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.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2015, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 #define DEBUG_SUBSYSTEM S_CLASS
38 #include <linux/version.h>
39 #include <asm/statfs.h>
40 #include <obd_cksum.h>
41 #include <obd_class.h>
42 #include <lprocfs_status.h>
43 #include <linux/seq_file.h>
44 #include "osc_internal.h"
47 static int osc_active_seq_show(struct seq_file *m, void *v)
49 struct obd_device *dev = m->private;
52 LPROCFS_CLIMP_CHECK(dev);
53 rc = seq_printf(m, "%d\n", !dev->u.cli.cl_import->imp_deactive);
54 LPROCFS_CLIMP_EXIT(dev);
58 static ssize_t osc_active_seq_write(struct file *file,
59 const char __user *buffer,
60 size_t count, loff_t *off)
62 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
65 rc = lprocfs_write_helper(buffer, count, &val);
68 if (val < 0 || val > 1)
72 if (dev->u.cli.cl_import->imp_deactive == val)
73 rc = ptlrpc_set_import_active(dev->u.cli.cl_import, val);
75 CDEBUG(D_CONFIG, "activate %d: ignoring repeat request\n", val);
79 LPROC_SEQ_FOPS(osc_active);
81 static int osc_max_rpcs_in_flight_seq_show(struct seq_file *m, void *v)
83 struct obd_device *dev = m->private;
84 struct client_obd *cli = &dev->u.cli;
87 spin_lock(&cli->cl_loi_list_lock);
88 rc = seq_printf(m, "%u\n", cli->cl_max_rpcs_in_flight);
89 spin_unlock(&cli->cl_loi_list_lock);
93 static ssize_t osc_max_rpcs_in_flight_seq_write(struct file *file,
94 const char __user *buffer,
95 size_t count, loff_t *off)
97 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
98 struct client_obd *cli = &dev->u.cli;
100 int adding, added, req_count;
102 rc = lprocfs_write_helper(buffer, count, &val);
106 if (val < 1 || val > OSC_MAX_RIF_MAX)
109 LPROCFS_CLIMP_CHECK(dev);
111 adding = val - cli->cl_max_rpcs_in_flight;
112 req_count = atomic_read(&osc_pool_req_count);
113 if (adding > 0 && req_count < osc_reqpool_maxreqcount) {
115 * There might be some race which will cause over-limit
116 * allocation, but it is fine.
118 if (req_count + adding > osc_reqpool_maxreqcount)
119 adding = osc_reqpool_maxreqcount - req_count;
121 added = osc_rq_pool->prp_populate(osc_rq_pool, adding);
122 atomic_add(added, &osc_pool_req_count);
125 spin_lock(&cli->cl_loi_list_lock);
126 cli->cl_max_rpcs_in_flight = val;
127 client_adjust_max_dirty(cli);
128 spin_unlock(&cli->cl_loi_list_lock);
130 LPROCFS_CLIMP_EXIT(dev);
133 LPROC_SEQ_FOPS(osc_max_rpcs_in_flight);
135 static int osc_max_dirty_mb_seq_show(struct seq_file *m, void *v)
137 struct obd_device *dev = m->private;
138 struct client_obd *cli = &dev->u.cli;
142 spin_lock(&cli->cl_loi_list_lock);
143 val = cli->cl_dirty_max_pages;
144 spin_unlock(&cli->cl_loi_list_lock);
146 mult = 1 << (20 - PAGE_CACHE_SHIFT);
147 return lprocfs_seq_read_frac_helper(m, val, mult);
150 static ssize_t osc_max_dirty_mb_seq_write(struct file *file,
151 const char __user *buffer,
152 size_t count, loff_t *off)
154 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
155 struct client_obd *cli = &dev->u.cli;
156 int pages_number, mult, rc;
158 mult = 1 << (20 - PAGE_CACHE_SHIFT);
159 rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
