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) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2012, 2014 Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/ofd/lproc_ofd.c
34 * This file provides functions of procfs interface for OBD Filter Device (OFD).
36 * Author: Andreas Dilger <andreas.dilger@intel.com>
37 * Author: Mikhail Pershin <mike.pershin@intel.com>
38 * Author: Johann Lombardi <johann.lombardi@intel.com>
39 * Author: Fan Yong <fan.yong@intel.com>
42 #define DEBUG_SUBSYSTEM S_CLASS
45 #include <lprocfs_status.h>
46 #include <linux/seq_file.h>
47 #include <lustre_lfsck.h>
49 #include "ofd_internal.h"
54 * Show number of FID allocation sequences.
56 * \param[in] m seq_file handle
57 * \param[in] data unused for single entry
59 * \retval 0 on success
60 * \retval negative value on error
62 static int ofd_seqs_seq_show(struct seq_file *m, void *data)
64 struct obd_device *obd = m->private;
65 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
67 return seq_printf(m, "%u\n", ofd->ofd_seq_count);
69 LPROC_SEQ_FOPS_RO(ofd_seqs);
72 * Show estimate of total amount of dirty data on clients.
74 * \param[in] m seq_file handle
75 * \param[in] data unused for single entry
77 * \retval 0 on success
78 * \retval negative value on error
80 static int ofd_tot_dirty_seq_show(struct seq_file *m, void *data)
82 struct obd_device *obd = m->private;
83 struct ofd_device *ofd;
86 ofd = ofd_dev(obd->obd_lu_dev);
87 return seq_printf(m, LPU64"\n", ofd->ofd_tot_dirty);
89 LPROC_SEQ_FOPS_RO(ofd_tot_dirty);
92 * Show total amount of space granted to clients.
94 * \param[in] m seq_file handle
95 * \param[in] data unused for single entry
97 * \retval 0 on success
98 * \retval negative value on error
100 static int ofd_tot_granted_seq_show(struct seq_file *m, void *data)
102 struct obd_device *obd = m->private;
103 struct ofd_device *ofd;
105 LASSERT(obd != NULL);
106 ofd = ofd_dev(obd->obd_lu_dev);
107 return seq_printf(m, LPU64"\n", ofd->ofd_tot_granted);
109 LPROC_SEQ_FOPS_RO(ofd_tot_granted);
112 * Show total amount of space used by IO in progress.
114 * \param[in] m seq_file handle
115 * \param[in] data unused for single entry
117 * \retval 0 on success
118 * \retval negative value on error
120 static int ofd_tot_pending_seq_show(struct seq_file *m, void *data)
122 struct obd_device *obd = m->private;
123 struct ofd_device *ofd;
125 LASSERT(obd != NULL);
126 ofd = ofd_dev(obd->obd_lu_dev);
127 return seq_printf(m, LPU64"\n", ofd->ofd_tot_pending);
129 LPROC_SEQ_FOPS_RO(ofd_tot_pending);
132 * Show total number of grants for precreate.
134 * \param[in] m seq_file handle
135 * \param[in] data unused for single entry
137 * \retval 0 on success
138 * \retval negative value on error
140 static int ofd_grant_precreate_seq_show(struct seq_file *m, void *data)
142 struct obd_device *obd = m->private;
144 LASSERT(obd != NULL);
145 return seq_printf(m, "%ld\n",
146 obd->obd_self_export->exp_filter_data.fed_grant);
148 LPROC_SEQ_FOPS_RO(ofd_grant_precreate);
151 * Show total amount of free space reserved for grants.
153 * \param[in] m seq_file handle
154 * \param[in] data unused for single entry
156 * \retval 0 on success
157 * \retval negative value on error
159 static int ofd_grant_ratio_seq_show(struct seq_file *m, void *data)
161 struct obd_device *obd = m->private;
162 struct ofd_device *ofd;
164 LASSERT(obd != NULL);
165 ofd = ofd_dev(obd->obd_lu_dev);
166 return seq_printf(m, "%d%%\n",
167 (int) ofd_grant_reserved(ofd, 100));
171 * Change amount of free space reserved for grants.
