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  * GPL HEADER START
   5  *
   6  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 only,
  10  * as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License version 2 for more details (a copy is included
  16  * in the LICENSE file that accompanied this code).
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * version 2 along with this program; If not, see
  20  * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
  21  *
  22  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  23  * CA 95054 USA or visit www.sun.com if you need additional information or
  24  * have any questions.
  25  *
  26  * GPL HEADER END
  27  */
  28 /*
  29  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
  30  * Use is subject to license terms.
  31  *
  32  * Copyright (c) 2011, Whamcloud, Inc.
  33  */
  34 /*
  35  * This file is part of Lustre, http://www.lustre.org/
  36  * Lustre is a trademark of Sun Microsystems, Inc.
  37  */
  38
  39 #define DEBUG_SUBSYSTEM S_CLASS
  40 #ifndef EXPORT_SYMTAB
  41 # define EXPORT_SYMTAB
  42 #endif
  43 #ifndef __KERNEL__
  44 # include <liblustre.h>
  45 #else
  46 # include <asm/atomic.h>
  47 #endif
  48
  49 #include <obd_support.h>
  50 #include <obd_class.h>
  51 #include <lnet/lnetctl.h>
  52 #include <lustre_debug.h>
  53 #include <lprocfs_status.h>
  54 #include <lustre/lustre_build_version.h>
  55 #include <libcfs/list.h>
  56 #include "llog_internal.h"
  57
  58 #ifndef __KERNEL__
  59 /* liblustre workaround */
  60 cfs_atomic_t libcfs_kmemory = {0};
  61 #endif
  62
  63 struct obd_device *obd_devs[MAX_OBD_DEVICES];
  64 cfs_list_t obd_types;
  65 cfs_rwlock_t obd_dev_lock = CFS_RW_LOCK_UNLOCKED;
  66
  67 #ifndef __KERNEL__
  68 __u64 obd_max_pages = 0;
  69 __u64 obd_max_alloc = 0;
  70 __u64 obd_alloc;
  71 __u64 obd_pages;
  72 #endif
  73
  74 /* The following are visible and mutable through /proc/sys/lustre/. */
  75 unsigned int obd_debug_peer_on_timeout;
  76 unsigned int obd_dump_on_timeout;
  77 unsigned int obd_dump_on_eviction;
  78 unsigned int obd_max_dirty_pages = 256;
  79 unsigned int obd_timeout = OBD_TIMEOUT_DEFAULT;   /* seconds */
  80 unsigned int ldlm_timeout = LDLM_TIMEOUT_DEFAULT; /* seconds */
  81 /* Adaptive timeout defs here instead of ptlrpc module for /proc/sys/ access */
  82 unsigned int at_min = 0;
  83 unsigned int at_max = 600;
  84 unsigned int at_history = 600;
  85 int at_early_margin = 5;
  86 int at_extra = 30;
  87
  88 cfs_atomic_t obd_dirty_pages;
  89 cfs_atomic_t obd_dirty_transit_pages;
  90
  91 static inline void obd_data2conn(struct lustre_handle *conn,
  92                                  struct obd_ioctl_data *data)
  93 {
  94         memset(conn, 0, sizeof *conn);
  95         conn->cookie = data->ioc_cookie;
  96 }
  97
  98 static inline void obd_conn2data(struct obd_ioctl_data *data,
  99                                  struct lustre_handle *conn)
 100 {
 101         data->ioc_cookie = conn->cookie;
 102 }
 103
 104 int class_resolve_dev_name(__u32 len, const char *name)
 105 {
 106         int rc;
 107         int dev;
 108
 109         ENTRY;
 110         if (!len || !name) {
 111                 CERROR("No name passed,!\n");
 112                 GOTO(out, rc = -EINVAL);
 113         }
 114         if (name[len - 1] != 0) {
 115                 CERROR("Name not nul terminated!\n");
 116                 GOTO(out, rc = -EINVAL);
 117         }
 118
 119         CDEBUG(D_IOCTL, "device name %s\n", name);
 120         dev = class_name2dev(name);
 121         if (dev == -1) {
 122                 CDEBUG(D_IOCTL, "No device for name %s!\n", name);