163 if (pages_number <= 0 ||
164 pages_number >= OSC_MAX_DIRTY_MB_MAX << (20 - PAGE_CACHE_SHIFT) ||
165 pages_number > totalram_pages / 4) /* 1/4 of RAM */
168 spin_lock(&cli->cl_loi_list_lock);
169 cli->cl_dirty_max_pages = pages_number;
170 osc_wake_cache_waiters(cli);
171 spin_unlock(&cli->cl_loi_list_lock);
175 LPROC_SEQ_FOPS(osc_max_dirty_mb);
177 static int osc_cached_mb_seq_show(struct seq_file *m, void *v)
179 struct obd_device *dev = m->private;
180 struct client_obd *cli = &dev->u.cli;
181 int shift = 20 - PAGE_CACHE_SHIFT;
187 "reclaim: "LPU64"\n",
188 (atomic_long_read(&cli->cl_lru_in_list) +
189 atomic_long_read(&cli->cl_lru_busy)) >> shift,
190 atomic_long_read(&cli->cl_lru_busy),
191 cli->cl_lru_reclaim);
196 /* shrink the number of caching pages to a specific number */
198 osc_cached_mb_seq_write(struct file *file, const char __user *buffer,
199 size_t count, loff_t *off)
201 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
202 struct client_obd *cli = &dev->u.cli;
209 if (count >= sizeof(kernbuf))
212 if (copy_from_user(kernbuf, buffer, count))
216 mult = 1 << (20 - PAGE_CACHE_SHIFT);
217 buffer += lprocfs_find_named_value(kernbuf, "used_mb:", &count) -
219 rc = lprocfs_write_frac_u64_helper(buffer, count, &val, mult);
226 pages_number = (long)val;
228 if (pages_number < 0)
231 rc = atomic_long_read(&cli->cl_lru_in_list) - pages_number;
236 env = cl_env_get(&refcheck);
238 (void)osc_lru_shrink(env, cli, rc, true);
239 cl_env_put(env, &refcheck);
245 LPROC_SEQ_FOPS(osc_cached_mb);
247 static int osc_cur_dirty_bytes_seq_show(struct seq_file *m, void *v)
249 struct obd_device *dev = m->private;
250 struct client_obd *cli = &dev->u.cli;
253 spin_lock(&cli->cl_loi_list_lock);
254 rc = seq_printf(m, "%lu\n", cli->cl_dirty_pages << PAGE_CACHE_SHIFT);
255 spin_unlock(&cli->cl_loi_list_lock);
258 LPROC_SEQ_FOPS_RO(osc_cur_dirty_bytes);
260 static int osc_cur_grant_bytes_seq_show(struct seq_file *m, void *v)
262 struct obd_device *dev = m->private;
263 struct client_obd *cli = &dev->u.cli;
266 spin_lock(&cli->cl_loi_list_lock);
267 rc = seq_printf(m, "%lu\n", cli->cl_avail_grant);
268 spin_unlock(&cli->cl_loi_list_lock);
272 static ssize_t osc_cur_grant_bytes_seq_write(struct file *file,
273 const char __user *buffer,
274 size_t count, loff_t *off)
276 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
277 struct client_obd *cli = &obd->u.cli;
284 rc = lprocfs_write_u64_helper(buffer, count, &val);
288 /* this is only for shrinking grant */
289 spin_lock(&cli->cl_loi_list_lock);
290 if (val >= cli->cl_avail_grant) {
291 spin_unlock(&cli->cl_loi_list_lock);
295 spin_unlock(&cli->cl_loi_list_lock);
297 LPROCFS_CLIMP_CHECK(obd);
298 if (cli->cl_import->imp_state == LUSTRE_IMP_FULL)
299 rc = osc_shrink_grant_to_target(cli, val);
300 LPROCFS_CLIMP_EXIT(obd);
305 LPROC_SEQ_FOPS(osc_cur_grant_bytes);
307 static int osc_cur_lost_grant_bytes_seq_show(struct seq_file *m, void *v)
309 struct obd_device *dev = m->private;
310 struct client_obd *cli = &dev->u.cli;
313 spin_lock(&cli->cl_loi_list_lock);
314 rc = seq_printf(m, "%lu\n", cli->cl_lost_grant);
315 spin_unlock(&cli->cl_loi_list_lock);
