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;
51 LPROCFS_CLIMP_CHECK(dev);
52 seq_printf(m, "%d\n", !dev->u.cli.cl_import->imp_deactive);
53 LPROCFS_CLIMP_EXIT(dev);
57 static ssize_t osc_active_seq_write(struct file *file,
58 const char __user *buffer,
59 size_t count, loff_t *off)
61 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
65 rc = lprocfs_str_to_s64(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",
80 LPROC_SEQ_FOPS(osc_active);
82 static int osc_max_rpcs_in_flight_seq_show(struct seq_file *m, void *v)
84 struct obd_device *dev = m->private;
85 struct client_obd *cli = &dev->u.cli;
87 spin_lock(&cli->cl_loi_list_lock);
88 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;
103 rc = lprocfs_str_to_s64(buffer, count, &val);
106 if (val < 1 || val > OSC_MAX_RIF_MAX)
109 LPROCFS_CLIMP_CHECK(dev);
111 adding = (int)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;
159 rc = lprocfs_str_with_units_to_s64(buffer, count, &pages_number, 'M');
163 pages_number >>= PAGE_CACHE_SHIFT;
165 if (pages_number <= 0 ||
166 pages_number >= OSC_MAX_DIRTY_MB_MAX << (20 - PAGE_CACHE_SHIFT) ||
167 pages_number > totalram_pages / 4) /* 1/4 of RAM */
170 spin_lock(&cli->cl_loi_list_lock);
171 cli->cl_dirty_max_pages = pages_number;
172 osc_wake_cache_waiters(cli);
173 spin_unlock(&cli->cl_loi_list_lock);
177 LPROC_SEQ_FOPS(osc_max_dirty_mb);
179 static int osc_cached_mb_seq_show(struct seq_file *m, void *v)
181 struct obd_device *dev = m->private;
182 struct client_obd *cli = &dev->u.cli;
183 int shift = 20 - PAGE_CACHE_SHIFT;
185 seq_printf(m, "used_mb: %ld\n"
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;
207 if (count >= sizeof(kernbuf))
210 if (copy_from_user(kernbuf, buffer, count))
214 buffer += lprocfs_find_named_value(kernbuf, "used_mb:", &count) -
216 rc = lprocfs_str_with_units_to_s64(buffer, count, &pages_number, 'M');
220 pages_number >>= PAGE_CACHE_SHIFT;
222 if (pages_number < 0)
225 rc = atomic_long_read(&cli->cl_lru_in_list) - pages_number;
230 env = cl_env_get(&refcheck);
232 (void)osc_lru_shrink(env, cli, rc, true);
233 cl_env_put(env, &refcheck);
239 LPROC_SEQ_FOPS(osc_cached_mb);
241 static int osc_cur_dirty_bytes_seq_show(struct seq_file *m, void *v)
243 struct obd_device *dev = m->private;
244 struct client_obd *cli = &dev->u.cli;
246 spin_lock(&cli->cl_loi_list_lock);
247 seq_printf(m, "%lu\n", cli->cl_dirty_pages << PAGE_CACHE_SHIFT);
248 spin_unlock(&cli->cl_loi_list_lock);
251 LPROC_SEQ_FOPS_RO(osc_cur_dirty_bytes);
253 static int osc_cur_grant_bytes_seq_show(struct seq_file *m, void *v)
255 struct obd_device *dev = m->private;
256 struct client_obd *cli = &dev->u.cli;
258 spin_lock(&cli->cl_loi_list_lock);
259 seq_printf(m, "%lu\n", cli->cl_avail_grant);
260 spin_unlock(&cli->cl_loi_list_lock);
264 static ssize_t osc_cur_grant_bytes_seq_write(struct file *file,
265 const char __user *buffer,
266 size_t count, loff_t *off)
268 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
269 struct client_obd *cli = &obd->u.cli;
276 rc = lprocfs_str_to_s64(buffer, count, &val);
282 /* this is only for shrinking grant */
283 spin_lock(&cli->cl_loi_list_lock);
284 if (val >= cli->cl_avail_grant) {
285 spin_unlock(&cli->cl_loi_list_lock);
289 spin_unlock(&cli->cl_loi_list_lock);
291 LPROCFS_CLIMP_CHECK(obd);
292 if (cli->cl_import->imp_state == LUSTRE_IMP_FULL)
293 rc = osc_shrink_grant_to_target(cli, val);
