lustre/include/linux/obd_class.h

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  *  Copyright (C) 2001-2003 Cluster File Systems, Inc.
   5  *
   6  *   This file is part of Lustre, http://www.lustre.org.
   7  *
   8  *   Lustre is free software; you can redistribute it and/or
   9  *   modify it under the terms of version 2 of the GNU General Public
  10  *   License as published by the Free Software Foundation.
  11  *
  12  *   Lustre is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with Lustre; if not, write to the Free Software
  19  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  *
  21  */
  22
  23 #ifndef __LINUX_CLASS_OBD_H
  24 #define __LINUX_CLASS_OBD_H
  25
  26 #ifndef __KERNEL__
  27 #include <sys/types.h>
  28 #include <portals/list.h>
  29 #else
  30 #include <asm/segment.h>
  31 #include <asm/uaccess.h>
  32 #include <linux/types.h>
  33 #include <linux/fs.h>
  34 #include <linux/time.h>
  35 #include <linux/timer.h>
  36 #endif
  37
  38 #include <linux/obd_support.h>
  39 #include <linux/lustre_import.h>
  40 #include <linux/lustre_net.h>
  41 #include <linux/obd.h>
  42 #include <linux/lustre_lib.h>
  43 #include <linux/lustre_idl.h>
  44 #include <linux/lprocfs_status.h>
  45 #include <linux/lustre_log.h>
  46
  47 /* OBD Device Declarations */
  48 #define MAX_OBD_DEVICES 256
  49 extern struct obd_device obd_dev[MAX_OBD_DEVICES];
  50
  51 /* OBD Operations Declarations */
  52 extern struct obd_device *class_conn2obd(struct lustre_handle *);
  53 extern struct obd_device *class_exp2obd(struct obd_export *);
  54
  55 /* genops.c */
  56 struct obd_export *class_conn2export(struct lustre_handle *);
  57 int class_register_type(struct obd_ops *ops, struct md_ops *md_ops,
  58                         struct lprocfs_vars *, char *nm);
  59 int class_unregister_type(char *nm);
  60
  61 struct obd_device *class_newdev(int *dev);
  62
  63 int class_name2dev(char *name);
  64 struct obd_device *class_name2obd(char *name);
  65 int class_uuid2dev(struct obd_uuid *uuid);
  66 struct obd_device *class_uuid2obd(struct obd_uuid *uuid);
  67 struct obd_device * class_find_client_obd(struct obd_uuid *tgt_uuid,
  68                                           char * typ_name,
  69                                           struct obd_uuid *grp_uuid);
  70 struct obd_device * class_devices_in_group(struct obd_uuid *grp_uuid,
  71                                            int *next);
  72
  73 int oig_init(struct obd_io_group **oig);
  74 void oig_add_one(struct obd_io_group *oig,
  75                   struct oig_callback_context *occ);
  76 void oig_complete_one(struct obd_io_group *oig,
  77                        struct oig_callback_context *occ, int rc);
  78 void oig_release(struct obd_io_group *oig);
  79 int oig_wait(struct obd_io_group *oig);
  80
  81 /* obd_config.c */
  82 int class_process_config(struct lustre_cfg *lcfg);
  83
  84 /* Passed as data param to class_config_parse_handler() */
  85 struct config_llog_instance {
  86         char * cfg_instance;
  87         struct obd_uuid cfg_uuid;
  88         ptl_nid_t cfg_local_nid;
  89 };
  90
  91 int class_config_process_llog(struct llog_ctxt *ctxt, char *name,
  92                               struct config_llog_instance *cfg);
  93 int class_config_dump_llog(struct llog_ctxt *ctxt, char *name,
  94                            struct config_llog_instance *cfg);
  95
  96 struct lustre_profile {
  97         struct list_head lp_list;
  98         char * lp_profile;
  99         char * lp_osc;
 100         char * lp_mdc;
 101 };
 102
 103 struct lustre_profile *class_get_profile(char * prof);
 104 void class_del_profile(char *prof);
 105
 106 #define class_export_rpc_get(exp)                                       \
 107 ({                                                                      \
 108         atomic_inc(&(exp)->exp_rpc_count);                              \
 109         CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n",    \
 110                (exp), atomic_read(&(exp)->exp_rpc_count));              \
 111         class_export_get(exp);                                          \
 112 })
 113
 114 #define class_export_rpc_put(exp)                                       \
 115 ({                                                                      \
 116         atomic_dec(&(exp)->exp_rpc_count);                              \
 117         CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n",    \
 118                (exp), atomic_read(&(exp)->exp_rpc_count));              \
 119         class_export_put(exp);                                          \
 120 })
 121
 122 #define class_export_get(exp)                                                  \
 123 ({                                                                             \
 124         struct obd_export *exp_ = exp;                                         \
 125         atomic_inc(&exp_->exp_refcount);                                       \
 126         CDEBUG(D_INFO, "GETting export %p : new refcount %d\n", exp_,          \
 127                atomic_read(&exp_->exp_refcount));                              \
 128         exp_;                                                                  \
 129 })
 130
 131 #define class_export_put(exp)                                                  \
 132 do {                                                                           \
 133         LASSERT((exp) != NULL);                                                \
 134         CDEBUG(D_INFO, "PUTting export %p : new refcount %d\n", (exp),         \
 135                atomic_read(&(exp)->exp_refcount) - 1);                         \
 136         LASSERT(atomic_read(&(exp)->exp_refcount) > 0);                        \
 137         LASSERT(atomic_read(&(exp)->exp_refcount) < 0x5a5a5a);                 \
 138         __class_export_put(exp);                                               \
 139 } while (0)
 140 void __class_export_put(struct obd_export *);
 141 struct obd_export *class_new_export(struct obd_device *obddev);
 142 void class_unlink_export(struct obd_export *exp);
 143
 144 struct obd_import *class_import_get(struct obd_import *);
 145 void class_import_put(struct obd_import *);
 146 struct obd_import *class_new_import(void);
 147 void class_destroy_import(struct obd_import *exp);
 148
 149 struct obd_type *class_get_type(char *name);
 150 void class_put_type(struct obd_type *type);
 151 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
 152                   struct obd_uuid *cluuid);
 153 int class_disconnect(struct obd_export *exp, int failover);
 154 void class_disconnect_exports(struct obd_device *obddev, int failover);
 155 /* generic operations shared by various OBD types */
 156 int class_multi_setup(struct obd_device *obddev, uint32_t len, void *data);
 157 int class_multi_cleanup(struct obd_device *obddev);
 158
 159 /* obdo.c */
 160 #ifdef __KERNEL__
 161 void obdo_from_iattr(struct obdo *oa, struct iattr *attr, unsigned ia_valid);
 162 void iattr_from_obdo(struct iattr *attr, struct obdo *oa, obd_flag valid);
 163 void obdo_from_inode(struct obdo *dst, struct inode *src, obd_flag valid);
 164 void obdo_refresh_inode(struct inode *dst, struct obdo *src, obd_flag valid);
 165 void obdo_to_inode(struct inode *dst, struct obdo *src, obd_flag valid);
 166 #endif
 167 void obdo_cpy_md(struct obdo *dst, struct obdo *src, obd_flag valid);
 168 int obdo_cmp_md(struct obdo *dst, struct obdo *src, obd_flag compare);
 169 void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj);
 170
 171 static inline int obd_check_conn(struct lustre_handle *conn)
 172 {
 173         struct obd_device *obd;
 174         if (!conn) {
 175                 CERROR("NULL conn\n");
