lustre/osd-ldiskfs/osd_lproc.c

   1 /*
   2  * GPL HEADER START
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 only,
   8  * as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License version 2 for more details (a copy is included
  14  * in the LICENSE file that accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * version 2 along with this program; If not, see
  18  * http://www.gnu.org/licenses/gpl-2.0.html
  19  *
  20  * GPL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  * Copyright (c) 2011, 2015, Intel Corporation.
  27  */
  28 /*
  29  * This file is part of Lustre, http://www.lustre.org/
  30  * Lustre is a trademark of Sun Microsystems, Inc.
  31  *
  32  * lustre/osd/osd_lproc.c
  33  *
  34  * Author: Mikhail Pershin <tappro@sun.com>
  35  */
  36
  37 #define DEBUG_SUBSYSTEM S_OSD
  38
  39 #include <lprocfs_status.h>
  40 #include <lustre/lustre_idl.h>
  41
  42 #include "osd_internal.h"
  43
  44 #ifdef CONFIG_PROC_FS
  45
  46 void osd_brw_stats_update(struct osd_device *osd, struct osd_iobuf *iobuf)
  47 {
  48         struct brw_stats *s = &osd->od_brw_stats;
  49         sector_t         *last_block = NULL;
  50         struct page     **pages = iobuf->dr_pages;
  51         struct page      *last_page = NULL;
  52         unsigned long     discont_pages = 0;
  53         unsigned long     discont_blocks = 0;
  54         sector_t         *blocks = iobuf->dr_blocks;
  55         int               i, nr_pages = iobuf->dr_npages;
  56         int               blocks_per_page;
  57         int               rw = iobuf->dr_rw;
  58
  59         if (unlikely(nr_pages == 0))
  60                 return;
  61
  62         blocks_per_page = PAGE_SIZE >> osd_sb(osd)->s_blocksize_bits;
  63
  64         lprocfs_oh_tally_log2(&s->hist[BRW_R_PAGES+rw], nr_pages);
  65
  66         while (nr_pages-- > 0) {
  67                 if (last_page && (*pages)->index != (last_page->index + 1))
  68                         discont_pages++;
  69                 last_page = *pages;
  70                 pages++;
  71                 for (i = 0; i < blocks_per_page; i++) {
  72                         if (last_block && *blocks != (*last_block + 1))
  73                                 discont_blocks++;
  74                         last_block = blocks++;
  75                 }
  76         }
  77
  78         lprocfs_oh_tally(&s->hist[BRW_R_DISCONT_PAGES+rw], discont_pages);
  79         lprocfs_oh_tally(&s->hist[BRW_R_DISCONT_BLOCKS+rw], discont_blocks);
  80 }
  81
  82 #define pct(a, b) (b ? a * 100 / b : 0)
  83
  84 static void display_brw_stats(struct seq_file *seq, char *name, char *units,
  85         struct obd_histogram *read, struct obd_histogram *write, int scale)
  86 {
  87         unsigned long read_tot, write_tot, r, w, read_cum = 0, write_cum = 0;
  88         int i;
  89
  90         seq_printf(seq, "\n%26s read      |     write\n", " ");
  91         seq_printf(seq, "%-22s %-5s %% cum %% |  %-11s %% cum %%\n",
  92                    name, units, units);
  93
  94         read_tot = lprocfs_oh_sum(read);
  95         write_tot = lprocfs_oh_sum(write);
  96         for (i = 0; i < OBD_HIST_MAX; i++) {
  97                 r = read->oh_buckets[i];
  98                 w = write->oh_buckets[i];
  99                 read_cum += r;
 100                 write_cum += w;
 101                 if (read_cum == 0 && write_cum == 0)
 102                         continue;
 103
 104                 if (!scale)
 105                         seq_printf(seq, "%u", i);
 106                 else if (i < 10)
 107                         seq_printf(seq, "%u", scale << i);
 108                 else if (i < 20)
 109                         seq_printf(seq, "%uK", scale << (i-10));
 110                 else
 111                         seq_printf(seq, "%uM", scale << (i-20));
 112
 113                 seq_printf(seq, ":\t\t%10lu %3lu %3lu   | %4lu %3lu %3lu\n",
 114                            r, pct(r, read_tot), pct(read_cum, read_tot),
 115                            w, pct(w, write_tot), pct(write_cum, write_tot));