173 * \param[in] file proc file
174 * \param[in] buffer string which represents maximum number
175 * \param[in] count \a buffer length
176 * \param[in] off unused for single entry
178 * \retval \a count on success
179 * \retval negative number on error
182 ofd_grant_ratio_seq_write(struct file *file, const char __user *buffer,
183 size_t count, loff_t *off)
185 struct seq_file *m = file->private_data;
186 struct obd_device *obd = m->private;
187 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
191 rc = lprocfs_write_helper(buffer, count, &val);
195 if (val > 100 || val < 0)
199 CWARN("%s: disabling grant error margin\n", obd->obd_name);
201 CWARN("%s: setting grant error margin >50%%, be warned that "
202 "a huge part of the free space is now reserved for "
203 "grants\n", obd->obd_name);
205 spin_lock(&ofd->ofd_grant_lock);
206 ofd->ofd_grant_ratio = ofd_grant_ratio_conv(val);
207 spin_unlock(&ofd->ofd_grant_lock);
210 LPROC_SEQ_FOPS(ofd_grant_ratio);
213 * Show number of precreates allowed in a single transaction.
215 * \param[in] m seq_file handle
216 * \param[in] data unused for single entry
218 * \retval 0 on success
219 * \retval negative value on error
221 static int ofd_precreate_batch_seq_show(struct seq_file *m, void *data)
223 struct obd_device *obd = m->private;
224 struct ofd_device *ofd;
226 LASSERT(obd != NULL);
227 ofd = ofd_dev(obd->obd_lu_dev);
228 return seq_printf(m, "%d\n", ofd->ofd_precreate_batch);
232 * Change number of precreates allowed in a single transaction.
234 * \param[in] file proc file
235 * \param[in] buffer string which represents maximum number
236 * \param[in] count \a buffer length
237 * \param[in] off unused for single entry
239 * \retval \a count on success
240 * \retval negative number on error
243 ofd_precreate_batch_seq_write(struct file *file, const char __user *buffer,
244 size_t count, loff_t *off)
246 struct seq_file *m = file->private_data;
247 struct obd_device *obd = m->private;
248 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
252 rc = lprocfs_write_helper(buffer, count, &val);
259 spin_lock(&ofd->ofd_batch_lock);
260 ofd->ofd_precreate_batch = val;
261 spin_unlock(&ofd->ofd_batch_lock);
264 LPROC_SEQ_FOPS(ofd_precreate_batch);
267 * Show the last used ID for each FID sequence used by OFD.
269 * \param[in] m seq_file handle
270 * \param[in] data unused for single entry
272 * \retval 0 on success
273 * \retval negative value on error
275 static int ofd_last_id_seq_show(struct seq_file *m, void *data)
277 struct obd_device *obd = m->private;
278 struct ofd_device *ofd;
279 struct ofd_seq *oseq = NULL;
285 ofd = ofd_dev(obd->obd_lu_dev);
287 read_lock(&ofd->ofd_seq_list_lock);
288 list_for_each_entry(oseq, &ofd->ofd_seq_list, os_list) {
291 seq = ostid_seq(&oseq->os_oi) == 0 ?
292 fid_idif_seq(ostid_id(&oseq->os_oi),
293 ofd->ofd_lut.lut_lsd.lsd_osd_index) :
294 ostid_seq(&oseq->os_oi);
295 rc = seq_printf(m, DOSTID"\n", seq, ostid_id(&oseq->os_oi));
302 read_unlock(&ofd->ofd_seq_list_lock);
305 LPROC_SEQ_FOPS_RO(ofd_last_id);
308 * Show maximum number of Filter Modification Data (FMD) maintained by OFD.
310 * \param[in] m seq_file handle
311 * \param[in] data unused for single entry
313 * \retval 0 on success
314 * \retval negative value on error
316 static int ofd_fmd_max_num_seq_show(struct seq_file *m, void *data)
318 struct obd_device *obd = m->private;
319 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
321 return seq_printf(m, "%u\n", ofd->ofd_fmd_max_num);
325 * Change number of FMDs maintained by OFD.
327 * This defines how large the list of FMDs can be.
329 * \param[in] file proc file
330 * \param[in] buffer string which represents maximum number
331 * \param[in] count \a buffer length
332 * \param[in] off unused for single entry
334 * \retval \a count on success
335 * \retval negative number on error
338 ofd_fmd_max_num_seq_write(struct file *file, const char __user *buffer,
339 size_t count, loff_t *off)
341 struct seq_file *m = file->private_data;
342 struct obd_device *obd = m->private;
343 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
347 rc = lprocfs_write_helper(buffer, count, &val);
351 if (val > 65536 || val < 1)
354 ofd->ofd_fmd_max_num = val;
357 LPROC_SEQ_FOPS(ofd_fmd_max_num);
360 * Show the maximum age of FMD data in seconds.
