lustre/obdclass/lprocfs_status_server.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.sun.com/software/products/lustre/docs/GPLv2.pdf
  19  *
  20  * GPL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  * Copyright (c) 2011, 2013, 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/obdclass/lprocfs_status_server.c
  33  */
  34
  35 #define DEBUG_SUBSYSTEM S_CLASS
  36
  37
  38 #include <obd_class.h>
  39 #include <lprocfs_status.h>
  40 #include <lustre/lustre_idl.h>
  41
  42 #if defined(LPROCFS)
  43
  44 int lprocfs_evict_client_open(struct inode *inode, struct file *f)
  45 {
  46         struct obd_device *obd = PDE_DATA(f->f_dentry->d_inode);
  47
  48         atomic_inc(&obd->obd_evict_inprogress);
  49         return 0;
  50 }
  51
  52 int lprocfs_evict_client_release(struct inode *inode, struct file *f)
  53 {
  54         struct obd_device *obd = PDE_DATA(f->f_dentry->d_inode);
  55
  56         atomic_dec(&obd->obd_evict_inprogress);
  57         wake_up(&obd->obd_evict_inprogress_waitq);
  58
  59         return 0;
  60 }
  61
  62 #define BUFLEN (UUID_MAX + 5)
  63
  64 ssize_t
  65 lprocfs_evict_client_seq_write(struct file *file, const char *buffer,
  66                                size_t count, loff_t *off)
  67 {
  68         struct seq_file *m = file->private_data;
  69         struct obd_device *obd = m->private;
  70         char *tmpbuf, *kbuf;
  71
  72         OBD_ALLOC(kbuf, BUFLEN);
  73         if (kbuf == NULL)
  74                 return -ENOMEM;
  75
  76         /*
  77          * OBD_ALLOC() will zero kbuf, but we only copy BUFLEN - 1
  78          * bytes into kbuf, to ensure that the string is NUL-terminated.
  79          * UUID_MAX should include a trailing NUL already.
  80          */
  81         if (copy_from_user(kbuf, buffer,
  82                            min_t(unsigned long, BUFLEN - 1, count))) {
  83                 count = -EFAULT;
  84                 goto out;
  85         }
  86         tmpbuf = cfs_firststr(kbuf, min_t(unsigned long, BUFLEN - 1, count));
  87         class_incref(obd, __func__, current);
  88
  89         if (strncmp(tmpbuf, "nid:", 4) == 0)
  90                 obd_export_evict_by_nid(obd, tmpbuf + 4);
  91         else if (strncmp(tmpbuf, "uuid:", 5) == 0)
  92                 obd_export_evict_by_uuid(obd, tmpbuf + 5);
  93         else
  94                 obd_export_evict_by_uuid(obd, tmpbuf);
  95
  96         class_decref(obd, __func__, current);
  97
  98 out:
  99         OBD_FREE(kbuf, BUFLEN);
 100         return count;
 101 }
 102 EXPORT_SYMBOL(lprocfs_evict_client_seq_write);
 103
 104 #undef BUFLEN
 105
 106 int lprocfs_num_exports_seq_show(struct seq_file *m, void *data)
 107 {
 108         struct obd_device *obd = data;
 109
 110         LASSERT(obd != NULL);
 111         return seq_printf(m, "%u\n", obd->obd_num_exports);
 112 }
 113 EXPORT_SYMBOL(lprocfs_num_exports_seq_show);
 114
 115 static void lprocfs_free_client_stats(struct nid_stat *client_stat)
 116 {
 117         CDEBUG(D_CONFIG, "stat %p - data %p/%p\n", client_stat,
 118                client_stat->nid_proc, client_stat->nid_stats);
 119
 120         LASSERTF(atomic_read(&client_stat->nid_exp_ref_count) == 0,
 121                  "nid %s:count %d\n", libcfs_nid2str(client_stat->nid),
 122                  atomic_read(&client_stat->nid_exp_ref_count));
 123
 124         if (client_stat->nid_proc)
 125                 lprocfs_remove(&client_stat->nid_proc);
 126
 127         if (client_stat->nid_stats)
 128                 lprocfs_free_stats(&client_stat->nid_stats);
 129
 130         if (client_stat->nid_ldlm_stats)
 131                 lprocfs_free_stats(&client_stat->nid_ldlm_stats);
 132
 133         OBD_FREE_PTR(client_stat);
 134         return;
 135 }
 136
