1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
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 /* OBD Device Declarations */
62 extern struct obd_device *obd_devs[MAX_OBD_DEVICES];
63 extern cfs_spinlock_t obd_dev_lock;
65 /* OBD Operations Declarations */
66 extern struct obd_device *class_conn2obd(struct lustre_handle *);
67 extern struct obd_device *class_exp2obd(struct obd_export *);
68 extern int class_handle_ioctl(unsigned int cmd, unsigned long arg);
70 struct lu_device_type;
73 struct obd_export *class_conn2export(struct lustre_handle *);
74 int class_register_type(struct obd_ops *, struct md_ops *,
75 struct lprocfs_vars *, const char *nm,
76 struct lu_device_type *ldt);
77 int class_unregister_type(const char *nm);
79 struct obd_device *class_newdev(const char *type_name, const char *name);
80 void class_release_dev(struct obd_device *obd);
82 int class_name2dev(const char *name);
83 struct obd_device *class_name2obd(const char *name);
84 int class_uuid2dev(struct obd_uuid *uuid);
85 struct obd_device *class_uuid2obd(struct obd_uuid *uuid);
86 void class_obd_list(void);
87 struct obd_device * class_find_client_obd(struct obd_uuid *tgt_uuid,
88 const char * typ_name,
89 struct obd_uuid *grp_uuid);
90 struct obd_device * class_devices_in_group(struct obd_uuid *grp_uuid,
92 struct obd_device * class_num2obd(int num);
94 int class_notify_sptlrpc_conf(const char *fsname, int namelen);
96 char *obd_export_nid2str(struct obd_export *exp);
98 int obd_export_evict_by_nid(struct obd_device *obd, const char *nid);
99 int obd_export_evict_by_uuid(struct obd_device *obd, const char *uuid);
101 int obd_zombie_impexp_init(void);
102 void obd_zombie_impexp_stop(void);
103 void obd_zombie_impexp_cull(void);
104 void obd_zombie_barrier(void);
105 void obd_exports_barrier(struct obd_device *obd);
107 int class_process_config(struct lustre_cfg *lcfg);
108 int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
109 struct lustre_cfg *lcfg, void *data);
110 int class_attach(struct lustre_cfg *lcfg);
111 int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
112 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg);
113 int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg);
114 struct obd_device *class_incref(struct obd_device *obd,
115 const char *scope, const void *source);
116 void class_decref(struct obd_device *obd,
117 const char *scope, const void *source);
118 void dump_exports(struct obd_device *obd, int locks);
122 extern void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars);
124 static inline void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars)
126 memset(lvars, 0, sizeof(*lvars));
130 #define CFG_F_START 0x01 /* Set when we start updating from a log */
131 #define CFG_F_MARKER 0x02 /* We are within a maker */
132 #define CFG_F_SKIP 0x04 /* We should ignore this cfg command */
133 #define CFG_F_COMPAT146 0x08 /* Allow old-style logs */
134 #define CFG_F_EXCLUDE 0x10 /* OST exclusion list */
136 /* Passed as data param to class_config_parse_llog */
137 struct config_llog_instance {
140 struct super_block *cfg_sb;
141 struct obd_uuid cfg_uuid;
142 int cfg_last_idx; /* for partial llog processing */
145 int class_config_parse_llog(struct llog_ctxt *ctxt, char *name,
146 struct config_llog_instance *cfg);
147 int class_config_dump_llog(struct llog_ctxt *ctxt, char *name,
148 struct config_llog_instance *cfg);
150 /* list of active configuration logs */
151 struct config_llog_data {
153 struct ldlm_res_id cld_resid;
154 struct config_llog_instance cld_cfg;
155 cfs_list_t cld_list_chain;
156 cfs_atomic_t cld_refcount;
157 struct config_llog_data *cld_sptlrpc;/* depended sptlrpc log */
158 struct obd_export *cld_mgcexp;
159 cfs_mutex_t cld_lock;
160 unsigned int cld_stopping:1, /* we were told to stop
162 cld_lostlock:1, /* lock not requeued */
166 struct lustre_profile {
173 struct lustre_profile *class_get_profile(const char * prof);
174 void class_del_profile(const char *prof);
175 void class_del_profiles(void);
177 #if LUSTRE_TRACKS_LOCK_EXP_REFS
179 void __class_export_add_lock_ref(struct obd_export *, struct ldlm_lock *);
180 void __class_export_del_lock_ref(struct obd_export *, struct ldlm_lock *);
181 extern void (*class_export_dump_hook)(struct obd_export *);
185 #define __class_export_add_lock_ref(exp, lock) do {} while(0)
186 #define __class_export_del_lock_ref(exp, lock) do {} while(0)
190 #define class_export_rpc_get(exp) \
192 cfs_atomic_inc(&(exp)->exp_rpc_count); \
193 CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \
194 (exp), cfs_atomic_read(&(exp)->exp_rpc_count)); \
195 class_export_get(exp); \
198 #define class_export_rpc_put(exp) \
200 LASSERT(cfs_atomic_read(&exp->exp_rpc_count) > 0); \
201 cfs_atomic_dec(&(exp)->exp_rpc_count); \
202 CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \
203 (exp), cfs_atomic_read(&(exp)->exp_rpc_count)); \
204 class_export_put(exp); \
207 #define class_export_lock_get(exp, lock) \
209 cfs_atomic_inc(&(exp)->exp_locks_count); \
210 __class_export_add_lock_ref(exp, lock); \
211 CDEBUG(D_INFO, "lock GETting export %p : new locks_count %d\n", \
212 (exp), cfs_atomic_read(&(exp)->exp_locks_count)); \
213 class_export_get(exp); \
216 #define class_export_lock_put(exp, lock) \
218 LASSERT(cfs_atomic_read(&exp->exp_locks_count) > 0); \
219 cfs_atomic_dec(&(exp)->exp_locks_count); \
220 __class_export_del_lock_ref(exp, lock); \
221 CDEBUG(D_INFO, "lock PUTting export %p : new locks_count %d\n", \
222 (exp), cfs_atomic_read(&(exp)->exp_locks_count)); \
223 class_export_put(exp); \
226 #define class_export_cb_get(exp) \
228 cfs_atomic_inc(&(exp)->exp_cb_count); \
229 CDEBUG(D_INFO, "callback GETting export %p : new cb_count %d\n",\
230 (exp), cfs_atomic_read(&(exp)->exp_cb_count)); \
231 class_export_get(exp); \
234 #define class_export_cb_put(exp) \
236 LASSERT(cfs_atomic_read(&exp->exp_cb_count) > 0); \
237 cfs_atomic_dec(&(exp)->exp_cb_count); \
238 CDEBUG(D_INFO, "callback PUTting export %p : new cb_count %d\n",\
239 (exp), cfs_atomic_read(&(exp)->exp_cb_count)); \
240 class_export_put(exp); \
244 struct obd_export *class_export_get(struct obd_export *exp);
245 void class_export_put(struct obd_export *exp);
246 struct obd_export *class_new_export(struct obd_device *obddev,
247 struct obd_uuid *cluuid);
248 void class_unlink_export(struct obd_export *exp);
250 struct obd_import *class_import_get(struct obd_import *);
251 void class_import_put(struct obd_import *);
252 struct obd_import *class_new_import(struct obd_device *obd);
253 void class_destroy_import(struct obd_import *exp);
255 struct obd_type *class_search_type(const char *name);
256 struct obd_type *class_get_type(const char *name);
