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41#define DEBUG_SUBSYSTEM S_CLASS
42
43
44#include "../include/obd_class.h"
45#include "../include/lprocfs_status.h"
46#include "../include/lustre/lustre_idl.h"
47#include <linux/seq_file.h>
48#include <linux/ctype.h>
49
50static const char * const obd_connect_names[] = {
51 "read_only",
52 "lov_index",
53 "unused",
54 "write_grant",
55 "server_lock",
56 "version",
57 "request_portal",
58 "acl",
59 "xattr",
60 "create_on_write",
61 "truncate_lock",
62 "initial_transno",
63 "inode_bit_locks",
64 "join_file(obsolete)",
65 "getattr_by_fid",
66 "no_oh_for_devices",
67 "remote_client",
68 "remote_client_by_force",
69 "max_byte_per_rpc",
70 "64bit_qdata",
71 "mds_capability",
72 "oss_capability",
73 "early_lock_cancel",
74 "som",
75 "adaptive_timeouts",
76 "lru_resize",
77 "mds_mds_connection",
78 "real_conn",
79 "change_qunit_size",
80 "alt_checksum_algorithm",
81 "fid_is_enabled",
82 "version_recovery",
83 "pools",
84 "grant_shrink",
85 "skip_orphan",
86 "large_ea",
87 "full20",
88 "layout_lock",
89 "64bithash",
90 "object_max_bytes",
91 "imp_recov",
92 "jobstats",
93 "umask",
94 "einprogress",
95 "grant_param",
96 "flock_owner",
97 "lvb_type",
98 "nanoseconds_times",
99 "lightweight_conn",
100 "short_io",
101 "pingless",
102 "flock_deadlock",
103 "disp_stripe",
104 "unknown",
105 NULL
106};
107
108int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep)
109{
110 __u64 mask = 1;
111 int i, ret = 0;
112
113 for (i = 0; obd_connect_names[i] != NULL; i++, mask <<= 1) {
114 if (flags & mask)
115 ret += snprintf(page + ret, count - ret, "%s%s",
116 ret ? sep : "", obd_connect_names[i]);
117 }
118 if (flags & ~(mask - 1))
119 ret += snprintf(page + ret, count - ret,
120 "%sunknown flags %#llx",
121 ret ? sep : "", flags & ~(mask - 1));
122 return ret;
123}
124EXPORT_SYMBOL(obd_connect_flags2str);
125
126int lprocfs_read_frac_helper(char *buffer, unsigned long count, long val,
127 int mult)
128{
129 long decimal_val, frac_val;
130 int prtn;
131
132 if (count < 10)
133 return -EINVAL;
134
135 decimal_val = val / mult;
136 prtn = snprintf(buffer, count, "%ld", decimal_val);
137 frac_val = val % mult;
138
139 if (prtn < (count - 4) && frac_val > 0) {
140 long temp_frac;
141 int i, temp_mult = 1, frac_bits = 0;
142
143 temp_frac = frac_val * 10;
144 buffer[prtn++] = '.';
145 while (frac_bits < 2 && (temp_frac / mult) < 1) {
146
147 buffer[prtn++] = '0';
148 temp_frac *= 10;
149 frac_bits++;
150 }
151
152
153
154
155
156
157
158
159 for (i = 0; i < (5 - prtn); i++)
160 temp_mult *= 10;
161
162 frac_bits = min((int)count - prtn, 3 - frac_bits);
163 prtn += snprintf(buffer + prtn, frac_bits, "%ld",
164 frac_val * temp_mult / mult);
165
166 prtn--;
167 while (buffer[prtn] < '1' || buffer[prtn] > '9') {
168 prtn--;
169 if (buffer[prtn] == '.') {
170 prtn--;
171 break;
172 }
173 }
174 prtn++;
175 }
176 buffer[prtn++] = '\n';
177 return prtn;
178}
179EXPORT_SYMBOL(lprocfs_read_frac_helper);
180
181int lprocfs_write_frac_helper(const char __user *buffer, unsigned long count,
182 int *val, int mult)
183{
184 char kernbuf[20], *end, *pbuf;
185
186 if (count > (sizeof(kernbuf) - 1))
187 return -EINVAL;
188
189 if (copy_from_user(kernbuf, buffer, count))
190 return -EFAULT;
191
192 kernbuf[count] = '\0';
193 pbuf = kernbuf;
