4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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.
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).
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
23 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2014, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
31 * lustre/obdclass/lprocfs_status_server.c
34 #define DEBUG_SUBSYSTEM S_CLASS
36 #include <linux/kobject.h>
37 #include <linux/sysfs.h>
39 #include <obd_class.h>
40 #include <lprocfs_status.h>
41 #include <lustre_nodemap.h>
43 #define MAX_STRING_SIZE 128
45 struct dentry *ldebugfs_add_symlink(const char *name, const char *target,
46 const char *format, ...)
48 struct dentry *entry = NULL;
49 struct dentry *parent;
54 if (!target || !format)
58 dname.len = strlen(dname.name);
59 dname.hash = ll_full_name_hash(debugfs_lustre_root,
60 dname.name, dname.len);
61 parent = d_lookup(debugfs_lustre_root, &dname);
65 OBD_ALLOC_WAIT(dest, MAX_STRING_SIZE + 1);
70 vsnprintf(dest, MAX_STRING_SIZE, format, ap);
73 entry = debugfs_create_symlink(name, parent, dest);
75 OBD_FREE(dest, MAX_STRING_SIZE + 1);
80 EXPORT_SYMBOL(ldebugfs_add_symlink);
82 int lprocfs_recovery_stale_clients_seq_show(struct seq_file *m, void *data)
84 struct obd_device *obd = m->private;
85 struct obd_export *exp, *n;
88 if (!obd->obd_recovering ||
89 atomic_read(&obd->obd_connected_clients) >=
90 atomic_read(&obd->obd_max_recoverable_clients))
94 spin_lock(&obd->obd_dev_lock);
95 list_for_each_entry_safe(exp, n, &obd->obd_exports, exp_obd_chain) {
96 /* don't count self-export as client */
97 if (obd_uuid_equals(&exp->exp_client_uuid,
98 &exp->exp_obd->obd_uuid))
101 /* don't count clients which have no slot in last_rcvd
102 * (e.g. lightweight connection)
104 if (exp->exp_target_data.ted_lr_idx == -1)
107 connected = !exp->exp_failed && (exp->exp_conn_cnt > 0);
110 seq_printf(m, "%s\n", exp->exp_client_uuid.uuid);
112 spin_unlock(&obd->obd_dev_lock);
116 EXPORT_SYMBOL(lprocfs_recovery_stale_clients_seq_show);
118 #ifdef CONFIG_PROC_FS
119 #define BUFLEN LNET_NIDSTR_SIZE
122 lprocfs_evict_client_seq_write(struct file *file, const char __user *buffer,
123 size_t count, loff_t *off)
125 struct seq_file *m = file->private_data;
126 struct obd_device *obd = m->private;
129 OBD_ALLOC(kbuf, BUFLEN);
134 * OBD_ALLOC() will zero kbuf, but we only copy BUFLEN - 1
135 * bytes into kbuf, to ensure that the string is NUL-terminated.
136 * LNET_NIDSTR_SIZE includes space for a trailing NUL already.
138 if (copy_from_user(kbuf, buffer,
139 min_t(unsigned long, BUFLEN - 1, count))) {
143 tmpbuf = skip_spaces(kbuf);
144 tmpbuf = strsep(&tmpbuf, " \t\n\f\v\r");
145 class_incref(obd, __func__, current);
147 if (strncmp(tmpbuf, "nid:", 4) == 0)
148 obd_export_evict_by_nid(obd, tmpbuf + 4);
149 else if (strncmp(tmpbuf, "uuid:", 5) == 0)
150 obd_export_evict_by_uuid(obd, tmpbuf + 5);
152 obd_export_evict_by_uuid(obd, tmpbuf);
154 class_decref(obd, __func__, current);
157 OBD_FREE(kbuf, BUFLEN);
160 EXPORT_SYMBOL(lprocfs_evict_client_seq_write);
164 ssize_t eviction_count_show(struct kobject *kobj, struct attribute *attr,
167 struct obd_device *obd = container_of(kobj, struct obd_device,
170 return scnprintf(buf, PAGE_SIZE, "%u\n",
171 atomic_read(&obd->obd_eviction_count));
173 EXPORT_SYMBOL(eviction_count_show);