318 LPROC_SEQ_FOPS_RO(osc_cur_lost_grant_bytes);
320 static int osc_grant_shrink_interval_seq_show(struct seq_file *m, void *v)
322 struct obd_device *obd = m->private;
326 return seq_printf(m, "%d\n",
327 obd->u.cli.cl_grant_shrink_interval);
330 static ssize_t osc_grant_shrink_interval_seq_write(struct file *file,
331 const char __user *buffer,
332 size_t count, loff_t *off)
334 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
340 rc = lprocfs_write_helper(buffer, count, &val);
347 obd->u.cli.cl_grant_shrink_interval = val;
351 LPROC_SEQ_FOPS(osc_grant_shrink_interval);
353 static int osc_checksum_seq_show(struct seq_file *m, void *v)
355 struct obd_device *obd = m->private;
360 return seq_printf(m, "%d\n",
361 obd->u.cli.cl_checksum ? 1 : 0);
364 static ssize_t osc_checksum_seq_write(struct file *file,
365 const char __user *buffer,
366 size_t count, loff_t *off)
368 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
374 rc = lprocfs_write_helper(buffer, count, &val);
378 obd->u.cli.cl_checksum = (val ? 1 : 0);
382 LPROC_SEQ_FOPS(osc_checksum);
384 static int osc_checksum_type_seq_show(struct seq_file *m, void *v)
386 struct obd_device *obd = m->private;
393 for (i = 0; i < ARRAY_SIZE(cksum_name); i++) {
394 if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
396 if (obd->u.cli.cl_cksum_type == (1 << i))
397 seq_printf(m, "[%s] ", cksum_name[i]);
399 seq_printf(m, "%s ", cksum_name[i]);
405 static ssize_t osc_checksum_type_seq_write(struct file *file,
406 const char __user *buffer,
407 size_t count, loff_t *off)
409 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
417 if (count > sizeof(kernbuf) - 1)
419 if (copy_from_user(kernbuf, buffer, count))
421 if (count > 0 && kernbuf[count - 1] == '\n')
422 kernbuf[count - 1] = '\0';
424 kernbuf[count] = '\0';
426 for (i = 0; i < ARRAY_SIZE(cksum_name); i++) {
427 if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
429 if (!strcmp(kernbuf, cksum_name[i])) {
430 obd->u.cli.cl_cksum_type = 1 << i;
436 LPROC_SEQ_FOPS(osc_checksum_type);
438 static int osc_resend_count_seq_show(struct seq_file *m, void *v)
440 struct obd_device *obd = m->private;
442 return seq_printf(m, "%u\n", atomic_read(&obd->u.cli.cl_resends));
445 static ssize_t osc_resend_count_seq_write(struct file *file,
446 const char __user *buffer,
447 size_t count, loff_t *off)
449 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
452 rc = lprocfs_write_helper(buffer, count, &val);
459 atomic_set(&obd->u.cli.cl_resends, val);
463 LPROC_SEQ_FOPS(osc_resend_count);
465 static int osc_contention_seconds_seq_show(struct seq_file *m, void *v)
467 struct obd_device *obd = m->private;
468 struct osc_device *od = obd2osc_dev(obd);
470 return seq_printf(m, "%u\n", od->od_contention_time);
473 static ssize_t osc_contention_seconds_seq_write(struct file *file,
474 const char __user *buffer,
475 size_t count, loff_t *off)
477 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
478 struct osc_device *od = obd2osc_dev(obd);
480 return lprocfs_write_helper(buffer, count, &od->od_contention_time) ?: count;
482 LPROC_SEQ_FOPS(osc_contention_seconds);
484 static int osc_lockless_truncate_seq_show(struct seq_file *m, void *v)