194 if (*pbuf == '-') {
195 mult = -mult;
196 pbuf++;
197 }
198
199 *val = (int)simple_strtoul(pbuf, &end, 10) * mult;
200 if (pbuf == end)
201 return -EINVAL;
202
203 if (end != NULL && *end == '.') {
204 int temp_val, pow = 1;
205 int i;
206
207 pbuf = end + 1;
208 if (strlen(pbuf) > 5)
209 pbuf[5] = '\0';
210
211 temp_val = (int)simple_strtoul(pbuf, &end, 10) * mult;
212
213 if (pbuf < end) {
214 for (i = 0; i < (end - pbuf); i++)
215 pow *= 10;
216
217 *val += temp_val / pow;
218 }
219 }
220 return 0;
221}
222EXPORT_SYMBOL(lprocfs_write_frac_helper);
223
224#if defined (CONFIG_PROC_FS)
225
226static int lprocfs_no_percpu_stats;
227module_param(lprocfs_no_percpu_stats, int, 0644);
228MODULE_PARM_DESC(lprocfs_no_percpu_stats, "Do not alloc percpu data for lprocfs stats");
229
230#define MAX_STRING_SIZE 128
231
232int lprocfs_single_release(struct inode *inode, struct file *file)
233{
234 return single_release(inode, file);
235}
236EXPORT_SYMBOL(lprocfs_single_release);
237
238int lprocfs_seq_release(struct inode *inode, struct file *file)
239{
240 return seq_release(inode, file);
241}
242EXPORT_SYMBOL(lprocfs_seq_release);
243
244
245
246struct proc_dir_entry *lprocfs_add_simple(struct proc_dir_entry *root,
247 char *name, void *data,
248 struct file_operations *fops)
249{
250 struct proc_dir_entry *proc;
251 umode_t mode = 0;
252
253 if (root == NULL || name == NULL || fops == NULL)
254 return ERR_PTR(-EINVAL);
255
256 if (fops->read)
257 mode = 0444;
258 if (fops->write)
259 mode |= 0200;
260 proc = proc_create_data(name, mode, root, fops, data);
261 if (!proc) {
262 CERROR("LprocFS: No memory to create /proc entry %s", name);
263 return ERR_PTR(-ENOMEM);
264 }
265 return proc;
266}
267EXPORT_SYMBOL(lprocfs_add_simple);
268
269struct proc_dir_entry *lprocfs_add_symlink(const char *name,
270 struct proc_dir_entry *parent, const char *format, ...)
271{
272 struct proc_dir_entry *entry;
273 char *dest;
274 va_list ap;
275
276 if (parent == NULL || format == NULL)
277 return NULL;
278
279 OBD_ALLOC_WAIT(dest, MAX_STRING_SIZE + 1);
280 if (dest == NULL)
281 return NULL;
282
283 va_start(ap, format);
284 vsnprintf(dest, MAX_STRING_SIZE, format, ap);
285 va_end(ap);
286
287 entry = proc_symlink(name, parent, dest);
288 if (entry == NULL)
289 CERROR("LprocFS: Could not create symbolic link from %s to %s",
290 name, dest);
291
292 OBD_FREE(dest, MAX_STRING_SIZE + 1);
293 return entry;
294}
295EXPORT_SYMBOL(lprocfs_add_symlink);
296
297static struct file_operations lprocfs_generic_fops = { };
298
299
300
301
302
303
304
305
306
307
308
309
310int lprocfs_add_vars(struct proc_dir_entry *root, struct lprocfs_vars *list,
311 void *data)
312{
313 if (root == NULL || list == NULL)
314 return -EINVAL;
315
316 while (list->name != NULL) {
317 struct proc_dir_entry *proc;
318 umode_t mode = 0;
319
320 if (list->proc_mode != 0000) {
321 mode = list->proc_mode;
322 } else if (list->fops) {
323 if (list->fops->read)
324 mode = 0444;
325 if (list->fops->write)
326 mode |= 0200;
327 }
328 proc = proc_create_data(list->name, mode, root,
329 list->fops ?: &lprocfs_generic_fops,
330 list->data ?: data);
331 if (proc == NULL)
332 return -ENOMEM;
333 list++;
334 }
335 return 0;
336}
337EXPORT_SYMBOL(lprocfs_add_vars);
338
339void lprocfs_remove(struct proc_dir_entry **rooth)
340{
341 proc_remove(*rooth);
