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 2008 Sun Microsystems, Inc. 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 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 *);
69 struct lu_device_type;
72 struct obd_export *class_conn2export(struct lustre_handle *);
73 int class_register_type(struct obd_ops *, struct md_ops *,
74 struct lprocfs_vars *, const char *nm,
75 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_uuid2obd(struct obd_uuid *uuid);
85 void class_obd_list(void);
86 struct obd_device * class_find_client_obd(struct obd_uuid *tgt_uuid,
87 const char * typ_name,
88 struct obd_uuid *grp_uuid);
89 struct obd_device * class_find_client_notype(struct obd_uuid *tgt_uuid,
90 struct obd_uuid *grp_uuid);
91 struct obd_device * class_devices_in_group(struct obd_uuid *grp_uuid,
93 struct obd_device * class_num2obd(int num);
95 int oig_init(struct obd_io_group **oig);
96 int oig_add_one(struct obd_io_group *oig, struct oig_callback_context *occ);
97 void oig_complete_one(struct obd_io_group *oig,
98 struct oig_callback_context *occ, int rc);
99 void oig_release(struct obd_io_group *oig);
100 int oig_wait(struct obd_io_group *oig);
102 char *obd_export_nid2str(struct obd_export *exp);
104 int obd_export_evict_by_nid(struct obd_device *obd, const char *nid);
105 int obd_export_evict_by_uuid(struct obd_device *obd, const char *uuid);
107 int obd_zombie_impexp_init(void);
108 void obd_zombie_impexp_stop(void);
109 void obd_zombie_impexp_cull(void);
112 int class_process_config(struct lustre_cfg *lcfg);
113 int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
114 struct lustre_cfg *lcfg, void *data);
115 int class_attach(struct lustre_cfg *lcfg);
116 int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
117 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg);
118 int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg);
119 struct obd_device *class_incref(struct obd_device *obd,
120 const char *scope, const void *source);
121 void class_decref(struct obd_device *obd,
122 const char *scope, const void *source);
126 extern void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars);
128 static inline void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars)
130 memset(lvars, 0, sizeof(*lvars));
134 #define CFG_F_START 0x01 /* Set when we start updating from a log */
135 #define CFG_F_MARKER 0x02 /* We are within a maker */
136 #define CFG_F_SKIP 0x04 /* We should ignore this cfg command */
137 #define CFG_F_COMPAT146 0x08 /* Allow old-style logs */
138 #define CFG_F_EXCLUDE 0x10 /* OST exclusion list */
140 /* Passed as data param to class_config_parse_llog */
141 struct config_llog_instance {
143 struct super_block *cfg_sb;
144 struct obd_uuid cfg_uuid;
145 int cfg_last_idx; /* for partial llog processing */
148 int class_config_parse_llog(struct llog_ctxt *ctxt, char *name,
149 struct config_llog_instance *cfg);
150 int class_config_dump_llog(struct llog_ctxt *ctxt, char *name,
151 struct config_llog_instance *cfg);
153 /* list of active configuration logs */
154 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 obd_export *cld_mgcexp;
161 unsigned int cld_stopping:1, /* we were told to stop watching */
162 cld_lostlock:1; /* lock not requeued */
165 struct lustre_profile {
166 struct list_head lp_list;
172 struct lustre_profile *class_get_profile(const char * prof);
173 void class_del_profile(const char *prof);
174 void class_del_profiles(void);
176 #define class_export_rpc_get(exp) \
178 atomic_inc(&(exp)->exp_rpc_count); \
179 CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \
180 (exp), atomic_read(&(exp)->exp_rpc_count)); \
181 class_export_get(exp); \
184 #define class_export_rpc_put(exp) \
186 atomic_dec(&(exp)->exp_rpc_count); \
187 CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \
188 (exp), atomic_read(&(exp)->exp_rpc_count)); \
189 class_export_put(exp); \
193 struct obd_export *class_export_get(struct obd_export *exp);
194 void class_export_put(struct obd_export *exp);
195 struct obd_export *class_new_export(struct obd_device *obddev,
196 struct obd_uuid *cluuid);
197 void class_unlink_export(struct obd_export *exp);
199 struct obd_import *class_import_get(struct obd_import *);
200 void class_import_put(struct obd_import *);
201 struct obd_import *class_new_import(struct obd_device *obd);
202 void class_destroy_import(struct obd_import *exp);
204 struct obd_type *class_search_type(const char *name);
205 struct obd_type *class_get_type(const char *name);
206 void class_put_type(struct obd_type *type);
207 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
208 struct obd_uuid *cluuid);
209 int class_disconnect(struct obd_export *exp);
210 void class_fail_export(struct obd_export *exp);
211 void class_disconnect_exports(struct obd_device *obddev);
212 int class_disconnect_stale_exports(struct obd_device *,
213 int (*test_export)(struct obd_export *));
214 int class_manual_cleanup(struct obd_device *obd);
216 void obdo_cpy_md(struct obdo *dst, struct obdo *src, obd_flag valid);
217 void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj);
218 void obdo_from_iattr(struct obdo *oa, struct iattr *attr,
219 unsigned int ia_valid);
220 void iattr_from_obdo(struct iattr *attr, struct obdo *oa, obd_flag valid);
221 void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, obd_flag valid);
222 void obdo_from_md(struct obdo *oa, struct md_op_data *op_data,
225 #define OBT(dev) (dev)->obd_type
226 #define OBP(dev, op) (dev)->obd_type->typ_dt_ops->o_ ## op
227 #define MDP(dev, op) (dev)->obd_type->typ_md_ops->m_ ## op
228 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
230 /* Ensure obd_setup: used for cleanup which must be called
231 while obd is stopping */
232 #define OBD_CHECK_DEV(obd) \
235 CERROR("NULL device\n"); \
240 /* ensure obd_setup and !obd_stopping */
241 #define OBD_CHECK_DEV_ACTIVE(obd) \
243 OBD_CHECK_DEV(obd); \
244 if (!(obd)->obd_set_up || (obd)->obd_stopping) { \
245 CERROR("Device %d not setup\n", \
253 #define OBD_COUNTER_OFFSET(op) \
254 ((offsetof(struct obd_ops, o_ ## op) - \
255 offsetof(struct obd_ops, o_iocontrol)) \
256 / sizeof(((struct obd_ops *)(0))->o_iocontrol))
258 #define OBD_COUNTER_INCREMENT(obdx, op) \
259 if ((obdx)->obd_stats != NULL) { \
260 unsigned int coffset; \
261 coffset = (unsigned int)((obdx)->obd_cntr_base) + \
262 OBD_COUNTER_OFFSET(op); \
263 LASSERT(coffset < (obdx)->obd_stats->ls_num); \
264 lprocfs_counter_incr((obdx)->obd_stats, coffset); \
267 #define EXP_COUNTER_INCREMENT(export, op) \
268 if ((export)->exp_obd->obd_stats != NULL) { \
