lustre/obdclass/class_obd.c

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  * Object Devices Class Driver
   5  *
   6  *  Copyright (C) 2001-2003 Cluster File Systems, Inc.
   7  *
   8  *   This file is part of the Lustre file system, http://www.lustre.org
   9  *   Lustre is a trademark of Cluster File Systems, Inc.
  10  *
  11  *   You may have signed or agreed to another license before downloading
  12  *   this software.  If so, you are bound by the terms and conditions
  13  *   of that agreement, and the following does not apply to you.  See the
  14  *   LICENSE file included with this distribution for more information.
  15  *
  16  *   If you did not agree to a different license, then this copy of Lustre
  17  *   is open source software; you can redistribute it and/or modify it
  18  *   under the terms of version 2 of the GNU General Public License as
  19  *   published by the Free Software Foundation.
  20  *
  21  *   In either case, Lustre is distributed in the hope that it will be
  22  *   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  23  *   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24  *   license text for more details.
  25  *
  26  * These are the only exported functions, they provide some generic
  27  * infrastructure for managing object devices
  28  */
  29
  30 #define DEBUG_SUBSYSTEM S_CLASS
  31 #ifndef EXPORT_SYMTAB
  32 # define EXPORT_SYMTAB
  33 #endif
  34 #ifndef __KERNEL__
  35 # include <liblustre.h>
  36 #endif
  37
  38 #include <obd_support.h>
  39 #include <obd_class.h>
  40 #include <lustre_debug.h>
  41 #include <lprocfs_status.h>
  42 #ifdef __KERNEL__
  43 #include <linux/lustre_build_version.h>
  44 #endif
  45 #include <libcfs/list.h>
  46 #include <lustre_ver.h>
  47 #include "llog_internal.h"
  48
  49 #ifndef __KERNEL__
  50 /* liblustre workaround */
  51 atomic_t libcfs_kmemory = {0};
  52 #endif
  53
  54 struct obd_device *obd_devs[MAX_OBD_DEVICES];
  55 struct list_head obd_types;
  56 spinlock_t obd_dev_lock = SPIN_LOCK_UNLOCKED;
  57 #ifndef __KERNEL__
  58 atomic_t obd_memory;
  59 int obd_memmax;
  60 #endif
  61
  62 /* The following are visible and mutable through /proc/sys/lustre/. */
  63 unsigned int obd_fail_loc;
  64 unsigned int obd_dump_on_timeout;
  65 unsigned int obd_dump_on_eviction;
  66 unsigned int obd_timeout = 100; /* seconds */
  67 unsigned int ldlm_timeout = 20; /* seconds */
  68 unsigned int obd_health_check_timeout = 120; /* seconds */
  69
  70 cfs_waitq_t obd_race_waitq;
  71 int obd_race_state;
  72
  73 #ifdef __KERNEL__
  74 unsigned int obd_print_fail_loc(void)
  75 {
  76         CWARN("obd_fail_loc = %x\n", obd_fail_loc);
  77         return obd_fail_loc;
  78 }
  79
  80 void obd_set_fail_loc(unsigned int fl)
  81 {
  82         obd_fail_loc = fl;
  83 }
  84
  85 /*  opening /dev/obd */
  86 static int obd_class_open(unsigned long flags, void *args)
  87 {
  88         ENTRY;
  89
  90         PORTAL_MODULE_USE;
  91         RETURN(0);
  92 }
  93
  94 /*  closing /dev/obd */
  95 static int obd_class_release(unsigned long flags, void *args)
  96 {
  97         ENTRY;
  98
  99         PORTAL_MODULE_UNUSE;
 100         RETURN(0);
 101 }
 102 #endif
 103
 104 static inline void obd_data2conn(struct lustre_handle *conn,
 105                                  struct obd_ioctl_data *data)
 106 {
 107         memset(conn, 0, sizeof *conn);
 108         conn->cookie = data->ioc_cookie;
 109 }
 110
 111 static inline void obd_conn2data(struct obd_ioctl_data *data,
 112                                  struct lustre_handle *conn)
 113 {
 114         data->ioc_cookie = conn->cookie;
 115 }
 116
 117 int class_resolve_dev_name(uint32_t len, const char *name)
 118 {
 119         int rc;
 120         int dev;
 121
 122         ENTRY;
 123         if (!len || !name) {
 124                 CERROR("No name passed,!\n");
 125                 GOTO(out, rc = -EINVAL);
 126         }
 127         if (name[len - 1] != 0) {
 128                 CERROR("Name not nul terminated!\n");
