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36#define DEBUG_SUBSYSTEM S_CLASS
37
38#include <linux/statfs.h>
39#include "../include/obd_cksum.h"
40#include "../include/obd_class.h"
41#include "../include/lprocfs_status.h"
42#include <linux/seq_file.h>
43#include "osc_internal.h"
44
45static int osc_active_seq_show(struct seq_file *m, void *v)
46{
47 struct obd_device *dev = m->private;
48
49 LPROCFS_CLIMP_CHECK(dev);
50 seq_printf(m, "%d\n", !dev->u.cli.cl_import->imp_deactive);
51 LPROCFS_CLIMP_EXIT(dev);
52
53 return 0;
54}
55
56static ssize_t osc_active_seq_write(struct file *file,
57 const char __user *buffer,
58 size_t count, loff_t *off)
59{
60 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
61 int val, rc;
62
63 rc = lprocfs_write_helper(buffer, count, &val);
64 if (rc)
65 return rc;
66 if (val < 0 || val > 1)
67 return -ERANGE;
68
69
70 if (dev->u.cli.cl_import->imp_deactive == val)
71 rc = ptlrpc_set_import_active(dev->u.cli.cl_import, val);
72 else
73 CDEBUG(D_CONFIG, "activate %d: ignoring repeat request\n", val);
74
75 return count;
76}
77LPROC_SEQ_FOPS(osc_active);
78
79static int osc_max_rpcs_in_flight_seq_show(struct seq_file *m, void *v)
80{
81 struct obd_device *dev = m->private;
82 struct client_obd *cli = &dev->u.cli;
83
84 client_obd_list_lock(&cli->cl_loi_list_lock);
85 seq_printf(m, "%u\n", cli->cl_max_rpcs_in_flight);
86 client_obd_list_unlock(&cli->cl_loi_list_lock);
87
88 return 0;
89}
90
91static ssize_t osc_max_rpcs_in_flight_seq_write(struct file *file,
92 const char __user *buffer,
93 size_t count, loff_t *off)
94{
95 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
96 struct client_obd *cli = &dev->u.cli;
97 struct ptlrpc_request_pool *pool = cli->cl_import->imp_rq_pool;
98 int val, rc;
99
100 rc = lprocfs_write_helper(buffer, count, &val);
101 if (rc)
102 return rc;
103
104 if (val < 1 || val > OSC_MAX_RIF_MAX)
105 return -ERANGE;
106
107 LPROCFS_CLIMP_CHECK(dev);
108 if (pool && val > cli->cl_max_rpcs_in_flight)
109 pool->prp_populate(pool, val-cli->cl_max_rpcs_in_flight);
110
111 client_obd_list_lock(&cli->cl_loi_list_lock);
112 cli->cl_max_rpcs_in_flight = val;
113 client_obd_list_unlock(&cli->cl_loi_list_lock);
114
115 LPROCFS_CLIMP_EXIT(dev);
116 return count;
117}
118LPROC_SEQ_FOPS(osc_max_rpcs_in_flight);
119
120static int osc_max_dirty_mb_seq_show(struct seq_file *m, void *v)
121{
122 struct obd_device *dev = m->private;
123 struct client_obd *cli = &dev->u.cli;
124 long val;
125 int mult;
126
127 client_obd_list_lock(&cli->cl_loi_list_lock);
128 val = cli->cl_dirty_max;
129 client_obd_list_unlock(&cli->cl_loi_list_lock);
130
131 mult = 1 << 20;
132 return lprocfs_seq_read_frac_helper(m, val, mult);
133}
134
135static ssize_t osc_max_dirty_mb_seq_write(struct file *file,
136 const char __user *buffer,
137 size_t count, loff_t *off)
138{
139 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
140 struct client_obd *cli = &dev->u.cli;
141 int pages_number, mult, rc;