 137 void lprocfs_free_per_client_stats(struct obd_device *obd)
 138 {
 139         cfs_hash_t *hash = obd->obd_nid_stats_hash;
 140         struct nid_stat *stat;
 141         ENTRY;
 142
 143         /* we need extra list - because hash_exit called to early */
 144         /* not need locking because all clients is died */
 145         while (!list_empty(&obd->obd_nid_stats)) {
 146                 stat = list_entry(obd->obd_nid_stats.next,
 147                                   struct nid_stat, nid_list);
 148                 list_del_init(&stat->nid_list);
 149                 cfs_hash_del(hash, &stat->nid, &stat->nid_hash);
 150                 lprocfs_free_client_stats(stat);
 151         }
 152         EXIT;
 153 }
 154 EXPORT_SYMBOL(lprocfs_free_per_client_stats);
 155
 156 int lprocfs_exp_nid_seq_show(struct seq_file *m, void *data)
 157 {
 158         struct obd_export *exp = m->private;
 159         LASSERT(exp != NULL);
 160         return seq_printf(m, "%s\n", obd_export_nid2str(exp));
 161 }
 162
 163 int lprocfs_exp_print_uuid_seq(cfs_hash_t *hs, cfs_hash_bd_t *bd,
 164                                 struct hlist_node *hnode, void *cb_data)
 165
 166 {
 167         struct obd_export *exp = cfs_hash_object(hs, hnode);
 168         struct seq_file *m = cb_data;
 169
 170         if (exp->exp_nid_stats)
 171                 seq_printf(m, "%s\n", obd_uuid2str(&exp->exp_client_uuid));
 172         return 0;
 173 }
 174
 175 int lprocfs_exp_uuid_seq_show(struct seq_file *m, void *data)
 176 {
 177         struct nid_stat *stats = m->private;
 178         struct obd_device *obd = stats->nid_obd;
 179
 180         cfs_hash_for_each_key(obd->obd_nid_hash, &stats->nid,
 181                                 lprocfs_exp_print_uuid_seq, m);
 182         return 0;
 183 }
 184 LPROC_SEQ_FOPS_RO(lprocfs_exp_uuid);
 185
 186 int lprocfs_exp_print_hash_seq(cfs_hash_t *hs, cfs_hash_bd_t *bd,
 187                                 struct hlist_node *hnode, void *cb_data)
 188
 189 {
 190         struct seq_file *m = cb_data;
 191         struct obd_export *exp = cfs_hash_object(hs, hnode);
 192
 193         if (exp->exp_lock_hash != NULL) {
 194                 cfs_hash_debug_header(m);
 195                 cfs_hash_debug_str(hs, m);
 196         }
 197         return 0;
 198 }
 199
 200 int lprocfs_exp_hash_seq_show(struct seq_file *m, void *data)
 201 {
 202         struct nid_stat *stats = m->private;
 203         struct obd_device *obd = stats->nid_obd;
 204
 205         cfs_hash_for_each_key(obd->obd_nid_hash, &stats->nid,
 206                                 lprocfs_exp_print_hash_seq, m);
 207         return 0;
 208 }
 209 LPROC_SEQ_FOPS_RO(lprocfs_exp_hash);
 210
 211 int lprocfs_nid_stats_clear_seq_show(struct seq_file *m, void *data)
 212 {
 213         return seq_printf(m, "%s\n", "Write into this file to clear all nid "
 214                           "stats and stale nid entries");
 215 }
 216 EXPORT_SYMBOL(lprocfs_nid_stats_clear_seq_show);
 217
 218 static int lprocfs_nid_stats_clear_write_cb(void *obj, void *data)
 219 {
 220         struct nid_stat *stat = obj;
 221         ENTRY;
 222
 223         CDEBUG(D_INFO, "refcnt %d\n", atomic_read(&stat->nid_exp_ref_count));
 224         if (atomic_read(&stat->nid_exp_ref_count) == 1) {
 225                 /* object has only hash references. */
 226                 spin_lock(&stat->nid_obd->obd_nid_lock);
 227                 list_move(&stat->nid_list, data);
 228                 spin_unlock(&stat->nid_obd->obd_nid_lock);
 229                 RETURN(1);
 230         }
 231         /* we has reference to object - only clear data*/
 232         if (stat->nid_stats)
 233                 lprocfs_clear_stats(stat->nid_stats);
 234
 235         RETURN(0);
 236 }
 237
 238 ssize_t
