1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
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_rd_active(char *page, char **start, off_t off,
48 int count, int *eof, void *data)
50 struct obd_device *dev = data;
53 LPROCFS_CLIMP_CHECK(dev);
54 rc = snprintf(page, count, "%d\n", !dev->u.cli.cl_import->imp_deactive);
55 LPROCFS_CLIMP_EXIT(dev);
59 static int osc_wr_active(struct file *file, const char *buffer,
60 unsigned long count, void *data)
62 struct obd_device *dev = data;
65 rc = lprocfs_write_helper(buffer, count, &val);
68 if (val < 0 || val > 1)
71 LPROCFS_CLIMP_CHECK(dev);
73 if (dev->u.cli.cl_import->imp_deactive == val)
74 rc = ptlrpc_set_import_active(dev->u.cli.cl_import, val);
76 CDEBUG(D_CONFIG, "activate %d: ignoring repeat request\n", val);
78 LPROCFS_CLIMP_EXIT(dev);
82 static int osc_rd_max_pages_per_rpc(char *page, char **start, off_t off,
83 int count, int *eof, void *data)
85 struct obd_device *dev = data;
86 struct client_obd *cli = &dev->u.cli;
89 client_obd_list_lock(&cli->cl_loi_list_lock);
90 rc = snprintf(page, count, "%d\n", cli->cl_max_pages_per_rpc);
91 client_obd_list_unlock(&cli->cl_loi_list_lock);
95 static int osc_wr_max_pages_per_rpc(struct file *file, const char *buffer,
96 unsigned long count, void *data)
98 struct obd_device *dev = data;
99 struct client_obd *cli = &dev->u.cli;
100 struct obd_connect_data *ocd = &cli->cl_import->imp_connect_data;
103 rc = lprocfs_write_helper(buffer, count, &val);
107 LPROCFS_CLIMP_CHECK(dev);
108 if (val < 1 || val > ocd->ocd_brw_size >> CFS_PAGE_SHIFT) {
109 LPROCFS_CLIMP_EXIT(dev);
112 client_obd_list_lock(&cli->cl_loi_list_lock);
113 cli->cl_max_pages_per_rpc = val;
114 client_obd_list_unlock(&cli->cl_loi_list_lock);
116 LPROCFS_CLIMP_EXIT(dev);
120 static int osc_rd_max_rpcs_in_flight(char *page, char **start, off_t off,
121 int count, int *eof, void *data)
123 struct obd_device *dev = data;
124 struct client_obd *cli = &dev->u.cli;
127 client_obd_list_lock(&cli->cl_loi_list_lock);
128 rc = snprintf(page, count, "%u\n", cli->cl_max_rpcs_in_flight);
129 client_obd_list_unlock(&cli->cl_loi_list_lock);
133 static int osc_wr_max_rpcs_in_flight(struct file *file, const char *buffer,
134 unsigned long count, void *data)
136 struct obd_device *dev = data;
137 struct client_obd *cli = &dev->u.cli;
138 struct ptlrpc_request_pool *pool = cli->cl_import->imp_rq_pool;
141 rc = lprocfs_write_helper(buffer, count, &val);
145 if (val < 1 || val > OSC_MAX_RIF_MAX)
148 LPROCFS_CLIMP_CHECK(dev);
149 if (pool && val > cli->cl_max_rpcs_in_flight)
150 pool->prp_populate(pool, val-cli->cl_max_rpcs_in_flight);
152 client_obd_list_lock(&cli->cl_loi_list_lock);
153 cli->cl_max_rpcs_in_flight = val;
154 client_obd_list_unlock(&cli->cl_loi_list_lock);
156 LPROCFS_CLIMP_EXIT(dev);
160 static int osc_rd_max_dirty_mb(char *page, char **start, off_t off, int count,
161 int *eof, void *data)
163 struct obd_device *dev = data;
164 struct client_obd *cli = &dev->u.cli;
168 client_obd_list_lock(&cli->cl_loi_list_lock);
169 val = cli->cl_dirty_max;
170 client_obd_list_unlock(&cli->cl_loi_list_lock);
173 return lprocfs_read_frac_helper(page, count, val, mult);
176 static int osc_wr_max_dirty_mb(struct file *file, const char *buffer,
177 unsigned long count, void *data)
179 struct obd_device *dev = data;
180 struct client_obd *cli = &dev->u.cli;
181 int pages_number, mult, rc;
183 mult = 1 << (20 - CFS_PAGE_SHIFT);
184 rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
188 if (pages_number < 0 ||
189 pages_number > OSC_MAX_DIRTY_MB_MAX << (20 - CFS_PAGE_SHIFT) ||
190 pages_number > num_physpages / 4) /* 1/4 of RAM */
