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.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2015, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
35 #include "obd_support.h"
36 #include "lustre_import.h"
37 #include "lustre_net.h"
39 #include "lustre_lib.h"
40 #include "lustre/lustre_idl.h"
41 #include "lprocfs_status.h"
43 #define OBD_STATFS_NODELAY 0x0001 /* requests should be send without delay
44 * and resends for avoid deadlocks
46 #define OBD_STATFS_FROM_CACHE 0x0002 /* the statfs callback should not update
49 #define OBD_STATFS_PTLRPCD 0x0004 /* requests will be sent via ptlrpcd
50 * instead of a specific set. This
51 * means that we cannot rely on the set
52 * interpret routine to be called.
53 * lov_statfs_fini() must thus be called
54 * by the request interpret routine
56 #define OBD_STATFS_FOR_MDT0 0x0008 /* The statfs is only for retrieving
57 * information from MDT0.
60 /* OBD Device Declarations */
61 extern struct obd_device *obd_devs[MAX_OBD_DEVICES];
62 extern rwlock_t obd_dev_lock;
64 /* OBD Operations Declarations */
65 struct obd_device *class_exp2obd(struct obd_export *);
66 int class_handle_ioctl(unsigned int cmd, unsigned long arg);
67 int lustre_get_jobid(char *jobid);
69 struct lu_device_type;
72 extern struct list_head obd_types;
73 struct obd_export *class_conn2export(struct lustre_handle *);
74 int class_register_type(struct obd_ops *, struct md_ops *,
75 const char *nm, struct lu_device_type *ldt);
76 int class_unregister_type(const char *nm);
78 struct obd_device *class_newdev(const char *type_name, const char *name);
79 void class_release_dev(struct obd_device *obd);
81 int class_name2dev(const char *name);
82 struct obd_device *class_name2obd(const char *name);
83 int class_uuid2dev(struct obd_uuid *uuid);
84 struct obd_device *class_find_client_obd(struct obd_uuid *tgt_uuid,
86 struct obd_uuid *grp_uuid);
87 struct obd_device *class_devices_in_group(struct obd_uuid *grp_uuid,
89 struct obd_device *class_num2obd(int num);
91 int class_notify_sptlrpc_conf(const char *fsname, int namelen);
93 int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep);
95 int obd_zombie_impexp_init(void);
96 void obd_zombie_impexp_stop(void);
97 void obd_zombie_barrier(void);
99 int obd_get_request_slot(struct client_obd *cli);
100 void obd_put_request_slot(struct client_obd *cli);
101 __u32 obd_get_max_rpcs_in_flight(struct client_obd *cli);
102 int obd_set_max_rpcs_in_flight(struct client_obd *cli, __u32 max);
106 typedef int (*llog_cb_t)(const struct lu_env *, struct llog_handle *,
107 struct llog_rec_hdr *, void *);
109 int class_process_config(struct lustre_cfg *lcfg);
110 int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
111 struct lustre_cfg *lcfg, void *data);
112 struct obd_device *class_incref(struct obd_device *obd,
113 const char *scope, const void *source);
114 void class_decref(struct obd_device *obd,
115 const char *scope, const void *source);
116 int class_config_llog_handler(const struct lu_env *env,
117 struct llog_handle *handle,
118 struct llog_rec_hdr *rec, void *data);
119 int class_add_uuid(const char *uuid, __u64 nid);
122 void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars);
124 #define CFG_F_START 0x01 /* Set when we start updating from a log */
125 #define CFG_F_MARKER 0x02 /* We are within a maker */
126 #define CFG_F_SKIP 0x04 /* We should ignore this cfg command */
127 #define CFG_F_COMPAT146 0x08 /* Allow old-style logs */
128 #define CFG_F_EXCLUDE 0x10 /* OST exclusion list */
130 /* Passed as data param to class_config_parse_llog */
131 struct config_llog_instance {
134 struct super_block *cfg_sb;
135 struct obd_uuid cfg_uuid;
136 llog_cb_t cfg_callback;
137 int cfg_last_idx; /* for partial llog processing */
141 int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
142 char *name, struct config_llog_instance *cfg);
145 CONFIG_T_SPTLRPC = 1,
146 CONFIG_T_RECOVER = 2,
151 #define PARAMS_FILENAME "params"
152 #define LCTL_UPCALL "lctl"
154 /* list of active configuration logs */
155 struct config_llog_data {
156 struct ldlm_res_id cld_resid;
157 struct config_llog_instance cld_cfg;
158 struct list_head cld_list_chain;
159 atomic_t cld_refcount;
160 struct config_llog_data *cld_sptlrpc;/* depended sptlrpc log */
161 struct config_llog_data *cld_params; /* common parameters log */
162 struct config_llog_data *cld_recover;/* imperative recover log */
163 struct obd_export *cld_mgcexp;
164 struct mutex cld_lock;
166 unsigned int cld_stopping:1, /* we were told to stop
169 cld_lostlock:1; /* lock not requeued */
173 struct lustre_profile {
174 struct list_head lp_list;
180 struct lustre_profile *class_get_profile(const char *prof);
181 void class_del_profile(const char *prof);
182 void class_del_profiles(void);
184 #if LUSTRE_TRACKS_LOCK_EXP_REFS
