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 <obd_support.h>
41 #include <lustre_import.h>
42 #include <lustre_net.h>
44 #include <lustre_lib.h>
45 #include <lustre/lustre_idl.h>
46 #include <lprocfs_status.h>
48 #define OBD_STATFS_NODELAY 0x0001 /* requests should be send without delay
49 * and resends for avoid deadlocks */
50 #define OBD_STATFS_FROM_CACHE 0x0002 /* the statfs callback should not update
52 #define OBD_STATFS_PTLRPCD 0x0004 /* requests will be sent via ptlrpcd
53 * instead of a specific set. This
54 * means that we cannot rely on the set
55 * interpret routine to be called.
56 * lov_statfs_fini() must thus be called
57 * by the request interpret routine */
58 #define OBD_STATFS_FOR_MDT0 0x0008 /* The statfs is only for retrieving
59 * information from MDT0. */
61 /* OBD Device Declarations */
62 extern struct obd_device *obd_devs[MAX_OBD_DEVICES];
63 extern struct list_head obd_types;
64 extern spinlock_t obd_types_lock;
65 extern rwlock_t obd_dev_lock;
67 /* OBD Operations Declarations */
68 extern struct obd_device *class_conn2obd(struct lustre_handle *);
69 extern struct obd_device *class_exp2obd(struct obd_export *);
70 extern int class_handle_ioctl(unsigned int cmd, unsigned long arg);
71 extern int lustre_get_jobid(char *jobid);
73 struct lu_device_type;
76 struct obd_export *class_conn2export(struct lustre_handle *);
77 int class_register_type(struct obd_ops *, struct md_ops *, bool enable_proc,
78 struct lprocfs_seq_vars *module_vars,
79 const char *nm, struct lu_device_type *ldt);
80 int class_unregister_type(const char *nm);
82 struct obd_device *class_newdev(const char *type_name, const char *name);
83 void class_release_dev(struct obd_device *obd);
85 int class_name2dev(const char *name);
86 struct obd_device *class_name2obd(const char *name);
87 int class_uuid2dev(struct obd_uuid *uuid);
88 struct obd_device *class_uuid2obd(struct obd_uuid *uuid);
89 void class_obd_list(void);
90 struct obd_device * class_find_client_obd(struct obd_uuid *tgt_uuid,
91 const char * typ_name,
92 struct obd_uuid *grp_uuid);
93 struct obd_device * class_devices_in_group(struct obd_uuid *grp_uuid,
95 struct obd_device * class_num2obd(int num);
96 int get_devices_count(void);
98 int class_notify_sptlrpc_conf(const char *fsname, int namelen);
100 char *obd_export_nid2str(struct obd_export *exp);
102 int obd_export_evict_by_nid(struct obd_device *obd, const char *nid);
103 int obd_export_evict_by_uuid(struct obd_device *obd, const char *uuid);
104 int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep);
106 int obd_zombie_impexp_init(void);
107 void obd_zombie_impexp_stop(void);
108 void obd_zombie_impexp_cull(void);
109 void obd_zombie_barrier(void);
110 void obd_exports_barrier(struct obd_device *obd);
111 int kuc_len(int payload_len);
112 struct kuc_hdr * kuc_ptr(void *p);
113 int kuc_ispayload(void *p);
114 void *kuc_alloc(int payload_len, int transport, int type);
115 void kuc_free(void *p, int payload_len);
116 int obd_get_request_slot(struct client_obd *cli);
117 void obd_put_request_slot(struct client_obd *cli);
118 __u32 obd_get_max_rpcs_in_flight(struct client_obd *cli);
119 int obd_set_max_rpcs_in_flight(struct client_obd *cli, __u32 max);
123 typedef int (*llog_cb_t)(const struct lu_env *, struct llog_handle *,
124 struct llog_rec_hdr *, void *);
126 struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg,
127 const char *new_name);
128 int class_process_config(struct lustre_cfg *lcfg);
129 int class_process_proc_param(char *prefix, struct lprocfs_seq_vars *lvars,
130 struct lustre_cfg *lcfg, void *data);
131 int class_attach(struct lustre_cfg *lcfg);
132 int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
133 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg);
134 int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg);
135 struct obd_device *class_incref(struct obd_device *obd,
136 const char *scope, const void *source);
137 void class_decref(struct obd_device *obd,
138 const char *scope, const void *source);
139 void dump_exports(struct obd_device *obd, int locks);
140 int class_config_llog_handler(const struct lu_env *env,
141 struct llog_handle *handle,
142 struct llog_rec_hdr *rec, void *data);
143 int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg);
144 int class_add_uuid(const char *uuid, __u64 nid);
146 #define CFG_F_START 0x01 /* Set when we start updating from a log */
147 #define CFG_F_MARKER 0x02 /* We are within a maker */
148 #define CFG_F_SKIP 0x04 /* We should ignore this cfg command */
149 #define CFG_F_COMPAT146 0x08 /* Allow old-style logs */
150 #define CFG_F_EXCLUDE 0x10 /* OST exclusion list */
152 /* Passed as data param to class_config_parse_llog */
153 struct config_llog_instance {
156 struct super_block *cfg_sb;
157 struct obd_uuid cfg_uuid;
158 llog_cb_t cfg_callback;
159 int cfg_last_idx; /* for partial llog processing */
163 int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
164 char *name, struct config_llog_instance *cfg);
165 int class_config_dump_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
166 char *name, struct config_llog_instance *cfg);
170 CONFIG_T_SPTLRPC = 1,
171 CONFIG_T_RECOVER = 2,
176 #define PARAMS_FILENAME "params"
177 #define LCTL_UPCALL "lctl"
179 /* list of active configuration logs */
180 struct config_llog_data {
181 struct ldlm_res_id cld_resid;
182 struct config_llog_instance cld_cfg;
183 struct list_head cld_list_chain;
184 atomic_t cld_refcount;
185 struct config_llog_data *cld_sptlrpc;/* depended sptlrpc log */
186 struct config_llog_data *cld_params; /* common parameters log */
187 struct config_llog_data *cld_recover;/* imperative recover log */
188 struct obd_export *cld_mgcexp;
189 struct mutex cld_lock;
191 unsigned int cld_stopping:1, /* we were told to stop
193 cld_lostlock:1; /* lock not requeued */
197 struct lustre_profile {
198 struct list_head lp_list;
204 struct lustre_profile *class_get_profile(const char * prof);
205 void class_del_profile(const char *prof);
206 void class_del_profiles(void);
208 #if LUSTRE_TRACKS_LOCK_EXP_REFS