193 client_obd_list_lock(&cli->cl_loi_list_lock);
194 cli->cl_dirty_max = (obd_count)(pages_number << CFS_PAGE_SHIFT);
195 osc_wake_cache_waiters(cli);
196 client_obd_list_unlock(&cli->cl_loi_list_lock);
201 static int osc_rd_cur_dirty_bytes(char *page, char **start, off_t off,
202 int count, int *eof, void *data)
204 struct obd_device *dev = data;
205 struct client_obd *cli = &dev->u.cli;
208 client_obd_list_lock(&cli->cl_loi_list_lock);
209 rc = snprintf(page, count, "%lu\n", cli->cl_dirty);
210 client_obd_list_unlock(&cli->cl_loi_list_lock);
214 static int osc_rd_cur_grant_bytes(char *page, char **start, off_t off,
215 int count, int *eof, void *data)
217 struct obd_device *dev = data;
218 struct client_obd *cli = &dev->u.cli;
221 client_obd_list_lock(&cli->cl_loi_list_lock);
222 rc = snprintf(page, count, "%lu\n", cli->cl_avail_grant);
223 client_obd_list_unlock(&cli->cl_loi_list_lock);
227 static int osc_wr_cur_grant_bytes(struct file *file, const char *buffer,
228 unsigned long count, void *data)
230 struct obd_device *obd = data;
231 struct client_obd *cli = &obd->u.cli;
238 rc = lprocfs_write_u64_helper(buffer, count, &val);
242 /* this is only for shrinking grant */
243 client_obd_list_lock(&cli->cl_loi_list_lock);
244 if (val >= cli->cl_avail_grant) {
245 client_obd_list_unlock(&cli->cl_loi_list_lock);
248 client_obd_list_unlock(&cli->cl_loi_list_lock);
250 LPROCFS_CLIMP_CHECK(obd);
251 if (cli->cl_import->imp_state == LUSTRE_IMP_FULL)
252 rc = osc_shrink_grant_to_target(cli, val);
253 LPROCFS_CLIMP_EXIT(obd);
259 static int osc_rd_grant_shrink_interval(char *page, char **start, off_t off,
260 int count, int *eof, void *data)
262 struct obd_device *obd = data;
266 return snprintf(page, count, "%d\n",
267 obd->u.cli.cl_grant_shrink_interval);
270 static int osc_wr_grant_shrink_interval(struct file *file, const char *buffer,
271 unsigned long count, void *data)
273 struct obd_device *obd = data;
279 rc = lprocfs_write_helper(buffer, count, &val);
286 obd->u.cli.cl_grant_shrink_interval = val;
291 static int osc_rd_create_count(char *page, char **start, off_t off, int count,
292 int *eof, void *data)
294 struct obd_device *obd = data;
299 return snprintf(page, count, "%d\n",
300 obd->u.cli.cl_oscc.oscc_grow_count);
304 * Set OSC creator's osc_creator::oscc_grow_count
306 * \param file proc file
307 * \param buffer buffer containing the value
308 * \param count buffer size
309 * \param data obd device
313 static int osc_wr_create_count(struct file *file, const char *buffer,
314 unsigned long count, void *data)
316 struct obd_device *obd = data;
322 rc = lprocfs_write_helper(buffer, count, &val);
326 /* The MDT ALWAYS needs to limit the precreate count to
327 * OST_MAX_PRECREATE, and the constant cannot be changed
328 * because it is a value shared between the OSC and OST
329 * that is the maximum possible number of objects that will
330 * ever be handled by MDT->OST recovery processing.
332 * If the OST ever gets a request to delete more orphans,
333 * this implies that something has gone badly on the MDT
334 * and the OST will refuse to delete so much data from the
335 * filesystem as a safety measure. */
336 if (val < OST_MIN_PRECREATE || val > OST_MAX_PRECREATE)
338 if (val > obd->u.cli.cl_oscc.oscc_max_grow_count)
341 for (i = 1; (i << 1) <= val; i <<= 1)
343 obd->u.cli.cl_oscc.oscc_grow_count = i;
349 * Read OSC creator's osc_creator::oscc_max_grow_count
351 * \param page buffer to hold the returning string
356 * proc read function parameters, please refer to kernel
357 * code fs/proc/generic.c proc_file_read()
358 * \param data obd device
360 * \retval number of characters printed.