186 void __class_export_add_lock_ref(struct obd_export *, struct ldlm_lock *);
187 void __class_export_del_lock_ref(struct obd_export *, struct ldlm_lock *);
188 extern void (*class_export_dump_hook)(struct obd_export *);
192 #define __class_export_add_lock_ref(exp, lock) do {} while (0)
193 #define __class_export_del_lock_ref(exp, lock) do {} while (0)
198 struct obd_export *class_export_get(struct obd_export *exp);
199 void class_export_put(struct obd_export *exp);
200 struct obd_export *class_new_export(struct obd_device *obddev,
201 struct obd_uuid *cluuid);
202 void class_unlink_export(struct obd_export *exp);
204 struct obd_import *class_import_get(struct obd_import *);
205 void class_import_put(struct obd_import *);
206 struct obd_import *class_new_import(struct obd_device *obd);
207 void class_destroy_import(struct obd_import *exp);
209 void class_put_type(struct obd_type *type);
210 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
211 struct obd_uuid *cluuid);
212 int class_disconnect(struct obd_export *exp);
213 void class_fail_export(struct obd_export *exp);
214 int class_manual_cleanup(struct obd_device *obd);
216 static inline void class_export_rpc_inc(struct obd_export *exp)
218 atomic_inc(&(exp)->exp_rpc_count);
219 CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n",
220 (exp), atomic_read(&(exp)->exp_rpc_count));
223 static inline void class_export_rpc_dec(struct obd_export *exp)
225 LASSERT_ATOMIC_POS(&exp->exp_rpc_count);
226 atomic_dec(&(exp)->exp_rpc_count);
227 CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n",
228 (exp), atomic_read(&(exp)->exp_rpc_count));
231 static inline struct obd_export *class_export_lock_get(struct obd_export *exp,
232 struct ldlm_lock *lock)
234 atomic_inc(&(exp)->exp_locks_count);
235 __class_export_add_lock_ref(exp, lock);
236 CDEBUG(D_INFO, "lock GETting export %p : new locks_count %d\n",
237 (exp), atomic_read(&(exp)->exp_locks_count));
238 return class_export_get(exp);
241 static inline void class_export_lock_put(struct obd_export *exp,
242 struct ldlm_lock *lock)
244 LASSERT_ATOMIC_POS(&exp->exp_locks_count);
245 atomic_dec(&(exp)->exp_locks_count);
246 __class_export_del_lock_ref(exp, lock);
247 CDEBUG(D_INFO, "lock PUTting export %p : new locks_count %d\n",
248 (exp), atomic_read(&(exp)->exp_locks_count));
249 class_export_put(exp);
252 static inline enum obd_option exp_flags_from_obd(struct obd_device *obd)
254 return ((obd->obd_fail ? OBD_OPT_FAILOVER : 0) |
255 (obd->obd_force ? OBD_OPT_FORCE : 0) |
259 static inline int lprocfs_climp_check(struct obd_device *obd)
261 down_read(&(obd)->u.cli.cl_sem);
262 if (!(obd)->u.cli.cl_import) {
263 up_read(&(obd)->u.cli.cl_sem);
272 void obdo_refresh_inode(struct inode *dst, const struct obdo *src, u32 valid);
274 void obdo_to_ioobj(const struct obdo *oa, struct obd_ioobj *ioobj);
275 void md_from_obdo(struct md_op_data *op_data, const struct obdo *oa, u32 valid);
277 #define OBT(dev) (dev)->obd_type
278 #define OBP(dev, op) (dev)->obd_type->typ_dt_ops->op
279 #define MDP(dev, op) (dev)->obd_type->typ_md_ops->op
280 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
282 /* Ensure obd_setup: used for cleanup which must be called
283 * while obd is stopping
285 static inline int obd_check_dev(struct obd_device *obd)
288 CERROR("NULL device\n");
294 /* ensure obd_setup and !obd_stopping */
295 static inline int obd_check_dev_active(struct obd_device *obd)
299 rc = obd_check_dev(obd);
302 if (!obd->obd_set_up || obd->obd_stopping) {
303 CERROR("Device %d not setup\n", obd->obd_minor);
309 #define OBD_COUNTER_OFFSET(op) \
310 ((offsetof(struct obd_ops, op) - \
311 offsetof(struct obd_ops, iocontrol)) \
312 / sizeof(((struct obd_ops *)(0))->iocontrol))
314 #define OBD_COUNTER_INCREMENT(obdx, op) \
315 if ((obdx)->obd_stats) { \
316 unsigned int coffset; \
317 coffset = (unsigned int)((obdx)->obd_cntr_base) + \
318 OBD_COUNTER_OFFSET(op); \
319 LASSERT(coffset < (obdx)->obd_stats->ls_num); \
320 lprocfs_counter_incr((obdx)->obd_stats, coffset); \
323 #define EXP_COUNTER_INCREMENT(export, op) \
324 if ((export)->exp_obd->obd_stats) { \
325 unsigned int coffset; \
326 coffset = (unsigned int)((export)->exp_obd->obd_cntr_base) + \
327 OBD_COUNTER_OFFSET(op); \
328 LASSERT(coffset < (export)->exp_obd->obd_stats->ls_num); \
329 lprocfs_counter_incr((export)->exp_obd->obd_stats, coffset); \
332 #define MD_COUNTER_OFFSET(op) \
333 ((offsetof(struct md_ops, op) - \
334 offsetof(struct md_ops, getstatus)) \
335 / sizeof(((struct md_ops *)(0))->getstatus))
337 #define MD_COUNTER_INCREMENT(obdx, op) \
338 if ((obd)->md_stats) { \
339 unsigned int coffset; \
340 coffset = (unsigned int)((obdx)->md_cntr_base) + \
341 MD_COUNTER_OFFSET(op); \
342 LASSERT(coffset < (obdx)->md_stats->ls_num); \
343 lprocfs_counter_incr((obdx)->md_stats, coffset); \
346 #define EXP_MD_COUNTER_INCREMENT(export, op) \
