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. */
74 /* OBD Device Declarations */
75 extern struct obd_device *obd_devs[MAX_OBD_DEVICES];
76 extern struct list_head obd_types;
77 extern spinlock_t obd_types_lock;
78 extern rwlock_t obd_dev_lock;
80 /* OBD Operations Declarations */
81 extern struct obd_device *class_conn2obd(struct lustre_handle *);
82 extern struct obd_device *class_exp2obd(struct obd_export *);
83 extern int class_handle_ioctl(unsigned int cmd, unsigned long arg);
84 extern int lustre_get_jobid(char *jobid);
86 struct lu_device_type;
89 struct obd_export *class_conn2export(struct lustre_handle *);
90 int class_register_type(struct obd_ops *, struct md_ops *, bool enable_proc,
91 struct lprocfs_seq_vars *module_vars,
92 #ifndef HAVE_ONLY_PROCFS_SEQ
93 struct lprocfs_vars *,
95 const char *nm, 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);
132 int obd_get_request_slot(struct client_obd *cli);
133 void obd_put_request_slot(struct client_obd *cli);
134 __u32 obd_get_max_rpcs_in_flight(struct client_obd *cli);
135 int obd_set_max_rpcs_in_flight(struct client_obd *cli, __u32 max);
139 typedef int (*llog_cb_t)(const struct lu_env *, struct llog_handle *,
140 struct llog_rec_hdr *, void *);
142 struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg,
143 const char *new_name);
144 int class_process_config(struct lustre_cfg *lcfg);
145 #ifndef HAVE_ONLY_PROCFS_SEQ
146 int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
147 struct lustre_cfg *lcfg, void *data);
149 int class_process_proc_seq_param(char *prefix, struct lprocfs_seq_vars *lvars,
150 struct lustre_cfg *lcfg, void *data);
151 int class_attach(struct lustre_cfg *lcfg);
152 int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
153 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg);
154 int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg);
155 struct obd_device *class_incref(struct obd_device *obd,
156 const char *scope, const void *source);
157 void class_decref(struct obd_device *obd,
158 const char *scope, const void *source);
159 void dump_exports(struct obd_device *obd, int locks);
160 int class_config_llog_handler(const struct lu_env *env,
161 struct llog_handle *handle,
162 struct llog_rec_hdr *rec, void *data);
163 int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg);
164 int class_add_uuid(const char *uuid, __u64 nid);
166 #define CFG_F_START 0x01 /* Set when we start updating from a log */
167 #define CFG_F_MARKER 0x02 /* We are within a maker */
168 #define CFG_F_SKIP 0x04 /* We should ignore this cfg command */
169 #define CFG_F_COMPAT146 0x08 /* Allow old-style logs */
170 #define CFG_F_EXCLUDE 0x10 /* OST exclusion list */
172 /* Passed as data param to class_config_parse_llog */
173 struct config_llog_instance {
176 struct super_block *cfg_sb;
177 struct obd_uuid cfg_uuid;
178 llog_cb_t cfg_callback;
179 int cfg_last_idx; /* for partial llog processing */
183 int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
184 char *name, struct config_llog_instance *cfg);
185 int class_config_dump_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
186 char *name, struct config_llog_instance *cfg);
190 CONFIG_T_SPTLRPC = 1,
191 CONFIG_T_RECOVER = 2,
196 #define PARAMS_FILENAME "params"
197 #define LCTL_UPCALL "lctl"
199 /* list of active configuration logs */
200 struct config_llog_data {
201 struct ldlm_res_id cld_resid;
202 struct config_llog_instance cld_cfg;
203 struct list_head cld_list_chain;
204 atomic_t cld_refcount;
205 struct config_llog_data *cld_sptlrpc;/* depended sptlrpc log */
206 struct config_llog_data *cld_params; /* common parameters log */
207 struct config_llog_data *cld_recover;/* imperative recover log */
208 struct obd_export *cld_mgcexp;
209 struct mutex cld_lock;
211 unsigned int cld_stopping:1, /* we were told to stop
213 cld_lostlock:1; /* lock not requeued */
217 struct lustre_profile {
218 struct list_head lp_list;
224 struct lustre_profile *class_get_profile(const char * prof);
225 void class_del_profile(const char *prof);
226 void class_del_profiles(void);
228 #if LUSTRE_TRACKS_LOCK_EXP_REFS
230 void __class_export_add_lock_ref(struct obd_export *, struct ldlm_lock *);
231 void __class_export_del_lock_ref(struct obd_export *, struct ldlm_lock *);
232 extern void (*class_export_dump_hook)(struct obd_export *);