 239 lprocfs_nid_stats_clear_seq_write(struct file *file, const char *buffer,
 240                                         size_t count, loff_t *off)
 241 {
 242         struct seq_file *m = file->private_data;
 243         struct obd_device *obd = m->private;
 244         struct nid_stat *client_stat;
 245         struct list_head free_list;
 246
 247         INIT_LIST_HEAD(&free_list);
 248         cfs_hash_cond_del(obd->obd_nid_stats_hash,
 249                           lprocfs_nid_stats_clear_write_cb, &free_list);
 250
 251         while (!list_empty(&free_list)) {
 252                 client_stat = list_entry(free_list.next, struct nid_stat,
 253                                          nid_list);
 254                 list_del_init(&client_stat->nid_list);
 255                 lprocfs_free_client_stats(client_stat);
 256         }
 257         return count;
 258 }
 259 EXPORT_SYMBOL(lprocfs_nid_stats_clear_seq_write);
 260
 261 int lprocfs_exp_setup(struct obd_export *exp, lnet_nid_t *nid, int *newnid)
 262 {
 263         struct nid_stat *new_stat, *old_stat;
 264         struct obd_device *obd = NULL;
 265         struct proc_dir_entry *entry;
 266         char *buffer = NULL;
 267         int rc = 0;
 268         ENTRY;
 269
 270         *newnid = 0;
 271
 272         if (!exp || !exp->exp_obd || !exp->exp_obd->obd_proc_exports_entry ||
 273             !exp->exp_obd->obd_nid_stats_hash)
 274                 RETURN(-EINVAL);
 275
 276         /* not test against zero because eric say:
 277          * You may only test nid against another nid, or LNET_NID_ANY.
 278          * Anything else is nonsense.*/
 279         if (!nid || *nid == LNET_NID_ANY)
 280                 RETURN(0);
 281
 282         spin_lock(&exp->exp_lock);
 283         if (exp->exp_nid_stats != NULL) {
 284                 spin_unlock(&exp->exp_lock);
 285                 RETURN(-EALREADY);
 286         }
 287         spin_unlock(&exp->exp_lock);
 288
 289         obd = exp->exp_obd;
 290
 291         CDEBUG(D_CONFIG, "using hash %p\n", obd->obd_nid_stats_hash);
 292
 293         OBD_ALLOC_PTR(new_stat);
 294         if (new_stat == NULL)
 295                 RETURN(-ENOMEM);
 296
 297         new_stat->nid           = *nid;
 298         new_stat->nid_obd       = exp->exp_obd;
 299         /* we need set default refcount to 1 to balance obd_disconnect */
 300         atomic_set(&new_stat->nid_exp_ref_count, 1);
 301
 302         old_stat = cfs_hash_findadd_unique(obd->obd_nid_stats_hash,
 303                                            nid, &new_stat->nid_hash);
 304         CDEBUG(D_INFO, "Found stats %p for nid %s - ref %d\n",
 305                old_stat, libcfs_nid2str(*nid),
 306                atomic_read(&new_stat->nid_exp_ref_count));
 307
 308         /* Return -EALREADY here so that we know that the /proc
 309          * entry already has been created */
 310         if (old_stat != new_stat) {
 311                 spin_lock(&exp->exp_lock);
 312                 if (exp->exp_nid_stats) {
 313                         LASSERT(exp->exp_nid_stats == old_stat);
 314                         nidstat_putref(exp->exp_nid_stats);
 315                 }
 316                 exp->exp_nid_stats = old_stat;
 317                 spin_unlock(&exp->exp_lock);
 318                 GOTO(destroy_new, rc = -EALREADY);
 319         }
 320         /* not found - create */
 321         OBD_ALLOC(buffer, LNET_NIDSTR_SIZE);
 322         if (buffer == NULL)
 323                 GOTO(destroy_new, rc = -ENOMEM);
 324
 325         memcpy(buffer, libcfs_nid2str(*nid), LNET_NIDSTR_SIZE);
 326 #ifndef HAVE_ONLY_PROCFS_SEQ
 327         new_stat->nid_proc = lprocfs_register(buffer,
 328                                               obd->obd_proc_exports_entry,
 329                                               NULL, NULL);
 330 #else
