4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2013, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
40 # include <liblustre.h>
43 #include <obd_support.h>
44 #include <lustre_import.h>
45 #include <lustre_net.h>
47 #include <lustre_lib.h>
48 #include <lustre/lustre_idl.h>
49 #include <lprocfs_status.h>
51 #if defined(__linux__)
52 #include <linux/obd_class.h>
53 #elif defined(__APPLE__)
54 #include <darwin/obd_class.h>
55 #elif defined(__WINNT__)
56 #include <winnt/obd_class.h>
58 #error Unsupported operating system.
61 #define OBD_STATFS_NODELAY 0x0001 /* requests should be send without delay
62 * and resends for avoid deadlocks */
63 #define OBD_STATFS_FROM_CACHE 0x0002 /* the statfs callback should not update
65 #define OBD_STATFS_PTLRPCD 0x0004 /* requests will be sent via ptlrpcd
66 * instead of a specific set. This
67 * means that we cannot rely on the set
68 * interpret routine to be called.
69 * lov_statfs_fini() must thus be called
70 * by the request interpret routine */
71 #define OBD_STATFS_FOR_MDT0 0x0008 /* The statfs is only for retrieving
72 * information from MDT0. */
73 #define OBD_FL_PUNCH 0x00000001 /* To indicate it is punch operation */
75 /* OBD Device Declarations */
76 extern struct obd_device *obd_devs[MAX_OBD_DEVICES];
77 extern rwlock_t obd_dev_lock;
79 /* OBD Operations Declarations */
80 extern struct obd_device *class_conn2obd(struct lustre_handle *);
81 extern struct obd_device *class_exp2obd(struct obd_export *);
82 extern int class_handle_ioctl(unsigned int cmd, unsigned long arg);
83 extern int lustre_get_jobid(char *jobid);
85 struct lu_device_type;
88 struct obd_export *class_conn2export(struct lustre_handle *);
89 int class_register_type(struct obd_ops *, struct md_ops *,
90 struct lprocfs_seq_vars *module_vars,
91 #ifndef HAVE_ONLY_PROCFS_SEQ
92 struct lprocfs_vars *,
95 struct lu_device_type *ldt);
96 int class_unregister_type(const char *nm);
98 struct obd_device *class_newdev(const char *type_name, const char *name);
99 void class_release_dev(struct obd_device *obd);
101 int class_name2dev(const char *name);
102 struct obd_device *class_name2obd(const char *name);
103 int class_uuid2dev(struct obd_uuid *uuid);
104 struct obd_device *class_uuid2obd(struct obd_uuid *uuid);
105 void class_obd_list(void);
106 struct obd_device * class_find_client_obd(struct obd_uuid *tgt_uuid,
107 const char * typ_name,
108 struct obd_uuid *grp_uuid);
109 struct obd_device * class_devices_in_group(struct obd_uuid *grp_uuid,
111 struct obd_device * class_num2obd(int num);
112 int get_devices_count(void);
114 int class_notify_sptlrpc_conf(const char *fsname, int namelen);
116 char *obd_export_nid2str(struct obd_export *exp);
118 int obd_export_evict_by_nid(struct obd_device *obd, const char *nid);
119 int obd_export_evict_by_uuid(struct obd_device *obd, const char *uuid);
120 int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep);
122 int obd_zombie_impexp_init(void);
123 void obd_zombie_impexp_stop(void);
124 void obd_zombie_impexp_cull(void);
125 void obd_zombie_barrier(void);
126 void obd_exports_barrier(struct obd_device *obd);
127 int kuc_len(int payload_len);
128 struct kuc_hdr * kuc_ptr(void *p);
129 int kuc_ispayload(void *p);
130 void *kuc_alloc(int payload_len, int transport, int type);
131 void kuc_free(void *p, int payload_len);
135 typedef int (*llog_cb_t)(const struct lu_env *, struct llog_handle *,
136 struct llog_rec_hdr *, void *);
138 struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg,
139 const char *new_name);
140 int class_process_config(struct lustre_cfg *lcfg);
141 #ifndef HAVE_ONLY_PROCFS_SEQ
142 int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
143 struct lustre_cfg *lcfg, void *data);
145 int class_process_proc_seq_param(char *prefix, struct lprocfs_seq_vars *lvars,
146 struct lustre_cfg *lcfg, void *data);
147 int class_attach(struct lustre_cfg *lcfg);
148 int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
149 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg);
150 int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg);
151 struct obd_device *class_incref(struct obd_device *obd,
152 const char *scope, const void *source);
153 void class_decref(struct obd_device *obd,
154 const char *scope, const void *source);
155 void dump_exports(struct obd_device *obd, int locks);
156 int class_config_llog_handler(const struct lu_env *env,
157 struct llog_handle *handle,
158 struct llog_rec_hdr *rec, void *data);
159 int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg);
160 int class_add_uuid(const char *uuid, __u64 nid);
162 #define CFG_F_START 0x01 /* Set when we start updating from a log */
163 #define CFG_F_MARKER 0x02 /* We are within a maker */
164 #define CFG_F_SKIP 0x04 /* We should ignore this cfg command */
165 #define CFG_F_COMPAT146 0x08 /* Allow old-style logs */
166 #define CFG_F_EXCLUDE 0x10 /* OST exclusion list */
168 /* Passed as data param to class_config_parse_llog */
169 struct config_llog_instance {
172 struct super_block *cfg_sb;
173 struct obd_uuid cfg_uuid;
174 llog_cb_t cfg_callback;
175 int cfg_last_idx; /* for partial llog processing */
179 int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
180 char *name, struct config_llog_instance *cfg);
181 int class_config_dump_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
182 char *name, struct config_llog_instance *cfg);
186 CONFIG_T_SPTLRPC = 1,
187 CONFIG_T_RECOVER = 2,
192 #define PARAMS_FILENAME "params"
193 #define LCTL_UPCALL "lctl"
195 /* list of active configuration logs */
196 struct config_llog_data {
197 struct ldlm_res_id cld_resid;
198 struct config_llog_instance cld_cfg;
199 cfs_list_t cld_list_chain;
200 atomic_t cld_refcount;
201 struct config_llog_data *cld_sptlrpc;/* depended sptlrpc log */
202 struct config_llog_data *cld_params; /* common parameters log */
203 struct config_llog_data *cld_recover;/* imperative recover log */
204 struct obd_export *cld_mgcexp;
205 struct mutex cld_lock;
207 unsigned int cld_stopping:1, /* we were told to stop
209 cld_lostlock:1; /* lock not requeued */
213 struct lustre_profile {
220 struct lustre_profile *class_get_profile(const char * prof);