210 void __class_export_add_lock_ref(struct obd_export *, struct ldlm_lock *);
211 void __class_export_del_lock_ref(struct obd_export *, struct ldlm_lock *);
212 extern void (*class_export_dump_hook)(struct obd_export *);
216 #define __class_export_add_lock_ref(exp, lock) do {} while(0)
217 #define __class_export_del_lock_ref(exp, lock) do {} while(0)
221 #define class_export_rpc_inc(exp) \
223 atomic_inc(&(exp)->exp_rpc_count); \
224 CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \
225 (exp), atomic_read(&(exp)->exp_rpc_count)); \
228 #define class_export_rpc_dec(exp) \
230 LASSERT_ATOMIC_POS(&exp->exp_rpc_count); \
231 atomic_dec(&(exp)->exp_rpc_count); \
232 CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \
233 (exp), atomic_read(&(exp)->exp_rpc_count)); \
236 #define class_export_lock_get(exp, lock) \
238 atomic_inc(&(exp)->exp_locks_count); \
239 __class_export_add_lock_ref(exp, lock); \
240 CDEBUG(D_INFO, "lock GETting export %p : new locks_count %d\n", \
241 (exp), atomic_read(&(exp)->exp_locks_count)); \
242 class_export_get(exp); \
245 #define class_export_lock_put(exp, lock) \
247 LASSERT_ATOMIC_POS(&exp->exp_locks_count); \
248 atomic_dec(&(exp)->exp_locks_count); \
249 __class_export_del_lock_ref(exp, lock); \
250 CDEBUG(D_INFO, "lock PUTting export %p : new locks_count %d\n", \
251 (exp), atomic_read(&(exp)->exp_locks_count)); \
252 class_export_put(exp); \
255 #define class_export_cb_get(exp) \
257 atomic_inc(&(exp)->exp_cb_count); \
258 CDEBUG(D_INFO, "callback GETting export %p : new cb_count %d\n",\
259 (exp), atomic_read(&(exp)->exp_cb_count)); \
260 class_export_get(exp); \
263 #define class_export_cb_put(exp) \
265 LASSERT_ATOMIC_POS(&exp->exp_cb_count); \
266 atomic_dec(&(exp)->exp_cb_count); \
267 CDEBUG(D_INFO, "callback PUTting export %p : new cb_count %d\n",\
268 (exp), atomic_read(&(exp)->exp_cb_count)); \
269 class_export_put(exp); \
273 struct obd_export *class_export_get(struct obd_export *exp);
274 void class_export_put(struct obd_export *exp);
275 struct obd_export *class_new_export(struct obd_device *obddev,
276 struct obd_uuid *cluuid);
277 void class_unlink_export(struct obd_export *exp);
279 struct obd_import *class_import_get(struct obd_import *);
280 void class_import_put(struct obd_import *);
281 struct obd_import *class_new_import(struct obd_device *obd);
282 void class_destroy_import(struct obd_import *exp);
284 struct obd_type *class_search_type(const char *name);
285 struct obd_type *class_get_type(const char *name);
286 void class_put_type(struct obd_type *type);
287 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
288 struct obd_uuid *cluuid);
289 int class_disconnect(struct obd_export *exp);
290 void class_fail_export(struct obd_export *exp);
291 int class_connected_export(struct obd_export *exp);
292 void class_disconnect_exports(struct obd_device *obddev);
293 int class_manual_cleanup(struct obd_device *obd);
294 void class_disconnect_stale_exports(struct obd_device *,
295 int (*test_export)(struct obd_export *));
296 static inline enum obd_option exp_flags_from_obd(struct obd_device *obd)
298 return ((obd->obd_fail ? OBD_OPT_FAILOVER : 0) |
299 (obd->obd_force ? OBD_OPT_FORCE : 0) |
300 (obd->obd_abort_recovery ? OBD_OPT_ABORT_RECOV : 0) |
304 #ifdef HAVE_SERVER_SUPPORT
305 static inline struct lu_target *class_exp2tgt(struct obd_export *exp)
307 LASSERT(exp->exp_obd);
308 return exp->exp_obd->u.obt.obt_lut;
311 static inline struct lr_server_data *class_server_data(struct obd_device *obd)
313 LASSERT(obd->u.obt.obt_lut);
314 return &obd->u.obt.obt_lut->lut_lsd;
322 void obdo_from_la(struct obdo *dst, const struct lu_attr *la, __u64 valid);
323 void la_from_obdo(struct lu_attr *la, const struct obdo *dst, obd_flag valid);
324 void obdo_refresh_inode(struct inode *dst, const struct obdo *src,
327 void obdo_cpy_md(struct obdo *dst, const struct obdo *src, obd_flag valid);
328 void obdo_to_ioobj(const struct obdo *oa, struct obd_ioobj *ioobj);
329 void md_from_obdo(struct md_op_data *op_data, const struct obdo *oa,
332 #define OBT(dev) (dev)->obd_type
333 #define OBP(dev, op) (dev)->obd_type->typ_dt_ops->o_ ## op
334 #define MDP(dev, op) (dev)->obd_type->typ_md_ops->m_ ## op
335 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
337 /* Ensure obd_setup: used for cleanup which must be called
338 while obd is stopping */
339 #define OBD_CHECK_DEV(obd) \
342 CERROR("NULL device\n"); \
347 /* ensure obd_setup and !obd_stopping */
348 #define OBD_CHECK_DEV_ACTIVE(obd) \
350 OBD_CHECK_DEV(obd); \
351 if (!(obd)->obd_set_up || (obd)->obd_stopping) { \
352 CERROR("Device %d not setup\n", \
360 #define OBD_COUNTER_OFFSET(op) \
361 ((offsetof(struct obd_ops, o_ ## op) - \
362 offsetof(struct obd_ops, o_iocontrol)) \
363 / sizeof(((struct obd_ops *)NULL)->o_iocontrol))
365 /* The '- 1' below is for o_owner. */
366 #define NUM_OBD_STATS \
367 (sizeof(struct obd_ops) / \
368 sizeof(((struct obd_ops *)NULL)->o_iocontrol) - 1)
370 #define OBD_COUNTER_INCREMENT(obd, op) \
371 lprocfs_counter_incr((obd)->obd_stats, \
372 (obd)->obd_cntr_base + OBD_COUNTER_OFFSET(op))
374 #define EXP_COUNTER_INCREMENT(exp, op) \
377 _off = (exp)->exp_obd->obd_cntr_base + OBD_COUNTER_OFFSET(op); \
378 lprocfs_counter_incr((exp)->exp_obd->obd_stats, _off); \
379 if ((exp)->exp_obd->obd_uses_nid_stats && \
380 (exp)->exp_nid_stats != NULL) \
381 lprocfs_counter_incr((exp)->exp_nid_stats->nid_stats, \
385 #define _MD_COUNTER_OFFSET(m_op) \
386 ((offsetof(struct md_ops, m_op) - \
387 offsetof(struct md_ops, MD_STATS_FIRST_OP)) / \
388 sizeof(((struct md_ops *)NULL)->MD_STATS_FIRST_OP))
390 #define MD_COUNTER_OFFSET(op) _MD_COUNTER_OFFSET(m_ ## op)
392 #define NUM_MD_STATS \
393 (_MD_COUNTER_OFFSET(MD_STATS_LAST_OP) - \
394 _MD_COUNTER_OFFSET(MD_STATS_FIRST_OP) + 1)
396 /* Note that we only increment md counters for ops whose offset is less
397 * than NUM_MD_STATS. This is explained in a comment in the definition
398 * of struct md_ops. */
399 #define EXP_MD_COUNTER_INCREMENT(exp, op) \
401 if (MD_COUNTER_OFFSET(op) < NUM_MD_STATS) \
402 lprocfs_counter_incr((exp)->exp_obd->obd_md_stats, \
403 (exp)->exp_obd->obd_md_cntr_base + \