 116
 117                 if (read_cum == read_tot && write_cum == write_tot)
 118                         break;
 119         }
 120 }
 121
 122 static void brw_stats_show(struct seq_file *seq, struct brw_stats *brw_stats)
 123 {
 124         struct timespec64 now;
 125
 126         /* this sampling races with updates */
 127         ktime_get_real_ts64(&now);
 128
 129         seq_printf(seq, "snapshot_time:         %lld.%09ld (secs.nsecs)\n",
 130                    (s64)now.tv_sec, now.tv_nsec);
 131
 132         display_brw_stats(seq, "pages per bulk r/w", "rpcs",
 133                           &brw_stats->hist[BRW_R_PAGES],
 134                           &brw_stats->hist[BRW_W_PAGES], 1);
 135
 136         display_brw_stats(seq, "discontiguous pages", "rpcs",
 137                           &brw_stats->hist[BRW_R_DISCONT_PAGES],
 138                           &brw_stats->hist[BRW_W_DISCONT_PAGES], 0);
 139
 140         display_brw_stats(seq, "discontiguous blocks", "rpcs",
 141                           &brw_stats->hist[BRW_R_DISCONT_BLOCKS],
 142                           &brw_stats->hist[BRW_W_DISCONT_BLOCKS], 0);
 143
 144         display_brw_stats(seq, "disk fragmented I/Os", "ios",
 145                           &brw_stats->hist[BRW_R_DIO_FRAGS],
 146                           &brw_stats->hist[BRW_W_DIO_FRAGS], 0);
 147
 148         display_brw_stats(seq, "disk I/Os in flight", "ios",
 149                           &brw_stats->hist[BRW_R_RPC_HIST],
 150                           &brw_stats->hist[BRW_W_RPC_HIST], 0);
 151
 152         display_brw_stats(seq, "I/O time (1/1000s)", "ios",
 153                           &brw_stats->hist[BRW_R_IO_TIME],
 154                           &brw_stats->hist[BRW_W_IO_TIME],
 155                           jiffies_to_msecs(1000) / MSEC_PER_SEC);
 156
 157         display_brw_stats(seq, "disk I/O size", "ios",
 158                           &brw_stats->hist[BRW_R_DISK_IOSIZE],
 159                           &brw_stats->hist[BRW_W_DISK_IOSIZE], 1);
 160 }
 161
 162 #undef pct
 163
 164 static int osd_brw_stats_seq_show(struct seq_file *seq, void *v)
 165 {
 166         struct osd_device *osd = seq->private;
 167
 168         brw_stats_show(seq, &osd->od_brw_stats);
 169
 170         return 0;
 171 }
 172
 173 static ssize_t osd_brw_stats_seq_write(struct file *file,
 174                                        const char __user *buf,
 175                                        size_t len, loff_t *off)
 176 {
 177         struct seq_file *seq = file->private_data;
 178         struct osd_device *osd = seq->private;
 179         int i;
 180
 181         for (i = 0; i < BRW_LAST; i++)
 182                 lprocfs_oh_clear(&osd->od_brw_stats.hist[i]);
 183
 184         return len;
 185 }
 186
 187 LPROC_SEQ_FOPS(osd_brw_stats);
 188
 189 static int osd_stats_init(struct osd_device *osd)
 190 {
 191         int i, result;
 192         ENTRY;
 193
 194         for (i = 0; i < BRW_LAST; i++)
 195                 spin_lock_init(&osd->od_brw_stats.hist[i].oh_lock);
 196
 197         osd->od_stats = lprocfs_alloc_stats(LPROC_OSD_LAST, 0);
 198         if (osd->od_stats != NULL) {
 199                 result = lprocfs_register_stats(osd->od_proc_entry, "stats",
 200                                                 osd->od_stats);
 201                 if (result)
 202                         GOTO(out, result);
 203
 204                 lprocfs_counter_init(osd->od_stats, LPROC_OSD_GET_PAGE,
 205                                      LPROCFS_CNTR_AVGMINMAX|LPROCFS_CNTR_STDDEV,
 206                                      "get_page", "usec");
 207                 lprocfs_counter_init(osd->od_stats, LPROC_OSD_NO_PAGE,
 208                                      LPROCFS_CNTR_AVGMINMAX,
 209                                      "get_page_failures", "num");
 210                 lprocfs_counter_init(osd->od_stats, LPROC_OSD_CACHE_ACCESS,
 211                                      LPROCFS_CNTR_AVGMINMAX,
 212                                      "cache_access", "pages");