221 void class_del_profile(const char *prof);
222 void class_del_profiles(void);
224 #if LUSTRE_TRACKS_LOCK_EXP_REFS
226 void __class_export_add_lock_ref(struct obd_export *, struct ldlm_lock *);
227 void __class_export_del_lock_ref(struct obd_export *, struct ldlm_lock *);
228 extern void (*class_export_dump_hook)(struct obd_export *);
232 #define __class_export_add_lock_ref(exp, lock) do {} while(0)
233 #define __class_export_del_lock_ref(exp, lock) do {} while(0)
237 #define class_export_rpc_inc(exp) \
239 atomic_inc(&(exp)->exp_rpc_count); \
240 CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \
241 (exp), atomic_read(&(exp)->exp_rpc_count)); \
244 #define class_export_rpc_dec(exp) \
246 LASSERT_ATOMIC_POS(&exp->exp_rpc_count); \
247 atomic_dec(&(exp)->exp_rpc_count); \
248 CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \
249 (exp), atomic_read(&(exp)->exp_rpc_count)); \
252 #define class_export_lock_get(exp, lock) \
254 atomic_inc(&(exp)->exp_locks_count); \
255 __class_export_add_lock_ref(exp, lock); \
256 CDEBUG(D_INFO, "lock GETting export %p : new locks_count %d\n", \
257 (exp), atomic_read(&(exp)->exp_locks_count)); \
258 class_export_get(exp); \
261 #define class_export_lock_put(exp, lock) \
263 LASSERT_ATOMIC_POS(&exp->exp_locks_count); \
264 atomic_dec(&(exp)->exp_locks_count); \
265 __class_export_del_lock_ref(exp, lock); \
266 CDEBUG(D_INFO, "lock PUTting export %p : new locks_count %d\n", \
267 (exp), atomic_read(&(exp)->exp_locks_count)); \
268 class_export_put(exp); \
271 #define class_export_cb_get(exp) \
273 atomic_inc(&(exp)->exp_cb_count); \
274 CDEBUG(D_INFO, "callback GETting export %p : new cb_count %d\n",\
275 (exp), atomic_read(&(exp)->exp_cb_count)); \
276 class_export_get(exp); \
279 #define class_export_cb_put(exp) \
281 LASSERT_ATOMIC_POS(&exp->exp_cb_count); \
282 atomic_dec(&(exp)->exp_cb_count); \
283 CDEBUG(D_INFO, "callback PUTting export %p : new cb_count %d\n",\
284 (exp), atomic_read(&(exp)->exp_cb_count)); \
285 class_export_put(exp); \
289 struct obd_export *class_export_get(struct obd_export *exp);
290 void class_export_put(struct obd_export *exp);
291 struct obd_export *class_new_export(struct obd_device *obddev,
292 struct obd_uuid *cluuid);
293 void class_unlink_export(struct obd_export *exp);
295 struct obd_import *class_import_get(struct obd_import *);
296 void class_import_put(struct obd_import *);
297 struct obd_import *class_new_import(struct obd_device *obd);
298 void class_destroy_import(struct obd_import *exp);
300 struct obd_type *class_search_type(const char *name);
301 struct obd_type *class_get_type(const char *name);
302 void class_put_type(struct obd_type *type);
303 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
304 struct obd_uuid *cluuid);
305 int class_disconnect(struct obd_export *exp);
306 void class_fail_export(struct obd_export *exp);
307 int class_connected_export(struct obd_export *exp);
308 void class_disconnect_exports(struct obd_device *obddev);
309 int class_manual_cleanup(struct obd_device *obd);
310 void class_disconnect_stale_exports(struct obd_device *,
311 int (*test_export)(struct obd_export *));
312 static inline enum obd_option exp_flags_from_obd(struct obd_device *obd)
314 return ((obd->obd_fail ? OBD_OPT_FAILOVER : 0) |
315 (obd->obd_force ? OBD_OPT_FORCE : 0) |
316 (obd->obd_abort_recovery ? OBD_OPT_ABORT_RECOV : 0) |
320 #ifdef HAVE_SERVER_SUPPORT
321 static inline struct lu_target *class_exp2tgt(struct obd_export *exp)
323 LASSERT(exp->exp_obd);
324 return exp->exp_obd->u.obt.obt_lut;
327 static inline struct lr_server_data *class_server_data(struct obd_device *obd)
329 LASSERT(obd->u.obt.obt_lut);
330 return &obd->u.obt.obt_lut->lut_lsd;
334 void obdo_cpy_md(struct obdo *dst, struct obdo *src, obd_flag valid);
335 void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj);
336 void obdo_from_iattr(struct obdo *oa, struct iattr *attr,
337 unsigned int ia_valid);
338 void iattr_from_obdo(struct iattr *attr, struct obdo *oa, obd_flag valid);
339 void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, obd_flag valid);
340 void obdo_from_md(struct obdo *oa, struct md_op_data *op_data,
343 #define OBT(dev) (dev)->obd_type
344 #define OBP(dev, op) (dev)->obd_type->typ_dt_ops->o_ ## op
345 #define MDP(dev, op) (dev)->obd_type->typ_md_ops->m_ ## op
346 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
348 /* Ensure obd_setup: used for cleanup which must be called
349 while obd is stopping */
350 #define OBD_CHECK_DEV(obd) \
353 CERROR("NULL device\n"); \
358 /* ensure obd_setup and !obd_stopping */
359 #define OBD_CHECK_DEV_ACTIVE(obd) \
361 OBD_CHECK_DEV(obd); \
362 if (!(obd)->obd_set_up || (obd)->obd_stopping) { \
363 CERROR("Device %d not setup\n", \
371 #define OBD_COUNTER_OFFSET(op) \
372 ((offsetof(struct obd_ops, o_ ## op) - \
373 offsetof(struct obd_ops, o_iocontrol)) \
374 / sizeof(((struct obd_ops *)NULL)->o_iocontrol))
376 /* The '- 1' below is for o_owner. */
377 #define NUM_OBD_STATS \
378 (sizeof(struct obd_ops) / \
379 sizeof(((struct obd_ops *)NULL)->o_iocontrol) - 1)
381 #define OBD_COUNTER_INCREMENT(obd, op) \
382 lprocfs_counter_incr((obd)->obd_stats, \
383 (obd)->obd_cntr_base + OBD_COUNTER_OFFSET(op))
385 #define EXP_COUNTER_INCREMENT(exp, op) \
388 _off = (exp)->exp_obd->obd_cntr_base + OBD_COUNTER_OFFSET(op); \
389 lprocfs_counter_incr((exp)->exp_obd->obd_stats, _off); \
390 if ((exp)->exp_obd->obd_uses_nid_stats && \
391 (exp)->exp_nid_stats != NULL) \
392 lprocfs_counter_incr((exp)->exp_nid_stats->nid_stats, \
396 #define _MD_COUNTER_OFFSET(m_op) \
397 ((offsetof(struct md_ops, m_op) - \
398 offsetof(struct md_ops, MD_STATS_FIRST_OP)) / \
399 sizeof(((struct md_ops *)NULL)->MD_STATS_FIRST_OP))
401 #define MD_COUNTER_OFFSET(op) _MD_COUNTER_OFFSET(m_ ## op)
403 #define NUM_MD_STATS \
404 (_MD_COUNTER_OFFSET(MD_STATS_LAST_OP) - \
405 _MD_COUNTER_OFFSET(MD_STATS_FIRST_OP) + 1)
407 /* Note that we only increment md counters for ops whose offset is less
408 * than NUM_MD_STATS. This is explained in a comment in the definition
409 * of struct md_ops. */
410 #define EXP_MD_COUNTER_INCREMENT(exp, op) \
412 if (MD_COUNTER_OFFSET(op) < NUM_MD_STATS) \