 129                 GOTO(out, rc = -EINVAL);
 130         }
 131
 132         CDEBUG(D_IOCTL, "device name %s\n", name);
 133         dev = class_name2dev(name);
 134         if (dev == -1) {
 135                 CDEBUG(D_IOCTL, "No device for name %s!\n", name);
 136                 GOTO(out, rc = -EINVAL);
 137         }
 138
 139         CDEBUG(D_IOCTL, "device name %s, dev %d\n", name, dev);
 140         rc = dev;
 141
 142 out:
 143         RETURN(rc);
 144 }
 145
 146 int class_handle_ioctl(unsigned int cmd, unsigned long arg)
 147 {
 148         char *buf = NULL;
 149         struct obd_ioctl_data *data;
 150         struct libcfs_debug_ioctl_data *debug_data;
 151         struct obd_device *obd = NULL;
 152         int err = 0, len = 0;
 153         ENTRY;
 154
 155         /* only for debugging */
 156         if (cmd == LIBCFS_IOC_DEBUG_MASK) {
 157                 debug_data = (struct libcfs_debug_ioctl_data*)arg;
 158                 libcfs_subsystem_debug = debug_data->subs;
 159                 libcfs_debug = debug_data->debug;
 160                 return 0;
 161         }
 162
 163         CDEBUG(D_IOCTL, "cmd = %x\n", cmd);
 164         if (obd_ioctl_getdata(&buf, &len, (void *)arg)) {
 165                 CERROR("OBD ioctl: data error\n");
 166                 GOTO(out, err = -EINVAL);
 167         }
 168         data = (struct obd_ioctl_data *)buf;
 169
 170         switch (cmd) {
 171         case OBD_IOC_PROCESS_CFG: {
 172                 struct lustre_cfg *lcfg;
 173
 174                 if (!data->ioc_plen1 || !data->ioc_pbuf1) {
 175                         CERROR("No config buffer passed!\n");
 176                         GOTO(out, err = -EINVAL);
 177                 }
 178                 OBD_ALLOC(lcfg, data->ioc_plen1);
 179                 err = copy_from_user(lcfg, data->ioc_pbuf1, data->ioc_plen1);
 180                 if (err) {
 181                         OBD_FREE(lcfg, data->ioc_plen1);
 182                         GOTO(out, err);
 183                 }
 184                 err = lustre_cfg_sanity_check(lcfg, data->ioc_plen1);
 185                 if (err) {
 186                         OBD_FREE(lcfg, data->ioc_plen1);
 187                         GOTO(out, err);
 188                 }
 189                 err = class_process_config(lcfg);
 190
 191                 OBD_FREE(lcfg, data->ioc_plen1);
 192                 GOTO(out, err);
 193         }
 194
 195         case OBD_GET_VERSION:
 196                 if (!data->ioc_inlbuf1) {
 197                         CERROR("No buffer passed in ioctl\n");
 198                         GOTO(out, err = -EINVAL);
 199                 }
 200
 201                 if (strlen(BUILD_VERSION) + 1 > data->ioc_inllen1) {
 202                         CERROR("ioctl buffer too small to hold version\n");
 203                         GOTO(out, err = -EINVAL);
 204                 }
 205
 206                 memcpy(data->ioc_bulk, BUILD_VERSION,
 207                        strlen(BUILD_VERSION) + 1);
 208
 209                 err = obd_ioctl_popdata((void *)arg, data, len);
 210                 if (err)
 211                         err = -EFAULT;
 212                 GOTO(out, err);
 213
 214         case OBD_IOC_NAME2DEV: {
 215                 /* Resolve a device name.  This does not change the
 216                  * currently selected device.
 217                  */
 218                 int dev;
 219
 220                 dev = class_resolve_dev_name(data->ioc_inllen1,
 221                                              data->ioc_inlbuf1);
 222                 data->ioc_dev = dev;
 223                 if (dev < 0)
 224                         GOTO(out, err = -EINVAL);
 225
 226                 err = obd_ioctl_popdata((void *)arg, data, sizeof(*data));
 227                 if (err)
 228                         err = -EFAULT;
 229                 GOTO(out, err);
 230         }
 231
 232         case OBD_IOC_UUID2DEV: {
 233                 /* Resolve a device uuid.  This does not change the
 234                  * currently selected device.