142
143 mult = 1 << (20 - PAGE_CACHE_SHIFT);
144 rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
145 if (rc)
146 return rc;
147
148 if (pages_number <= 0 ||
149 pages_number > OSC_MAX_DIRTY_MB_MAX << (20 - PAGE_CACHE_SHIFT) ||
150 pages_number > totalram_pages / 4)
151 return -ERANGE;
152
153 client_obd_list_lock(&cli->cl_loi_list_lock);
154 cli->cl_dirty_max = (u32)(pages_number << PAGE_CACHE_SHIFT);
155 osc_wake_cache_waiters(cli);
156 client_obd_list_unlock(&cli->cl_loi_list_lock);
157
158 return count;
159}
160LPROC_SEQ_FOPS(osc_max_dirty_mb);
161
162static int osc_cached_mb_seq_show(struct seq_file *m, void *v)
163{
164 struct obd_device *dev = m->private;
165 struct client_obd *cli = &dev->u.cli;
166 int shift = 20 - PAGE_CACHE_SHIFT;
167
168 seq_printf(m,
169 "used_mb: %d\n"
170 "busy_cnt: %d\n",
171 (atomic_read(&cli->cl_lru_in_list) +
172 atomic_read(&cli->cl_lru_busy)) >> shift,
173 atomic_read(&cli->cl_lru_busy));
174
175 return 0;
176}
177
178
179static ssize_t osc_cached_mb_seq_write(struct file *file,
180 const char __user *buffer,
181 size_t count, loff_t *off)
182{
183 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
184 struct client_obd *cli = &dev->u.cli;
185 int pages_number, mult, rc;
186 char kernbuf[128];
187
188 if (count >= sizeof(kernbuf))
189 return -EINVAL;
190
191 if (copy_from_user(kernbuf, buffer, count))
192 return -EFAULT;
193 kernbuf[count] = 0;
194
195 mult = 1 << (20 - PAGE_CACHE_SHIFT);
196 buffer += lprocfs_find_named_value(kernbuf, "used_mb:", &count) -
197 kernbuf;
198 rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
199 if (rc)
200 return rc;
201
202 if (pages_number < 0)
203 return -ERANGE;
204
205 rc = atomic_read(&cli->cl_lru_in_list) - pages_number;
206 if (rc > 0)
207 (void)osc_lru_shrink(cli, rc);
208
209 return count;
210}
211LPROC_SEQ_FOPS(osc_cached_mb);
212
213static int osc_cur_dirty_bytes_seq_show(struct seq_file *m, void *v)
214{
215 struct obd_device *dev = m->private;
216 struct client_obd *cli = &dev->u.cli;
217
218 client_obd_list_lock(&cli->cl_loi_list_lock);
219 seq_printf(m, "%lu\n", cli->cl_dirty);
220 client_obd_list_unlock(&cli->cl_loi_list_lock);
221
222 return 0;
223}
224LPROC_SEQ_FOPS_RO(osc_cur_dirty_bytes);
225
226static int osc_cur_grant_bytes_seq_show(struct seq_file *m, void *v)
227{
228 struct obd_device *dev = m->private;
229 struct client_obd *cli = &dev->u.cli;
230
231 client_obd_list_lock(&cli->cl_loi_list_lock);
232 seq_printf(m, "%lu\n", cli->cl_avail_grant);
233 client_obd_list_unlock(&cli->cl_loi_list_lock);
234
235 return 0;
236}
237
238static ssize_t osc_cur_grant_bytes_seq_write(struct file *file,
239 const char __user *buffer,
240 size_t count, loff_t *off)
241{
242 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
243 struct client_obd *cli = &obd->u.cli;
244 int rc;
245 __u64 val;
246
247 if (obd == NULL)
248 return 0;
249
250 rc = lprocfs_write_u64_helper(buffer, count, &val);
251 if (rc)
252 return rc;