175 ssize_t num_exports_show(struct kobject *kobj, struct attribute *attr,
178 struct obd_device *obd = container_of(kobj, struct obd_device,
181 return scnprintf(buf, PAGE_SIZE, "%u\n", obd->obd_num_exports);
183 EXPORT_SYMBOL(num_exports_show);
185 ssize_t grant_check_threshold_show(struct kobject *kobj, struct attribute *attr,
188 struct obd_device *obd = container_of(kobj, struct obd_device,
191 return scnprintf(buf, PAGE_SIZE, "%d\n",
192 obd->obd_grant_check_threshold);
194 EXPORT_SYMBOL(grant_check_threshold_show);
196 ssize_t grant_check_threshold_store(struct kobject *kobj,
197 struct attribute *attr,
198 const char *buffer, size_t count)
200 struct obd_device *obd = container_of(kobj, struct obd_device,
205 rc = kstrtoint(buffer, 10, &val);
211 obd->obd_grant_check_threshold = val;
214 EXPORT_SYMBOL(grant_check_threshold_store);
216 static int obd_export_flags2str(struct obd_export *exp, struct seq_file *m)
220 flag2str(exp, failed);
221 flag2str(exp, in_recovery);
222 flag2str(exp, disconnected);
223 flag2str(exp, connecting);
224 flag2str(exp, no_recovery);
230 lprocfs_exp_print_export_seq(struct obd_export *exp, void *cb_data)
232 struct seq_file *m = cb_data;
233 struct obd_device *obd;
234 struct obd_connect_data *ocd;
236 LASSERT(exp != NULL);
237 if (exp->exp_nid_stats == NULL)
240 ocd = &exp->exp_connect_data;
242 seq_printf(m, "%s:\n"
245 " connect_flags: [ ",
246 obd_uuid2str(&exp->exp_client_uuid),
248 obd_export_nid2str(exp));
249 obd_connect_seq_flags2str(m, ocd->ocd_connect_flags,
250 ocd->ocd_connect_flags2, ", ");
251 seq_printf(m, " ]\n");
252 obd_connect_data_seqprint(m, ocd);
253 seq_printf(m, " export_flags: [ ");
254 obd_export_flags2str(exp, m);
255 seq_printf(m, " ]\n");
258 strcmp(obd->obd_type->typ_name, "obdfilter") == 0) {
259 struct filter_export_data *fed = &exp->exp_filter_data;
261 seq_printf(m, " grant:\n");
262 seq_printf(m, " granted: %ld\n",
263 fed->fed_ted.ted_grant);
264 seq_printf(m, " dirty: %ld\n",
265 fed->fed_ted.ted_dirty);
266 seq_printf(m, " pending: %ld\n",
267 fed->fed_ted.ted_pending);
275 * RPC connections are composed of an import and an export. Using the
276 * lctl utility we can extract important information about the state.
277 * The lprocfs_exp_export_seq_show routine displays the state information
280 * \param[in] m seq file
281 * \param[in] data unused
283 * \retval 0 on success
285 * The format of the export state information is like:
286 * a793e354-49c0-aa11-8c4f-a4f2b1a1a92b:
288 * client: 10.211.55.10@tcp
289 * connect_flags: [ version, barrier, adaptive_timeouts, ... ]
291 * flags: 0x2000011005002020
293 * target_version: 2.10.51.0
294 * export_flags: [ ... ]
297 static int lprocfs_exp_export_seq_show(struct seq_file *m, void *data)
299 struct nid_stat *stats = m->private;
301 return obd_nid_export_for_each(stats->nid_obd, &stats->nid,
302 lprocfs_exp_print_export_seq, m);
304 LPROC_SEQ_FOPS_RO(lprocfs_exp_export);
306 static void lprocfs_free_client_stats(struct nid_stat *client_stat)
308 CDEBUG(D_CONFIG, "stat %p - data %p/%p\n", client_stat,
309 client_stat->nid_proc, client_stat->nid_stats);
311 LASSERTF(atomic_read(&client_stat->nid_exp_ref_count) == 0,
312 "nid %s:count %d\n", libcfs_nidstr(&client_stat->nid),
313 atomic_read(&client_stat->nid_exp_ref_count));
315 if (client_stat->nid_proc)
316 lprocfs_remove(&client_stat->nid_proc);
318 if (client_stat->nid_stats)