 235                  */
 236                 int dev;
 237                 struct obd_uuid uuid;
 238
 239                 if (!data->ioc_inllen1 || !data->ioc_inlbuf1) {
 240                         CERROR("No UUID passed!\n");
 241                         GOTO(out, err = -EINVAL);
 242                 }
 243                 if (data->ioc_inlbuf1[data->ioc_inllen1 - 1] != 0) {
 244                         CERROR("UUID not NUL terminated!\n");
 245                         GOTO(out, err = -EINVAL);
 246                 }
 247
 248                 CDEBUG(D_IOCTL, "device name %s\n", data->ioc_inlbuf1);
 249                 obd_str2uuid(&uuid, data->ioc_inlbuf1);
 250                 dev = class_uuid2dev(&uuid);
 251                 data->ioc_dev = dev;
 252                 if (dev == -1) {
 253                         CDEBUG(D_IOCTL, "No device for UUID %s!\n",
 254                                data->ioc_inlbuf1);
 255                         GOTO(out, err = -EINVAL);
 256                 }
 257
 258                 CDEBUG(D_IOCTL, "device name %s, dev %d\n", data->ioc_inlbuf1,
 259                        dev);
 260                 err = obd_ioctl_popdata((void *)arg, data, sizeof(*data));
 261                 if (err)
 262                         err = -EFAULT;
 263                 GOTO(out, err);
 264         }
 265
 266         case OBD_IOC_CLOSE_UUID: {
 267                 CDEBUG(D_IOCTL, "closing all connections to uuid %s (NOOP)\n",
 268                        data->ioc_inlbuf1);
 269                 GOTO(out, err = 0);
 270         }
 271
 272         case OBD_IOC_GETDEVICE: {
 273                 int     index = data->ioc_count;
 274                 char    *status, *str;
 275
 276                 if (!data->ioc_inlbuf1) {
 277                         CERROR("No buffer passed in ioctl\n");
 278                         GOTO(out, err = -EINVAL);
 279                 }
 280                 if (data->ioc_inllen1 < 128) {
 281                         CERROR("ioctl buffer too small to hold version\n");
 282                         GOTO(out, err = -EINVAL);
 283                 }
 284
 285                 obd = class_num2obd(index);
 286                 if (!obd)
 287                         GOTO(out, err = -ENOENT);
 288
 289                 if (obd->obd_stopping)
 290                         status = "ST";
 291                 else if (obd->obd_set_up)
 292                         status = "UP";
 293                 else if (obd->obd_attached)
 294                         status = "AT";
 295                 else
 296                         status = "--";
 297                 str = (char *)data->ioc_bulk;
 298                 snprintf(str, len - sizeof(*data), "%3d %s %s %s %s %d",
 299                          (int)index, status, obd->obd_type->typ_name,
 300                          obd->obd_name, obd->obd_uuid.uuid,
 301                          atomic_read(&obd->obd_refcount));
 302                 err = obd_ioctl_popdata((void *)arg, data, len);
 303
 304                 GOTO(out, err = 0);
 305         }
 306
 307         }
 308
 309         if (data->ioc_dev >= class_devno_max()) {
 310                 CERROR("OBD ioctl: No device\n");
 311                 GOTO(out, err = -EINVAL);
 312         }
 313
 314         obd = class_num2obd(data->ioc_dev);
 315         if (obd == NULL) {
 316                 CERROR("OBD ioctl : No Device %d\n", data->ioc_dev);
 317                 GOTO(out, err = -EINVAL);
 318         }
 319         LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
 320
 321         if (!obd->obd_set_up || obd->obd_stopping) {