486 struct obd_device *obd = m->private;
487 struct osc_device *od = obd2osc_dev(obd);
489 return seq_printf(m, "%u\n", od->od_lockless_truncate);
492 static ssize_t osc_lockless_truncate_seq_write(struct file *file,
493 const char __user *buffer,
494 size_t count, loff_t *off)
496 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
497 struct osc_device *od = obd2osc_dev(obd);
499 return lprocfs_write_helper(buffer, count, &od->od_lockless_truncate) ?:
502 LPROC_SEQ_FOPS(osc_lockless_truncate);
504 static int osc_destroys_in_flight_seq_show(struct seq_file *m, void *v)
506 struct obd_device *obd = m->private;
507 return seq_printf(m, "%u\n",
508 atomic_read(&obd->u.cli.cl_destroy_in_flight));
510 LPROC_SEQ_FOPS_RO(osc_destroys_in_flight);
512 static int osc_obd_max_pages_per_rpc_seq_show(struct seq_file *m, void *v)
514 return lprocfs_obd_max_pages_per_rpc_seq_show(m, m->private);
517 static ssize_t osc_obd_max_pages_per_rpc_seq_write(struct file *file,
518 const char __user *buffer,
519 size_t count, loff_t *off)
521 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
522 struct client_obd *cli = &dev->u.cli;
523 struct obd_connect_data *ocd = &cli->cl_import->imp_connect_data;
527 rc = lprocfs_write_u64_helper(buffer, count, &val);
531 /* if the max_pages is specified in bytes, convert to pages */
532 if (val >= ONE_MB_BRW_SIZE)
533 val >>= PAGE_CACHE_SHIFT;
535 LPROCFS_CLIMP_CHECK(dev);
537 chunk_mask = ~((1 << (cli->cl_chunkbits - PAGE_CACHE_SHIFT)) - 1);
538 /* max_pages_per_rpc must be chunk aligned */
539 val = (val + ~chunk_mask) & chunk_mask;
540 if (val == 0 || (ocd->ocd_brw_size != 0 &&
541 val > ocd->ocd_brw_size >> PAGE_CACHE_SHIFT)) {
542 LPROCFS_CLIMP_EXIT(dev);
545 spin_lock(&cli->cl_loi_list_lock);
546 cli->cl_max_pages_per_rpc = val;
547 client_adjust_max_dirty(cli);
548 spin_unlock(&cli->cl_loi_list_lock);
550 LPROCFS_CLIMP_EXIT(dev);
553 LPROC_SEQ_FOPS(osc_obd_max_pages_per_rpc);
555 static int osc_unstable_stats_seq_show(struct seq_file *m, void *v)
557 struct obd_device *dev = m->private;
558 struct client_obd *cli = &dev->u.cli;
562 pages = atomic_long_read(&cli->cl_unstable_count);
563 mb = (pages * PAGE_CACHE_SIZE) >> 20;
565 return seq_printf(m, "unstable_pages: %20ld\n"
566 "unstable_mb: %10d\n",
569 LPROC_SEQ_FOPS_RO(osc_unstable_stats);
571 LPROC_SEQ_FOPS_RO_TYPE(osc, uuid);
572 LPROC_SEQ_FOPS_RO_TYPE(osc, connect_flags);
573 LPROC_SEQ_FOPS_RO_TYPE(osc, blksize);
574 LPROC_SEQ_FOPS_RO_TYPE(osc, kbytestotal);
575 LPROC_SEQ_FOPS_RO_TYPE(osc, kbytesfree);
576 LPROC_SEQ_FOPS_RO_TYPE(osc, kbytesavail);
577 LPROC_SEQ_FOPS_RO_TYPE(osc, filestotal);
578 LPROC_SEQ_FOPS_RO_TYPE(osc, filesfree);
579 LPROC_SEQ_FOPS_RO_TYPE(osc, server_uuid);
580 LPROC_SEQ_FOPS_RO_TYPE(osc, conn_uuid);
581 LPROC_SEQ_FOPS_RO_TYPE(osc, timeouts);
582 LPROC_SEQ_FOPS_RO_TYPE(osc, state);
584 LPROC_SEQ_FOPS_WO_TYPE(osc, ping);
586 LPROC_SEQ_FOPS_RW_TYPE(osc, import);
587 LPROC_SEQ_FOPS_RW_TYPE(osc, pinger_recov);
589 struct lprocfs_vars lprocfs_osc_obd_vars[] = {
591 .fops = &osc_uuid_fops },
593 .fops = &osc_ping_fops,
595 { .name = "connect_flags",
596 .fops = &osc_connect_flags_fops },