294 LPROCFS_CLIMP_EXIT(obd);
299 LPROC_SEQ_FOPS(osc_cur_grant_bytes);
301 static int osc_cur_lost_grant_bytes_seq_show(struct seq_file *m, void *v)
303 struct obd_device *dev = m->private;
304 struct client_obd *cli = &dev->u.cli;
306 spin_lock(&cli->cl_loi_list_lock);
307 seq_printf(m, "%lu\n", cli->cl_lost_grant);
308 spin_unlock(&cli->cl_loi_list_lock);
311 LPROC_SEQ_FOPS_RO(osc_cur_lost_grant_bytes);
313 static int osc_cur_dirty_grant_bytes_seq_show(struct seq_file *m, void *v)
315 struct obd_device *dev = m->private;
316 struct client_obd *cli = &dev->u.cli;
318 spin_lock(&cli->cl_loi_list_lock);
319 seq_printf(m, "%lu\n", cli->cl_dirty_grant);
320 spin_unlock(&cli->cl_loi_list_lock);
323 LPROC_SEQ_FOPS_RO(osc_cur_dirty_grant_bytes);
325 static int osc_grant_shrink_interval_seq_show(struct seq_file *m, void *v)
327 struct obd_device *obd = m->private;
331 seq_printf(m, "%d\n",
332 obd->u.cli.cl_grant_shrink_interval);
336 static ssize_t osc_grant_shrink_interval_seq_write(struct file *file,
337 const char __user *buffer,
338 size_t count, loff_t *off)
340 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
347 rc = lprocfs_str_to_s64(buffer, count, &val);
351 if (val <= 0 || val > INT_MAX)
354 obd->u.cli.cl_grant_shrink_interval = val;
358 LPROC_SEQ_FOPS(osc_grant_shrink_interval);
360 static int osc_checksum_seq_show(struct seq_file *m, void *v)
362 struct obd_device *obd = m->private;
367 seq_printf(m, "%d\n", obd->u.cli.cl_checksum ? 1 : 0);
371 static ssize_t osc_checksum_seq_write(struct file *file,
372 const char __user *buffer,
373 size_t count, loff_t *off)
375 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
382 rc = lprocfs_str_to_s64(buffer, count, &val);
386 obd->u.cli.cl_checksum = !!val;
390 LPROC_SEQ_FOPS(osc_checksum);
392 static int osc_checksum_type_seq_show(struct seq_file *m, void *v)
394 struct obd_device *obd = m->private;
401 for (i = 0; i < ARRAY_SIZE(cksum_name); i++) {
402 if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
404 if (obd->u.cli.cl_cksum_type == (1 << i))
405 seq_printf(m, "[%s] ", cksum_name[i]);
407 seq_printf(m, "%s ", cksum_name[i]);
413 static ssize_t osc_checksum_type_seq_write(struct file *file,
414 const char __user *buffer,
415 size_t count, loff_t *off)
417 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
425 if (count > sizeof(kernbuf) - 1)
427 if (copy_from_user(kernbuf, buffer, count))
429 if (count > 0 && kernbuf[count - 1] == '\n')
430 kernbuf[count - 1] = '\0';
432 kernbuf[count] = '\0';
434 for (i = 0; i < ARRAY_SIZE(cksum_name); i++) {
435 if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
437 if (!strcmp(kernbuf, cksum_name[i])) {
438 obd->u.cli.cl_cksum_type = 1 << i;
444 LPROC_SEQ_FOPS(osc_checksum_type);
446 static int osc_resend_count_seq_show(struct seq_file *m, void *v)
448 struct obd_device *obd = m->private;
450 seq_printf(m, "%u\n", atomic_read(&obd->u.cli.cl_resends));
454 static ssize_t osc_resend_count_seq_write(struct file *file,
455 const char __user *buffer,
456 size_t count, loff_t *off)
458 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
462 rc = lprocfs_str_to_s64(buffer, count, &val);
466 if (val < 0 || val > INT_MAX)
469 atomic_set(&obd->u.cli.cl_resends, val);
473 LPROC_SEQ_FOPS(osc_resend_count);
475 static int osc_contention_seconds_seq_show(struct seq_file *m, void *v)