257 void class_put_type(struct obd_type *type);
258 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
259 struct obd_uuid *cluuid);
260 int class_disconnect(struct obd_export *exp);
261 void class_fail_export(struct obd_export *exp);
262 int class_connected_export(struct obd_export *exp);
263 void class_disconnect_exports(struct obd_device *obddev);
264 int class_manual_cleanup(struct obd_device *obd);
265 void class_disconnect_stale_exports(struct obd_device *,
266 int (*test_export)(struct obd_export *));
267 static inline enum obd_option exp_flags_from_obd(struct obd_device *obd)
269 return ((obd->obd_fail ? OBD_OPT_FAILOVER : 0) |
270 (obd->obd_force ? OBD_OPT_FORCE : 0) |
271 (obd->obd_abort_recovery ? OBD_OPT_ABORT_RECOV : 0) |
275 static inline struct lu_target *class_exp2tgt(struct obd_export *exp)
277 LASSERT(exp->exp_obd);
278 return exp->exp_obd->u.obt.obt_lut;
281 static inline struct lr_server_data *class_server_data(struct obd_device *obd)
283 LASSERT(obd->u.obt.obt_lut);
284 return &obd->u.obt.obt_lut->lut_lsd;
287 void obdo_cpy_md(struct obdo *dst, struct obdo *src, obd_flag valid);
288 void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj);
289 void obdo_from_iattr(struct obdo *oa, struct iattr *attr,
290 unsigned int ia_valid);
291 void iattr_from_obdo(struct iattr *attr, struct obdo *oa, obd_flag valid);
292 void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, obd_flag valid);
293 void obdo_from_md(struct obdo *oa, struct md_op_data *op_data,
296 #define OBT(dev) (dev)->obd_type
297 #define OBP(dev, op) (dev)->obd_type->typ_dt_ops->o_ ## op
298 #define MDP(dev, op) (dev)->obd_type->typ_md_ops->m_ ## op
299 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
301 /* Ensure obd_setup: used for cleanup which must be called
302 while obd is stopping */
303 #define OBD_CHECK_DEV(obd) \
306 CERROR("NULL device\n"); \
311 /* ensure obd_setup and !obd_stopping */
312 #define OBD_CHECK_DEV_ACTIVE(obd) \
314 OBD_CHECK_DEV(obd); \
315 if (!(obd)->obd_set_up || (obd)->obd_stopping) { \
316 CERROR("Device %d not setup\n", \
324 #define OBD_COUNTER_OFFSET(op) \
325 ((offsetof(struct obd_ops, o_ ## op) - \
326 offsetof(struct obd_ops, o_iocontrol)) \
327 / sizeof(((struct obd_ops *)(0))->o_iocontrol))
329 #define OBD_COUNTER_INCREMENT(obdx, op) \
330 if ((obdx)->obd_stats != NULL) { \
331 unsigned int coffset; \
332 coffset = (unsigned int)((obdx)->obd_cntr_base) + \
333 OBD_COUNTER_OFFSET(op); \
334 LASSERT(coffset < (obdx)->obd_stats->ls_num); \
335 lprocfs_counter_incr((obdx)->obd_stats, coffset); \
338 #define EXP_COUNTER_INCREMENT(export, op) \
339 if ((export)->exp_obd->obd_stats != NULL) { \
340 unsigned int coffset; \
341 coffset = (unsigned int)((export)->exp_obd->obd_cntr_base) + \
342 OBD_COUNTER_OFFSET(op); \
343 LASSERT(coffset < (export)->exp_obd->obd_stats->ls_num); \
344 lprocfs_counter_incr((export)->exp_obd->obd_stats, coffset); \
345 if ((export)->exp_nid_stats != NULL && \
346 (export)->exp_nid_stats->nid_stats != NULL) \
347 lprocfs_counter_incr( \
348 (export)->exp_nid_stats->nid_stats, coffset);\
351 #define MD_COUNTER_OFFSET(op) \
352 ((offsetof(struct md_ops, m_ ## op) - \
353 offsetof(struct md_ops, m_getstatus)) \
354 / sizeof(((struct md_ops *)(0))->m_getstatus))
356 #define MD_COUNTER_INCREMENT(obdx, op) \
357 if ((obd)->md_stats != NULL) { \
358 unsigned int coffset; \
359 coffset = (unsigned int)((obdx)->md_cntr_base) + \
360 MD_COUNTER_OFFSET(op); \
361 LASSERT(coffset < (obdx)->md_stats->ls_num); \
362 lprocfs_counter_incr((obdx)->md_stats, coffset); \
365 #define EXP_MD_COUNTER_INCREMENT(export, op) \
366 if ((export)->exp_obd->obd_stats != NULL) { \
367 unsigned int coffset; \
368 coffset = (unsigned int)((export)->exp_obd->md_cntr_base) + \
369 MD_COUNTER_OFFSET(op); \
370 LASSERT(coffset < (export)->exp_obd->md_stats->ls_num); \
371 lprocfs_counter_incr((export)->exp_obd->md_stats, coffset); \
372 if ((export)->exp_md_stats != NULL) \
373 lprocfs_counter_incr( \
374 (export)->exp_md_stats, coffset); \
378 #define OBD_COUNTER_OFFSET(op)
379 #define OBD_COUNTER_INCREMENT(obd, op)
380 #define EXP_COUNTER_INCREMENT(exp, op)
381 #define MD_COUNTER_INCREMENT(obd, op)
382 #define EXP_MD_COUNTER_INCREMENT(exp, op)
385 static inline int lprocfs_nid_ldlm_stats_init(struct nid_stat* tmp)
387 /* Always add in ldlm_stats */
388 tmp->nid_ldlm_stats = lprocfs_alloc_stats(LDLM_LAST_OPC - LDLM_FIRST_OPC
389 ,LPROCFS_STATS_FLAG_NOPERCPU);
390 if (tmp->nid_ldlm_stats == NULL)
393 lprocfs_init_ldlm_stats(tmp->nid_ldlm_stats);
395 return lprocfs_register_stats(tmp->nid_proc, "ldlm_stats",
396 tmp->nid_ldlm_stats);
399 #define OBD_CHECK_MD_OP(obd, op, err) \
401 if (!OBT(obd) || !MDP((obd), op)) { \
403 CERROR("md_" #op ": dev %s/%d no operation\n", \
404 obd->obd_name, obd->obd_minor); \
409 #define EXP_CHECK_MD_OP(exp, op) \
411 if ((exp) == NULL) { \
412 CERROR("obd_" #op ": NULL export\n"); \
415 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
416 CERROR("obd_" #op ": cleaned up obd\n"); \
417 RETURN(-EOPNOTSUPP); \
419 if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
420 CERROR("obd_" #op ": dev %s/%d no operation\n", \
421 (exp)->exp_obd->obd_name, \
422 (exp)->exp_obd->obd_minor); \
423 RETURN(-EOPNOTSUPP); \
428 #define OBD_CHECK_DT_OP(obd, op, err) \
430 if (!OBT(obd) || !OBP((obd), op)) { \
432 CERROR("obd_" #op ": dev %d no operation\n", \
438 #define EXP_CHECK_DT_OP(exp, op) \
440 if ((exp) == NULL) { \
441 CERROR("obd_" #op ": NULL export\n"); \
444 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
445 CERROR("obd_" #op ": cleaned up obd\n"); \
446 RETURN(-EOPNOTSUPP); \
448 if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
449 CERROR("obd_" #op ": dev %d no operation\n", \
450 (exp)->exp_obd->obd_minor); \
451 RETURN(-EOPNOTSUPP); \
455 #define CTXT_CHECK_OP(ctxt, op, err) \
457 if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
459 CERROR("lop_" #op ": dev %d no operation\n", \
460 ctxt->loc_obd->obd_minor); \
465 static inline int class_devno_max(void)
467 return MAX_OBD_DEVICES;
470 static inline int obd_get_info(struct obd_export *exp, __u32 keylen,
471 void *key, __u32 *vallen, void *val,
472 struct lov_stripe_md *lsm)
477 EXP_CHECK_DT_OP(exp, get_info);
478 EXP_COUNTER_INCREMENT(exp, get_info);
480 rc = OBP(exp->exp_obd, get_info)(exp, keylen, key, vallen, val, lsm);
484 static inline int obd_set_info_async(struct obd_export *exp, obd_count keylen,
485 void *key, obd_count vallen, void *val,
486 struct ptlrpc_request_set *set)
491 EXP_CHECK_DT_OP(exp, set_info_async);
492 EXP_COUNTER_INCREMENT(exp, set_info_async);
494 rc = OBP(exp->exp_obd, set_info_async)(exp, keylen, key, vallen, val,
500 * obd-lu integration.