 213                 lprocfs_counter_init(osd->od_stats, LPROC_OSD_CACHE_HIT,
 214                                      LPROCFS_CNTR_AVGMINMAX,
 215                                      "cache_hit", "pages");
 216                 lprocfs_counter_init(osd->od_stats, LPROC_OSD_CACHE_MISS,
 217                                      LPROCFS_CNTR_AVGMINMAX,
 218                                      "cache_miss", "pages");
 219 #if OSD_THANDLE_STATS
 220                 lprocfs_counter_init(osd->od_stats, LPROC_OSD_THANDLE_STARTING,
 221                                      LPROCFS_CNTR_AVGMINMAX,
 222                                      "thandle starting", "usec");
 223                 lprocfs_counter_init(osd->od_stats, LPROC_OSD_THANDLE_OPEN,
 224                                      LPROCFS_CNTR_AVGMINMAX,
 225                                      "thandle open", "usec");
 226                 lprocfs_counter_init(osd->od_stats, LPROC_OSD_THANDLE_CLOSING,
 227                                      LPROCFS_CNTR_AVGMINMAX,
 228                                      "thandle closing", "usec");
 229 #endif
 230                 result = lprocfs_seq_create(osd->od_proc_entry, "brw_stats",
 231                                             0644, &osd_brw_stats_fops, osd);
 232         } else
 233                 result = -ENOMEM;
 234
 235 out:
 236         RETURN(result);
 237 }
 238
 239 static int ldiskfs_osd_fstype_seq_show(struct seq_file *m, void *data)
 240 {
 241         struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
 242
 243         LASSERT(osd != NULL);
 244         seq_puts(m, "ldiskfs\n");
 245         return 0;
 246 }
 247 LPROC_SEQ_FOPS_RO(ldiskfs_osd_fstype);
 248
 249 static int ldiskfs_osd_mntdev_seq_show(struct seq_file *m, void *data)
 250 {
 251         struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
 252
 253         LASSERT(osd != NULL);
 254         if (unlikely(osd->od_mnt == NULL))
 255                 return -EINPROGRESS;
 256
 257         seq_printf(m, "%s\n", osd->od_mntdev);
 258         return 0;
 259 }
 260 LPROC_SEQ_FOPS_RO(ldiskfs_osd_mntdev);
 261
 262 static int ldiskfs_osd_cache_seq_show(struct seq_file *m, void *data)
 263 {
 264         struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
 265
 266         LASSERT(osd != NULL);
 267         if (unlikely(osd->od_mnt == NULL))
 268                 return -EINPROGRESS;
 269
 270         seq_printf(m, "%u\n", osd->od_read_cache);
 271         return 0;
 272 }
 273
 274 static ssize_t
 275 ldiskfs_osd_cache_seq_write(struct file *file, const char __user *buffer,
 276                             size_t count, loff_t *off)
 277 {
 278         struct seq_file *m = file->private_data;
 279         struct dt_device *dt = m->private;
 280         struct osd_device *osd = osd_dt_dev(dt);
 281         int rc;
 282         __s64 val;
 283
 284         LASSERT(osd != NULL);
 285         if (unlikely(osd->od_mnt == NULL))
 286                 return -EINPROGRESS;
 287
 288         rc = lprocfs_str_to_s64(buffer, count, &val);
 289         if (rc)
 290                 return rc;
 291
 292         osd->od_read_cache = !!val;
 293         return count;
 294 }
 295 LPROC_SEQ_FOPS(ldiskfs_osd_cache);
 296
 297 static int ldiskfs_osd_wcache_seq_show(struct seq_file *m, void *data)
 298 {
 299         struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
 300
 301         LASSERT(osd != NULL);
 302         if (unlikely(osd->od_mnt == NULL))
 303                 return -EINPROGRESS;
 304
 305         seq_printf(m, "%u\n", osd->od_writethrough_cache);
 306         return 0;
 307 }
 308
 309 static ssize_t
 310 ldiskfs_osd_wcache_seq_write(struct file *file, const char __user *buffer,
 311                                 size_t count, loff_t *off)
 312 {
 313         struct seq_file *m = file->private_data;
 314         struct dt_device *dt = m->private;
 315         struct osd_device *osd = osd_dt_dev(dt);
 316         int rc;
 317         __s64 val;
 318
 319         LASSERT(osd != NULL);