477 struct obd_device *obd = m->private;
478 struct osc_device *od = obd2osc_dev(obd);
480 seq_printf(m, "%u\n", od->od_contention_time);
484 static ssize_t osc_contention_seconds_seq_write(struct file *file,
485 const char __user *buffer,
486 size_t count, loff_t *off)
488 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
489 struct osc_device *od = obd2osc_dev(obd);
493 rc = lprocfs_str_to_s64(buffer, count, &val);
496 if (val < 0 || val > INT_MAX)
499 od->od_contention_time = val;
503 LPROC_SEQ_FOPS(osc_contention_seconds);
505 static int osc_lockless_truncate_seq_show(struct seq_file *m, void *v)
507 struct obd_device *obd = m->private;
508 struct osc_device *od = obd2osc_dev(obd);
510 seq_printf(m, "%u\n", od->od_lockless_truncate);
514 static ssize_t osc_lockless_truncate_seq_write(struct file *file,
515 const char __user *buffer,
516 size_t count, loff_t *off)
518 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
519 struct osc_device *od = obd2osc_dev(obd);
523 rc = lprocfs_str_to_s64(buffer, count, &val);
529 od->od_lockless_truncate = !!val;
533 LPROC_SEQ_FOPS(osc_lockless_truncate);
535 static int osc_destroys_in_flight_seq_show(struct seq_file *m, void *v)
537 struct obd_device *obd = m->private;
538 seq_printf(m, "%u\n",
539 atomic_read(&obd->u.cli.cl_destroy_in_flight));
542 LPROC_SEQ_FOPS_RO(osc_destroys_in_flight);
544 static int osc_obd_max_pages_per_rpc_seq_show(struct seq_file *m, void *v)
546 return lprocfs_obd_max_pages_per_rpc_seq_show(m, m->private);
549 static ssize_t osc_obd_max_pages_per_rpc_seq_write(struct file *file,
550 const char __user *buffer,
551 size_t count, loff_t *off)
553 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
554 struct client_obd *cli = &dev->u.cli;
555 struct obd_connect_data *ocd = &cli->cl_import->imp_connect_data;
559 rc = lprocfs_str_to_s64(buffer, count, &val);
565 /* if the max_pages is specified in bytes, convert to pages */
566 if (val >= ONE_MB_BRW_SIZE)
567 val >>= PAGE_CACHE_SHIFT;
569 LPROCFS_CLIMP_CHECK(dev);
571 chunk_mask = ~((1 << (cli->cl_chunkbits - PAGE_CACHE_SHIFT)) - 1);
572 /* max_pages_per_rpc must be chunk aligned */
573 val = (val + ~chunk_mask) & chunk_mask;
574 if (val == 0 || (ocd->ocd_brw_size != 0 &&
575 val > ocd->ocd_brw_size >> PAGE_CACHE_SHIFT)) {
576 LPROCFS_CLIMP_EXIT(dev);
579 spin_lock(&cli->cl_loi_list_lock);
580 cli->cl_max_pages_per_rpc = val;
581 client_adjust_max_dirty(cli);
582 spin_unlock(&cli->cl_loi_list_lock);
584 LPROCFS_CLIMP_EXIT(dev);
587 LPROC_SEQ_FOPS(osc_obd_max_pages_per_rpc);
589 static int osc_unstable_stats_seq_show(struct seq_file *m, void *v)
591 struct obd_device *dev = m->private;
592 struct client_obd *cli = &dev->u.cli;
596 pages = atomic_long_read(&cli->cl_unstable_count);
597 mb = (pages * PAGE_CACHE_SIZE) >> 20;
599 seq_printf(m, "unstable_pages: %20ld\n"
600 "unstable_mb: %10d\n",
604 LPROC_SEQ_FOPS_RO(osc_unstable_stats);
606 LPROC_SEQ_FOPS_RO_TYPE(osc, uuid);
607 LPROC_SEQ_FOPS_RO_TYPE(osc, connect_flags);
608 LPROC_SEQ_FOPS_RO_TYPE(osc, blksize);
609 LPROC_SEQ_FOPS_RO_TYPE(osc, kbytestotal);
610 LPROC_SEQ_FOPS_RO_TYPE(osc, kbytesfree);
611 LPROC_SEQ_FOPS_RO_TYPE(osc, kbytesavail);
612 LPROC_SEQ_FOPS_RO_TYPE(osc, filestotal);
613 LPROC_SEQ_FOPS_RO_TYPE(osc, filesfree);
614 LPROC_SEQ_FOPS_RO_TYPE(osc, server_uuid);
615 LPROC_SEQ_FOPS_RO_TYPE(osc, conn_uuid);
616 LPROC_SEQ_FOPS_RO_TYPE(osc, timeouts);