 123                 GOTO(out, rc = -EINVAL);
 124         }
 125
 126         CDEBUG(D_IOCTL, "device name %s, dev %d\n", name, dev);
 127         rc = dev;
 128
 129 out:
 130         RETURN(rc);
 131 }
 132
 133 int class_handle_ioctl(unsigned int cmd, unsigned long arg)
 134 {
 135         char *buf = NULL;
 136         struct obd_ioctl_data *data;
 137         struct libcfs_debug_ioctl_data *debug_data;
 138         struct obd_device *obd = NULL;
 139         int err = 0, len = 0;
 140         ENTRY;
 141
 142         /* only for debugging */
 143         if (cmd == LIBCFS_IOC_DEBUG_MASK) {
 144                 debug_data = (struct libcfs_debug_ioctl_data*)arg;
 145                 libcfs_subsystem_debug = debug_data->subs;
 146                 libcfs_debug = debug_data->debug;
 147                 return 0;
 148         }
 149
 150         CDEBUG(D_IOCTL, "cmd = %x\n", cmd);
 151         if (obd_ioctl_getdata(&buf, &len, (void *)arg)) {
 152                 CERROR("OBD ioctl: data error\n");
 153                 RETURN(-EINVAL);
 154         }
 155         data = (struct obd_ioctl_data *)buf;
 156
 157         switch (cmd) {
 158         case OBD_IOC_PROCESS_CFG: {
 159                 struct lustre_cfg *lcfg;
 160
 161                 if (!data->ioc_plen1 || !data->ioc_pbuf1) {
 162                         CERROR("No config buffer passed!\n");
 163                         GOTO(out, err = -EINVAL);
 164                 }
 165                 OBD_ALLOC(lcfg, data->ioc_plen1);
 166                 if (lcfg == NULL)
 167                         GOTO(out, err = -ENOMEM);
 168                 err = cfs_copy_from_user(lcfg, data->ioc_pbuf1,
 169                                          data->ioc_plen1);
 170                 if (!err)
 171                         err = lustre_cfg_sanity_check(lcfg, data->ioc_plen1);
 172                 if (!err)
 173                         err = class_process_config(lcfg);
 174
 175                 OBD_FREE(lcfg, data->ioc_plen1);
 176                 GOTO(out, err);
 177         }
 178
 179         case OBD_GET_VERSION:
 180                 if (!data->ioc_inlbuf1) {
 181                         CERROR("No buffer passed in ioctl\n");
 182                         GOTO(out, err = -EINVAL);
 183                 }
 184
 185                 if (strlen(BUILD_VERSION) + 1 > data->ioc_inllen1) {
 186                         CERROR("ioctl buffer too small to hold version\n");
 187                         GOTO(out, err = -EINVAL);
 188                 }
 189
 190                 memcpy(data->ioc_bulk, BUILD_VERSION,
 191                        strlen(BUILD_VERSION) + 1);
 192
 193                 err = obd_ioctl_popdata((void *)arg, data, len);
 194                 if (err)
 195                         err = -EFAULT;
 196                 GOTO(out, err);
 197
 198         case OBD_IOC_NAME2DEV: {
 199                 /* Resolve a device name.  This does not change the
 200                  * currently selected device.
 201                  */
 202                 int dev;
 203
 204                 dev = class_resolve_dev_name(data->ioc_inllen1,
 205                                              data->ioc_inlbuf1);
 206                 data->ioc_dev = dev;
 207                 if (dev < 0)
 208                         GOTO(out, err = -EINVAL);
 209
 210                 err = obd_ioctl_popdata((void *)arg, data, sizeof(*data));
 211                 if (err)
 212                         err = -EFAULT;
 213                 GOTO(out, err);
 214         }
 215
 216         case OBD_IOC_UUID2DEV: {
 217                 /* Resolve a device uuid.  This does not change the
 218                  * currently selected device.