502 * Functionality is being moved into new lu_device-based layering, but some
503 * pieces of configuration process are still based on obd devices.
505 * Specifically, lu_device_type_operations::ldto_device_alloc() methods fully
506 * subsume ->o_setup() methods of obd devices they replace. The same for
507 * lu_device_operations::ldo_process_config() and ->o_process_config(). As a
508 * result, obd_setup() and obd_process_config() branch and call one XOR
511 * Yet neither lu_device_type_operations::ldto_device_fini() nor
512 * lu_device_type_operations::ldto_device_free() fully implement the
513 * functionality of ->o_precleanup() and ->o_cleanup() they override. Hence,
514 * obd_precleanup() and obd_cleanup() call both lu_device and obd operations.
517 #define DECLARE_LU_VARS(ldt, d) \
518 struct lu_device_type *ldt; \
521 static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
524 DECLARE_LU_VARS(ldt, d);
527 ldt = obd->obd_type->typ_lu;
529 struct lu_context session_ctx;
531 lu_context_init(&session_ctx, LCT_SESSION);
532 session_ctx.lc_thread = NULL;
533 lu_context_enter(&session_ctx);
535 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
537 env.le_ses = &session_ctx;
538 d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
547 lu_context_exit(&session_ctx);
548 lu_context_fini(&session_ctx);
551 OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
552 OBD_COUNTER_INCREMENT(obd, setup);
553 rc = OBP(obd, setup)(obd, cfg);
558 static inline int obd_precleanup(struct obd_device *obd,
559 enum obd_cleanup_stage cleanup_stage)
562 DECLARE_LU_VARS(ldt, d);
566 ldt = obd->obd_type->typ_lu;
568 if (ldt != NULL && d != NULL) {
569 if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
572 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
574 ldt->ldt_ops->ldto_device_fini(&env, d);
579 OBD_CHECK_DT_OP(obd, precleanup, 0);
580 OBD_COUNTER_INCREMENT(obd, precleanup);
582 rc = OBP(obd, precleanup)(obd, cleanup_stage);
586 static inline int obd_cleanup(struct obd_device *obd)
589 DECLARE_LU_VARS(ldt, d);
594 ldt = obd->obd_type->typ_lu;
596 if (ldt != NULL && d != NULL) {
599 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
601 ldt->ldt_ops->ldto_device_free(&env, d);
603 obd->obd_lu_dev = NULL;
606 OBD_CHECK_DT_OP(obd, cleanup, 0);
607 OBD_COUNTER_INCREMENT(obd, cleanup);
609 rc = OBP(obd, cleanup)(obd);
614 obd_process_config(struct obd_device *obd, int datalen, void *data)
617 DECLARE_LU_VARS(ldt, d);
622 obd->obd_process_conf = 1;
623 ldt = obd->obd_type->typ_lu;
625 if (ldt != NULL && d != NULL) {
628 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
630 rc = d->ld_ops->ldo_process_config(&env, d, data);
634 OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
635 rc = OBP(obd, process_config)(obd, datalen, data);
637 OBD_COUNTER_INCREMENT(obd, process_config);
638 obd->obd_process_conf = 0;
643 /* Pack an in-memory MD struct for storage on disk.
644 * Returns +ve size of packed MD (0 for free), or -ve error.
646 * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL).
647 * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed.
648 * If @*disk_tgt == NULL, it will be allocated
650 static inline int obd_packmd(struct obd_export *exp,
651 struct lov_mds_md **disk_tgt,
652 struct lov_stripe_md *mem_src)
657 EXP_CHECK_DT_OP(exp, packmd);
658 EXP_COUNTER_INCREMENT(exp, packmd);
660 rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src);
664 static inline int obd_size_diskmd(struct obd_export *exp,
665 struct lov_stripe_md *mem_src)
667 return obd_packmd(exp, NULL, mem_src);
670 /* helper functions */
671 static inline int obd_alloc_diskmd(struct obd_export *exp,
672 struct lov_mds_md **disk_tgt)
675 LASSERT(*disk_tgt == NULL);
676 return obd_packmd(exp, disk_tgt, NULL);
679 static inline int obd_free_diskmd(struct obd_export *exp,
680 struct lov_mds_md **disk_tgt)
684 return obd_packmd(exp, disk_tgt, NULL);
687 /* Unpack an MD struct from disk to in-memory format.
688 * Returns +ve size of unpacked MD (0 for free), or -ve error.
690 * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL).
691 * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed.
692 * If @*mem_tgt == NULL, it will be allocated
694 static inline int obd_unpackmd(struct obd_export *exp,
695 struct lov_stripe_md **mem_tgt,
696 struct lov_mds_md *disk_src,
702 EXP_CHECK_DT_OP(exp, unpackmd);
703 EXP_COUNTER_INCREMENT(exp, unpackmd);
705 rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len);
709 /* helper functions */
710 static inline int obd_alloc_memmd(struct obd_export *exp,
711 struct lov_stripe_md **mem_tgt)
714 LASSERT(*mem_tgt == NULL);
715 return obd_unpackmd(exp, mem_tgt, NULL, 0);
718 static inline int obd_free_memmd(struct obd_export *exp,
719 struct lov_stripe_md **mem_tgt)
725 rc = obd_unpackmd(exp, mem_tgt, NULL, 0);
730 static inline int obd_precreate(struct obd_export *exp)
735 EXP_CHECK_DT_OP(exp, precreate);
736 OBD_COUNTER_INCREMENT(exp->exp_obd, precreate);
738 rc = OBP(exp->exp_obd, precreate)(exp);
742 static inline int obd_create_async(struct obd_export *exp,
743 struct obd_info *oinfo,
744 struct lov_stripe_md **ea,
745 struct obd_trans_info *oti)
750 EXP_CHECK_DT_OP(exp, create_async);
751 EXP_COUNTER_INCREMENT(exp, create_async);
753 rc = OBP(exp->exp_obd, create_async)(exp, oinfo, ea, oti);
757 static inline int obd_create(struct obd_export *exp, struct obdo *obdo,
758 struct lov_stripe_md **ea,
759 struct obd_trans_info *oti)
764 EXP_CHECK_DT_OP(exp, create);
765 EXP_COUNTER_INCREMENT(exp, create);
767 rc = OBP(exp->exp_obd, create)(exp, obdo, ea, oti);
771 static inline int obd_destroy(struct obd_export *exp, struct obdo *obdo,
772 struct lov_stripe_md *ea,
773 struct obd_trans_info *oti,
774 struct obd_export *md_exp, void *capa)
779 EXP_CHECK_DT_OP(exp, destroy);
780 EXP_COUNTER_INCREMENT(exp, destroy);
782 rc = OBP(exp->exp_obd, destroy)(exp, obdo, ea, oti, md_exp, capa);
786 static inline int obd_getattr(struct obd_export *exp, struct obd_info *oinfo)
791 EXP_CHECK_DT_OP(exp, getattr);
792 EXP_COUNTER_INCREMENT(exp, getattr);
794 rc = OBP(exp->exp_obd, getattr)(exp, oinfo);
798 static inline int obd_getattr_async(struct obd_export *exp,
799 struct obd_info *oinfo,
800 struct ptlrpc_request_set *set)