 322                 CERROR("OBD ioctl: device not setup %d \n", data->ioc_dev);
 323                 GOTO(out, err = -EINVAL);
 324         }
 325
 326         switch(cmd) {
 327         case OBD_IOC_NO_TRANSNO: {
 328                 if (!obd->obd_attached) {
 329                         CERROR("Device %d not attached\n", obd->obd_minor);
 330                         GOTO(out, err = -ENODEV);
 331                 }
 332                 CDEBUG(D_HA, "%s: disabling committed-transno notification\n",
 333                        obd->obd_name);
 334                 obd->obd_no_transno = 1;
 335                 GOTO(out, err = 0);
 336         }
 337
 338         default: {
 339                 err = obd_iocontrol(cmd, obd->obd_self_export, len, data, NULL);
 340                 if (err)
 341                         GOTO(out, err);
 342
 343                 err = obd_ioctl_popdata((void *)arg, data, len);
 344                 if (err)
 345                         err = -EFAULT;
 346                 GOTO(out, err);
 347         }
 348         }
 349
 350  out:
 351         if (buf)
 352                 obd_ioctl_freedata(buf, len);
 353         RETURN(err);
 354 } /* class_handle_ioctl */
 355
 356
 357
 358 #define OBD_MINOR 241
 359 #ifdef __KERNEL__
 360 /* to control /dev/obd */
 361 static int obd_class_ioctl (struct cfs_psdev_file *pfile, unsigned long cmd, void *arg)
 362 {
 363         return class_handle_ioctl(cmd, (unsigned long)arg);
 364 }
 365
 366 /* declare character device */
 367 struct cfs_psdev_ops obd_psdev_ops = {
 368         /* .p_open    = */ obd_class_open,      /* open */
 369         /* .p_close   = */ obd_class_release,   /* release */
 370         /* .p_read    = */ NULL,
 371         /* .p_write   = */ NULL,
 372         /* .p_ioctl   = */ obd_class_ioctl     /* ioctl */
 373 };
 374
 375 extern cfs_psdev_t obd_psdev;
 376 #else
 377 void *obd_psdev = NULL;
 378 #endif
 379
 380 EXPORT_SYMBOL(obd_devs);
 381 EXPORT_SYMBOL(obd_fail_loc);
 382 EXPORT_SYMBOL(obd_print_fail_loc);
 383 EXPORT_SYMBOL(obd_race_waitq);
 384 EXPORT_SYMBOL(obd_race_state);
 385 EXPORT_SYMBOL(obd_dump_on_timeout);
 386 EXPORT_SYMBOL(obd_dump_on_eviction);
 387 EXPORT_SYMBOL(obd_timeout);
 388 EXPORT_SYMBOL(ldlm_timeout);
 389 EXPORT_SYMBOL(obd_health_check_timeout);
 390 EXPORT_SYMBOL(ptlrpc_put_connection_superhack);
 391
 392 EXPORT_SYMBOL(proc_lustre_root);
 393
 394 EXPORT_SYMBOL(class_register_type);
 395 EXPORT_SYMBOL(class_unregister_type);
 396 EXPORT_SYMBOL(class_get_type);
 397 EXPORT_SYMBOL(class_put_type);
 398 EXPORT_SYMBOL(class_name2dev);
 399 EXPORT_SYMBOL(class_name2obd);
 400 EXPORT_SYMBOL(class_uuid2dev);
 401 EXPORT_SYMBOL(class_uuid2obd);
 402 EXPORT_SYMBOL(class_find_client_obd);
 403 EXPORT_SYMBOL(class_find_client_notype);
 404 EXPORT_SYMBOL(class_devices_in_group);
 405 EXPORT_SYMBOL(class_conn2export);
 406 EXPORT_SYMBOL(class_exp2obd);
 407 EXPORT_SYMBOL(class_conn2obd);
 408 EXPORT_SYMBOL(class_exp2cliimp);
 409 EXPORT_SYMBOL(class_conn2cliimp);
 410 EXPORT_SYMBOL(class_disconnect);
 411 EXPORT_SYMBOL(class_num2obd);
 412
 413 /* uuid.c */
 414 EXPORT_SYMBOL(class_generate_random_uuid);
 415 EXPORT_SYMBOL(class_uuid_unparse);
 416 EXPORT_SYMBOL(lustre_uuid_to_peer);
 417
 418 EXPORT_SYMBOL(class_handle_hash);
 419 EXPORT_SYMBOL(class_handle_unhash);
 420 EXPORT_SYMBOL(class_handle_hash_back);
 421 EXPORT_SYMBOL(class_handle2object);
 422
 423 /* obd_config.c */
 424 EXPORT_SYMBOL(class_incref);
 425 EXPORT_SYMBOL(class_decref);
 426 EXPORT_SYMBOL(class_get_profile);
 427 EXPORT_SYMBOL(class_del_profile);