 331         new_stat->nid_proc = lprocfs_seq_register(buffer,
 332                                                   obd->obd_proc_exports_entry,
 333                                                   NULL, NULL);
 334 #endif
 335         OBD_FREE(buffer, LNET_NIDSTR_SIZE);
 336
 337         if (IS_ERR(new_stat->nid_proc)) {
 338                 rc = PTR_ERR(new_stat->nid_proc);
 339                 new_stat->nid_proc = NULL;
 340                 CERROR("%s: cannot create proc entry for export %s: rc = %d\n",
 341                        obd->obd_name, libcfs_nid2str(*nid), rc);
 342                 GOTO(destroy_new_ns, rc);
 343         }
 344
 345         entry = lprocfs_add_simple(new_stat->nid_proc, "uuid", new_stat,
 346                                    &lprocfs_exp_uuid_fops);
 347         if (IS_ERR(entry)) {
 348                 CWARN("Error adding the NID stats file\n");
 349                 rc = PTR_ERR(entry);
 350                 GOTO(destroy_new_ns, rc);
 351         }
 352
 353         entry = lprocfs_add_simple(new_stat->nid_proc, "hash", new_stat,
 354                                    &lprocfs_exp_hash_fops);
 355         if (IS_ERR(entry)) {
 356                 CWARN("Error adding the hash file\n");
 357                 rc = PTR_ERR(entry);
 358                 GOTO(destroy_new_ns, rc);
 359         }
 360
 361         spin_lock(&exp->exp_lock);
 362         exp->exp_nid_stats = new_stat;
 363         spin_unlock(&exp->exp_lock);
 364         *newnid = 1;
 365         /* protect competitive add to list, not need locking on destroy */
 366         spin_lock(&obd->obd_nid_lock);
 367         list_add(&new_stat->nid_list, &obd->obd_nid_stats);
 368         spin_unlock(&obd->obd_nid_lock);
 369
 370         RETURN(rc);
 371
 372 destroy_new_ns:
 373         if (new_stat->nid_proc != NULL)
 374                 lprocfs_remove(&new_stat->nid_proc);
 375         cfs_hash_del(obd->obd_nid_stats_hash, nid, &new_stat->nid_hash);
 376
 377 destroy_new:
 378         nidstat_putref(new_stat);
 379         OBD_FREE_PTR(new_stat);
 380         RETURN(rc);
 381 }
 382 EXPORT_SYMBOL(lprocfs_exp_setup);
 383
 384 int lprocfs_exp_cleanup(struct obd_export *exp)
 385 {
 386         struct nid_stat *stat = exp->exp_nid_stats;
 387
 388         if (!stat || !exp->exp_obd)
 389                 RETURN(0);
 390
 391         nidstat_putref(exp->exp_nid_stats);
 392         exp->exp_nid_stats = NULL;
 393
 394         return 0;
 395 }
 396 EXPORT_SYMBOL(lprocfs_exp_cleanup);
 397
 398 #define LPROCFS_OBD_OP_INIT(base, stats, op)                    \
 399 do {                                                            \
 400         unsigned int coffset = base + OBD_COUNTER_OFFSET(op);   \
 401         LASSERT(coffset < stats->ls_num);                       \
 402         lprocfs_counter_init(stats, coffset, 0, #op, "reqs");   \
 403 } while (0)
 404
 405 void lprocfs_init_ops_stats(int num_private_stats, struct lprocfs_stats *stats)
 406 {
 407         LPROCFS_OBD_OP_INIT(num_private_stats, stats, iocontrol);
 408         LPROCFS_OBD_OP_INIT(num_private_stats, stats, get_info);
 409         LPROCFS_OBD_OP_INIT(num_private_stats, stats, set_info_async);
 410         LPROCFS_OBD_OP_INIT(num_private_stats, stats, setup);
 411         LPROCFS_OBD_OP_INIT(num_private_stats, stats, precleanup);
 412         LPROCFS_OBD_OP_INIT(num_private_stats, stats, cleanup);
 413         LPROCFS_OBD_OP_INIT(num_private_stats, stats, process_config);
 414         LPROCFS_OBD_OP_INIT(num_private_stats, stats, postrecov);
 415         LPROCFS_OBD_OP_INIT(num_private_stats, stats, add_conn);
 416         LPROCFS_OBD_OP_INIT(num_private_stats, stats, del_conn);
 417         LPROCFS_OBD_OP_INIT(num_private_stats, stats, connect);
 418         LPROCFS_OBD_OP_INIT(num_private_stats, stats, reconnect);