362 static int osc_rd_max_create_count(char *page, char **start, off_t off,
363 int count, int *eof, void *data)
365 struct obd_device *obd = data;
370 return snprintf(page, count, "%d\n",
371 obd->u.cli.cl_oscc.oscc_max_grow_count);
375 * Set OSC creator's osc_creator::oscc_max_grow_count
377 * \param file proc file
378 * \param buffer buffer containing the value
379 * \param count buffer size
380 * \param data obd device
384 static int osc_wr_max_create_count(struct file *file, const char *buffer,
385 unsigned long count, void *data)
387 struct obd_device *obd = data;
393 rc = lprocfs_write_helper(buffer, count, &val);
399 if (val > OST_MAX_PRECREATE)
402 if (obd->u.cli.cl_oscc.oscc_grow_count > val)
403 obd->u.cli.cl_oscc.oscc_grow_count = val;
405 obd->u.cli.cl_oscc.oscc_max_grow_count = val;
410 static int osc_rd_prealloc_next_id(char *page, char **start, off_t off,
411 int count, int *eof, void *data)
413 struct obd_device *obd = data;
418 return snprintf(page, count, LPU64"\n",
419 obd->u.cli.cl_oscc.oscc_next_id);
422 static int osc_rd_prealloc_last_id(char *page, char **start, off_t off,
423 int count, int *eof, void *data)
425 struct obd_device *obd = data;
430 return snprintf(page, count, LPU64"\n",
431 obd->u.cli.cl_oscc.oscc_last_id);
434 static int osc_rd_checksum(char *page, char **start, off_t off, int count,
435 int *eof, void *data)
437 struct obd_device *obd = data;
442 return snprintf(page, count, "%d\n",
443 obd->u.cli.cl_checksum ? 1 : 0);
446 static int osc_wr_checksum(struct file *file, const char *buffer,
447 unsigned long count, void *data)
449 struct obd_device *obd = data;
455 rc = lprocfs_write_helper(buffer, count, &val);
459 obd->u.cli.cl_checksum = (val ? 1 : 0);
464 static int osc_rd_checksum_type(char *page, char **start, off_t off, int count,
465 int *eof, void *data)
467 struct obd_device *obd = data;
474 for (i = 0; i < ARRAY_SIZE(cksum_name) && len < count; i++) {
475 if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
477 if (obd->u.cli.cl_cksum_type == (1 << i))
478 len += snprintf(page + len, count - len, "[%s] ",
481 len += snprintf(page + len, count - len, "%s ",
485 len += sprintf(page + len, "\n");
489 static int osc_wd_checksum_type(struct file *file, const char *buffer,
490 unsigned long count, void *data)
492 struct obd_device *obd = data;
500 if (count > sizeof(kernbuf) - 1)
502 if (copy_from_user(kernbuf, buffer, count))
504 if (count > 0 && kernbuf[count - 1] == '\n')
505 kernbuf[count - 1] = '\0';
507 kernbuf[count] = '\0';
509 for (i = 0; i < ARRAY_SIZE(cksum_name); i++) {
510 if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
512 if (!strcmp(kernbuf, cksum_name[i])) {
513 obd->u.cli.cl_cksum_type = 1 << i;
520 static int osc_rd_resend_count(char *page, char **start, off_t off, int count,
521 int *eof, void *data)
523 struct obd_device *obd = data;
525 return snprintf(page, count, "%u\n", atomic_read(&obd->u.cli.cl_resends));
528 static int osc_wr_resend_count(struct file *file, const char *buffer,
529 unsigned long count, void *data)
531 struct obd_device *obd = data;
534 rc = lprocfs_write_helper(buffer, count, &val);
541 atomic_set(&obd->u.cli.cl_resends, val);
546 static int osc_rd_contention_seconds(char *page, char **start, off_t off,
547 int count, int *eof, void *data)
549 struct obd_device *obd = data;
550 struct osc_device *od = obd2osc_dev(obd);
552 return snprintf(page, count, "%u\n", od->od_contention_time);
555 static int osc_wr_contention_seconds(struct file *file, const char *buffer,
556 unsigned long count, void *data)
558 struct obd_device *obd = data;
559 struct osc_device *od = obd2osc_dev(obd);
561 return lprocfs_write_helper(buffer, count, &od->od_contention_time) ?:
565 static int osc_rd_lockless_truncate(char *page, char **start, off_t off,