 176                 RETURN(-ENOTCONN);
 177         }
 178
 179         obd = class_conn2obd(conn);
 180         if (!obd) {
 181                 CERROR("NULL obd\n");
 182                 RETURN(-ENODEV);
 183         }
 184
 185         if (!obd->obd_attached) {
 186                 CERROR("obd %d not attached\n", obd->obd_minor);
 187                 RETURN(-ENODEV);
 188         }
 189
 190         if (!obd->obd_set_up) {
 191                 CERROR("obd %d not setup\n", obd->obd_minor);
 192                 RETURN(-ENODEV);
 193         }
 194
 195         if (!obd->obd_type) {
 196                 CERROR("obd %d not typed\n", obd->obd_minor);
 197                 RETURN(-ENODEV);
 198         }
 199
 200         if (!obd->obd_type->typ_ops) {
 201                 CERROR("obd_check_conn: obd %d no operations\n",
 202                        obd->obd_minor);
 203                 RETURN(-EOPNOTSUPP);
 204         }
 205         return 0;
 206 }
 207
 208
 209 #define OBT(dev)        (dev)->obd_type
 210 #define OBP(dev, op)    (dev)->obd_type->typ_ops->o_ ## op
 211 #define MDP(dev, op)    (dev)->obd_type->typ_md_ops->m_ ## op
 212 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
 213
 214 /* Ensure obd_setup: used for disconnect which might be called while
 215    an obd is stopping. */
 216 #define OBD_CHECK_SETUP(conn, exp)                                      \
 217 do {                                                                    \
 218         if (!(conn)) {                                                  \
 219                 CERROR("NULL connection\n");                            \
 220                 RETURN(-EINVAL);                                        \
 221         }                                                               \
 222                                                                         \
 223         exp = class_conn2export(conn);                                  \
 224         if (!(exp)) {                                                   \
 225                 CERROR("No export for conn "LPX64"\n", (conn)->cookie); \
 226                 RETURN(-EINVAL);                                        \
 227         }                                                               \
 228                                                                         \
 229         if (!(exp)->exp_obd->obd_set_up) {                              \
 230                 CERROR("Device %d not setup\n",                         \
 231                        (exp)->exp_obd->obd_minor);                      \
 232                 class_export_put(exp);                                  \
 233                 RETURN(-EINVAL);                                        \
 234         }                                                               \
 235 } while (0)
 236
 237 /* Ensure obd_setup and !obd_stopping. */
 238 #define OBD_CHECK_ACTIVE(conn, exp)                                     \
 239 do {                                                                    \
 240         if (!(conn)) {                                                  \
 241                 CERROR("NULL connection\n");                            \
 242                 RETURN(-EINVAL);                                        \
 243         }                                                               \
 244                                                                         \
 245         exp = class_conn2export(conn);                                  \
 246         if (!(exp)) {                                                   \
 247                 CERROR("No export for conn "LPX64"\n", (conn)->cookie); \
 248                 RETURN(-EINVAL);                                        \
 249         }                                                               \
 250                                                                         \
 251         if (!(exp)->exp_obd->obd_set_up || (exp)->exp_obd->obd_stopping) { \
 252                 CERROR("Device %d not setup\n",                         \
 253                        (exp)->exp_obd->obd_minor);                      \
 254                 class_export_put(exp);                                  \
 255                 RETURN(-EINVAL);                                        \
 256         }                                                               \
 257 } while (0)
 258
 259 /* Ensure obd_setup: used for cleanup which must be called
 260    while obd is stopping */
 261 #define OBD_CHECK_DEV_STOPPING(obd)                             \
 262 do {                                                            \
 263         if (!(obd)) {                                           \
 264                 CERROR("NULL device\n");                        \
 265                 RETURN(-ENODEV);                                \
 266         }                                                       \
 267                                                                 \
 268         if (!(obd)->obd_set_up) {                               \
 269                 CERROR("Device %d not setup\n",                 \
 270                        (obd)->obd_minor);                       \
 271                 RETURN(-ENODEV);                                \
 272         }                                                       \
 273                                                                 \
 274         if (!(obd)->obd_stopping) {                             \
 275                 CERROR("Device %d not stopping\n",              \
 276                        (obd)->obd_minor);                       \
 277                 RETURN(-ENODEV);                                \
 278         }                                                       \
 279 } while (0)
 280
 281 /* ensure obd_setup and !obd_stopping */
 282 #define OBD_CHECK_DEV_ACTIVE(obd)                               \
 283 do {                                                            \
 284         if (!(obd)) {                                           \
 285                 CERROR("NULL device\n");                        \
 286                 RETURN(-ENODEV);                                \
 287         }                                                       \
 288                                                                 \
 289         if (!(obd)->obd_set_up || (obd)->obd_stopping) {        \
 290                 CERROR("Device %d not setup\n",                 \
 291                        (obd)->obd_minor);                       \
 292                 RETURN(-ENODEV);                                \
 293         }                                                       \
 294 } while (0)
 295
 296
 297 #ifdef LPROCFS
 298 #define OBD_COUNTER_OFFSET(op)                                  \
 299         ((offsetof(struct obd_ops, o_ ## op) -                  \
 300           offsetof(struct obd_ops, o_iocontrol))                \
 301          / sizeof(((struct obd_ops *)(0))->o_iocontrol))
 302
 303 #define OBD_COUNTER_INCREMENT(obd, op)                          \
 304         if ((obd)->obd_stats != NULL) {                         \
 305                 unsigned int coffset;                           \
 306                 coffset = (unsigned int)(obd)->obd_cntr_base +  \
 307                         OBD_COUNTER_OFFSET(op);                 \
 308                 LASSERT(coffset < obd->obd_stats->ls_num);      \
 309                 lprocfs_counter_incr(obd->obd_stats, coffset);  \
 310         }
 311 /* FIXME: real accounting here */
 312 #define MD_COUNTER_INCREMENT(obd, op)
 313 #else
 314 #define OBD_COUNTER_OFFSET(op)
 315 #define OBD_COUNTER_INCREMENT(obd, op)
 316 #define MD_COUNTER_INCREMENT(obd, op)