413 lprocfs_counter_incr((exp)->exp_obd->obd_md_stats, \
414 (exp)->exp_obd->obd_md_cntr_base + \
415 MD_COUNTER_OFFSET(op)); \
419 #define OBD_COUNTER_OFFSET(op)
420 #define OBD_COUNTER_INCREMENT(obd, op)
421 #define EXP_COUNTER_INCREMENT(exp, op)
422 #define EXP_MD_COUNTER_INCREMENT(exp, op)
425 static inline int lprocfs_nid_ldlm_stats_init(struct nid_stat* tmp)
427 /* Always add in ldlm_stats */
428 tmp->nid_ldlm_stats = lprocfs_alloc_stats(LDLM_LAST_OPC - LDLM_FIRST_OPC
429 ,LPROCFS_STATS_FLAG_NOPERCPU);
430 if (tmp->nid_ldlm_stats == NULL)
433 lprocfs_init_ldlm_stats(tmp->nid_ldlm_stats);
435 return lprocfs_register_stats(tmp->nid_proc, "ldlm_stats",
436 tmp->nid_ldlm_stats);
439 #define EXP_CHECK_MD_OP(exp, op) \
441 if ((exp) == NULL) { \
442 CERROR("obd_" #op ": NULL export\n"); \
445 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
446 CERROR("obd_" #op ": cleaned up obd\n"); \
447 RETURN(-EOPNOTSUPP); \
449 if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
450 CERROR("obd_" #op ": dev %s/%d no operation\n", \
451 (exp)->exp_obd->obd_name, \
452 (exp)->exp_obd->obd_minor); \
453 RETURN(-EOPNOTSUPP); \
458 #define OBD_CHECK_DT_OP(obd, op, err) \
460 if (!OBT(obd) || !OBP((obd), op)) { \
462 CERROR("obd_" #op ": dev %d no operation\n", \
468 #define EXP_CHECK_DT_OP(exp, op) \
470 if ((exp) == NULL) { \
471 CERROR("obd_" #op ": NULL export\n"); \
474 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
475 CERROR("obd_" #op ": cleaned up obd\n"); \
476 RETURN(-EOPNOTSUPP); \
478 if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
479 CERROR("obd_" #op ": dev %d no operation\n", \
480 (exp)->exp_obd->obd_minor); \
481 RETURN(-EOPNOTSUPP); \
485 #define CTXT_CHECK_OP(ctxt, op, err) \
487 if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
489 CERROR("lop_" #op ": dev %d no operation\n", \
490 ctxt->loc_obd->obd_minor); \
495 static inline int class_devno_max(void)
497 return MAX_OBD_DEVICES;
500 static inline int obd_get_info(const struct lu_env *env,
501 struct obd_export *exp, __u32 keylen,
502 void *key, __u32 *vallen, void *val,
503 struct lov_stripe_md *lsm)
508 EXP_CHECK_DT_OP(exp, get_info);
509 EXP_COUNTER_INCREMENT(exp, get_info);
511 rc = OBP(exp->exp_obd, get_info)(env, exp, keylen, key, vallen, val,
516 static inline int obd_set_info_async(const struct lu_env *env,
517 struct obd_export *exp, obd_count keylen,
518 void *key, obd_count vallen, void *val,
519 struct ptlrpc_request_set *set)
524 EXP_CHECK_DT_OP(exp, set_info_async);
525 EXP_COUNTER_INCREMENT(exp, set_info_async);
527 rc = OBP(exp->exp_obd, set_info_async)(env, exp, keylen, key, vallen,
533 * obd-lu integration.
535 * Functionality is being moved into new lu_device-based layering, but some
536 * pieces of configuration process are still based on obd devices.
538 * Specifically, lu_device_type_operations::ldto_device_alloc() methods fully
539 * subsume ->o_setup() methods of obd devices they replace. The same for
540 * lu_device_operations::ldo_process_config() and ->o_process_config(). As a
541 * result, obd_setup() and obd_process_config() branch and call one XOR
544 * Yet neither lu_device_type_operations::ldto_device_fini() nor
545 * lu_device_type_operations::ldto_device_free() fully implement the
546 * functionality of ->o_precleanup() and ->o_cleanup() they override. Hence,
547 * obd_precleanup() and obd_cleanup() call both lu_device and obd operations.
550 #define DECLARE_LU_VARS(ldt, d) \
551 struct lu_device_type *ldt; \
554 static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
557 DECLARE_LU_VARS(ldt, d);
560 ldt = obd->obd_type->typ_lu;
562 struct lu_context session_ctx;
564 lu_context_init(&session_ctx, LCT_SESSION | LCT_SERVER_SESSION);
565 session_ctx.lc_thread = NULL;
566 lu_context_enter(&session_ctx);
568 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
570 env.le_ses = &session_ctx;
571 d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
580 lu_context_exit(&session_ctx);
581 lu_context_fini(&session_ctx);
584 OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
585 OBD_COUNTER_INCREMENT(obd, setup);
586 rc = OBP(obd, setup)(obd, cfg);
591 static inline int obd_precleanup(struct obd_device *obd,
592 enum obd_cleanup_stage cleanup_stage)
595 DECLARE_LU_VARS(ldt, d);
599 ldt = obd->obd_type->typ_lu;
601 if (ldt != NULL && d != NULL) {
602 if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
605 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
607 ldt->ldt_ops->ldto_device_fini(&env, d);
612 OBD_CHECK_DT_OP(obd, precleanup, 0);
613 OBD_COUNTER_INCREMENT(obd, precleanup);
615 rc = OBP(obd, precleanup)(obd, cleanup_stage);
619 static inline int obd_cleanup(struct obd_device *obd)
622 DECLARE_LU_VARS(ldt, d);
627 ldt = obd->obd_type->typ_lu;
629 if (ldt != NULL && d != NULL) {
632 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
634 ldt->ldt_ops->ldto_device_free(&env, d);
636 obd->obd_lu_dev = NULL;
639 OBD_CHECK_DT_OP(obd, cleanup, 0);
640 OBD_COUNTER_INCREMENT(obd, cleanup);
642 rc = OBP(obd, cleanup)(obd);
646 static inline void obd_cleanup_client_import(struct obd_device *obd)
650 /* If we set up but never connected, the
651 client import will not have been cleaned. */
652 down_write(&obd->u.cli.cl_sem);
653 if (obd->u.cli.cl_import) {
654 struct obd_import *imp;
655 imp = obd->u.cli.cl_import;
656 CDEBUG(D_CONFIG, "%s: client import never connected\n",
658 ptlrpc_invalidate_import(imp);
659 if (imp->imp_rq_pool) {
660 ptlrpc_free_rq_pool(imp->imp_rq_pool);
661 imp->imp_rq_pool = NULL;
663 client_destroy_import(imp);
664 obd->u.cli.cl_import = NULL;
666 up_write(&obd->u.cli.cl_sem);
672 obd_process_config(struct obd_device *obd, int datalen, void *data)
675 DECLARE_LU_VARS(ldt, d);
680 obd->obd_process_conf = 1;
681 ldt = obd->obd_type->typ_lu;
683 if (ldt != NULL && d != NULL) {
686 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
688 rc = d->ld_ops->ldo_process_config(&env, d, data);
692 OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
693 rc = OBP(obd, process_config)(obd, datalen, data);
695 OBD_COUNTER_INCREMENT(obd, process_config);
696 obd->obd_process_conf = 0;
701 /* Pack an in-memory MD struct for storage on disk.