 320         if (unlikely(osd->od_mnt == NULL))
 321                 return -EINPROGRESS;
 322
 323         rc = lprocfs_str_to_s64(buffer, count, &val);
 324         if (rc)
 325                 return rc;
 326
 327         osd->od_writethrough_cache = !!val;
 328         return count;
 329 }
 330 LPROC_SEQ_FOPS(ldiskfs_osd_wcache);
 331
 332 static ssize_t
 333 lprocfs_osd_force_sync_seq_write(struct file *file, const char __user *buffer,
 334                                         size_t count, loff_t *off)
 335 {
 336         struct seq_file   *m = file->private_data;
 337         struct dt_device  *dt = m->private;
 338         struct osd_device *osd = osd_dt_dev(dt);
 339         struct lu_env      env;
 340         int                rc;
 341
 342         LASSERT(osd != NULL);
 343         if (unlikely(osd->od_mnt == NULL))
 344                 return -EINPROGRESS;
 345
 346         rc = lu_env_init(&env, LCT_LOCAL);
 347         if (rc)
 348                 return rc;
 349         rc = dt_sync(&env, dt);
 350         lu_env_fini(&env);
 351
 352         return rc == 0 ? count : rc;
 353 }
 354 LPROC_SEQ_FOPS_WO_TYPE(ldiskfs, osd_force_sync);
 355
 356 static int ldiskfs_osd_pdo_seq_show(struct seq_file *m, void *data)
 357 {
 358         seq_printf(m, "%s\n", ldiskfs_pdo ? "ON" : "OFF");
 359         return 0;
 360 }
 361
 362 static ssize_t
 363 ldiskfs_osd_pdo_seq_write(struct file *file, const char __user *buffer,
 364                                 size_t count, loff_t *off)
 365 {
 366         int rc;
 367         __s64 pdo;
 368
 369         rc = lprocfs_str_to_s64(buffer, count, &pdo);
 370         if (rc != 0)
 371                 return rc;
 372
 373         ldiskfs_pdo = !!pdo;
 374
 375         return count;
 376 }
 377 LPROC_SEQ_FOPS(ldiskfs_osd_pdo);
 378
 379 static int ldiskfs_osd_auto_scrub_seq_show(struct seq_file *m, void *data)
 380 {
 381         struct osd_device *dev = osd_dt_dev((struct dt_device *)m->private);
 382
 383         LASSERT(dev != NULL);
 384         if (unlikely(dev->od_mnt == NULL))
 385                 return -EINPROGRESS;
 386
 387         seq_printf(m, "%d\n", !dev->od_noscrub);
 388         return 0;
 389 }
 390
 391 static ssize_t
 392 ldiskfs_osd_auto_scrub_seq_write(struct file *file, const char __user *buffer,
 393                                         size_t count, loff_t *off)
 394 {
 395         struct seq_file *m = file->private_data;
 396         struct dt_device *dt = m->private;
 397         struct osd_device *dev = osd_dt_dev(dt);
 398         int rc;
 399         __s64 val;
 400
 401         LASSERT(dev != NULL);
 402         if (unlikely(dev->od_mnt == NULL))
 403                 return -EINPROGRESS;
 404
 405         rc = lprocfs_str_to_s64(buffer, count, &val);
 406         if (rc)
 407                 return rc;
 408
 409         dev->od_noscrub = !val;
 410         return count;
 411 }
 412 LPROC_SEQ_FOPS(ldiskfs_osd_auto_scrub);
 413
 414 static int ldiskfs_osd_full_scrub_ratio_seq_show(struct seq_file *m, void *data)
 415 {
 416         struct osd_device *dev = osd_dt_dev((struct dt_device *)m->private);
 417
 418         LASSERT(dev != NULL);
 419         if (unlikely(dev->od_mnt == NULL))
 420                 return -EINPROGRESS;
 421
 422         seq_printf(m, "%llu\n", dev->od_full_scrub_ratio);
 423         return 0;
 424 }
 425
 426 static ssize_t
 427 ldiskfs_osd_full_scrub_ratio_seq_write(struct file *file,
 428                                        const char __user *buffer,
 429                                        size_t count, loff_t *off)
 430 {
 431         struct seq_file *m = file->private_data;
 432         struct dt_device *dt = m->private;
 433         struct osd_device *dev = osd_dt_dev(dt);
 434         int rc;
 435         __s64 val;
 436
 437         LASSERT(dev != NULL);
 438         if (unlikely(dev->od_mnt == NULL))
 439                 return -EINPROGRESS;
 440
 441         rc = lprocfs_str_to_s64(buffer, count, &val);
 442         if (rc != 0)
 443                 return rc;
 444
 445         if (val < 0)
