu_device_type_operations::ldto_device_free() fully implement the
549 * functionality of ->o_precleanup() and ->o_cleanup() they override. Hence,
550 * obd_precleanup() and obd_cleanup() call both lu_device and obd operations.
553 #define DECLARE_LU_VARS(ldt, d) \
554 struct lu_device_type *ldt; \
557 static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
560 DECLARE_LU_VARS(ldt, d);
563 ldt = obd->obd_type->typ_lu;
565 struct lu_context session_ctx;
567 lu_context_init(&session_ctx, LCT_SESSION | LCT_SERVER_SESSION);
568 session_ctx.lc_thread = NULL;
569 lu_context_enter(&session_ctx);
571 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
573 env.le_ses = &session_ctx;
574 d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
583 lu_context_exit(&session_ctx);
584 lu_context_fini(&session_ctx);
587 OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
588 OBD_COUNTER_INCREMENT(obd, setup);
589 rc = OBP(obd, setup)(obd, cfg);
594 static inline int obd_precleanup(struct obd_device *obd,
595 enum obd_cleanup_stage cleanup_stage)
598 DECLARE_LU_VARS(ldt, d);
602 ldt = obd->obd_type->typ_lu;
604 if (ldt != NULL && d != NULL) {
605 if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
608 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
610 ldt->ldt_ops->ldto_device_fini(&env, d);
615 OBD_CHECK_DT_OP(obd, precleanup, 0);
616 OBD_COUNTER_INCREMENT(obd, precleanup);
618 rc = OBP(obd, precleanup)(obd, cleanup_stage);
622 static inline int obd_cleanup(struct obd_device *obd)
625 DECLARE_LU_VARS(ldt, d);
630 ldt = obd->obd_type->typ_lu;
632 if (ldt != NULL && d != NULL) {
635 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
637 ldt->ldt_ops->ldto_device_free(&env, d);
639 obd->obd_lu_dev = NULL;
642 OBD_CHECK_DT_OP(obd, cleanup, 0);
643 OBD_COUNTER_INCREMENT(obd, cleanup);
645 rc = OBP(obd, cleanup)(obd);
649 static inline void obd_cleanup_client_import(struct obd_device *obd)
653 /* If we set up but never connected, the
654 client import will not have been cleaned. */
655 down_write(&obd->u.cli.cl_sem);
656 if (obd->u.cli.cl_import) {
657 struct obd_import *imp;
658 imp = obd->u.cli.cl_import;
659 CDEBUG(D_CONFIG, "%s: client import never connected\n",
661 ptlrpc_invalidate_import(imp);
662 if (imp->imp_rq_pool) {
663 ptlrpc_free_rq_pool(imp->imp_rq_pool);
664 imp->imp_rq_pool = NULL;
666 client_destroy_import(imp);
667 obd->u.cli.cl_import = NULL;
669 up_write(&obd->u.cli.cl_sem);
675 obd_process_config(struct obd_device *obd, int datalen, void *data)
678 DECLARE_LU_VARS(ldt, d);
683 obd->obd_process_conf = 1;
684 ldt = obd->obd_type->typ_lu;
686 if (ldt != NULL && d != NULL) {
689 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
691 rc = d->ld_ops->ldo_process_config(&env, d, data);
695 OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
696 rc = OBP(obd, process_config)(obd, datalen, data);
698 OBD_COUNTER_INCREMENT(obd, process_config);
699 obd->obd_process_conf = 0;
704 /* Pack an in-memory MD struct for storage on disk.
705 * Returns +ve size of packed MD (0 for free), or -ve error.
707 * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL).
708 * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed.
709 * If @*disk_tgt == NULL, it will be allocated
711 static inline int obd_packmd(struct obd_export *exp,
712 struct lov_mds_md **disk_tgt,
713 struct lov_stripe_md *mem_src)
718 EXP_CHECK_DT_OP(exp, packmd);
719 EXP_COUNTER_INCREMENT(exp, packmd);
721 rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src);
725 static inline int obd_size_diskmd(struct obd_export *exp,
726 struct lov_stripe_md *mem_src)
728 return obd_packmd(exp, NULL, mem_src);
731 static inline int obd_free_diskmd(struct obd_export *exp,
732 struct lov_mds_md **disk_tgt)
737 * LU-2590, for caller's convenience, *disk_tgt could be host
738 * endianness, it needs swab to LE if necessary, while just
739 * lov_mds_md header needs it for figuring out how much memory
742 if ((cpu_to_le32(LOV_MAGIC) != LOV_MAGIC) &&
743 (((*disk_tgt)->lmm_magic == LOV_MAGIC_V1) ||
744 ((*disk_tgt)->lmm_magic == LOV_MAGIC_V3)))
745 lustre_swab_lov_mds_md(*disk_tgt);
746 return obd_packmd(exp, disk_tgt, NULL);
749 /* Unpack an MD struct from disk to in-memory format.
750 * Returns +ve size of unpacked MD (0 for free), or -ve error.
752 * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL).
753 * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed.