805 EXP_CHECK_DT_OP(exp, getattr_async);
806 EXP_COUNTER_INCREMENT(exp, getattr_async);
808 rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set);
812 static inline int obd_setattr(struct obd_export *exp, struct obd_info *oinfo,
813 struct obd_trans_info *oti)
818 EXP_CHECK_DT_OP(exp, setattr);
819 EXP_COUNTER_INCREMENT(exp, setattr);
821 rc = OBP(exp->exp_obd, setattr)(exp, oinfo, oti);
825 /* This performs all the requests set init/wait/destroy actions. */
826 static inline int obd_setattr_rqset(struct obd_export *exp,
827 struct obd_info *oinfo,
828 struct obd_trans_info *oti)
830 struct ptlrpc_request_set *set = NULL;
834 EXP_CHECK_DT_OP(exp, setattr_async);
835 EXP_COUNTER_INCREMENT(exp, setattr_async);
837 set = ptlrpc_prep_set();
841 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
843 rc = ptlrpc_set_wait(set);
844 ptlrpc_set_destroy(set);
848 /* This adds all the requests into @set if @set != NULL, otherwise
849 all requests are sent asynchronously without waiting for response. */
850 static inline int obd_setattr_async(struct obd_export *exp,
851 struct obd_info *oinfo,
852 struct obd_trans_info *oti,
853 struct ptlrpc_request_set *set)
858 EXP_CHECK_DT_OP(exp, setattr_async);
859 EXP_COUNTER_INCREMENT(exp, setattr_async);
861 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
865 static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
868 struct obd_device *obd = imp->imp_obd;
872 OBD_CHECK_DEV_ACTIVE(obd);
873 OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
874 OBD_COUNTER_INCREMENT(obd, add_conn);
876 rc = OBP(obd, add_conn)(imp, uuid, priority);
880 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
882 struct obd_device *obd = imp->imp_obd;
886 OBD_CHECK_DEV_ACTIVE(obd);
887 OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
888 OBD_COUNTER_INCREMENT(obd, del_conn);
890 rc = OBP(obd, del_conn)(imp, uuid);
894 static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp)
896 struct obd_uuid *uuid;
899 OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL);
900 EXP_COUNTER_INCREMENT(exp, get_uuid);
902 uuid = OBP(exp->exp_obd, get_uuid)(exp);
906 /** Create a new /a exp on device /a obd for the uuid /a cluuid
907 * @param exp New export handle
908 * @param d Connect data, supported flags are set, flags also understood
909 * by obd are returned.
911 static inline int obd_connect(const struct lu_env *env,
912 struct obd_export **exp,struct obd_device *obd,
913 struct obd_uuid *cluuid,
914 struct obd_connect_data *d,
918 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
922 OBD_CHECK_DEV_ACTIVE(obd);
923 OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
924 OBD_COUNTER_INCREMENT(obd, connect);
926 rc = OBP(obd, connect)(env, exp, obd, cluuid, d, localdata);
927 /* check that only subset is granted */
928 LASSERT(ergo(d != NULL,
929 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
933 static inline int obd_reconnect(const struct lu_env *env,
934 struct obd_export *exp,
935 struct obd_device *obd,
936 struct obd_uuid *cluuid,
937 struct obd_connect_data *d,
941 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
946 OBD_CHECK_DEV_ACTIVE(obd);
947 OBD_CHECK_DT_OP(obd, reconnect, 0);
948 OBD_COUNTER_INCREMENT(obd, reconnect);
950 rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
951 /* check that only subset is granted */
952 LASSERT(ergo(d != NULL,
953 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
957 static inline int obd_disconnect(struct obd_export *exp)
962 EXP_CHECK_DT_OP(exp, disconnect);
963 EXP_COUNTER_INCREMENT(exp, disconnect);
965 rc = OBP(exp->exp_obd, disconnect)(exp);
969 static inline int obd_fid_init(struct obd_export *exp)
974 OBD_CHECK_DT_OP(exp->exp_obd, fid_init, 0);
975 EXP_COUNTER_INCREMENT(exp, fid_init);
977 rc = OBP(exp->exp_obd, fid_init)(exp);
981 static inline int obd_fid_fini(struct obd_export *exp)
986 OBD_CHECK_DT_OP(exp->exp_obd, fid_fini, 0);
987 EXP_COUNTER_INCREMENT(exp, fid_fini);
989 rc = OBP(exp->exp_obd, fid_fini)(exp);
993 static inline int obd_fid_alloc(struct obd_export *exp,
995 struct md_op_data *op_data)
1000 EXP_CHECK_DT_OP(exp, fid_alloc);
1001 EXP_COUNTER_INCREMENT(exp, fid_alloc);
1003 rc = OBP(exp->exp_obd, fid_alloc)(exp, fid, op_data);
1007 static inline int obd_fid_delete(struct obd_export *exp,
1008 const struct lu_fid *fid)
1013 EXP_CHECK_DT_OP(exp, fid_delete);
1014 EXP_COUNTER_INCREMENT(exp, fid_delete);
1016 rc = OBP(exp->exp_obd, fid_delete)(exp, fid);
1020 static inline int obd_ping(struct obd_export *exp)
1025 OBD_CHECK_DT_OP(exp->exp_obd, ping, 0);
1026 EXP_COUNTER_INCREMENT(exp, ping);
1028 rc = OBP(exp->exp_obd, ping)(exp);
1032 static inline int obd_pool_new(struct obd_device *obd, char *poolname)
1037 OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP);
1038 OBD_COUNTER_INCREMENT(obd, pool_new);
1040 rc = OBP(obd, pool_new)(obd, poolname);
1044 static inline int obd_pool_del(struct obd_device *obd, char *poolname)
1049 OBD_CHECK_DT_OP(obd, pool_del, -EOPNOTSUPP);
1050 OBD_COUNTER_INCREMENT(obd, pool_del);
1052 rc = OBP(obd, pool_del)(obd, poolname);
1056 static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname)
1061 OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP);
1062 OBD_COUNTER_INCREMENT(obd, pool_add);
1064 rc = OBP(obd, pool_add)(obd, poolname, ostname);
1068 static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname)
1073 OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP);
1074 OBD_COUNTER_INCREMENT(obd, pool_rem);
1076 rc = OBP(obd, pool_rem)(obd, poolname, ostname);
1080 static inline void obd_getref(struct obd_device *obd)
1083 if (OBT(obd) && OBP(obd, getref)) {
1084 OBD_COUNTER_INCREMENT(obd, getref);
1085 OBP(obd, getref)(obd);
1090 static inline void obd_putref(struct obd_device *obd)
1093 if (OBT(obd) && OBP(obd, putref)) {
1094 OBD_COUNTER_INCREMENT(obd, putref);
1095 OBP(obd, putref)(obd);
1100 static inline int obd_init_export(struct obd_export *exp)
1105 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1106 OBP((exp)->exp_obd, init_export))
1107 rc = OBP(exp->exp_obd, init_export)(exp);
1111 static inline int obd_destroy_export(struct obd_export *exp)
1114 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
1115 OBP((exp)->exp_obd, destroy_export))