347 if ((export)->exp_obd->obd_stats) { \
348 unsigned int coffset; \
349 coffset = (unsigned int)((export)->exp_obd->md_cntr_base) + \
350 MD_COUNTER_OFFSET(op); \
351 LASSERT(coffset < (export)->exp_obd->md_stats->ls_num); \
352 lprocfs_counter_incr((export)->exp_obd->md_stats, coffset); \
353 if ((export)->exp_md_stats) \
354 lprocfs_counter_incr( \
355 (export)->exp_md_stats, coffset); \
358 #define EXP_CHECK_MD_OP(exp, op) \
361 CERROR("obd_" #op ": NULL export\n"); \
364 if (!(exp)->exp_obd || !OBT((exp)->exp_obd)) { \
365 CERROR("obd_" #op ": cleaned up obd\n"); \
366 return -EOPNOTSUPP; \
368 if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
369 CERROR("obd_" #op ": dev %s/%d no operation\n", \
370 (exp)->exp_obd->obd_name, \
371 (exp)->exp_obd->obd_minor); \
372 return -EOPNOTSUPP; \
376 #define OBD_CHECK_DT_OP(obd, op, err) \
378 if (!OBT(obd) || !OBP((obd), op)) { \
380 CERROR("obd_" #op ": dev %d no operation\n", \
386 #define EXP_CHECK_DT_OP(exp, op) \
389 CERROR("obd_" #op ": NULL export\n"); \
392 if (!(exp)->exp_obd || !OBT((exp)->exp_obd)) { \
393 CERROR("obd_" #op ": cleaned up obd\n"); \
394 return -EOPNOTSUPP; \
396 if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
397 CERROR("obd_" #op ": dev %d no operation\n", \
398 (exp)->exp_obd->obd_minor); \
399 return -EOPNOTSUPP; \
403 #define CTXT_CHECK_OP(ctxt, op, err) \
405 if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
407 CERROR("lop_" #op ": dev %d no operation\n", \
408 ctxt->loc_obd->obd_minor); \
413 static inline int class_devno_max(void)
415 return MAX_OBD_DEVICES;
418 static inline int obd_get_info(const struct lu_env *env,
419 struct obd_export *exp, __u32 keylen,
420 void *key, __u32 *vallen, void *val,
421 struct lov_stripe_md *lsm)
425 EXP_CHECK_DT_OP(exp, get_info);
426 EXP_COUNTER_INCREMENT(exp, get_info);
428 rc = OBP(exp->exp_obd, get_info)(env, exp, keylen, key, vallen, val,
433 static inline int obd_set_info_async(const struct lu_env *env,
434 struct obd_export *exp, u32 keylen,
435 void *key, u32 vallen, void *val,
436 struct ptlrpc_request_set *set)
440 EXP_CHECK_DT_OP(exp, set_info_async);
441 EXP_COUNTER_INCREMENT(exp, set_info_async);
443 rc = OBP(exp->exp_obd, set_info_async)(env, exp, keylen, key, vallen,
449 * obd-lu integration.
451 * Functionality is being moved into new lu_device-based layering, but some
452 * pieces of configuration process are still based on obd devices.
454 * Specifically, lu_device_type_operations::ldto_device_alloc() methods fully
455 * subsume ->o_setup() methods of obd devices they replace. The same for
456 * lu_device_operations::ldo_process_config() and ->o_process_config(). As a
457 * result, obd_setup() and obd_process_config() branch and call one XOR
460 * Yet neither lu_device_type_operations::ldto_device_fini() nor
461 * lu_device_type_operations::ldto_device_free() fully implement the
462 * functionality of ->o_precleanup() and ->o_cleanup() they override. Hence,
463 * obd_precleanup() and obd_cleanup() call both lu_device and obd operations.
466 #define DECLARE_LU_VARS(ldt, d) \
467 struct lu_device_type *ldt; \
470 static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
473 DECLARE_LU_VARS(ldt, d);
475 ldt = obd->obd_type->typ_lu;
477 struct lu_context session_ctx;
480 lu_context_init(&session_ctx, LCT_SESSION | LCT_SERVER_SESSION);
481 session_ctx.lc_thread = NULL;
482 lu_context_enter(&session_ctx);
484 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
486 env.le_ses = &session_ctx;
487 d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
497 lu_context_exit(&session_ctx);
498 lu_context_fini(&session_ctx);
501 OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
502 OBD_COUNTER_INCREMENT(obd, setup);
503 rc = OBP(obd, setup)(obd, cfg);
508 static inline int obd_precleanup(struct obd_device *obd,
509 enum obd_cleanup_stage cleanup_stage)
512 DECLARE_LU_VARS(ldt, d);
514 rc = obd_check_dev(obd);
517 ldt = obd->obd_type->typ_lu;
520 if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
523 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
525 ldt->ldt_ops->ldto_device_fini(&env, d);
530 OBD_CHECK_DT_OP(obd, precleanup, 0);
531 OBD_COUNTER_INCREMENT(obd, precleanup);
533 rc = OBP(obd, precleanup)(obd, cleanup_stage);
537 static inline int obd_cleanup(struct obd_device *obd)
540 DECLARE_LU_VARS(ldt, d);
542 rc = obd_check_dev(obd);
546 ldt = obd->obd_type->typ_lu;
551 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
553 ldt->ldt_ops->ldto_device_free(&env, d);
555 obd->obd_lu_dev = NULL;
558 OBD_CHECK_DT_OP(obd, cleanup, 0);
559 OBD_COUNTER_INCREMENT(obd, cleanup);
561 rc = OBP(obd, cleanup)(obd);
565 static inline void obd_cleanup_client_import(struct obd_device *obd)
567 /* If we set up but never connected, the
568 * client import will not have been cleaned.