 428 EXPORT_SYMBOL(class_del_profiles);
 429 EXPORT_SYMBOL(class_process_config);
 430 EXPORT_SYMBOL(class_process_proc_param);
 431 EXPORT_SYMBOL(class_config_parse_llog);
 432 EXPORT_SYMBOL(class_config_dump_llog);
 433 EXPORT_SYMBOL(class_attach);
 434 EXPORT_SYMBOL(class_setup);
 435 EXPORT_SYMBOL(class_cleanup);
 436 EXPORT_SYMBOL(class_detach);
 437 EXPORT_SYMBOL(class_manual_cleanup);
 438
 439 /* mea.c */
 440 EXPORT_SYMBOL(mea_name2idx);
 441 EXPORT_SYMBOL(raw_name2idx);
 442
 443 #define OBD_INIT_CHECK
 444 #ifdef OBD_INIT_CHECK
 445 int obd_init_checks(void)
 446 {
 447         __u64 u64val, div64val;
 448         char buf[64];
 449         int len, ret = 0;
 450
 451         CDEBUG(D_INFO, "LPU64=%s, LPD64=%s, LPX64=%s, LPSZ=%s, LPSSZ=%s\n",
 452                LPU64, LPD64, LPX64, LPSZ, LPSSZ);
 453
 454         CDEBUG(D_INFO, "OBD_OBJECT_EOF = "LPX64"\n", (__u64)OBD_OBJECT_EOF);
 455
 456         u64val = OBD_OBJECT_EOF;
 457         CDEBUG(D_INFO, "u64val OBD_OBJECT_EOF = "LPX64"\n", u64val);
 458         if (u64val != OBD_OBJECT_EOF) {
 459                 CERROR("__u64 "LPX64"(%d) != 0xffffffffffffffff\n",
 460                        u64val, (int)sizeof(u64val));
 461                 ret = -EINVAL;
 462         }
 463         len = snprintf(buf, sizeof(buf), LPX64, u64val);
 464         if (len != 18) {
 465                 CWARN("LPX64 wrong length! strlen(%s)=%d != 18\n", buf, len);
 466                 ret = -EINVAL;
 467         }
 468
 469         div64val = OBD_OBJECT_EOF;
 470         CDEBUG(D_INFO, "u64val OBD_OBJECT_EOF = "LPX64"\n", u64val);
 471         if (u64val != OBD_OBJECT_EOF) {
 472                 CERROR("__u64 "LPX64"(%d) != 0xffffffffffffffff\n",
 473                        u64val, (int)sizeof(u64val));
 474                 ret = -EOVERFLOW;
 475         }
 476         if (u64val >> 8 != OBD_OBJECT_EOF >> 8) {
 477                 CERROR("__u64 "LPX64"(%d) != 0xffffffffffffffff\n",
 478                        u64val, (int)sizeof(u64val));
 479                 return -EOVERFLOW;
 480         }
 481         if (do_div(div64val, 256) != (u64val & 255)) {
 482                 CERROR("do_div("LPX64",256) != "LPU64"\n", u64val, u64val &255);
 483                 return -EOVERFLOW;
 484         }
 485         if (u64val >> 8 != div64val) {
 486                 CERROR("do_div("LPX64",256) "LPU64" != "LPU64"\n",
 487                        u64val, div64val, u64val >> 8);
 488                 return -EOVERFLOW;
 489         }
 490         len = snprintf(buf, sizeof(buf), LPX64, u64val);
 491         if (len != 18) {
 492                 CWARN("LPX64 wrong length! strlen(%s)=%d != 18\n", buf, len);
 493                 ret = -EINVAL;
 494         }
 495         len = snprintf(buf, sizeof(buf), LPU64, u64val);
 496         if (len != 20) {
 497                 CWARN("LPU64 wrong length! strlen(%s)=%d != 20\n", buf, len);
 498                 ret = -EINVAL;
 499         }
 500         len = snprintf(buf, sizeof(buf), LPD64, u64val);
 501         if (len != 2) {
 502                 CWARN("LPD64 wrong length! strlen(%s)=%d != 2\n", buf, len);
 503                 ret = -EINVAL;
 504         }
 505         if ((u64val & ~CFS_PAGE_MASK) >= CFS_PAGE_SIZE) {
 506                 CWARN("mask failed: u64val "LPU64" >= %lu\n", u64val,CFS_PAGE_SIZE);
 507                 ret = -EINVAL;
 508         }
 509
 510         return ret;
 511 }
 512 #else
 513 #define obd_init_checks() do {} while(0)
 514 #endif
 515
 516 extern int init_capa_hash(void);
 517 extern void cleanup_capa_hash(void);
 518
 519 extern spinlock_t obd_types_lock;
 520 extern spinlock_t handle_lock;