1116 OBP(exp->exp_obd, destroy_export)(exp);
1120 static inline int obd_extent_calc(struct obd_export *exp,
1121 struct lov_stripe_md *md,
1122 int cmd, obd_off *offset)
1126 EXP_CHECK_DT_OP(exp, extent_calc);
1127 rc = OBP(exp->exp_obd, extent_calc)(exp, md, cmd, offset);
1131 static inline struct dentry *
1132 obd_lvfs_fid2dentry(struct obd_export *exp, __u64 id_ino, __u32 gen, __u64 gr)
1134 LASSERT(exp->exp_obd);
1136 return lvfs_fid2dentry(&exp->exp_obd->obd_lvfs_ctxt, id_ino, gen, gr,
1141 obd_lvfs_open_llog(struct obd_export *exp, __u64 id_ino, struct dentry *dentry)
1143 LASSERT(exp->exp_obd);
1144 CERROR("FIXME what's the story here? This needs to be an obd fn?\n");
1146 return lvfs_open_llog(&exp->exp_obd->obd_lvfs_ctxt, id_ino,
1147 dentry, exp->exp_obd);
1152 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1153 * If the cache is older than @max_age we will get a new value from the
1154 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1155 static inline int obd_statfs_async(struct obd_device *obd,
1156 struct obd_info *oinfo,
1158 struct ptlrpc_request_set *rqset)
1166 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1167 OBD_COUNTER_INCREMENT(obd, statfs);
1169 CDEBUG(D_SUPER, "%s: osfs %p age "LPU64", max_age "LPU64"\n",
1170 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
1171 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1172 rc = OBP(obd, statfs_async)(obd, oinfo, max_age, rqset);
1174 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1175 " objects "LPU64"/"LPU64"\n",
1176 obd->obd_name, &obd->obd_osfs,
1177 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1178 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1179 cfs_spin_lock(&obd->obd_osfs_lock);
1180 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
1181 cfs_spin_unlock(&obd->obd_osfs_lock);
1182 oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
1183 if (oinfo->oi_cb_up)
1184 oinfo->oi_cb_up(oinfo, 0);
1189 static inline int obd_statfs_rqset(struct obd_device *obd,
1190 struct obd_statfs *osfs, __u64 max_age,
1193 struct ptlrpc_request_set *set = NULL;
1194 struct obd_info oinfo = { { { 0 } } };
1198 set = ptlrpc_prep_set();
1202 oinfo.oi_osfs = osfs;
1203 oinfo.oi_flags = flags;
1204 rc = obd_statfs_async(obd, &oinfo, max_age, set);
1206 rc = ptlrpc_set_wait(set);
1207 ptlrpc_set_destroy(set);
1211 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1212 * If the cache is older than @max_age we will get a new value from the
1213 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1214 static inline int obd_statfs(struct obd_device *obd, struct obd_statfs *osfs,
1215 __u64 max_age, __u32 flags)
1223 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1224 OBD_COUNTER_INCREMENT(obd, statfs);
1226 CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n",
1227 obd->obd_osfs_age, max_age);
1228 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1229 rc = OBP(obd, statfs)(obd, osfs, max_age, flags);
1231 cfs_spin_lock(&obd->obd_osfs_lock);
1232 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1233 obd->obd_osfs_age = cfs_time_current_64();
1234 cfs_spin_unlock(&obd->obd_osfs_lock);
1237 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1238 " objects "LPU64"/"LPU64"\n",
1239 obd->obd_name, &obd->obd_osfs,
1240 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1241 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1242 cfs_spin_lock(&obd->obd_osfs_lock);
1243 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1244 cfs_spin_unlock(&obd->obd_osfs_lock);
1249 static inline int obd_sync(struct obd_export *exp, struct obdo *oa,
1250 struct lov_stripe_md *ea, obd_size start,
1251 obd_size end, void *capa)
1256 OBD_CHECK_DT_OP(exp->exp_obd, sync, -EOPNOTSUPP);
1257 EXP_COUNTER_INCREMENT(exp, sync);
1259 rc = OBP(exp->exp_obd, sync)(exp, oa, ea, start, end, capa);
1263 static inline int obd_sync_fs(struct obd_device *obd, struct obd_info *oinfo,
1269 OBD_CHECK_DT_OP(obd, sync_fs, -EOPNOTSUPP);
1270 OBD_COUNTER_INCREMENT(obd, sync);
1272 rc = OBP(obd, sync_fs)(obd, oinfo, wait);
1277 static inline int obd_punch_rqset(struct obd_export *exp,
1278 struct obd_info *oinfo,
1279 struct obd_trans_info *oti)
1281 struct ptlrpc_request_set *set = NULL;
1285 EXP_CHECK_DT_OP(exp, punch);
1286 EXP_COUNTER_INCREMENT(exp, punch);
1288 set = ptlrpc_prep_set();
1292 rc = OBP(exp->exp_obd, punch)(exp, oinfo, oti, set);
1294 rc = ptlrpc_set_wait(set);
1295 ptlrpc_set_destroy(set);
1299 static inline int obd_punch(struct obd_export *exp, struct obd_info *oinfo,
1300 struct obd_trans_info *oti,
1301 struct ptlrpc_request_set *rqset)
1306 EXP_CHECK_DT_OP(exp, punch);
1307 EXP_COUNTER_INCREMENT(exp, punch);
1309 rc = OBP(exp->exp_obd, punch)(exp, oinfo, oti, rqset);
1313 static inline int obd_brw(int cmd, struct obd_export *exp,
1314 struct obd_info *oinfo, obd_count oa_bufs,
1315 struct brw_page *pg, struct obd_trans_info *oti)
1320 EXP_CHECK_DT_OP(exp, brw);
1321 EXP_COUNTER_INCREMENT(exp, brw);
1323 if (!(cmd & (OBD_BRW_RWMASK | OBD_BRW_CHECK))) {
1324 CERROR("obd_brw: cmd must be OBD_BRW_READ, OBD_BRW_WRITE, "
1325 "or OBD_BRW_CHECK\n");
1329 rc = OBP(exp->exp_obd, brw)(cmd, exp, oinfo, oa_bufs, pg, oti);
1333 static inline int obd_preprw(int cmd, struct obd_export *exp, struct obdo *oa,
1334 int objcount, struct obd_ioobj *obj,
1335 struct niobuf_remote *remote, int *pages,
1336 struct niobuf_local *local,
1337 struct obd_trans_info *oti,
1338 struct lustre_capa *capa)
1343 EXP_CHECK_DT_OP(exp, preprw);
1344 EXP_COUNTER_INCREMENT(exp, preprw);
1346 rc = OBP(exp->exp_obd, preprw)(cmd, exp, oa, objcount, obj, remote,
1347 pages, local, oti, capa);
1351 static inline int obd_commitrw(int cmd, struct obd_export *exp, struct obdo *oa,
1352 int objcount, struct obd_ioobj *obj,
1353 struct niobuf_remote *rnb, int pages,
1354 struct niobuf_local *local,
1355 struct obd_trans_info *oti, int rc)
1359 EXP_CHECK_DT_OP(exp, commitrw);
1360 EXP_COUNTER_INCREMENT(exp, commitrw);
1362 rc = OBP(exp->exp_obd, commitrw)(cmd, exp, oa, objcount, obj,
1363 rnb, pages, local, oti, rc);
1367 static inline int obd_merge_lvb(struct obd_export *exp,
1368 struct lov_stripe_md *lsm,
1369 struct ost_lvb *lvb, int kms_only)