 317 #endif
 318
 319 #define OBD_CHECK_MD_OP(obd, op, err)                           \
 320 do {                                                            \
 321         if (!OBT(obd) || !MDP((obd), op)) {\
 322                 if (err)                                        \
 323                         CERROR("obd_md" #op ": dev %d no operation\n",    \
 324                                obd->obd_minor);                 \
 325                 RETURN(err);                                    \
 326         }                                                       \
 327 } while (0)
 328
 329 #define EXP_CHECK_MD_OP(exp, op)                                \
 330 do {                                                            \
 331         if ((exp) == NULL) {                                    \
 332                 CERROR("obd_" #op ": NULL export\n");           \
 333                 portals_debug_dumplog();                        \
 334                 RETURN(-ENODEV);                                \
 335         }                                                       \
 336         if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) {   \
 337                 CERROR("obd_" #op ": cleaned up obd\n");        \
 338                 RETURN(-EOPNOTSUPP);                            \
 339         }                                                       \
 340         if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
 341                 CERROR("obd_" #op ": dev %d no operation\n",    \
 342                        (exp)->exp_obd->obd_minor);              \
 343                 RETURN(-EOPNOTSUPP);                            \
 344         }                                                       \
 345 } while (0)
 346
 347 #define OBD_CHECK_OP(obd, op, err)                              \
 348 do {                                                            \
 349         if (!OBT(obd) || !OBP((obd), op)) {\
 350                 if (err)                                        \
 351                         CERROR("obd_" #op ": dev %d no operation\n",    \
 352                                obd->obd_minor);                         \
 353                 RETURN(err);                                    \
 354         }                                                       \
 355 } while (0)
 356
 357 #define EXP_CHECK_OP(exp, op)                                   \
 358 do {                                                            \
 359         if ((exp) == NULL) {                                    \
 360                 CERROR("obd_" #op ": NULL export\n");           \
 361                 portals_debug_dumplog();                        \
 362                 RETURN(-ENODEV);                                \
 363         }                                                       \
 364         if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) {   \
 365                 CERROR("obd_" #op ": cleaned up obd\n");        \
 366                 RETURN(-EOPNOTSUPP);                            \
 367         }                                                       \
 368         if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
 369                 CERROR("obd_" #op ": dev %d no operation\n",    \
 370                        (exp)->exp_obd->obd_minor);              \
 371                 RETURN(-EOPNOTSUPP);                            \
 372         }                                                       \
 373 } while (0)
 374
 375 #define CTXT_CHECK_OP(ctxt, op, err)                                         \
 376 do {                                                            \
 377         if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) {                     \
 378                 if (err)                                        \
 379                         CERROR("lop_" #op ": dev %d no operation\n",    \
 380                                ctxt->loc_obd->obd_minor);                         \
 381                 RETURN(err);                                    \
 382         }                                                       \
 383 } while (0)
 384
 385 static inline int obd_get_info(struct obd_export *exp, __u32 keylen,
 386                                void *key, __u32 *vallen, void *val)
 387 {
 388         int rc;
 389         ENTRY;
 390
 391         EXP_CHECK_OP(exp, get_info);
 392         OBD_COUNTER_INCREMENT(exp->exp_obd, get_info);
 393
 394         rc = OBP(exp->exp_obd, get_info)(exp, keylen, key, vallen, val);
 395         RETURN(rc);
 396 }
 397
 398 static inline int obd_set_info(struct obd_export *exp, obd_count keylen,
 399                                void *key, obd_count vallen, void *val)
 400 {
 401         int rc;
 402         ENTRY;
 403
 404         EXP_CHECK_OP(exp, set_info);
 405         OBD_COUNTER_INCREMENT(exp->exp_obd, set_info);
 406
 407         rc = OBP(exp->exp_obd, set_info)(exp, keylen, key, vallen, val);
 408         RETURN(rc);
 409 }
 410
 411 static inline int obd_setup(struct obd_device *obd, int datalen, void *data)
 412 {
 413         int rc;
 414         ENTRY;
 415
 416         OBD_CHECK_OP(obd, setup, -EOPNOTSUPP);
 417         OBD_COUNTER_INCREMENT(obd, setup);
 418
 419         rc = OBP(obd, setup)(obd, datalen, data);
 420         RETURN(rc);
 421 }
 422
 423 static inline int obd_precleanup(struct obd_device *obd, int flags)
 424 {
 425         int rc;
 426         ENTRY;
 427
 428         OBD_CHECK_OP(obd, precleanup, 0);
 429         OBD_COUNTER_INCREMENT(obd, precleanup);
 430
 431         rc = OBP(obd, precleanup)(obd, flags);
 432         RETURN(rc);
 433 }
 434
 435 static inline int obd_cleanup(struct obd_device *obd, int flags)
 436 {
 437         int rc;
 438         ENTRY;
 439
 440         OBD_CHECK_DEV_STOPPING(obd);
 441         OBD_CHECK_OP(obd, cleanup, 0);
 442         OBD_COUNTER_INCREMENT(obd, cleanup);
 443
 444         rc = OBP(obd, cleanup)(obd, flags);
 445         RETURN(rc);
 446 }
 447
 448 static inline int
 449 obd_process_config(struct obd_device *obd, int datalen, void *data)
 450 {
 451         int rc;
 452         ENTRY;
 453
 454         OBD_CHECK_OP(obd, process_config, -EOPNOTSUPP);
 455         OBD_COUNTER_INCREMENT(obd, process_config);
 456
 457         rc = OBP(obd, process_config)(obd, datalen, data);
 458         RETURN(rc);
 459 }
 460
 461 /* Pack an in-memory MD struct for storage on disk.
 462  * Returns +ve size of packed MD (0 for free), or -ve error.
 463  *
 464  * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL).
 465  * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed.
 466  * If @*disk_tgt == NULL, it will be allocated
 467  */
 468 static inline int obd_packmd(struct obd_export *exp,
 469                              struct lov_mds_md **disk_tgt,
 470                              struct lov_stripe_md *mem_src)
 471 {
 472         int rc;
 473         ENTRY;
 474
 475         EXP_CHECK_OP(exp, packmd);
 476         OBD_COUNTER_INCREMENT(exp->exp_obd, packmd);
 477
 478         rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src);
 479         RETURN(rc);
 480 }
 481
 482 static inline int obd_size_diskmd(struct obd_export *exp,
 483                                   struct lov_stripe_md *mem_src)
 484 {
 485         return obd_packmd(exp, NULL, mem_src);
 486 }
 487
 488 /* helper functions */
 489 static inline int obd_alloc_diskmd(struct obd_export *exp,
 490                                    struct lov_mds_md **disk_tgt)
 491 {
 492         LASSERT(disk_tgt);
 493         LASSERT(*disk_tgt == NULL);
 494         return obd_packmd(exp, disk_tgt, NULL);
 495 }
 496
 497 static inline int obd_free_diskmd(struct obd_export *exp,
 498                                   struct lov_mds_md **disk_tgt)