236 #define __class_export_add_lock_ref(exp, lock) do {} while(0)
237 #define __class_export_del_lock_ref(exp, lock) do {} while(0)
241 #define class_export_rpc_inc(exp) \
243 atomic_inc(&(exp)->exp_rpc_count); \
244 CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \
245 (exp), atomic_read(&(exp)->exp_rpc_count)); \
248 #define class_export_rpc_dec(exp) \
250 LASSERT_ATOMIC_POS(&exp->exp_rpc_count); \
251 atomic_dec(&(exp)->exp_rpc_count); \
252 CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \
253 (exp), atomic_read(&(exp)->exp_rpc_count)); \
256 #define class_export_lock_get(exp, lock) \
258 atomic_inc(&(exp)->exp_locks_count); \
259 __class_export_add_lock_ref(exp, lock); \
260 CDEBUG(D_INFO, "lock GETting export %p : new locks_count %d\n", \
261 (exp), atomic_read(&(exp)->exp_locks_count)); \
262 class_export_get(exp); \
265 #define class_export_lock_put(exp, lock) \
267 LASSERT_ATOMIC_POS(&exp->exp_locks_count); \
268 atomic_dec(&(exp)->exp_locks_count); \
269 __class_export_del_lock_ref(exp, lock); \
270 CDEBUG(D_INFO, "lock PUTting export %p : new locks_count %d\n", \
271 (exp), atomic_read(&(exp)->exp_locks_count)); \
272 class_export_put(exp); \
275 #define class_export_cb_get(exp) \
277 atomic_inc(&(exp)->exp_cb_count); \
278 CDEBUG(D_INFO, "callback GETting export %p : new cb_count %d\n",\
279 (exp), atomic_read(&(exp)->exp_cb_count)); \
280 class_export_get(exp); \
283 #define class_export_cb_put(exp) \
285 LASSERT_ATOMIC_POS(&exp->exp_cb_count); \
286 atomic_dec(&(exp)->exp_cb_count); \
287 CDEBUG(D_INFO, "callback PUTting export %p : new cb_count %d\n",\
288 (exp), atomic_read(&(exp)->exp_cb_count)); \
289 class_export_put(exp); \
293 struct obd_export *class_export_get(struct obd_export *exp);
294 void class_export_put(struct obd_export *exp);
295 struct obd_export *class_new_export(struct obd_device *obddev,
296 struct obd_uuid *cluuid);
297 void class_unlink_export(struct obd_export *exp);
299 struct obd_import *class_import_get(struct obd_import *);
300 void class_import_put(struct obd_import *);
301 struct obd_import *class_new_import(struct obd_device *obd);
302 void class_destroy_import(struct obd_import *exp);
304 struct obd_type *class_search_type(const char *name);
305 struct obd_type *class_get_type(const char *name);
306 void class_put_type(struct obd_type *type);
307 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
308 struct obd_uuid *cluuid);
309 int class_disconnect(struct obd_export *exp);
310 void class_fail_export(struct obd_export *exp);
311 int class_connected_export(struct obd_export *exp);
312 void class_disconnect_exports(struct obd_device *obddev);
313 int class_manual_cleanup(struct obd_device *obd);
314 void class_disconnect_stale_exports(struct obd_device *,
315 int (*test_export)(struct obd_export *));
316 static inline enum obd_option exp_flags_from_obd(struct obd_device *obd)
318 return ((obd->obd_fail ? OBD_OPT_FAILOVER : 0) |
319 (obd->obd_force ? OBD_OPT_FORCE : 0) |
320 (obd->obd_abort_recovery ? OBD_OPT_ABORT_RECOV : 0) |
324 #ifdef HAVE_SERVER_SUPPORT
325 static inline struct lu_target *class_exp2tgt(struct obd_export *exp)
327 LASSERT(exp->exp_obd);
328 return exp->exp_obd->u.obt.obt_lut;
331 static inline struct lr_server_data *class_server_data(struct obd_device *obd)
333 LASSERT(obd->u.obt.obt_lut);
334 return &obd->u.obt.obt_lut->lut_lsd;
338 void obdo_cpy_md(struct obdo *dst, const struct obdo *src, obd_flag valid);
339 void obdo_to_ioobj(const struct obdo *oa, struct obd_ioobj *ioobj);
340 void md_from_obdo(struct md_op_data *op_data, const struct obdo *oa,
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(const struct lu_env *env, struct obd_export *exp,
790 struct obdo *obdo, struct lov_stripe_md **ea,
791 struct obd_trans_info *oti)
796 EXP_CHECK_DT_OP(exp, create);
797 EXP_COUNTER_INCREMENT(exp, create);
799 rc = OBP(exp->exp_obd, create)(env, exp, obdo, ea, oti);
803 static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp,
804 struct obdo *obdo, struct lov_stripe_md *ea,
805 struct obd_trans_info *oti,
806 struct obd_export *md_exp, void *capa)
811 EXP_CHECK_DT_OP(exp, destroy);
812 EXP_COUNTER_INCREMENT(exp, destroy);
814 rc = OBP(exp->exp_obd, destroy)(env, exp, obdo, ea, oti, md_exp, capa);
818 static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp,
819 struct obd_info *oinfo)