754 * If @*mem_tgt == NULL, it will be allocated
756 static inline int obd_unpackmd(struct obd_export *exp,
757 struct lov_stripe_md **mem_tgt,
758 struct lov_mds_md *disk_src,
764 EXP_CHECK_DT_OP(exp, unpackmd);
765 EXP_COUNTER_INCREMENT(exp, unpackmd);
767 rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len);
771 /* helper functions */
772 static inline int obd_alloc_memmd(struct obd_export *exp,
773 struct lov_stripe_md **mem_tgt)
776 LASSERT(*mem_tgt == NULL);
777 return obd_unpackmd(exp, mem_tgt, NULL, 0);
780 static inline int obd_free_memmd(struct obd_export *exp,
781 struct lov_stripe_md **mem_tgt)
787 rc = obd_unpackmd(exp, mem_tgt, NULL, 0);
792 static inline int obd_create_async(struct obd_export *exp,
793 struct obd_info *oinfo,
794 struct lov_stripe_md **ea,
795 struct obd_trans_info *oti)
800 EXP_CHECK_DT_OP(exp, create_async);
801 EXP_COUNTER_INCREMENT(exp, create_async);
803 rc = OBP(exp->exp_obd, create_async)(exp, oinfo, ea, oti);
807 static inline int obd_create(const struct lu_env *env, struct obd_export *exp,
808 struct obdo *obdo, struct lov_stripe_md **ea,
809 struct obd_trans_info *oti)
814 EXP_CHECK_DT_OP(exp, create);
815 EXP_COUNTER_INCREMENT(exp, create);
817 rc = OBP(exp->exp_obd, create)(env, exp, obdo, ea, oti);
821 static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp,
822 struct obdo *obdo, struct lov_stripe_md *ea,
823 struct obd_trans_info *oti,
824 struct obd_export *md_exp, void *capa)
829 EXP_CHECK_DT_OP(exp, destroy);
830 EXP_COUNTER_INCREMENT(exp, destroy);
832 rc = OBP(exp->exp_obd, destroy)(env, exp, obdo, ea, oti, md_exp, capa);
836 static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp,
837 struct obd_info *oinfo)
842 EXP_CHECK_DT_OP(exp, getattr);
843 EXP_COUNTER_INCREMENT(exp, getattr);
845 rc = OBP(exp->exp_obd, getattr)(env, exp, oinfo);
849 static inline int obd_getattr_async(struct obd_export *exp,
850 struct obd_info *oinfo,
851 struct ptlrpc_request_set *set)
856 EXP_CHECK_DT_OP(exp, getattr_async);
857 EXP_COUNTER_INCREMENT(exp, getattr_async);
859 rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set);
863 static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp,
864 struct obd_info *oinfo,
865 struct obd_trans_info *oti)
870 EXP_CHECK_DT_OP(exp, setattr);
871 EXP_COUNTER_INCREMENT(exp, setattr);
873 rc = OBP(exp->exp_obd, setattr)(env, exp, oinfo, oti);
877 /* This performs all the requests set init/wait/destroy actions. */
878 static inline int obd_setattr_rqset(struct obd_export *exp,
879 struct obd_info *oinfo,
880 struct obd_trans_info *oti)
882 struct ptlrpc_request_set *set = NULL;
886 EXP_CHECK_DT_OP(exp, setattr_async);
887 EXP_COUNTER_INCREMENT(exp, setattr_async);
889 set = ptlrpc_prep_set();
893 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
895 rc = ptlrpc_set_wait(set);
896 ptlrpc_set_destroy(set);
900 /* This adds all the requests into @set if @set != NULL, otherwise
901 all requests are sent asynchronously without waiting for response. */
902 static inline int obd_setattr_async(struct obd_export *exp,
903 struct obd_info *oinfo,
904 struct obd_trans_info *oti,
905 struct ptlrpc_request_set *set)
910 EXP_CHECK_DT_OP(exp, setattr_async);
911 EXP_COUNTER_INCREMENT(exp, setattr_async);
913 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
917 static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
920 struct obd_device *obd = imp->imp_obd;
924 OBD_CHECK_DEV_ACTIVE(obd);
925 OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
926 OBD_COUNTER_INCREMENT(obd, add_conn);
928 rc = OBP(obd, add_conn)(imp, uuid, priority);
932 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
934 struct obd_device *obd = imp->imp_obd;
938 OBD_CHECK_DEV_ACTIVE(obd);
939 OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
940 OBD_COUNTER_INCREMENT(obd, del_conn);
942 rc = OBP(obd, del_conn)(imp, uuid);
946 static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp)
948 struct obd_uuid *uuid;
951 OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL);
952 EXP_COUNTER_INCREMENT(exp, get_uuid);
954 uuid = OBP(exp->exp_obd, get_uuid)(exp);
958 /** Create a new /a exp on device /a obd for the uuid /a cluuid
959 * @param exp New export handle
960 * @param d Connect data, supported flags are set, flags also understood
961 * by obd are returned.