617 LPROC_SEQ_FOPS_RO_TYPE(osc, state);
619 LPROC_SEQ_FOPS_WO_TYPE(osc, ping);
621 LPROC_SEQ_FOPS_RW_TYPE(osc, import);
622 LPROC_SEQ_FOPS_RW_TYPE(osc, pinger_recov);
624 struct lprocfs_vars lprocfs_osc_obd_vars[] = {
626 .fops = &osc_uuid_fops },
628 .fops = &osc_ping_fops,
630 { .name = "connect_flags",
631 .fops = &osc_connect_flags_fops },
632 { .name = "blocksize",
633 .fops = &osc_blksize_fops },
634 { .name = "kbytestotal",
635 .fops = &osc_kbytestotal_fops },
636 { .name = "kbytesfree",
637 .fops = &osc_kbytesfree_fops },
638 { .name = "kbytesavail",
639 .fops = &osc_kbytesavail_fops },
640 { .name = "filestotal",
641 .fops = &osc_filestotal_fops },
642 { .name = "filesfree",
643 .fops = &osc_filesfree_fops },
644 { .name = "ost_server_uuid",
645 .fops = &osc_server_uuid_fops },
646 { .name = "ost_conn_uuid",
647 .fops = &osc_conn_uuid_fops },
649 .fops = &osc_active_fops },
650 { .name = "max_pages_per_rpc",
651 .fops = &osc_obd_max_pages_per_rpc_fops },
652 { .name = "max_rpcs_in_flight",
653 .fops = &osc_max_rpcs_in_flight_fops },
654 { .name = "destroys_in_flight",
655 .fops = &osc_destroys_in_flight_fops },
656 { .name = "max_dirty_mb",
657 .fops = &osc_max_dirty_mb_fops },
658 { .name = "osc_cached_mb",
659 .fops = &osc_cached_mb_fops },
660 { .name = "cur_dirty_bytes",
661 .fops = &osc_cur_dirty_bytes_fops },
662 { .name = "cur_grant_bytes",
663 .fops = &osc_cur_grant_bytes_fops },
664 { .name = "cur_lost_grant_bytes",
665 .fops = &osc_cur_lost_grant_bytes_fops },
666 { .name = "cur_dirty_grant_bytes",
667 .fops = &osc_cur_dirty_grant_bytes_fops },
668 { .name = "grant_shrink_interval",
669 .fops = &osc_grant_shrink_interval_fops },
670 { .name = "checksums",
671 .fops = &osc_checksum_fops },
672 { .name = "checksum_type",
673 .fops = &osc_checksum_type_fops },
674 { .name = "resend_count",
675 .fops = &osc_resend_count_fops },
676 { .name = "timeouts",
677 .fops = &osc_timeouts_fops },
678 { .name = "contention_seconds",
679 .fops = &osc_contention_seconds_fops },
680 { .name = "lockless_truncate",
681 .fops = &osc_lockless_truncate_fops },
683 .fops = &osc_import_fops },
685 .fops = &osc_state_fops },
686 { .name = "pinger_recov",
687 .fops = &osc_pinger_recov_fops },
688 { .name = "unstable_stats",
689 .fops = &osc_unstable_stats_fops },
693 #define pct(a,b) (b ? a * 100 / b : 0)
695 static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v)
698 struct obd_device *dev = seq->private;
699 struct client_obd *cli = &dev->u.cli;
700 unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
703 do_gettimeofday(&now);
705 spin_lock(&cli->cl_loi_list_lock);
707 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
708 now.tv_sec, now.tv_usec);
709 seq_printf(seq, "read RPCs in flight: %d\n",
710 cli->cl_r_in_flight);
711 seq_printf(seq, "write RPCs in flight: %d\n",
712 cli->cl_w_in_flight);
713 seq_printf(seq, "pending write pages: %d\n",
714 atomic_read(&cli->cl_pending_w_pages));
715 seq_printf(seq, "pending read pages: %d\n",
716 atomic_read(&cli->cl_pending_r_pages));
718 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
719 seq_printf(seq, "pages per rpc rpcs %% cum %% |");
720 seq_printf(seq, " rpcs %% cum %%\n");
722 read_tot = lprocfs_oh_sum(&cli->cl_read_page_hist);
723 write_tot = lprocfs_oh_sum(&cli->cl_write_page_hist);
727 for (i = 0; i < OBD_HIST_MAX; i++) {
728 unsigned long r = cli->cl_read_page_hist.oh_buckets[i];