 499 {
 500         LASSERT(disk_tgt);
 501         LASSERT(*disk_tgt);
 502         return obd_packmd(exp, disk_tgt, NULL);
 503 }
 504
 505 /* Unpack an MD struct from disk to in-memory format.
 506  * Returns +ve size of unpacked MD (0 for free), or -ve error.
 507  *
 508  * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL).
 509  * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed.
 510  * If @*mem_tgt == NULL, it will be allocated
 511  */
 512 static inline int obd_unpackmd(struct obd_export *exp,
 513                                struct lov_stripe_md **mem_tgt,
 514                                struct lov_mds_md *disk_src,
 515                                int disk_len)
 516 {
 517         int rc;
 518         ENTRY;
 519
 520         EXP_CHECK_OP(exp, unpackmd);
 521         OBD_COUNTER_INCREMENT(exp->exp_obd, unpackmd);
 522
 523         rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len);
 524         RETURN(rc);
 525 }
 526
 527 /* helper functions */
 528 static inline int obd_alloc_memmd(struct obd_export *exp,
 529                                   struct lov_stripe_md **mem_tgt)
 530 {
 531         LASSERT(mem_tgt);
 532         LASSERT(*mem_tgt == NULL);
 533         return obd_unpackmd(exp, mem_tgt, NULL, 0);
 534 }
 535
 536 static inline int obd_free_memmd(struct obd_export *exp,
 537                                  struct lov_stripe_md **mem_tgt)
 538 {
 539         LASSERT(mem_tgt);
 540         LASSERT(*mem_tgt);
 541         return obd_unpackmd(exp, mem_tgt, NULL, 0);
 542 }
 543
 544 static inline int obd_revalidate_md(struct obd_export *exp, struct obdo *obdo,
 545                                     struct lov_stripe_md *ea,
 546                                     struct obd_trans_info *oti)
 547 {
 548         int rc;
 549         ENTRY;
 550
 551         EXP_CHECK_OP(exp, revalidate_md);
 552         OBD_COUNTER_INCREMENT(exp->exp_obd, revalidate_md);
 553
 554         rc = OBP(exp->exp_obd, revalidate_md)(exp, obdo, ea, oti);
 555         RETURN(rc);
 556 }
 557
 558 static inline int obd_create(struct obd_export *exp, struct obdo *obdo,
 559                              struct lov_stripe_md **ea,
 560                              struct obd_trans_info *oti)
 561 {
 562         int rc;
 563         ENTRY;
 564
 565         EXP_CHECK_OP(exp, create);
 566         OBD_COUNTER_INCREMENT(exp->exp_obd, create);
 567
 568         rc = OBP(exp->exp_obd, create)(exp, obdo, ea, oti);
 569         RETURN(rc);
 570 }
 571
 572 static inline int obd_destroy(struct obd_export *exp, struct obdo *obdo,
 573                               struct lov_stripe_md *ea,
 574                               struct obd_trans_info *oti)
 575 {
 576         int rc;
 577         ENTRY;
 578
 579         EXP_CHECK_OP(exp, destroy);
 580         OBD_COUNTER_INCREMENT(exp->exp_obd, destroy);
 581
 582         rc = OBP(exp->exp_obd, destroy)(exp, obdo, ea, oti);
 583         RETURN(rc);
 584 }
 585
 586 static inline int obd_getattr(struct obd_export *exp, struct obdo *obdo,
 587                               struct lov_stripe_md *ea)
 588 {
 589         int rc;
 590         ENTRY;
 591
 592         EXP_CHECK_OP(exp, getattr);
 593         OBD_COUNTER_INCREMENT(exp->exp_obd, getattr);
 594
 595         rc = OBP(exp->exp_obd, getattr)(exp, obdo, ea);
 596         RETURN(rc);
 597 }
 598
 599 static inline int obd_getattr_async(struct obd_export *exp,
 600                                     struct obdo *obdo, struct lov_stripe_md *ea,
 601                                     struct ptlrpc_request_set *set)
 602 {
 603         int rc;
 604         ENTRY;
 605
 606         EXP_CHECK_OP(exp, getattr);
 607         OBD_COUNTER_INCREMENT(exp->exp_obd, getattr);
 608
 609         rc = OBP(exp->exp_obd, getattr_async)(exp, obdo, ea, set);
 610         RETURN(rc);
 611 }
 612
 613 static inline int obd_setattr(struct obd_export *exp, struct obdo *obdo,
 614                               struct lov_stripe_md *ea,
 615                               struct obd_trans_info *oti)
 616 {
 617         int rc;
 618         ENTRY;
 619
 620         EXP_CHECK_OP(exp, setattr);
 621         OBD_COUNTER_INCREMENT(exp->exp_obd, setattr);
 622
 623         rc = OBP(exp->exp_obd, setattr)(exp, obdo, ea, oti);
 624         RETURN(rc);
 625 }
 626
 627 static inline int obd_connect(struct lustre_handle *conn,
 628                               struct obd_device *obd, struct obd_uuid *cluuid,
 629                               unsigned long connect_flags)
 630 {
 631         int rc;
 632         ENTRY;
 633
 634         OBD_CHECK_DEV_ACTIVE(obd);
 635         OBD_CHECK_OP(obd, connect, -EOPNOTSUPP);
 636         OBD_COUNTER_INCREMENT(obd, connect);
 637
 638         rc = OBP(obd, connect)(conn, obd, cluuid, connect_flags);
 639         RETURN(rc);
 640 }
 641
 642 static inline int obd_connect_post(struct obd_export *exp)
 643 {
 644         int rc;
 645         ENTRY;
 646
 647         OBD_CHECK_DEV_ACTIVE(exp->exp_obd);
 648         if (!OBT(exp->exp_obd) || !OBP((exp->exp_obd), connect_post))
 649                 RETURN(0);
 650         OBD_COUNTER_INCREMENT(exp->exp_obd, connect_post);
 651         rc = OBP(exp->exp_obd, connect_post)(exp);
 652         RETURN(rc);
 653 }
 654
 655 static inline int obd_disconnect(struct obd_export *exp, int flags)
 656 {
 657         int rc;
 658         ENTRY;
 659
 660         EXP_CHECK_OP(exp, disconnect);
 661         OBD_COUNTER_INCREMENT(exp->exp_obd, disconnect);
 662
 663         rc = OBP(exp->exp_obd, disconnect)(exp, flags);
 664         RETURN(rc);
 665 }
 666
 667 static inline int obd_init_export(struct obd_export *exp)
 668 {
 669         int rc = 0;
 670
 671         ENTRY;
 672         if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
 673             OBP((exp)->exp_obd, init_export))
 674                 rc = OBP(exp->exp_obd, init_export)(exp);
 675         RETURN(rc);
 676 }
 677
 678 static inline int obd_destroy_export(struct obd_export *exp)
 679 {
 680         ENTRY;
 681         if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
 682             OBP((exp)->exp_obd, destroy_export))
 683                 OBP(exp->exp_obd, destroy_export)(exp);
 684         RETURN(0);
 685 }
 686
 687 static inline struct dentry *
 688 obd_lvfs_fid2dentry(struct obd_export *exp, __u64 id_ino, __u32 gen, __u64 gr)
 689 {
 690         LASSERT(exp->exp_obd);
 691
 692         return lvfs_fid2dentry(&exp->exp_obd->obd_lvfs_ctxt, id_ino, gen, gr,
 693                                exp->exp_obd);
 694 }
 695
 696 #ifndef time_before
 697 #define time_before(t1, t2) ((long)t2 - (long)t1 > 0)
 698 #endif
 699
 700 /* @max_age is the oldest time in jiffies that we accept using a cached data.
 701  * If the cache is older than @max_age we will get a new value from the
 702  * target.  Use a value of "jiffies + HZ" to guarantee freshness. */
 703 static inline int obd_statfs(struct obd_device *obd, struct obd_statfs *osfs,
 704                              unsigned long max_age)
 705 {
 706         int rc = 0;
 707         ENTRY;
 708
 709         if (obd == NULL)
 710                 RETURN(-EINVAL);
 711
 712         OBD_CHECK_OP(obd, statfs, -EOPNOTSUPP);
 713         OBD_COUNTER_INCREMENT(obd, statfs);
 714
 715         CDEBUG(D_SUPER, "osfs %lu, max_age %lu\n", obd->obd_osfs_age, max_age);
 716         if (time_before(obd->obd_osfs_age, max_age)) {
 717                 rc = OBP(obd, statfs)(obd, osfs, max_age);
 718                 if (rc == 0) {
 719                         spin_lock(&obd->obd_osfs_lock);
 720                         memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
 721                         obd->obd_osfs_age = jiffies;