404 MD_COUNTER_OFFSET(op)); \
408 #define OBD_COUNTER_OFFSET(op)
409 #define OBD_COUNTER_INCREMENT(obd, op)
410 #define EXP_COUNTER_INCREMENT(exp, op)
411 #define EXP_MD_COUNTER_INCREMENT(exp, op)
414 static inline int lprocfs_nid_ldlm_stats_init(struct nid_stat* tmp)
416 /* Always add in ldlm_stats */
417 tmp->nid_ldlm_stats = lprocfs_alloc_stats(LDLM_LAST_OPC - LDLM_FIRST_OPC
418 ,LPROCFS_STATS_FLAG_NOPERCPU);
419 if (tmp->nid_ldlm_stats == NULL)
422 lprocfs_init_ldlm_stats(tmp->nid_ldlm_stats);
424 return lprocfs_register_stats(tmp->nid_proc, "ldlm_stats",
425 tmp->nid_ldlm_stats);
428 #define EXP_CHECK_MD_OP(exp, op) \
430 if ((exp) == NULL) { \
431 CERROR("obd_" #op ": NULL export\n"); \
434 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
435 CERROR("obd_" #op ": cleaned up obd\n"); \
436 RETURN(-EOPNOTSUPP); \
438 if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
439 CERROR("obd_" #op ": dev %s/%d no operation\n", \
440 (exp)->exp_obd->obd_name, \
441 (exp)->exp_obd->obd_minor); \
442 RETURN(-EOPNOTSUPP); \
447 #define OBD_CHECK_DT_OP(obd, op, err) \
449 if (!OBT(obd) || !OBP((obd), op)) { \
451 CERROR("obd_" #op ": dev %d no operation\n", \
457 #define EXP_CHECK_DT_OP(exp, op) \
459 if ((exp) == NULL) { \
460 CERROR("obd_" #op ": NULL export\n"); \
463 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
464 CERROR("obd_" #op ": cleaned up obd\n"); \
465 RETURN(-EOPNOTSUPP); \
467 if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
468 CERROR("obd_" #op ": dev %d no operation\n", \
469 (exp)->exp_obd->obd_minor); \
470 RETURN(-EOPNOTSUPP); \
474 #define CTXT_CHECK_OP(ctxt, op, err) \
476 if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
478 CERROR("lop_" #op ": dev %d no operation\n", \
479 ctxt->loc_obd->obd_minor); \
484 static inline int class_devno_max(void)
486 return MAX_OBD_DEVICES;
489 static inline int obd_get_info(const struct lu_env *env,
490 struct obd_export *exp, __u32 keylen,
491 void *key, __u32 *vallen, void *val,
492 struct lov_stripe_md *lsm)
497 EXP_CHECK_DT_OP(exp, get_info);
498 EXP_COUNTER_INCREMENT(exp, get_info);
500 rc = OBP(exp->exp_obd, get_info)(env, exp, keylen, key, vallen, val,
505 static inline int obd_set_info_async(const struct lu_env *env,
506 struct obd_export *exp, obd_count keylen,
507 void *key, obd_count vallen, void *val,
508 struct ptlrpc_request_set *set)
513 EXP_CHECK_DT_OP(exp, set_info_async);
514 EXP_COUNTER_INCREMENT(exp, set_info_async);
516 rc = OBP(exp->exp_obd, set_info_async)(env, exp, keylen, key, vallen,
522 * obd-lu integration.
524 * Functionality is being moved into new lu_device-based layering, but some
525 * pieces of configuration process are still based on obd devices.
527 * Specifically, lu_device_type_operations::ldto_device_alloc() methods fully
528 * subsume ->o_setup() methods of obd devices they replace. The same for
529 * lu_device_operations::ldo_process_config() and ->o_process_config(). As a
530 * result, obd_setup() and obd_process_config() branch and call one XOR
533 * Yet neither lu_device_type_operations::ldto_device_fini() nor
534 * lu_device_type_operations::ldto_device_free() fully implement the
535 * functionality of ->o_precleanup() and ->o_cleanup() they override. Hence,
536 * obd_precleanup() and obd_cleanup() call both lu_device and obd operations.
539 #define DECLARE_LU_VARS(ldt, d) \
540 struct lu_device_type *ldt; \
543 static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
546 DECLARE_LU_VARS(ldt, d);
549 ldt = obd->obd_type->typ_lu;
551 struct lu_context session_ctx;
553 lu_context_init(&session_ctx, LCT_SESSION | LCT_SERVER_SESSION);
554 session_ctx.lc_thread = NULL;
555 lu_context_enter(&session_ctx);
557 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
559 env.le_ses = &session_ctx;
560 d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
569 lu_context_exit(&session_ctx);
570 lu_context_fini(&session_ctx);
573 OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
574 OBD_COUNTER_INCREMENT(obd, setup);
575 rc = OBP(obd, setup)(obd, cfg);
580 static inline int obd_precleanup(struct obd_device *obd,
581 enum obd_cleanup_stage cleanup_stage)
584 DECLARE_LU_VARS(ldt, d);
588 ldt = obd->obd_type->typ_lu;
590 if (ldt != NULL && d != NULL) {
591 if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
594 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
596 ldt->ldt_ops->ldto_device_fini(&env, d);
601 OBD_CHECK_DT_OP(obd, precleanup, 0);
602 OBD_COUNTER_INCREMENT(obd, precleanup);
604 rc = OBP(obd, precleanup)(obd, cleanup_stage);
608 static inline int obd_cleanup(struct obd_device *obd)
611 DECLARE_LU_VARS(ldt, d);
616 ldt = obd->obd_type->typ_lu;
618 if (ldt != NULL && d != NULL) {
621 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
623 ldt->ldt_ops->ldto_device_free(&env, d);
625 obd->obd_lu_dev = NULL;
628 OBD_CHECK_DT_OP(obd, cleanup, 0);
629 OBD_COUNTER_INCREMENT(obd, cleanup);
631 rc = OBP(obd, cleanup)(obd);
635 static inline void obd_cleanup_client_import(struct obd_device *obd)
639 /* If we set up but never connected, the
640 client import will not have been cleaned. */
641 down_write(&obd->u.cli.cl_sem);
642 if (obd->u.cli.cl_import) {
643 struct obd_import *imp;
644 imp = obd->u.cli.cl_import;
645 CDEBUG(D_CONFIG, "%s: client import never connected\n",
647 ptlrpc_invalidate_import(imp);
648 if (imp->imp_rq_pool) {
649 ptlrpc_free_rq_pool(imp->imp_rq_pool);
650 imp->imp_rq_pool = NULL;
652 client_destroy_import(imp);
653 obd->u.cli.cl_import = NULL;
655 up_write(&obd->u.cli.cl_sem);
661 obd_process_config(struct obd_device *obd, int datalen, void *data)
664 DECLARE_LU_VARS(ldt, d);
669 obd->obd_process_conf = 1;
670 ldt = obd->obd_type->typ_lu;
672 if (ldt != NULL && d != NULL) {
675 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
677 rc = d->ld_ops->ldo_process_config(&env, d, data);
681 OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
682 rc = OBP(obd, process_config)(obd, datalen, data);
684 OBD_COUNTER_INCREMENT(obd, process_config);
685 obd->obd_process_conf = 0;
690 /* Pack an in-memory MD struct for storage on disk.