342 *rooth = NULL;
343}
344EXPORT_SYMBOL(lprocfs_remove);
345
346void lprocfs_remove_proc_entry(const char *name, struct proc_dir_entry *parent)
347{
348 LASSERT(parent != NULL);
349 remove_proc_entry(name, parent);
350}
351EXPORT_SYMBOL(lprocfs_remove_proc_entry);
352
353struct proc_dir_entry *lprocfs_register(const char *name,
354 struct proc_dir_entry *parent,
355 struct lprocfs_vars *list, void *data)
356{
357 struct proc_dir_entry *entry;
358
359 entry = proc_mkdir(name, parent);
360 if (entry == NULL) {
361 entry = ERR_PTR(-ENOMEM);
362 goto out;
363 }
364
365 if (list != NULL) {
366 int rc = lprocfs_add_vars(entry, list, data);
367 if (rc != 0) {
368 lprocfs_remove(&entry);
369 entry = ERR_PTR(rc);
370 }
371 }
372out:
373 return entry;
374}
375EXPORT_SYMBOL(lprocfs_register);
376
377
378int lprocfs_rd_uint(struct seq_file *m, void *data)
379{
380 seq_printf(m, "%u\n", *(unsigned int *)data);
381 return 0;
382}
383EXPORT_SYMBOL(lprocfs_rd_uint);
384
385int lprocfs_wr_uint(struct file *file, const char __user *buffer,
386 unsigned long count, void *data)
387{
388 unsigned *p = data;
389 char dummy[MAX_STRING_SIZE + 1], *end;
390 unsigned long tmp;
391
392 dummy[MAX_STRING_SIZE] = '\0';
393 if (copy_from_user(dummy, buffer, MAX_STRING_SIZE))
394 return -EFAULT;
395
396 tmp = simple_strtoul(dummy, &end, 0);
397 if (dummy == end)
398 return -EINVAL;
399
400 *p = (unsigned int)tmp;
401 return count;
402}
403EXPORT_SYMBOL(lprocfs_wr_uint);
404
405int lprocfs_rd_u64(struct seq_file *m, void *data)
406{
407 seq_printf(m, "%llu\n", *(__u64 *)data);
408 return 0;
409}
410EXPORT_SYMBOL(lprocfs_rd_u64);
411
412int lprocfs_rd_atomic(struct seq_file *m, void *data)
413{
414 atomic_t *atom = data;
415 LASSERT(atom != NULL);
416 seq_printf(m, "%d\n", atomic_read(atom));
417 return 0;
418}
419EXPORT_SYMBOL(lprocfs_rd_atomic);
420
421int lprocfs_wr_atomic(struct file *file, const char __user *buffer,
422 unsigned long count, void *data)
423{
424 atomic_t *atm = data;
425 int val = 0;
426 int rc;
427
428 rc = lprocfs_write_helper(buffer, count, &val);
429 if (rc < 0)
430 return rc;
431
432 if (val <= 0)
433 return -ERANGE;
434
435 atomic_set(atm, val);
436 return count;
437}
438EXPORT_SYMBOL(lprocfs_wr_atomic);
439
440int lprocfs_rd_uuid(struct seq_file *m, void *data)
441{
442 struct obd_device *obd = data;
443
444 LASSERT(obd != NULL);
445 seq_printf(m, "%s\n", obd->obd_uuid.uuid);
446 return 0;
447}
448EXPORT_SYMBOL(lprocfs_rd_uuid);
449
450int lprocfs_rd_name(struct seq_file *m, void *data)
451{
452 struct obd_device *dev = data;
453
454 LASSERT(dev != NULL);
455 seq_printf(m, "%s\n", dev->obd_name);
456 return 0;
457}
458EXPORT_SYMBOL(lprocfs_rd_name);
459
460int lprocfs_rd_blksize(struct seq_file *m, void *data)
461{
462 struct obd_device *obd = data;
463 struct obd_statfs osfs;
464 int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
465 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
466 OBD_STATFS_NODELAY);
467 if (!rc)
468 seq_printf(m, "%u\n", osfs.os_bsize);
469
470 return rc;
471}
472EXPORT_SYMBOL(lprocfs_rd_blksize);
473
474int lprocfs_rd_kbytestotal(struct seq_file *m, void *data)
475{
476 struct obd_device *obd = data;
477 struct obd_statfs osfs;
478 int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
479 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