963 static inline int obd_connect(const struct lu_env *env,
964 struct obd_export **exp,struct obd_device *obd,
965 struct obd_uuid *cluuid,
966 struct obd_connect_data *data,
970 __u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
974 OBD_CHECK_DEV_ACTIVE(obd);
975 OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
976 OBD_COUNTER_INCREMENT(obd, connect);
978 rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata);
979 /* check that only subset is granted */
980 LASSERT(ergo(data != NULL, (data->ocd_connect_flags & ocf) ==
981 data->ocd_connect_flags));
985 static inline int obd_reconnect(const struct lu_env *env,
986 struct obd_export *exp,
987 struct obd_device *obd,
988 struct obd_uuid *cluuid,
989 struct obd_connect_data *d,
993 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
998 OBD_CHECK_DEV_ACTIVE(obd);
999 OBD_CHECK_DT_OP(obd, reconnect, 0);
1000 OBD_COUNTER_INCREMENT(obd, reconnect);
1002 rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
1003 /* check that only subset is granted */
1004 LASSERT(ergo(d != NULL,
1005 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
1009 static inline int obd_disconnect(struct obd_export *exp)
1014 EXP_CHECK_DT_OP(exp, disconnect);
1015 EXP_COUNTER_INCREMENT(exp, disconnect);
1017 rc = OBP(exp->exp_obd, disconnect)(exp);
1021 static inline int obd_fid_init(struct obd_device *obd, struct obd_export *exp,
1022 enum lu_cli_type type)
1027 OBD_CHECK_DT_OP(obd, fid_init, 0);
1028 OBD_COUNTER_INCREMENT(obd, fid_init);
1030 rc = OBP(obd, fid_init)(obd, exp, type);
1034 static inline int obd_fid_fini(struct obd_device *obd)
1039 OBD_CHECK_DT_OP(obd, fid_fini, 0);
1040 OBD_COUNTER_INCREMENT(obd, fid_fini);
1042 rc = OBP(obd, fid_fini)(obd);
1046 static inline int obd_fid_alloc(const struct lu_env *env,
1047 struct obd_export *exp,
1049 struct md_op_data *op_data)
1054 EXP_CHECK_DT_OP(exp, fid_alloc);
1055 EXP_COUNTER_INCREMENT(exp, fid_alloc);
1057 rc = OBP(exp->exp_obd, fid_alloc)(env, exp, fid, op_data);
1061 static inline int obd_ping(const struct lu_env *env, struct obd_export *exp)
1066 OBD_CHECK_DT_OP(exp->exp_obd, ping, 0);
1067 EXP_COUNTER_INCREMENT(exp, ping);
1069 rc = OBP(exp->exp_obd, ping)(env, exp);
1073 static inline int obd_pool_new(struct obd_device *obd, char *poolname)
1078 OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP);
1079 OBD_COUNTER_INCREMENT(obd, pool_new);
1081 rc = OBP(obd, pool_new)(obd, poolname);
1085 static inline int obd_pool_del(struct obd_device *obd, char *poolname)
1090 OBD_CHECK_DT_OP(obd, pool_del, -EOPNOTSUPP);
1091 OBD_COUNTER_INCREMENT(obd, pool_del);
1093 rc = OBP(obd, pool_del)(obd, poolname);
1097 static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname)
1102 OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP);
1103 OBD_COUNTER_INCREMENT(obd, pool_add);
1105 rc = OBP(obd, pool_add)(obd, poolname, ostname);
1109 static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname)
1114 OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP);
1115 OBD_COUNTER_INCREMENT(obd, pool_rem);
1117 rc = OBP(obd, pool_rem)(obd, poolname, ostname);
1121 static inline void obd_getref(struct obd_device *obd)
1124 if (OBT(obd) && OBP(obd, getref)) {
1125 OBD_COUNTER_INCREMENT(obd, getref);
1126 OBP(obd, getref)(obd);
1131 static inline void obd_putref(struct obd_device *obd)
1134 if (OBT(obd) && OBP(obd, putref)) {
1135 OBD_COUNTER_INCREMENT(obd, putref);
1136 OBP(obd, putref)(obd);
1141 static inline int obd_init_export(struct obd_export *exp)
1146 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1147 OBP((exp)->exp_obd, init_export))
1148 rc = OBP(exp->exp_obd, init_export)(exp);
1152 static inline int obd_destroy_export(struct obd_export *exp)
1155 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1156 OBP((exp)->exp_obd, destroy_export))
1157 OBP(exp->exp_obd, destroy_export)(exp);
1161 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1162 * If the cache is older than @max_age we will get a new value from the
1163 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1164 static inline int obd_statfs_async(struct obd_export *exp,
1165 struct obd_info *oinfo,
1167 struct ptlrpc_request_set *rqset)
1170 struct obd_device *obd;
1173 if (exp == NULL || exp->exp_obd == NULL)
1177 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1178 OBD_COUNTER_INCREMENT(obd, statfs);
1180 CDEBUG(D_SUPER, "%s: osfs %p age "LPU64", max_age "LPU64"\n",
1181 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
1182 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1183 rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset);