 446                 return -EINVAL;
 447
 448         dev->od_full_scrub_ratio = val;
 449         return count;
 450 }
 451 LPROC_SEQ_FOPS(ldiskfs_osd_full_scrub_ratio);
 452
 453 static int ldiskfs_osd_full_scrub_threshold_rate_seq_show(struct seq_file *m,
 454                                                           void *data)
 455 {
 456         struct osd_device *dev = osd_dt_dev((struct dt_device *)m->private);
 457
 458         LASSERT(dev != NULL);
 459         if (unlikely(dev->od_mnt == NULL))
 460                 return -EINPROGRESS;
 461
 462         seq_printf(m, "%llu (bad OI mappings/minute)\n",
 463                    dev->od_full_scrub_threshold_rate);
 464         return 0;
 465 }
 466
 467 static ssize_t
 468 ldiskfs_osd_full_scrub_threshold_rate_seq_write(struct file *file,
 469                                                 const char __user *buffer,
 470                                                 size_t count, loff_t *off)
 471 {
 472         struct seq_file *m = file->private_data;
 473         struct dt_device *dt = m->private;
 474         struct osd_device *dev = osd_dt_dev(dt);
 475         int rc;
 476         __s64 val;
 477
 478         LASSERT(dev != NULL);
 479         if (unlikely(dev->od_mnt == NULL))
 480                 return -EINPROGRESS;
 481
 482         rc = lprocfs_str_to_s64(buffer, count, &val);
 483         if (rc != 0)
 484                 return rc;
 485
 486         if (val < 0)
 487                 return -EINVAL;
 488
 489         dev->od_full_scrub_threshold_rate = val;
 490         return count;
 491 }
 492 LPROC_SEQ_FOPS(ldiskfs_osd_full_scrub_threshold_rate);
 493
 494 static int
 495 ldiskfs_osd_track_declares_assert_seq_show(struct seq_file *m, void *data)
 496 {
 497         seq_printf(m, "%d\n", ldiskfs_track_declares_assert);
 498         return 0;
 499 }
 500
 501 static ssize_t
 502 ldiskfs_osd_track_declares_assert_seq_write(struct file *file,
 503                                                 const char __user *buffer,
 504                                                 size_t count, loff_t *off)
 505 {
 506         __s64 track_declares_assert;
 507         int rc;
 508
 509         rc = lprocfs_str_to_s64(buffer, count, &track_declares_assert);
 510         if (rc != 0)
 511                 return rc;
 512
 513         ldiskfs_track_declares_assert = !!track_declares_assert;
 514
 515         return count;
 516 }
 517 LPROC_SEQ_FOPS(ldiskfs_osd_track_declares_assert);
 518
 519 static int ldiskfs_osd_oi_scrub_seq_show(struct seq_file *m, void *data)
 520 {
 521         struct osd_device *dev = osd_dt_dev((struct dt_device *)m->private);
 522
 523         LASSERT(dev != NULL);
 524         if (unlikely(dev->od_mnt == NULL))
 525                 return -EINPROGRESS;
 526
 527         return osd_scrub_dump(m, dev);
 528 }
 529 LPROC_SEQ_FOPS_RO(ldiskfs_osd_oi_scrub);
 530
 531 static int ldiskfs_osd_readcache_seq_show(struct seq_file *m, void *data)
 532 {
 533         struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
 534
 535         LASSERT(osd != NULL);
 536         if (unlikely(osd->od_mnt == NULL))
 537                 return -EINPROGRESS;
 538
 539         seq_printf(m, "%llu\n", osd->od_readcache_max_filesize);
 540         return 0;
 541 }
 542
 543 static ssize_t
 544 ldiskfs_osd_readcache_seq_write(struct file *file, const char __user *buffer,
 545                                 size_t count, loff_t *off)
 546 {
 547         struct seq_file *m = file->private_data;
 548         struct dt_device *dt = m->private;
 549         struct osd_device *osd = osd_dt_dev(dt);
 550         __s64 val;
 551         int rc;
 552
 553         LASSERT(osd != NULL);
 554         if (unlikely(osd->od_mnt == NULL))
 555                 return -EINPROGRESS;
 556
 557         rc = lprocfs_str_with_units_to_s64(buffer, count, &val, '1');
 558         if (rc)
 559                 return rc;
 560         if (val < 0)
 561                 return -ERANGE;
 562
 563         osd->od_readcache_max_filesize = val > OSD_MAX_CACHE_SIZE ?