691 * Returns +ve size of packed MD (0 for free), or -ve error.
693 * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL).
694 * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed.
695 * If @*disk_tgt == NULL, it will be allocated
697 static inline int obd_packmd(struct obd_export *exp,
698 struct lov_mds_md **disk_tgt,
699 struct lov_stripe_md *mem_src)
704 EXP_CHECK_DT_OP(exp, packmd);
705 EXP_COUNTER_INCREMENT(exp, packmd);
707 rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src);
711 static inline int obd_size_diskmd(struct obd_export *exp,
712 struct lov_stripe_md *mem_src)
714 return obd_packmd(exp, NULL, mem_src);
717 static inline int obd_free_diskmd(struct obd_export *exp,
718 struct lov_mds_md **disk_tgt)
723 * LU-2590, for caller's convenience, *disk_tgt could be host
724 * endianness, it needs swab to LE if necessary, while just
725 * lov_mds_md header needs it for figuring out how much memory
728 if ((cpu_to_le32(LOV_MAGIC) != LOV_MAGIC) &&
729 (((*disk_tgt)->lmm_magic == LOV_MAGIC_V1) ||
730 ((*disk_tgt)->lmm_magic == LOV_MAGIC_V3)))
731 lustre_swab_lov_mds_md(*disk_tgt);
732 return obd_packmd(exp, disk_tgt, NULL);
735 /* Unpack an MD struct from disk to in-memory format.
736 * Returns +ve size of unpacked MD (0 for free), or -ve error.
738 * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL).
739 * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed.
740 * If @*mem_tgt == NULL, it will be allocated
742 static inline int obd_unpackmd(struct obd_export *exp,
743 struct lov_stripe_md **mem_tgt,
744 struct lov_mds_md *disk_src,
750 EXP_CHECK_DT_OP(exp, unpackmd);
751 EXP_COUNTER_INCREMENT(exp, unpackmd);
753 rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len);
757 /* helper functions */
758 static inline int obd_alloc_memmd(struct obd_export *exp,
759 struct lov_stripe_md **mem_tgt)
762 LASSERT(*mem_tgt == NULL);
763 return obd_unpackmd(exp, mem_tgt, NULL, 0);
766 static inline int obd_free_memmd(struct obd_export *exp,
767 struct lov_stripe_md **mem_tgt)
773 rc = obd_unpackmd(exp, mem_tgt, NULL, 0);
778 static inline int obd_create(const struct lu_env *env, struct obd_export *exp,
779 struct obdo *obdo, struct lov_stripe_md **ea,
780 struct obd_trans_info *oti)
785 EXP_CHECK_DT_OP(exp, create);
786 EXP_COUNTER_INCREMENT(exp, create);
788 rc = OBP(exp->exp_obd, create)(env, exp, obdo, ea, oti);
792 static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp,
793 struct obdo *obdo, struct lov_stripe_md *ea,
794 struct obd_trans_info *oti,
795 struct obd_export *md_exp, void *capa)
800 EXP_CHECK_DT_OP(exp, destroy);
801 EXP_COUNTER_INCREMENT(exp, destroy);
803 rc = OBP(exp->exp_obd, destroy)(env, exp, obdo, ea, oti, md_exp, capa);
807 static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp,
808 struct obd_info *oinfo)
813 EXP_CHECK_DT_OP(exp, getattr);
814 EXP_COUNTER_INCREMENT(exp, getattr);
816 rc = OBP(exp->exp_obd, getattr)(env, exp, oinfo);
820 static inline int obd_getattr_async(struct obd_export *exp,
821 struct obd_info *oinfo,
822 struct ptlrpc_request_set *set)
827 EXP_CHECK_DT_OP(exp, getattr_async);
828 EXP_COUNTER_INCREMENT(exp, getattr_async);
830 rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set);
834 static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp,
835 struct obd_info *oinfo,
836 struct obd_trans_info *oti)
841 EXP_CHECK_DT_OP(exp, setattr);
842 EXP_COUNTER_INCREMENT(exp, setattr);
844 rc = OBP(exp->exp_obd, setattr)(env, exp, oinfo, oti);
848 /* This performs all the requests set init/wait/destroy actions. */
849 static inline int obd_setattr_rqset(struct obd_export *exp,
850 struct obd_info *oinfo,
851 struct obd_trans_info *oti)
853 struct ptlrpc_request_set *set = NULL;
857 EXP_CHECK_DT_OP(exp, setattr_async);
858 EXP_COUNTER_INCREMENT(exp, setattr_async);
860 set = ptlrpc_prep_set();
864 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
866 rc = ptlrpc_set_wait(set);
867 ptlrpc_set_destroy(set);
871 /* This adds all the requests into @set if @set != NULL, otherwise
872 all requests are sent asynchronously without waiting for response. */
873 static inline int obd_setattr_async(struct obd_export *exp,
874 struct obd_info *oinfo,
875 struct obd_trans_info *oti,
876 struct ptlrpc_request_set *set)
881 EXP_CHECK_DT_OP(exp, setattr_async);
882 EXP_COUNTER_INCREMENT(exp, setattr_async);
884 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
888 static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
891 struct obd_device *obd = imp->imp_obd;
895 OBD_CHECK_DEV_ACTIVE(obd);
896 OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
897 OBD_COUNTER_INCREMENT(obd, add_conn);
899 rc = OBP(obd, add_conn)(imp, uuid, priority);
903 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
905 struct obd_device *obd = imp->imp_obd;
909 OBD_CHECK_DEV_ACTIVE(obd);
910 OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
911 OBD_COUNTER_INCREMENT(obd, del_conn);
913 rc = OBP(obd, del_conn)(imp, uuid);
917 static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp)
919 struct obd_uuid *uuid;
922 OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL);
923 EXP_COUNTER_INCREMENT(exp, get_uuid);
925 uuid = OBP(exp->exp_obd, get_uuid)(exp);
929 /** Create a new /a exp on device /a obd for the uuid /a cluuid
930 * @param exp New export handle
931 * @param d Connect data, supported flags are set, flags also understood
932 * by obd are returned.