570 down_write(&obd->u.cli.cl_sem);
571 if (obd->u.cli.cl_import) {
572 struct obd_import *imp;
574 imp = obd->u.cli.cl_import;
575 CDEBUG(D_CONFIG, "%s: client import never connected\n",
577 ptlrpc_invalidate_import(imp);
578 client_destroy_import(imp);
579 obd->u.cli.cl_import = NULL;
581 up_write(&obd->u.cli.cl_sem);
585 obd_process_config(struct obd_device *obd, int datalen, void *data)
588 DECLARE_LU_VARS(ldt, d);
590 rc = obd_check_dev(obd);
594 obd->obd_process_conf = 1;
595 ldt = obd->obd_type->typ_lu;
600 rc = lu_env_init(&env, ldt->ldt_ctx_tags);
602 rc = d->ld_ops->ldo_process_config(&env, d, data);
606 OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
607 rc = OBP(obd, process_config)(obd, datalen, data);
609 OBD_COUNTER_INCREMENT(obd, process_config);
610 obd->obd_process_conf = 0;
615 /* Pack an in-memory MD struct for storage on disk.
616 * Returns +ve size of packed MD (0 for free), or -ve error.
618 * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL).
619 * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed.
620 * If @*disk_tgt == NULL, it will be allocated
622 static inline int obd_packmd(struct obd_export *exp,
623 struct lov_mds_md **disk_tgt,
624 struct lov_stripe_md *mem_src)
628 EXP_CHECK_DT_OP(exp, packmd);
629 EXP_COUNTER_INCREMENT(exp, packmd);
631 rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src);
635 static inline int obd_size_diskmd(struct obd_export *exp,
636 struct lov_stripe_md *mem_src)
638 return obd_packmd(exp, NULL, mem_src);
641 static inline int obd_free_diskmd(struct obd_export *exp,
642 struct lov_mds_md **disk_tgt)
647 * LU-2590, for caller's convenience, *disk_tgt could be host
648 * endianness, it needs swab to LE if necessary, while just
649 * lov_mds_md header needs it for figuring out how much memory
652 if ((cpu_to_le32(LOV_MAGIC) != LOV_MAGIC) &&
653 (((*disk_tgt)->lmm_magic == LOV_MAGIC_V1) ||
654 ((*disk_tgt)->lmm_magic == LOV_MAGIC_V3)))
655 lustre_swab_lov_mds_md(*disk_tgt);
656 return obd_packmd(exp, disk_tgt, NULL);
659 /* Unpack an MD struct from disk to in-memory format.
660 * Returns +ve size of unpacked MD (0 for free), or -ve error.
662 * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL).
663 * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed.
664 * If @*mem_tgt == NULL, it will be allocated
666 static inline int obd_unpackmd(struct obd_export *exp,
667 struct lov_stripe_md **mem_tgt,
668 struct lov_mds_md *disk_src,
673 EXP_CHECK_DT_OP(exp, unpackmd);
674 EXP_COUNTER_INCREMENT(exp, unpackmd);
676 rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len);
680 static inline int obd_free_memmd(struct obd_export *exp,
681 struct lov_stripe_md **mem_tgt)
687 rc = obd_unpackmd(exp, mem_tgt, NULL, 0);
692 static inline int obd_create(const struct lu_env *env, struct obd_export *exp,
693 struct obdo *obdo, struct obd_trans_info *oti)
697 EXP_CHECK_DT_OP(exp, create);
698 EXP_COUNTER_INCREMENT(exp, create);
700 rc = OBP(exp->exp_obd, create)(env, exp, obdo, oti);
704 static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp,
705 struct obdo *obdo, struct obd_trans_info *oti)
709 EXP_CHECK_DT_OP(exp, destroy);
710 EXP_COUNTER_INCREMENT(exp, destroy);
712 rc = OBP(exp->exp_obd, destroy)(env, exp, obdo, oti);
716 static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp,
717 struct obd_info *oinfo)
721 EXP_CHECK_DT_OP(exp, getattr);
722 EXP_COUNTER_INCREMENT(exp, getattr);
724 rc = OBP(exp->exp_obd, getattr)(env, exp, oinfo);
728 static inline int obd_getattr_async(struct obd_export *exp,
729 struct obd_info *oinfo,
730 struct ptlrpc_request_set *set)
734 EXP_CHECK_DT_OP(exp, getattr_async);
735 EXP_COUNTER_INCREMENT(exp, getattr_async);
737 rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set);
741 static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp,
742 struct obd_info *oinfo,
743 struct obd_trans_info *oti)
747 EXP_CHECK_DT_OP(exp, setattr);
748 EXP_COUNTER_INCREMENT(exp, setattr);
750 rc = OBP(exp->exp_obd, setattr)(env, exp, oinfo, oti);
754 /* This performs all the requests set init/wait/destroy actions. */
755 static inline int obd_setattr_rqset(struct obd_export *exp,
756 struct obd_info *oinfo,
757 struct obd_trans_info *oti)
759 struct ptlrpc_request_set *set = NULL;
762 EXP_CHECK_DT_OP(exp, setattr_async);
763 EXP_COUNTER_INCREMENT(exp, setattr_async);
765 set = ptlrpc_prep_set();
769 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
771 rc = ptlrpc_set_wait(set);
772 ptlrpc_set_destroy(set);
776 /* This adds all the requests into @set if @set != NULL, otherwise
777 * all requests are sent asynchronously without waiting for response.
779 static inline int obd_setattr_async(struct obd_export *exp,
780 struct obd_info *oinfo,
781 struct obd_trans_info *oti,
782 struct ptlrpc_request_set *set)
786 EXP_CHECK_DT_OP(exp, setattr_async);
787 EXP_COUNTER_INCREMENT(exp, setattr_async);
789 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
793 static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
796 struct obd_device *obd = imp->imp_obd;
799 rc = obd_check_dev_active(obd);
802 OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
803 OBD_COUNTER_INCREMENT(obd, add_conn);
805 rc = OBP(obd, add_conn)(imp, uuid, priority);
809 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
811 struct obd_device *obd = imp->imp_obd;
814 rc = obd_check_dev_active(obd);
817 OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
818 OBD_COUNTER_INCREMENT(obd, del_conn);
820 rc = OBP(obd, del_conn)(imp, uuid);
824 static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp)
826 struct obd_uuid *uuid;
828 OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL);
829 EXP_COUNTER_INCREMENT(exp, get_uuid);
831 uuid = OBP(exp->exp_obd, get_uuid)(exp);
835 /** Create a new /a exp on device /a obd for the uuid /a cluuid
836 * @param exp New export handle
837 * @param d Connect data, supported flags are set, flags also understood
838 * by obd are returned.