 219                  */
 220                 int dev;
 221                 struct obd_uuid uuid;
 222
 223                 if (!data->ioc_inllen1 || !data->ioc_inlbuf1) {
 224                         CERROR("No UUID passed!\n");
 225                         GOTO(out, err = -EINVAL);
 226                 }
 227                 if (data->ioc_inlbuf1[data->ioc_inllen1 - 1] != 0) {
 228                         CERROR("UUID not NUL terminated!\n");
 229                         GOTO(out, err = -EINVAL);
 230                 }
 231
 232                 CDEBUG(D_IOCTL, "device name %s\n", data->ioc_inlbuf1);
 233                 obd_str2uuid(&uuid, data->ioc_inlbuf1);
 234                 dev = class_uuid2dev(&uuid);
 235                 data->ioc_dev = dev;
 236                 if (dev == -1) {
 237                         CDEBUG(D_IOCTL, "No device for UUID %s!\n",
 238                                data->ioc_inlbuf1);
 239                         GOTO(out, err = -EINVAL);
 240                 }
 241
 242                 CDEBUG(D_IOCTL, "device name %s, dev %d\n", data->ioc_inlbuf1,
 243                        dev);
 244                 err = obd_ioctl_popdata((void *)arg, data, sizeof(*data));
 245                 if (err)
 246                         err = -EFAULT;
 247                 GOTO(out, err);
 248         }
 249
 250         case OBD_IOC_CLOSE_UUID: {
 251                 CDEBUG(D_IOCTL, "closing all connections to uuid %s (NOOP)\n",
 252                        data->ioc_inlbuf1);
 253                 GOTO(out, err = 0);
 254         }
 255
 256         case OBD_IOC_GETDEVICE: {
 257                 int     index = data->ioc_count;
 258                 char    *status, *str;
 259
 260                 if (!data->ioc_inlbuf1) {
 261                         CERROR("No buffer passed in ioctl\n");
 262                         GOTO(out, err = -EINVAL);
 263                 }
 264                 if (data->ioc_inllen1 < 128) {
 265                         CERROR("ioctl buffer too small to hold version\n");
 266                         GOTO(out, err = -EINVAL);
 267                 }
 268
 269                 obd = class_num2obd(index);
 270                 if (!obd)
 271                         GOTO(out, err = -ENOENT);
 272
 273                 if (obd->obd_stopping)
 274                         status = "ST";
 275                 else if (obd->obd_set_up)
 276                         status = "UP";
 277                 else if (obd->obd_attached)
 278                         status = "AT";
 279                 else
 280                         status = "--";
 281                 str = (char *)data->ioc_bulk;
 282                 snprintf(str, len - sizeof(*data), "%3d %s %s %s %s %d",
 283                          (int)index, status, obd->obd_type->typ_name,
 284                          obd->obd_name, obd->obd_uuid.uuid,
 285                          cfs_atomic_read(&obd->obd_refcount));
 286                 err = obd_ioctl_popdata((void *)arg, data, len);
 287
 288                 GOTO(out, err = 0);
 289         }
 290
 291         }
 292
 293         if (data->ioc_dev == OBD_DEV_BY_DEVNAME) {
 294                 if (data->ioc_inllen4 <= 0 || data->ioc_inlbuf4 == NULL)
 295                         GOTO(out, err = -EINVAL);
 296                 if (strnlen(data->ioc_inlbuf4, MAX_OBD_NAME) >= MAX_OBD_NAME)
 297                         GOTO(out, err = -EINVAL);
 298                 obd = class_name2obd(data->ioc_inlbuf4);
 299         } else if (data->ioc_dev < class_devno_max()) {
 300                 obd = class_num2obd(data->ioc_dev);
 301         } else {
 302                 CERROR("OBD ioctl: No device\n");
 303                 GOTO(out, err = -EINVAL);
 304         }
 305
 306         if (obd == NULL) {
 307                 CERROR("OBD ioctl : No Device %d\n", data->ioc_dev);
 308                 GOTO(out, err = -EINVAL);
 309         }
 310         LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
 311
