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