362 * Though it is shown in seconds, it is stored internally in units
363 * of jiffies for efficiency.
365 * \param[in] m seq_file handle
366 * \param[in] data unused for single entry
368 * \retval 0 on success
369 * \retval negative value on error
371 static int ofd_fmd_max_age_seq_show(struct seq_file *m, void *data)
373 struct obd_device *obd = m->private;
374 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
376 return seq_printf(m, "%ld\n", jiffies_to_msecs(ofd->ofd_fmd_max_age) /
381 * Set the maximum age of FMD data in seconds.
383 * This defines how long FMD data stays in the FMD list.
384 * It is stored internally in units of jiffies for efficiency.
386 * \param[in] file proc file
387 * \param[in] buffer string which represents maximum number
388 * \param[in] count \a buffer length
389 * \param[in] off unused for single entry
391 * \retval \a count on success
392 * \retval negative number on error
395 ofd_fmd_max_age_seq_write(struct file *file, const char __user *buffer,
396 size_t count, loff_t *off)
398 struct seq_file *m = file->private_data;
399 struct obd_device *obd = m->private;
400 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
404 rc = lprocfs_write_helper(buffer, count, &val);
408 if (val > 65536 || val < 1)
411 ofd->ofd_fmd_max_age = msecs_to_jiffies(val * MSEC_PER_SEC);
414 LPROC_SEQ_FOPS(ofd_fmd_max_age);
417 * Show if the OFD is in degraded mode.
419 * Degraded means OFD has a failed drive or is undergoing RAID rebuild.
420 * The MDS will try to avoid using this OST for new object allocations
421 * to reduce the impact to global IO performance when clients writing to
422 * this OST are slowed down. It also reduces the contention on the OST
423 * RAID device, allowing it to rebuild more quickly.
425 * \param[in] m seq_file handle
426 * \param[in] data unused for single entry
428 * \retval 0 on success
429 * \retval negative value on error
431 static int ofd_degraded_seq_show(struct seq_file *m, void *data)
433 struct obd_device *obd = m->private;
434 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
436 return seq_printf(m, "%u\n", ofd->ofd_raid_degraded);
440 * Set OFD to degraded mode.
442 * This is used to interface to userspace administrative tools for
443 * the underlying RAID storage, so that they can mark an OST
444 * as having degraded performance.
446 * \param[in] file proc file
447 * \param[in] buffer string which represents mode
448 * 1: set degraded mode
449 * 0: unset degraded mode
450 * \param[in] count \a buffer length
451 * \param[in] off unused for single entry
453 * \retval \a count on success
454 * \retval negative number on error
457 ofd_degraded_seq_write(struct file *file, const char __user *buffer,
458 size_t count, loff_t *off)
460 struct seq_file *m = file->private_data;
461 struct obd_device *obd = m->private;
462 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
465 rc = lprocfs_write_helper(buffer, count, &val);
469 spin_lock(&ofd->ofd_flags_lock);
470 ofd->ofd_raid_degraded = !!val;
471 spin_unlock(&ofd->ofd_flags_lock);
474 LPROC_SEQ_FOPS(ofd_degraded);
477 * Show OFD filesystem type.
479 * \param[in] m seq_file handle
480 * \param[in] data unused for single entry
482 * \retval 0 on success
483 * \retval negative value on error
485 static int ofd_fstype_seq_show(struct seq_file *m, void *data)
487 struct obd_device *obd = m->private;
488 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
491 LASSERT(ofd->ofd_osd);
492 d = &ofd->ofd_osd->dd_lu_dev;
494 return seq_printf(m, "%s\n", d->ld_type->ldt_name);
496 LPROC_SEQ_FOPS_RO(ofd_fstype);
499 * Show journal handling mode: synchronous or asynchronous.
501 * When running in asynchronous mode the journal transactions are not
502 * committed to disk before the RPC is replied back to the client.