253
254
255 client_obd_list_lock(&cli->cl_loi_list_lock);
256 if (val >= cli->cl_avail_grant) {
257 client_obd_list_unlock(&cli->cl_loi_list_lock);
258 return 0;
259 }
260 client_obd_list_unlock(&cli->cl_loi_list_lock);
261
262 LPROCFS_CLIMP_CHECK(obd);
263 if (cli->cl_import->imp_state == LUSTRE_IMP_FULL)
264 rc = osc_shrink_grant_to_target(cli, val);
265 LPROCFS_CLIMP_EXIT(obd);
266 if (rc)
267 return rc;
268 return count;
269}
270LPROC_SEQ_FOPS(osc_cur_grant_bytes);
271
272static int osc_cur_lost_grant_bytes_seq_show(struct seq_file *m, void *v)
273{
274 struct obd_device *dev = m->private;
275 struct client_obd *cli = &dev->u.cli;
276
277 client_obd_list_lock(&cli->cl_loi_list_lock);
278 seq_printf(m, "%lu\n", cli->cl_lost_grant);
279 client_obd_list_unlock(&cli->cl_loi_list_lock);
280
281 return 0;
282}
283LPROC_SEQ_FOPS_RO(osc_cur_lost_grant_bytes);
284
285static int osc_grant_shrink_interval_seq_show(struct seq_file *m, void *v)
286{
287 struct obd_device *obd = m->private;
288
289 if (obd == NULL)
290 return 0;
291 seq_printf(m, "%d\n", obd->u.cli.cl_grant_shrink_interval);
292 return 0;
293}
294
295static ssize_t osc_grant_shrink_interval_seq_write(struct file *file,
296 const char __user *buffer,
297 size_t count, loff_t *off)
298{
299 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
300 int val, rc;
301
302 if (obd == NULL)
303 return 0;
304
305 rc = lprocfs_write_helper(buffer, count, &val);
306 if (rc)
307 return rc;
308
309 if (val <= 0)
310 return -ERANGE;
311
312 obd->u.cli.cl_grant_shrink_interval = val;
313
314 return count;
315}
316LPROC_SEQ_FOPS(osc_grant_shrink_interval);
317
318static int osc_checksum_seq_show(struct seq_file *m, void *v)
319{
320 struct obd_device *obd = m->private;
321
322 if (obd == NULL)
323 return 0;
324
325 seq_printf(m, "%d\n", obd->u.cli.cl_checksum ? 1 : 0);
326 return 0;
327}
328
329static ssize_t osc_checksum_seq_write(struct file *file,
330 const char __user *buffer,
331 size_t count, loff_t *off)
332{
333 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
334 int val, rc;
335
336 if (obd == NULL)
337 return 0;
338
339 rc = lprocfs_write_helper(buffer, count, &val);
340 if (rc)
341 return rc;
342
343 obd->u.cli.cl_checksum = (val ? 1 : 0);
344
345 return count;
346}
347LPROC_SEQ_FOPS(osc_checksum);
348
349static int osc_checksum_type_seq_show(struct seq_file *m, void *v)
350{
351 struct obd_device *obd = m->private;
352 int i;
353 DECLARE_CKSUM_NAME;
354
355 if (obd == NULL)
356 return 0;
357
358 for (i = 0; i < ARRAY_SIZE(cksum_name); i++) {
359 if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
360 continue;
361 if (obd->u.cli.cl_cksum_type == (1 << i))
362 seq_printf(m, "[%s] ", cksum_name[i]);
363 else
364 seq_printf(m, "%s ", cksum_name[i]);
365 }
366 seq_putc(m, '\n');
367 return 0;
368}
369
370static ssize_t osc_checksum_type_seq_write(struct file *file,
371 const char __user *buffer,
372 size_t count, loff_t *off)
373{