 564                                          OSD_MAX_CACHE_SIZE : val;
 565         return count;
 566 }
 567 LPROC_SEQ_FOPS(ldiskfs_osd_readcache);
 568
 569 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
 570 static int ldiskfs_osd_index_in_idif_seq_show(struct seq_file *m, void *data)
 571 {
 572         struct osd_device *dev = osd_dt_dev((struct dt_device *)m->private);
 573
 574         LASSERT(dev != NULL);
 575         if (unlikely(dev->od_mnt == NULL))
 576                 return -EINPROGRESS;
 577
 578         seq_printf(m, "%d\n", (int)(dev->od_index_in_idif));
 579         return 0;
 580 }
 581
 582 static ssize_t
 583 ldiskfs_osd_index_in_idif_seq_write(struct file *file,
 584                                     const char __user *buffer,
 585                                     size_t count, loff_t *off)
 586 {
 587         struct lu_env env;
 588         struct seq_file *m = file->private_data;
 589         struct dt_device *dt = m->private;
 590         struct osd_device *dev = osd_dt_dev(dt);
 591         struct lu_target *tgt;
 592         __s64 val;
 593         int rc;
 594
 595         LASSERT(dev != NULL);
 596         if (unlikely(dev->od_mnt == NULL))
 597                 return -EINPROGRESS;
 598
 599         rc = lprocfs_str_to_s64(buffer, count, &val);
 600         if (rc != 0)
 601                 return rc;
 602
 603         if (dev->od_index_in_idif) {
 604                 if (val != 0)
 605                         return count;
 606
 607                 LCONSOLE_WARN("%s: OST-index in IDIF has been enabled, "
 608                               "it cannot be reverted back.\n", osd_name(dev));
 609                 return -EPERM;
 610         }
 611
 612         if (val == 0)
 613                 return count;
 614
 615         rc = lu_env_init(&env, LCT_DT_THREAD);
 616         if (rc != 0)
 617                 return rc;
 618
 619         tgt = dev->od_dt_dev.dd_lu_dev.ld_site->ls_tgt;
 620         tgt->lut_lsd.lsd_feature_rocompat |= OBD_ROCOMPAT_IDX_IN_IDIF;
 621         rc = tgt_server_data_update(&env, tgt, 1);
 622         lu_env_fini(&env);
 623         if (rc < 0)
 624                 return rc;
 625
 626         LCONSOLE_INFO("%s: enable OST-index in IDIF successfully, "
 627                       "it cannot be reverted back.\n", osd_name(dev));
 628
 629         dev->od_index_in_idif = 1;
 630         return count;
 631 }
 632 LPROC_SEQ_FOPS(ldiskfs_osd_index_in_idif);
 633
 634 int osd_register_proc_index_in_idif(struct osd_device *osd)
 635 {
 636         struct proc_dir_entry *proc;
 637
 638         proc = proc_create_data("index_in_idif", 0, osd->od_proc_entry,
 639                                 &ldiskfs_osd_index_in_idif_fops,
 640                                 &osd->od_dt_dev);
 641         if (proc == NULL)
 642                 return -ENOMEM;
 643
 644         return 0;
 645 }
 646 #endif
 647
 648 LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_blksize);
 649 LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_kbytestotal);
 650 LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_kbytesfree);
 651 LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_kbytesavail);
 652 LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_filestotal);
 653 LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_filesfree);
 654
 655 struct lprocfs_vars lprocfs_osd_obd_vars[] = {
 656         { .name =       "blocksize",
 657           .fops =       &ldiskfs_dt_blksize_fops        },
 658         { .name =       "kbytestotal",