1185 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1186 " objects "LPU64"/"LPU64"\n",
1187 obd->obd_name, &obd->obd_osfs,
1188 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1189 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1190 spin_lock(&obd->obd_osfs_lock);
1191 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
1192 spin_unlock(&obd->obd_osfs_lock);
1193 oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
1194 if (oinfo->oi_cb_up)
1195 oinfo->oi_cb_up(oinfo, 0);
1200 static inline int obd_statfs_rqset(struct obd_export *exp,
1201 struct obd_statfs *osfs, __u64 max_age,
1204 struct ptlrpc_request_set *set = NULL;
1205 struct obd_info oinfo = { { { 0 } } };
1209 set = ptlrpc_prep_set();
1213 oinfo.oi_osfs = osfs;
1214 oinfo.oi_flags = flags;
1215 rc = obd_statfs_async(exp, &oinfo, max_age, set);
1217 rc = ptlrpc_set_wait(set);
1218 ptlrpc_set_destroy(set);
1222 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1223 * If the cache is older than @max_age we will get a new value from the
1224 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1225 static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
1226 struct obd_statfs *osfs, __u64 max_age,
1230 struct obd_device *obd = exp->exp_obd;
1236 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1237 OBD_COUNTER_INCREMENT(obd, statfs);
1239 CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n",
1240 obd->obd_osfs_age, max_age);
1241 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1242 rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
1244 spin_lock(&obd->obd_osfs_lock);
1245 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1246 obd->obd_osfs_age = cfs_time_current_64();
1247 spin_unlock(&obd->obd_osfs_lock);
1250 CDEBUG(D_SUPER, "%s: use %p cache blocks "LPU64"/"LPU64
1251 " objects "LPU64"/"LPU64"\n",
1252 obd->obd_name, &obd->obd_osfs,
1253 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1254 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1255 spin_lock(&obd->obd_osfs_lock);
1256 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1257 spin_unlock(&obd->obd_osfs_lock);
1262 static inline int obd_preprw(const struct lu_env *env, int cmd,
1263 struct obd_export *exp, struct obdo *oa,
1264 int objcount, struct obd_ioobj *obj,
1265 struct niobuf_remote *remote, int *pages,
1266 struct niobuf_local *local,
1267 struct obd_trans_info *oti,
1268 struct lustre_capa *capa)
1273 EXP_CHECK_DT_OP(exp, preprw);
1274 EXP_COUNTER_INCREMENT(exp, preprw);
1276 rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote,
1277 pages, local, oti, capa);
1281 static inline int obd_commitrw(const struct lu_env *env, int cmd,
1282 struct obd_export *exp, struct obdo *oa,
1283 int objcount, struct obd_ioobj *obj,
1284 struct niobuf_remote *rnb, int pages,
1285 struct niobuf_local *local,
1286 struct obd_trans_info *oti, int rc)
1290 EXP_CHECK_DT_OP(exp, commitrw);
1291 EXP_COUNTER_INCREMENT(exp, commitrw);
1293 rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj,
1294 rnb, pages, local, oti, rc);
1298 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1299 int len, void *karg, void *uarg)
1304 EXP_CHECK_DT_OP(exp, iocontrol);
1305 EXP_COUNTER_INCREMENT(exp, iocontrol);
1307 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1311 static inline int obd_change_cbdata(struct obd_export *exp,
1312 struct lov_stripe_md *lsm,
1313 ldlm_iterator_t it, void *data)
1318 EXP_CHECK_DT_OP(exp, change_cbdata);
1319 EXP_COUNTER_INCREMENT(exp, change_cbdata);
1321 rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data);
1325 static inline int obd_find_cbdata(struct obd_export *exp,
1326 struct lov_stripe_md *lsm,
1327 ldlm_iterator_t it, void *data)
1332 EXP_CHECK_DT_OP(exp, find_cbdata);
1333 EXP_COUNTER_INCREMENT(exp, find_cbdata);
1335 rc = OBP(exp->exp_obd, find_cbdata)(exp, lsm, it, data);
1339 static inline int obd_pin(struct obd_export *exp, const struct lu_fid *fid,
1340 struct obd_capa *oc, struct obd_client_handle *handle,
1346 EXP_CHECK_DT_OP(exp, pin);
1347 EXP_COUNTER_INCREMENT(exp, pin);
1349 rc = OBP(exp->exp_obd, pin)(exp, fid, oc, handle, flag);
1353 static inline int obd_unpin(struct obd_export *exp,
1354 struct obd_client_handle *handle, int flag)
1359 EXP_CHECK_DT_OP(exp, unpin);
1360 EXP_COUNTER_INCREMENT(exp, unpin);
1362 rc = OBP(exp->exp_obd, unpin)(exp, handle, flag);
1367 static inline void obd_import_event(struct obd_device *obd,
1368 struct obd_import *imp,
1369 enum obd_import_event event)
1373 CERROR("NULL device\n");