 419         LPROCFS_OBD_OP_INIT(num_private_stats, stats, disconnect);
 420         LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_init);
 421         LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_fini);
 422         LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_alloc);
 423         LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs);
 424         LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs_async);
 425         LPROCFS_OBD_OP_INIT(num_private_stats, stats, packmd);
 426         LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpackmd);
 427         LPROCFS_OBD_OP_INIT(num_private_stats, stats, create);
 428         LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy);
 429         LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr);
 430         LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr_async);
 431         LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr);
 432         LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr_async);
 433         LPROCFS_OBD_OP_INIT(num_private_stats, stats, preprw);
 434         LPROCFS_OBD_OP_INIT(num_private_stats, stats, commitrw);
 435         LPROCFS_OBD_OP_INIT(num_private_stats, stats, change_cbdata);
 436         LPROCFS_OBD_OP_INIT(num_private_stats, stats, find_cbdata);
 437         LPROCFS_OBD_OP_INIT(num_private_stats, stats, init_export);
 438         LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy_export);
 439         LPROCFS_OBD_OP_INIT(num_private_stats, stats, import_event);
 440         LPROCFS_OBD_OP_INIT(num_private_stats, stats, notify);
 441         LPROCFS_OBD_OP_INIT(num_private_stats, stats, health_check);
 442         LPROCFS_OBD_OP_INIT(num_private_stats, stats, get_uuid);
 443         LPROCFS_OBD_OP_INIT(num_private_stats, stats, quotacheck);
 444         LPROCFS_OBD_OP_INIT(num_private_stats, stats, quotactl);
 445         LPROCFS_OBD_OP_INIT(num_private_stats, stats, ping);
 446         LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_new);
 447         LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_rem);
 448         LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_add);
 449         LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_del);
 450         LPROCFS_OBD_OP_INIT(num_private_stats, stats, getref);
 451         LPROCFS_OBD_OP_INIT(num_private_stats, stats, putref);
 452
 453         CLASSERT(NUM_OBD_STATS == OBD_COUNTER_OFFSET(putref) + 1);
 454 }
 455 EXPORT_SYMBOL(lprocfs_init_ops_stats);
 456
 457 int lprocfs_alloc_obd_stats(struct obd_device *obd, unsigned num_private_stats)
 458 {
 459         struct lprocfs_stats *stats;
 460         unsigned int num_stats;
 461         int rc, i;
 462
 463         LASSERT(obd->obd_stats == NULL);
 464         LASSERT(obd->obd_proc_entry != NULL);
 465         LASSERT(obd->obd_cntr_base == 0);
 466
 467         num_stats = NUM_OBD_STATS + num_private_stats;
 468         stats = lprocfs_alloc_stats(num_stats, 0);
 469         if (stats == NULL)
 470                 return -ENOMEM;
 471
 472         lprocfs_init_ops_stats(num_private_stats, stats);
 473
 474         for (i = num_private_stats; i < num_stats; i++) {
 475                 /* If this LBUGs, it is likely that an obd
 476                  * operation was added to struct obd_ops in
 477                  * <obd.h>, and that the corresponding line item
 478                  * LPROCFS_OBD_OP_INIT(.., .., opname)
 479                  * is missing from the list above. */
 480                 LASSERTF(stats->ls_cnt_header[i].lc_name != NULL,
 481                          "Missing obd_stat initializer obd_op "
 482                          "operation at offset %d.\n", i - num_private_stats);
 483         }
 484         rc = lprocfs_register_stats(obd->obd_proc_entry, "stats", stats);