702 * Returns +ve size of packed MD (0 for free), or -ve error.
704 * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL).
705 * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed.
706 * If @*disk_tgt == NULL, it will be allocated
708 static inline int obd_packmd(struct obd_export *exp,
709 struct lov_mds_md **disk_tgt,
710 struct lov_stripe_md *mem_src)
715 EXP_CHECK_DT_OP(exp, packmd);
716 EXP_COUNTER_INCREMENT(exp, packmd);
718 rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src);
722 static inline int obd_size_diskmd(struct obd_export *exp,
723 struct lov_stripe_md *mem_src)
725 return obd_packmd(exp, NULL, mem_src);
728 static inline int obd_free_diskmd(struct obd_export *exp,
729 struct lov_mds_md **disk_tgt)
734 * LU-2590, for caller's convenience, *disk_tgt could be host
735 * endianness, it needs swab to LE if necessary, while just
736 * lov_mds_md header needs it for figuring out how much memory
739 if ((cpu_to_le32(LOV_MAGIC) != LOV_MAGIC) &&
740 (((*disk_tgt)->lmm_magic == LOV_MAGIC_V1) ||
741 ((*disk_tgt)->lmm_magic == LOV_MAGIC_V3)))
742 lustre_swab_lov_mds_md(*disk_tgt);
743 return obd_packmd(exp, disk_tgt, NULL);
746 /* Unpack an MD struct from disk to in-memory format.
747 * Returns +ve size of unpacked MD (0 for free), or -ve error.
749 * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL).
750 * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed.
751 * If @*mem_tgt == NULL, it will be allocated
753 static inline int obd_unpackmd(struct obd_export *exp,
754 struct lov_stripe_md **mem_tgt,
755 struct lov_mds_md *disk_src,
761 EXP_CHECK_DT_OP(exp, unpackmd);
762 EXP_COUNTER_INCREMENT(exp, unpackmd);
764 rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len);
768 /* helper functions */
769 static inline int obd_alloc_memmd(struct obd_export *exp,
770 struct lov_stripe_md **mem_tgt)
773 LASSERT(*mem_tgt == NULL);
774 return obd_unpackmd(exp, mem_tgt, NULL, 0);
777 static inline int obd_free_memmd(struct obd_export *exp,
778 struct lov_stripe_md **mem_tgt)
784 rc = obd_unpackmd(exp, mem_tgt, NULL, 0);
789 static inline int obd_create_async(struct obd_export *exp,
790 struct obd_info *oinfo,
791 struct lov_stripe_md **ea,
792 struct obd_trans_info *oti)
797 EXP_CHECK_DT_OP(exp, create_async);
798 EXP_COUNTER_INCREMENT(exp, create_async);
800 rc = OBP(exp->exp_obd, create_async)(exp, oinfo, ea, oti);
804 static inline int obd_create(const struct lu_env *env, struct obd_export *exp,
805 struct obdo *obdo, struct lov_stripe_md **ea,
806 struct obd_trans_info *oti)
811 EXP_CHECK_DT_OP(exp, create);
812 EXP_COUNTER_INCREMENT(exp, create);
814 rc = OBP(exp->exp_obd, create)(env, exp, obdo, ea, oti);
818 static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp,
819 struct obdo *obdo, struct lov_stripe_md *ea,
820 struct obd_trans_info *oti,
821 struct obd_export *md_exp, void *capa)
826 EXP_CHECK_DT_OP(exp, destroy);
827 EXP_COUNTER_INCREMENT(exp, destroy);
829 rc = OBP(exp->exp_obd, destroy)(env, exp, obdo, ea, oti, md_exp, capa);
833 static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp,
834 struct obd_info *oinfo)
839 EXP_CHECK_DT_OP(exp, getattr);
840 EXP_COUNTER_INCREMENT(exp, getattr);
842 rc = OBP(exp->exp_obd, getattr)(env, exp, oinfo);
846 static inline int obd_getattr_async(struct obd_export *exp,
847 struct obd_info *oinfo,
848 struct ptlrpc_request_set *set)
853 EXP_CHECK_DT_OP(exp, getattr_async);
854 EXP_COUNTER_INCREMENT(exp, getattr_async);
856 rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set);
860 static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp,
861 struct obd_info *oinfo,
862 struct obd_trans_info *oti)
867 EXP_CHECK_DT_OP(exp, setattr);
868 EXP_COUNTER_INCREMENT(exp, setattr);
870 rc = OBP(exp->exp_obd, setattr)(env, exp, oinfo, oti);
874 /* This performs all the requests set init/wait/destroy actions. */
875 static inline int obd_setattr_rqset(struct obd_export *exp,
876 struct obd_info *oinfo,
877 struct obd_trans_info *oti)
879 struct ptlrpc_request_set *set = NULL;
883 EXP_CHECK_DT_OP(exp, setattr_async);
884 EXP_COUNTER_INCREMENT(exp, setattr_async);
886 set = ptlrpc_prep_set();
890 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
892 rc = ptlrpc_set_wait(set);
893 ptlrpc_set_destroy(set);
897 /* This adds all the requests into @set if @set != NULL, otherwise
898 all requests are sent asynchronously without waiting for response. */
899 static inline int obd_setattr_async(struct obd_export *exp,
900 struct obd_info *oinfo,
901 struct obd_trans_info *oti,
902 struct ptlrpc_request_set *set)
907 EXP_CHECK_DT_OP(exp, setattr_async);
908 EXP_COUNTER_INCREMENT(exp, setattr_async);
910 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
914 static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
917 struct obd_device *obd = imp->imp_obd;
921 OBD_CHECK_DEV_ACTIVE(obd);
922 OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
923 OBD_COUNTER_INCREMENT(obd, add_conn);
925 rc = OBP(obd, add_conn)(imp, uuid, priority);
929 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
931 struct obd_device *obd = imp->imp_obd;
935 OBD_CHECK_DEV_ACTIVE(obd);
936 OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
937 OBD_COUNTER_INCREMENT(obd, del_conn);
939 rc = OBP(obd, del_conn)(imp, uuid);
943 static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp)
945 struct obd_uuid *uuid;
948 OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL);
949 EXP_COUNTER_INCREMENT(exp, get_uuid);
951 uuid = OBP(exp->exp_obd, get_uuid)(exp);
955 /** Create a new /a exp on device /a obd for the uuid /a cluuid
956 * @param exp New export handle
957 * @param d Connect data, supported flags are set, flags also understood
958 * by obd are returned.