319 lprocfs_stats_free(&client_stat->nid_stats);
321 if (client_stat->nid_ldlm_stats)
322 lprocfs_stats_free(&client_stat->nid_ldlm_stats);
324 OBD_FREE_PTR(client_stat);
327 void lprocfs_free_per_client_stats(struct obd_device *obd)
329 struct cfs_hash *hash = obd->obd_nid_stats_hash;
330 struct nid_stat *stat;
333 /* we need extra list - because hash_exit called to early */
334 /* not need locking because all clients is died */
335 while (!list_empty(&obd->obd_nid_stats)) {
336 stat = list_first_entry(&obd->obd_nid_stats,
337 struct nid_stat, nid_list);
338 list_del_init(&stat->nid_list);
339 cfs_hash_del(hash, &stat->nid, &stat->nid_hash);
340 lprocfs_free_client_stats(stat);
344 EXPORT_SYMBOL(lprocfs_free_per_client_stats);
347 lprocfs_exp_print_nodemap_seq(struct obd_export *exp, void *cb_data)
349 struct lu_nodemap *nodemap = exp->exp_target_data.ted_nodemap;
350 struct seq_file *m = cb_data;
353 seq_printf(m, "%s\n", nodemap->nm_name);
358 lprocfs_exp_nodemap_seq_show(struct seq_file *m, void *data)
360 struct nid_stat *stats = m->private;
362 return obd_nid_export_for_each(stats->nid_obd, &stats->nid,
363 lprocfs_exp_print_nodemap_seq, m);
365 LPROC_SEQ_FOPS_RO(lprocfs_exp_nodemap);
368 lprocfs_exp_print_uuid_seq(struct obd_export *exp, void *cb_data)
370 struct seq_file *m = cb_data;
372 if (exp->exp_nid_stats)
373 seq_printf(m, "%s\n", obd_uuid2str(&exp->exp_client_uuid));
377 static int lprocfs_exp_uuid_seq_show(struct seq_file *m, void *data)
379 struct nid_stat *stats = m->private;
381 return obd_nid_export_for_each(stats->nid_obd, &stats->nid,
382 lprocfs_exp_print_uuid_seq, m);
384 LPROC_SEQ_FOPS_RO(lprocfs_exp_uuid);
386 #define HASH_NAME_LEN 16
388 static void ldebugfs_rhash_seq_show(const char *name, struct rhashtable *ht,
391 unsigned int max_size = ht->p.max_size ? ht->p.max_size : UINT_MAX;
392 struct bucket_table *tbl;
393 int dist[8] = { 0, };
398 tbl = rht_dereference(ht->tbl, ht);
399 for (i = 0; i < tbl->size; i++) {
400 struct rhash_head *pos;
403 rht_for_each(pos, tbl, i)
407 maxdep = max(maxdep, count);
409 dist[min(fls(count), 7)]++;
412 seq_printf(m, "%-*s %5d %5d %10u %d.%03d 0.300 0.750 0x%03x %7d %7d %7d ",
413 HASH_NAME_LEN, name, tbl->size, ht->p.min_size, max_size,
414 atomic_read(&ht->nelems) / tbl->size,
415 atomic_read(&ht->nelems) * 1000 / tbl->size,
416 ht->p.automatic_shrinking, 0,
417 atomic_read(&ht->nelems), maxdep);
420 for (i = 0; i < 8; i++)
421 seq_printf(m, "%d%c", dist[i], (i == 7) ? '\n' : '/');
425 lprocfs_exp_print_hash_seq(struct obd_export *exp, void *cb_data)
428 struct obd_device *obd = exp->exp_obd;
429 struct seq_file *m = cb_data;
431 if (exp->exp_lock_hash != NULL) {
432 seq_printf(m, "%-*s cur min max theta t-min t-max flags rehash count distribution\n",
433 HASH_NAME_LEN, "name");
434 ldebugfs_rhash_seq_show("NID_HASH", &obd->obd_nid_hash.ht, m);
439 static int lprocfs_exp_hash_seq_show(struct seq_file *m, void *data)
441 struct nid_stat *stats = m->private;
443 return obd_nid_export_for_each(stats->nid_obd, &stats->nid,
444 lprocfs_exp_print_hash_seq, m);
446 LPROC_SEQ_FOPS_RO(lprocfs_exp_hash);
448 static int lprocfs_exp_print_replydata_seq(struct obd_export *exp,
452 struct seq_file *m = cb_data;
453 struct tg_export_data *ted = &exp->exp_target_data;
455 seq_printf(m, "reply_cnt: %d\n"
457 "reply_released_by_xid: %d\n"