934 static inline int obd_connect(const struct lu_env *env,
935 struct obd_export **exp,struct obd_device *obd,
936 struct obd_uuid *cluuid,
937 struct obd_connect_data *data,
941 __u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
945 OBD_CHECK_DEV_ACTIVE(obd);
946 OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
947 OBD_COUNTER_INCREMENT(obd, connect);
949 rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata);
950 /* check that only subset is granted */
951 LASSERT(ergo(data != NULL, (data->ocd_connect_flags & ocf) ==
952 data->ocd_connect_flags));
956 static inline int obd_reconnect(const struct lu_env *env,
957 struct obd_export *exp,
958 struct obd_device *obd,
959 struct obd_uuid *cluuid,
960 struct obd_connect_data *d,
964 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
969 OBD_CHECK_DEV_ACTIVE(obd);
970 OBD_CHECK_DT_OP(obd, reconnect, 0);
971 OBD_COUNTER_INCREMENT(obd, reconnect);
973 rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
974 /* check that only subset is granted */
975 LASSERT(ergo(d != NULL,
976 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
980 static inline int obd_disconnect(struct obd_export *exp)
985 EXP_CHECK_DT_OP(exp, disconnect);
986 EXP_COUNTER_INCREMENT(exp, disconnect);
988 rc = OBP(exp->exp_obd, disconnect)(exp);
992 static inline int obd_fid_init(struct obd_device *obd, struct obd_export *exp,
993 enum lu_cli_type type)
998 OBD_CHECK_DT_OP(obd, fid_init, 0);
999 OBD_COUNTER_INCREMENT(obd, fid_init);
1001 rc = OBP(obd, fid_init)(obd, exp, type);
1005 static inline int obd_fid_fini(struct obd_device *obd)
1010 OBD_CHECK_DT_OP(obd, fid_fini, 0);
1011 OBD_COUNTER_INCREMENT(obd, fid_fini);
1013 rc = OBP(obd, fid_fini)(obd);
1017 static inline int obd_fid_alloc(const struct lu_env *env,
1018 struct obd_export *exp,
1020 struct md_op_data *op_data)
1025 EXP_CHECK_DT_OP(exp, fid_alloc);
1026 EXP_COUNTER_INCREMENT(exp, fid_alloc);
1028 rc = OBP(exp->exp_obd, fid_alloc)(env, exp, fid, op_data);
1032 static inline int obd_ping(const struct lu_env *env, struct obd_export *exp)
1037 OBD_CHECK_DT_OP(exp->exp_obd, ping, 0);
1038 EXP_COUNTER_INCREMENT(exp, ping);
1040 rc = OBP(exp->exp_obd, ping)(env, exp);
1044 static inline int obd_pool_new(struct obd_device *obd, char *poolname)
1049 OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP);
1050 OBD_COUNTER_INCREMENT(obd, pool_new);
1052 rc = OBP(obd, pool_new)(obd, poolname);
1056 static inline int obd_pool_del(struct obd_device *obd, char *poolname)
1061 OBD_CHECK_DT_OP(obd, pool_del, -EOPNOTSUPP);
1062 OBD_COUNTER_INCREMENT(obd, pool_del);
1064 rc = OBP(obd, pool_del)(obd, poolname);
1068 static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname)
1073 OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP);
1074 OBD_COUNTER_INCREMENT(obd, pool_add);
1076 rc = OBP(obd, pool_add)(obd, poolname, ostname);
1080 static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname)
1085 OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP);
1086 OBD_COUNTER_INCREMENT(obd, pool_rem);
1088 rc = OBP(obd, pool_rem)(obd, poolname, ostname);
1092 static inline void obd_getref(struct obd_device *obd)
1095 if (OBT(obd) && OBP(obd, getref)) {
1096 OBD_COUNTER_INCREMENT(obd, getref);
1097 OBP(obd, getref)(obd);
1102 static inline void obd_putref(struct obd_device *obd)
1105 if (OBT(obd) && OBP(obd, putref)) {
1106 OBD_COUNTER_INCREMENT(obd, putref);
1107 OBP(obd, putref)(obd);
1112 static inline int obd_init_export(struct obd_export *exp)
1117 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1118 OBP((exp)->exp_obd, init_export))
1119 rc = OBP(exp->exp_obd, init_export)(exp);
1123 static inline int obd_destroy_export(struct obd_export *exp)
1126 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1127 OBP((exp)->exp_obd, destroy_export))
1128 OBP(exp->exp_obd, destroy_export)(exp);
1132 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1133 * If the cache is older than @max_age we will get a new value from the
1134 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1135 static inline int obd_statfs_async(struct obd_export *exp,
1136 struct obd_info *oinfo,
1138 struct ptlrpc_request_set *rqset)
1141 struct obd_device *obd;
1144 if (exp == NULL || exp->exp_obd == NULL)
1148 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1149 OBD_COUNTER_INCREMENT(obd, statfs);
1151 CDEBUG(D_SUPER, "%s: osfs %p age "LPU64", max_age "LPU64"\n",
1152 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
1153 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1154 rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset);
1156 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1157 " objects "LPU64"/"LPU64"\n",
1158 obd->obd_name, &obd->obd_osfs,
1159 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1160 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1161 spin_lock(&obd->obd_osfs_lock);
1162 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
1163 spin_unlock(&obd->obd_osfs_lock);
1164 oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
1165 if (oinfo->oi_cb_up)
1166 oinfo->oi_cb_up(oinfo, 0);
1171 static inline int obd_statfs_rqset(struct obd_export *exp,
1172 struct obd_statfs *osfs, __u64 max_age,