960 static inline int obd_connect(const struct lu_env *env,
961 struct obd_export **exp,struct obd_device *obd,
962 struct obd_uuid *cluuid,
963 struct obd_connect_data *data,
967 __u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
971 OBD_CHECK_DEV_ACTIVE(obd);
972 OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
973 OBD_COUNTER_INCREMENT(obd, connect);
975 rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata);
976 /* check that only subset is granted */
977 LASSERT(ergo(data != NULL, (data->ocd_connect_flags & ocf) ==
978 data->ocd_connect_flags));
982 static inline int obd_reconnect(const struct lu_env *env,
983 struct obd_export *exp,
984 struct obd_device *obd,
985 struct obd_uuid *cluuid,
986 struct obd_connect_data *d,
990 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
995 OBD_CHECK_DEV_ACTIVE(obd);
996 OBD_CHECK_DT_OP(obd, reconnect, 0);
997 OBD_COUNTER_INCREMENT(obd, reconnect);
999 rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
1000 /* check that only subset is granted */
1001 LASSERT(ergo(d != NULL,
1002 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
1006 static inline int obd_disconnect(struct obd_export *exp)
1011 EXP_CHECK_DT_OP(exp, disconnect);
1012 EXP_COUNTER_INCREMENT(exp, disconnect);
1014 rc = OBP(exp->exp_obd, disconnect)(exp);
1018 static inline int obd_fid_init(struct obd_device *obd, struct obd_export *exp,
1019 enum lu_cli_type type)
1024 OBD_CHECK_DT_OP(obd, fid_init, 0);
1025 OBD_COUNTER_INCREMENT(obd, fid_init);
1027 rc = OBP(obd, fid_init)(obd, exp, type);
1031 static inline int obd_fid_fini(struct obd_device *obd)
1036 OBD_CHECK_DT_OP(obd, fid_fini, 0);
1037 OBD_COUNTER_INCREMENT(obd, fid_fini);
1039 rc = OBP(obd, fid_fini)(obd);
1043 static inline int obd_fid_alloc(struct obd_export *exp,
1045 struct md_op_data *op_data)
1050 EXP_CHECK_DT_OP(exp, fid_alloc);
1051 EXP_COUNTER_INCREMENT(exp, fid_alloc);
1053 rc = OBP(exp->exp_obd, fid_alloc)(exp, fid, op_data);
1057 static inline int obd_ping(const struct lu_env *env, struct obd_export *exp)
1062 OBD_CHECK_DT_OP(exp->exp_obd, ping, 0);
1063 EXP_COUNTER_INCREMENT(exp, ping);
1065 rc = OBP(exp->exp_obd, ping)(env, exp);
1069 static inline int obd_pool_new(struct obd_device *obd, char *poolname)
1074 OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP);
1075 OBD_COUNTER_INCREMENT(obd, pool_new);
1077 rc = OBP(obd, pool_new)(obd, poolname);
1081 static inline int obd_pool_del(struct obd_device *obd, char *poolname)
1086 OBD_CHECK_DT_OP(obd, pool_del, -EOPNOTSUPP);
1087 OBD_COUNTER_INCREMENT(obd, pool_del);
1089 rc = OBP(obd, pool_del)(obd, poolname);
1093 static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname)
1098 OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP);
1099 OBD_COUNTER_INCREMENT(obd, pool_add);
1101 rc = OBP(obd, pool_add)(obd, poolname, ostname);
1105 static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname)
1110 OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP);
1111 OBD_COUNTER_INCREMENT(obd, pool_rem);
1113 rc = OBP(obd, pool_rem)(obd, poolname, ostname);
1117 static inline void obd_getref(struct obd_device *obd)
1120 if (OBT(obd) && OBP(obd, getref)) {
1121 OBD_COUNTER_INCREMENT(obd, getref);
1122 OBP(obd, getref)(obd);
1127 static inline void obd_putref(struct obd_device *obd)
1130 if (OBT(obd) && OBP(obd, putref)) {
1131 OBD_COUNTER_INCREMENT(obd, putref);
1132 OBP(obd, putref)(obd);
1137 static inline int obd_init_export(struct obd_export *exp)
1142 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1143 OBP((exp)->exp_obd, init_export))
1144 rc = OBP(exp->exp_obd, init_export)(exp);
1148 static inline int obd_destroy_export(struct obd_export *exp)
1151 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1152 OBP((exp)->exp_obd, destroy_export))
1153 OBP(exp->exp_obd, destroy_export)(exp);
1157 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1158 * If the cache is older than @max_age we will get a new value from the
1159 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1160 static inline int obd_statfs_async(struct obd_export *exp,
1161 struct obd_info *oinfo,
1163 struct ptlrpc_request_set *rqset)
1166 struct obd_device *obd;
1169 if (exp == NULL || exp->exp_obd == NULL)
1173 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1174 OBD_COUNTER_INCREMENT(obd, statfs);
1176 CDEBUG(D_SUPER, "%s: osfs %p age "LPU64", max_age "LPU64"\n",
1177 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
1178 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1179 rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset);
1181 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1182 " objects "LPU64"/"LPU64"\n",
1183 obd->obd_name, &obd->obd_osfs,
1184 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1185 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1186 spin_lock(&obd->obd_osfs_lock);
1187 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
1188 spin_unlock(&obd->obd_osfs_lock);
1189 oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
1190 if (oinfo->oi_cb_up)
1191 oinfo->oi_cb_up(oinfo, 0);
1196 static inline int obd_statfs_rqset(struct obd_export *exp,
1197 struct obd_statfs *osfs, __u64 max_age,
1200 struct ptlrpc_request_set *set = NULL;
1201 struct obd_info oinfo = { { { 0 } } };
1205 set = ptlrpc_prep_set();
1209 oinfo.oi_osfs = osfs;
1210 oinfo.oi_flags = flags;
1211 rc = obd_statfs_async(exp, &oinfo, max_age, set);
1213 rc = ptlrpc_set_wait(set);
1214 ptlrpc_set_destroy(set);
1218 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1219 * If the cache is older than @max_age we will get a new value from the
1220 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1221 static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
1222 struct obd_statfs *osfs, __u64 max_age,
1226 struct obd_device *obd = exp->exp_obd;
1232 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1233 OBD_COUNTER_INCREMENT(obd, statfs);
1235 CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n",
1236 obd->obd_osfs_age, max_age);
1237 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1238 rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
1240 spin_lock(&obd->obd_osfs_lock);
1241 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1242 obd->obd_osfs_age = cfs_time_current_64();
1243 spin_unlock(&obd->obd_osfs_lock);
1246 CDEBUG(D_SUPER, "%s: use %p cache blocks "LPU64"/"LPU64
1247 " objects "LPU64"/"LPU64"\n",
1248 obd->obd_name, &obd->obd_osfs,
1249 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1250 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1251 spin_lock(&obd->obd_osfs_lock);
1252 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1253 spin_unlock(&obd->obd_osfs_lock);
1258 static inline int obd_preprw(const struct lu_env *env, int cmd,