1377 if (obd->obd_set_up && OBP(obd, import_event)) {
1378 OBD_COUNTER_INCREMENT(obd, import_event);
1379 OBP(obd, import_event)(obd, imp, event);
1384 static inline int obd_llog_connect(struct obd_export *exp,
1385 struct llogd_conn_body *body)
1390 OBD_CHECK_DT_OP(exp->exp_obd, llog_connect, 0);
1391 EXP_COUNTER_INCREMENT(exp, llog_connect);
1393 rc = OBP(exp->exp_obd, llog_connect)(exp, body);
1398 static inline int obd_notify(struct obd_device *obd,
1399 struct obd_device *watched,
1400 enum obd_notify_event ev,
1407 /* the check for async_recov is a complete hack - I'm hereby
1408 overloading the meaning to also mean "this was called from
1409 mds_postsetup". I know that my mds is able to handle notifies
1410 by this point, and it needs to get them to execute mds_postrecov. */
1411 if (!obd->obd_set_up && !obd->obd_async_recov) {
1412 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1416 if (!OBP(obd, notify)) {
1417 CDEBUG(D_HA, "obd %s has no notify handler\n", obd->obd_name);
1421 OBD_COUNTER_INCREMENT(obd, notify);
1422 rc = OBP(obd, notify)(obd, watched, ev, data);
1426 static inline int obd_notify_observer(struct obd_device *observer,
1427 struct obd_device *observed,
1428 enum obd_notify_event ev,
1434 struct obd_notify_upcall *onu;
1436 if (observer->obd_observer)
1437 rc1 = obd_notify(observer->obd_observer, observed, ev, data);
1441 * Also, call non-obd listener, if any
1443 onu = &observer->obd_upcall;
1444 if (onu->onu_upcall != NULL)
1445 rc2 = onu->onu_upcall(observer, observed, ev,
1446 onu->onu_owner, NULL);
1450 return rc1 ? rc1 : rc2;
1453 static inline int obd_quotacheck(struct obd_export *exp,
1454 struct obd_quotactl *oqctl)
1459 EXP_CHECK_DT_OP(exp, quotacheck);
1460 EXP_COUNTER_INCREMENT(exp, quotacheck);
1462 rc = OBP(exp->exp_obd, quotacheck)(exp->exp_obd, exp, oqctl);
1466 static inline int obd_quotactl(struct obd_export *exp,
1467 struct obd_quotactl *oqctl)
1472 EXP_CHECK_DT_OP(exp, quotactl);
1473 EXP_COUNTER_INCREMENT(exp, quotactl);
1475 rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl);
1479 static inline int obd_health_check(const struct lu_env *env,
1480 struct obd_device *obd)
1482 /* returns: 0 on healthy
1483 * >0 on unhealthy + reason code/flag
1484 * however the only suppored reason == 1 right now
1485 * We'll need to define some better reasons
1486 * or flags in the future.
1492 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1493 if (obd == NULL || !OBT(obd)) {
1494 CERROR("cleaned up obd\n");
1495 RETURN(-EOPNOTSUPP);
1497 if (!obd->obd_set_up || obd->obd_stopping)
1499 if (!OBP(obd, health_check))
1502 rc = OBP(obd, health_check)(env, obd);
1506 static inline int obd_register_observer(struct obd_device *obd,
1507 struct obd_device *observer)
1511 down_write(&obd->obd_observer_link_sem);
1512 if (obd->obd_observer && observer) {
1513 up_write(&obd->obd_observer_link_sem);
1516 obd->obd_observer = observer;
1517 up_write(&obd->obd_observer_link_sem);
1521 static inline int obd_pin_observer(struct obd_device *obd,
1522 struct obd_device **observer)
1525 down_read(&obd->obd_observer_link_sem);
1526 if (!obd->obd_observer) {
1528 up_read(&obd->obd_observer_link_sem);
1531 *observer = obd->obd_observer;
1535 static inline int obd_unpin_observer(struct obd_device *obd)
1538 up_read(&obd->obd_observer_link_sem);
1543 static inline int obd_register_page_removal_cb(struct obd_export *exp,
1544 obd_page_removal_cb_t cb,
1545 obd_pin_extent_cb pin_cb)
1550 OBD_CHECK_DT_OP(exp->exp_obd, register_page_removal_cb, 0);
1551 OBD_COUNTER_INCREMENT(exp->exp_obd, register_page_removal_cb);
1553 rc = OBP(exp->exp_obd, register_page_removal_cb)(exp, cb, pin_cb);
1557 static inline int obd_unregister_page_removal_cb(struct obd_export *exp,
1558 obd_page_removal_cb_t cb)
1563 OBD_CHECK_DT_OP(exp->exp_obd, unregister_page_removal_cb, 0);
1564 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_page_removal_cb);
1566 rc = OBP(exp->exp_obd, unregister_page_removal_cb)(exp, cb);
1570 static inline int obd_register_lock_cancel_cb(struct obd_export *exp,
1571 obd_lock_cancel_cb cb)
1576 OBD_CHECK_DT_OP(exp->exp_obd, register_lock_cancel_cb, 0);
1577 OBD_COUNTER_INCREMENT(exp->exp_obd, register_lock_cancel_cb);
1579 rc = OBP(exp->exp_obd, register_lock_cancel_cb)(exp, cb);
1583 static inline int obd_unregister_lock_cancel_cb(struct obd_export *exp,
1584 obd_lock_cancel_cb cb)
1589 OBD_CHECK_DT_OP(exp->exp_obd, unregister_lock_cancel_cb, 0);
1590 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_lock_cancel_cb);
1592 rc = OBP(exp->exp_obd, unregister_lock_cancel_cb)(exp, cb);