480 OBD_STATFS_NODELAY);
481 if (!rc) {
482 __u32 blk_size = osfs.os_bsize >> 10;
483 __u64 result = osfs.os_blocks;
484
485 while (blk_size >>= 1)
486 result <<= 1;
487
488 seq_printf(m, "%llu\n", result);
489 }
490
491 return rc;
492}
493EXPORT_SYMBOL(lprocfs_rd_kbytestotal);
494
495int lprocfs_rd_kbytesfree(struct seq_file *m, void *data)
496{
497 struct obd_device *obd = data;
498 struct obd_statfs osfs;
499 int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
500 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
501 OBD_STATFS_NODELAY);
502 if (!rc) {
503 __u32 blk_size = osfs.os_bsize >> 10;
504 __u64 result = osfs.os_bfree;
505
506 while (blk_size >>= 1)
507 result <<= 1;
508
509 seq_printf(m, "%llu\n", result);
510 }
511
512 return rc;
513}
514EXPORT_SYMBOL(lprocfs_rd_kbytesfree);
515
516int lprocfs_rd_kbytesavail(struct seq_file *m, void *data)
517{
518 struct obd_device *obd = data;
519 struct obd_statfs osfs;
520 int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
521 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
522 OBD_STATFS_NODELAY);
523 if (!rc) {
524 __u32 blk_size = osfs.os_bsize >> 10;
525 __u64 result = osfs.os_bavail;
526
527 while (blk_size >>= 1)
528 result <<= 1;
529
530 seq_printf(m, "%llu\n", result);
531 }
532
533 return rc;
534}
535EXPORT_SYMBOL(lprocfs_rd_kbytesavail);
536
537int lprocfs_rd_filestotal(struct seq_file *m, void *data)
538{
539 struct obd_device *obd = data;
540 struct obd_statfs osfs;
541 int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
542 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
543 OBD_STATFS_NODELAY);
544 if (!rc)
545 seq_printf(m, "%llu\n", osfs.os_files);
546
547 return rc;
548}
549EXPORT_SYMBOL(lprocfs_rd_filestotal);
550
551int lprocfs_rd_filesfree(struct seq_file *m, void *data)
552{
553 struct obd_device *obd = data;
554 struct obd_statfs osfs;
555 int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
556 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
557 OBD_STATFS_NODELAY);
558 if (!rc)
559 seq_printf(m, "%llu\n", osfs.os_ffree);
560
561 return rc;
562}
563EXPORT_SYMBOL(lprocfs_rd_filesfree);
564
565int lprocfs_rd_server_uuid(struct seq_file *m, void *data)
566{
567 struct obd_device *obd = data;
568 struct obd_import *imp;
569 char *imp_state_name = NULL;
570
571 LASSERT(obd != NULL);
572 LPROCFS_CLIMP_CHECK(obd);
573 imp = obd->u.cli.cl_import;
574 imp_state_name = ptlrpc_import_state_name(imp->imp_state);
575 seq_printf(m, "%s\t%s%s\n",
576 obd2cli_tgt(obd), imp_state_name,
577 imp->imp_deactive ? "\tDEACTIVATED" : "");
578
579 LPROCFS_CLIMP_EXIT(obd);
580
581 return 0;
582}
583EXPORT_SYMBOL(lprocfs_rd_server_uuid);
584
585int lprocfs_rd_conn_uuid(struct seq_file *m, void *data)
586{
587 struct obd_device *obd = data;
588 struct ptlrpc_connection *conn;
589
590 LASSERT(obd != NULL);
591
592 LPROCFS_CLIMP_CHECK(obd);
593 conn = obd->u.cli.cl_import->imp_connection;
594 if (conn && obd->u.cli.cl_import)
595 seq_printf(m, "%s\n", conn->c_remote_uuid.uuid);
596 else
597 seq_puts(m, "<none>\n");
598
599 LPROCFS_CLIMP_EXIT(obd);
600
601 return 0;
602}
603EXPORT_SYMBOL(lprocfs_rd_conn_uuid);
604
605
606void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
607 struct lprocfs_counter *cnt)
608{
609 unsigned int num_entry;