269 unsigned int coffset; \
270 coffset = (unsigned int)((export)->exp_obd->obd_cntr_base) + \
271 OBD_COUNTER_OFFSET(op); \
272 LASSERT(coffset < (export)->exp_obd->obd_stats->ls_num); \
273 lprocfs_counter_incr((export)->exp_obd->obd_stats, coffset); \
274 if ((export)->exp_nid_stats != NULL && \
275 (export)->exp_nid_stats->nid_stats != NULL) \
276 lprocfs_counter_incr( \
277 (export)->exp_nid_stats->nid_stats, coffset);\
280 #define MD_COUNTER_OFFSET(op) \
281 ((offsetof(struct md_ops, m_ ## op) - \
282 offsetof(struct md_ops, m_getstatus)) \
283 / sizeof(((struct md_ops *)(0))->m_getstatus))
285 #define MD_COUNTER_INCREMENT(obdx, op) \
286 if ((obd)->md_stats != NULL) { \
287 unsigned int coffset; \
288 coffset = (unsigned int)((obdx)->md_cntr_base) + \
289 MD_COUNTER_OFFSET(op); \
290 LASSERT(coffset < (obdx)->md_stats->ls_num); \
291 lprocfs_counter_incr((obdx)->md_stats, coffset); \
294 #define EXP_MD_COUNTER_INCREMENT(export, op) \
295 if ((export)->exp_obd->obd_stats != NULL) { \
296 unsigned int coffset; \
297 coffset = (unsigned int)((export)->exp_obd->md_cntr_base) + \
298 MD_COUNTER_OFFSET(op); \
299 LASSERT(coffset < (export)->exp_obd->md_stats->ls_num); \
300 lprocfs_counter_incr((export)->exp_obd->md_stats, coffset); \
301 if ((export)->exp_md_stats != NULL) \
302 lprocfs_counter_incr( \
303 (export)->exp_md_stats, coffset); \
307 #define OBD_COUNTER_OFFSET(op)
308 #define OBD_COUNTER_INCREMENT(obd, op)
309 #define EXP_COUNTER_INCREMENT(exp, op)
310 #define MD_COUNTER_INCREMENT(obd, op)
311 #define EXP_MD_COUNTER_INCREMENT(exp, op)
314 #define OBD_CHECK_MD_OP(obd, op, err) \
316 if (!OBT(obd) || !MDP((obd), op)) { \
318 CERROR("md_" #op ": dev %s/%d no operation\n", \
319 obd->obd_name, obd->obd_minor); \
324 #define EXP_CHECK_MD_OP(exp, op) \
326 if ((exp) == NULL) { \
327 CERROR("obd_" #op ": NULL export\n"); \
330 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
331 CERROR("obd_" #op ": cleaned up obd\n"); \
332 RETURN(-EOPNOTSUPP); \
334 if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
335 CERROR("obd_" #op ": dev %s/%d no operation\n", \
336 (exp)->exp_obd->obd_name, \
337 (exp)->exp_obd->obd_minor); \
338 RETURN(-EOPNOTSUPP); \
343 #define OBD_CHECK_DT_OP(obd, op, err) \
345 if (!OBT(obd) || !OBP((obd), op)) { \
347 CERROR("obd_" #op ": dev %d no operation\n", \
353 #define EXP_CHECK_DT_OP(exp, op) \
355 if ((exp) == NULL) { \
356 CERROR("obd_" #op ": NULL export\n"); \
359 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
360 CERROR("obd_" #op ": cleaned up obd\n"); \
361 RETURN(-EOPNOTSUPP); \
363 if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
364 CERROR("obd_" #op ": dev %d no operation\n", \
365 (exp)->exp_obd->obd_minor); \
366 RETURN(-EOPNOTSUPP); \
370 #define CTXT_CHECK_OP(ctxt, op, err) \
372 if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
374 CERROR("lop_" #op ": dev %d no operation\n", \
375 ctxt->loc_obd->obd_minor); \
380 static inline int class_devno_max(void)
382 return MAX_OBD_DEVICES;
385 static inline int obd_get_info(struct obd_export *exp, __u32 keylen,
386 void *key, __u32 *vallen, void *val,
387 struct lov_stripe_md *lsm)
392 EXP_CHECK_DT_OP(exp, get_info);
393 EXP_COUNTER_INCREMENT(exp, get_info);
395 rc = OBP(exp->exp_obd, get_info)(exp, keylen, key, vallen, val, lsm);
399 static inline int obd_set_info_async(struct obd_export *exp, obd_count keylen,
400 void *key, obd_count vallen, void *val,
401 struct ptlrpc_request_set *set)
406 EXP_CHECK_DT_OP(exp, set_info_async);
407 EXP_COUNTER_INCREMENT(exp, set_info_async);
409 rc = OBP(exp->exp_obd, set_info_async)(exp, keylen, key, vallen, val,
415 #define DECLARE_LU_VARS(ldt, d) \
416 struct lu_device_type *ldt; \
419 #define DECLARE_LU_VARS(ldt, d) \
420 extern void __placeholder_to_put_a_semicolon(void)
422 static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
425 DECLARE_LU_VARS(ldt, d);
429 ldt = obd->obd_type->typ_lu;
433 rc = lu_env_init(&env, NULL, ldt->ldt_ctx_tags);
435 d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
447 OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
448 OBD_COUNTER_INCREMENT(obd, setup);
449 rc = OBP(obd, setup)(obd, cfg);
454 static inline int obd_precleanup(struct obd_device *obd,
455 enum obd_cleanup_stage cleanup_stage)
458 DECLARE_LU_VARS(ldt, d);
463 ldt = obd->obd_type->typ_lu;
465 if (ldt != NULL && d != NULL) {
466 if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
469 rc = lu_env_init(&env, NULL, ldt->ldt_ctx_tags);
471 ldt->ldt_ops->ldto_device_fini(&env, d);
480 OBD_CHECK_DT_OP(obd, precleanup, 0);
481 rc = OBP(obd, precleanup)(obd, cleanup_stage);
484 OBD_COUNTER_INCREMENT(obd, precleanup);
488 static inline int obd_cleanup(struct obd_device *obd)
491 DECLARE_LU_VARS(ldt, d);
497 ldt = obd->obd_type->typ_lu;
499 if (ldt != NULL && d != NULL) {
502 rc = lu_env_init(&env, NULL, ldt->ldt_ctx_tags);
504 ldt->ldt_ops->ldto_device_free(&env, d);
506 obd->obd_lu_dev = NULL;
511 OBD_CHECK_DT_OP(obd, cleanup, 0);
512 rc = OBP(obd, cleanup)(obd);
514 OBD_COUNTER_INCREMENT(obd, cleanup);
519 obd_process_config(struct obd_device *obd, int datalen, void *data)
522 DECLARE_LU_VARS(ldt, d);
528 ldt = obd->obd_type->typ_lu;
530 if (ldt != NULL && d != NULL) {
533 rc = lu_env_init(&env, NULL, ldt->ldt_ctx_tags);
535 rc = d->ld_ops->ldo_process_config(&env, d, data);
541 OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
542 rc = OBP(obd, process_config)(obd, datalen, data);
544 OBD_COUNTER_INCREMENT(obd, process_config);
549 /* Pack an in-memory MD struct for storage on disk.
550 * Returns +ve size of packed MD (0 for free), or -ve error.
552 * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL).
553 * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed.
554 * If @*disk_tgt == NULL, it will be allocated
556 static inline int obd_packmd(struct obd_export *exp,
557 struct lov_mds_md **disk_tgt,
558 struct lov_stripe_md *mem_src)
563 EXP_CHECK_DT_OP(exp, packmd);
564 EXP_COUNTER_INCREMENT(exp, packmd);
566 rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src);
570 static inline int obd_size_diskmd(struct obd_export *exp,
571 struct lov_stripe_md *mem_src)
573 return obd_packmd(exp, NULL, mem_src);
576 /* helper functions */
577 static inline int obd_alloc_diskmd(struct obd_export *exp,
578 struct lov_mds_md **disk_tgt)
581 LASSERT(*disk_tgt == NULL);
582 return obd_packmd(exp, disk_tgt, NULL);
585 static inline int obd_free_diskmd(struct obd_export *exp,
586 struct lov_mds_md **disk_tgt)
590 return obd_packmd(exp, disk_tgt, NULL);
593 /* Unpack an MD struct from disk to in-memory format.