503 * This will typically improve client performance when only a small number
504 * of clients are writing, since the client(s) can have more write RPCs
505 * in flight. However, it also means that the client has to handle recovery
506 * on bulk RPCs, and will have to keep more dirty pages in cache before they
507 * are committed on the OST.
509 * \param[in] m seq_file handle
510 * \param[in] data unused for single entry
512 * \retval 0 on success
513 * \retval negative value on error
515 static int ofd_syncjournal_seq_show(struct seq_file *m, void *data)
517 struct obd_device *obd = m->private;
518 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
520 return seq_printf(m, "%u\n", ofd->ofd_syncjournal);
524 * Set journal mode to synchronous or asynchronous.
526 * \param[in] file proc file
527 * \param[in] buffer string which represents mode
528 * 1: synchronous mode
529 * 0: asynchronous mode
530 * \param[in] count \a buffer length
531 * \param[in] off unused for single entry
533 * \retval \a count on success
534 * \retval negative number on error
537 ofd_syncjournal_seq_write(struct file *file, const char __user *buffer,
538 size_t count, loff_t *off)
540 struct seq_file *m = file->private_data;
541 struct obd_device *obd = m->private;
542 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
546 rc = lprocfs_write_helper(buffer, count, &val);
553 spin_lock(&ofd->ofd_flags_lock);
554 ofd->ofd_syncjournal = !!val;
556 spin_unlock(&ofd->ofd_flags_lock);
560 LPROC_SEQ_FOPS(ofd_syncjournal);
562 /* This must be longer than the longest string below */
563 #define SYNC_STATES_MAXLEN 16
564 static char *sync_on_cancel_states[] = {"never",
569 * Show OFD policy for handling dirty data under a lock being cancelled.
571 * \param[in] m seq_file handle
572 * \param[in] data unused for single entry
574 * \retval 0 on success
575 * \retval negative value on error
577 static int ofd_sync_lock_cancel_seq_show(struct seq_file *m, void *data)
579 struct obd_device *obd = m->private;
580 struct lu_target *tgt = obd->u.obt.obt_lut;
582 return seq_printf(m, "%s\n",
583 sync_on_cancel_states[tgt->lut_sync_lock_cancel]);
587 * Change OFD policy for handling dirty data under a lock being cancelled.
589 * This variable defines what action OFD takes upon lock cancel
590 * There are three possible modes:
591 * 1) never - never do sync upon lock cancel. This can lead to data
592 * inconsistencies if both the OST and client crash while writing a file
593 * that is also concurrently being read by another client. In these cases,
594 * this may allow the file data to "rewind" to an earlier state.
595 * 2) blocking - do sync only if there is blocking lock, e.g. if another
596 * client is trying to access this same object
597 * 3) always - do sync always
599 * \param[in] file proc file
600 * \param[in] buffer string which represents policy
601 * \param[in] count \a buffer length
602 * \param[in] off unused for single entry
604 * \retval \a count on success
605 * \retval negative number on error
608 ofd_sync_lock_cancel_seq_write(struct file *file, const char __user *buffer,
609 size_t count, loff_t *off)
611 struct seq_file *m = file->private_data;
612 struct obd_device *obd = m->private;
613 struct lu_target *tgt = obd->u.obt.obt_lut;
614 char kernbuf[SYNC_STATES_MAXLEN];
618 if (count == 0 || count >= sizeof(kernbuf))
621 if (copy_from_user(kernbuf, buffer, count))
625 if (kernbuf[count - 1] == '\n')
626 kernbuf[count - 1] = 0;
628 for (i = 0 ; i < NUM_SYNC_ON_CANCEL_STATES; i++) {
629 if (strcmp(kernbuf, sync_on_cancel_states[i]) == 0) {
635 /* Legacy numeric codes */
639 /* Safe to use userspace buffer as lprocfs_write_helper will
640 * use copy from user for parsing */
641 rc = lprocfs_write_helper(buffer, count, &val);
646 if (val < 0 || val > 2)
649 spin_lock(&tgt->lut_flags_lock);
650 tgt->lut_sync_lock_cancel = val;
651 spin_unlock(&tgt->lut_flags_lock);
654 LPROC_SEQ_FOPS(ofd_sync_lock_cancel);
657 * Show if grants compatibility mode is disabled.