610 struct lprocfs_counter *percpu_cntr;
611 int i;
612 unsigned long flags = 0;
613
614 memset(cnt, 0, sizeof(*cnt));
615
616 if (stats == NULL) {
617
618 cnt->lc_count = 1;
619 return;
620 }
621
622 cnt->lc_min = LC_MIN_INIT;
623
624 num_entry = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
625
626 for (i = 0; i < num_entry; i++) {
627 if (stats->ls_percpu[i] == NULL)
628 continue;
629 percpu_cntr = lprocfs_stats_counter_get(stats, i, idx);
630
631 cnt->lc_count += percpu_cntr->lc_count;
632 cnt->lc_sum += percpu_cntr->lc_sum;
633 if (percpu_cntr->lc_min < cnt->lc_min)
634 cnt->lc_min = percpu_cntr->lc_min;
635 if (percpu_cntr->lc_max > cnt->lc_max)
636 cnt->lc_max = percpu_cntr->lc_max;
637 cnt->lc_sumsquare += percpu_cntr->lc_sumsquare;
638 }
639
640 lprocfs_stats_unlock(stats, LPROCFS_GET_NUM_CPU, &flags);
641}
642EXPORT_SYMBOL(lprocfs_stats_collect);
643
644
645
646
647#define flag2str(flag, first) \
648 do { \
649 if (imp->imp_##flag) \
650 seq_printf(m, "%s" #flag, first ? "" : ", "); \
651 } while (0)
652static int obd_import_flags2str(struct obd_import *imp, struct seq_file *m)
653{
654 bool first = true;
655
656 if (imp->imp_obd->obd_no_recov) {
657 seq_printf(m, "no_recov");
658 first = false;
659 }
660
661 flag2str(invalid, first);
662 first = false;
663 flag2str(deactive, first);
664 flag2str(replayable, first);
665 flag2str(pingable, first);
666 return 0;
667}
668#undef flags2str
669
670static void obd_connect_seq_flags2str(struct seq_file *m, __u64 flags, char *sep)
671{
672 __u64 mask = 1;
673 int i;
674 bool first = true;
675
676 for (i = 0; obd_connect_names[i] != NULL; i++, mask <<= 1) {
677 if (flags & mask) {
678 seq_printf(m, "%s%s",
679 first ? sep : "", obd_connect_names[i]);
680 first = false;
681 }
682 }
683 if (flags & ~(mask - 1))
684 seq_printf(m, "%sunknown flags %#llx",
685 first ? sep : "", flags & ~(mask - 1));
686}
687
688int lprocfs_rd_import(struct seq_file *m, void *data)
689{
690 struct lprocfs_counter ret;
691 struct lprocfs_counter_header *header;
692 struct obd_device *obd = (struct obd_device *)data;
693 struct obd_import *imp;
694 struct obd_import_conn *conn;
695 int j;
696 int k;
697 int rw = 0;
698
699 LASSERT(obd != NULL);
700 LPROCFS_CLIMP_CHECK(obd);
701 imp = obd->u.cli.cl_import;
702
703 seq_printf(m,
704 "import:\n"
705 " name: %s\n"
706 " target: %s\n"
707 " state: %s\n"
708 " instance: %u\n"
709 " connect_flags: [",
710 obd->obd_name,
711 obd2cli_tgt(obd),
712 ptlrpc_import_state_name(imp->imp_state),
713 imp->imp_connect_data.ocd_instance);
714 obd_connect_seq_flags2str(m, imp->imp_connect_data.ocd_connect_flags, ", ");
715 seq_printf(m,
716 "]\n"
717 " import_flags: [");
718 obd_import_flags2str(imp, m);
719
720 seq_printf(m,
721 "]\n"
722 " connection:\n"
723 " failover_nids: [");
724 spin_lock(&imp->imp_lock);
725 j = 0;
726 list_for_each_entry(conn, &imp->imp_conn_list, oic_item) {
727 seq_printf(m, "%s%s", j ? ", " : "",
728 libcfs_nid2str(conn->oic_conn->c_peer.nid));
729 j++;
730 }
731 seq_printf(m,
732 "]\n"
733 " current_connection: %s\n"
734 " connection_attempts: %u\n"
735 " generation: %u\n"
736 " in-progress_invalidations: %u\n",
737 imp->imp_connection == NULL ? "<none>" :
738 libcfs_nid2str(imp->imp_connection->c_peer.nid),
739 imp->imp_conn_cnt,
740 imp->imp_generation,
741 atomic_read(&imp->imp_inval_count));