1259 struct obd_export *exp, struct obdo *oa,
1260 int objcount, struct obd_ioobj *obj,
1261 struct niobuf_remote *remote, int *pages,
1262 struct niobuf_local *local,
1263 struct obd_trans_info *oti,
1264 struct lustre_capa *capa)
1269 EXP_CHECK_DT_OP(exp, preprw);
1270 EXP_COUNTER_INCREMENT(exp, preprw);
1272 rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote,
1273 pages, local, oti, capa);
1277 static inline int obd_commitrw(const struct lu_env *env, int cmd,
1278 struct obd_export *exp, struct obdo *oa,
1279 int objcount, struct obd_ioobj *obj,
1280 struct niobuf_remote *rnb, int pages,
1281 struct niobuf_local *local,
1282 struct obd_trans_info *oti, int rc)
1286 EXP_CHECK_DT_OP(exp, commitrw);
1287 EXP_COUNTER_INCREMENT(exp, commitrw);
1289 rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj,
1290 rnb, pages, local, oti, rc);
1294 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1295 int len, void *karg, void *uarg)
1300 EXP_CHECK_DT_OP(exp, iocontrol);
1301 EXP_COUNTER_INCREMENT(exp, iocontrol);
1303 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1307 static inline int obd_change_cbdata(struct obd_export *exp,
1308 struct lov_stripe_md *lsm,
1309 ldlm_iterator_t it, void *data)
1314 EXP_CHECK_DT_OP(exp, change_cbdata);
1315 EXP_COUNTER_INCREMENT(exp, change_cbdata);
1317 rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data);
1321 static inline int obd_find_cbdata(struct obd_export *exp,
1322 struct lov_stripe_md *lsm,
1323 ldlm_iterator_t it, void *data)
1328 EXP_CHECK_DT_OP(exp, find_cbdata);
1329 EXP_COUNTER_INCREMENT(exp, find_cbdata);
1331 rc = OBP(exp->exp_obd, find_cbdata)(exp, lsm, it, data);
1335 static inline int obd_pin(struct obd_export *exp, const struct lu_fid *fid,
1336 struct obd_capa *oc, struct obd_client_handle *handle,
1342 EXP_CHECK_DT_OP(exp, pin);
1343 EXP_COUNTER_INCREMENT(exp, pin);
1345 rc = OBP(exp->exp_obd, pin)(exp, fid, oc, handle, flag);
1349 static inline int obd_unpin(struct obd_export *exp,
1350 struct obd_client_handle *handle, int flag)
1355 EXP_CHECK_DT_OP(exp, unpin);
1356 EXP_COUNTER_INCREMENT(exp, unpin);
1358 rc = OBP(exp->exp_obd, unpin)(exp, handle, flag);
1363 static inline void obd_import_event(struct obd_device *obd,
1364 struct obd_import *imp,
1365 enum obd_import_event event)
1369 CERROR("NULL device\n");
1373 if (obd->obd_set_up && OBP(obd, import_event)) {
1374 OBD_COUNTER_INCREMENT(obd, import_event);
1375 OBP(obd, import_event)(obd, imp, event);
1380 static inline int obd_llog_connect(struct obd_export *exp,
1381 struct llogd_conn_body *body)
1386 OBD_CHECK_DT_OP(exp->exp_obd, llog_connect, 0);
1387 EXP_COUNTER_INCREMENT(exp, llog_connect);
1389 rc = OBP(exp->exp_obd, llog_connect)(exp, body);
1394 static inline int obd_notify(struct obd_device *obd,
1395 struct obd_device *watched,
1396 enum obd_notify_event ev,
1403 /* the check for async_recov is a complete hack - I'm hereby
1404 overloading the meaning to also mean "this was called from
1405 mds_postsetup". I know that my mds is able to handle notifies
1406 by this point, and it needs to get them to execute mds_postrecov. */
1407 if (!obd->obd_set_up && !obd->obd_async_recov) {
1408 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1412 if (!OBP(obd, notify)) {
1413 CDEBUG(D_HA, "obd %s has no notify handler\n", obd->obd_name);
1417 OBD_COUNTER_INCREMENT(obd, notify);
1418 rc = OBP(obd, notify)(obd, watched, ev, data);
1422 static inline int obd_notify_observer(struct obd_device *observer,
1423 struct obd_device *observed,
1424 enum obd_notify_event ev,
1430 struct obd_notify_upcall *onu;
1432 if (observer->obd_observer)
1433 rc1 = obd_notify(observer->obd_observer, observed, ev, data);
1437 * Also, call non-obd listener, if any
1439 onu = &observer->obd_upcall;
1440 if (onu->onu_upcall != NULL)
1441 rc2 = onu->onu_upcall(observer, observed, ev,
1442 onu->onu_owner, NULL);
1446 return rc1 ? rc1 : rc2;
1449 static inline int obd_quotacheck(struct obd_export *exp,
1450 struct obd_quotactl *oqctl)
1455 EXP_CHECK_DT_OP(exp, quotacheck);
1456 EXP_COUNTER_INCREMENT(exp, quotacheck);
1458 rc = OBP(exp->exp_obd, quotacheck)(exp->exp_obd, exp, oqctl);
1462 static inline int obd_quotactl(struct obd_export *exp,
1463 struct obd_quotactl *oqctl)
1468 EXP_CHECK_DT_OP(exp, quotactl);
1469 EXP_COUNTER_INCREMENT(exp, quotactl);
1471 rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl);
1475 static inline int obd_health_check(const struct lu_env *env,
1476 struct obd_device *obd)
1478 /* returns: 0 on healthy
1479 * >0 on unhealthy + reason code/flag
1480 * however the only suppored reason == 1 right now
1481 * We'll need to define some better reasons
1482 * or flags in the future.
1488 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1489 if (obd == NULL || !OBT(obd)) {
1490 CERROR("cleaned up obd\n");
1491 RETURN(-EOPNOTSUPP);
1493 if (!obd->obd_set_up || obd->obd_stopping)
1495 if (!OBP(obd, health_check))
1498 rc = OBP(obd, health_check)(env, obd);
1502 static inline int obd_register_observer(struct obd_device *obd,
1503 struct obd_device *observer)
1507 down_write(&obd->obd_observer_link_sem);
1508 if (obd->obd_observer && observer) {
1509 up_write(&obd->obd_observer_link_sem);
1512 obd->obd_observer = observer;
1513 up_write(&obd->obd_observer_link_sem);
1517 static inline int obd_pin_observer(struct obd_device *obd,
1518 struct obd_device **observer)
1521 down_read(&obd->obd_observer_link_sem);
1522 if (!obd->obd_observer) {
1524 up_read(&obd->obd_observer_link_sem);
1527 *observer = obd->obd_observer;
1531 static inline int obd_unpin_observer(struct obd_device *obd)
1534 up_read(&obd->obd_observer_link_sem);
1539 static inline int obd_register_page_removal_cb(struct obd_export *exp,
1540 obd_page_removal_cb_t cb,
1541 obd_pin_extent_cb pin_cb)
1546 OBD_CHECK_DT_OP(exp->exp_obd, register_page_removal_cb, 0);
1547 OBD_COUNTER_INCREMENT(exp->exp_obd, register_page_removal_cb);
1549 rc = OBP(exp->exp_obd, register_page_removal_cb)(exp, cb, pin_cb);
1553 static inline int obd_unregister_page_removal_cb(struct obd_export *exp,
1554 obd_page_removal_cb_t cb)
1559 OBD_CHECK_DT_OP(exp->exp_obd, unregister_page_removal_cb, 0);
1560 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_page_removal_cb);
1562 rc = OBP(exp->exp_obd, unregister_page_removal_cb)(exp, cb);
1566 static inline int obd_register_lock_cancel_cb(struct obd_export *exp,
1567 obd_lock_cancel_cb cb)
1572 OBD_CHECK_DT_OP(exp->exp_obd, register_lock_cancel_cb, 0);
1573 OBD_COUNTER_INCREMENT(exp->exp_obd, register_lock_cancel_cb);
1575 rc = OBP(exp->exp_obd, register_lock_cancel_cb)(exp, cb);
1579 static inline int obd_unregister_lock_cancel_cb(struct obd_export *exp,
1580 obd_lock_cancel_cb cb)