 485         if (rc < 0) {
 486                 lprocfs_free_stats(&stats);
 487         } else {
 488                 obd->obd_stats  = stats;
 489                 obd->obd_cntr_base = num_private_stats;
 490         }
 491         return rc;
 492 }
 493 EXPORT_SYMBOL(lprocfs_alloc_obd_stats);
 494
 495 void lprocfs_free_obd_stats(struct obd_device *obd)
 496 {
 497         if (obd->obd_stats)
 498                 lprocfs_free_stats(&obd->obd_stats);
 499 }
 500 EXPORT_SYMBOL(lprocfs_free_obd_stats);
 501
 502 int lprocfs_hash_seq_show(struct seq_file *m, void *data)
 503 {
 504         struct obd_device *obd = m->private;
 505         int c = 0;
 506
 507         if (obd == NULL)
 508                 return 0;
 509
 510         c += cfs_hash_debug_header(m);
 511         c += cfs_hash_debug_str(obd->obd_uuid_hash, m);
 512         c += cfs_hash_debug_str(obd->obd_nid_hash, m);
 513         c += cfs_hash_debug_str(obd->obd_nid_stats_hash, m);
 514         return c;
 515 }
 516 EXPORT_SYMBOL(lprocfs_hash_seq_show);
 517
 518 int lprocfs_recovery_status_seq_show(struct seq_file *m, void *data)
 519 {
 520         struct obd_device *obd = m->private;
 521
 522         LASSERT(obd != NULL);
 523
 524         seq_printf(m, "status: ");
 525         if (obd->obd_max_recoverable_clients == 0) {
 526                 seq_printf(m, "INACTIVE\n");
 527                 goto out;
 528         }
 529
 530         /* sampled unlocked, but really... */
 531         if (obd->obd_recovering == 0) {
 532                 seq_printf(m, "COMPLETE\n");
 533                 seq_printf(m, "recovery_start: %lu\n", obd->obd_recovery_start);
 534                 seq_printf(m, "recovery_duration: %lu\n",
 535                            obd->obd_recovery_end - obd->obd_recovery_start);
 536                 /* Number of clients that have completed recovery */
 537                 seq_printf(m, "completed_clients: %d/%d\n",
 538                            obd->obd_max_recoverable_clients -
 539                            obd->obd_stale_clients,
 540                            obd->obd_max_recoverable_clients);
 541                 seq_printf(m, "replayed_requests: %d\n",
 542                            obd->obd_replayed_requests);
 543                 seq_printf(m, "last_transno: "LPD64"\n",
 544                            obd->obd_next_recovery_transno - 1);
 545                 seq_printf(m, "VBR: %s\n", obd->obd_version_recov ?
 546                            "ENABLED" : "DISABLED");
 547                 seq_printf(m, "IR: %s\n", obd->obd_no_ir ?
 548                            "DISABLED" : "ENABLED");
 549                 goto out;
 550         }
 551
 552         seq_printf(m, "RECOVERING\n");
 553         seq_printf(m, "recovery_start: %lu\n", obd->obd_recovery_start);
 554         seq_printf(m, "time_remaining: %lu\n",
 555                    cfs_time_current_sec() >=
 556                    obd->obd_recovery_start +
 557                    obd->obd_recovery_timeout ? 0 :
 558                    obd->obd_recovery_start +
 559                    obd->obd_recovery_timeout -
 560                    cfs_time_current_sec());
 561         seq_printf(m, "connected_clients: %d/%d\n",
 562                    atomic_read(&obd->obd_connected_clients),
 563                    obd->obd_max_recoverable_clients);
 564         /* Number of clients that have completed recovery */
 565         seq_printf(m, "req_replay_clients: %d\n",
 566                    atomic_read(&obd->obd_req_replay_clients));
 567         seq_printf(m, "lock_repay_clients: %d\n",
 568                    atomic_read(&obd->obd_lock_replay_clients));
 569         seq_printf(m, "completed_clients: %d\n",
 570                    atomic_read(&obd->obd_connected_clients) -