659 * When ofd_grant_compat_disable is set, we don't grant any space to clients
660 * not supporting OBD_CONNECT_GRANT_PARAM. Otherwise, space granted to such
661 * a client is inflated since it consumes PAGE_CACHE_SIZE of grant space per
662 * block, (i.e. typically 4kB units), but underlaying file system might have
663 * block size bigger than page size, e.g. ZFS. See LU-2049 for details.
665 * \param[in] m seq_file handle
666 * \param[in] data unused for single entry
668 * \retval 0 on success
669 * \retval negative value on error
671 static int ofd_grant_compat_disable_seq_show(struct seq_file *m, void *data)
673 struct obd_device *obd = m->private;
674 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
676 return seq_printf(m, "%u\n", ofd->ofd_grant_compat_disable);
680 * Change grant compatibility mode.
682 * Setting ofd_grant_compat_disable prohibit any space granting to clients
683 * not supporting OBD_CONNECT_GRANT_PARAM. See details above.
685 * \param[in] file proc file
686 * \param[in] buffer string which represents mode
687 * 1: disable compatibility mode
688 * 0: enable compatibility mode
689 * \param[in] count \a buffer length
690 * \param[in] off unused for single entry
692 * \retval \a count on success
693 * \retval negative number on error
696 ofd_grant_compat_disable_seq_write(struct file *file,
697 const char __user *buffer,
698 size_t count, loff_t *off)
700 struct seq_file *m = file->private_data;
701 struct obd_device *obd = m->private;
702 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
706 rc = lprocfs_write_helper(buffer, count, &val);
713 spin_lock(&ofd->ofd_flags_lock);
714 ofd->ofd_grant_compat_disable = !!val;
715 spin_unlock(&ofd->ofd_flags_lock);
719 LPROC_SEQ_FOPS(ofd_grant_compat_disable);
722 * Show the limit of soft sync RPCs.
724 * This value defines how many IO RPCs with OBD_BRW_SOFT_SYNC flag
725 * are allowed before sync update will be triggered.
727 * \param[in] m seq_file handle
728 * \param[in] data unused for single entry
730 * \retval 0 on success
731 * \retval negative value on error
733 static int ofd_soft_sync_limit_seq_show(struct seq_file *m, void *data)
735 struct obd_device *obd = m->private;
736 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
738 return lprocfs_uint_seq_show(m, &ofd->ofd_soft_sync_limit);
742 * Change the limit of soft sync RPCs.
744 * Define how many IO RPCs with OBD_BRW_SOFT_SYNC flag
745 * allowed before sync update will be done.
747 * This limit is global across all exports.
749 * \param[in] file proc file
750 * \param[in] buffer string which represents limit
751 * \param[in] count \a buffer length
752 * \param[in] off unused for single entry
754 * \retval \a count on success
755 * \retval negative number on error
758 ofd_soft_sync_limit_seq_write(struct file *file, const char __user *buffer,
759 size_t count, loff_t *off)
761 struct seq_file *m = file->private_data;
762 struct obd_device *obd = m->private;
763 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
765 return lprocfs_uint_seq_write(file, buffer, count,
766 (loff_t *) &ofd->ofd_soft_sync_limit);
768 LPROC_SEQ_FOPS(ofd_soft_sync_limit);
771 * Show the LFSCK speed limit.
773 * The maximum number of items scanned per second.
775 * \param[in] m seq_file handle
776 * \param[in] data unused for single entry
778 * \retval 0 on success
779 * \retval negative value on error
781 static int ofd_lfsck_speed_limit_seq_show(struct seq_file *m, void *data)
783 struct obd_device *obd = m->private;
784 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
786 return lfsck_get_speed(m, ofd->ofd_osd);
790 * Change the LFSCK speed limit.
792 * Limit number of items that may be scanned per second.
794 * \param[in] file proc file
795 * \param[in] buffer string which represents limit
796 * \param[in] count \a buffer length
797 * \param[in] off unused for single entry
799 * \retval \a count on success
800 * \retval negative number on error
803 ofd_lfsck_speed_limit_seq_write(struct file *file, const char __user *buffer,
804 size_t count, loff_t *off)
806 struct seq_file *m = file->private_data;
807 struct obd_device *obd = m->private;
808 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
812 rc = lprocfs_write_helper(buffer, count, &val);
816 rc = lfsck_set_speed(ofd->ofd_osd, val);
818 return rc != 0 ? rc : count;
820 LPROC_SEQ_FOPS(ofd_lfsck_speed_limit);
823 * Show LFSCK layout verification stats from the most recent LFSCK run.