742 spin_unlock(&imp->imp_lock);
743
744 if (obd->obd_svc_stats == NULL)
745 goto out_climp;
746
747 header = &obd->obd_svc_stats->ls_cnt_header[PTLRPC_REQWAIT_CNTR];
748 lprocfs_stats_collect(obd->obd_svc_stats, PTLRPC_REQWAIT_CNTR, &ret);
749 if (ret.lc_count != 0) {
750
751 __u64 sum = ret.lc_sum;
752 do_div(sum, ret.lc_count);
753 ret.lc_sum = sum;
754 } else
755 ret.lc_sum = 0;
756 seq_printf(m,
757 " rpcs:\n"
758 " inflight: %u\n"
759 " unregistering: %u\n"
760 " timeouts: %u\n"
761 " avg_waittime: %llu %s\n",
762 atomic_read(&imp->imp_inflight),
763 atomic_read(&imp->imp_unregistering),
764 atomic_read(&imp->imp_timeouts),
765 ret.lc_sum, header->lc_units);
766
767 k = 0;
768 for (j = 0; j < IMP_AT_MAX_PORTALS; j++) {
769 if (imp->imp_at.iat_portal[j] == 0)
770 break;
771 k = max_t(unsigned int, k,
772 at_get(&imp->imp_at.iat_service_estimate[j]));
773 }
774 seq_printf(m,
775 " service_estimates:\n"
776 " services: %u sec\n"
777 " network: %u sec\n",
778 k,
779 at_get(&imp->imp_at.iat_net_latency));
780
781 seq_printf(m,
782 " transactions:\n"
783 " last_replay: %llu\n"
784 " peer_committed: %llu\n"
785 " last_checked: %llu\n",
786 imp->imp_last_replay_transno,
787 imp->imp_peer_committed_transno,
788 imp->imp_last_transno_checked);
789
790
791 for (rw = 0; rw <= 1; rw++) {
792 lprocfs_stats_collect(obd->obd_svc_stats,
793 PTLRPC_LAST_CNTR + BRW_READ_BYTES + rw,
794 &ret);
795 if (ret.lc_sum > 0 && ret.lc_count > 0) {
796
797 __u64 sum = ret.lc_sum;
798 do_div(sum, ret.lc_count);
799 ret.lc_sum = sum;
800 seq_printf(m,
801 " %s_data_averages:\n"
802 " bytes_per_rpc: %llu\n",
803 rw ? "write" : "read",
804 ret.lc_sum);
805 }
806 k = (int)ret.lc_sum;
807 j = opcode_offset(OST_READ + rw) + EXTRA_MAX_OPCODES;
808 header = &obd->obd_svc_stats->ls_cnt_header[j];
809 lprocfs_stats_collect(obd->obd_svc_stats, j, &ret);
810 if (ret.lc_sum > 0 && ret.lc_count != 0) {
811
812 __u64 sum = ret.lc_sum;
813 do_div(sum, ret.lc_count);
814 ret.lc_sum = sum;
815 seq_printf(m,
816 " %s_per_rpc: %llu\n",
817 header->lc_units, ret.lc_sum);
818 j = (int)ret.lc_sum;
819 if (j > 0)
820 seq_printf(m,
821 " MB_per_sec: %u.%.02u\n",
822 k / j, (100 * k / j) % 100);
823 }
824 }
825
826out_climp:
827 LPROCFS_CLIMP_EXIT(obd);
828 return 0;
829}
830EXPORT_SYMBOL(lprocfs_rd_import);
831
832int lprocfs_rd_state(struct seq_file *m, void *data)
833{
834 struct obd_device *obd = (struct obd_device *)data;
835 struct obd_import *imp;
836 int j, k;
837
838 LASSERT(obd != NULL);
839 LPROCFS_CLIMP_CHECK(obd);
840 imp = obd->u.cli.cl_import;
841
842 seq_printf(m, "current_state: %s\n",
843 ptlrpc_import_state_name(imp->imp_state));
844 seq_printf(m, "state_history:\n");
845 k = imp->imp_state_hist_idx;
846 for (j = 0; j < IMP_STATE_HIST_LEN; j++) {
847 struct import_state_hist *ish =
848 &imp->imp_state_hist[(k + j) % IMP_STATE_HIST_LEN];
849 if (ish->ish_state == 0)
850 continue;
851 seq_printf(m, " - ["CFS_TIME_T", %s]\n",
852 ish->ish_time,
853 ptlrpc_import_state_name(ish->ish_state));
854 }
855
856 LPROCFS_CLIMP_EXIT(obd);
857 return 0;
858}
859EXPORT_SYMBOL(lprocfs_rd_state);
860
861int lprocfs_at_hist_helper(struct seq_file *m, struct adaptive_timeout *at)
862{
863 int i;
864 for (i = 0; i < AT_BINS; i++)
865 seq_printf(m, "%3u ", at->at_hist[i]);
866 seq_printf(m, "\n");
867 return 0;