824 EXP_CHECK_DT_OP(exp, getattr);
825 EXP_COUNTER_INCREMENT(exp, getattr);
827 rc = OBP(exp->exp_obd, getattr)(env, exp, oinfo);
831 static inline int obd_getattr_async(struct obd_export *exp,
832 struct obd_info *oinfo,
833 struct ptlrpc_request_set *set)
838 EXP_CHECK_DT_OP(exp, getattr_async);
839 EXP_COUNTER_INCREMENT(exp, getattr_async);
841 rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set);
845 static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp,
846 struct obd_info *oinfo,
847 struct obd_trans_info *oti)
852 EXP_CHECK_DT_OP(exp, setattr);
853 EXP_COUNTER_INCREMENT(exp, setattr);
855 rc = OBP(exp->exp_obd, setattr)(env, exp, oinfo, oti);
859 /* This performs all the requests set init/wait/destroy actions. */
860 static inline int obd_setattr_rqset(struct obd_export *exp,
861 struct obd_info *oinfo,
862 struct obd_trans_info *oti)
864 struct ptlrpc_request_set *set = NULL;
868 EXP_CHECK_DT_OP(exp, setattr_async);
869 EXP_COUNTER_INCREMENT(exp, setattr_async);
871 set = ptlrpc_prep_set();
875 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
877 rc = ptlrpc_set_wait(set);
878 ptlrpc_set_destroy(set);
882 /* This adds all the requests into @set if @set != NULL, otherwise
883 all requests are sent asynchronously without waiting for response. */
884 static inline int obd_setattr_async(struct obd_export *exp,
885 struct obd_info *oinfo,
886 struct obd_trans_info *oti,
887 struct ptlrpc_request_set *set)
892 EXP_CHECK_DT_OP(exp, setattr_async);
893 EXP_COUNTER_INCREMENT(exp, setattr_async);
895 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
899 static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
902 struct obd_device *obd = imp->imp_obd;
906 OBD_CHECK_DEV_ACTIVE(obd);
907 OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
908 OBD_COUNTER_INCREMENT(obd, add_conn);
910 rc = OBP(obd, add_conn)(imp, uuid, priority);
914 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
916 struct obd_device *obd = imp->imp_obd;
920 OBD_CHECK_DEV_ACTIVE(obd);
921 OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
922 OBD_COUNTER_INCREMENT(obd, del_conn);
924 rc = OBP(obd, del_conn)(imp, uuid);
928 static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp)
930 struct obd_uuid *uuid;
933 OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL);
934 EXP_COUNTER_INCREMENT(exp, get_uuid);
936 uuid = OBP(exp->exp_obd, get_uuid)(exp);
940 /** Create a new /a exp on device /a obd for the uuid /a cluuid
941 * @param exp New export handle
942 * @param d Connect data, supported flags are set, flags also understood
943 * by obd are returned.
945 static inline int obd_connect(const struct lu_env *env,
946 struct obd_export **exp,struct obd_device *obd,
947 struct obd_uuid *cluuid,
948 struct obd_connect_data *data,
952 __u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
956 OBD_CHECK_DEV_ACTIVE(obd);
957 OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
958 OBD_COUNTER_INCREMENT(obd, connect);
960 rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata);
961 /* check that only subset is granted */
962 LASSERT(ergo(data != NULL, (data->ocd_connect_flags & ocf) ==
963 data->ocd_connect_flags));
967 static inline int obd_reconnect(const struct lu_env *env,
968 struct obd_export *exp,
969 struct obd_device *obd,
970 struct obd_uuid *cluuid,
971 struct obd_connect_data *d,
975 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
980 OBD_CHECK_DEV_ACTIVE(obd);
981 OBD_CHECK_DT_OP(obd, reconnect, 0);
982 OBD_COUNTER_INCREMENT(obd, reconnect);
984 rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
985 /* check that only subset is granted */
986 LASSERT(ergo(d != NULL,
987 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
991 static inline int obd_disconnect(struct obd_export *exp)
996 EXP_CHECK_DT_OP(exp, disconnect);
997 EXP_COUNTER_INCREMENT(exp, disconnect);
999 rc = OBP(exp->exp_obd, disconnect)(exp);
1003 static inline int obd_fid_init(struct obd_device *obd, struct obd_export *exp,
1004 enum lu_cli_type type)
1009 OBD_CHECK_DT_OP(obd, fid_init, 0);
1010 OBD_COUNTER_INCREMENT(obd, fid_init);
1012 rc = OBP(obd, fid_init)(obd, exp, type);
1016 static inline int obd_fid_fini(struct obd_device *obd)
1021 OBD_CHECK_DT_OP(obd, fid_fini, 0);
1022 OBD_COUNTER_INCREMENT(obd, fid_fini);
1024 rc = OBP(obd, fid_fini)(obd);