1597 /* metadata helpers */
1598 static inline int md_getstatus(struct obd_export *exp,
1599 struct lu_fid *fid, struct obd_capa **pc)
1604 EXP_CHECK_MD_OP(exp, getstatus);
1605 EXP_MD_COUNTER_INCREMENT(exp, getstatus);
1606 rc = MDP(exp->exp_obd, getstatus)(exp, fid, pc);
1610 static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data,
1611 struct ptlrpc_request **request)
1615 EXP_CHECK_MD_OP(exp, getattr);
1616 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1617 rc = MDP(exp->exp_obd, getattr)(exp, op_data, request);
1621 static inline int md_null_inode(struct obd_export *exp,
1622 const struct lu_fid *fid)
1626 EXP_CHECK_MD_OP(exp, null_inode);
1627 EXP_MD_COUNTER_INCREMENT(exp, null_inode);
1628 rc = MDP(exp->exp_obd, null_inode)(exp, fid);
1632 static inline int md_find_cbdata(struct obd_export *exp,
1633 const struct lu_fid *fid,
1634 ldlm_iterator_t it, void *data)
1638 EXP_CHECK_MD_OP(exp, find_cbdata);
1639 EXP_MD_COUNTER_INCREMENT(exp, find_cbdata);
1640 rc = MDP(exp->exp_obd, find_cbdata)(exp, fid, it, data);
1644 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1645 struct md_open_data *mod,
1646 struct ptlrpc_request **request)
1650 EXP_CHECK_MD_OP(exp, close);
1651 EXP_MD_COUNTER_INCREMENT(exp, close);
1652 rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
1656 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1657 const void *data, int datalen, int mode, __u32 uid,
1658 __u32 gid, cfs_cap_t cap_effective, __u64 rdev,
1659 struct ptlrpc_request **request)
1663 EXP_CHECK_MD_OP(exp, create);
1664 EXP_MD_COUNTER_INCREMENT(exp, create);
1665 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1666 uid, gid, cap_effective, rdev, request);
1670 static inline int md_done_writing(struct obd_export *exp,
1671 struct md_op_data *op_data,
1672 struct md_open_data *mod)
1676 EXP_CHECK_MD_OP(exp, done_writing);
1677 EXP_MD_COUNTER_INCREMENT(exp, done_writing);
1678 rc = MDP(exp->exp_obd, done_writing)(exp, op_data, mod);
1682 static inline int md_enqueue(struct obd_export *exp,
1683 struct ldlm_enqueue_info *einfo,
1684 const union ldlm_policy_data *policy,
1685 struct lookup_intent *it,
1686 struct md_op_data *op_data,
1687 struct lustre_handle *lockh,
1688 __u64 extra_lock_flags)
1692 EXP_CHECK_MD_OP(exp, enqueue);
1693 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1694 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, policy, it, op_data, lockh,
1699 static inline int md_getattr_name(struct obd_export *exp,
1700 struct md_op_data *op_data,
1701 struct ptlrpc_request **request)
1705 EXP_CHECK_MD_OP(exp, getattr_name);
1706 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1707 rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request);
1711 static inline int md_intent_lock(struct obd_export *exp,
1712 struct md_op_data *op_data,
1713 struct lookup_intent *it,
1714 struct ptlrpc_request **reqp,
1715 ldlm_blocking_callback cb_blocking,
1716 __u64 extra_lock_flags)
1720 EXP_CHECK_MD_OP(exp, intent_lock);
1721 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1722 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, it, reqp, cb_blocking,
1727 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1728 struct ptlrpc_request **request)
1732 EXP_CHECK_MD_OP(exp, link);
1733 EXP_MD_COUNTER_INCREMENT(exp, link);
1734 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1738 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1739 const char *old, int oldlen, const char *new,
1740 int newlen, struct ptlrpc_request **request)
1744 EXP_CHECK_MD_OP(exp, rename);
1745 EXP_MD_COUNTER_INCREMENT(exp, rename);
1746 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
1751 static inline int md_is_subdir(struct obd_export *exp,
1752 const struct lu_fid *pfid,
1753 const struct lu_fid *cfid,
1754 struct ptlrpc_request **request)
1758 EXP_CHECK_MD_OP(exp, is_subdir);
1759 EXP_MD_COUNTER_INCREMENT(exp, is_subdir);
1760 rc = MDP(exp->exp_obd, is_subdir)(exp, pfid, cfid, request);
1764 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
1765 void *ea, int ealen, void *ea2, int ea2len,
1766 struct ptlrpc_request **request,
1767 struct md_open_data **mod)
1771 EXP_CHECK_MD_OP(exp, setattr);
1772 EXP_MD_COUNTER_INCREMENT(exp, setattr);
1773 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen,
1774 ea2, ea2len, request, mod);
1778 static inline int md_fsync(struct obd_export *exp, const struct lu_fid *fid,
1779 struct obd_capa *oc, struct ptlrpc_request **request)
1783 EXP_CHECK_MD_OP(exp, fsync);
1784 EXP_MD_COUNTER_INCREMENT(exp, fsync);