458 "reply_released_by_tag: %d\n\n",
461 ted->ted_release_xid,
462 ted->ted_release_tag);
466 static int lprocfs_exp_replydata_seq_show(struct seq_file *m, void *data)
468 struct nid_stat *stats = m->private;
470 return obd_nid_export_for_each(stats->nid_obd, &stats->nid,
471 lprocfs_exp_print_replydata_seq, m);
473 LPROC_SEQ_FOPS_RO(lprocfs_exp_replydata);
475 static int lprocfs_exp_print_fmd_count_seq(struct obd_export *exp,
478 struct seq_file *m = cb_data;
479 struct tg_export_data *ted = &exp->exp_target_data;
481 seq_printf(m, "%d\n", ted->ted_fmd_count);
486 static int lprocfs_exp_fmd_count_seq_show(struct seq_file *m, void *data)
488 struct nid_stat *stats = m->private;
490 return obd_nid_export_for_each(stats->nid_obd, &stats->nid,
491 lprocfs_exp_print_fmd_count_seq, m);
493 LPROC_SEQ_FOPS_RO(lprocfs_exp_fmd_count);
495 int lprocfs_nid_stats_clear_seq_show(struct seq_file *m, void *data)
497 seq_puts(m, "Write into this file to clear all nid stats and stale nid entries\n");
500 EXPORT_SYMBOL(lprocfs_nid_stats_clear_seq_show);
502 static int lprocfs_nid_stats_clear_write_cb(void *obj, void *data)
504 struct nid_stat *stat = obj;
507 CDEBUG(D_INFO, "refcnt %d\n", atomic_read(&stat->nid_exp_ref_count));
508 if (atomic_read(&stat->nid_exp_ref_count) == 1) {
509 /* object has only hash references. */
510 spin_lock(&stat->nid_obd->obd_nid_lock);
511 list_move(&stat->nid_list, data);
512 spin_unlock(&stat->nid_obd->obd_nid_lock);
515 /* we has reference to object - only clear data*/
517 lprocfs_stats_clear(stat->nid_stats);
523 lprocfs_nid_stats_clear_seq_write(struct file *file, const char __user *buffer,
524 size_t count, loff_t *off)
526 struct seq_file *m = file->private_data;
527 struct obd_device *obd = m->private;
528 struct nid_stat *client_stat;
529 LIST_HEAD(free_list);
531 cfs_hash_cond_del(obd->obd_nid_stats_hash,
532 lprocfs_nid_stats_clear_write_cb, &free_list);
534 while (!list_empty(&free_list)) {
535 client_stat = list_first_entry(&free_list, struct nid_stat,
537 list_del_init(&client_stat->nid_list);
538 lprocfs_free_client_stats(client_stat);
542 EXPORT_SYMBOL(lprocfs_nid_stats_clear_seq_write);
544 int lprocfs_exp_setup(struct obd_export *exp, struct lnet_nid *nid)
546 struct nid_stat *new_stat, *old_stat;
547 struct obd_device *obd = NULL;
548 struct proc_dir_entry *entry;
549 char nidstr[LNET_NIDSTR_SIZE];
553 if (!exp || !exp->exp_obd || !exp->exp_obd->obd_proc_exports_entry ||
554 !exp->exp_obd->obd_nid_stats_hash)
557 /* not test against zero because eric say:
558 * You may only test nid against another nid, or LNET_NID_ANY.
559 * Anything else is nonsense.*/
560 if (nid == NULL || LNET_NID_IS_ANY(nid))
563 libcfs_nidstr_r(nid, nidstr, sizeof(nidstr));
565 spin_lock(&exp->exp_lock);
566 if (exp->exp_nid_stats != NULL) {
567 spin_unlock(&exp->exp_lock);
570 spin_unlock(&exp->exp_lock);
574 CDEBUG(D_CONFIG, "using hash %p\n", obd->obd_nid_stats_hash);
576 OBD_ALLOC_PTR(new_stat);
577 if (new_stat == NULL)
580 new_stat->nid = *nid;
581 new_stat->nid_obd = exp->exp_obd;
582 /* we need set default refcount to 1 to balance obd_disconnect */
583 atomic_set(&new_stat->nid_exp_ref_count, 1);
585 old_stat = cfs_hash_findadd_unique(obd->obd_nid_stats_hash,
587 &new_stat->nid_hash);
588 CDEBUG(D_INFO, "Found stats %p for nid %s - ref %d\n",
589 old_stat, nidstr, atomic_read(&old_stat->nid_exp_ref_count));