1028 static inline int obd_fid_alloc(const struct lu_env *env,
1029 struct obd_export *exp,
1031 struct md_op_data *op_data)
1036 EXP_CHECK_DT_OP(exp, fid_alloc);
1037 EXP_COUNTER_INCREMENT(exp, fid_alloc);
1039 rc = OBP(exp->exp_obd, fid_alloc)(env, exp, fid, op_data);
1043 static inline int obd_ping(const struct lu_env *env, struct obd_export *exp)
1048 OBD_CHECK_DT_OP(exp->exp_obd, ping, 0);
1049 EXP_COUNTER_INCREMENT(exp, ping);
1051 rc = OBP(exp->exp_obd, ping)(env, exp);
1055 static inline int obd_pool_new(struct obd_device *obd, char *poolname)
1060 OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP);
1061 OBD_COUNTER_INCREMENT(obd, pool_new);
1063 rc = OBP(obd, pool_new)(obd, poolname);
1067 static inline int obd_pool_del(struct obd_device *obd, char *poolname)
1072 OBD_CHECK_DT_OP(obd, pool_del, -EOPNOTSUPP);
1073 OBD_COUNTER_INCREMENT(obd, pool_del);
1075 rc = OBP(obd, pool_del)(obd, poolname);
1079 static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname)
1084 OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP);
1085 OBD_COUNTER_INCREMENT(obd, pool_add);
1087 rc = OBP(obd, pool_add)(obd, poolname, ostname);
1091 static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname)
1096 OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP);
1097 OBD_COUNTER_INCREMENT(obd, pool_rem);
1099 rc = OBP(obd, pool_rem)(obd, poolname, ostname);
1103 static inline void obd_getref(struct obd_device *obd)
1106 if (OBT(obd) && OBP(obd, getref)) {
1107 OBD_COUNTER_INCREMENT(obd, getref);
1108 OBP(obd, getref)(obd);
1113 static inline void obd_putref(struct obd_device *obd)
1116 if (OBT(obd) && OBP(obd, putref)) {
1117 OBD_COUNTER_INCREMENT(obd, putref);
1118 OBP(obd, putref)(obd);
1123 static inline int obd_init_export(struct obd_export *exp)
1128 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1129 OBP((exp)->exp_obd, init_export))
1130 rc = OBP(exp->exp_obd, init_export)(exp);
1134 static inline int obd_destroy_export(struct obd_export *exp)
1137 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1138 OBP((exp)->exp_obd, destroy_export))
1139 OBP(exp->exp_obd, destroy_export)(exp);
1143 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1144 * If the cache is older than @max_age we will get a new value from the
1145 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1146 static inline int obd_statfs_async(struct obd_export *exp,
1147 struct obd_info *oinfo,
1149 struct ptlrpc_request_set *rqset)
1152 struct obd_device *obd;
1155 if (exp == NULL || exp->exp_obd == NULL)
1159 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1160 OBD_COUNTER_INCREMENT(obd, statfs);
1162 CDEBUG(D_SUPER, "%s: osfs %p age "LPU64", max_age "LPU64"\n",
1163 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
1164 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1165 rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset);
1167 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1168 " objects "LPU64"/"LPU64"\n",
1169 obd->obd_name, &obd->obd_osfs,
1170 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1171 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1172 spin_lock(&obd->obd_osfs_lock);
1173 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
1174 spin_unlock(&obd->obd_osfs_lock);
1175 oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
1176 if (oinfo->oi_cb_up)
1177 oinfo->oi_cb_up(oinfo, 0);
1182 static inline int obd_statfs_rqset(struct obd_export *exp,
1183 struct obd_statfs *osfs, __u64 max_age,
1186 struct ptlrpc_request_set *set = NULL;
1187 struct obd_info oinfo = { { { 0 } } };
1191 set = ptlrpc_prep_set();
1195 oinfo.oi_osfs = osfs;
1196 oinfo.oi_flags = flags;
1197 rc = obd_statfs_async(exp, &oinfo, max_age, set);
1199 rc = ptlrpc_set_wait(set);
1200 ptlrpc_set_destroy(set);
1204 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1205 * If the cache is older than @max_age we will get a new value from the
1206 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1207 static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
1208 struct obd_statfs *osfs, __u64 max_age,
1212 struct obd_device *obd = exp->exp_obd;
1218 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1219 OBD_COUNTER_INCREMENT(obd, statfs);
1221 CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n",
1222 obd->obd_osfs_age, max_age);