1175 struct ptlrpc_request_set *set = NULL;
1176 struct obd_info oinfo = { { { 0 } } };
1180 set = ptlrpc_prep_set();
1184 oinfo.oi_osfs = osfs;
1185 oinfo.oi_flags = flags;
1186 rc = obd_statfs_async(exp, &oinfo, max_age, set);
1188 rc = ptlrpc_set_wait(set);
1189 ptlrpc_set_destroy(set);
1193 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1194 * If the cache is older than @max_age we will get a new value from the
1195 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1196 static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
1197 struct obd_statfs *osfs, __u64 max_age,
1201 struct obd_device *obd = exp->exp_obd;
1207 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1208 OBD_COUNTER_INCREMENT(obd, statfs);
1210 CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n",
1211 obd->obd_osfs_age, max_age);
1212 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1213 rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
1215 spin_lock(&obd->obd_osfs_lock);
1216 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1217 obd->obd_osfs_age = cfs_time_current_64();
1218 spin_unlock(&obd->obd_osfs_lock);
1221 CDEBUG(D_SUPER, "%s: use %p cache blocks "LPU64"/"LPU64
1222 " objects "LPU64"/"LPU64"\n",
1223 obd->obd_name, &obd->obd_osfs,
1224 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1225 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1226 spin_lock(&obd->obd_osfs_lock);
1227 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1228 spin_unlock(&obd->obd_osfs_lock);
1233 static inline int obd_preprw(const struct lu_env *env, int cmd,
1234 struct obd_export *exp, struct obdo *oa,
1235 int objcount, struct obd_ioobj *obj,
1236 struct niobuf_remote *remote, int *pages,
1237 struct niobuf_local *local,
1238 struct obd_trans_info *oti,
1239 struct lustre_capa *capa)
1244 EXP_CHECK_DT_OP(exp, preprw);
1245 EXP_COUNTER_INCREMENT(exp, preprw);
1247 rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote,
1248 pages, local, oti, capa);
1252 static inline int obd_commitrw(const struct lu_env *env, int cmd,
1253 struct obd_export *exp, struct obdo *oa,
1254 int objcount, struct obd_ioobj *obj,
1255 struct niobuf_remote *rnb, int pages,
1256 struct niobuf_local *local,
1257 struct obd_trans_info *oti, int rc)
1261 EXP_CHECK_DT_OP(exp, commitrw);
1262 EXP_COUNTER_INCREMENT(exp, commitrw);
1264 rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj,
1265 rnb, pages, local, oti, rc);
1269 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1270 int len, void *karg, void __user *uarg)
1275 EXP_CHECK_DT_OP(exp, iocontrol);
1276 EXP_COUNTER_INCREMENT(exp, iocontrol);
1278 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1282 static inline int obd_change_cbdata(struct obd_export *exp,
1283 struct lov_stripe_md *lsm,
1284 ldlm_iterator_t it, void *data)
1289 EXP_CHECK_DT_OP(exp, change_cbdata);
1290 EXP_COUNTER_INCREMENT(exp, change_cbdata);
1292 rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data);
1296 static inline int obd_find_cbdata(struct obd_export *exp,
1297 struct lov_stripe_md *lsm,
1298 ldlm_iterator_t it, void *data)
1303 EXP_CHECK_DT_OP(exp, find_cbdata);
1304 EXP_COUNTER_INCREMENT(exp, find_cbdata);
1306 rc = OBP(exp->exp_obd, find_cbdata)(exp, lsm, it, data);
1310 static inline void obd_import_event(struct obd_device *obd,
1311 struct obd_import *imp,
1312 enum obd_import_event event)
1316 CERROR("NULL device\n");
1320 if (obd->obd_set_up && OBP(obd, import_event)) {
1321 OBD_COUNTER_INCREMENT(obd, import_event);
1322 OBP(obd, import_event)(obd, imp, event);
1327 static inline int obd_notify(struct obd_device *obd,
1328 struct obd_device *watched,
1329 enum obd_notify_event ev,
1336 if (!obd->obd_set_up) {
1337 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1341 if (!OBP(obd, notify)) {
1342 CDEBUG(D_HA, "obd %s has no notify handler\n", obd->obd_name);
1346 OBD_COUNTER_INCREMENT(obd, notify);
1347 rc = OBP(obd, notify)(obd, watched, ev, data);
1351 static inline int obd_notify_observer(struct obd_device *observer,
1352 struct obd_device *observed,
1353 enum obd_notify_event ev,
1359 struct obd_notify_upcall *onu;
1361 if (observer->obd_observer)
1362 rc1 = obd_notify(observer->obd_observer, observed, ev, data);
1366 * Also, call non-obd listener, if any
1368 onu = &observer->obd_upcall;
1369 if (onu->onu_upcall != NULL)
1370 rc2 = onu->onu_upcall(observer, observed, ev,
1371 onu->onu_owner, NULL);
1375 return rc1 ? rc1 : rc2;
1378 static inline int obd_quotacheck(struct obd_export *exp,
1379 struct obd_quotactl *oqctl)
1384 EXP_CHECK_DT_OP(exp, quotacheck);
1385 EXP_COUNTER_INCREMENT(exp, quotacheck);
1387 rc = OBP(exp->exp_obd, quotacheck)(exp->exp_obd, exp, oqctl);
1391 static inline int obd_quotactl(struct obd_export *exp,
1392 struct obd_quotactl *oqctl)
1397 EXP_CHECK_DT_OP(exp, quotactl);
1398 EXP_COUNTER_INCREMENT(exp, quotactl);
1400 rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl);
1404 static inline int obd_health_check(const struct lu_env *env,
1405 struct obd_device *obd)
1407 /* returns: 0 on healthy
1408 * >0 on unhealthy + reason code/flag
1409 * however the only suppored reason == 1 right now
1410 * We'll need to define some better reasons
1411 * or flags in the future.