374 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
375 int i;
376 DECLARE_CKSUM_NAME;
377 char kernbuf[10];
378
379 if (obd == NULL)
380 return 0;
381
382 if (count > sizeof(kernbuf) - 1)
383 return -EINVAL;
384 if (copy_from_user(kernbuf, buffer, count))
385 return -EFAULT;
386 if (count > 0 && kernbuf[count - 1] == '\n')
387 kernbuf[count - 1] = '\0';
388 else
389 kernbuf[count] = '\0';
390
391 for (i = 0; i < ARRAY_SIZE(cksum_name); i++) {
392 if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
393 continue;
394 if (!strcmp(kernbuf, cksum_name[i])) {
395 obd->u.cli.cl_cksum_type = 1 << i;
396 return count;
397 }
398 }
399 return -EINVAL;
400}
401LPROC_SEQ_FOPS(osc_checksum_type);
402
403static int osc_resend_count_seq_show(struct seq_file *m, void *v)
404{
405 struct obd_device *obd = m->private;
406
407 seq_printf(m, "%u\n", atomic_read(&obd->u.cli.cl_resends));
408 return 0;
409}
410
411static ssize_t osc_resend_count_seq_write(struct file *file,
412 const char __user *buffer,
413 size_t count, loff_t *off)
414{
415 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
416 int val, rc;
417
418 rc = lprocfs_write_helper(buffer, count, &val);
419 if (rc)
420 return rc;
421
422 if (val < 0)
423 return -EINVAL;
424
425 atomic_set(&obd->u.cli.cl_resends, val);
426
427 return count;
428}
429LPROC_SEQ_FOPS(osc_resend_count);
430
431static int osc_contention_seconds_seq_show(struct seq_file *m, void *v)
432{
433 struct obd_device *obd = m->private;
434 struct osc_device *od = obd2osc_dev(obd);
435
436 seq_printf(m, "%u\n", od->od_contention_time);
437 return 0;
438}
439
440static ssize_t osc_contention_seconds_seq_write(struct file *file,
441 const char __user *buffer,
442 size_t count, loff_t *off)
443{
444 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
445 struct osc_device *od = obd2osc_dev(obd);
446
447 return lprocfs_write_helper(buffer, count, &od->od_contention_time) ?:
448 count;
449}
450LPROC_SEQ_FOPS(osc_contention_seconds);
451
452static int osc_lockless_truncate_seq_show(struct seq_file *m, void *v)
453{
454 struct obd_device *obd = m->private;
455 struct osc_device *od = obd2osc_dev(obd);
456
457 seq_printf(m, "%u\n", od->od_lockless_truncate);
458 return 0;
459}
460
461static ssize_t osc_lockless_truncate_seq_write(struct file *file,
462 const char __user *buffer,
463 size_t count, loff_t *off)
464{
465 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
466 struct osc_device *od = obd2osc_dev(obd);
467
468 return lprocfs_write_helper(buffer, count, &od->od_lockless_truncate) ?:
469 count;
470}
471LPROC_SEQ_FOPS(osc_lockless_truncate);
472
473static int osc_destroys_in_flight_seq_show(struct seq_file *m, void *v)
474{
475 struct obd_device *obd = m->private;
476
477 seq_printf(m, "%u\n", atomic_read(&obd->u.cli.cl_destroy_in_flight));
478 return 0;
479}
480LPROC_SEQ_FOPS_RO(osc_destroys_in_flight);
481
482static int osc_obd_max_pages_per_rpc_seq_show(struct seq_file *m, void *v)
483{