 312         if (!obd->obd_set_up || obd->obd_stopping) {
 313                 CERROR("OBD ioctl: device not setup %d \n", data->ioc_dev);
 314                 GOTO(out, err = -EINVAL);
 315         }
 316
 317         switch(cmd) {
 318         case OBD_IOC_NO_TRANSNO: {
 319                 if (!obd->obd_attached) {
 320                         CERROR("Device %d not attached\n", obd->obd_minor);
 321                         GOTO(out, err = -ENODEV);
 322                 }
 323                 CDEBUG(D_HA, "%s: disabling committed-transno notification\n",
 324                        obd->obd_name);
 325                 obd->obd_no_transno = 1;
 326                 GOTO(out, err = 0);
 327         }
 328
 329         default: {
 330                 err = obd_iocontrol(cmd, obd->obd_self_export, len, data, NULL);
 331                 if (err)
 332                         GOTO(out, err);
 333
 334                 err = obd_ioctl_popdata((void *)arg, data, len);
 335                 if (err)
 336                         err = -EFAULT;
 337                 GOTO(out, err);
 338         }
 339         }
 340
 341  out:
 342         if (buf)
 343                 obd_ioctl_freedata(buf, len);
 344         RETURN(err);
 345 } /* class_handle_ioctl */
 346
 347
 348
 349 #ifdef __KERNEL__
 350 extern cfs_psdev_t obd_psdev;
 351 #else
 352 void *obd_psdev = NULL;
 353 #endif
 354
 355 EXPORT_SYMBOL(obd_devs);
 356 EXPORT_SYMBOL(obd_debug_peer_on_timeout);
 357 EXPORT_SYMBOL(obd_dump_on_timeout);
 358 EXPORT_SYMBOL(obd_dump_on_eviction);
 359 EXPORT_SYMBOL(obd_timeout);
 360 EXPORT_SYMBOL(ldlm_timeout);
 361 EXPORT_SYMBOL(obd_max_dirty_pages);
 362 EXPORT_SYMBOL(obd_dirty_pages);
 363 EXPORT_SYMBOL(obd_dirty_transit_pages);
 364 EXPORT_SYMBOL(at_min);
 365 EXPORT_SYMBOL(at_max);
 366 EXPORT_SYMBOL(at_extra);
 367 EXPORT_SYMBOL(at_early_margin);
 368 EXPORT_SYMBOL(at_history);
 369 EXPORT_SYMBOL(ptlrpc_put_connection_superhack);
 370
 371 EXPORT_SYMBOL(proc_lustre_root);
 372
 373 /* uuid.c */
 374 EXPORT_SYMBOL(class_uuid_unparse);
 375 EXPORT_SYMBOL(lustre_uuid_to_peer);
 376
 377 EXPORT_SYMBOL(class_handle_hash);
 378 EXPORT_SYMBOL(class_handle_unhash);
 379 EXPORT_SYMBOL(class_handle_hash_back);
 380 EXPORT_SYMBOL(class_handle2object);
 381 EXPORT_SYMBOL(class_handle_free_cb);
 382
 383 /* obd_config.c */
 384 EXPORT_SYMBOL(class_incref);
 385 EXPORT_SYMBOL(class_decref);
 386 EXPORT_SYMBOL(class_get_profile);
 387 EXPORT_SYMBOL(class_del_profile);
 388 EXPORT_SYMBOL(class_del_profiles);
 389 EXPORT_SYMBOL(class_process_config);
 390 EXPORT_SYMBOL(class_process_proc_param);
 391 EXPORT_SYMBOL(class_config_parse_llog);
 392 EXPORT_SYMBOL(class_config_dump_llog);
 393 EXPORT_SYMBOL(class_attach);
 394 EXPORT_SYMBOL(class_setup);
 395 EXPORT_SYMBOL(class_cleanup);
 396 EXPORT_SYMBOL(class_detach);
 397 EXPORT_SYMBOL(class_manual_cleanup);
 398
 399 /* mea.c */
 400 EXPORT_SYMBOL(mea_name2idx);
 401 EXPORT_SYMBOL(raw_name2idx);
 402
 403 #define OBD_INIT_CHECK
 404 #ifdef OBD_INIT_CHECK
 405 int obd_init_checks(void)
 406 {
 407         __u64 u64val, div64val;
 408         char buf[64];
 409         int len, ret = 0;
 410
 411         CDEBUG(D_INFO, "LPU64=%s, LPD64=%s, LPX64=%s\n", LPU64, LPD64, LPX64);
 412
 413         CDEBUG(D_INFO, "OBD_OBJECT_EOF = "LPX64"\n", (__u64)OBD_OBJECT_EOF);
 414
 415         u64val = OBD_OBJECT_EOF;
 416         CDEBUG(D_INFO, "u64val OBD_OBJECT_EOF = "LPX64"\n", u64val);
 417         if (u64val != OBD_OBJECT_EOF) {
 418                 CERROR("__u64 "LPX64"(%d) != 0xffffffffffffffff\n",
 419                        u64val, (int)sizeof(u64val));
 420                 ret = -EINVAL;
 421         }
 422         len = snprintf(buf, sizeof(buf), LPX64, u64val);
 423         if (len != 18) {
 424                 CWARN("LPX64 wrong length! strlen(%s)=%d != 18\n", buf, len);
 425                 ret = -EINVAL;
 426         }
 427
 428         div64val = OBD_OBJECT_EOF;
 429         CDEBUG(D_INFO, "u64val OBD_OBJECT_EOF = "LPX64"\n", u64val);