 722                         spin_unlock(&obd->obd_osfs_lock);
 723                 }
 724         } else {
 725                 CDEBUG(D_SUPER, "using cached obd_statfs data\n");
 726                 spin_lock(&obd->obd_osfs_lock);
 727                 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
 728                 spin_unlock(&obd->obd_osfs_lock);
 729         }
 730         RETURN(rc);
 731 }
 732
 733 static inline int obd_sync(struct obd_export *exp, struct obdo *oa,
 734                            struct lov_stripe_md *ea, obd_size start,
 735                            obd_size end)
 736 {
 737         int rc;
 738         ENTRY;
 739
 740         OBD_CHECK_OP(exp->exp_obd, sync, -EOPNOTSUPP);
 741         OBD_COUNTER_INCREMENT(exp->exp_obd, sync);
 742
 743         rc = OBP(exp->exp_obd, sync)(exp, oa, ea, start, end);
 744         RETURN(rc);
 745 }
 746
 747 static inline int obd_punch(struct obd_export *exp, struct obdo *oa,
 748                             struct lov_stripe_md *ea, obd_size start,
 749                             obd_size end, struct obd_trans_info *oti)
 750 {
 751         int rc;
 752         ENTRY;
 753
 754         EXP_CHECK_OP(exp, punch);
 755         OBD_COUNTER_INCREMENT(exp->exp_obd, punch);
 756
 757         rc = OBP(exp->exp_obd, punch)(exp, oa, ea, start, end, oti);
 758         RETURN(rc);
 759 }
 760
 761 static inline int obd_brw(int cmd, struct obd_export *exp, struct obdo *oa,
 762                           struct lov_stripe_md *ea, obd_count oa_bufs,
 763                           struct brw_page *pg, struct obd_trans_info *oti)
 764 {
 765         int rc;
 766         ENTRY;
 767
 768         EXP_CHECK_OP(exp, brw);
 769         OBD_COUNTER_INCREMENT(exp->exp_obd, brw);
 770
 771         if (!(cmd & (OBD_BRW_RWMASK | OBD_BRW_CHECK))) {
 772                 CERROR("obd_brw: cmd must be OBD_BRW_READ, OBD_BRW_WRITE, "
 773                        "or OBD_BRW_CHECK\n");
 774                 LBUG();
 775         }
 776
 777         rc = OBP(exp->exp_obd, brw)(cmd, exp, oa, ea, oa_bufs, pg, oti);
 778         RETURN(rc);
 779 }
 780
 781 static inline int obd_brw_async(int cmd, struct obd_export *exp,
 782                                 struct obdo *oa, struct lov_stripe_md *ea,
 783                                 obd_count oa_bufs, struct brw_page *pg,
 784                                 struct ptlrpc_request_set *set,
 785                                 struct obd_trans_info *oti)
 786 {
 787         int rc;
 788         ENTRY;
 789
 790         EXP_CHECK_OP(exp, brw_async);
 791         OBD_COUNTER_INCREMENT(exp->exp_obd, brw_async);
 792
 793         if (!(cmd & OBD_BRW_RWMASK)) {
 794                 CERROR("obd_brw: cmd must be OBD_BRW_READ or OBD_BRW_WRITE\n");
 795                 LBUG();
 796         }
 797
 798         rc = OBP(exp->exp_obd, brw_async)(cmd, exp, oa, ea, oa_bufs, pg, set,
 799                                           oti);
 800         RETURN(rc);
 801 }
 802
 803 static inline  int obd_prep_async_page(struct obd_export *exp,
 804                                        struct lov_stripe_md *lsm,
 805                                        struct lov_oinfo *loi,
 806                                        struct page *page, obd_off offset,
 807                                        struct obd_async_page_ops *ops,
 808                                        void *data, void **res)
 809 {
 810         int ret;
 811         ENTRY;
 812
 813         OBD_CHECK_OP(exp->exp_obd, prep_async_page, -EOPNOTSUPP);
 814         OBD_COUNTER_INCREMENT(exp->exp_obd, prep_async_page);
 815
 816         ret = OBP(exp->exp_obd, prep_async_page)(exp, lsm, loi, page, offset,
 817                                                  ops, data, res);
 818         RETURN(ret);
 819 }
 820
 821 static inline int obd_queue_async_io(struct obd_export *exp,
 822                                      struct lov_stripe_md *lsm,
 823                                      struct lov_oinfo *loi, void *cookie,
 824                                      int cmd, obd_off off, int count,
 825                                      obd_flag brw_flags, obd_flag async_flags)
 826 {
 827         int rc;
 828         ENTRY;
 829
 830         OBD_CHECK_OP(exp->exp_obd, queue_async_io, -EOPNOTSUPP);
 831         OBD_COUNTER_INCREMENT(exp->exp_obd, queue_async_io);
 832         LASSERT(cmd & OBD_BRW_RWMASK);
 833
 834         rc = OBP(exp->exp_obd, queue_async_io)(exp, lsm, loi, cookie, cmd, off,
 835                                                count, brw_flags, async_flags);
 836         RETURN(rc);
 837 }
 838
 839 static inline int obd_set_async_flags(struct obd_export *exp,
 840                                       struct lov_stripe_md *lsm,
 841                                       struct lov_oinfo *loi, void *cookie,
 842                                       obd_flag async_flags)
 843 {
 844         int rc;
 845         ENTRY;
 846
 847         OBD_CHECK_OP(exp->exp_obd, set_async_flags, -EOPNOTSUPP);
 848         OBD_COUNTER_INCREMENT(exp->exp_obd, set_async_flags);
 849
 850         rc = OBP(exp->exp_obd, set_async_flags)(exp, lsm, loi, cookie,
 851                                                 async_flags);
 852         RETURN(rc);
 853 }
 854
 855 static inline int obd_queue_group_io(struct obd_export *exp,
 856                                      struct lov_stripe_md *lsm,
 857                                      struct lov_oinfo *loi,
 858                                      struct obd_io_group *oig,
 859                                      void *cookie, int cmd, obd_off off,
 860                                      int count, obd_flag brw_flags,
 861                                      obd_flag async_flags)
 862 {
 863         int rc;
 864         ENTRY;
 865
 866         OBD_CHECK_OP(exp->exp_obd, queue_group_io, -EOPNOTSUPP);
 867         OBD_COUNTER_INCREMENT(exp->exp_obd, queue_group_io);
 868         LASSERT(cmd & OBD_BRW_RWMASK);
 869
 870         rc = OBP(exp->exp_obd, queue_group_io)(exp, lsm, loi, oig, cookie,
 871                                                cmd, off, count, brw_flags,
 872                                                async_flags);
 873         RETURN(rc);
 874 }
 875
 876 static inline int obd_trigger_group_io(struct obd_export *exp,
 877                                        struct lov_stripe_md *lsm,
 878                                        struct lov_oinfo *loi,
 879                                        struct obd_io_group *oig)
 880 {
 881         int rc;
 882         ENTRY;
 883
 884         OBD_CHECK_OP(exp->exp_obd, trigger_group_io, -EOPNOTSUPP);
 885         OBD_COUNTER_INCREMENT(exp->exp_obd, trigger_group_io);
 886
 887         rc = OBP(exp->exp_obd, trigger_group_io)(exp, lsm, loi, oig);
 888         RETURN(rc);
 889 }
 890
 891 static inline int obd_teardown_async_page(struct obd_export *exp,
 892                                           struct lov_stripe_md *lsm,
 893                                           struct lov_oinfo *loi, void *cookie)
 894 {
 895         int rc;
 896         ENTRY;
 897
 898         OBD_CHECK_OP(exp->exp_obd, teardown_async_page, -EOPNOTSUPP);
 899         OBD_COUNTER_INCREMENT(exp->exp_obd, teardown_async_page);
 900
 901         rc = OBP(exp->exp_obd, teardown_async_page)(exp, lsm, loi, cookie);
 902         RETURN(rc);
 903 }
 904
 905 static inline int obd_preprw(int cmd, struct obd_export *exp, struct obdo *oa,
 906                              int objcount, struct obd_ioobj *obj,
 907                              int niocount, struct niobuf_remote *remote,
 908                              struct niobuf_local *local,
 909                              struct obd_trans_info *oti)
 910 {
 911         int rc;