484 return lprocfs_obd_rd_max_pages_per_rpc(m, m->private);
485}
486
487static ssize_t osc_obd_max_pages_per_rpc_seq_write(struct file *file,
488 const char __user *buffer,
489 size_t count, loff_t *off)
490{
491 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
492 struct client_obd *cli = &dev->u.cli;
493 struct obd_connect_data *ocd = &cli->cl_import->imp_connect_data;
494 int chunk_mask, rc;
495 __u64 val;
496
497 rc = lprocfs_write_u64_helper(buffer, count, &val);
498 if (rc)
499 return rc;
500
501
502 if (val >= ONE_MB_BRW_SIZE)
503 val >>= PAGE_CACHE_SHIFT;
504
505 LPROCFS_CLIMP_CHECK(dev);
506
507 chunk_mask = ~((1 << (cli->cl_chunkbits - PAGE_CACHE_SHIFT)) - 1);
508
509 val = (val + ~chunk_mask) & chunk_mask;
510 if (val == 0 || val > ocd->ocd_brw_size >> PAGE_CACHE_SHIFT) {
511 LPROCFS_CLIMP_EXIT(dev);
512 return -ERANGE;
513 }
514 client_obd_list_lock(&cli->cl_loi_list_lock);
515 cli->cl_max_pages_per_rpc = val;
516 client_obd_list_unlock(&cli->cl_loi_list_lock);
517
518 LPROCFS_CLIMP_EXIT(dev);
519 return count;
520}
521LPROC_SEQ_FOPS(osc_obd_max_pages_per_rpc);
522
523LPROC_SEQ_FOPS_RO_TYPE(osc, uuid);
524LPROC_SEQ_FOPS_RO_TYPE(osc, connect_flags);
525LPROC_SEQ_FOPS_RO_TYPE(osc, blksize);
526LPROC_SEQ_FOPS_RO_TYPE(osc, kbytestotal);
527LPROC_SEQ_FOPS_RO_TYPE(osc, kbytesfree);
528LPROC_SEQ_FOPS_RO_TYPE(osc, kbytesavail);
529LPROC_SEQ_FOPS_RO_TYPE(osc, filestotal);
530LPROC_SEQ_FOPS_RO_TYPE(osc, filesfree);
531LPROC_SEQ_FOPS_RO_TYPE(osc, server_uuid);
532LPROC_SEQ_FOPS_RO_TYPE(osc, conn_uuid);
533LPROC_SEQ_FOPS_RO_TYPE(osc, timeouts);
534LPROC_SEQ_FOPS_RO_TYPE(osc, state);
535
536LPROC_SEQ_FOPS_WR_ONLY(osc, ping);
537
538LPROC_SEQ_FOPS_RW_TYPE(osc, import);
539LPROC_SEQ_FOPS_RW_TYPE(osc, pinger_recov);
540
541static struct lprocfs_vars lprocfs_osc_obd_vars[] = {
542 { "uuid", &osc_uuid_fops, NULL, 0 },
543 { "ping", &osc_ping_fops, NULL, 0222 },
544 { "connect_flags", &osc_connect_flags_fops, NULL, 0 },
545 { "blocksize", &osc_blksize_fops, NULL, 0 },
546 { "kbytestotal", &osc_kbytestotal_fops, NULL, 0 },
547 { "kbytesfree", &osc_kbytesfree_fops, NULL, 0 },
548 { "kbytesavail", &osc_kbytesavail_fops, NULL, 0 },
549 { "filestotal", &osc_filestotal_fops, NULL, 0 },
550 { "filesfree", &osc_filesfree_fops, NULL, 0 },
551
552 { "ost_server_uuid", &osc_server_uuid_fops, NULL, 0 },
553 { "ost_conn_uuid", &osc_conn_uuid_fops, NULL, 0 },
554 { "active", &osc_active_fops, NULL },
555 { "max_pages_per_rpc", &osc_obd_max_pages_per_rpc_fops, NULL },
556 { "max_rpcs_in_flight", &osc_max_rpcs_in_flight_fops, NULL },
557 { "destroys_in_flight", &osc_destroys_in_flight_fops, NULL, 0 },
558 { "max_dirty_mb", &osc_max_dirty_mb_fops, NULL },
559 { "osc_cached_mb", &osc_cached_mb_fops, NULL },
560 { "cur_dirty_bytes", &osc_cur_dirty_bytes_fops, NULL, 0 },
561 { "cur_grant_bytes", &osc_cur_grant_bytes_fops, NULL },
562 { "cur_lost_grant_bytes", &osc_cur_lost_grant_bytes_fops, NULL, 0},
563 { "grant_shrink_interval", &osc_grant_shrink_interval_fops, NULL },