840 static inline int obd_connect(const struct lu_env *env,
841 struct obd_export **exp, struct obd_device *obd,
842 struct obd_uuid *cluuid,
843 struct obd_connect_data *data,
847 __u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
851 rc = obd_check_dev_active(obd);
854 OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
855 OBD_COUNTER_INCREMENT(obd, connect);
857 rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata);
858 /* check that only subset is granted */
859 LASSERT(ergo(data, (data->ocd_connect_flags & ocf) ==
860 data->ocd_connect_flags));
864 static inline int obd_reconnect(const struct lu_env *env,
865 struct obd_export *exp,
866 struct obd_device *obd,
867 struct obd_uuid *cluuid,
868 struct obd_connect_data *d,
872 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition check */
874 rc = obd_check_dev_active(obd);
877 OBD_CHECK_DT_OP(obd, reconnect, 0);
878 OBD_COUNTER_INCREMENT(obd, reconnect);
880 rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
881 /* check that only subset is granted */
882 LASSERT(ergo(d, (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
886 static inline int obd_disconnect(struct obd_export *exp)
890 EXP_CHECK_DT_OP(exp, disconnect);
891 EXP_COUNTER_INCREMENT(exp, disconnect);
893 rc = OBP(exp->exp_obd, disconnect)(exp);
897 static inline int obd_fid_init(struct obd_device *obd, struct obd_export *exp,
898 enum lu_cli_type type)
902 OBD_CHECK_DT_OP(obd, fid_init, 0);
903 OBD_COUNTER_INCREMENT(obd, fid_init);
905 rc = OBP(obd, fid_init)(obd, exp, type);
909 static inline int obd_fid_fini(struct obd_device *obd)
913 OBD_CHECK_DT_OP(obd, fid_fini, 0);
914 OBD_COUNTER_INCREMENT(obd, fid_fini);
916 rc = OBP(obd, fid_fini)(obd);
920 static inline int obd_fid_alloc(const struct lu_env *env,
921 struct obd_export *exp,
923 struct md_op_data *op_data)
927 EXP_CHECK_DT_OP(exp, fid_alloc);
928 EXP_COUNTER_INCREMENT(exp, fid_alloc);
930 rc = OBP(exp->exp_obd, fid_alloc)(env, exp, fid, op_data);
934 static inline int obd_pool_new(struct obd_device *obd, char *poolname)
938 OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP);
939 OBD_COUNTER_INCREMENT(obd, pool_new);
941 rc = OBP(obd, pool_new)(obd, poolname);
945 static inline int obd_pool_del(struct obd_device *obd, char *poolname)
949 OBD_CHECK_DT_OP(obd, pool_del, -EOPNOTSUPP);
950 OBD_COUNTER_INCREMENT(obd, pool_del);
952 rc = OBP(obd, pool_del)(obd, poolname);
956 static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname)
960 OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP);
961 OBD_COUNTER_INCREMENT(obd, pool_add);
963 rc = OBP(obd, pool_add)(obd, poolname, ostname);
967 static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname)
971 OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP);
972 OBD_COUNTER_INCREMENT(obd, pool_rem);
974 rc = OBP(obd, pool_rem)(obd, poolname, ostname);
978 static inline void obd_getref(struct obd_device *obd)
980 if (OBT(obd) && OBP(obd, getref)) {
981 OBD_COUNTER_INCREMENT(obd, getref);
982 OBP(obd, getref)(obd);
986 static inline void obd_putref(struct obd_device *obd)
988 if (OBT(obd) && OBP(obd, putref)) {
989 OBD_COUNTER_INCREMENT(obd, putref);
990 OBP(obd, putref)(obd);
994 static inline int obd_init_export(struct obd_export *exp)
998 if ((exp)->exp_obd && OBT((exp)->exp_obd) &&
999 OBP((exp)->exp_obd, init_export))
1000 rc = OBP(exp->exp_obd, init_export)(exp);
1004 static inline int obd_destroy_export(struct obd_export *exp)
1006 if ((exp)->exp_obd && OBT((exp)->exp_obd) &&
1007 OBP((exp)->exp_obd, destroy_export))
1008 OBP(exp->exp_obd, destroy_export)(exp);
1012 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1013 * If the cache is older than @max_age we will get a new value from the
1014 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness.
1016 static inline int obd_statfs_async(struct obd_export *exp,
1017 struct obd_info *oinfo,
1019 struct ptlrpc_request_set *rqset)
1022 struct obd_device *obd;
1024 if (!exp || !exp->exp_obd)
1028 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1029 OBD_COUNTER_INCREMENT(obd, statfs);
1031 CDEBUG(D_SUPER, "%s: osfs %p age %llu, max_age %llu\n",
1032 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
1033 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1034 rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset);
1037 "%s: use %p cache blocks %llu/%llu objects %llu/%llu\n",
1038 obd->obd_name, &obd->obd_osfs,
1039 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1040 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1041 spin_lock(&obd->obd_osfs_lock);
1042 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
1043 spin_unlock(&obd->obd_osfs_lock);
1044 oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
1045 if (oinfo->oi_cb_up)
1046 oinfo->oi_cb_up(oinfo, 0);
1051 static inline int obd_statfs_rqset(struct obd_export *exp,
1052 struct obd_statfs *osfs, __u64 max_age,
1055 struct ptlrpc_request_set *set = NULL;
1056 struct obd_info oinfo = { };
1059 set = ptlrpc_prep_set();
1063 oinfo.oi_osfs = osfs;
1064 oinfo.oi_flags = flags;
1065 rc = obd_statfs_async(exp, &oinfo, max_age, set);
1067 rc = ptlrpc_set_wait(set);
1068 ptlrpc_set_destroy(set);
1072 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1073 * If the cache is older than @max_age we will get a new value from the
1074 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness.