1374 EXP_CHECK_DT_OP(exp, merge_lvb);
1375 EXP_COUNTER_INCREMENT(exp, merge_lvb);
1377 rc = OBP(exp->exp_obd, merge_lvb)(exp, lsm, lvb, kms_only);
1381 static inline int obd_adjust_kms(struct obd_export *exp,
1382 struct lov_stripe_md *lsm, obd_off size,
1388 EXP_CHECK_DT_OP(exp, adjust_kms);
1389 EXP_COUNTER_INCREMENT(exp, adjust_kms);
1391 rc = OBP(exp->exp_obd, adjust_kms)(exp, lsm, size, shrink);
1395 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1396 int len, void *karg, void *uarg)
1401 EXP_CHECK_DT_OP(exp, iocontrol);
1402 EXP_COUNTER_INCREMENT(exp, iocontrol);
1404 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1408 static inline int obd_enqueue_rqset(struct obd_export *exp,
1409 struct obd_info *oinfo,
1410 struct ldlm_enqueue_info *einfo)
1412 struct ptlrpc_request_set *set = NULL;
1416 EXP_CHECK_DT_OP(exp, enqueue);
1417 EXP_COUNTER_INCREMENT(exp, enqueue);
1419 set = ptlrpc_prep_set();
1423 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1425 rc = ptlrpc_set_wait(set);
1426 ptlrpc_set_destroy(set);
1430 static inline int obd_enqueue(struct obd_export *exp,
1431 struct obd_info *oinfo,
1432 struct ldlm_enqueue_info *einfo,
1433 struct ptlrpc_request_set *set)
1438 EXP_CHECK_DT_OP(exp, enqueue);
1439 EXP_COUNTER_INCREMENT(exp, enqueue);
1441 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1445 static inline int obd_change_cbdata(struct obd_export *exp,
1446 struct lov_stripe_md *lsm,
1447 ldlm_iterator_t it, void *data)
1452 EXP_CHECK_DT_OP(exp, change_cbdata);
1453 EXP_COUNTER_INCREMENT(exp, change_cbdata);
1455 rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data);
1459 static inline int obd_find_cbdata(struct obd_export *exp,
1460 struct lov_stripe_md *lsm,
1461 ldlm_iterator_t it, void *data)
1466 EXP_CHECK_DT_OP(exp, find_cbdata);
1467 EXP_COUNTER_INCREMENT(exp, find_cbdata);
1469 rc = OBP(exp->exp_obd, find_cbdata)(exp, lsm, it, data);
1473 static inline int obd_cancel(struct obd_export *exp,
1474 struct lov_stripe_md *ea, __u32 mode,
1475 struct lustre_handle *lockh)
1480 EXP_CHECK_DT_OP(exp, cancel);
1481 EXP_COUNTER_INCREMENT(exp, cancel);
1483 rc = OBP(exp->exp_obd, cancel)(exp, ea, mode, lockh);
1487 static inline int obd_cancel_unused(struct obd_export *exp,
1488 struct lov_stripe_md *ea,
1489 ldlm_cancel_flags_t flags,
1495 EXP_CHECK_DT_OP(exp, cancel_unused);
1496 EXP_COUNTER_INCREMENT(exp, cancel_unused);
1498 rc = OBP(exp->exp_obd, cancel_unused)(exp, ea, flags, opaque);
1502 static inline int obd_pin(struct obd_export *exp, const struct lu_fid *fid,
1503 struct obd_capa *oc, struct obd_client_handle *handle,
1509 EXP_CHECK_DT_OP(exp, pin);
1510 EXP_COUNTER_INCREMENT(exp, pin);
1512 rc = OBP(exp->exp_obd, pin)(exp, fid, oc, handle, flag);
1516 static inline int obd_unpin(struct obd_export *exp,
1517 struct obd_client_handle *handle, int flag)
1522 EXP_CHECK_DT_OP(exp, unpin);
1523 EXP_COUNTER_INCREMENT(exp, unpin);
1525 rc = OBP(exp->exp_obd, unpin)(exp, handle, flag);
1530 static inline void obd_import_event(struct obd_device *obd,
1531 struct obd_import *imp,
1532 enum obd_import_event event)
1536 CERROR("NULL device\n");
1540 if (obd->obd_set_up && OBP(obd, import_event)) {
1541 OBD_COUNTER_INCREMENT(obd, import_event);
1542 OBP(obd, import_event)(obd, imp, event);
1547 static inline int obd_llog_connect(struct obd_export *exp,
1548 struct llogd_conn_body *body)
1553 OBD_CHECK_DT_OP(exp->exp_obd, llog_connect, 0);
1554 EXP_COUNTER_INCREMENT(exp, llog_connect);
1556 rc = OBP(exp->exp_obd, llog_connect)(exp, body);
1561 static inline int obd_notify(struct obd_device *obd,
1562 struct obd_device *watched,
1563 enum obd_notify_event ev,
1570 /* the check for async_recov is a complete hack - I'm hereby
1571 overloading the meaning to also mean "this was called from
1572 mds_postsetup". I know that my mds is able to handle notifies
1573 by this point, and it needs to get them to execute mds_postrecov. */
1574 if (!obd->obd_set_up && !obd->obd_async_recov) {
1575 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1579 if (!OBP(obd, notify)) {
1580 CERROR("obd %s has no notify handler\n", obd->obd_name);
1584 OBD_COUNTER_INCREMENT(obd, notify);
1585 rc = OBP(obd, notify)(obd, watched, ev, data);
1589 static inline int obd_notify_observer(struct obd_device *observer,
1590 struct obd_device *observed,
1591 enum obd_notify_event ev,
1597 struct obd_notify_upcall *onu;
1599 if (observer->obd_observer)
1600 rc1 = obd_notify(observer->obd_observer, observed, ev, data);
1604 * Also, call non-obd listener, if any
1606 onu = &observer->obd_upcall;
1607 if (onu->onu_upcall != NULL)
1608 rc2 = onu->onu_upcall(observer, observed, ev,
1609 onu->onu_owner, NULL);
1613 return rc1 ? rc1 : rc2;
1616 static inline int obd_quotacheck(struct obd_export *exp,
1617 struct obd_quotactl *oqctl)
1622 EXP_CHECK_DT_OP(exp, quotacheck);
1623 EXP_COUNTER_INCREMENT(exp, quotacheck);
1625 rc = OBP(exp->exp_obd, quotacheck)(exp->exp_obd, exp, oqctl);
1629 static inline int obd_quotactl(struct obd_export *exp,
1630 struct obd_quotactl *oqctl)
1635 EXP_CHECK_DT_OP(exp, quotactl);
1636 EXP_COUNTER_INCREMENT(exp, quotactl);
1638 rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl);
1642 static inline int obd_quota_adjust_qunit(struct obd_export *exp,
1643 struct quota_adjust_qunit *oqaq,
1644 struct lustre_quota_ctxt *qctxt,
1645 struct ptlrpc_request_set *set)
1647 #if defined(LPROCFS) && defined(HAVE_QUOTA_SUPPORT)
1648 struct timeval work_start;
1649 struct timeval work_end;
1655 #if defined(LPROCFS) && defined(HAVE_QUOTA_SUPPORT)
1657 cfs_gettimeofday(&work_start);
1659 EXP_CHECK_DT_OP(exp, quota_adjust_qunit);
1660 EXP_COUNTER_INCREMENT(exp, quota_adjust_qunit);
1662 rc = OBP(exp->exp_obd, quota_adjust_qunit)(exp, oqaq, qctxt, set);
1664 #if defined(LPROCFS) && defined(HAVE_QUOTA_SUPPORT)
1666 cfs_gettimeofday(&work_end);
1667 timediff = cfs_timeval_sub(&work_end, &work_start, NULL);
1668 lprocfs_counter_add(qctxt->lqc_stats, LQUOTA_ADJUST_QUNIT,
1675 static inline int obd_health_check(struct obd_device *obd)
1677 /* returns: 0 on healthy
1678 * >0 on unhealthy + reason code/flag
1679 * however the only suppored reason == 1 right now
1680 * We'll need to define some better reasons
1681 * or flags in the future.