1223 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1224 rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
1226 spin_lock(&obd->obd_osfs_lock);
1227 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1228 obd->obd_osfs_age = cfs_time_current_64();
1229 spin_unlock(&obd->obd_osfs_lock);
1232 CDEBUG(D_SUPER, "%s: use %p cache blocks "LPU64"/"LPU64
1233 " objects "LPU64"/"LPU64"\n",
1234 obd->obd_name, &obd->obd_osfs,
1235 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1236 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1237 spin_lock(&obd->obd_osfs_lock);
1238 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1239 spin_unlock(&obd->obd_osfs_lock);
1244 static inline int obd_preprw(const struct lu_env *env, int cmd,
1245 struct obd_export *exp, struct obdo *oa,
1246 int objcount, struct obd_ioobj *obj,
1247 struct niobuf_remote *remote, int *pages,
1248 struct niobuf_local *local,
1249 struct obd_trans_info *oti,
1250 struct lustre_capa *capa)
1255 EXP_CHECK_DT_OP(exp, preprw);
1256 EXP_COUNTER_INCREMENT(exp, preprw);
1258 rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote,
1259 pages, local, oti, capa);
1263 static inline int obd_commitrw(const struct lu_env *env, int cmd,
1264 struct obd_export *exp, struct obdo *oa,
1265 int objcount, struct obd_ioobj *obj,
1266 struct niobuf_remote *rnb, int pages,
1267 struct niobuf_local *local,
1268 struct obd_trans_info *oti, int rc)
1272 EXP_CHECK_DT_OP(exp, commitrw);
1273 EXP_COUNTER_INCREMENT(exp, commitrw);
1275 rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj,
1276 rnb, pages, local, oti, rc);
1280 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1281 int len, void *karg, void *uarg)
1286 EXP_CHECK_DT_OP(exp, iocontrol);
1287 EXP_COUNTER_INCREMENT(exp, iocontrol);
1289 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1293 static inline int obd_change_cbdata(struct obd_export *exp,
1294 struct lov_stripe_md *lsm,
1295 ldlm_iterator_t it, void *data)
1300 EXP_CHECK_DT_OP(exp, change_cbdata);
1301 EXP_COUNTER_INCREMENT(exp, change_cbdata);
1303 rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data);
1307 static inline int obd_find_cbdata(struct obd_export *exp,
1308 struct lov_stripe_md *lsm,
1309 ldlm_iterator_t it, void *data)
1314 EXP_CHECK_DT_OP(exp, find_cbdata);
1315 EXP_COUNTER_INCREMENT(exp, find_cbdata);
1317 rc = OBP(exp->exp_obd, find_cbdata)(exp, lsm, it, data);
1321 static inline void obd_import_event(struct obd_device *obd,
1322 struct obd_import *imp,
1323 enum obd_import_event event)
1327 CERROR("NULL device\n");
1331 if (obd->obd_set_up && OBP(obd, import_event)) {
1332 OBD_COUNTER_INCREMENT(obd, import_event);
1333 OBP(obd, import_event)(obd, imp, event);
1338 static inline int obd_notify(struct obd_device *obd,
1339 struct obd_device *watched,
1340 enum obd_notify_event ev,
1347 if (!obd->obd_set_up) {
1348 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1352 if (!OBP(obd, notify)) {
1353 CDEBUG(D_HA, "obd %s has no notify handler\n", obd->obd_name);
1357 OBD_COUNTER_INCREMENT(obd, notify);
1358 rc = OBP(obd, notify)(obd, watched, ev, data);
1362 static inline int obd_notify_observer(struct obd_device *observer,
1363 struct obd_device *observed,
1364 enum obd_notify_event ev,
1370 struct obd_notify_upcall *onu;
1372 if (observer->obd_observer)
1373 rc1 = obd_notify(observer->obd_observer, observed, ev, data);
1377 * Also, call non-obd listener, if any
1379 onu = &observer->obd_upcall;
1380 if (onu->onu_upcall != NULL)
1381 rc2 = onu->onu_upcall(observer, observed, ev,
1382 onu->onu_owner, NULL);
1386 return rc1 ? rc1 : rc2;
1389 static inline int obd_quotacheck(struct obd_export *exp,
1390 struct obd_quotactl *oqctl)
1395 EXP_CHECK_DT_OP(exp, quotacheck);
1396 EXP_COUNTER_INCREMENT(exp, quotacheck);
1398 rc = OBP(exp->exp_obd, quotacheck)(exp->exp_obd, exp, oqctl);
1402 static inline int obd_quotactl(struct obd_export *exp,
1403 struct obd_quotactl *oqctl)
1408 EXP_CHECK_DT_OP(exp, quotactl);
1409 EXP_COUNTER_INCREMENT(exp, quotactl);
1411 rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl);
1415 static inline int obd_health_check(const struct lu_env *env,
1416 struct obd_device *obd)
1418 /* returns: 0 on healthy
1419 * >0 on unhealthy + reason code/flag
1420 * however the only suppored reason == 1 right now
1421 * We'll need to define some better reasons
1422 * or flags in the future.