 521 extern int class_procfs_init(void);
 522 extern int class_procfs_clean(void);
 523
 524 #ifdef __KERNEL__
 525 static int __init init_obdclass(void)
 526 #else
 527 int init_obdclass(void)
 528 #endif
 529 {
 530         int i, err;
 531 #ifdef __KERNEL__
 532         int lustre_register_fs(void);
 533
 534         printk(KERN_INFO "Lustre: OBD class driver, info@clusterfs.com\n");
 535         printk(KERN_INFO "        Lustre Version: "LUSTRE_VERSION_STRING"\n");
 536         printk(KERN_INFO "        Build Version: "BUILD_VERSION"\n");
 537 #else
 538         CDEBUG(D_INFO, "Lustre: OBD class driver, info@clusterfs.com\n");
 539         CDEBUG(D_INFO, "        Lustre Version: "LUSTRE_VERSION_STRING"\n");
 540         CDEBUG(D_INFO, "        Build Version: "BUILD_VERSION"\n");
 541 #endif
 542
 543         err = init_capa_hash();
 544         if (err)
 545                 return err;
 546
 547         spin_lock_init(&obd_types_lock);
 548         spin_lock_init(&handle_lock);
 549         cfs_waitq_init(&obd_race_waitq);
 550
 551         err = obd_init_checks();
 552         if (err == -EOVERFLOW)
 553                 return err;
 554
 555         class_init_uuidlist();
 556         err = class_handle_init();
 557         if (err)
 558                 return err;
 559
 560         spin_lock_init(&obd_dev_lock);
 561         INIT_LIST_HEAD(&obd_types);
 562
 563         err = cfs_psdev_register(&obd_psdev);
 564         if (err) {
 565                 CERROR("cannot register %d err %d\n", OBD_MINOR, err);
 566                 return err;
 567         }
 568
 569         /* This struct is already zerod for us (static global) */
 570         for (i = 0; i < class_devno_max(); i++)
 571                 obd_devs[i] = NULL;
 572
 573         err = obd_init_caches();
 574         if (err)
 575                 return err;
 576 #ifdef __KERNEL__
 577         err = lu_global_init();
 578         if (err)
 579                 return err;
 580         err = class_procfs_init();
 581         if (err)
 582                 return err;
 583         err = lustre_register_fs();
 584 #endif
 585
 586         return err;
 587 }
 588
 589 /* liblustre doesn't call cleanup_obdclass, apparently.  we carry on in this
 590  * ifdef to the end of the file to cover module and versioning goo.*/
 591 #ifdef __KERNEL__
 592 static void cleanup_obdclass(void)
 593 {
 594         int i;
 595         int lustre_unregister_fs(void);
 596         ENTRY;
 597
 598         lustre_unregister_fs();
 599
 600         cfs_psdev_deregister(&obd_psdev);
 601         for (i = 0; i < class_devno_max(); i++) {
 602                 struct obd_device *obd = class_num2obd(i);
 603                 if (obd && obd->obd_set_up &&
 604                     OBT(obd) && OBP(obd, detach)) {
 605                         /* XXX should this call generic detach otherwise? */
 606                         LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
 607                         OBP(obd, detach)(obd);
 608                 }
 609         }
 610         lu_global_fini();
 611
 612         cleanup_capa_hash();
 613         obd_cleanup_caches();
 614         obd_sysctl_clean();
 615
 616         class_procfs_clean();
 617
 618         class_handle_cleanup();
 619         class_exit_uuidlist();
 620         EXIT;
 621 }
 622
 623 MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
 624 MODULE_DESCRIPTION("Lustre Class Driver Build Version: " BUILD_VERSION);
 625 MODULE_LICENSE("GPL");
 626
 627 cfs_module(obdclass, LUSTRE_VERSION_STRING, init_obdclass, cleanup_obdclass);
 628 #endif