594 * Returns +ve size of unpacked MD (0 for free), or -ve error.
596 * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL).
597 * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed.
598 * If @*mem_tgt == NULL, it will be allocated
600 static inline int obd_unpackmd(struct obd_export *exp,
601 struct lov_stripe_md **mem_tgt,
602 struct lov_mds_md *disk_src,
608 EXP_CHECK_DT_OP(exp, unpackmd);
609 EXP_COUNTER_INCREMENT(exp, unpackmd);
611 rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len);
615 /* helper functions */
616 static inline int obd_alloc_memmd(struct obd_export *exp,
617 struct lov_stripe_md **mem_tgt)
620 LASSERT(*mem_tgt == NULL);
621 return obd_unpackmd(exp, mem_tgt, NULL, 0);
624 static inline int obd_free_memmd(struct obd_export *exp,
625 struct lov_stripe_md **mem_tgt)
629 return obd_unpackmd(exp, mem_tgt, NULL, 0);
632 static inline int obd_checkmd(struct obd_export *exp,
633 struct obd_export *md_exp,
634 struct lov_stripe_md *mem_tgt)
639 EXP_CHECK_DT_OP(exp, checkmd);
640 EXP_COUNTER_INCREMENT(exp, checkmd);
642 rc = OBP(exp->exp_obd, checkmd)(exp, md_exp, mem_tgt);
646 static inline int obd_precreate(struct obd_export *exp)
651 EXP_CHECK_DT_OP(exp, precreate);
652 OBD_COUNTER_INCREMENT(exp->exp_obd, precreate);
654 rc = OBP(exp->exp_obd, precreate)(exp);
658 static inline int obd_create(struct obd_export *exp, struct obdo *obdo,
659 struct lov_stripe_md **ea,
660 struct obd_trans_info *oti)
665 EXP_CHECK_DT_OP(exp, create);
666 EXP_COUNTER_INCREMENT(exp, create);
668 rc = OBP(exp->exp_obd, create)(exp, obdo, ea, oti);
672 static inline int obd_destroy(struct obd_export *exp, struct obdo *obdo,
673 struct lov_stripe_md *ea,
674 struct obd_trans_info *oti,
675 struct obd_export *md_exp)
680 EXP_CHECK_DT_OP(exp, destroy);
681 EXP_COUNTER_INCREMENT(exp, destroy);
683 rc = OBP(exp->exp_obd, destroy)(exp, obdo, ea, oti, md_exp);
687 static inline int obd_getattr(struct obd_export *exp, struct obd_info *oinfo)
692 EXP_CHECK_DT_OP(exp, getattr);
693 EXP_COUNTER_INCREMENT(exp, getattr);
695 rc = OBP(exp->exp_obd, getattr)(exp, oinfo);
699 static inline int obd_getattr_async(struct obd_export *exp,
700 struct obd_info *oinfo,
701 struct ptlrpc_request_set *set)
706 EXP_CHECK_DT_OP(exp, getattr_async);
707 EXP_COUNTER_INCREMENT(exp, getattr_async);
709 rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set);
713 static inline int obd_setattr(struct obd_export *exp, struct obd_info *oinfo,
714 struct obd_trans_info *oti)
719 EXP_CHECK_DT_OP(exp, setattr);
720 EXP_COUNTER_INCREMENT(exp, setattr);
722 rc = OBP(exp->exp_obd, setattr)(exp, oinfo, oti);
726 /* This performs all the requests set init/wait/destroy actions. */
727 static inline int obd_setattr_rqset(struct obd_export *exp,
728 struct obd_info *oinfo,
729 struct obd_trans_info *oti)
731 struct ptlrpc_request_set *set = NULL;
735 EXP_CHECK_DT_OP(exp, setattr_async);
736 EXP_COUNTER_INCREMENT(exp, setattr_async);
738 set = ptlrpc_prep_set();
742 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
744 rc = ptlrpc_set_wait(set);
745 ptlrpc_set_destroy(set);
749 /* This adds all the requests into @set if @set != NULL, otherwise
750 all requests are sent asynchronously without waiting for response. */
751 static inline int obd_setattr_async(struct obd_export *exp,
752 struct obd_info *oinfo,
753 struct obd_trans_info *oti,
754 struct ptlrpc_request_set *set)
759 EXP_CHECK_DT_OP(exp, setattr_async);
760 EXP_COUNTER_INCREMENT(exp, setattr_async);
762 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
766 static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
769 struct obd_device *obd = imp->imp_obd;
773 OBD_CHECK_DEV_ACTIVE(obd);
774 OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
775 OBD_COUNTER_INCREMENT(obd, add_conn);
777 rc = OBP(obd, add_conn)(imp, uuid, priority);
781 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
783 struct obd_device *obd = imp->imp_obd;
787 OBD_CHECK_DEV_ACTIVE(obd);
788 OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
789 OBD_COUNTER_INCREMENT(obd, del_conn);
791 rc = OBP(obd, del_conn)(imp, uuid);
795 static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp)
797 struct obd_uuid *uuid;
800 OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL);
801 EXP_COUNTER_INCREMENT(exp, get_uuid);
803 uuid = OBP(exp->exp_obd, get_uuid)(exp);
807 static inline int obd_connect(const struct lu_env *env,
808 struct lustre_handle *conn,struct obd_device *obd,
809 struct obd_uuid *cluuid,
810 struct obd_connect_data *d,
815 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
820 OBD_CHECK_DEV_ACTIVE(obd);
821 OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
822 OBD_COUNTER_INCREMENT(obd, connect);
824 rc = OBP(obd, connect)(env, conn, obd, cluuid, d, localdata);
825 /* check that only subset is granted */
826 LASSERT(ergo(d != NULL,
827 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
831 static inline int obd_reconnect(const struct lu_env *env,
832 struct obd_export *exp,
833 struct obd_device *obd,
834 struct obd_uuid *cluuid,
835 struct obd_connect_data *d,
840 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
846 OBD_CHECK_DEV_ACTIVE(obd);
847 OBD_CHECK_DT_OP(obd, reconnect, 0);
848 OBD_COUNTER_INCREMENT(obd, reconnect);
850 rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
851 /* check that only subset is granted */
852 LASSERT(ergo(d != NULL,
853 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
857 static inline int obd_disconnect(struct obd_export *exp)
862 EXP_CHECK_DT_OP(exp, disconnect);
863 EXP_COUNTER_INCREMENT(exp, disconnect);
865 rc = OBP(exp->exp_obd, disconnect)(exp);
869 static inline int obd_fid_init(struct obd_export *exp)
874 OBD_CHECK_DT_OP(exp->exp_obd, fid_init, 0);
875 EXP_COUNTER_INCREMENT(exp, fid_init);
877 rc = OBP(exp->exp_obd, fid_init)(exp);
881 static inline int obd_fid_fini(struct obd_export *exp)
886 OBD_CHECK_DT_OP(exp->exp_obd, fid_fini, 0);
887 EXP_COUNTER_INCREMENT(exp, fid_fini);
889 rc = OBP(exp->exp_obd, fid_fini)(exp);
893 static inline int obd_fid_alloc(struct obd_export *exp,
895 struct md_op_data *op_data)
900 EXP_CHECK_DT_OP(exp, fid_alloc);
901 EXP_COUNTER_INCREMENT(exp, fid_alloc);
903 rc = OBP(exp->exp_obd, fid_alloc)(exp, fid, op_data);
907 static inline int obd_fid_delete(struct obd_export *exp,
908 const struct lu_fid *fid)
913 EXP_CHECK_DT_OP(exp, fid_delete);
914 EXP_COUNTER_INCREMENT(exp, fid_delete);
916 rc = OBP(exp->exp_obd, fid_delete)(exp, fid);
920 static inline int obd_ping(struct obd_export *exp)
925 OBD_CHECK_DT_OP(exp->exp_obd, ping, 0);
926 EXP_COUNTER_INCREMENT(exp, ping);
928 rc = OBP(exp->exp_obd, ping)(exp);
932 static inline int obd_pool_new(struct obd_device *obd, char *poolname)
937 OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP);
938 OBD_COUNTER_INCREMENT(obd, pool_new);
940 rc = OBP(obd, pool_new)(obd, poolname);
944 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)
961 OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP);
962 OBD_COUNTER_INCREMENT(obd, pool_add);
964 rc = OBP(obd, pool_add)(obd, poolname, ostname);
968 static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname)
973 OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP);