597 { .name = "blocksize",
598 .fops = &osc_blksize_fops },
599 { .name = "kbytestotal",
600 .fops = &osc_kbytestotal_fops },
601 { .name = "kbytesfree",
602 .fops = &osc_kbytesfree_fops },
603 { .name = "kbytesavail",
604 .fops = &osc_kbytesavail_fops },
605 { .name = "filestotal",
606 .fops = &osc_filestotal_fops },
607 { .name = "filesfree",
608 .fops = &osc_filesfree_fops },
609 { .name = "ost_server_uuid",
610 .fops = &osc_server_uuid_fops },
611 { .name = "ost_conn_uuid",
612 .fops = &osc_conn_uuid_fops },
614 .fops = &osc_active_fops },
615 { .name = "max_pages_per_rpc",
616 .fops = &osc_obd_max_pages_per_rpc_fops },
617 { .name = "max_rpcs_in_flight",
618 .fops = &osc_max_rpcs_in_flight_fops },
619 { .name = "destroys_in_flight",
620 .fops = &osc_destroys_in_flight_fops },
621 { .name = "max_dirty_mb",
622 .fops = &osc_max_dirty_mb_fops },
623 { .name = "osc_cached_mb",
624 .fops = &osc_cached_mb_fops },
625 { .name = "cur_dirty_bytes",
626 .fops = &osc_cur_dirty_bytes_fops },
627 { .name = "cur_grant_bytes",
628 .fops = &osc_cur_grant_bytes_fops },
629 { .name = "cur_lost_grant_bytes",
630 .fops = &osc_cur_lost_grant_bytes_fops },
631 { .name = "grant_shrink_interval",
632 .fops = &osc_grant_shrink_interval_fops },
633 { .name = "checksums",
634 .fops = &osc_checksum_fops },
635 { .name = "checksum_type",
636 .fops = &osc_checksum_type_fops },
637 { .name = "resend_count",
638 .fops = &osc_resend_count_fops },
639 { .name = "timeouts",
640 .fops = &osc_timeouts_fops },
641 { .name = "contention_seconds",
642 .fops = &osc_contention_seconds_fops },
643 { .name = "lockless_truncate",
644 .fops = &osc_lockless_truncate_fops },
646 .fops = &osc_import_fops },
648 .fops = &osc_state_fops },
649 { .name = "pinger_recov",
650 .fops = &osc_pinger_recov_fops },
651 { .name = "unstable_stats",
652 .fops = &osc_unstable_stats_fops },
656 #define pct(a,b) (b ? a * 100 / b : 0)
658 static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v)
661 struct obd_device *dev = seq->private;
662 struct client_obd *cli = &dev->u.cli;
663 unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
666 do_gettimeofday(&now);
668 spin_lock(&cli->cl_loi_list_lock);
670 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
671 now.tv_sec, now.tv_usec);
672 seq_printf(seq, "read RPCs in flight: %d\n",
673 cli->cl_r_in_flight);
674 seq_printf(seq, "write RPCs in flight: %d\n",
675 cli->cl_w_in_flight);
676 seq_printf(seq, "pending write pages: %d\n",
677 atomic_read(&cli->cl_pending_w_pages));
678 seq_printf(seq, "pending read pages: %d\n",
679 atomic_read(&cli->cl_pending_r_pages));
681 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
682 seq_printf(seq, "pages per rpc rpcs %% cum %% |");
683 seq_printf(seq, " rpcs %% cum %%\n");
685 read_tot = lprocfs_oh_sum(&cli->cl_read_page_hist);
686 write_tot = lprocfs_oh_sum(&cli->cl_write_page_hist);
690 for (i = 0; i < OBD_HIST_MAX; i++) {
691 unsigned long r = cli->cl_read_page_hist.oh_buckets[i];
692 unsigned long w = cli->cl_write_page_hist.oh_buckets[i];
696 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
697 1 << i, r, pct(r, read_tot),
698 pct(read_cum, read_tot), w,