868}
869EXPORT_SYMBOL(lprocfs_at_hist_helper);
870
871
872int lprocfs_rd_timeouts(struct seq_file *m, void *data)
873{
874 struct obd_device *obd = (struct obd_device *)data;
875 struct obd_import *imp;
876 unsigned int cur, worst;
877 time_t now, worstt;
878 struct dhms ts;
879 int i;
880
881 LASSERT(obd != NULL);
882 LPROCFS_CLIMP_CHECK(obd);
883 imp = obd->u.cli.cl_import;
884
885 now = get_seconds();
886
887
888 s2dhms(&ts, now - imp->imp_last_reply_time);
889 seq_printf(m, "%-10s : %ld, "DHMS_FMT" ago\n",
890 "last reply", imp->imp_last_reply_time, DHMS_VARS(&ts));
891
892 cur = at_get(&imp->imp_at.iat_net_latency);
893 worst = imp->imp_at.iat_net_latency.at_worst_ever;
894 worstt = imp->imp_at.iat_net_latency.at_worst_time;
895 s2dhms(&ts, now - worstt);
896 seq_printf(m, "%-10s : cur %3u worst %3u (at %ld, "DHMS_FMT" ago) ",
897 "network", cur, worst, worstt, DHMS_VARS(&ts));
898 lprocfs_at_hist_helper(m, &imp->imp_at.iat_net_latency);
899
900 for (i = 0; i < IMP_AT_MAX_PORTALS; i++) {
901 if (imp->imp_at.iat_portal[i] == 0)
902 break;
903 cur = at_get(&imp->imp_at.iat_service_estimate[i]);
904 worst = imp->imp_at.iat_service_estimate[i].at_worst_ever;
905 worstt = imp->imp_at.iat_service_estimate[i].at_worst_time;
906 s2dhms(&ts, now - worstt);
907 seq_printf(m, "portal %-2d : cur %3u worst %3u (at %ld, "
908 DHMS_FMT" ago) ", imp->imp_at.iat_portal[i],
909 cur, worst, worstt, DHMS_VARS(&ts));
910 lprocfs_at_hist_helper(m, &imp->imp_at.iat_service_estimate[i]);
911 }
912
913 LPROCFS_CLIMP_EXIT(obd);
914 return 0;
915}
916EXPORT_SYMBOL(lprocfs_rd_timeouts);
917
918int lprocfs_rd_connect_flags(struct seq_file *m, void *data)
919{
920 struct obd_device *obd = data;
921 __u64 flags;
922
923 LPROCFS_CLIMP_CHECK(obd);
924 flags = obd->u.cli.cl_import->imp_connect_data.ocd_connect_flags;
925 seq_printf(m, "flags=%#llx\n", flags);
926 obd_connect_seq_flags2str(m, flags, "\n");
927 seq_printf(m, "\n");
928 LPROCFS_CLIMP_EXIT(obd);
929 return 0;
930}
931EXPORT_SYMBOL(lprocfs_rd_connect_flags);
932
933int lprocfs_rd_num_exports(struct seq_file *m, void *data)
934{
935 struct obd_device *obd = data;
936
937 LASSERT(obd != NULL);
938 seq_printf(m, "%u\n", obd->obd_num_exports);
939 return 0;
940}
941EXPORT_SYMBOL(lprocfs_rd_num_exports);
942
943int lprocfs_rd_numrefs(struct seq_file *m, void *data)
944{
945 struct obd_type *class = (struct obd_type *) data;
946
947 LASSERT(class != NULL);
948 seq_printf(m, "%d\n", class->typ_refcnt);
949 return 0;
950}
951EXPORT_SYMBOL(lprocfs_rd_numrefs);
952
953int lprocfs_obd_setup(struct obd_device *obd, struct lprocfs_vars *list)
954{
955 int rc = 0;
956
957 LASSERT(obd != NULL);
958 LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
959 LASSERT(obd->obd_type->typ_procroot != NULL);
960
961 obd->obd_proc_entry = lprocfs_register(obd->obd_name,
962 obd->obd_type->typ_procroot,
963 list, obd);
964 if (IS_ERR(obd->obd_proc_entry)) {
965 rc = PTR_ERR(obd->obd_proc_entry);
966 CERROR("error %d setting up lprocfs for %s\n",
967 rc, obd->obd_name);
968 obd->obd_proc_entry = NULL;
969 }
970 return rc;
971}
972EXPORT_SYMBOL(lprocfs_obd_setup);
973
974int lprocfs_obd_cleanup(struct obd_device *obd)
975{
976 if (!obd)
977 return -EINVAL;
978 if (obd->obd_proc_exports_entry) {
979
980 lprocfs_remove(&obd->obd_proc_exports_entry);