1076 static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
1077 struct obd_statfs *osfs, __u64 max_age,
1081 struct obd_device *obd = exp->exp_obd;
1086 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1087 OBD_COUNTER_INCREMENT(obd, statfs);
1089 CDEBUG(D_SUPER, "osfs %llu, max_age %llu\n",
1090 obd->obd_osfs_age, max_age);
1091 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1092 rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
1094 spin_lock(&obd->obd_osfs_lock);
1095 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1096 obd->obd_osfs_age = cfs_time_current_64();
1097 spin_unlock(&obd->obd_osfs_lock);
1100 CDEBUG(D_SUPER, "%s: use %p cache blocks %llu/%llu objects %llu/%llu\n",
1101 obd->obd_name, &obd->obd_osfs,
1102 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1103 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1104 spin_lock(&obd->obd_osfs_lock);
1105 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1106 spin_unlock(&obd->obd_osfs_lock);
1111 static inline int obd_preprw(const struct lu_env *env, int cmd,
1112 struct obd_export *exp, struct obdo *oa,
1113 int objcount, struct obd_ioobj *obj,
1114 struct niobuf_remote *remote, int *pages,
1115 struct niobuf_local *local,
1116 struct obd_trans_info *oti)
1120 EXP_CHECK_DT_OP(exp, preprw);
1121 EXP_COUNTER_INCREMENT(exp, preprw);
1123 rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote,
1128 static inline int obd_commitrw(const struct lu_env *env, int cmd,
1129 struct obd_export *exp, struct obdo *oa,
1130 int objcount, struct obd_ioobj *obj,
1131 struct niobuf_remote *rnb, int pages,
1132 struct niobuf_local *local,
1133 struct obd_trans_info *oti, int rc)
1135 EXP_CHECK_DT_OP(exp, commitrw);
1136 EXP_COUNTER_INCREMENT(exp, commitrw);
1138 rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj,
1139 rnb, pages, local, oti, rc);
1143 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1144 int len, void *karg, void __user *uarg)
1148 EXP_CHECK_DT_OP(exp, iocontrol);
1149 EXP_COUNTER_INCREMENT(exp, iocontrol);
1151 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1155 static inline void obd_import_event(struct obd_device *obd,
1156 struct obd_import *imp,
1157 enum obd_import_event event)
1160 CERROR("NULL device\n");
1163 if (obd->obd_set_up && OBP(obd, import_event)) {
1164 OBD_COUNTER_INCREMENT(obd, import_event);
1165 OBP(obd, import_event)(obd, imp, event);
1169 static inline int obd_notify(struct obd_device *obd,
1170 struct obd_device *watched,
1171 enum obd_notify_event ev,
1176 rc = obd_check_dev(obd);
1180 if (!obd->obd_set_up) {
1181 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1185 if (!OBP(obd, notify)) {
1186 CDEBUG(D_HA, "obd %s has no notify handler\n", obd->obd_name);
1190 OBD_COUNTER_INCREMENT(obd, notify);
1191 rc = OBP(obd, notify)(obd, watched, ev, data);
1195 static inline int obd_notify_observer(struct obd_device *observer,
1196 struct obd_device *observed,
1197 enum obd_notify_event ev,
1203 struct obd_notify_upcall *onu;
1205 if (observer->obd_observer)
1206 rc1 = obd_notify(observer->obd_observer, observed, ev, data);
1210 * Also, call non-obd listener, if any
1212 onu = &observer->obd_upcall;
1213 if (onu->onu_upcall)
1214 rc2 = onu->onu_upcall(observer, observed, ev,
1215 onu->onu_owner, NULL);
1219 return rc1 ? rc1 : rc2;
1222 static inline int obd_quotacheck(struct obd_export *exp,
1223 struct obd_quotactl *oqctl)
1227 EXP_CHECK_DT_OP(exp, quotacheck);
1228 EXP_COUNTER_INCREMENT(exp, quotacheck);
1230 rc = OBP(exp->exp_obd, quotacheck)(exp->exp_obd, exp, oqctl);
1234 static inline int obd_quotactl(struct obd_export *exp,
1235 struct obd_quotactl *oqctl)
1239 EXP_CHECK_DT_OP(exp, quotactl);
1240 EXP_COUNTER_INCREMENT(exp, quotactl);
1242 rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl);
1246 static inline int obd_health_check(const struct lu_env *env,
1247 struct obd_device *obd)
1249 /* returns: 0 on healthy
1250 * >0 on unhealthy + reason code/flag
1251 * however the only supported reason == 1 right now
1252 * We'll need to define some better reasons
1253 * or flags in the future.