 912         ENTRY;
 913
 914         OBD_CHECK_OP(exp->exp_obd, preprw, -EOPNOTSUPP);
 915         OBD_COUNTER_INCREMENT(exp->exp_obd, preprw);
 916
 917         rc = OBP(exp->exp_obd, preprw)(cmd, exp, oa, objcount, obj, niocount,
 918                                        remote, local, oti);
 919         RETURN(rc);
 920 }
 921
 922 static inline int obd_commitrw(int cmd, struct obd_export *exp, struct obdo *oa,
 923                                int objcount, struct obd_ioobj *obj,
 924                                int niocount, struct niobuf_local *local,
 925                                struct obd_trans_info *oti, int rc)
 926 {
 927         ENTRY;
 928
 929         OBD_CHECK_OP(exp->exp_obd, commitrw, -EOPNOTSUPP);
 930         OBD_COUNTER_INCREMENT(exp->exp_obd, commitrw);
 931
 932         rc = OBP(exp->exp_obd, commitrw)(cmd, exp, oa, objcount, obj, niocount,
 933                                          local, oti, rc);
 934         RETURN(rc);
 935 }
 936
 937 static inline int obd_do_cow(struct obd_export *exp, struct obd_ioobj *obj,
 938                             int objcount,struct niobuf_remote *rnb)
 939 {
 940         int rc;
 941         ENTRY;
 942
 943         /* there are cases when write_extents is not implemented. */
 944         if (!OBP(exp->exp_obd, do_cow))
 945                 RETURN(0);
 946
 947         OBD_COUNTER_INCREMENT(exp->exp_obd, do_cow);
 948
 949         rc = OBP(exp->exp_obd, do_cow)(exp, obj, objcount, rnb);
 950
 951         RETURN(rc);
 952 }
 953
 954 static inline int obd_write_extents(struct obd_export *exp,
 955                                     struct obd_ioobj *obj,
 956                                     int objcount, int niocount,
 957                                     struct niobuf_local *local,
 958                                     int rc)
 959 {
 960         ENTRY;
 961
 962         /* there are cases when write_extents is not implemented. */
 963         if (!OBP(exp->exp_obd, write_extents))
 964                 RETURN(0);
 965
 966         OBD_COUNTER_INCREMENT(exp->exp_obd, write_extents);
 967
 968         rc = OBP(exp->exp_obd, write_extents)(exp, obj, objcount, niocount,
 969                                               local, rc);
 970         RETURN(rc);
 971 }
 972
 973 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
 974                                 int len, void *karg, void *uarg)
 975 {
 976         int rc;
 977         ENTRY;
 978
 979         EXP_CHECK_OP(exp, iocontrol);
 980         OBD_COUNTER_INCREMENT(exp->exp_obd, iocontrol);
 981
 982         rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
 983         RETURN(rc);
 984 }
 985
 986 static inline int obd_enqueue(struct obd_export *exp, struct lov_stripe_md *ea,
 987                               __u32 type, ldlm_policy_data_t *policy,
 988                               __u32 mode, int *flags, void *bl_cb, void *cp_cb,
 989                               void *gl_cb, void *data, __u32 lvb_len,
 990                               void *lvb_swabber, struct lustre_handle *lockh)
 991 {
 992         int rc;
 993         ENTRY;
 994
 995         EXP_CHECK_OP(exp, enqueue);
 996         OBD_COUNTER_INCREMENT(exp->exp_obd, enqueue);
 997
 998         rc = OBP(exp->exp_obd, enqueue)(exp, ea, type, policy, mode, flags,
 999                                         bl_cb, cp_cb, gl_cb, data, lvb_len,
1000                                         lvb_swabber, lockh);
1001         RETURN(rc);
1002 }
1003
1004 static inline int obd_match(struct obd_export *exp, struct lov_stripe_md *ea,
1005                             __u32 type, ldlm_policy_data_t *policy, __u32 mode,
1006                             int *flags, void *data, struct lustre_handle *lockh)
1007 {
1008         int rc;
1009         ENTRY;
1010
1011         EXP_CHECK_OP(exp, match);
1012         OBD_COUNTER_INCREMENT(exp->exp_obd, match);
1013
1014         rc = OBP(exp->exp_obd, match)(exp, ea, type, policy, mode, flags, data,
1015                                       lockh);
1016         RETURN(rc);
1017 }
1018
1019 static inline int obd_change_cbdata(struct obd_export *exp,
1020                                     struct lov_stripe_md *lsm,
1021                                     ldlm_iterator_t it, void *data)
1022 {
1023         int rc;
1024         ENTRY;
1025
1026         EXP_CHECK_OP(exp, change_cbdata);
1027         OBD_COUNTER_INCREMENT(exp->exp_obd, change_cbdata);
1028
1029         rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data);
1030         RETURN(rc);
1031 }
1032
1033 static inline int obd_cancel(struct obd_export *exp,
1034                              struct lov_stripe_md *ea, __u32 mode,
1035                              struct lustre_handle *lockh)
1036 {
1037         int rc;
1038         ENTRY;
1039
1040         EXP_CHECK_OP(exp, cancel);
1041         OBD_COUNTER_INCREMENT(exp->exp_obd, cancel);
1042
1043         rc = OBP(exp->exp_obd, cancel)(exp, ea, mode, lockh);
1044         RETURN(rc);
1045 }
1046
1047 static inline int obd_cancel_unused(struct obd_export *exp,
1048                                     struct lov_stripe_md *ea, int flags,
1049                                     void *opaque)
1050 {
1051         int rc;
1052         ENTRY;
1053
1054         EXP_CHECK_OP(exp, cancel_unused);
1055         OBD_COUNTER_INCREMENT(exp->exp_obd, cancel_unused);
1056
1057         rc = OBP(exp->exp_obd, cancel_unused)(exp, ea, flags, opaque);
1058         RETURN(rc);
1059 }
1060
1061
1062 static inline int obd_san_preprw(int cmd, struct obd_export *exp,
1063                                  struct obdo *oa,
1064                                  int objcount, struct obd_ioobj *obj,
1065                                  int niocount, struct niobuf_remote *remote)
1066 {
1067         int rc;
1068
1069         EXP_CHECK_OP(exp, preprw);
1070         OBD_COUNTER_INCREMENT(exp->exp_obd, preprw);
1071
1072         rc = OBP(exp->exp_obd, san_preprw)(cmd, exp, oa, objcount, obj,
1073                                            niocount, remote);
1074         class_export_put(exp);
1075         return(rc);
1076 }
1077
1078 static inline int obd_pin(struct obd_export *exp, obd_id ino, __u32 gen,
1079                           int type, struct obd_client_handle *handle, int flag)
1080 {
1081         int rc;
1082
1083         EXP_CHECK_OP(exp, pin);
1084         OBD_COUNTER_INCREMENT(exp->exp_obd, pin);
1085
1086         rc = OBP(exp->exp_obd, pin)(exp, ino, gen, type, handle, flag);
1087         return(rc);
1088 }
1089
1090 static inline int obd_unpin(struct obd_export *exp,
1091                             struct obd_client_handle *handle, int flag)
1092 {
1093         int rc;
1094
1095         EXP_CHECK_OP(exp, unpin);
1096         OBD_COUNTER_INCREMENT(exp->exp_obd, unpin);
1097
1098         rc = OBP(exp->exp_obd, unpin)(exp, handle, flag);
1099         return(rc);
1100 }
1101
1102
1103 static inline void obd_import_event(struct obd_device *obd,
1104                                     struct obd_import *imp,
1105                                     enum obd_import_event event)
1106 {
1107         if (obd->obd_set_up && OBP(obd, import_event)) {
1108                 OBD_COUNTER_INCREMENT(obd, import_event);
1109                 OBP(obd, import_event)(obd, imp, event);
1110         }
1111 }
1112
1113 static inline int obd_llog_connect(struct obd_export *exp,
1114                                         struct llogd_conn_body *body)
1115 {
1116         ENTRY;
1117         EXP_CHECK_OP(exp, llog_connect);
1118         return OBP(exp->exp_obd, llog_connect)(exp, body);
1119 }
1120
1121 static inline int obd_notify(struct obd_device *obd, struct obd_device *watched,
1122                              int active, void *data)