1785 rc = MDP(exp->exp_obd, fsync)(exp, fid, oc, request);
1789 static inline int md_readpage(struct obd_export *exp, struct md_op_data *opdata,
1790 struct page **pages,
1791 struct ptlrpc_request **request)
1795 EXP_CHECK_MD_OP(exp, readpage);
1796 EXP_MD_COUNTER_INCREMENT(exp, readpage);
1797 rc = MDP(exp->exp_obd, readpage)(exp, opdata, pages, request);
1801 static inline int md_read_entry(struct obd_export *exp,
1802 struct md_op_data *op_data,
1803 struct md_callback *cb_op,
1804 struct lu_dirent **ld,
1805 struct page **ppage)
1809 EXP_CHECK_MD_OP(exp, read_entry);
1810 EXP_MD_COUNTER_INCREMENT(exp, read_entry);
1811 rc = MDP(exp->exp_obd, read_entry)(exp, op_data, cb_op, ld, ppage);
1815 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
1816 struct ptlrpc_request **request)
1820 EXP_CHECK_MD_OP(exp, unlink);
1821 EXP_MD_COUNTER_INCREMENT(exp, unlink);
1822 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
1826 static inline int md_get_lustre_md(struct obd_export *exp,
1827 struct ptlrpc_request *req,
1828 struct obd_export *dt_exp,
1829 struct obd_export *md_exp,
1830 struct lustre_md *md)
1833 EXP_CHECK_MD_OP(exp, get_lustre_md);
1834 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
1835 RETURN(MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md));
1838 static inline int md_free_lustre_md(struct obd_export *exp,
1839 struct lustre_md *md)
1842 EXP_CHECK_MD_OP(exp, free_lustre_md);
1843 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
1844 RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md));
1847 static inline int md_update_lsm_md(struct obd_export *exp,
1848 struct lmv_stripe_md *lsm,
1849 struct mdt_body *body,
1850 ldlm_blocking_callback cb)
1853 EXP_CHECK_MD_OP(exp, update_lsm_md);
1854 EXP_MD_COUNTER_INCREMENT(exp, update_lsm_md);
1855 RETURN(MDP(exp->exp_obd, update_lsm_md)(exp, lsm, body, cb));
1858 static inline int md_merge_attr(struct obd_export *exp,
1859 const struct lmv_stripe_md *lsm,
1860 struct cl_attr *attr)
1863 EXP_CHECK_MD_OP(exp, merge_attr);
1864 EXP_MD_COUNTER_INCREMENT(exp, merge_attr);
1865 RETURN(MDP(exp->exp_obd, merge_attr)(exp, lsm, attr));
1868 static inline int md_setxattr(struct obd_export *exp,
1869 const struct lu_fid *fid, struct obd_capa *oc,
1870 obd_valid valid, const char *name,
1871 const char *input, int input_size,
1872 int output_size, int flags, __u32 suppgid,
1873 struct ptlrpc_request **request)
1876 EXP_CHECK_MD_OP(exp, setxattr);
1877 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
1878 RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, oc, valid, name, input,
1879 input_size, output_size, flags,
1883 static inline int md_getxattr(struct obd_export *exp,
1884 const struct lu_fid *fid, struct obd_capa *oc,
1885 obd_valid valid, const char *name,
1886 const char *input, int input_size,
1887 int output_size, int flags,
1888 struct ptlrpc_request **request)
1891 EXP_CHECK_MD_OP(exp, getxattr);
1892 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
1893 RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, oc, valid, name, input,
1894 input_size, output_size, flags,
1898 static inline int md_set_open_replay_data(struct obd_export *exp,
1899 struct obd_client_handle *och,
1900 struct lookup_intent *it)
1903 EXP_CHECK_MD_OP(exp, set_open_replay_data);
1904 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
1905 RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, it));
1908 static inline int md_clear_open_replay_data(struct obd_export *exp,
1909 struct obd_client_handle *och)
1912 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
1913 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
1914 RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och));
1917 static inline int md_set_lock_data(struct obd_export *exp,
1918 __u64 *lockh, void *data, __u64 *bits)
1921 EXP_CHECK_MD_OP(exp, set_lock_data);
1922 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
1923 RETURN(MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits));
1926 static inline int md_cancel_unused(struct obd_export *exp,
1927 const struct lu_fid *fid,
1928 ldlm_policy_data_t *policy,
1930 ldlm_cancel_flags_t flags,
1936 EXP_CHECK_MD_OP(exp, cancel_unused);
1937 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
1939 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
1944 static inline ldlm_mode_t md_lock_match(struct obd_export *exp, __u64 flags,
1945 const struct lu_fid *fid,
1947 ldlm_policy_data_t *policy,
1949 struct lustre_handle *lockh)
1952 EXP_CHECK_MD_OP(exp, lock_match);
1953 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