1258 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1259 if (!obd || !OBT(obd)) {
1260 CERROR("cleaned up obd\n");
1263 if (!obd->obd_set_up || obd->obd_stopping)
1265 if (!OBP(obd, health_check))
1268 rc = OBP(obd, health_check)(env, obd);
1272 static inline int obd_register_observer(struct obd_device *obd,
1273 struct obd_device *observer)
1277 rc = obd_check_dev(obd);
1280 down_write(&obd->obd_observer_link_sem);
1281 if (obd->obd_observer && observer) {
1282 up_write(&obd->obd_observer_link_sem);
1285 obd->obd_observer = observer;
1286 up_write(&obd->obd_observer_link_sem);
1290 /* metadata helpers */
1291 static inline int md_getstatus(struct obd_export *exp, struct lu_fid *fid)
1295 EXP_CHECK_MD_OP(exp, getstatus);
1296 EXP_MD_COUNTER_INCREMENT(exp, getstatus);
1297 rc = MDP(exp->exp_obd, getstatus)(exp, fid);
1301 static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data,
1302 struct ptlrpc_request **request)
1306 EXP_CHECK_MD_OP(exp, getattr);
1307 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1308 rc = MDP(exp->exp_obd, getattr)(exp, op_data, request);
1312 static inline int md_null_inode(struct obd_export *exp,
1313 const struct lu_fid *fid)
1317 EXP_CHECK_MD_OP(exp, null_inode);
1318 EXP_MD_COUNTER_INCREMENT(exp, null_inode);
1319 rc = MDP(exp->exp_obd, null_inode)(exp, fid);
1323 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1324 struct md_open_data *mod,
1325 struct ptlrpc_request **request)
1329 EXP_CHECK_MD_OP(exp, close);
1330 EXP_MD_COUNTER_INCREMENT(exp, close);
1331 rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
1335 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1336 const void *data, size_t datalen, umode_t mode,
1337 uid_t uid, gid_t gid, cfs_cap_t cap_effective,
1338 __u64 rdev, struct ptlrpc_request **request)
1342 EXP_CHECK_MD_OP(exp, create);
1343 EXP_MD_COUNTER_INCREMENT(exp, create);
1344 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1345 uid, gid, cap_effective, rdev, request);
1349 static inline int md_done_writing(struct obd_export *exp,
1350 struct md_op_data *op_data,
1351 struct md_open_data *mod)
1355 EXP_CHECK_MD_OP(exp, done_writing);
1356 EXP_MD_COUNTER_INCREMENT(exp, done_writing);
1357 rc = MDP(exp->exp_obd, done_writing)(exp, op_data, mod);
1361 static inline int md_enqueue(struct obd_export *exp,
1362 struct ldlm_enqueue_info *einfo,
1363 const ldlm_policy_data_t *policy,
1364 struct lookup_intent *it,
1365 struct md_op_data *op_data,
1366 struct lustre_handle *lockh,
1367 __u64 extra_lock_flags)
1371 EXP_CHECK_MD_OP(exp, enqueue);
1372 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1373 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, policy, it, op_data, lockh,
1378 static inline int md_getattr_name(struct obd_export *exp,
1379 struct md_op_data *op_data,
1380 struct ptlrpc_request **request)
1384 EXP_CHECK_MD_OP(exp, getattr_name);
1385 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1386 rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request);
1390 static inline int md_intent_lock(struct obd_export *exp,
1391 struct md_op_data *op_data,
1392 struct lookup_intent *it,
1393 struct ptlrpc_request **reqp,
1394 ldlm_blocking_callback cb_blocking,
1395 __u64 extra_lock_flags)
1399 EXP_CHECK_MD_OP(exp, intent_lock);
1400 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1401 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, it, reqp,
1402 cb_blocking, extra_lock_flags);
1406 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1407 struct ptlrpc_request **request)
1411 EXP_CHECK_MD_OP(exp, link);
1412 EXP_MD_COUNTER_INCREMENT(exp, link);
1413 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1417 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1418 const char *old, size_t oldlen, const char *new,
1419 size_t newlen, struct ptlrpc_request **request)
1423 EXP_CHECK_MD_OP(exp, rename);
1424 EXP_MD_COUNTER_INCREMENT(exp, rename);
1425 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
1430 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
1431 void *ea, size_t ealen, void *ea2, size_t ea2len,
1432 struct ptlrpc_request **request,
1433 struct md_open_data **mod)
1437 EXP_CHECK_MD_OP(exp, setattr);
1438 EXP_MD_COUNTER_INCREMENT(exp, setattr);
1439 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen,
1440 ea2, ea2len, request, mod);
1444 static inline int md_sync(struct obd_export *exp, const struct lu_fid *fid,
1445 struct ptlrpc_request **request)
1449 EXP_CHECK_MD_OP(exp, sync);
1450 EXP_MD_COUNTER_INCREMENT(exp, sync);
1451 rc = MDP(exp->exp_obd, sync)(exp, fid, request);
1455 static inline int md_read_page(struct obd_export *exp,
1456 struct md_op_data *op_data,
1457 struct md_callback *cb_op,
1459 struct page **ppage)
1463 EXP_CHECK_MD_OP(exp, read_page);
1464 EXP_MD_COUNTER_INCREMENT(exp, read_page);
1465 rc = MDP(exp->exp_obd, read_page)(exp, op_data, cb_op, hash_offset,
1470 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
1471 struct ptlrpc_request **request)
1475 EXP_CHECK_MD_OP(exp, unlink);
1476 EXP_MD_COUNTER_INCREMENT(exp, unlink);
1477 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
1481 static inline int md_get_lustre_md(struct obd_export *exp,
1482 struct ptlrpc_request *req,
1483 struct obd_export *dt_exp,
1484 struct obd_export *md_exp,
1485 struct lustre_md *md)
1487 EXP_CHECK_MD_OP(exp, get_lustre_md);
1488 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
1489 return MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md);
1492 static inline int md_free_lustre_md(struct obd_export *exp,
1493 struct lustre_md *md)
1495 EXP_CHECK_MD_OP(exp, free_lustre_md);
1496 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
1497 return MDP(exp->exp_obd, free_lustre_md)(exp, md);
1500 static inline int md_merge_attr(struct obd_export *exp,
1501 const struct lmv_stripe_md *lsm,