825 * \param[in] m seq_file handle
826 * \param[in] data unused for single entry
828 * \retval 0 on success
829 * \retval negative value on error
831 static int ofd_lfsck_layout_seq_show(struct seq_file *m, void *data)
833 struct obd_device *obd = m->private;
834 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
836 return lfsck_dump(m, ofd->ofd_osd, LFSCK_TYPE_LAYOUT);
838 LPROC_SEQ_FOPS_RO(ofd_lfsck_layout);
841 * Show if LFSCK performed parent FID verification.
843 * \param[in] m seq_file handle
844 * \param[in] data unused for single entry
846 * \retval 0 on success
847 * \retval negative value on error
849 static int ofd_lfsck_verify_pfid_seq_show(struct seq_file *m, void *data)
851 struct obd_device *obd = m->private;
852 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
855 "switch: %s\ndetected: "LPU64"\nrepaired: "LPU64"\n",
856 ofd->ofd_lfsck_verify_pfid ? "on" : "off",
857 ofd->ofd_inconsistency_self_detected,
858 ofd->ofd_inconsistency_self_repaired);
862 * Set the LFSCK behavior to verify parent FID correctness.
864 * If flag ofd_lfsck_verify_pfid is set then LFSCK does parent FID
865 * verification during read/write operations.
867 * \param[in] file proc file
868 * \param[in] buffer string which represents behavior
869 * 1: verify parent FID
870 * 0: don't verify parent FID
871 * \param[in] count \a buffer length
872 * \param[in] off unused for single entry
874 * \retval \a count on success
875 * \retval negative number on error
878 ofd_lfsck_verify_pfid_seq_write(struct file *file, const char __user *buffer,
879 size_t count, loff_t *off)
881 struct seq_file *m = file->private_data;
882 struct obd_device *obd = m->private;
883 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
887 rc = lprocfs_write_helper(buffer, count, &val);
891 ofd->ofd_lfsck_verify_pfid = !!val;
895 LPROC_SEQ_FOPS(ofd_lfsck_verify_pfid);
897 LPROC_SEQ_FOPS_RO_TYPE(ofd, uuid);
898 LPROC_SEQ_FOPS_RO_TYPE(ofd, blksize);
899 LPROC_SEQ_FOPS_RO_TYPE(ofd, kbytestotal);
900 LPROC_SEQ_FOPS_RO_TYPE(ofd, kbytesfree);
901 LPROC_SEQ_FOPS_RO_TYPE(ofd, kbytesavail);
902 LPROC_SEQ_FOPS_RO_TYPE(ofd, filestotal);
903 LPROC_SEQ_FOPS_RO_TYPE(ofd, filesfree);
905 LPROC_SEQ_FOPS_RO_TYPE(ofd, recovery_status);
906 LPROC_SEQ_FOPS_RW_TYPE(ofd, recovery_time_soft);
907 LPROC_SEQ_FOPS_RW_TYPE(ofd, recovery_time_hard);
908 LPROC_SEQ_FOPS_WO_TYPE(ofd, evict_client);
909 LPROC_SEQ_FOPS_RO_TYPE(ofd, num_exports);
910 LPROC_SEQ_FOPS_RO_TYPE(ofd, target_instance);
911 LPROC_SEQ_FOPS_RW_TYPE(ofd, ir_factor);
912 LPROC_SEQ_FOPS_RW_TYPE(ofd, job_interval);
914 struct lprocfs_vars lprocfs_ofd_obd_vars[] = {
916 .fops = &ofd_uuid_fops },
917 { .name = "blocksize",
918 .fops = &ofd_blksize_fops },
919 { .name = "kbytestotal",
920 .fops = &ofd_kbytestotal_fops },
921 { .name = "kbytesfree",
922 .fops = &ofd_kbytesfree_fops },
923 { .name = "kbytesavail",
924 .fops = &ofd_kbytesavail_fops },
925 { .name = "filestotal",
926 .fops = &ofd_filestotal_fops },
927 { .name = "filesfree",
928 .fops = &ofd_filesfree_fops },
929 { .name = "seqs_allocated",