566 int count, int *eof, void *data)
568 struct obd_device *obd = data;
569 struct osc_device *od = obd2osc_dev(obd);
571 return snprintf(page, count, "%u\n", od->od_lockless_truncate);
574 static int osc_wr_lockless_truncate(struct file *file, const char *buffer,
575 unsigned long count, void *data)
577 struct obd_device *obd = data;
578 struct osc_device *od = obd2osc_dev(obd);
580 return lprocfs_write_helper(buffer, count, &od->od_lockless_truncate) ?:
584 static int osc_rd_destroys_in_flight(char *page, char **start, off_t off,
585 int count, int *eof, void *data)
587 struct obd_device *obd = data;
588 return snprintf(page, count, "%u\n",
589 atomic_read(&obd->u.cli.cl_destroy_in_flight));
592 static struct lprocfs_vars lprocfs_osc_obd_vars[] = {
593 { "uuid", lprocfs_rd_uuid, 0, 0 },
594 { "ping", 0, lprocfs_wr_ping, 0, 0, 0222 },
595 { "connect_flags", lprocfs_rd_connect_flags, 0, 0 },
596 { "blocksize", lprocfs_rd_blksize, 0, 0 },
597 { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
598 { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
599 { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
600 { "filestotal", lprocfs_rd_filestotal, 0, 0 },
601 { "filesfree", lprocfs_rd_filesfree, 0, 0 },
602 //{ "filegroups", lprocfs_rd_filegroups, 0, 0 },
603 { "ost_server_uuid", lprocfs_rd_server_uuid, 0, 0 },
604 { "ost_conn_uuid", lprocfs_rd_conn_uuid, 0, 0 },
605 { "active", osc_rd_active,
607 { "max_pages_per_rpc", osc_rd_max_pages_per_rpc,
608 osc_wr_max_pages_per_rpc, 0 },
609 { "max_rpcs_in_flight", osc_rd_max_rpcs_in_flight,
610 osc_wr_max_rpcs_in_flight, 0 },
611 { "destroys_in_flight", osc_rd_destroys_in_flight, 0, 0 },
612 { "max_dirty_mb", osc_rd_max_dirty_mb, osc_wr_max_dirty_mb, 0 },
613 { "cur_dirty_bytes", osc_rd_cur_dirty_bytes, 0, 0 },
614 { "cur_grant_bytes", osc_rd_cur_grant_bytes,
615 osc_wr_cur_grant_bytes, 0 },
616 { "grant_shrink_interval", osc_rd_grant_shrink_interval,
617 osc_wr_grant_shrink_interval, 0 },
618 { "create_count", osc_rd_create_count, osc_wr_create_count, 0 },
619 { "max_create_count", osc_rd_max_create_count,
620 osc_wr_max_create_count, 0},
621 { "prealloc_next_id", osc_rd_prealloc_next_id, 0, 0 },
622 { "prealloc_last_id", osc_rd_prealloc_last_id, 0, 0 },
623 { "checksums", osc_rd_checksum, osc_wr_checksum, 0 },
624 { "checksum_type", osc_rd_checksum_type, osc_wd_checksum_type, 0 },
625 { "resend_count", osc_rd_resend_count, osc_wr_resend_count, 0},
626 { "quota_resend_count", lprocfs_rd_quota_resend_count,
627 lprocfs_wr_quota_resend_count, 0},
628 { "timeouts", lprocfs_rd_timeouts, 0, 0 },
629 { "contention_seconds", osc_rd_contention_seconds,
630 osc_wr_contention_seconds, 0 },
631 { "lockless_truncate", osc_rd_lockless_truncate,
632 osc_wr_lockless_truncate, 0 },
633 { "import", lprocfs_rd_import, 0, 0 },
634 { "state", lprocfs_rd_state, 0, 0 },
638 static struct lprocfs_vars lprocfs_osc_module_vars[] = {
639 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
643 #define pct(a,b) (b ? a * 100 / b : 0)
645 static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v)
648 struct obd_device *dev = seq->private;
649 struct client_obd *cli = &dev->u.cli;
650 unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
653 do_gettimeofday(&now);
655 client_obd_list_lock(&cli->cl_loi_list_lock);
657 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
658 now.tv_sec, now.tv_usec);
659 seq_printf(seq, "read RPCs in flight: %d\n",
660 cli->cl_r_in_flight);
661 seq_printf(seq, "write RPCs in flight: %d\n",
662 cli->cl_w_in_flight);
663 seq_printf(seq, "pending write pages: %d\n",
664 cli->cl_pending_w_pages);
665 seq_printf(seq, "pending read pages: %d\n",
666 cli->cl_pending_r_pages);
668 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