1123 {
1124         if (!obd->obd_set_up) {
1125                 CERROR("obd %s not set up\n", obd->obd_name);
1126                 return -EINVAL;
1127         }
1128
1129         if (!OBP(obd, notify)) {
1130                 CERROR("obd %s has no notify handler\n", obd->obd_name);
1131                 return -ENOSYS;
1132         }
1133
1134         OBD_COUNTER_INCREMENT(obd, notify);
1135         return OBP(obd, notify)(obd, watched, active, data);
1136 }
1137
1138 static inline int obd_register_observer(struct obd_device *obd,
1139                                         struct obd_device *observer)
1140 {
1141         ENTRY;
1142         if (obd->obd_observer && observer)
1143                 RETURN(-EALREADY);
1144         obd->obd_observer = observer;
1145         RETURN(0);
1146 }
1147
1148 static inline int obd_init_ea_size(struct obd_export *exp, int size, int size2)
1149 {
1150         int rc;
1151         ENTRY;
1152         LASSERT(OBP(exp->exp_obd, init_ea_size) != NULL);
1153         OBD_COUNTER_INCREMENT(exp->exp_obd, init_ea_size);
1154         rc = OBP(exp->exp_obd, init_ea_size)(exp, size, size2);
1155         RETURN(rc);
1156 }
1157 static inline int md_getstatus(struct obd_export *exp, struct ll_fid *fid)
1158 {
1159         int rc;
1160
1161         EXP_CHECK_MD_OP(exp, getstatus);
1162         MD_COUNTER_INCREMENT(exp->exp_obd, getstatus);
1163         rc = MDP(exp->exp_obd, getstatus)(exp, fid);
1164         RETURN(rc);
1165 }
1166
1167 /* this function notifies MDC, that inode described by @fid gets removed from
1168  * memory.*/
1169 static inline int md_delete_object(struct obd_export *exp,
1170                                    struct ll_fid *fid)
1171 {
1172         int rc;
1173         ENTRY;
1174
1175         /* as this method only notifies MDC that inode gets deleted, we can
1176          * return zero if method is not implemented, this means, that OBD does
1177          * not need such a notification. */
1178         if (MDP(exp->exp_obd, delete_object) == NULL)
1179                 RETURN(0);
1180
1181         MD_COUNTER_INCREMENT(exp->exp_obd, delete_object);
1182         rc = MDP(exp->exp_obd, delete_object)(exp, fid);
1183         RETURN(rc);
1184 }
1185
1186 static inline int md_getattr(struct obd_export *exp, struct ll_fid *fid,
1187                              unsigned long valid, unsigned int ea_size,
1188                              struct ptlrpc_request **request)
1189 {
1190         int rc;
1191         ENTRY;
1192         EXP_CHECK_MD_OP(exp, getattr);
1193         MD_COUNTER_INCREMENT(exp->exp_obd, getattr);
1194         rc = MDP(exp->exp_obd, getattr)(exp, fid, valid, ea_size, request);
1195         RETURN(rc);
1196 }
1197
1198 static inline int md_change_cbdata(struct obd_export *exp, struct ll_fid *fid,
1199                                    ldlm_iterator_t it, void *data)
1200 {
1201         int rc;
1202         ENTRY;
1203         EXP_CHECK_MD_OP(exp, change_cbdata);
1204         MD_COUNTER_INCREMENT(exp->exp_obd, change_cbdata);
1205         rc = MDP(exp->exp_obd, change_cbdata)(exp, fid, it, data);
1206         RETURN(rc);
1207 }
1208
1209 static inline int md_change_cbdata_name(struct obd_export *exp,
1210                                         struct ll_fid *fid, char *name,
1211                                         int namelen, struct ll_fid *fid2,
1212                                         ldlm_iterator_t it, void *data)
1213 {
1214         int rc;
1215
1216         /* this seem to be needed only for lmv. */
1217         if (!MDP(exp->exp_obd, change_cbdata_name))
1218                 return 0;
1219
1220         ENTRY;
1221
1222         MD_COUNTER_INCREMENT(exp->exp_obd, change_cbdata_name);
1223         rc = MDP(exp->exp_obd, change_cbdata_name)(exp, fid, name, namelen,
1224                                                    fid2, it, data);
1225         RETURN(rc);
1226 }
1227
1228 static inline int md_close(struct obd_export *exp, struct obdo *obdo,
1229                            struct obd_client_handle *och,
1230                            struct ptlrpc_request **request)
1231 {
1232         int rc;
1233         ENTRY;
1234         EXP_CHECK_MD_OP(exp, close);
1235         MD_COUNTER_INCREMENT(exp->exp_obd, close);
1236         rc = MDP(exp->exp_obd, close)(exp, obdo, och, request);
1237         RETURN(rc);
1238 }
1239
1240 static inline int md_create(struct obd_export *exp, struct mdc_op_data *op_data,
1241                             const void *data, int datalen, int mode,
1242                             __u32 uid, __u32 gid, __u64 rdev,
1243                             struct ptlrpc_request **request)
1244 {
1245         int rc;
1246         ENTRY;
1247         EXP_CHECK_MD_OP(exp, create);
1248         MD_COUNTER_INCREMENT(exp->exp_obd, create);
1249         rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
1250                                        uid, gid, rdev, request);
1251         RETURN(rc);
1252 }
1253
1254 static inline int md_done_writing(struct obd_export *exp, struct obdo *obdo)
1255 {
1256         int rc;
1257         ENTRY;
1258         EXP_CHECK_MD_OP(exp, done_writing);
1259         MD_COUNTER_INCREMENT(exp->exp_obd, done_writing);
1260         rc = MDP(exp->exp_obd, done_writing)(exp, obdo);
1261         RETURN(rc);
1262 }
1263
1264 static inline int md_enqueue(struct obd_export *exp, int lock_type,
1265                              struct lookup_intent *it, int lock_mode,
1266                              struct mdc_op_data *data,
1267                              struct lustre_handle *lockh,
1268                              void *lmm, int lmmsize,
1269                              ldlm_completion_callback cb_completion,
1270                              ldlm_blocking_callback cb_blocking,
1271                              void *cb_data)
1272 {
1273         int rc;
1274         ENTRY;
1275         EXP_CHECK_MD_OP(exp, enqueue);
1276         MD_COUNTER_INCREMENT(exp->exp_obd, enqueue);
1277         rc = MDP(exp->exp_obd, enqueue)(exp, lock_type, it, lock_mode,
1278                                         data, lockh, lmm, lmmsize,
1279                                         cb_completion, cb_blocking,
1280                                         cb_data);
1281         RETURN(rc);
1282 }
1283
1284 static inline int md_getattr_name(struct obd_export *exp, struct ll_fid *fid,
1285                                   char *filename, int namelen,
1286                                   unsigned long valid, unsigned int ea_size,
1287                                   struct ptlrpc_request **request)
1288 {
1289         int rc;
1290         ENTRY;
1291         EXP_CHECK_MD_OP(exp, getattr_name);
1292         MD_COUNTER_INCREMENT(exp->exp_obd, getattr_name);
1293         rc = MDP(exp->exp_obd, getattr_name)(exp, fid, filename, namelen,
1294                                              valid, ea_size, request);
1295         RETURN(rc);
1296 }
1297
1298 static inline int md_intent_lock(struct obd_export *exp, struct ll_uctxt *uctxt,
1299                                  struct ll_fid *pfid, const char *name,
1300                                  int len, void *lmm, int lmmsize,
1301                                  struct ll_fid *cfid, struct lookup_intent *it,
1302                                  int flags, struct ptlrpc_request **reqp,
1303                                  ldlm_blocking_callback cb_blocking)
1304 {
1305         int rc;
1306         ENTRY;
1307         EXP_CHECK_MD_OP(exp, intent_lock);
1308         MD_COUNTER_INCREMENT(exp->exp_obd, intent_lock);
1309         rc = MDP(exp->exp_obd, intent_lock)(exp, uctxt, pfid, name, len,
1310                                             lmm, lmmsize, cfid, it, flags,