591 /* Return -EALREADY here so that we know that the /proc
592 * entry already has been created */
593 if (old_stat != new_stat) {
594 spin_lock(&exp->exp_lock);
595 if (exp->exp_nid_stats) {
596 LASSERT(exp->exp_nid_stats == old_stat);
597 nidstat_putref(exp->exp_nid_stats);
599 exp->exp_nid_stats = old_stat;
600 spin_unlock(&exp->exp_lock);
601 GOTO(destroy_new, rc = -EALREADY);
603 /* not found - create */
604 new_stat->nid_proc = lprocfs_register(nidstr,
605 obd->obd_proc_exports_entry,
608 if (IS_ERR(new_stat->nid_proc)) {
609 rc = PTR_ERR(new_stat->nid_proc);
610 new_stat->nid_proc = NULL;
611 CERROR("%s: cannot create proc entry for export %s: rc = %d\n",
612 obd->obd_name, nidstr, rc);
613 GOTO(destroy_new_ns, rc);
616 entry = lprocfs_add_simple(new_stat->nid_proc, "nodemap", new_stat,
617 &lprocfs_exp_nodemap_fops);
620 CWARN("%s: error adding the nodemap file: rc = %d\n",
622 GOTO(destroy_new_ns, rc);
625 entry = lprocfs_add_simple(new_stat->nid_proc, "uuid", new_stat,
626 &lprocfs_exp_uuid_fops);
629 CWARN("%s: error adding the NID stats file: rc = %d\n",
631 GOTO(destroy_new_ns, rc);
634 entry = lprocfs_add_simple(new_stat->nid_proc, "hash", new_stat,
635 &lprocfs_exp_hash_fops);
638 CWARN("%s: error adding the hash file: rc = %d\n",
640 GOTO(destroy_new_ns, rc);
643 entry = lprocfs_add_simple(new_stat->nid_proc, "export",
644 new_stat, &lprocfs_exp_export_fops);
647 CWARN("%s: error adding the export file: rc = %d\n",
649 GOTO(destroy_new_ns, rc);
652 entry = lprocfs_add_simple(new_stat->nid_proc, "reply_data", new_stat,
653 &lprocfs_exp_replydata_fops);
656 CWARN("%s: error adding the reply_data file: rc = %d\n",
658 GOTO(destroy_new_ns, rc);
661 entry = lprocfs_add_simple(new_stat->nid_proc, "fmd_count", new_stat,
662 &lprocfs_exp_fmd_count_fops);
665 CWARN("%s: error adding the fmd_count file: rc = %d\n",
667 GOTO(destroy_new_ns, rc);
670 spin_lock(&exp->exp_lock);
671 exp->exp_nid_stats = new_stat;
672 spin_unlock(&exp->exp_lock);
674 /* protect competitive add to list, not need locking on destroy */
675 spin_lock(&obd->obd_nid_lock);
676 list_add(&new_stat->nid_list, &obd->obd_nid_stats);
677 spin_unlock(&obd->obd_nid_lock);
682 if (new_stat->nid_proc != NULL)
683 lprocfs_remove(&new_stat->nid_proc);
684 cfs_hash_del(obd->obd_nid_stats_hash, &new_stat->nid,
685 &new_stat->nid_hash);
688 nidstat_putref(new_stat);
689 OBD_FREE_PTR(new_stat);
692 EXPORT_SYMBOL(lprocfs_exp_setup);
694 int lprocfs_exp_cleanup(struct obd_export *exp)
696 struct nid_stat *stat = exp->exp_nid_stats;
698 if (!stat || !exp->exp_obd)
701 nidstat_putref(exp->exp_nid_stats);
702 exp->exp_nid_stats = NULL;
707 int lprocfs_alloc_obd_stats(struct obd_device *obd, unsigned int num_stats)
709 struct lprocfs_stats *stats;
712 LASSERT(obd->obd_stats == NULL);
713 LASSERT(obd->obd_proc_entry != NULL);
715 stats = lprocfs_stats_alloc(num_stats, 0);
719 rc = lprocfs_stats_register(obd->obd_proc_entry, "stats", stats);
721 lprocfs_stats_free(&stats);
723 obd->obd_stats = stats;
727 EXPORT_SYMBOL(lprocfs_alloc_obd_stats);
729 void lprocfs_free_obd_stats(struct obd_device *obd)
732 lprocfs_stats_free(&obd->obd_stats);
734 EXPORT_SYMBOL(lprocfs_free_obd_stats);
736 static void display_brw_stats(struct seq_file *seq, const char *name,
737 const char *units, struct obd_hist_pcpu *read,
738 struct obd_hist_pcpu *write, bool scale)