 430         if (u64val != OBD_OBJECT_EOF) {
 431                 CERROR("__u64 "LPX64"(%d) != 0xffffffffffffffff\n",
 432                        u64val, (int)sizeof(u64val));
 433                 ret = -EOVERFLOW;
 434         }
 435         if (u64val >> 8 != OBD_OBJECT_EOF >> 8) {
 436                 CERROR("__u64 "LPX64"(%d) != 0xffffffffffffffff\n",
 437                        u64val, (int)sizeof(u64val));
 438                 return -EOVERFLOW;
 439         }
 440         if (do_div(div64val, 256) != (u64val & 255)) {
 441                 CERROR("do_div("LPX64",256) != "LPU64"\n", u64val, u64val &255);
 442                 return -EOVERFLOW;
 443         }
 444         if (u64val >> 8 != div64val) {
 445                 CERROR("do_div("LPX64",256) "LPU64" != "LPU64"\n",
 446                        u64val, div64val, u64val >> 8);
 447                 return -EOVERFLOW;
 448         }
 449         len = snprintf(buf, sizeof(buf), LPX64, u64val);
 450         if (len != 18) {
 451                 CWARN("LPX64 wrong length! strlen(%s)=%d != 18\n", buf, len);
 452                 ret = -EINVAL;
 453         }
 454         len = snprintf(buf, sizeof(buf), LPU64, u64val);
 455         if (len != 20) {
 456                 CWARN("LPU64 wrong length! strlen(%s)=%d != 20\n", buf, len);
 457                 ret = -EINVAL;
 458         }
 459         len = snprintf(buf, sizeof(buf), LPD64, u64val);
 460         if (len != 2) {
 461                 CWARN("LPD64 wrong length! strlen(%s)=%d != 2\n", buf, len);
 462                 ret = -EINVAL;
 463         }
 464         if ((u64val & ~CFS_PAGE_MASK) >= CFS_PAGE_SIZE) {
 465                 CWARN("mask failed: u64val "LPU64" >= "LPU64"\n", u64val,
 466                       (__u64)CFS_PAGE_SIZE);
 467                 ret = -EINVAL;
 468         }
 469
 470         return ret;
 471 }
 472 #else
 473 #define obd_init_checks() do {} while(0)
 474 #endif
 475
 476 extern cfs_spinlock_t obd_types_lock;
 477 extern int class_procfs_init(void);
 478 extern int class_procfs_clean(void);
 479
 480 #ifdef __KERNEL__
 481 static int __init init_obdclass(void)
 482 #else
 483 int init_obdclass(void)
 484 #endif
 485 {
 486         int i, err;
 487 #ifdef __KERNEL__
 488         int lustre_register_fs(void);
 489
 490         for (i = CAPA_SITE_CLIENT; i < CAPA_SITE_MAX; i++)
 491                 CFS_INIT_LIST_HEAD(&capa_list[i]);
 492 #endif
 493
 494         LCONSOLE_INFO("Lustre: Build Version: "BUILD_VERSION"\n");
 495
 496         cfs_spin_lock_init(&obd_types_lock);
 497         obd_zombie_impexp_init();
 498 #ifdef LPROCFS
 499         obd_memory = lprocfs_alloc_stats(OBD_STATS_NUM,
 500                                          LPROCFS_STATS_FLAG_NONE);
 501         if (obd_memory == NULL) {
 502                 CERROR("kmalloc of 'obd_memory' failed\n");
 503                 RETURN(-ENOMEM);
 504         }
 505
 506         lprocfs_counter_init(obd_memory, OBD_MEMORY_STAT,
 507                              LPROCFS_CNTR_AVGMINMAX,
 508                              "memused", "bytes");
 509         lprocfs_counter_init(obd_memory, OBD_MEMORY_PAGES_STAT,
 510                              LPROCFS_CNTR_AVGMINMAX,
 511                              "pagesused", "pages");
 512 #endif
 513         err = obd_init_checks();
 514         if (err == -EOVERFLOW)
 515                 return err;
 516
 517         class_init_uuidlist();
 518         err = class_handle_init();
 519         if (err)
 520                 return err;
 521
 522         CFS_INIT_LIST_HEAD(&obd_types);
 523
 524         err = cfs_psdev_register(&obd_psdev);
 525         if (err) {
 526                 CERROR("cannot register %d err %d\n", OBD_DEV_MINOR, err);
 527                 return err;
 528         }
 529
 530         /* This struct is already zeroed for us (static global) */
 531         for (i = 0; i < class_devno_max(); i++)
 532                 obd_devs[i] = NULL;
 533
 534         /* Default the dirty page cache cap to 1/2 of system memory.