1311                                             reqp, cb_blocking);
1312         RETURN(rc);
1313 }
1314
1315 static inline int md_link(struct obd_export *exp, struct mdc_op_data *data,
1316                           struct ptlrpc_request **request)
1317 {
1318         int rc;
1319         ENTRY;
1320         EXP_CHECK_MD_OP(exp, link);
1321         MD_COUNTER_INCREMENT(exp->exp_obd, link);
1322         rc = MDP(exp->exp_obd, link)(exp, data, request);
1323         RETURN(rc);
1324 }
1325
1326 static inline int md_rename(struct obd_export *exp, struct mdc_op_data *data,
1327                             const char *old, int oldlen,
1328                             const char *new, int newlen,
1329                             struct ptlrpc_request **request)
1330 {
1331         int rc;
1332         ENTRY;
1333         EXP_CHECK_MD_OP(exp, rename);
1334         MD_COUNTER_INCREMENT(exp->exp_obd, rename);
1335         rc = MDP(exp->exp_obd, rename)(exp, data, old, oldlen, new,
1336                                        newlen, request);
1337         RETURN(rc);
1338 }
1339
1340 static inline int md_setattr(struct obd_export *exp, struct mdc_op_data *data,
1341                              struct iattr *iattr, void *ea, int ealen,
1342                              void *ea2, int ea2len,
1343                              struct ptlrpc_request **request)
1344 {
1345         int rc;
1346         ENTRY;
1347         EXP_CHECK_MD_OP(exp, setattr);
1348         MD_COUNTER_INCREMENT(exp->exp_obd, setattr);
1349         rc = MDP(exp->exp_obd, setattr)(exp, data, iattr, ea, ealen,
1350                                         ea2, ea2len, request);
1351         RETURN(rc);
1352 }
1353
1354 static inline int md_sync(struct obd_export *exp, struct ll_fid *fid,
1355                                struct ptlrpc_request **request)
1356 {
1357         int rc;
1358         ENTRY;
1359         EXP_CHECK_MD_OP(exp, sync);
1360         MD_COUNTER_INCREMENT(exp->exp_obd, sync);
1361         rc = MDP(exp->exp_obd, sync)(exp, fid, request);
1362         RETURN(rc);
1363 }
1364
1365 static inline int md_readpage(struct obd_export *exp, struct ll_fid *fid,
1366                               __u64 offset, struct page *page,
1367                               struct ptlrpc_request **request)
1368 {
1369         int rc;
1370         ENTRY;
1371         EXP_CHECK_MD_OP(exp, readpage);
1372         MD_COUNTER_INCREMENT(exp->exp_obd, readpage);
1373         rc = MDP(exp->exp_obd, readpage)(exp, fid, offset, page, request);
1374         RETURN(rc);
1375 }
1376
1377 static inline int md_unlink(struct obd_export *exp, struct mdc_op_data *data,
1378                             struct ptlrpc_request **request)
1379 {
1380         int rc;
1381         ENTRY;
1382         EXP_CHECK_MD_OP(exp, unlink);
1383         MD_COUNTER_INCREMENT(exp->exp_obd, unlink);
1384         rc = MDP(exp->exp_obd, unlink)(exp, data, request);
1385         RETURN(rc);
1386 }
1387
1388 static inline struct obd_device *md_get_real_obd(struct obd_export *exp,
1389                                                  char *name, int len)
1390 {
1391         ENTRY;
1392         if (MDP(exp->exp_obd, get_real_obd) == NULL)
1393                 return exp->exp_obd;
1394         MD_COUNTER_INCREMENT(exp->exp_obd, get_real_obd);
1395         return MDP(exp->exp_obd, get_real_obd)(exp, name, len);
1396 }
1397
1398 static inline int md_valid_attrs(struct obd_export *exp, struct ll_fid *fid)
1399 {
1400         ENTRY;
1401         EXP_CHECK_MD_OP(exp, valid_attrs);
1402         MD_COUNTER_INCREMENT(exp->exp_obd, valid_attrs);
1403         return MDP(exp->exp_obd, valid_attrs)(exp, fid);
1404 }
1405
1406 static inline int md_req2lustre_md(struct obd_export *exp,
1407                                    struct ptlrpc_request *req,
1408                                    unsigned int offset,
1409                                    struct obd_export *osc_exp,
1410                                    struct lustre_md *md)
1411 {
1412         ENTRY;
1413         EXP_CHECK_MD_OP(exp, req2lustre_md);
1414         MD_COUNTER_INCREMENT(exp->exp_obd, req2lustre_md);
1415         return MDP(exp->exp_obd, req2lustre_md)(exp, req, offset, osc_exp, md);
1416 }
1417
1418 static inline int md_set_open_replay_data(struct obd_export *exp,
1419                                           struct obd_client_handle *och,
1420                                           struct ptlrpc_request *open_req)
1421 {
1422         ENTRY;
1423         EXP_CHECK_MD_OP(exp, set_open_replay_data);
1424         MD_COUNTER_INCREMENT(exp->exp_obd, set_open_replay_data);
1425         return MDP(exp->exp_obd, set_open_replay_data)(exp, och, open_req);
1426 }
1427
1428 static inline int md_clear_open_replay_data(struct obd_export *exp,
1429                                             struct obd_client_handle *och)
1430 {
1431         ENTRY;
1432         EXP_CHECK_MD_OP(exp, clear_open_replay_data);
1433         MD_COUNTER_INCREMENT(exp->exp_obd, clear_open_replay_data);
1434         return MDP(exp->exp_obd, clear_open_replay_data)(exp, och);
1435 }
1436
1437 static inline int md_store_inode_generation(struct obd_export *exp,
1438                                             struct ptlrpc_request *req,
1439                                             int reqoff, int repoff)
1440 {
1441         ENTRY;
1442         EXP_CHECK_MD_OP(exp, store_inode_generation);
1443         MD_COUNTER_INCREMENT(exp->exp_obd, store_inode_generation);
1444         return MDP(exp->exp_obd, store_inode_generation)(exp, req,
1445                    reqoff, repoff);
1446 }
1447
1448 static inline int md_set_lock_data(struct obd_export *exp, __u64 *l, void *data)
1449 {
1450         ENTRY;
1451         EXP_CHECK_MD_OP(exp, set_lock_data);
1452         MD_COUNTER_INCREMENT(exp->exp_obd, set_lock_data);
1453         return MDP(exp->exp_obd, set_lock_data)(exp, l, data);
1454 }
1455
1456 /* OBD Metadata Support */
1457
1458 extern int obd_init_caches(void);
1459 extern void obd_cleanup_caches(void);
1460
1461 /* support routines */
1462 extern kmem_cache_t *obdo_cachep;
1463 static inline struct obdo *obdo_alloc(void)
1464 {
1465         struct obdo *oa;
1466
1467         OBD_SLAB_ALLOC(oa, obdo_cachep, GFP_KERNEL, sizeof(*oa));
1468
1469         return oa;
1470 }
1471
1472 static inline void obdo_free(struct obdo *oa)
1473 {
1474         if (!oa)
1475                 return;
1476         OBD_SLAB_FREE(oa, obdo_cachep, sizeof(*oa));
1477 }
1478
1479 #if !defined(__KERNEL__) || (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
1480 #define to_kdev_t(dev) dev
1481 #define kdev_t_to_nr(dev) dev
1482 #endif
1483
1484 /* I'm as embarrassed about this as you are.
1485  *
1486  * <shaver> // XXX do not look into _superhack with remaining eye
1487  * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
1488 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
1489 extern void (*ptlrpc_abort_inflight_superhack)(struct obd_import *imp);
1490
1491 /* sysctl.c */
1492 extern void obd_sysctl_init (void);
1493 extern void obd_sysctl_clean (void);
1494
1495 /* uuid.c  */
1496 typedef __u8 class_uuid_t[16];
1497 //int class_uuid_parse(struct obd_uuid in, class_uuid_t out);
1498 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
1499
1500 /* lustre_peer.c    */
1501 int lustre_uuid_to_peer(char *uuid, __u32 *peer_nal, ptl_nid_t *peer_nid);
1502 int class_add_uuid(char *uuid, __u64 nid, __u32 nal);
1503 int class_del_uuid (char *uuid);
1504 void class_init_uuidlist(void);
1505 void class_exit_uuidlist(void);
1506
1507 /* mea.c */
1508 int mea_name2idx(struct mea *mea, char *name, int namelen);
1509 int raw_name2idx(int hashtype, int count, const char *name, int namelen);
1510
1511 #endif /* __LINUX_OBD_CLASS_H */