1687 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1688 if (obd == NULL || !OBT(obd)) {
1689 CERROR("cleaned up obd\n");
1690 RETURN(-EOPNOTSUPP);
1692 if (!obd->obd_set_up || obd->obd_stopping)
1694 if (!OBP(obd, health_check))
1697 rc = OBP(obd, health_check)(obd);
1701 static inline int obd_register_observer(struct obd_device *obd,
1702 struct obd_device *observer)
1706 cfs_down_write(&obd->obd_observer_link_sem);
1707 if (obd->obd_observer && observer) {
1708 cfs_up_write(&obd->obd_observer_link_sem);
1711 obd->obd_observer = observer;
1712 cfs_up_write(&obd->obd_observer_link_sem);
1716 static inline int obd_pin_observer(struct obd_device *obd,
1717 struct obd_device **observer)
1720 cfs_down_read(&obd->obd_observer_link_sem);
1721 if (!obd->obd_observer) {
1723 cfs_up_read(&obd->obd_observer_link_sem);
1726 *observer = obd->obd_observer;
1730 static inline int obd_unpin_observer(struct obd_device *obd)
1733 cfs_up_read(&obd->obd_observer_link_sem);
1738 static inline int obd_register_page_removal_cb(struct obd_export *exp,
1739 obd_page_removal_cb_t cb,
1740 obd_pin_extent_cb pin_cb)
1745 OBD_CHECK_DT_OP(exp->exp_obd, register_page_removal_cb, 0);
1746 OBD_COUNTER_INCREMENT(exp->exp_obd, register_page_removal_cb);
1748 rc = OBP(exp->exp_obd, register_page_removal_cb)(exp, cb, pin_cb);
1752 static inline int obd_unregister_page_removal_cb(struct obd_export *exp,
1753 obd_page_removal_cb_t cb)
1758 OBD_CHECK_DT_OP(exp->exp_obd, unregister_page_removal_cb, 0);
1759 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_page_removal_cb);
1761 rc = OBP(exp->exp_obd, unregister_page_removal_cb)(exp, cb);
1765 static inline int obd_register_lock_cancel_cb(struct obd_export *exp,
1766 obd_lock_cancel_cb cb)
1771 OBD_CHECK_DT_OP(exp->exp_obd, register_lock_cancel_cb, 0);
1772 OBD_COUNTER_INCREMENT(exp->exp_obd, register_lock_cancel_cb);
1774 rc = OBP(exp->exp_obd, register_lock_cancel_cb)(exp, cb);
1778 static inline int obd_unregister_lock_cancel_cb(struct obd_export *exp,
1779 obd_lock_cancel_cb cb)
1784 OBD_CHECK_DT_OP(exp->exp_obd, unregister_lock_cancel_cb, 0);
1785 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_lock_cancel_cb);
1787 rc = OBP(exp->exp_obd, unregister_lock_cancel_cb)(exp, cb);
1792 /* metadata helpers */
1793 static inline int md_getstatus(struct obd_export *exp,
1794 struct lu_fid *fid, struct obd_capa **pc)
1799 EXP_CHECK_MD_OP(exp, getstatus);
1800 EXP_MD_COUNTER_INCREMENT(exp, getstatus);
1801 rc = MDP(exp->exp_obd, getstatus)(exp, fid, pc);
1805 static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data,
1806 struct ptlrpc_request **request)
1810 EXP_CHECK_MD_OP(exp, getattr);
1811 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1812 rc = MDP(exp->exp_obd, getattr)(exp, op_data, request);
1816 static inline int md_change_cbdata(struct obd_export *exp,
1817 const struct lu_fid *fid,
1818 ldlm_iterator_t it, void *data)
1822 EXP_CHECK_MD_OP(exp, change_cbdata);
1823 EXP_MD_COUNTER_INCREMENT(exp, change_cbdata);
1824 rc = MDP(exp->exp_obd, change_cbdata)(exp, fid, it, data);
1828 static inline int md_find_cbdata(struct obd_export *exp,
1829 const struct lu_fid *fid,
1830 ldlm_iterator_t it, void *data)
1834 EXP_CHECK_MD_OP(exp, find_cbdata);
1835 EXP_MD_COUNTER_INCREMENT(exp, find_cbdata);
1836 rc = MDP(exp->exp_obd, find_cbdata)(exp, fid, it, data);
1840 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1841 struct md_open_data *mod,
1842 struct ptlrpc_request **request)
1846 EXP_CHECK_MD_OP(exp, close);
1847 EXP_MD_COUNTER_INCREMENT(exp, close);
1848 rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
1852 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1853 const void *data, int datalen, int mode, __u32 uid,
1854 __u32 gid, cfs_cap_t cap_effective, __u64 rdev,
1855 struct ptlrpc_request **request)
1859 EXP_CHECK_MD_OP(exp, create);
1860 EXP_MD_COUNTER_INCREMENT(exp, create);
1861 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1862 uid, gid, cap_effective, rdev, request);
1866 static inline int md_done_writing(struct obd_export *exp,
1867 struct md_op_data *op_data,
1868 struct md_open_data *mod)
1872 EXP_CHECK_MD_OP(exp, done_writing);
1873 EXP_MD_COUNTER_INCREMENT(exp, done_writing);
1874 rc = MDP(exp->exp_obd, done_writing)(exp, op_data, mod);
1878 static inline int md_enqueue(struct obd_export *exp,
1879 struct ldlm_enqueue_info *einfo,
1880 struct lookup_intent *it,
1881 struct md_op_data *op_data,
1882 struct lustre_handle *lockh,
1883 void *lmm, int lmmsize,
1884 struct ptlrpc_request **req,
1885 int extra_lock_flags)
1889 EXP_CHECK_MD_OP(exp, enqueue);
1890 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1891 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, it, op_data, lockh,
1892 lmm, lmmsize, req, extra_lock_flags);
1896 static inline int md_getattr_name(struct obd_export *exp,
1897 struct md_op_data *op_data,
1898 struct ptlrpc_request **request)
1902 EXP_CHECK_MD_OP(exp, getattr_name);
1903 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1904 rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request);
1908 static inline int md_intent_lock(struct obd_export *exp,
1909 struct md_op_data *op_data, void *lmm,
1910 int lmmsize, struct lookup_intent *it,
1911 int flags, struct ptlrpc_request **reqp,
1912 ldlm_blocking_callback cb_blocking,
1913 int extra_lock_flags)
1917 EXP_CHECK_MD_OP(exp, intent_lock);
1918 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1919 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, lmm, lmmsize,
1920 it, flags, reqp, cb_blocking,
1925 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1926 struct ptlrpc_request **request)
1930 EXP_CHECK_MD_OP(exp, link);
1931 EXP_MD_COUNTER_INCREMENT(exp, link);
1932 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1936 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1937 const char *old, int oldlen, const char *new,
1938 int newlen, struct ptlrpc_request **request)
1942 EXP_CHECK_MD_OP(exp, rename);
1943 EXP_MD_COUNTER_INCREMENT(exp, rename);
1944 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
1949 static inline int md_is_subdir(struct obd_export *exp,
1950 const struct lu_fid *pfid,
1951 const struct lu_fid *cfid,
1952 struct ptlrpc_request **request)
1956 EXP_CHECK_MD_OP(exp, is_subdir);
1957 EXP_MD_COUNTER_INCREMENT(exp, is_subdir);
1958 rc = MDP(exp->exp_obd, is_subdir)(exp, pfid, cfid, request);
1962 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
1963 void *ea, int ealen, void *ea2, int ea2len,
1964 struct ptlrpc_request **request,
1965 struct md_open_data **mod)
1969 EXP_CHECK_MD_OP(exp, setattr);
1970 EXP_MD_COUNTER_INCREMENT(exp, setattr);
1971 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen,
1972 ea2, ea2len, request, mod);
1976 static inline int md_sync(struct obd_export *exp, const struct lu_fid *fid,
1977 struct obd_capa *oc, struct ptlrpc_request **request)
1981 EXP_CHECK_MD_OP(exp, sync);
1982 EXP_MD_COUNTER_INCREMENT(exp, sync);
1983 rc = MDP(exp->exp_obd, sync)(exp, fid, oc, request);