1428 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1429 if (obd == NULL || !OBT(obd)) {
1430 CERROR("cleaned up obd\n");
1431 RETURN(-EOPNOTSUPP);
1433 if (!obd->obd_set_up || obd->obd_stopping)
1435 if (!OBP(obd, health_check))
1438 rc = OBP(obd, health_check)(env, obd);
1442 static inline int obd_register_observer(struct obd_device *obd,
1443 struct obd_device *observer)
1447 down_write(&obd->obd_observer_link_sem);
1448 if (obd->obd_observer && observer) {
1449 up_write(&obd->obd_observer_link_sem);
1452 obd->obd_observer = observer;
1453 up_write(&obd->obd_observer_link_sem);
1457 /* metadata helpers */
1458 static inline int md_getstatus(struct obd_export *exp,
1459 struct lu_fid *fid, struct obd_capa **pc)
1464 EXP_CHECK_MD_OP(exp, getstatus);
1465 EXP_MD_COUNTER_INCREMENT(exp, getstatus);
1466 rc = MDP(exp->exp_obd, getstatus)(exp, fid, pc);
1470 static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data,
1471 struct ptlrpc_request **request)
1475 EXP_CHECK_MD_OP(exp, getattr);
1476 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1477 rc = MDP(exp->exp_obd, getattr)(exp, op_data, request);
1481 static inline int md_null_inode(struct obd_export *exp,
1482 const struct lu_fid *fid)
1486 EXP_CHECK_MD_OP(exp, null_inode);
1487 EXP_MD_COUNTER_INCREMENT(exp, null_inode);
1488 rc = MDP(exp->exp_obd, null_inode)(exp, fid);
1492 static inline int md_find_cbdata(struct obd_export *exp,
1493 const struct lu_fid *fid,
1494 ldlm_iterator_t it, void *data)
1498 EXP_CHECK_MD_OP(exp, find_cbdata);
1499 EXP_MD_COUNTER_INCREMENT(exp, find_cbdata);
1500 rc = MDP(exp->exp_obd, find_cbdata)(exp, fid, it, data);
1504 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1505 struct md_open_data *mod,
1506 struct ptlrpc_request **request)
1510 EXP_CHECK_MD_OP(exp, close);
1511 EXP_MD_COUNTER_INCREMENT(exp, close);
1512 rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
1516 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1517 const void *data, int datalen, int mode, __u32 uid,
1518 __u32 gid, cfs_cap_t cap_effective, __u64 rdev,
1519 struct ptlrpc_request **request)
1523 EXP_CHECK_MD_OP(exp, create);
1524 EXP_MD_COUNTER_INCREMENT(exp, create);
1525 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1526 uid, gid, cap_effective, rdev, request);
1530 static inline int md_done_writing(struct obd_export *exp,
1531 struct md_op_data *op_data,
1532 struct md_open_data *mod)
1536 EXP_CHECK_MD_OP(exp, done_writing);
1537 EXP_MD_COUNTER_INCREMENT(exp, done_writing);
1538 rc = MDP(exp->exp_obd, done_writing)(exp, op_data, mod);
1542 static inline int md_enqueue(struct obd_export *exp,
1543 struct ldlm_enqueue_info *einfo,
1544 const union ldlm_policy_data *policy,
1545 struct lookup_intent *it,
1546 struct md_op_data *op_data,
1547 struct lustre_handle *lockh,
1548 __u64 extra_lock_flags)
1552 EXP_CHECK_MD_OP(exp, enqueue);
1553 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1554 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, policy, it, op_data, lockh,
1559 static inline int md_getattr_name(struct obd_export *exp,
1560 struct md_op_data *op_data,
1561 struct ptlrpc_request **request)
1565 EXP_CHECK_MD_OP(exp, getattr_name);
1566 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1567 rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request);
1571 static inline int md_intent_lock(struct obd_export *exp,
1572 struct md_op_data *op_data,
1573 struct lookup_intent *it,
1574 struct ptlrpc_request **reqp,
1575 ldlm_blocking_callback cb_blocking,
1576 __u64 extra_lock_flags)
1580 EXP_CHECK_MD_OP(exp, intent_lock);
1581 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1582 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, it, reqp, cb_blocking,
1587 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1588 struct ptlrpc_request **request)
1592 EXP_CHECK_MD_OP(exp, link);
1593 EXP_MD_COUNTER_INCREMENT(exp, link);
1594 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1598 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1599 const char *old, int oldlen, const char *new,
1600 int newlen, struct ptlrpc_request **request)
1604 EXP_CHECK_MD_OP(exp, rename);
1605 EXP_MD_COUNTER_INCREMENT(exp, rename);
1606 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
1611 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
1612 void *ea, int ealen, void *ea2, int ea2len,
1613 struct ptlrpc_request **request,
1614 struct md_open_data **mod)
1618 EXP_CHECK_MD_OP(exp, setattr);