1502 struct cl_attr *attr,
1503 ldlm_blocking_callback cb)
1505 EXP_CHECK_MD_OP(exp, merge_attr);
1506 EXP_MD_COUNTER_INCREMENT(exp, merge_attr);
1507 return MDP(exp->exp_obd, merge_attr)(exp, lsm, attr, cb);
1510 static inline int md_setxattr(struct obd_export *exp, const struct lu_fid *fid,
1511 u64 valid, const char *name,
1512 const char *input, int input_size,
1513 int output_size, int flags, __u32 suppgid,
1514 struct ptlrpc_request **request)
1516 EXP_CHECK_MD_OP(exp, setxattr);
1517 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
1518 return MDP(exp->exp_obd, setxattr)(exp, fid, valid, name, input,
1519 input_size, output_size, flags,
1523 static inline int md_getxattr(struct obd_export *exp, const struct lu_fid *fid,
1524 u64 valid, const char *name,
1525 const char *input, int input_size,
1526 int output_size, int flags,
1527 struct ptlrpc_request **request)
1529 EXP_CHECK_MD_OP(exp, getxattr);
1530 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
1531 return MDP(exp->exp_obd, getxattr)(exp, fid, valid, name, input,
1532 input_size, output_size, flags,
1536 static inline int md_set_open_replay_data(struct obd_export *exp,
1537 struct obd_client_handle *och,
1538 struct lookup_intent *it)
1540 EXP_CHECK_MD_OP(exp, set_open_replay_data);
1541 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
1542 return MDP(exp->exp_obd, set_open_replay_data)(exp, och, it);
1545 static inline int md_clear_open_replay_data(struct obd_export *exp,
1546 struct obd_client_handle *och)
1548 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
1549 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
1550 return MDP(exp->exp_obd, clear_open_replay_data)(exp, och);
1553 static inline int md_set_lock_data(struct obd_export *exp,
1554 const struct lustre_handle *lockh,
1555 void *data, __u64 *bits)
1557 EXP_CHECK_MD_OP(exp, set_lock_data);
1558 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
1559 return MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits);
1562 static inline int md_cancel_unused(struct obd_export *exp,
1563 const struct lu_fid *fid,
1564 ldlm_policy_data_t *policy,
1565 enum ldlm_mode mode,
1566 enum ldlm_cancel_flags flags,
1571 EXP_CHECK_MD_OP(exp, cancel_unused);
1572 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
1574 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
1579 static inline enum ldlm_mode md_lock_match(struct obd_export *exp, __u64 flags,
1580 const struct lu_fid *fid,
1581 enum ldlm_type type,
1582 ldlm_policy_data_t *policy,
1583 enum ldlm_mode mode,
1584 struct lustre_handle *lockh)
1586 EXP_CHECK_MD_OP(exp, lock_match);
1587 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
1588 return MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
1589 policy, mode, lockh);
1592 static inline int md_init_ea_size(struct obd_export *exp, int easize,
1593 int def_asize, int cookiesize,
1596 EXP_CHECK_MD_OP(exp, init_ea_size);
1597 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
1598 return MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
1599 cookiesize, def_cookiesize);
1602 static inline int md_intent_getattr_async(struct obd_export *exp,
1603 struct md_enqueue_info *minfo,
1604 struct ldlm_enqueue_info *einfo)
1608 EXP_CHECK_MD_OP(exp, intent_getattr_async);
1609 EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
1610 rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo, einfo);
1614 static inline int md_revalidate_lock(struct obd_export *exp,
1615 struct lookup_intent *it,
1616 struct lu_fid *fid, __u64 *bits)
1620 EXP_CHECK_MD_OP(exp, revalidate_lock);
1621 EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
1622 rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits);
1626 static inline int md_get_fid_from_lsm(struct obd_export *exp,
1627 const struct lmv_stripe_md *lsm,
1628 const char *name, int namelen,
1633 EXP_CHECK_MD_OP(exp, get_fid_from_lsm);
1634 EXP_MD_COUNTER_INCREMENT(exp, get_fid_from_lsm);
1635 rc = MDP(exp->exp_obd, get_fid_from_lsm)(exp, lsm, name, namelen, fid);
1639 /* OBD Metadata Support */
1641 int obd_init_caches(void);
1642 void obd_cleanup_caches(void);
1644 /* support routines */
1645 extern struct kmem_cache *obdo_cachep;
1647 typedef int (*register_lwp_cb)(void *data);
1649 struct lwp_register_item {
1650 struct obd_export **lri_exp;
1651 register_lwp_cb lri_cb_func;
1653 struct list_head lri_list;
1654 char lri_name[MTI_NAME_MAXLEN];
1657 /* I'm as embarrassed about this as you are.
1659 * <shaver> // XXX do not look into _superhack with remaining eye
1660 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV
1662 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
1665 int lustre_unregister_fs(void);
1666 int lustre_register_fs(void);
1667 int lustre_check_exclusion(struct super_block *sb, char *svname);
1670 int obd_sysctl_init(void);
1673 typedef __u8 class_uuid_t[16];
1674 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
1677 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
1678 int class_add_uuid(const char *uuid, __u64 nid);
1679 int class_del_uuid(const char *uuid);
1680 int class_check_uuid(struct obd_uuid *uuid, __u64 nid);
1681 void class_init_uuidlist(void);
1682 void class_exit_uuidlist(void);
1685 extern char obd_jobid_node[];
1686 extern struct miscdevice obd_psdev;
1687 extern spinlock_t obd_types_lock;
1688 int class_procfs_init(void);
1689 int class_procfs_clean(void);
1692 #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
1696 void statfs_pack(struct obd_statfs *osfs, struct kstatfs *sfs);
1697 void statfs_unpack(struct kstatfs *sfs, struct obd_statfs *osfs);
1699 /* root squash info */
1700 struct rw_semaphore;
1701 struct root_squash_info {
1704 struct list_head rsi_nosquash_nids;
1705 struct rw_semaphore rsi_sem;
1708 #endif /* __LINUX_OBD_CLASS_H */