 659           .fops =       &ldiskfs_dt_kbytestotal_fops    },
 660         { .name =       "kbytesfree",
 661           .fops =       &ldiskfs_dt_kbytesfree_fops     },
 662         { .name =       "kbytesavail",
 663           .fops =       &ldiskfs_dt_kbytesavail_fops    },
 664         { .name =       "filestotal",
 665           .fops =       &ldiskfs_dt_filestotal_fops     },
 666         { .name =       "filesfree",
 667           .fops =       &ldiskfs_dt_filesfree_fops      },
 668         { .name =       "fstype",
 669           .fops =       &ldiskfs_osd_fstype_fops        },
 670         { .name =       "mntdev",
 671           .fops =       &ldiskfs_osd_mntdev_fops        },
 672         { .name =       "force_sync",
 673           .fops =       &ldiskfs_osd_force_sync_fops    },
 674         { .name =       "pdo",
 675           .fops =       &ldiskfs_osd_pdo_fops           },
 676         { .name =       "auto_scrub",
 677           .fops =       &ldiskfs_osd_auto_scrub_fops    },
 678         { .name =       "full_scrub_ratio",
 679           .fops =       &ldiskfs_osd_full_scrub_ratio_fops      },
 680         { .name =       "full_scrub_threshold_rate",
 681           .fops =       &ldiskfs_osd_full_scrub_threshold_rate_fops     },
 682         { .name =       "oi_scrub",
 683           .fops =       &ldiskfs_osd_oi_scrub_fops      },
 684         { .name =       "read_cache_enable",
 685           .fops =       &ldiskfs_osd_cache_fops         },
 686         { .name =       "writethrough_cache_enable",
 687           .fops =       &ldiskfs_osd_wcache_fops        },
 688         { .name =       "readcache_max_filesize",
 689           .fops =       &ldiskfs_osd_readcache_fops     },
 690         { NULL }
 691 };
 692
 693 struct lprocfs_vars lprocfs_osd_module_vars[] = {
 694         { .name =       "track_declares_assert",
 695           .fops =       &ldiskfs_osd_track_declares_assert_fops         },
 696         { NULL }
 697 };
 698
 699
 700 int osd_procfs_init(struct osd_device *osd, const char *name)
 701 {
 702         struct obd_type *type;
 703         int             rc;
 704         ENTRY;
 705
 706         if (osd->od_proc_entry)
 707                 RETURN(0);
 708
 709         /* at the moment there is no linkage between lu_type
 710          * and obd_type, so we lookup obd_type this way */
 711         type = class_search_type(LUSTRE_OSD_LDISKFS_NAME);
 712
 713         LASSERT(name != NULL);
 714         LASSERT(type != NULL);
 715
 716         /* Find the type procroot and add the proc entry for this device */
 717         osd->od_proc_entry = lprocfs_register(name, type->typ_procroot,
 718                                               lprocfs_osd_obd_vars,
 719                                               &osd->od_dt_dev);
 720         if (IS_ERR(osd->od_proc_entry)) {
 721                 rc = PTR_ERR(osd->od_proc_entry);
 722                 CERROR("Error %d setting up lprocfs for %s\n",
 723                        rc, name);
 724                 osd->od_proc_entry = NULL;
 725                 GOTO(out, rc);
 726         }
 727
 728         rc = osd_stats_init(osd);
 729
 730         EXIT;
 731 out:
 732         if (rc)
 733                 osd_procfs_fini(osd);
 734         return rc;
 735 }
 736
 737 int osd_procfs_fini(struct osd_device *osd)
 738 {
 739         if (osd->od_stats)
 740                 lprocfs_free_stats(&osd->od_stats);
 741
 742         if (osd->od_proc_entry)
 743                 lprocfs_remove(&osd->od_proc_entry);
 744         RETURN(0);
 745 }
 746 #endif