1585 OBD_CHECK_DT_OP(exp->exp_obd, unregister_lock_cancel_cb, 0);
1586 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_lock_cancel_cb);
1588 rc = OBP(exp->exp_obd, unregister_lock_cancel_cb)(exp, cb);
1593 /* metadata helpers */
1594 static inline int md_getstatus(struct obd_export *exp,
1595 struct lu_fid *fid, struct obd_capa **pc)
1600 EXP_CHECK_MD_OP(exp, getstatus);
1601 EXP_MD_COUNTER_INCREMENT(exp, getstatus);
1602 rc = MDP(exp->exp_obd, getstatus)(exp, fid, pc);
1606 static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data,
1607 struct ptlrpc_request **request)
1611 EXP_CHECK_MD_OP(exp, getattr);
1612 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1613 rc = MDP(exp->exp_obd, getattr)(exp, op_data, request);
1617 static inline int md_null_inode(struct obd_export *exp,
1618 const struct lu_fid *fid)
1622 EXP_CHECK_MD_OP(exp, null_inode);
1623 EXP_MD_COUNTER_INCREMENT(exp, null_inode);
1624 rc = MDP(exp->exp_obd, null_inode)(exp, fid);
1628 static inline int md_find_cbdata(struct obd_export *exp,
1629 const struct lu_fid *fid,
1630 ldlm_iterator_t it, void *data)
1634 EXP_CHECK_MD_OP(exp, find_cbdata);
1635 EXP_MD_COUNTER_INCREMENT(exp, find_cbdata);
1636 rc = MDP(exp->exp_obd, find_cbdata)(exp, fid, it, data);
1640 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1641 struct md_open_data *mod,
1642 struct ptlrpc_request **request)
1646 EXP_CHECK_MD_OP(exp, close);
1647 EXP_MD_COUNTER_INCREMENT(exp, close);
1648 rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
1652 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1653 const void *data, int datalen, int mode, __u32 uid,
1654 __u32 gid, cfs_cap_t cap_effective, __u64 rdev,
1655 struct ptlrpc_request **request)
1659 EXP_CHECK_MD_OP(exp, create);
1660 EXP_MD_COUNTER_INCREMENT(exp, create);
1661 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1662 uid, gid, cap_effective, rdev, request);
1666 static inline int md_done_writing(struct obd_export *exp,
1667 struct md_op_data *op_data,
1668 struct md_open_data *mod)
1672 EXP_CHECK_MD_OP(exp, done_writing);
1673 EXP_MD_COUNTER_INCREMENT(exp, done_writing);
1674 rc = MDP(exp->exp_obd, done_writing)(exp, op_data, mod);
1678 static inline int md_enqueue(struct obd_export *exp,
1679 struct ldlm_enqueue_info *einfo,
1680 struct lookup_intent *it,
1681 struct md_op_data *op_data,
1682 struct lustre_handle *lockh,
1683 void *lmm, int lmmsize,
1684 struct ptlrpc_request **req,
1685 __u64 extra_lock_flags)
1689 EXP_CHECK_MD_OP(exp, enqueue);
1690 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1691 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, it, op_data, lockh,
1692 lmm, lmmsize, req, extra_lock_flags);
1696 static inline int md_getattr_name(struct obd_export *exp,
1697 struct md_op_data *op_data,
1698 struct ptlrpc_request **request)
1702 EXP_CHECK_MD_OP(exp, getattr_name);
1703 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1704 rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request);
1708 static inline int md_intent_lock(struct obd_export *exp,
1709 struct md_op_data *op_data, void *lmm,
1710 int lmmsize, struct lookup_intent *it,
1711 int lookup_flags, struct ptlrpc_request **reqp,
1712 ldlm_blocking_callback cb_blocking,
1713 __u64 extra_lock_flags)
1717 EXP_CHECK_MD_OP(exp, intent_lock);
1718 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1719 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, lmm, lmmsize,
1720 it, lookup_flags, reqp, cb_blocking,
1725 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1726 struct ptlrpc_request **request)
1730 EXP_CHECK_MD_OP(exp, link);
1731 EXP_MD_COUNTER_INCREMENT(exp, link);
1732 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1736 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1737 const char *old, int oldlen, const char *new,
1738 int newlen, struct ptlrpc_request **request)
1742 EXP_CHECK_MD_OP(exp, rename);
1743 EXP_MD_COUNTER_INCREMENT(exp, rename);
1744 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
1749 static inline int md_is_subdir(struct obd_export *exp,
1750 const struct lu_fid *pfid,
1751 const struct lu_fid *cfid,
1752 struct ptlrpc_request **request)
1756 EXP_CHECK_MD_OP(exp, is_subdir);
1757 EXP_MD_COUNTER_INCREMENT(exp, is_subdir);
1758 rc = MDP(exp->exp_obd, is_subdir)(exp, pfid, cfid, request);
1762 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
1763 void *ea, int ealen, void *ea2, int ea2len,
1764 struct ptlrpc_request **request,
1765 struct md_open_data **mod)
1769 EXP_CHECK_MD_OP(exp, setattr);
1770 EXP_MD_COUNTER_INCREMENT(exp, setattr);
1771 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen,
1772 ea2, ea2len, request, mod);
1776 static inline int md_fsync(struct obd_export *exp, const struct lu_fid *fid,
1777 struct obd_capa *oc, struct ptlrpc_request **request)
1781 EXP_CHECK_MD_OP(exp, fsync);
1782 EXP_MD_COUNTER_INCREMENT(exp, fsync);
1783 rc = MDP(exp->exp_obd, fsync)(exp, fid, oc, request);
1787 static inline int md_readpage(struct obd_export *exp, struct md_op_data *opdata,
1788 struct page **pages,
1789 struct ptlrpc_request **request)
1793 EXP_CHECK_MD_OP(exp, readpage);
1794 EXP_MD_COUNTER_INCREMENT(exp, readpage);
1795 rc = MDP(exp->exp_obd, readpage)(exp, opdata, pages, request);
1799 static inline int md_read_entry(struct obd_export *exp,
1800 struct md_op_data *op_data,
1801 struct md_callback *cb_op,
1802 struct lu_dirent **ld,
1803 struct page **ppage)
1807 EXP_CHECK_MD_OP(exp, read_entry);
1808 EXP_MD_COUNTER_INCREMENT(exp, read_entry);
1809 rc = MDP(exp->exp_obd, read_entry)(exp, op_data, cb_op, ld, ppage);
1813 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
1814 struct ptlrpc_request **request)
1818 EXP_CHECK_MD_OP(exp, unlink);
1819 EXP_MD_COUNTER_INCREMENT(exp, unlink);
1820 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
1824 static inline int md_get_lustre_md(struct obd_export *exp,
1825 struct ptlrpc_request *req,
1826 struct obd_export *dt_exp,
1827 struct obd_export *md_exp,
1828 struct lustre_md *md)
1831 EXP_CHECK_MD_OP(exp, get_lustre_md);
1832 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
1833 RETURN(MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md));
1836 static inline int md_free_lustre_md(struct obd_export *exp,
1837 struct lustre_md *md)
1840 EXP_CHECK_MD_OP(exp, free_lustre_md);
1841 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
1842 RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md));
1845 static inline int md_update_lsm_md(struct obd_export *exp,
1846 struct lmv_stripe_md *lsm,
1847 struct mdt_body *body,
1848 ldlm_blocking_callback cb)
1851 EXP_CHECK_MD_OP(exp, update_lsm_md);
1852 EXP_MD_COUNTER_INCREMENT(exp, update_lsm_md);
1853 RETURN(MDP(exp->exp_obd, update_lsm_md)(exp, lsm, body, cb));