740 unsigned long read_tot, write_tot, r, w, read_cum = 0, write_cum = 0;
743 seq_printf(seq, "\n%26s read | write\n", " ");
744 seq_printf(seq, "%-22s %-5s %% cum %% | %-11s %% cum %%\n",
747 read_tot = lprocfs_oh_sum_pcpu(read);
748 write_tot = lprocfs_oh_sum_pcpu(write);
750 if (!read_tot && !write_tot)
753 for (i = 0; i < OBD_HIST_MAX; i++) {
754 r = lprocfs_oh_counter_pcpu(read, i);
755 w = lprocfs_oh_counter_pcpu(write, i);
758 if (read_cum == 0 && write_cum == 0)
762 seq_printf(seq, "%u", i);
764 seq_printf(seq, "%lu", BIT(i));
766 seq_printf(seq, "%luK", BIT(i - 10));
768 seq_printf(seq, "%luM", BIT(i - 20));
770 seq_printf(seq, ":\t\t%10lu %3u %3u | %4lu %3u %3u\n",
771 r, pct(r, read_tot), pct(read_cum, read_tot),
772 w, pct(w, write_tot), pct(write_cum, write_tot));
774 if (read_cum == read_tot && write_cum == write_tot)
779 static const struct brw_stats_props brw_props[] = {
780 { .bsp_name = "pages per bulk r/w",
783 { .bsp_name = "discontiguous pages",
785 .bsp_scale = false },
786 { .bsp_name = "discontiguous blocks",
788 .bsp_scale = false },
789 { .bsp_name = "disk fragmented I/Os",
791 .bsp_scale = false },
792 { .bsp_name = "disk I/Os in flight",
794 .bsp_scale = false },
795 { .bsp_name = "I/O time (1/1000s)",
798 { .bsp_name = "disk I/O size",
801 { .bsp_name = "block maps msec",
803 .bsp_scale = true, },
806 static int brw_stats_seq_show(struct seq_file *seq, void *v)
808 struct brw_stats *brw_stats = seq->private;
811 /* this sampling races with updates */
812 lprocfs_stats_header(seq, ktime_get_real(), brw_stats->bs_init, 25,
815 for (i = 0; i < ARRAY_SIZE(brw_stats->bs_props); i++) {
816 if (!brw_stats->bs_props[i].bsp_name)
819 display_brw_stats(seq, brw_stats->bs_props[i].bsp_name,
820 brw_stats->bs_props[i].bsp_units,
821 &brw_stats->bs_hist[i * 2],
822 &brw_stats->bs_hist[i * 2 + 1],
823 brw_stats->bs_props[i].bsp_scale);
829 static ssize_t brw_stats_seq_write(struct file *file,
830 const char __user *buf,
831 size_t len, loff_t *off)
833 struct seq_file *seq = file->private_data;
834 struct brw_stats *brw_stats = seq->private;
837 for (i = 0; i < BRW_RW_STATS_NUM; i++)
838 lprocfs_oh_clear_pcpu(&brw_stats->bs_hist[i]);
839 brw_stats->bs_init = ktime_get_real();
844 LDEBUGFS_SEQ_FOPS(brw_stats);
846 int lprocfs_init_brw_stats(struct brw_stats *brw_stats)
850 for (i = 0; i < BRW_RW_STATS_NUM; i++) {
851 result = lprocfs_oh_alloc_pcpu(&brw_stats->bs_hist[i]);
858 EXPORT_SYMBOL(lprocfs_init_brw_stats);
860 void lprocfs_fini_brw_stats(struct brw_stats *brw_stats)
864 for (i = 0; i < BRW_RW_STATS_NUM; i++)
865 lprocfs_oh_release_pcpu(&brw_stats->bs_hist[i]);
867 EXPORT_SYMBOL(lprocfs_fini_brw_stats);
869 void ldebugfs_register_osd_stats(struct dentry *parent,
870 struct brw_stats *brw_stats,
871 struct lprocfs_stats *stats)
876 brw_stats->bs_init = ktime_get_real();
877 for (i = 0; i < BRW_RW_STATS_NUM; i++) {
878 struct brw_stats_props *props = brw_stats->bs_props;
881 props[i / 2].bsp_name = brw_props[i / 2].bsp_name;
882 props[i / 2].bsp_units = brw_props[i / 2].bsp_units;
883 props[i / 2].bsp_scale = brw_props[i / 2].bsp_scale;
890 debugfs_create_file("brw_stats", 0644, parent, brw_stats,
894 debugfs_create_file("stats", 0644, parent, stats,
895 &ldebugfs_stats_seq_fops);
897 EXPORT_SYMBOL(ldebugfs_register_osd_stats);
899 int lprocfs_hash_seq_show(struct seq_file *m, void *data)