974 OBD_COUNTER_INCREMENT(obd, pool_rem);
976 rc = OBP(obd, pool_rem)(obd, poolname, ostname);
980 static inline int obd_init_export(struct obd_export *exp)
985 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
986 OBP((exp)->exp_obd, init_export))
987 rc = OBP(exp->exp_obd, init_export)(exp);
991 static inline int obd_destroy_export(struct obd_export *exp)
994 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
995 OBP((exp)->exp_obd, destroy_export))
996 OBP(exp->exp_obd, destroy_export)(exp);
1000 static inline int obd_extent_calc(struct obd_export *exp,
1001 struct lov_stripe_md *md,
1002 int cmd, obd_off *offset)
1006 EXP_CHECK_DT_OP(exp, extent_calc);
1007 rc = OBP(exp->exp_obd, extent_calc)(exp, md, cmd, offset);
1011 static inline struct dentry *
1012 obd_lvfs_fid2dentry(struct obd_export *exp, __u64 id_ino, __u32 gen, __u64 gr)
1014 LASSERT(exp->exp_obd);
1016 return lvfs_fid2dentry(&exp->exp_obd->obd_lvfs_ctxt, id_ino, gen, gr,
1021 obd_lvfs_open_llog(struct obd_export *exp, __u64 id_ino, struct dentry *dentry)
1023 LASSERT(exp->exp_obd);
1024 CERROR("FIXME what's the story here? This needs to be an obd fn?\n");
1026 return lvfs_open_llog(&exp->exp_obd->obd_lvfs_ctxt, id_ino,
1027 dentry, exp->exp_obd);
1033 #define time_before(t1, t2) ((long)t2 - (long)t1 > 0)
1036 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1037 * If the cache is older than @max_age we will get a new value from the
1038 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1039 static inline int obd_statfs_async(struct obd_device *obd,
1040 struct obd_info *oinfo,
1042 struct ptlrpc_request_set *rqset)
1050 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1051 OBD_COUNTER_INCREMENT(obd, statfs);
1053 CDEBUG(D_SUPER, "%s: osfs %p age "LPU64", max_age "LPU64"\n",
1054 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
1055 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1056 rc = OBP(obd, statfs_async)(obd, oinfo, max_age, rqset);
1058 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1059 " objects "LPU64"/"LPU64"\n",
1060 obd->obd_name, &obd->obd_osfs,
1061 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1062 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1063 spin_lock(&obd->obd_osfs_lock);
1064 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
1065 spin_unlock(&obd->obd_osfs_lock);
1066 oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
1067 if (oinfo->oi_cb_up)
1068 oinfo->oi_cb_up(oinfo, 0);
1073 static inline int obd_statfs_rqset(struct obd_device *obd,
1074 struct obd_statfs *osfs, __u64 max_age,
1077 struct ptlrpc_request_set *set = NULL;
1078 struct obd_info oinfo = { { { 0 } } };
1082 set = ptlrpc_prep_set();
1086 oinfo.oi_osfs = osfs;
1087 oinfo.oi_flags = flags;
1088 rc = obd_statfs_async(obd, &oinfo, max_age, set);
1090 rc = ptlrpc_set_wait(set);
1091 ptlrpc_set_destroy(set);
1095 /* @max_age is the oldest time in jiffies that we accept using a cached data.
1096 * If the cache is older than @max_age we will get a new value from the
1097 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
1098 static inline int obd_statfs(struct obd_device *obd, struct obd_statfs *osfs,
1099 __u64 max_age, __u32 flags)
1107 OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
1108 OBD_COUNTER_INCREMENT(obd, statfs);
1110 CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n",
1111 obd->obd_osfs_age, max_age);
1112 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
1113 rc = OBP(obd, statfs)(obd, osfs, max_age, flags);
1115 spin_lock(&obd->obd_osfs_lock);
1116 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
1117 obd->obd_osfs_age = cfs_time_current_64();
1118 spin_unlock(&obd->obd_osfs_lock);
1121 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
1122 " objects "LPU64"/"LPU64"\n",
1123 obd->obd_name, &obd->obd_osfs,
1124 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
1125 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
1126 spin_lock(&obd->obd_osfs_lock);
1127 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
1128 spin_unlock(&obd->obd_osfs_lock);
1133 static inline int obd_sync(struct obd_export *exp, struct obdo *oa,
1134 struct lov_stripe_md *ea, obd_size start,
1135 obd_size end, void *capa)
1140 OBD_CHECK_DT_OP(exp->exp_obd, sync, -EOPNOTSUPP);
1141 EXP_COUNTER_INCREMENT(exp, sync);
1143 rc = OBP(exp->exp_obd, sync)(exp, oa, ea, start, end, capa);
1147 static inline int obd_punch_rqset(struct obd_export *exp,
1148 struct obd_info *oinfo,
1149 struct obd_trans_info *oti)
1151 struct ptlrpc_request_set *set = NULL;
1155 EXP_CHECK_DT_OP(exp, punch);
1156 EXP_COUNTER_INCREMENT(exp, punch);
1158 set = ptlrpc_prep_set();
1162 rc = OBP(exp->exp_obd, punch)(exp, oinfo, oti, set);
1164 rc = ptlrpc_set_wait(set);
1165 ptlrpc_set_destroy(set);
1169 static inline int obd_punch(struct obd_export *exp, struct obd_info *oinfo,
1170 struct obd_trans_info *oti,
1171 struct ptlrpc_request_set *rqset)
1176 EXP_CHECK_DT_OP(exp, punch);
1177 EXP_COUNTER_INCREMENT(exp, punch);
1179 rc = OBP(exp->exp_obd, punch)(exp, oinfo, oti, rqset);
1183 static inline int obd_brw(int cmd, struct obd_export *exp,
1184 struct obd_info *oinfo, obd_count oa_bufs,
1185 struct brw_page *pg, struct obd_trans_info *oti)
1190 EXP_CHECK_DT_OP(exp, brw);
1191 EXP_COUNTER_INCREMENT(exp, brw);
1193 if (!(cmd & (OBD_BRW_RWMASK | OBD_BRW_CHECK))) {
1194 CERROR("obd_brw: cmd must be OBD_BRW_READ, OBD_BRW_WRITE, "
1195 "or OBD_BRW_CHECK\n");
1199 rc = OBP(exp->exp_obd, brw)(cmd, exp, oinfo, oa_bufs, pg, oti);
1203 static inline int obd_brw_async(int cmd, struct obd_export *exp,
1204 struct obd_info *oinfo, obd_count oa_bufs,
1205 struct brw_page *pg, struct obd_trans_info *oti,
1206 struct ptlrpc_request_set *set)
1211 EXP_CHECK_DT_OP(exp, brw_async);
1212 EXP_COUNTER_INCREMENT(exp, brw_async);
1214 if (!(cmd & OBD_BRW_RWMASK)) {
1215 CERROR("obd_brw: cmd must be OBD_BRW_READ or OBD_BRW_WRITE\n");
1219 rc = OBP(exp->exp_obd, brw_async)(cmd, exp, oinfo, oa_bufs, pg,oti,set);
1223 static inline int obd_brw_rqset(int cmd, struct obd_export *exp,
1224 struct obdo *oa, struct lov_stripe_md *lsm,
1225 obd_count oa_bufs, struct brw_page *pg,
1226 struct obd_trans_info *oti,
1227 struct obd_capa *ocapa)
1229 struct ptlrpc_request_set *set = NULL;
1230 struct obd_info oinfo = { { { 0 } } };
1234 set = ptlrpc_prep_set();
1240 oinfo.oi_capa = ocapa;
1241 rc = obd_brw_async(cmd, exp, &oinfo, oa_bufs, pg, oti, set);
1243 rc = ptlrpc_set_wait(set);
1245 CERROR("error from callback: rc = %d\n", rc);
1247 CDEBUG(rc == -ENOSPC ? D_INODE : D_ERROR,
1248 "error from obd_brw_async: rc = %d\n", rc);
1250 ptlrpc_set_destroy(set);
1254 static inline int obd_prep_async_page(struct obd_export *exp,
1255 struct lov_stripe_md *lsm,
1256 struct lov_oinfo *loi,
1257 cfs_page_t *page, obd_off offset,
1258 struct obd_async_page_ops *ops,
1259 void *data, void **res, int nocache,
1260 struct lustre_handle *lockh)
1265 EXP_CHECK_DT_OP(exp, prep_async_page);
1266 EXP_COUNTER_INCREMENT(exp, prep_async_page);
1268 ret = OBP(exp->exp_obd, prep_async_page)(exp, lsm, loi, page, offset,
1269 ops, data, res, nocache,
1275 * Checks if requested extent lock is compatible with a lock under the page.