 571                    atomic_read(&obd->obd_lock_replay_clients));
 572         seq_printf(m, "evicted_clients: %d\n", obd->obd_stale_clients);
 573         seq_printf(m, "replayed_requests: %d\n", obd->obd_replayed_requests);
 574         seq_printf(m, "queued_requests: %d\n",
 575                    obd->obd_requests_queued_for_recovery);
 576         seq_printf(m, "next_transno: "LPD64"\n",
 577                    obd->obd_next_recovery_transno);
 578 out:
 579         return 0;
 580 }
 581 EXPORT_SYMBOL(lprocfs_recovery_status_seq_show);
 582
 583 int lprocfs_ir_factor_seq_show(struct seq_file *m, void *data)
 584 {
 585         struct obd_device *obd = m->private;
 586
 587         LASSERT(obd != NULL);
 588         return seq_printf(m, "%d\n", obd->obd_recovery_ir_factor);
 589 }
 590 EXPORT_SYMBOL(lprocfs_ir_factor_seq_show);
 591
 592 ssize_t
 593 lprocfs_ir_factor_seq_write(struct file *file, const char *buffer,
 594                             size_t count, loff_t *off)
 595 {
 596         struct seq_file *m = file->private_data;
 597         struct obd_device *obd = m->private;
 598         int val, rc;
 599
 600         LASSERT(obd != NULL);
 601         rc = lprocfs_write_helper(buffer, count, &val);
 602         if (rc)
 603                 return rc;
 604
 605         if (val < OBD_IR_FACTOR_MIN || val > OBD_IR_FACTOR_MAX)
 606                 return -EINVAL;
 607
 608         obd->obd_recovery_ir_factor = val;
 609         return count;
 610 }
 611 EXPORT_SYMBOL(lprocfs_ir_factor_seq_write);
 612
 613 int lprocfs_recovery_time_soft_seq_show(struct seq_file *m, void *data)
 614 {
 615         struct obd_device *obd = m->private;
 616
 617         LASSERT(obd != NULL);
 618         return seq_printf(m, "%d\n", obd->obd_recovery_timeout);
 619 }
 620 EXPORT_SYMBOL(lprocfs_recovery_time_soft_seq_show);
 621
 622 ssize_t
 623 lprocfs_recovery_time_soft_seq_write(struct file *file, const char *buffer,
 624                                         size_t count, loff_t *off)
 625 {
 626         struct seq_file *m = file->private_data;
 627         struct obd_device *obd = m->private;
 628         int val, rc;
 629
 630         LASSERT(obd != NULL);
 631         rc = lprocfs_write_helper(buffer, count, &val);
 632         if (rc)
 633                 return rc;
 634
 635         obd->obd_recovery_timeout = val;
 636         return count;
 637 }
 638 EXPORT_SYMBOL(lprocfs_recovery_time_soft_seq_write);
 639
 640 int lprocfs_recovery_time_hard_seq_show(struct seq_file *m, void *data)
 641 {
 642         struct obd_device *obd = m->private;
 643
 644         LASSERT(obd != NULL);
 645         return seq_printf(m, "%u\n", obd->obd_recovery_time_hard);
 646 }
 647 EXPORT_SYMBOL(lprocfs_recovery_time_hard_seq_show);
 648
 649 ssize_t
 650 lprocfs_recovery_time_hard_seq_write(struct file *file, const char *buffer,
 651                                      size_t count, loff_t *off)
 652 {
 653         struct seq_file *m = file->private_data;
 654         struct obd_device *obd = m->private;
 655         int val, rc;
 656
 657         LASSERT(obd != NULL);
 658         rc = lprocfs_write_helper(buffer, count, &val);
 659         if (rc)
 660                 return rc;
 661
 662         obd->obd_recovery_time_hard = val;
 663         return count;
 664 }
 665 EXPORT_SYMBOL(lprocfs_recovery_time_hard_seq_write);
 666
 667 int lprocfs_target_instance_seq_show(struct seq_file *m, void *data)
 668 {
 669         struct obd_device *obd = m->private;
 670         struct obd_device_target *target = &obd->u.obt;
 671
 672         LASSERT(obd != NULL);
 673         LASSERT(target->obt_magic == OBT_MAGIC);
 674         return seq_printf(m, "%u\n", obd->u.obt.obt_instance);
 675 }
 676 EXPORT_SYMBOL(lprocfs_target_instance_seq_show);
 677
 678 #endif /* LPROCFS*/