1619 EXP_MD_COUNTER_INCREMENT(exp, setattr);
1620 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen,
1621 ea2, ea2len, request, mod);
1625 static inline int md_fsync(struct obd_export *exp, const struct lu_fid *fid,
1626 struct obd_capa *oc, struct ptlrpc_request **request)
1630 EXP_CHECK_MD_OP(exp, fsync);
1631 EXP_MD_COUNTER_INCREMENT(exp, fsync);
1632 rc = MDP(exp->exp_obd, fsync)(exp, fid, oc, request);
1636 static inline int md_read_page(struct obd_export *exp,
1637 struct md_op_data *op_data,
1638 struct md_callback *cb_op,
1640 struct page **ppage)
1644 EXP_CHECK_MD_OP(exp, read_page);
1645 EXP_MD_COUNTER_INCREMENT(exp, read_page);
1646 rc = MDP(exp->exp_obd, read_page)(exp, op_data, cb_op, hash_offset,
1651 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
1652 struct ptlrpc_request **request)
1656 EXP_CHECK_MD_OP(exp, unlink);
1657 EXP_MD_COUNTER_INCREMENT(exp, unlink);
1658 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
1662 static inline int md_get_lustre_md(struct obd_export *exp,
1663 struct ptlrpc_request *req,
1664 struct obd_export *dt_exp,
1665 struct obd_export *md_exp,
1666 struct lustre_md *md)
1669 EXP_CHECK_MD_OP(exp, get_lustre_md);
1670 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
1671 RETURN(MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md));
1674 static inline int md_free_lustre_md(struct obd_export *exp,
1675 struct lustre_md *md)
1678 EXP_CHECK_MD_OP(exp, free_lustre_md);
1679 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
1680 RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md));
1683 static inline int md_update_lsm_md(struct obd_export *exp,
1684 struct lmv_stripe_md *lsm,
1685 struct mdt_body *body,
1686 ldlm_blocking_callback cb)
1689 EXP_CHECK_MD_OP(exp, update_lsm_md);
1690 EXP_MD_COUNTER_INCREMENT(exp, update_lsm_md);
1691 RETURN(MDP(exp->exp_obd, update_lsm_md)(exp, lsm, body, cb));
1694 static inline int md_merge_attr(struct obd_export *exp,
1695 const struct lmv_stripe_md *lsm,
1696 struct cl_attr *attr)
1699 EXP_CHECK_MD_OP(exp, merge_attr);
1700 EXP_MD_COUNTER_INCREMENT(exp, merge_attr);
1701 RETURN(MDP(exp->exp_obd, merge_attr)(exp, lsm, attr));
1704 static inline int md_setxattr(struct obd_export *exp,
1705 const struct lu_fid *fid, struct obd_capa *oc,
1706 obd_valid valid, const char *name,
1707 const char *input, int input_size,
1708 int output_size, int flags, __u32 suppgid,
1709 struct ptlrpc_request **request)
1712 EXP_CHECK_MD_OP(exp, setxattr);
1713 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
1714 RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, oc, valid, name, input,
1715 input_size, output_size, flags,
1719 static inline int md_getxattr(struct obd_export *exp,
1720 const struct lu_fid *fid, struct obd_capa *oc,
1721 obd_valid valid, const char *name,
1722 const char *input, int input_size,
1723 int output_size, int flags,
1724 struct ptlrpc_request **request)
1727 EXP_CHECK_MD_OP(exp, getxattr);
1728 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
1729 RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, oc, valid, name, input,
1730 input_size, output_size, flags,
1734 static inline int md_set_open_replay_data(struct obd_export *exp,
1735 struct obd_client_handle *och,
1736 struct lookup_intent *it)
1739 EXP_CHECK_MD_OP(exp, set_open_replay_data);
1740 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
1741 RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, it));
1744 static inline int md_clear_open_replay_data(struct obd_export *exp,
1745 struct obd_client_handle *och)
1748 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
1749 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
1750 RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och));
1753 static inline int md_set_lock_data(struct obd_export *exp,
1754 __u64 *lockh, void *data, __u64 *bits)
1757 EXP_CHECK_MD_OP(exp, set_lock_data);
1758 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
1759 RETURN(MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits));
1762 static inline int md_cancel_unused(struct obd_export *exp,
1763 const struct lu_fid *fid,
1764 ldlm_policy_data_t *policy,
1766 ldlm_cancel_flags_t flags,
1772 EXP_CHECK_MD_OP(exp, cancel_unused);
1773 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
1775 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
1780 static inline ldlm_mode_t md_lock_match(struct obd_export *exp, __u64 flags,
1781 const struct lu_fid *fid,
1783 ldlm_policy_data_t *policy,