1417 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1418 if (obd == NULL || !OBT(obd)) {
1419 CERROR("cleaned up obd\n");
1420 RETURN(-EOPNOTSUPP);
1422 if (!obd->obd_set_up || obd->obd_stopping)
1424 if (!OBP(obd, health_check))
1427 rc = OBP(obd, health_check)(env, obd);
1431 static inline int obd_register_observer(struct obd_device *obd,
1432 struct obd_device *observer)
1436 down_write(&obd->obd_observer_link_sem);
1437 if (obd->obd_observer && observer) {
1438 up_write(&obd->obd_observer_link_sem);
1441 obd->obd_observer = observer;
1442 up_write(&obd->obd_observer_link_sem);
1446 /* metadata helpers */
1447 static inline int md_getstatus(struct obd_export *exp,
1448 struct lu_fid *fid, struct obd_capa **pc)
1453 EXP_CHECK_MD_OP(exp, getstatus);
1454 EXP_MD_COUNTER_INCREMENT(exp, getstatus);
1455 rc = MDP(exp->exp_obd, getstatus)(exp, fid, pc);
1459 static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data,
1460 struct ptlrpc_request **request)
1464 EXP_CHECK_MD_OP(exp, getattr);
1465 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1466 rc = MDP(exp->exp_obd, getattr)(exp, op_data, request);
1470 static inline int md_null_inode(struct obd_export *exp,
1471 const struct lu_fid *fid)
1475 EXP_CHECK_MD_OP(exp, null_inode);
1476 EXP_MD_COUNTER_INCREMENT(exp, null_inode);
1477 rc = MDP(exp->exp_obd, null_inode)(exp, fid);
1481 static inline int md_find_cbdata(struct obd_export *exp,
1482 const struct lu_fid *fid,
1483 ldlm_iterator_t it, void *data)
1487 EXP_CHECK_MD_OP(exp, find_cbdata);
1488 EXP_MD_COUNTER_INCREMENT(exp, find_cbdata);
1489 rc = MDP(exp->exp_obd, find_cbdata)(exp, fid, it, data);
1493 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1494 struct md_open_data *mod,
1495 struct ptlrpc_request **request)
1499 EXP_CHECK_MD_OP(exp, close);
1500 EXP_MD_COUNTER_INCREMENT(exp, close);
1501 rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
1505 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1506 const void *data, int datalen, int mode, __u32 uid,
1507 __u32 gid, cfs_cap_t cap_effective, __u64 rdev,
1508 struct ptlrpc_request **request)
1512 EXP_CHECK_MD_OP(exp, create);
1513 EXP_MD_COUNTER_INCREMENT(exp, create);
1514 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1515 uid, gid, cap_effective, rdev, request);
1519 static inline int md_done_writing(struct obd_export *exp,
1520 struct md_op_data *op_data,
1521 struct md_open_data *mod)
1525 EXP_CHECK_MD_OP(exp, done_writing);
1526 EXP_MD_COUNTER_INCREMENT(exp, done_writing);
1527 rc = MDP(exp->exp_obd, done_writing)(exp, op_data, mod);
1531 static inline int md_enqueue(struct obd_export *exp,
1532 struct ldlm_enqueue_info *einfo,
1533 const union ldlm_policy_data *policy,
1534 struct lookup_intent *it,
1535 struct md_op_data *op_data,
1536 struct lustre_handle *lockh,
1537 __u64 extra_lock_flags)
1541 EXP_CHECK_MD_OP(exp, enqueue);
1542 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1543 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, policy, it, op_data, lockh,
1548 static inline int md_getattr_name(struct obd_export *exp,
1549 struct md_op_data *op_data,
1550 struct ptlrpc_request **request)
1554 EXP_CHECK_MD_OP(exp, getattr_name);
1555 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1556 rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request);
1560 static inline int md_intent_lock(struct obd_export *exp,
1561 struct md_op_data *op_data,
1562 struct lookup_intent *it,
1563 struct ptlrpc_request **reqp,
1564 ldlm_blocking_callback cb_blocking,
1565 __u64 extra_lock_flags)
1569 EXP_CHECK_MD_OP(exp, intent_lock);
1570 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1571 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, it, reqp, cb_blocking,
1576 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1577 struct ptlrpc_request **request)
1581 EXP_CHECK_MD_OP(exp, link);
1582 EXP_MD_COUNTER_INCREMENT(exp, link);
1583 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1587 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1588 const char *old, int oldlen, const char *new,
1589 int newlen, struct ptlrpc_request **request)
1593 EXP_CHECK_MD_OP(exp, rename);
1594 EXP_MD_COUNTER_INCREMENT(exp, rename);
1595 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
1600 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
1601 void *ea, int ealen, void *ea2, int ea2len,
1602 struct ptlrpc_request **request,
1603 struct md_open_data **mod)
1607 EXP_CHECK_MD_OP(exp, setattr);
1608 EXP_MD_COUNTER_INCREMENT(exp, setattr);
1609 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen,
1610 ea2, ea2len, request, mod);
1614 static inline int md_fsync(struct obd_export *exp, const struct lu_fid *fid,
1615 struct obd_capa *oc, struct ptlrpc_request **request)
1619 EXP_CHECK_MD_OP(exp, fsync);
1620 EXP_MD_COUNTER_INCREMENT(exp, fsync);
1621 rc = MDP(exp->exp_obd, fsync)(exp, fid, oc, request);
1625 static inline int md_read_page(struct obd_export *exp,
1626 struct md_op_data *op_data,
1627 struct md_callback *cb_op,
1629 struct page **ppage)
1633 EXP_CHECK_MD_OP(exp, read_page);
1634 EXP_MD_COUNTER_INCREMENT(exp, read_page);
1635 rc = MDP(exp->exp_obd, read_page)(exp, op_data, cb_op, hash_offset,
1640 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
1641 struct ptlrpc_request **request)
1645 EXP_CHECK_MD_OP(exp, unlink);
1646 EXP_MD_COUNTER_INCREMENT(exp, unlink);
1647 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
1651 static inline int md_get_lustre_md(struct obd_export *exp,
1652 struct ptlrpc_request *req,
1653 struct obd_export *dt_exp,
1654 struct obd_export *md_exp,
1655 struct lustre_md *md)
1658 EXP_CHECK_MD_OP(exp, get_lustre_md);
1659 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
1660 RETURN(MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md));
1663 static inline int md_free_lustre_md(struct obd_export *exp,
1664 struct lustre_md *md)
1667 EXP_CHECK_MD_OP(exp, free_lustre_md);
1668 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
1669 RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md));
1672 static inline int md_update_lsm_md(struct obd_export *exp,
1673 struct lmv_stripe_md *lsm,
1674 struct mdt_body *body,
1675 ldlm_blocking_callback cb)
1678 EXP_CHECK_MD_OP(exp, update_lsm_md);
1679 EXP_MD_COUNTER_INCREMENT(exp, update_lsm_md);
1680 RETURN(MDP(exp->exp_obd, update_lsm_md)(exp, lsm, body, cb));
1683 static inline int md_merge_attr(struct obd_export *exp,
1684 const struct lmv_stripe_md *lsm,
1685 struct cl_attr *attr)
1688 EXP_CHECK_MD_OP(exp, merge_attr);
1689 EXP_MD_COUNTER_INCREMENT(exp, merge_attr);
1690 RETURN(MDP(exp->exp_obd, merge_attr)(exp, lsm, attr));
1693 static inline int md_setxattr(struct obd_export *exp,
1694 const struct lu_fid *fid, struct obd_capa *oc,