564 { "checksums", &osc_checksum_fops, NULL },
565 { "checksum_type", &osc_checksum_type_fops, NULL },
566 { "resend_count", &osc_resend_count_fops, NULL},
567 { "timeouts", &osc_timeouts_fops, NULL, 0 },
568 { "contention_seconds", &osc_contention_seconds_fops, NULL },
569 { "lockless_truncate", &osc_lockless_truncate_fops, NULL },
570 { "import", &osc_import_fops, NULL },
571 { "state", &osc_state_fops, NULL, 0 },
572 { "pinger_recov", &osc_pinger_recov_fops, NULL },
573 { NULL }
574};
575
576LPROC_SEQ_FOPS_RO_TYPE(osc, numrefs);
577static struct lprocfs_vars lprocfs_osc_module_vars[] = {
578 { "num_refs", &osc_numrefs_fops, NULL, 0 },
579 { NULL }
580};
581
582#define pct(a, b) (b ? a * 100 / b : 0)
583
584static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v)
585{
586 struct timeval now;
587 struct obd_device *dev = seq->private;
588 struct client_obd *cli = &dev->u.cli;
589 unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
590 int i;
591
592 do_gettimeofday(&now);
593
594 client_obd_list_lock(&cli->cl_loi_list_lock);
595
596 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
597 now.tv_sec, (unsigned long)now.tv_usec);
598 seq_printf(seq, "read RPCs in flight: %d\n",
599 cli->cl_r_in_flight);
600 seq_printf(seq, "write RPCs in flight: %d\n",
601 cli->cl_w_in_flight);
602 seq_printf(seq, "pending write pages: %d\n",
603 atomic_read(&cli->cl_pending_w_pages));
604 seq_printf(seq, "pending read pages: %d\n",
605 atomic_read(&cli->cl_pending_r_pages));
606
607 seq_puts(seq, "\n\t\t\tread\t\t\twrite\n");
608 seq_puts(seq, "pages per rpc rpcs % cum % |");
609 seq_puts(seq, " rpcs % cum %\n");
610
611 read_tot = lprocfs_oh_sum(&cli->cl_read_page_hist);
612 write_tot = lprocfs_oh_sum(&cli->cl_write_page_hist);
613
614 read_cum = 0;
615 write_cum = 0;
616 for (i = 0; i < OBD_HIST_MAX; i++) {
617 unsigned long r = cli->cl_read_page_hist.oh_buckets[i];
618 unsigned long w = cli->cl_write_page_hist.oh_buckets[i];
619 read_cum += r;
620 write_cum += w;
621 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
622 1 << i, r, pct(r, read_tot),
623 pct(read_cum, read_tot), w,
624 pct(w, write_tot),
625 pct(write_cum, write_tot));
626 if (read_cum == read_tot && write_cum == write_tot)
627 break;
628 }
629
630 seq_puts(seq, "\n\t\t\tread\t\t\twrite\n");
631 seq_puts(seq, "rpcs in flight rpcs % cum % |");
632 seq_puts(seq, " rpcs % cum %\n");
633
634 read_tot = lprocfs_oh_sum(&cli->cl_read_rpc_hist);
635 write_tot = lprocfs_oh_sum(&cli->cl_write_rpc_hist);
636
637 read_cum = 0;
638 write_cum = 0;
639 for (i = 0; i < OBD_HIST_MAX; i++) {
640 unsigned long r = cli->cl_read_rpc_hist.oh_buckets[i];
641 unsigned long w = cli->cl_write_rpc_hist.oh_buckets[i];
642 read_cum += r;
643 write_cum += w;
644 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
645 i, r, pct(r, read_tot),
646 pct(read_cum, read_tot), w,
647 pct(w, write_tot),
648 pct(write_cum, write_tot));
649 if (read_cum == read_tot && write_cum == write_tot)