1277 * Checks if the lock under \a page is compatible with a read or write lock
1278 * (specified by \a rw) for an extent [\a start , \a end].
1280 * \param exp obd export (lov or osc)
1281 * \param lsm striping information for the file
1282 * \param res async_page placeholder
1283 * \param rw OBD_BRW_READ if requested for reading,
1284 * OBD_BRW_WRITE if requested for writing
1285 * \param start start of the requested extent
1286 * \param end end of the requested extent
1287 * \param cookie transparent parameter for passing locking context
1289 * \post result == 1, *cookie == context, appropriate lock is referenced or
1291 * \retval 1 owned lock is reused for the request
1292 * \retval 0 no lock reused for the request
1293 * \retval -ENOTSUPP reget_short_lock is not exported at this layer
1295 * \see obd_release_short_lock
1297 static inline int obd_reget_short_lock(struct obd_export *exp,
1298 struct lov_stripe_md *lsm,
1300 obd_off start, obd_off end,
1305 EXP_CHECK_DT_OP(exp, reget_short_lock);
1306 EXP_COUNTER_INCREMENT(exp, reget_short_lock);
1308 RETURN(OBP(exp->exp_obd, reget_short_lock)(exp, lsm, res, rw,
1309 start, end, cookie));
1314 * Releases a reference to a lock taken in a "fast" way.
1316 * Releases a read or write (specified by \a rw) lock
1317 * referenced by \a cookie.
1319 * \param exp obd export (lov or osc)
1320 * \param lsm striping information for the file
1321 * \param end end of the locked extent
1322 * \param rw OBD_BRW_READ if requested for reading,
1323 * OBD_BRW_WRITE if requested for writing
1324 * \param cookie transparent parameter for passing locking context
1326 * \post appropriate lock is dereferenced
1328 * \see obd_reget_short_lock
1330 static inline int obd_release_short_lock(struct obd_export *exp,
1331 struct lov_stripe_md *lsm, obd_off end,
1332 void *cookie, int rw)
1336 EXP_CHECK_DT_OP(exp, release_short_lock);
1337 EXP_COUNTER_INCREMENT(exp, release_short_lock);
1339 RETURN(OBP(exp->exp_obd, release_short_lock)(exp, lsm, end,
1343 static inline int obd_queue_async_io(struct obd_export *exp,
1344 struct lov_stripe_md *lsm,
1345 struct lov_oinfo *loi, void *cookie,
1346 int cmd, obd_off off, int count,
1347 obd_flag brw_flags, obd_flag async_flags)
1352 EXP_CHECK_DT_OP(exp, queue_async_io);
1353 EXP_COUNTER_INCREMENT(exp, queue_async_io);
1354 LASSERT(cmd & OBD_BRW_RWMASK);
1356 rc = OBP(exp->exp_obd, queue_async_io)(exp, lsm, loi, cookie, cmd, off,
1357 count, brw_flags, async_flags);
1361 static inline int obd_set_async_flags(struct obd_export *exp,
1362 struct lov_stripe_md *lsm,
1363 struct lov_oinfo *loi, void *cookie,
1364 obd_flag async_flags)
1369 EXP_CHECK_DT_OP(exp, set_async_flags);
1370 EXP_COUNTER_INCREMENT(exp, set_async_flags);
1372 rc = OBP(exp->exp_obd, set_async_flags)(exp, lsm, loi, cookie,
1377 static inline int obd_queue_group_io(struct obd_export *exp,
1378 struct lov_stripe_md *lsm,
1379 struct lov_oinfo *loi,
1380 struct obd_io_group *oig,
1381 void *cookie, int cmd, obd_off off,
1382 int count, obd_flag brw_flags,
1383 obd_flag async_flags)
1388 EXP_CHECK_DT_OP(exp, queue_group_io);
1389 EXP_COUNTER_INCREMENT(exp, queue_group_io);
1390 LASSERT(cmd & OBD_BRW_RWMASK);
1392 rc = OBP(exp->exp_obd, queue_group_io)(exp, lsm, loi, oig, cookie,
1393 cmd, off, count, brw_flags,
1398 static inline int obd_trigger_group_io(struct obd_export *exp,
1399 struct lov_stripe_md *lsm,
1400 struct lov_oinfo *loi,
1401 struct obd_io_group *oig)
1406 EXP_CHECK_DT_OP(exp, trigger_group_io);
1407 EXP_COUNTER_INCREMENT(exp, trigger_group_io);
1409 rc = OBP(exp->exp_obd, trigger_group_io)(exp, lsm, loi, oig);
1413 static inline int obd_teardown_async_page(struct obd_export *exp,
1414 struct lov_stripe_md *lsm,
1415 struct lov_oinfo *loi, void *cookie)
1420 EXP_CHECK_DT_OP(exp, teardown_async_page);
1421 EXP_COUNTER_INCREMENT(exp, teardown_async_page);
1423 rc = OBP(exp->exp_obd, teardown_async_page)(exp, lsm, loi, cookie);
1427 static inline int obd_preprw(int cmd, struct obd_export *exp, struct obdo *oa,
1428 int objcount, struct obd_ioobj *obj,
1429 struct niobuf_remote *remote, int *pages,
1430 struct niobuf_local *local,
1431 struct obd_trans_info *oti,
1432 struct lustre_capa *capa)
1437 EXP_CHECK_DT_OP(exp, preprw);
1438 EXP_COUNTER_INCREMENT(exp, preprw);
1440 rc = OBP(exp->exp_obd, preprw)(cmd, exp, oa, objcount, obj, remote,
1441 pages, local, oti, capa);
1445 static inline int obd_commitrw(int cmd, struct obd_export *exp, struct obdo *oa,
1446 int objcount, struct obd_ioobj *obj,
1447 struct niobuf_remote *rnb, int pages,
1448 struct niobuf_local *local,
1449 struct obd_trans_info *oti, int rc)
1453 EXP_CHECK_DT_OP(exp, commitrw);
1454 EXP_COUNTER_INCREMENT(exp, commitrw);
1456 rc = OBP(exp->exp_obd, commitrw)(cmd, exp, oa, objcount, obj,
1457 rnb, pages, local, oti, rc);
1461 static inline int obd_merge_lvb(struct obd_export *exp,
1462 struct lov_stripe_md *lsm,
1463 struct ost_lvb *lvb, int kms_only)
1468 EXP_CHECK_DT_OP(exp, merge_lvb);
1469 EXP_COUNTER_INCREMENT(exp, merge_lvb);
1471 rc = OBP(exp->exp_obd, merge_lvb)(exp, lsm, lvb, kms_only);
1475 static inline int obd_adjust_kms(struct obd_export *exp,
1476 struct lov_stripe_md *lsm, obd_off size,
1482 EXP_CHECK_DT_OP(exp, adjust_kms);