729 unsigned long w = cli->cl_write_page_hist.oh_buckets[i];
733 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
734 1 << i, r, pct(r, read_tot),
735 pct(read_cum, read_tot), w,
737 pct(write_cum, write_tot));
738 if (read_cum == read_tot && write_cum == write_tot)
742 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
743 seq_printf(seq, "rpcs in flight rpcs %% cum %% |");
744 seq_printf(seq, " rpcs %% cum %%\n");
746 read_tot = lprocfs_oh_sum(&cli->cl_read_rpc_hist);
747 write_tot = lprocfs_oh_sum(&cli->cl_write_rpc_hist);
751 for (i = 0; i < OBD_HIST_MAX; i++) {
752 unsigned long r = cli->cl_read_rpc_hist.oh_buckets[i];
753 unsigned long w = cli->cl_write_rpc_hist.oh_buckets[i];
756 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
757 i, r, pct(r, read_tot),
758 pct(read_cum, read_tot), w,
760 pct(write_cum, write_tot));
761 if (read_cum == read_tot && write_cum == write_tot)
765 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
766 seq_printf(seq, "offset rpcs %% cum %% |");
767 seq_printf(seq, " rpcs %% cum %%\n");
769 read_tot = lprocfs_oh_sum(&cli->cl_read_offset_hist);
770 write_tot = lprocfs_oh_sum(&cli->cl_write_offset_hist);
774 for (i = 0; i < OBD_HIST_MAX; i++) {
775 unsigned long r = cli->cl_read_offset_hist.oh_buckets[i];
776 unsigned long w = cli->cl_write_offset_hist.oh_buckets[i];
779 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
780 (i == 0) ? 0 : 1 << (i - 1),
781 r, pct(r, read_tot), pct(read_cum, read_tot),
782 w, pct(w, write_tot), pct(write_cum, write_tot));
783 if (read_cum == read_tot && write_cum == write_tot)
787 spin_unlock(&cli->cl_loi_list_lock);
793 static ssize_t osc_rpc_stats_seq_write(struct file *file,
794 const char __user *buf,
795 size_t len, loff_t *off)
797 struct seq_file *seq = file->private_data;
798 struct obd_device *dev = seq->private;
799 struct client_obd *cli = &dev->u.cli;
801 lprocfs_oh_clear(&cli->cl_read_rpc_hist);
802 lprocfs_oh_clear(&cli->cl_write_rpc_hist);
803 lprocfs_oh_clear(&cli->cl_read_page_hist);
804 lprocfs_oh_clear(&cli->cl_write_page_hist);
805 lprocfs_oh_clear(&cli->cl_read_offset_hist);
806 lprocfs_oh_clear(&cli->cl_write_offset_hist);
810 LPROC_SEQ_FOPS(osc_rpc_stats);
812 static int osc_stats_seq_show(struct seq_file *seq, void *v)
815 struct obd_device *dev = seq->private;
816 struct osc_stats *stats = &obd2osc_dev(dev)->od_stats;
818 do_gettimeofday(&now);
820 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
821 now.tv_sec, now.tv_usec);
822 seq_printf(seq, "lockless_write_bytes\t\t"LPU64"\n",
823 stats->os_lockless_writes);
824 seq_printf(seq, "lockless_read_bytes\t\t"LPU64"\n",
825 stats->os_lockless_reads);
826 seq_printf(seq, "lockless_truncate\t\t"LPU64"\n",
827 stats->os_lockless_truncates);
831 static ssize_t osc_stats_seq_write(struct file *file,
832 const char __user *buf,
833 size_t len, loff_t *off)
835 struct seq_file *seq = file->private_data;
836 struct obd_device *dev = seq->private;
837 struct osc_stats *stats = &obd2osc_dev(dev)->od_stats;
839 memset(stats, 0, sizeof(*stats));
843 LPROC_SEQ_FOPS(osc_stats);
845 int lproc_osc_attach_seqstat(struct obd_device *dev)
849 rc = lprocfs_seq_create(dev->obd_proc_entry, "osc_stats", 0644,
850 &osc_stats_fops, dev);
852 rc = lprocfs_obd_seq_create(dev, "rpc_stats", 0644,
853 &osc_rpc_stats_fops, dev);
857 #endif /* CONFIG_PROC_FS */