901 struct obd_device *obd = m->private;
906 /* header for rhashtable state */
907 seq_printf(m, "%-*s cur min max theta t-min t-max flags rehash count maxdep distribution\n",
908 HASH_NAME_LEN, "name");
909 ldebugfs_rhash_seq_show("UUID_HASH", &obd->obd_uuid_hash, m);
910 ldebugfs_rhash_seq_show("NID_HASH", &obd->obd_nid_hash.ht, m);
912 cfs_hash_debug_header(m);
913 cfs_hash_debug_str(obd->obd_nid_stats_hash, m);
916 EXPORT_SYMBOL(lprocfs_hash_seq_show);
918 int lprocfs_recovery_status_seq_show(struct seq_file *m, void *data)
920 struct obd_device *obd = m->private;
921 struct target_distribute_txn_data *tdtd;
923 LASSERT(obd != NULL);
925 seq_printf(m, "status: ");
926 if (atomic_read(&obd->obd_max_recoverable_clients) == 0) {
927 seq_printf(m, "INACTIVE\n");
931 /* There is gap between client data read from storage and setting
932 * obd_recovering so check obd_recovery_end as well to make sure
933 * recovery is really finished
935 if (obd->obd_recovery_end > 0 && !obd->obd_recovering) {
936 seq_printf(m, "COMPLETE\n");
937 seq_printf(m, "recovery_start: %lld\n",
938 (s64)ktime_get_real_seconds() -
939 (ktime_get_seconds() - obd->obd_recovery_start));
940 seq_printf(m, "recovery_duration: %lld\n",
941 obd->obd_recovery_end ?
942 obd->obd_recovery_end - obd->obd_recovery_start :
943 ktime_get_seconds() - obd->obd_recovery_start);
944 /* Number of clients that have completed recovery */
945 seq_printf(m, "completed_clients: %d/%d\n",
946 atomic_read(&obd->obd_max_recoverable_clients) -
947 obd->obd_stale_clients,
948 atomic_read(&obd->obd_max_recoverable_clients));
949 seq_printf(m, "replayed_requests: %d\n",
950 obd->obd_replayed_requests);
951 seq_printf(m, "last_transno: %lld\n",
952 obd->obd_next_recovery_transno - 1);
953 seq_printf(m, "VBR: %s\n", obd->obd_version_recov ?
954 "ENABLED" : "DISABLED");
955 seq_printf(m, "IR: %s\n", obd->obd_no_ir ?
956 "DISABLED" : "ENABLED");
960 tdtd = obd2obt(obd)->obt_lut->lut_tdtd;
961 if (tdtd && tdtd->tdtd_show_update_logs_retrievers) {
966 buf = tdtd->tdtd_show_update_logs_retrievers(
967 tdtd->tdtd_show_retrievers_cbdata,
970 seq_printf(m, "WAITING\n");
971 seq_printf(m, "non-ready MDTs: %s\n",
972 buf ? buf : "unknown (not enough RAM)");
973 seq_printf(m, "recovery_start: %lld\n",
974 (s64)ktime_get_real_seconds() -
975 (ktime_get_seconds() -
976 obd->obd_recovery_start));
977 seq_printf(m, "time_waited: %lld\n",
978 (s64)(ktime_get_seconds() -
979 obd->obd_recovery_start));
984 if (likely(count > 0))
988 /* recovery won't start until the clients connect */
989 if (obd->obd_recovery_start == 0) {
990 seq_printf(m, "WAITING_FOR_CLIENTS\n");
994 seq_printf(m, "RECOVERING\n");
995 seq_printf(m, "recovery_start: %lld\n", (s64)ktime_get_real_seconds() -
996 (ktime_get_seconds() - obd->obd_recovery_start));
997 seq_printf(m, "time_remaining: %lld\n",
998 ktime_get_seconds() >=
999 obd->obd_recovery_start +
1000 obd->obd_recovery_timeout ? 0 :
1001 (s64)(obd->obd_recovery_start +
1002 obd->obd_recovery_timeout -
1003 ktime_get_seconds()));
1004 seq_printf(m, "connected_clients: %d/%d\n",
1005 atomic_read(&obd->obd_connected_clients),
1006 atomic_read(&obd->obd_max_recoverable_clients));
1007 /* Number of clients that have completed recovery */
1008 seq_printf(m, "req_replay_clients: %d\n",
1009 atomic_read(&obd->obd_req_replay_clients));
1010 seq_printf(m, "lock_repay_clients: %d\n",