1483 EXP_COUNTER_INCREMENT(exp, adjust_kms);
1485 rc = OBP(exp->exp_obd, adjust_kms)(exp, lsm, size, shrink);
1489 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1490 int len, void *karg, void *uarg)
1495 EXP_CHECK_DT_OP(exp, iocontrol);
1496 EXP_COUNTER_INCREMENT(exp, iocontrol);
1498 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1502 static inline int obd_enqueue_rqset(struct obd_export *exp,
1503 struct obd_info *oinfo,
1504 struct ldlm_enqueue_info *einfo)
1506 struct ptlrpc_request_set *set = NULL;
1510 EXP_CHECK_DT_OP(exp, enqueue);
1511 EXP_COUNTER_INCREMENT(exp, enqueue);
1513 set = ptlrpc_prep_set();
1517 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1519 rc = ptlrpc_set_wait(set);
1520 ptlrpc_set_destroy(set);
1524 static inline int obd_enqueue(struct obd_export *exp,
1525 struct obd_info *oinfo,
1526 struct ldlm_enqueue_info *einfo,
1527 struct ptlrpc_request_set *set)
1532 EXP_CHECK_DT_OP(exp, enqueue);
1533 EXP_COUNTER_INCREMENT(exp, enqueue);
1535 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo, set);
1539 static inline int obd_match(struct obd_export *exp, struct lov_stripe_md *ea,
1540 __u32 type, ldlm_policy_data_t *policy, __u32 mode,
1541 int *flags, void *data, struct lustre_handle *lockh)
1546 EXP_CHECK_DT_OP(exp, match);
1547 EXP_COUNTER_INCREMENT(exp, match);
1549 rc = OBP(exp->exp_obd, match)(exp, ea, type, policy, mode, flags, data,
1554 static inline int obd_change_cbdata(struct obd_export *exp,
1555 struct lov_stripe_md *lsm,
1556 ldlm_iterator_t it, void *data)
1561 EXP_CHECK_DT_OP(exp, change_cbdata);
1562 EXP_COUNTER_INCREMENT(exp, change_cbdata);
1564 rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data);
1568 static inline int obd_cancel(struct obd_export *exp,
1569 struct lov_stripe_md *ea, __u32 mode,
1570 struct lustre_handle *lockh)
1575 EXP_CHECK_DT_OP(exp, cancel);
1576 EXP_COUNTER_INCREMENT(exp, cancel);
1578 rc = OBP(exp->exp_obd, cancel)(exp, ea, mode, lockh);
1582 static inline int obd_cancel_unused(struct obd_export *exp,
1583 struct lov_stripe_md *ea,
1584 int flags, void *opaque)
1589 EXP_CHECK_DT_OP(exp, cancel_unused);
1590 EXP_COUNTER_INCREMENT(exp, cancel_unused);
1592 rc = OBP(exp->exp_obd, cancel_unused)(exp, ea, flags, opaque);
1596 static inline int obd_pin(struct obd_export *exp, const struct lu_fid *fid,
1597 struct obd_capa *oc, struct obd_client_handle *handle,
1603 EXP_CHECK_DT_OP(exp, pin);
1604 EXP_COUNTER_INCREMENT(exp, pin);
1606 rc = OBP(exp->exp_obd, pin)(exp, fid, oc, handle, flag);
1610 static inline int obd_unpin(struct obd_export *exp,
1611 struct obd_client_handle *handle, int flag)
1616 EXP_CHECK_DT_OP(exp, unpin);
1617 EXP_COUNTER_INCREMENT(exp, unpin);
1619 rc = OBP(exp->exp_obd, unpin)(exp, handle, flag);
1624 static inline void obd_import_event(struct obd_device *obd,
1625 struct obd_import *imp,
1626 enum obd_import_event event)
1630 CERROR("NULL device\n");
1634 if (obd->obd_set_up && OBP(obd, import_event)) {
1635 OBD_COUNTER_INCREMENT(obd, import_event);
1636 OBP(obd, import_event)(obd, imp, event);
1641 static inline int obd_llog_connect(struct obd_export *exp,
1642 struct llogd_conn_body *body)
1647 OBD_CHECK_DT_OP(exp->exp_obd, llog_connect, 0);
1648 EXP_COUNTER_INCREMENT(exp, llog_connect);
1650 rc = OBP(exp->exp_obd, llog_connect)(exp, body);
1655 static inline int obd_notify(struct obd_device *obd,
1656 struct obd_device *watched,
1657 enum obd_notify_event ev,
1664 /* the check for async_recov is a complete hack - I'm hereby
1665 overloading the meaning to also mean "this was called from
1666 mds_postsetup". I know that my mds is able to handle notifies
1667 by this point, and it needs to get them to execute mds_postrecov. */
1668 if (!obd->obd_set_up && !obd->obd_async_recov) {
1669 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1673 if (!OBP(obd, notify)) {
1674 CERROR("obd %s has no notify handler\n", obd->obd_name);
1678 OBD_COUNTER_INCREMENT(obd, notify);
1679 rc = OBP(obd, notify)(obd, watched, ev, data);
1683 static inline int obd_notify_observer(struct obd_device *observer,
1684 struct obd_device *observed,
1685 enum obd_notify_event ev,
1691 struct obd_notify_upcall *onu;
1693 if (observer->obd_observer)
1694 rc1 = obd_notify(observer->obd_observer, observed, ev, data);
1698 * Also, call non-obd listener, if any
1700 onu = &observer->obd_upcall;
1701 if (onu->onu_upcall != NULL)
1702 rc2 = onu->onu_upcall(observer, observed, ev, onu->onu_owner);
1706 return rc1 ? rc1 : rc2;
1709 static inline int obd_quotacheck(struct obd_export *exp,
1710 struct obd_quotactl *oqctl)
1715 EXP_CHECK_DT_OP(exp, quotacheck);
1716 EXP_COUNTER_INCREMENT(exp, quotacheck);
1718 rc = OBP(exp->exp_obd, quotacheck)(exp, oqctl);
1722 static inline int obd_quotactl(struct obd_export *exp,
1723 struct obd_quotactl *oqctl)
1728 EXP_CHECK_DT_OP(exp, quotactl);
1729 EXP_COUNTER_INCREMENT(exp, quotactl);
1731 rc = OBP(exp->exp_obd, quotactl)(exp, oqctl);
1735 static inline int obd_health_check(struct obd_device *obd)
1737 /* returns: 0 on healthy
1738 * >0 on unhealthy + reason code/flag
1739 * however the only suppored reason == 1 right now
1740 * We'll need to define some better reasons
1741 * or flags in the future.