669 seq_printf(seq, "pages per rpc rpcs %% cum %% |");
670 seq_printf(seq, " rpcs %% cum %%\n");
672 read_tot = lprocfs_oh_sum(&cli->cl_read_page_hist);
673 write_tot = lprocfs_oh_sum(&cli->cl_write_page_hist);
677 for (i = 0; i < OBD_HIST_MAX; i++) {
678 unsigned long r = cli->cl_read_page_hist.oh_buckets[i];
679 unsigned long w = cli->cl_write_page_hist.oh_buckets[i];
682 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
683 1 << i, r, pct(r, read_tot),
684 pct(read_cum, read_tot), w,
686 pct(write_cum, write_tot));
687 if (read_cum == read_tot && write_cum == write_tot)
691 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
692 seq_printf(seq, "rpcs in flight rpcs %% cum %% |");
693 seq_printf(seq, " rpcs %% cum %%\n");
695 read_tot = lprocfs_oh_sum(&cli->cl_read_rpc_hist);
696 write_tot = lprocfs_oh_sum(&cli->cl_write_rpc_hist);
700 for (i = 0; i < OBD_HIST_MAX; i++) {
701 unsigned long r = cli->cl_read_rpc_hist.oh_buckets[i];
702 unsigned long w = cli->cl_write_rpc_hist.oh_buckets[i];
705 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
706 i, r, pct(r, read_tot),
707 pct(read_cum, read_tot), w,
709 pct(write_cum, write_tot));
710 if (read_cum == read_tot && write_cum == write_tot)
714 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
715 seq_printf(seq, "offset rpcs %% cum %% |");
716 seq_printf(seq, " rpcs %% cum %%\n");
718 read_tot = lprocfs_oh_sum(&cli->cl_read_offset_hist);
719 write_tot = lprocfs_oh_sum(&cli->cl_write_offset_hist);
723 for (i = 0; i < OBD_HIST_MAX; i++) {
724 unsigned long r = cli->cl_read_offset_hist.oh_buckets[i];
725 unsigned long w = cli->cl_write_offset_hist.oh_buckets[i];
728 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
729 (i == 0) ? 0 : 1 << (i - 1),
730 r, pct(r, read_tot), pct(read_cum, read_tot),
731 w, pct(w, write_tot), pct(write_cum, write_tot));
732 if (read_cum == read_tot && write_cum == write_tot)
736 client_obd_list_unlock(&cli->cl_loi_list_lock);
742 static ssize_t osc_rpc_stats_seq_write(struct file *file, const char *buf,
743 size_t len, loff_t *off)
745 struct seq_file *seq = file->private_data;
746 struct obd_device *dev = seq->private;
747 struct client_obd *cli = &dev->u.cli;
749 lprocfs_oh_clear(&cli->cl_read_rpc_hist);
750 lprocfs_oh_clear(&cli->cl_write_rpc_hist);
751 lprocfs_oh_clear(&cli->cl_read_page_hist);
752 lprocfs_oh_clear(&cli->cl_write_page_hist);
753 lprocfs_oh_clear(&cli->cl_read_offset_hist);
754 lprocfs_oh_clear(&cli->cl_write_offset_hist);
759 LPROC_SEQ_FOPS(osc_rpc_stats);
761 static int osc_stats_seq_show(struct seq_file *seq, void *v)
764 struct obd_device *dev = seq->private;
765 struct osc_stats *stats = &obd2osc_dev(dev)->od_stats;
767 do_gettimeofday(&now);
769 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
770 now.tv_sec, now.tv_usec);
771 seq_printf(seq, "lockless_write_bytes\t\t"LPU64"\n",
772 stats->os_lockless_writes);
773 seq_printf(seq, "lockless_read_bytes\t\t"LPU64"\n",
774 stats->os_lockless_reads);
775 seq_printf(seq, "lockless_truncate\t\t"LPU64"\n",
776 stats->os_lockless_truncates);
780 static ssize_t osc_stats_seq_write(struct file *file, const char *buf,
781 size_t len, loff_t *off)
783 struct seq_file *seq = file->private_data;
784 struct obd_device *dev = seq->private;
785 struct osc_stats *stats = &obd2osc_dev(dev)->od_stats;
787 memset(stats, 0, sizeof(*stats));
791 LPROC_SEQ_FOPS(osc_stats);
793 int lproc_osc_attach_seqstat(struct obd_device *dev)
797 rc = lprocfs_seq_create(dev->obd_proc_entry, "osc_stats", 0444,
798 &osc_stats_fops, dev);
800 rc = lprocfs_obd_seq_create(dev, "rpc_stats", 0444,
801 &osc_rpc_stats_fops, dev);
805 void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars)
807 lvars->module_vars = lprocfs_osc_module_vars;
808 lvars->obd_vars = lprocfs_osc_obd_vars;