650 break;
651 }
652
653 seq_puts(seq, "\n\t\t\tread\t\t\twrite\n");
654 seq_puts(seq, "offset rpcs % cum % |");
655 seq_puts(seq, " rpcs % cum %\n");
656
657 read_tot = lprocfs_oh_sum(&cli->cl_read_offset_hist);
658 write_tot = lprocfs_oh_sum(&cli->cl_write_offset_hist);
659
660 read_cum = 0;
661 write_cum = 0;
662 for (i = 0; i < OBD_HIST_MAX; i++) {
663 unsigned long r = cli->cl_read_offset_hist.oh_buckets[i];
664 unsigned long w = cli->cl_write_offset_hist.oh_buckets[i];
665 read_cum += r;
666 write_cum += w;
667 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
668 (i == 0) ? 0 : 1 << (i - 1),
669 r, pct(r, read_tot), pct(read_cum, read_tot),
670 w, pct(w, write_tot), pct(write_cum, write_tot));
671 if (read_cum == read_tot && write_cum == write_tot)
672 break;
673 }
674
675 client_obd_list_unlock(&cli->cl_loi_list_lock);
676
677 return 0;
678}
679#undef pct
680
681static ssize_t osc_rpc_stats_seq_write(struct file *file,
682 const char __user *buf,
683 size_t len, loff_t *off)
684{
685 struct seq_file *seq = file->private_data;
686 struct obd_device *dev = seq->private;
687 struct client_obd *cli = &dev->u.cli;
688
689 lprocfs_oh_clear(&cli->cl_read_rpc_hist);
690 lprocfs_oh_clear(&cli->cl_write_rpc_hist);
691 lprocfs_oh_clear(&cli->cl_read_page_hist);
692 lprocfs_oh_clear(&cli->cl_write_page_hist);
693 lprocfs_oh_clear(&cli->cl_read_offset_hist);
694 lprocfs_oh_clear(&cli->cl_write_offset_hist);
695
696 return len;
697}
698
699LPROC_SEQ_FOPS(osc_rpc_stats);
700
701static int osc_stats_seq_show(struct seq_file *seq, void *v)
702{
703 struct timeval now;
704 struct obd_device *dev = seq->private;
705 struct osc_stats *stats = &obd2osc_dev(dev)->od_stats;
706
707 do_gettimeofday(&now);
708
709 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
710 now.tv_sec, (unsigned long)now.tv_usec);
711 seq_printf(seq, "lockless_write_bytes\t\t%llu\n",
712 stats->os_lockless_writes);
713 seq_printf(seq, "lockless_read_bytes\t\t%llu\n",
714 stats->os_lockless_reads);
715 seq_printf(seq, "lockless_truncate\t\t%llu\n",
716 stats->os_lockless_truncates);
717 return 0;
718}
719
720static ssize_t osc_stats_seq_write(struct file *file,
721 const char __user *buf,
722 size_t len, loff_t *off)
723{
724 struct seq_file *seq = file->private_data;
725 struct obd_device *dev = seq->private;
726 struct osc_stats *stats = &obd2osc_dev(dev)->od_stats;
727
728 memset(stats, 0, sizeof(*stats));
729 return len;
730}
731
732LPROC_SEQ_FOPS(osc_stats);
733
734int lproc_osc_attach_seqstat(struct obd_device *dev)
735{
736 int rc;
737
738 rc = lprocfs_seq_create(dev->obd_proc_entry, "osc_stats", 0644,
739 &osc_stats_fops, dev);
740 if (rc == 0)
741 rc = lprocfs_obd_seq_create(dev, "rpc_stats", 0644,
742 &osc_rpc_stats_fops, dev);
743
744 return rc;
745}
746
747void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars)
748{
749 lvars->module_vars = lprocfs_osc_module_vars;
750 lvars->obd_vars = lprocfs_osc_obd_vars;
751}
752