1747 /* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
1748 if (obd == NULL || !OBT(obd)) {
1749 CERROR("cleaned up obd\n");
1750 RETURN(-EOPNOTSUPP);
1752 if (!obd->obd_set_up || obd->obd_stopping)
1754 if (!OBP(obd, health_check))
1757 rc = OBP(obd, health_check)(obd);
1761 static inline int obd_register_observer(struct obd_device *obd,
1762 struct obd_device *observer)
1766 if (obd->obd_observer && observer)
1768 obd->obd_observer = observer;
1772 static inline int obd_register_page_removal_cb(struct obd_export *exp,
1773 obd_page_removal_cb_t cb,
1774 obd_pin_extent_cb pin_cb)
1779 OBD_CHECK_DT_OP(exp->exp_obd, register_page_removal_cb, 0);
1780 OBD_COUNTER_INCREMENT(exp->exp_obd, register_page_removal_cb);
1782 rc = OBP(exp->exp_obd, register_page_removal_cb)(exp, cb, pin_cb);
1786 static inline int obd_unregister_page_removal_cb(struct obd_export *exp,
1787 obd_page_removal_cb_t cb)
1792 OBD_CHECK_DT_OP(exp->exp_obd, unregister_page_removal_cb, 0);
1793 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_page_removal_cb);
1795 rc = OBP(exp->exp_obd, unregister_page_removal_cb)(exp, cb);
1799 static inline int obd_register_lock_cancel_cb(struct obd_export *exp,
1800 obd_lock_cancel_cb cb)
1805 OBD_CHECK_DT_OP(exp->exp_obd, register_lock_cancel_cb, 0);
1806 OBD_COUNTER_INCREMENT(exp->exp_obd, register_lock_cancel_cb);
1808 rc = OBP(exp->exp_obd, register_lock_cancel_cb)(exp, cb);
1812 static inline int obd_unregister_lock_cancel_cb(struct obd_export *exp,
1813 obd_lock_cancel_cb cb)
1818 OBD_CHECK_DT_OP(exp->exp_obd, unregister_lock_cancel_cb, 0);
1819 OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_lock_cancel_cb);
1821 rc = OBP(exp->exp_obd, unregister_lock_cancel_cb)(exp, cb);
1825 /* metadata helpers */
1826 static inline int md_getstatus(struct obd_export *exp,
1827 struct lu_fid *fid, struct obd_capa **pc)
1832 EXP_CHECK_MD_OP(exp, getstatus);
1833 EXP_MD_COUNTER_INCREMENT(exp, getstatus);
1834 rc = MDP(exp->exp_obd, getstatus)(exp, fid, pc);
1838 static inline int md_getattr(struct obd_export *exp, const struct lu_fid *fid,
1839 struct obd_capa *oc, obd_valid valid, int ea_size,
1840 struct ptlrpc_request **request)
1844 EXP_CHECK_MD_OP(exp, getattr);
1845 EXP_MD_COUNTER_INCREMENT(exp, getattr);
1846 rc = MDP(exp->exp_obd, getattr)(exp, fid, oc, valid,
1851 static inline int md_change_cbdata(struct obd_export *exp,
1852 const struct lu_fid *fid,
1853 ldlm_iterator_t it, void *data)
1857 EXP_CHECK_MD_OP(exp, change_cbdata);
1858 EXP_MD_COUNTER_INCREMENT(exp, change_cbdata);
1859 rc = MDP(exp->exp_obd, change_cbdata)(exp, fid, it, data);
1863 static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
1864 struct md_open_data *mod,
1865 struct ptlrpc_request **request)
1869 EXP_CHECK_MD_OP(exp, close);
1870 EXP_MD_COUNTER_INCREMENT(exp, close);
1871 rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
1875 static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
1876 const void *data, int datalen, int mode, __u32 uid,
1877 __u32 gid, cfs_cap_t cap_effective, __u64 rdev,
1878 struct ptlrpc_request **request)
1882 EXP_CHECK_MD_OP(exp, create);
1883 EXP_MD_COUNTER_INCREMENT(exp, create);
1884 rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1885 uid, gid, cap_effective, rdev, request);
1889 static inline int md_done_writing(struct obd_export *exp,
1890 struct md_op_data *op_data,
1891 struct md_open_data *mod)
1895 EXP_CHECK_MD_OP(exp, done_writing);
1896 EXP_MD_COUNTER_INCREMENT(exp, done_writing);
1897 rc = MDP(exp->exp_obd, done_writing)(exp, op_data, mod);
1901 static inline int md_enqueue(struct obd_export *exp,
1902 struct ldlm_enqueue_info *einfo,
1903 struct lookup_intent *it,
1904 struct md_op_data *op_data,
1905 struct lustre_handle *lockh,
1906 void *lmm, int lmmsize,
1907 struct ptlrpc_request **req,
1908 int extra_lock_flags)
1912 EXP_CHECK_MD_OP(exp, enqueue);
1913 EXP_MD_COUNTER_INCREMENT(exp, enqueue);
1914 rc = MDP(exp->exp_obd, enqueue)(exp, einfo, it, op_data, lockh,
1915 lmm, lmmsize, req, extra_lock_flags);
1919 static inline int md_getattr_name(struct obd_export *exp,
1920 const struct lu_fid *fid, struct obd_capa *oc,
1921 const char *name, int namelen,
1922 obd_valid valid, int ea_size, __u32 suppgid,
1923 struct ptlrpc_request **request)
1927 EXP_CHECK_MD_OP(exp, getattr_name);
1928 EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
1929 rc = MDP(exp->exp_obd, getattr_name)(exp, fid, oc, name, namelen,
1930 valid, ea_size, suppgid, request);
1934 static inline int md_intent_lock(struct obd_export *exp,
1935 struct md_op_data *op_data, void *lmm,
1936 int lmmsize, struct lookup_intent *it,
1937 int flags, struct ptlrpc_request **reqp,
1938 ldlm_blocking_callback cb_blocking,
1939 int extra_lock_flags)
1943 EXP_CHECK_MD_OP(exp, intent_lock);
1944 EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
1945 rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, lmm, lmmsize,
1946 it, flags, reqp, cb_blocking,
1951 static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
1952 struct ptlrpc_request **request)
1956 EXP_CHECK_MD_OP(exp, link);
1957 EXP_MD_COUNTER_INCREMENT(exp, link);
1958 rc = MDP(exp->exp_obd, link)(exp, op_data, request);
1962 static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
1963 const char *old, int oldlen, const char *new,
1964 int newlen, struct ptlrpc_request **request)
1968 EXP_CHECK_MD_OP(exp, rename);
1969 EXP_MD_COUNTER_INCREMENT(exp, rename);
1970 rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
1975 static inline int md_is_subdir(struct obd_export *exp,
1976 const struct lu_fid *pfid,
1977 const struct lu_fid *cfid,
1978 struct ptlrpc_request **request)
1982 EXP_CHECK_MD_OP(exp, is_subdir);
1983 EXP_MD_COUNTER_INCREMENT(exp, is_subdir);
1984 rc = MDP(exp->exp_obd, is_subdir)(exp, pfid, cfid, request);
1988 static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
1989 void *ea, int ealen, void *ea2, int ea2len,
1990 struct ptlrpc_request **request,
1991 struct md_open_data **mod)
1995 EXP_CHECK_MD_OP(exp, setattr);
1996 EXP_MD_COUNTER_INCREMENT(exp, setattr);
1997 rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen,
1998 ea2, ea2len, request, mod);
2002 static inline int md_sync(struct obd_export *exp, const struct lu_fid *fid,
2003 struct obd_capa *oc, struct ptlrpc_request **request)
2007 EXP_CHECK_MD_OP(exp, sync);
2008 EXP_MD_COUNTER_INCREMENT(exp, sync);
2009 rc = MDP(exp->exp_obd, sync)(exp, fid, oc, request);
2013 static inline int md_readpage(struct obd_export *exp, const struct lu_fid *fid,