1011 atomic_read(&obd->obd_lock_replay_clients));
1012 seq_printf(m, "completed_clients: %d\n",
1013 atomic_read(&obd->obd_connected_clients) -
1014 atomic_read(&obd->obd_lock_replay_clients));
1015 seq_printf(m, "evicted_clients: %d\n", obd->obd_stale_clients);
1016 seq_printf(m, "replayed_requests: %d\n", obd->obd_replayed_requests);
1017 seq_printf(m, "queued_requests: %d\n",
1018 obd->obd_requests_queued_for_recovery);
1019 seq_printf(m, "next_transno: %lld\n",
1020 obd->obd_next_recovery_transno);
1024 EXPORT_SYMBOL(lprocfs_recovery_status_seq_show);
1026 ssize_t ir_factor_show(struct kobject *kobj, struct attribute *attr,
1029 struct obd_device *obd = container_of(kobj, struct obd_device,
1032 return scnprintf(buf, PAGE_SIZE, "%d\n", obd->obd_recovery_ir_factor);
1034 EXPORT_SYMBOL(ir_factor_show);
1036 ssize_t ir_factor_store(struct kobject *kobj, struct attribute *attr,
1037 const char *buffer, size_t count)
1039 struct obd_device *obd = container_of(kobj, struct obd_device,
1044 rc = kstrtoint(buffer, 10, &val);
1048 if (val < OBD_IR_FACTOR_MIN || val > OBD_IR_FACTOR_MAX)
1051 obd->obd_recovery_ir_factor = val;
1054 EXPORT_SYMBOL(ir_factor_store);
1056 int lprocfs_checksum_dump_seq_show(struct seq_file *m, void *data)
1058 struct obd_device *obd = m->private;
1060 LASSERT(obd != NULL);
1061 seq_printf(m, "%d\n", obd->obd_checksum_dump);
1064 EXPORT_SYMBOL(lprocfs_checksum_dump_seq_show);
1067 lprocfs_checksum_dump_seq_write(struct file *file, const char __user *buffer,
1068 size_t count, loff_t *off)
1070 struct seq_file *m = file->private_data;
1071 struct obd_device *obd = m->private;
1075 LASSERT(obd != NULL);
1076 rc = kstrtobool_from_user(buffer, count, &val);
1080 obd->obd_checksum_dump = val;
1083 EXPORT_SYMBOL(lprocfs_checksum_dump_seq_write);
1085 ssize_t recovery_time_soft_show(struct kobject *kobj, struct attribute *attr,
1088 struct obd_device *obd = container_of(kobj, struct obd_device,
1091 return scnprintf(buf, PAGE_SIZE, "%d\n", obd->obd_recovery_timeout);
1093 EXPORT_SYMBOL(recovery_time_soft_show);
1095 ssize_t recovery_time_soft_store(struct kobject *kobj,
1096 struct attribute *attr,
1097 const char *buffer, size_t count)
1099 struct obd_device *obd = container_of(kobj, struct obd_device,
1104 rc = kstrtouint(buffer, 0, &val);
1108 obd->obd_recovery_timeout = val;
1111 EXPORT_SYMBOL(recovery_time_soft_store);
1113 ssize_t recovery_time_hard_show(struct kobject *kobj, struct attribute *attr,
1116 struct obd_device *obd = container_of(kobj, struct obd_device,
1119 return scnprintf(buf, PAGE_SIZE, "%d\n", obd->obd_recovery_time_hard);
1121 EXPORT_SYMBOL(recovery_time_hard_show);
1123 ssize_t recovery_time_hard_store(struct kobject *kobj,
1124 struct attribute *attr,
1125 const char *buffer, size_t count)
1127 struct obd_device *obd = container_of(kobj, struct obd_device,
1132 rc = kstrtouint(buffer, 0, &val);
1136 obd->obd_recovery_time_hard = val;
1139 EXPORT_SYMBOL(recovery_time_hard_store);
1141 ssize_t instance_show(struct kobject *kobj, struct attribute *attr,
1144 struct obd_device *obd = container_of(kobj, struct obd_device,
1146 struct obd_device_target *target = obd2obt(obd);
1148 LASSERT(target->obt_magic == OBT_MAGIC);
1149 return scnprintf(buf, PAGE_SIZE, "%u\n", obd2obt(obd)->obt_instance);
1151 EXPORT_SYMBOL(instance_show);
1153 #endif /* CONFIG_PROC_FS*/