1954 RETURN(MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
1955 policy, mode, lockh));
1958 static inline int md_init_ea_size(struct obd_export *exp, int easize,
1959 int def_asize, int cookiesize,
1963 EXP_CHECK_MD_OP(exp, init_ea_size);
1964 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
1965 RETURN(MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
1966 cookiesize, def_cookiesize));
1969 static inline int md_get_remote_perm(struct obd_export *exp,
1970 const struct lu_fid *fid,
1971 struct obd_capa *oc, __u32 suppgid,
1972 struct ptlrpc_request **request)
1975 EXP_CHECK_MD_OP(exp, get_remote_perm);
1976 EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm);
1977 RETURN(MDP(exp->exp_obd, get_remote_perm)(exp, fid, oc, suppgid,
1981 static inline int md_renew_capa(struct obd_export *exp, struct obd_capa *ocapa,
1986 EXP_CHECK_MD_OP(exp, renew_capa);
1987 EXP_MD_COUNTER_INCREMENT(exp, renew_capa);
1988 rc = MDP(exp->exp_obd, renew_capa)(exp, ocapa, cb);
1992 static inline int md_unpack_capa(struct obd_export *exp,
1993 struct ptlrpc_request *req,
1994 const struct req_msg_field *field,
1995 struct obd_capa **oc)
1999 EXP_CHECK_MD_OP(exp, unpack_capa);
2000 EXP_MD_COUNTER_INCREMENT(exp, unpack_capa);
2001 rc = MDP(exp->exp_obd, unpack_capa)(exp, req, field, oc);
2005 static inline int md_intent_getattr_async(struct obd_export *exp,
2006 struct md_enqueue_info *minfo,
2007 struct ldlm_enqueue_info *einfo)
2011 EXP_CHECK_MD_OP(exp, intent_getattr_async);
2012 EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
2013 rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo, einfo);
2017 static inline int md_revalidate_lock(struct obd_export *exp,
2018 struct lookup_intent *it,
2019 struct lu_fid *fid, __u64 *bits)
2023 EXP_CHECK_MD_OP(exp, revalidate_lock);
2024 EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
2025 rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits);
2029 static inline int md_get_fid_from_lsm(struct obd_export *exp,
2030 const struct lmv_stripe_md *lsm,
2031 const char *name, int namelen,
2036 EXP_CHECK_MD_OP(exp, get_fid_from_lsm);
2037 EXP_MD_COUNTER_INCREMENT(exp, get_fid_from_lsm);
2038 rc = MDP(exp->exp_obd, get_fid_from_lsm)(exp, lsm, name, namelen, fid);
2042 /* OBD Metadata Support */
2044 extern int obd_init_caches(void);
2045 extern void obd_cleanup_caches(void);
2047 /* support routines */
2048 extern struct kmem_cache *obdo_cachep;
2050 #define OBDO_ALLOC(ptr) \
2052 OBD_SLAB_ALLOC_PTR_GFP((ptr), obdo_cachep, GFP_NOFS); \
2055 #define OBDO_FREE(ptr) \
2057 OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
2061 static inline void obdo2fid(struct obdo *oa, struct lu_fid *fid)
2063 /* something here */
2066 static inline void fid2obdo(struct lu_fid *fid, struct obdo *oa)
2068 /* something here */
2071 typedef int (*register_lwp_cb)(void *data);
2073 struct lwp_register_item {
2074 struct obd_export **lri_exp;
2075 register_lwp_cb lri_cb_func;
2077 cfs_list_t lri_list;
2078 char lri_name[MTI_NAME_MAXLEN];
2081 /* I'm as embarrassed about this as you are.
2083 * <shaver> // XXX do not look into _superhack with remaining eye
2084 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
2085 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
2088 #ifdef HAVE_SERVER_SUPPORT
2089 int lustre_register_lwp_item(const char *lwpname, struct obd_export **exp,
2090 register_lwp_cb cb_func, void *cb_data);
2091 void lustre_deregister_lwp_item(struct obd_export **exp);
2092 struct obd_export *lustre_find_lwp_by_index(const char *dev, __u32 idx);
2093 int tgt_name2lwp_name(const char *tgt_name, char *lwp_name, int len, __u32 idx);
2094 #endif /* HAVE_SERVER_SUPPORT */
2097 extern void obd_sysctl_init (void);
2098 extern void obd_sysctl_clean (void);
2101 typedef __u8 class_uuid_t[16];
2102 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
2105 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
2106 int class_add_uuid(const char *uuid, __u64 nid);
2107 int class_del_uuid (const char *uuid);
2108 int class_check_uuid(struct obd_uuid *uuid, __u64 nid);
2109 void class_init_uuidlist(void);
2110 void class_exit_uuidlist(void);
2113 #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
2115 /* root squash info */
2116 struct rw_semaphore;
2117 struct root_squash_info {
2120 struct list_head rsi_nosquash_nids;
2121 struct rw_semaphore rsi_sem;
2125 int server_name2index(const char *svname, __u32 *idx, const char **endptr);
2127 # define server_name2index(name, idx, ptr) do {} while (0)
2130 #endif /* __LINUX_OBD_CLASS_H */