2014 struct obd_capa *oc, __u64 offset,
2016 struct ptlrpc_request **request)
2020 EXP_CHECK_MD_OP(exp, readpage);
2021 EXP_MD_COUNTER_INCREMENT(exp, readpage);
2022 rc = MDP(exp->exp_obd, readpage)(exp, fid, oc, offset, page, request);
2026 static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
2027 struct ptlrpc_request **request)
2031 EXP_CHECK_MD_OP(exp, unlink);
2032 EXP_MD_COUNTER_INCREMENT(exp, unlink);
2033 rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
2037 static inline int md_get_lustre_md(struct obd_export *exp,
2038 struct ptlrpc_request *req,
2039 struct obd_export *dt_exp,
2040 struct obd_export *md_exp,
2041 struct lustre_md *md)
2044 EXP_CHECK_MD_OP(exp, get_lustre_md);
2045 EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
2046 RETURN(MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md));
2049 static inline int md_free_lustre_md(struct obd_export *exp,
2050 struct lustre_md *md)
2053 EXP_CHECK_MD_OP(exp, free_lustre_md);
2054 EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
2055 RETURN(MDP(exp->exp_obd, free_lustre_md)(exp, md));
2058 static inline int md_setxattr(struct obd_export *exp,
2059 const struct lu_fid *fid, struct obd_capa *oc,
2060 obd_valid valid, const char *name,
2061 const char *input, int input_size,
2062 int output_size, int flags, __u32 suppgid,
2063 struct ptlrpc_request **request)
2066 EXP_CHECK_MD_OP(exp, setxattr);
2067 EXP_MD_COUNTER_INCREMENT(exp, setxattr);
2068 RETURN(MDP(exp->exp_obd, setxattr)(exp, fid, oc, valid, name, input,
2069 input_size, output_size, flags,
2073 static inline int md_getxattr(struct obd_export *exp,
2074 const struct lu_fid *fid, struct obd_capa *oc,
2075 obd_valid valid, const char *name,
2076 const char *input, int input_size,
2077 int output_size, int flags,
2078 struct ptlrpc_request **request)
2081 EXP_CHECK_MD_OP(exp, getxattr);
2082 EXP_MD_COUNTER_INCREMENT(exp, getxattr);
2083 RETURN(MDP(exp->exp_obd, getxattr)(exp, fid, oc, valid, name, input,
2084 input_size, output_size, flags,
2088 static inline int md_set_open_replay_data(struct obd_export *exp,
2089 struct obd_client_handle *och,
2090 struct ptlrpc_request *open_req)
2093 EXP_CHECK_MD_OP(exp, set_open_replay_data);
2094 EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
2095 RETURN(MDP(exp->exp_obd, set_open_replay_data)(exp, och, open_req));
2098 static inline int md_clear_open_replay_data(struct obd_export *exp,
2099 struct obd_client_handle *och)
2102 EXP_CHECK_MD_OP(exp, clear_open_replay_data);
2103 EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
2104 RETURN(MDP(exp->exp_obd, clear_open_replay_data)(exp, och));
2107 static inline int md_set_lock_data(struct obd_export *exp,
2108 __u64 *lockh, void *data)
2111 EXP_CHECK_MD_OP(exp, set_lock_data);
2112 EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
2113 RETURN(MDP(exp->exp_obd, set_lock_data)(exp, lockh, data));
2116 static inline int md_cancel_unused(struct obd_export *exp,
2117 const struct lu_fid *fid,
2118 ldlm_policy_data_t *policy,
2119 ldlm_mode_t mode, int flags, void *opaque)
2124 EXP_CHECK_MD_OP(exp, cancel_unused);
2125 EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
2127 rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
2132 static inline ldlm_mode_t md_lock_match(struct obd_export *exp, int flags,
2133 const struct lu_fid *fid,
2135 ldlm_policy_data_t *policy,
2137 struct lustre_handle *lockh)
2140 EXP_CHECK_MD_OP(exp, lock_match);
2141 EXP_MD_COUNTER_INCREMENT(exp, lock_match);
2142 RETURN(MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
2143 policy, mode, lockh));
2146 static inline int md_init_ea_size(struct obd_export *exp, int easize,
2147 int def_asize, int cookiesize)
2150 EXP_CHECK_MD_OP(exp, init_ea_size);
2151 EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
2152 RETURN(MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
2156 static inline int md_get_remote_perm(struct obd_export *exp,
2157 const struct lu_fid *fid,
2158 struct obd_capa *oc, __u32 suppgid,
2159 struct ptlrpc_request **request)
2162 EXP_CHECK_MD_OP(exp, get_remote_perm);
2163 EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm);
2164 RETURN(MDP(exp->exp_obd, get_remote_perm)(exp, fid, oc, suppgid,
2168 static inline int md_renew_capa(struct obd_export *exp, struct obd_capa *ocapa,
2173 EXP_CHECK_MD_OP(exp, renew_capa);
2174 EXP_MD_COUNTER_INCREMENT(exp, renew_capa);
2175 rc = MDP(exp->exp_obd, renew_capa)(exp, ocapa, cb);
2179 static inline int md_intent_getattr_async(struct obd_export *exp,
2180 struct md_enqueue_info *minfo,
2181 struct ldlm_enqueue_info *einfo)
2185 EXP_CHECK_MD_OP(exp, intent_getattr_async);
2186 EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
2187 rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo, einfo);
2191 static inline int md_revalidate_lock(struct obd_export *exp,
2192 struct lookup_intent *it,
2197 EXP_CHECK_MD_OP(exp, revalidate_lock);
2198 EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
2199 rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid);
2204 /* OBD Metadata Support */
2206 extern int obd_init_caches(void);
2207 extern void obd_cleanup_caches(void);
2209 /* support routines */
2210 extern cfs_mem_cache_t *obdo_cachep;
2212 #define OBDO_ALLOC(ptr) \
2214 OBD_SLAB_ALLOC_PTR((ptr), obdo_cachep); \
2217 #define OBDO_FREE(ptr) \
2219 OBD_SLAB_FREE_PTR((ptr), obdo_cachep); \
2223 static inline void obdo2fid(struct obdo *oa, struct lu_fid *fid)
2225 /* something here */
2228 static inline void fid2obdo(struct lu_fid *fid, struct obdo *oa)
2230 /* something here */
2233 /* I'm as embarrassed about this as you are.
2235 * <shaver> // XXX do not look into _superhack with remaining eye
2236 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
2237 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
2240 extern void obd_sysctl_init (void);
2241 extern void obd_sysctl_clean (void);
2244 typedef __u8 class_uuid_t[16];
2245 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
2248 int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
2249 int class_add_uuid(const char *uuid, __u64 nid);
2250 int class_del_uuid (const char *uuid);
2251 void class_init_uuidlist(void);
2252 void class_exit_uuidlist(void);
2255 int mea_name2idx(struct lmv_stripe_md *mea, const char *name, int namelen);
2256 int raw_name2idx(int hashtype, int count, const char *name, int namelen);
2259 void ll_generate_random_uuid(class_uuid_t uuid_out);
2261 #endif /* __LINUX_OBD_CLASS_H */