1987 static inline int md_readpage(struct obd_export *exp, const struct lu_fid *fid,
1988 struct obd_capa *oc, __u64 offset,
1990 struct ptlrpc_request **request)
1994 EXP_CHECK_MD_OP(exp, readpage);
1995 EXP_MD_COUNTER_INCREMENT(exp, readpage);
1996 rc = MDP(exp->exp_obd, readpage)(exp, fid, oc, offset, page, request);
2000 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
2001 struct ptlrpc_request **request)
2005 EXP_CHECK_MD_OP(exp, unlink);
2006 EXP_MD_COUNTER_INCREMENT(exp, unlink);
2007 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
2011 static inline int md_get_lustre_md(struct obd_export *exp,
2012 struct ptlrpc_request *req,
2013 struct obd_export *dt_exp,
2014 struct obd_export *md_exp,
2015 struct lustre_md *md)
2018 EXP_CHECK_MD_OP(exp, get_lustre_md);
2019 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
2020 RETURN(MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md));
2023 static inline int md_free_lustre_md(struct obd_export *exp,
2024 struct lustre_md *md)
2027 EXP_CHECK_MD_OP(exp, free_lustre_md);
2028 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
2029 RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md));
2032 static inline int md_setxattr(struct obd_export *exp,
2033 const struct lu_fid *fid, struct obd_capa *oc,
2034 obd_valid valid, const char *name,
2035 const char *input, int input_size,
2036 int output_size, int flags, __u32 suppgid,
2037 struct ptlrpc_request **request)
2040 EXP_CHECK_MD_OP(exp, setxattr);
2041 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
2042 RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, oc, valid, name, input,
2043 input_size, output_size, flags,
2047 static inline int md_getxattr(struct obd_export *exp,
2048 const struct lu_fid *fid, struct obd_capa *oc,
2049 obd_valid valid, const char *name,
2050 const char *input, int input_size,
2051 int output_size, int flags,
2052 struct ptlrpc_request **request)
2055 EXP_CHECK_MD_OP(exp, getxattr);
2056 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
2057 RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, oc, valid, name, input,
2058 input_size, output_size, flags,
2062 static inline int md_set_open_replay_data(struct obd_export *exp,
2063 struct obd_client_handle *och,
2064 struct ptlrpc_request *open_req)
2067 EXP_CHECK_MD_OP(exp, set_open_replay_data);
2068 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
2069 RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, open_req));
2072 static inline int md_clear_open_replay_data(struct obd_export *exp,
2073 struct obd_client_handle *och)
2076 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
2077 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
2078 RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och));
2081 static inline int md_set_lock_data(struct obd_export *exp,
2082 __u64 *lockh, void *data, __u32 *bits)
2085 EXP_CHECK_MD_OP(exp, set_lock_data);
2086 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
2087 RETURN(MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits));
2090 static inline int md_cancel_unused(struct obd_export *exp,
2091 const struct lu_fid *fid,
2092 ldlm_policy_data_t *policy,
2094 ldlm_cancel_flags_t flags,
2100 EXP_CHECK_MD_OP(exp, cancel_unused);
2101 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
2103 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
2108 static inline ldlm_mode_t md_lock_match(struct obd_export *exp, int flags,
2109 const struct lu_fid *fid,
2111 ldlm_policy_data_t *policy,
2113 struct lustre_handle *lockh)
2116 EXP_CHECK_MD_OP(exp, lock_match);
2117 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
2118 RETURN(MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
2119 policy, mode, lockh));
2122 static inline int md_init_ea_size(struct obd_export *exp, int easize,
2123 int def_asize, int cookiesize)
2126 EXP_CHECK_MD_OP(exp, init_ea_size);
2127 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
2128 RETURN(MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
2132 static inline int md_get_remote_perm(struct obd_export *exp,
2133 const struct lu_fid *fid,
2134 struct obd_capa *oc, __u32 suppgid,
2135 struct ptlrpc_request **request)
2138 EXP_CHECK_MD_OP(exp, get_remote_perm);
2139 EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm);
2140 RETURN(MDP(exp->exp_obd, get_remote_perm)(exp, fid, oc, suppgid,
2144 static inline int md_renew_capa(struct obd_export *exp, struct obd_capa *ocapa,
2149 EXP_CHECK_MD_OP(exp, renew_capa);
2150 EXP_MD_COUNTER_INCREMENT(exp, renew_capa);
2151 rc = MDP(exp->exp_obd, renew_capa)(exp, ocapa, cb);
2155 static inline int md_unpack_capa(struct obd_export *exp,
2156 struct ptlrpc_request *req,
2157 const struct req_msg_field *field,
2158 struct obd_capa **oc)
2162 EXP_CHECK_MD_OP(exp, unpack_capa);
2163 EXP_MD_COUNTER_INCREMENT(exp, unpack_capa);
2164 rc = MDP(exp->exp_obd, unpack_capa)(exp, req, field, oc);
2168 static inline int md_intent_getattr_async(struct obd_export *exp,
2169 struct md_enqueue_info *minfo,
2170 struct ldlm_enqueue_info *einfo)
2174 EXP_CHECK_MD_OP(exp, intent_getattr_async);
2175 EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
2176 rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo, einfo);
2180 static inline int md_revalidate_lock(struct obd_export *exp,
2181 struct lookup_intent *it,
2182 struct lu_fid *fid, __u32 *bits)
2186 EXP_CHECK_MD_OP(exp, revalidate_lock);
2187 EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
2188 rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits);
2193 /* OBD Metadata Support */
2195 extern int obd_init_caches(void);
2196 extern void obd_cleanup_caches(void);
2198 /* support routines */
2199 extern cfs_mem_cache_t *obdo_cachep;
2201 #define OBDO_ALLOC(ptr) \
2203 OBD_SLAB_ALLOC_PTR_GFP((ptr), obdo_cachep, CFS_ALLOC_IO); \
2206 #define OBDO_FREE(ptr) \
2208 OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
2212 static inline void obdo2fid(struct obdo *oa, struct lu_fid *fid)
2214 /* something here */
2217 static inline void fid2obdo(struct lu_fid *fid, struct obdo *oa)
2219 /* something here */
2222 /* I'm as embarrassed about this as you are.
2224 * <shaver> // XXX do not look into _superhack with remaining eye
2225 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
2226 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
2229 extern void obd_sysctl_init (void);
2230 extern void obd_sysctl_clean (void);
2233 typedef __u8 class_uuid_t[16];
2234 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
2237 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
2238 int class_add_uuid(const char *uuid, __u64 nid);
2239 int class_del_uuid (const char *uuid);
2240 void class_init_uuidlist(void);
2241 void class_exit_uuidlist(void);
2244 int mea_name2idx(struct lmv_stripe_md *mea, const char *name, int namelen);
2245 int raw_name2idx(int hashtype, int count, const char *name, int namelen);
2248 #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
2250 #endif /* __LINUX_OBD_CLASS_H */