930 .fops = &ofd_seqs_fops },
932 .fops = &ofd_fstype_fops },
934 .fops = &ofd_last_id_fops },
935 { .name = "tot_dirty",
936 .fops = &ofd_tot_dirty_fops },
937 { .name = "tot_pending",
938 .fops = &ofd_tot_pending_fops },
939 { .name = "tot_granted",
940 .fops = &ofd_tot_granted_fops },
941 { .name = "grant_precreate",
942 .fops = &ofd_grant_precreate_fops },
943 { .name = "grant_ratio",
944 .fops = &ofd_grant_ratio_fops },
945 { .name = "precreate_batch",
946 .fops = &ofd_precreate_batch_fops },
947 { .name = "recovery_status",
948 .fops = &ofd_recovery_status_fops },
949 { .name = "recovery_time_soft",
950 .fops = &ofd_recovery_time_soft_fops },
951 { .name = "recovery_time_hard",
952 .fops = &ofd_recovery_time_hard_fops },
953 { .name = "evict_client",
954 .fops = &ofd_evict_client_fops },
955 { .name = "num_exports",
956 .fops = &ofd_num_exports_fops },
957 { .name = "degraded",
958 .fops = &ofd_degraded_fops },
959 { .name = "sync_journal",
960 .fops = &ofd_syncjournal_fops },
961 { .name = "sync_on_lock_cancel",
962 .fops = &ofd_sync_lock_cancel_fops },
963 { .name = "instance",
964 .fops = &ofd_target_instance_fops },
965 { .name = "ir_factor",
966 .fops = &ofd_ir_factor_fops },
967 { .name = "grant_compat_disable",
968 .fops = &ofd_grant_compat_disable_fops },
969 { .name = "client_cache_count",
970 .fops = &ofd_fmd_max_num_fops },
971 { .name = "client_cache_seconds",
972 .fops = &ofd_fmd_max_age_fops },
973 { .name = "job_cleanup_interval",
974 .fops = &ofd_job_interval_fops },
975 { .name = "soft_sync_limit",
976 .fops = &ofd_soft_sync_limit_fops },
977 { .name = "lfsck_speed_limit",
978 .fops = &ofd_lfsck_speed_limit_fops },
979 { .name = "lfsck_layout",
980 .fops = &ofd_lfsck_layout_fops },
981 { .name = "lfsck_verify_pfid",
982 .fops = &ofd_lfsck_verify_pfid_fops },
987 * Initialize OFD statistics counters
989 * param[in] stats statistics counters
991 void ofd_stats_counter_init(struct lprocfs_stats *stats)
993 LASSERT(stats && stats->ls_num >= LPROC_OFD_STATS_LAST);
995 lprocfs_counter_init(stats, LPROC_OFD_STATS_READ,
996 LPROCFS_CNTR_AVGMINMAX, "read_bytes", "bytes");
997 lprocfs_counter_init(stats, LPROC_OFD_STATS_WRITE,
998 LPROCFS_CNTR_AVGMINMAX, "write_bytes", "bytes");
999 lprocfs_counter_init(stats, LPROC_OFD_STATS_GETATTR,
1000 0, "getattr", "reqs");
1001 lprocfs_counter_init(stats, LPROC_OFD_STATS_SETATTR,
1002 0, "setattr", "reqs");
1003 lprocfs_counter_init(stats, LPROC_OFD_STATS_PUNCH,
1004 0, "punch", "reqs");
1005 lprocfs_counter_init(stats, LPROC_OFD_STATS_SYNC,
1007 lprocfs_counter_init(stats, LPROC_OFD_STATS_DESTROY,
1008 0, "destroy", "reqs");
1009 lprocfs_counter_init(stats, LPROC_OFD_STATS_CREATE,
1010 0, "create", "reqs");
1011 lprocfs_counter_init(stats, LPROC_OFD_STATS_STATFS,
1012 0, "statfs", "reqs");
1013 lprocfs_counter_init(stats, LPROC_OFD_STATS_GET_INFO,
1014 0, "get_info", "reqs");
1015 lprocfs_counter_init(stats, LPROC_OFD_STATS_SET_INFO,
1016 0, "set_info", "reqs");
1017 lprocfs_counter_init(stats, LPROC_OFD_STATS_QUOTACTL,
1018 0, "quotactl", "reqs");
1021 #endif /* CONFIG_PROC_FS */