1785 struct lustre_handle *lockh)
1788 EXP_CHECK_MD_OP(exp, lock_match);
1789 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
1790 RETURN(MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
1791 policy, mode, lockh));
1794 static inline int md_init_ea_size(struct obd_export *exp, int easize,
1795 int def_asize, int cookiesize,
1799 EXP_CHECK_MD_OP(exp, init_ea_size);
1800 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
1801 RETURN(MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
1802 cookiesize, def_cookiesize));
1805 static inline int md_get_remote_perm(struct obd_export *exp,
1806 const struct lu_fid *fid,
1807 struct obd_capa *oc, __u32 suppgid,
1808 struct ptlrpc_request **request)
1811 EXP_CHECK_MD_OP(exp, get_remote_perm);
1812 EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm);
1813 RETURN(MDP(exp->exp_obd, get_remote_perm)(exp, fid, oc, suppgid,
1817 static inline int md_renew_capa(struct obd_export *exp, struct obd_capa *ocapa,
1822 EXP_CHECK_MD_OP(exp, renew_capa);
1823 EXP_MD_COUNTER_INCREMENT(exp, renew_capa);
1824 rc = MDP(exp->exp_obd, renew_capa)(exp, ocapa, cb);
1828 static inline int md_unpack_capa(struct obd_export *exp,
1829 struct ptlrpc_request *req,
1830 const struct req_msg_field *field,
1831 struct obd_capa **oc)
1835 EXP_CHECK_MD_OP(exp, unpack_capa);
1836 EXP_MD_COUNTER_INCREMENT(exp, unpack_capa);
1837 rc = MDP(exp->exp_obd, unpack_capa)(exp, req, field, oc);
1841 static inline int md_intent_getattr_async(struct obd_export *exp,
1842 struct md_enqueue_info *minfo,
1843 struct ldlm_enqueue_info *einfo)
1847 EXP_CHECK_MD_OP(exp, intent_getattr_async);
1848 EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
1849 rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo, einfo);
1853 static inline int md_revalidate_lock(struct obd_export *exp,
1854 struct lookup_intent *it,
1855 struct lu_fid *fid, __u64 *bits)
1859 EXP_CHECK_MD_OP(exp, revalidate_lock);
1860 EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
1861 rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits);
1865 static inline int md_get_fid_from_lsm(struct obd_export *exp,
1866 const struct lmv_stripe_md *lsm,
1867 const char *name, int namelen,
1872 EXP_CHECK_MD_OP(exp, get_fid_from_lsm);
1873 EXP_MD_COUNTER_INCREMENT(exp, get_fid_from_lsm);
1874 rc = MDP(exp->exp_obd, get_fid_from_lsm)(exp, lsm, name, namelen, fid);
1878 /* OBD Metadata Support */
1880 extern int obd_init_caches(void);
1881 extern void obd_cleanup_caches(void);
1883 /* support routines */
1884 extern struct kmem_cache *obdo_cachep;
1886 #define OBDO_ALLOC(ptr) \
1888 OBD_SLAB_ALLOC_PTR_GFP((ptr), obdo_cachep, GFP_NOFS); \
1891 #define OBDO_FREE(ptr) \
1893 OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
1897 typedef int (*register_lwp_cb)(void *data);
1899 struct lwp_register_item {
1900 struct obd_export **lri_exp;
1901 register_lwp_cb lri_cb_func;
1903 struct list_head lri_list;
1904 char lri_name[MTI_NAME_MAXLEN];
1907 /* I'm as embarrassed about this as you are.
1909 * <shaver> // XXX do not look into _superhack with remaining eye
1910 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
1911 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
1914 #ifdef HAVE_SERVER_SUPPORT
1915 int lustre_register_lwp_item(const char *lwpname, struct obd_export **exp,
1916 register_lwp_cb cb_func, void *cb_data);
1917 void lustre_deregister_lwp_item(struct obd_export **exp);
1918 struct obd_export *lustre_find_lwp_by_index(const char *dev, __u32 idx);
1919 int tgt_name2lwp_name(const char *tgt_name, char *lwp_name, int len, __u32 idx);
1920 #endif /* HAVE_SERVER_SUPPORT */
1923 extern void obd_sysctl_init (void);
1924 extern void obd_sysctl_clean (void);
1927 typedef __u8 class_uuid_t[16];
1928 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
1931 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
1932 int class_add_uuid(const char *uuid, __u64 nid);
1933 int class_del_uuid (const char *uuid);
1934 int class_check_uuid(struct obd_uuid *uuid, __u64 nid);
1935 void class_init_uuidlist(void);
1936 void class_exit_uuidlist(void);
1939 #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
1941 /* root squash info */
1942 struct rw_semaphore;
1943 struct root_squash_info {
1946 struct list_head rsi_nosquash_nids;
1947 struct rw_semaphore rsi_sem;
1951 int server_name2index(const char *svname, __u32 *idx, const char **endptr);
1953 # define server_name2index(name, idx, ptr) do {} while (0)
1956 #endif /* __LINUX_OBD_CLASS_H */