1695 obd_valid valid, const char *name,
1696 const char *input, int input_size,
1697 int output_size, int flags, __u32 suppgid,
1698 struct ptlrpc_request **request)
1701 EXP_CHECK_MD_OP(exp, setxattr);
1702 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
1703 RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, oc, valid, name, input,
1704 input_size, output_size, flags,
1708 static inline int md_getxattr(struct obd_export *exp,
1709 const struct lu_fid *fid, struct obd_capa *oc,
1710 obd_valid valid, const char *name,
1711 const char *input, int input_size,
1712 int output_size, int flags,
1713 struct ptlrpc_request **request)
1716 EXP_CHECK_MD_OP(exp, getxattr);
1717 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
1718 RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, oc, valid, name, input,
1719 input_size, output_size, flags,
1723 static inline int md_set_open_replay_data(struct obd_export *exp,
1724 struct obd_client_handle *och,
1725 struct lookup_intent *it)
1728 EXP_CHECK_MD_OP(exp, set_open_replay_data);
1729 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
1730 RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, it));
1733 static inline int md_clear_open_replay_data(struct obd_export *exp,
1734 struct obd_client_handle *och)
1737 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
1738 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
1739 RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och));
1742 static inline int md_set_lock_data(struct obd_export *exp,
1743 __u64 *lockh, void *data, __u64 *bits)
1746 EXP_CHECK_MD_OP(exp, set_lock_data);
1747 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
1748 RETURN(MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits));
1751 static inline int md_cancel_unused(struct obd_export *exp,
1752 const struct lu_fid *fid,
1753 ldlm_policy_data_t *policy,
1755 ldlm_cancel_flags_t flags,
1761 EXP_CHECK_MD_OP(exp, cancel_unused);
1762 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
1764 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
1769 static inline ldlm_mode_t md_lock_match(struct obd_export *exp, __u64 flags,
1770 const struct lu_fid *fid,
1772 ldlm_policy_data_t *policy,
1774 struct lustre_handle *lockh)
1777 EXP_CHECK_MD_OP(exp, lock_match);
1778 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
1779 RETURN(MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
1780 policy, mode, lockh));
1783 static inline int md_init_ea_size(struct obd_export *exp, int easize,
1784 int def_asize, int cookiesize,
1788 EXP_CHECK_MD_OP(exp, init_ea_size);
1789 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
1790 RETURN(MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
1791 cookiesize, def_cookiesize));
1794 static inline int md_get_remote_perm(struct obd_export *exp,
1795 const struct lu_fid *fid,
1796 struct obd_capa *oc, __u32 suppgid,
1797 struct ptlrpc_request **request)
1800 EXP_CHECK_MD_OP(exp, get_remote_perm);
1801 EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm);
1802 RETURN(MDP(exp->exp_obd, get_remote_perm)(exp, fid, oc, suppgid,
1806 static inline int md_renew_capa(struct obd_export *exp, struct obd_capa *ocapa,
1811 EXP_CHECK_MD_OP(exp, renew_capa);
1812 EXP_MD_COUNTER_INCREMENT(exp, renew_capa);
1813 rc = MDP(exp->exp_obd, renew_capa)(exp, ocapa, cb);
1817 static inline int md_unpack_capa(struct obd_export *exp,
1818 struct ptlrpc_request *req,
1819 const struct req_msg_field *field,
1820 struct obd_capa **oc)
1824 EXP_CHECK_MD_OP(exp, unpack_capa);
1825 EXP_MD_COUNTER_INCREMENT(exp, unpack_capa);
1826 rc = MDP(exp->exp_obd, unpack_capa)(exp, req, field, oc);
1830 static inline int md_intent_getattr_async(struct obd_export *exp,
1831 struct md_enqueue_info *minfo,
1832 struct ldlm_enqueue_info *einfo)
1836 EXP_CHECK_MD_OP(exp, intent_getattr_async);
1837 EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
1838 rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo, einfo);
1842 static inline int md_revalidate_lock(struct obd_export *exp,
1843 struct lookup_intent *it,
1844 struct lu_fid *fid, __u64 *bits)
1848 EXP_CHECK_MD_OP(exp, revalidate_lock);
1849 EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
1850 rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits);
1854 static inline int md_get_fid_from_lsm(struct obd_export *exp,
1855 const struct lmv_stripe_md *lsm,
1856 const char *name, int namelen,
1861 EXP_CHECK_MD_OP(exp, get_fid_from_lsm);
1862 EXP_MD_COUNTER_INCREMENT(exp, get_fid_from_lsm);
1863 rc = MDP(exp->exp_obd, get_fid_from_lsm)(exp, lsm, name, namelen, fid);
1867 /* OBD Metadata Support */
1869 extern int obd_init_caches(void);
1870 extern void obd_cleanup_caches(void);
1872 /* support routines */
1873 extern struct kmem_cache *obdo_cachep;
1875 #define OBDO_ALLOC(ptr) \
1877 OBD_SLAB_ALLOC_PTR_GFP((ptr), obdo_cachep, GFP_NOFS); \
1880 #define OBDO_FREE(ptr) \
1882 OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
1886 typedef int (*register_lwp_cb)(void *data);
1888 struct lwp_register_item {
1889 struct obd_export **lri_exp;
1890 register_lwp_cb lri_cb_func;
1892 struct list_head lri_list;
1893 char lri_name[MTI_NAME_MAXLEN];
1896 /* I'm as embarrassed about this as you are.
1898 * <shaver> // XXX do not look into _superhack with remaining eye
1899 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
1900 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
1903 #ifdef HAVE_SERVER_SUPPORT
1904 int lustre_register_lwp_item(const char *lwpname, struct obd_export **exp,
1905 register_lwp_cb cb_func, void *cb_data);
1906 void lustre_deregister_lwp_item(struct obd_export **exp);
1907 struct obd_export *lustre_find_lwp_by_index(const char *dev, __u32 idx);
1908 int tgt_name2lwp_name(const char *tgt_name, char *lwp_name, int len, __u32 idx);
1909 #endif /* HAVE_SERVER_SUPPORT */
1912 extern void obd_sysctl_init (void);
1913 extern void obd_sysctl_clean (void);
1916 typedef __u8 class_uuid_t[16];
1917 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
1920 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
1921 int class_add_uuid(const char *uuid, __u64 nid);
1922 int class_del_uuid (const char *uuid);
1923 int class_check_uuid(struct obd_uuid *uuid, __u64 nid);
1924 void class_init_uuidlist(void);
1925 void class_exit_uuidlist(void);
1928 #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
1932 void statfs_pack(struct obd_statfs *osfs, struct kstatfs *sfs);
1933 void statfs_unpack(struct kstatfs *sfs, struct obd_statfs *osfs);
1935 /* root squash info */
1936 struct rw_semaphore;
1937 struct root_squash_info {
1940 struct list_head rsi_nosquash_nids;
1941 struct rw_semaphore rsi_sem;
1944 int server_name2index(const char *svname, __u32 *idx, const char **endptr);
1946 #endif /* __LINUX_OBD_CLASS_H */