700 pct(write_cum, write_tot));
701 if (read_cum == read_tot && write_cum == write_tot)
705 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
706 seq_printf(seq, "rpcs in flight rpcs %% cum %% |");
707 seq_printf(seq, " rpcs %% cum %%\n");
709 read_tot = lprocfs_oh_sum(&cli->cl_read_rpc_hist);
710 write_tot = lprocfs_oh_sum(&cli->cl_write_rpc_hist);
714 for (i = 0; i < OBD_HIST_MAX; i++) {
715 unsigned long r = cli->cl_read_rpc_hist.oh_buckets[i];
716 unsigned long w = cli->cl_write_rpc_hist.oh_buckets[i];
719 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
720 i, r, pct(r, read_tot),
721 pct(read_cum, read_tot), w,
723 pct(write_cum, write_tot));
724 if (read_cum == read_tot && write_cum == write_tot)
728 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
729 seq_printf(seq, "offset rpcs %% cum %% |");
730 seq_printf(seq, " rpcs %% cum %%\n");
732 read_tot = lprocfs_oh_sum(&cli->cl_read_offset_hist);
733 write_tot = lprocfs_oh_sum(&cli->cl_write_offset_hist);
737 for (i = 0; i < OBD_HIST_MAX; i++) {
738 unsigned long r = cli->cl_read_offset_hist.oh_buckets[i];
739 unsigned long w = cli->cl_write_offset_hist.oh_buckets[i];
742 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
743 (i == 0) ? 0 : 1 << (i - 1),
744 r, pct(r, read_tot), pct(read_cum, read_tot),
745 w, pct(w, write_tot), pct(write_cum, write_tot));
746 if (read_cum == read_tot && write_cum == write_tot)
750 spin_unlock(&cli->cl_loi_list_lock);
756 static ssize_t osc_rpc_stats_seq_write(struct file *file,
757 const char __user *buf,
758 size_t len, loff_t *off)
760 struct seq_file *seq = file->private_data;
761 struct obd_device *dev = seq->private;
762 struct client_obd *cli = &dev->u.cli;
764 lprocfs_oh_clear(&cli->cl_read_rpc_hist);
765 lprocfs_oh_clear(&cli->cl_write_rpc_hist);
766 lprocfs_oh_clear(&cli->cl_read_page_hist);
767 lprocfs_oh_clear(&cli->cl_write_page_hist);
768 lprocfs_oh_clear(&cli->cl_read_offset_hist);
769 lprocfs_oh_clear(&cli->cl_write_offset_hist);
773 LPROC_SEQ_FOPS(osc_rpc_stats);
775 static int osc_stats_seq_show(struct seq_file *seq, void *v)
778 struct obd_device *dev = seq->private;
779 struct osc_stats *stats = &obd2osc_dev(dev)->od_stats;
781 do_gettimeofday(&now);
783 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
784 now.tv_sec, now.tv_usec);
785 seq_printf(seq, "lockless_write_bytes\t\t"LPU64"\n",
786 stats->os_lockless_writes);
787 seq_printf(seq, "lockless_read_bytes\t\t"LPU64"\n",
788 stats->os_lockless_reads);
789 seq_printf(seq, "lockless_truncate\t\t"LPU64"\n",
790 stats->os_lockless_truncates);
794 static ssize_t osc_stats_seq_write(struct file *file,
795 const char __user *buf,
796 size_t len, loff_t *off)
798 struct seq_file *seq = file->private_data;
799 struct obd_device *dev = seq->private;
800 struct osc_stats *stats = &obd2osc_dev(dev)->od_stats;
802 memset(stats, 0, sizeof(*stats));
806 LPROC_SEQ_FOPS(osc_stats);
808 int lproc_osc_attach_seqstat(struct obd_device *dev)
812 rc = lprocfs_seq_create(dev->obd_proc_entry, "osc_stats", 0644,
813 &osc_stats_fops, dev);
815 rc = lprocfs_obd_seq_create(dev, "rpc_stats", 0644,
816 &osc_rpc_stats_fops, dev);
820 #endif /* CONFIG_PROC_FS */