 535          * For clients with less memory, a larger fraction is needed
 536          * for other purposes (mostly for BGL). */
 537         if (cfs_num_physpages <= 512 << (20 - CFS_PAGE_SHIFT))
 538                 obd_max_dirty_pages = cfs_num_physpages / 4;
 539         else
 540                 obd_max_dirty_pages = cfs_num_physpages / 2;
 541
 542         err = obd_init_caches();
 543         if (err)
 544                 return err;
 545 #ifdef __KERNEL__
 546         err = class_procfs_init();
 547         if (err)
 548                 return err;
 549 #endif
 550
 551         err = lu_global_init();
 552         if (err)
 553                 return err;
 554
 555 #ifdef __KERNEL__
 556         err = lustre_register_fs();
 557 #endif
 558
 559         return err;
 560 }
 561
 562 /* liblustre doesn't call cleanup_obdclass, apparently.  we carry on in this
 563  * ifdef to the end of the file to cover module and versioning goo.*/
 564 #ifdef __KERNEL__
 565 static void cleanup_obdclass(void)
 566 {
 567         int i;
 568         int lustre_unregister_fs(void);
 569         __u64 memory_leaked, pages_leaked;
 570         __u64 memory_max, pages_max;
 571         ENTRY;
 572
 573         lustre_unregister_fs();
 574
 575         cfs_psdev_deregister(&obd_psdev);
 576         for (i = 0; i < class_devno_max(); i++) {
 577                 struct obd_device *obd = class_num2obd(i);
 578                 if (obd && obd->obd_set_up &&
 579                     OBT(obd) && OBP(obd, detach)) {
 580                         /* XXX should this call generic detach otherwise? */
 581                         LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
 582                         OBP(obd, detach)(obd);
 583                 }
 584         }
 585         lu_global_fini();
 586
 587         obd_cleanup_caches();
 588         obd_sysctl_clean();
 589
 590         class_procfs_clean();
 591
 592         class_handle_cleanup();
 593         class_exit_uuidlist();
 594         obd_zombie_impexp_stop();
 595
 596         memory_leaked = obd_memory_sum();
 597         pages_leaked = obd_pages_sum();
 598
 599         memory_max = obd_memory_max();
 600         pages_max = obd_pages_max();
 601
 602         lprocfs_free_stats(&obd_memory);
 603         CDEBUG((memory_leaked) ? D_ERROR : D_INFO,
 604                "obd_memory max: "LPU64", leaked: "LPU64"\n",
 605                memory_max, memory_leaked);
 606         CDEBUG((pages_leaked) ? D_ERROR : D_INFO,
 607                "obd_memory_pages max: "LPU64", leaked: "LPU64"\n",
 608                pages_max, pages_leaked);
 609
 610         EXIT;
 611 }
 612
 613 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
 614 MODULE_DESCRIPTION("Lustre Class Driver Build Version: " BUILD_VERSION);
 615 MODULE_LICENSE("GPL");
 616
 617 cfs_module(obdclass, LUSTRE_VERSION_STRING, init_obdclass, cleanup_obdclass);
 618 #endif