1856 static inline int md_merge_attr(struct obd_export *exp,
1857 const struct lmv_stripe_md *lsm,
1858 struct cl_attr *attr)
1861 EXP_CHECK_MD_OP(exp, merge_attr);
1862 EXP_MD_COUNTER_INCREMENT(exp, merge_attr);
1863 RETURN(MDP(exp->exp_obd, merge_attr)(exp, lsm, attr));
1866 static inline int md_setxattr(struct obd_export *exp,
1867 const struct lu_fid *fid, struct obd_capa *oc,
1868 obd_valid valid, const char *name,
1869 const char *input, int input_size,
1870 int output_size, int flags, __u32 suppgid,
1871 struct ptlrpc_request **request)
1874 EXP_CHECK_MD_OP(exp, setxattr);
1875 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
1876 RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, oc, valid, name, input,
1877 input_size, output_size, flags,
1881 static inline int md_getxattr(struct obd_export *exp,
1882 const struct lu_fid *fid, struct obd_capa *oc,
1883 obd_valid valid, const char *name,
1884 const char *input, int input_size,
1885 int output_size, int flags,
1886 struct ptlrpc_request **request)
1889 EXP_CHECK_MD_OP(exp, getxattr);
1890 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
1891 RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, oc, valid, name, input,
1892 input_size, output_size, flags,
1896 static inline int md_set_open_replay_data(struct obd_export *exp,
1897 struct obd_client_handle *och,
1898 struct lookup_intent *it)
1901 EXP_CHECK_MD_OP(exp, set_open_replay_data);
1902 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
1903 RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, it));
1906 static inline int md_clear_open_replay_data(struct obd_export *exp,
1907 struct obd_client_handle *och)
1910 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
1911 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
1912 RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och));
1915 static inline int md_set_lock_data(struct obd_export *exp,
1916 __u64 *lockh, void *data, __u64 *bits)
1919 EXP_CHECK_MD_OP(exp, set_lock_data);
1920 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
1921 RETURN(MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits));
1924 static inline int md_cancel_unused(struct obd_export *exp,
1925 const struct lu_fid *fid,
1926 ldlm_policy_data_t *policy,
1928 ldlm_cancel_flags_t flags,
1934 EXP_CHECK_MD_OP(exp, cancel_unused);
1935 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
1937 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
1942 static inline ldlm_mode_t md_lock_match(struct obd_export *exp, __u64 flags,
1943 const struct lu_fid *fid,
1945 ldlm_policy_data_t *policy,
1947 struct lustre_handle *lockh)
1950 EXP_CHECK_MD_OP(exp, lock_match);
1951 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
1952 RETURN(MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
1953 policy, mode, lockh));
1956 static inline int md_init_ea_size(struct obd_export *exp, int easize,
1957 int def_asize, int cookiesize)
1960 EXP_CHECK_MD_OP(exp, init_ea_size);
1961 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
1962 RETURN(MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
1966 static inline int md_get_remote_perm(struct obd_export *exp,
1967 const struct lu_fid *fid,
1968 struct obd_capa *oc, __u32 suppgid,
1969 struct ptlrpc_request **request)
1972 EXP_CHECK_MD_OP(exp, get_remote_perm);
1973 EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm);
1974 RETURN(MDP(exp->exp_obd, get_remote_perm)(exp, fid, oc, suppgid,
1978 static inline int md_renew_capa(struct obd_export *exp, struct obd_capa *ocapa,
1983 EXP_CHECK_MD_OP(exp, renew_capa);
1984 EXP_MD_COUNTER_INCREMENT(exp, renew_capa);
1985 rc = MDP(exp->exp_obd, renew_capa)(exp, ocapa, cb);
1989 static inline int md_unpack_capa(struct obd_export *exp,
1990 struct ptlrpc_request *req,
1991 const struct req_msg_field *field,
1992 struct obd_capa **oc)
1996 EXP_CHECK_MD_OP(exp, unpack_capa);
1997 EXP_MD_COUNTER_INCREMENT(exp, unpack_capa);
1998 rc = MDP(exp->exp_obd, unpack_capa)(exp, req, field, oc);
2002 static inline int md_intent_getattr_async(struct obd_export *exp,
2003 struct md_enqueue_info *minfo,
2004 struct ldlm_enqueue_info *einfo)
2008 EXP_CHECK_MD_OP(exp, intent_getattr_async);
2009 EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
2010 rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo, einfo);
2014 static inline int md_revalidate_lock(struct obd_export *exp,
2015 struct lookup_intent *it,
2016 struct lu_fid *fid, __u64 *bits)
2020 EXP_CHECK_MD_OP(exp, revalidate_lock);
2021 EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
2022 rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits);
2027 /* OBD Metadata Support */
2029 extern int obd_init_caches(void);
2030 extern void obd_cleanup_caches(void);
2032 /* support routines */
2033 extern struct kmem_cache *obdo_cachep;
2035 #define OBDO_ALLOC(ptr) \
2037 OBD_SLAB_ALLOC_PTR_GFP((ptr), obdo_cachep, GFP_NOFS); \
2040 #define OBDO_FREE(ptr) \
2042 OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
2046 static inline void obdo2fid(struct obdo *oa, struct lu_fid *fid)
2048 /* something here */
2051 static inline void fid2obdo(struct lu_fid *fid, struct obdo *oa)
2053 /* something here */
2056 typedef int (*register_lwp_cb)(void *data);
2058 struct lwp_register_item {
2059 struct obd_export **lri_exp;
2060 register_lwp_cb lri_cb_func;
2062 cfs_list_t lri_list;
2063 char lri_name[MTI_NAME_MAXLEN];
2066 /* I'm as embarrassed about this as you are.
2068 * <shaver> // XXX do not look into _superhack with remaining eye
2069 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
2070 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
2073 #ifdef HAVE_SERVER_SUPPORT
2074 int lustre_register_lwp_item(const char *lwpname, struct obd_export **exp,
2075 register_lwp_cb cb_func, void *cb_data);
2076 void lustre_deregister_lwp_item(struct obd_export **exp);
2077 struct obd_export *lustre_find_lwp_by_index(const char *dev, __u32 idx);
2078 int tgt_name2lwp_name(const char *tgt_name, char *lwp_name, int len, __u32 idx);
2079 #endif /* HAVE_SERVER_SUPPORT */
2082 extern void obd_sysctl_init (void);
2083 extern void obd_sysctl_clean (void);
2086 typedef __u8 class_uuid_t[16];
2087 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
2090 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
2091 int class_add_uuid(const char *uuid, __u64 nid);
2092 int class_del_uuid (const char *uuid);
2093 int class_check_uuid(struct obd_uuid *uuid, __u64 nid);
2094 void class_init_uuidlist(void);
2095 void class_exit_uuidlist(void);
2098 #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
2101 int server_name2index(const char *svname, __u32 *idx, const char **endptr);
2103 # define server_name2index(name, idx, ptr) do {} while (0)
2106 #endif /* __LINUX_OBD_CLASS_H */