981 obd->obd_proc_exports_entry = NULL;
982 }
983 if (obd->obd_proc_entry) {
984 lprocfs_remove(&obd->obd_proc_entry);
985 obd->obd_proc_entry = NULL;
986 }
987 return 0;
988}
989EXPORT_SYMBOL(lprocfs_obd_cleanup);
990
991static void lprocfs_free_client_stats(struct nid_stat *client_stat)
992{
993 CDEBUG(D_CONFIG, "stat %p - data %p/%p\n", client_stat,
994 client_stat->nid_proc, client_stat->nid_stats);
995
996 LASSERTF(atomic_read(&client_stat->nid_exp_ref_count) == 0,
997 "nid %s:count %d\n", libcfs_nid2str(client_stat->nid),
998 atomic_read(&client_stat->nid_exp_ref_count));
999
1000 if (client_stat->nid_proc)
1001 lprocfs_remove(&client_stat->nid_proc);
1002
1003 if (client_stat->nid_stats)
1004 lprocfs_free_stats(&client_stat->nid_stats);
1005
1006 if (client_stat->nid_ldlm_stats)
1007 lprocfs_free_stats(&client_stat->nid_ldlm_stats);
1008
1009 OBD_FREE_PTR(client_stat);
1010 return;
1011
1012}
1013
1014void lprocfs_free_per_client_stats(struct obd_device *obd)
1015{
1016 struct cfs_hash *hash = obd->obd_nid_stats_hash;
1017 struct nid_stat *stat;
1018
1019
1020
1021 while (!list_empty(&obd->obd_nid_stats)) {
1022 stat = list_entry(obd->obd_nid_stats.next,
1023 struct nid_stat, nid_list);
1024 list_del_init(&stat->nid_list);
1025 cfs_hash_del(hash, &stat->nid, &stat->nid_hash);
1026 lprocfs_free_client_stats(stat);
1027 }
1028}
1029EXPORT_SYMBOL(lprocfs_free_per_client_stats);
1030
1031int lprocfs_stats_alloc_one(struct lprocfs_stats *stats, unsigned int cpuid)
1032{
1033 struct lprocfs_counter *cntr;
1034 unsigned int percpusize;
1035 int rc = -ENOMEM;
1036 unsigned long flags = 0;
1037 int i;
1038
1039 LASSERT(stats->ls_percpu[cpuid] == NULL);
1040 LASSERT((stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) == 0);
1041
1042 percpusize = lprocfs_stats_counter_size(stats);
1043 LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[cpuid], percpusize);
1044 if (stats->ls_percpu[cpuid] != NULL) {
1045 rc = 0;
1046 if (unlikely(stats->ls_biggest_alloc_num <= cpuid)) {
1047 if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
1048 spin_lock_irqsave(&stats->ls_lock, flags);
1049 else
1050 spin_lock(&stats->ls_lock);
1051 if (stats->ls_biggest_alloc_num <= cpuid)
1052 stats->ls_biggest_alloc_num = cpuid + 1;
1053 if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
1054 spin_unlock_irqrestore(&stats->ls_lock, flags);
1055 else
1056 spin_unlock(&stats->ls_lock);
1057 }
1058
1059 for (i = 0; i < stats->ls_num; ++i) {
1060 cntr = lprocfs_stats_counter_get(stats, cpuid, i);
1061 cntr->lc_min = LC_MIN_INIT;
1062 }
1063 }
1064 return rc;
1065}
1066EXPORT_SYMBOL(lprocfs_stats_alloc_one);
1067
1068struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num,
1069 enum lprocfs_stats_flags flags)
1070{
1071 struct lprocfs_stats *stats;
1072 unsigned int num_entry;
1073 unsigned int percpusize = 0;
1074 int i;
1075
1076 if (num == 0)
1077 return NULL;
1078
1079 if (lprocfs_no_percpu_stats != 0)
1080 flags |= LPROCFS_STATS_FLAG_NOPERCPU;
1081
1082 if (flags & LPROCFS_STATS_FLAG_NOPERCPU)
1083 num_entry = 1;
1084 else
1085 num_entry = num_possible_cpus();
1086
1087
1088 LIBCFS_ALLOC(stats, offsetof(typeof(*stats), ls_percpu[num_entry]));
1089 if (stats == NULL)
1090 return NULL;
1091
1092 stats->ls_num = num;
1093 stats->ls_flags = flags;
1094 spin_lock_init(&stats->ls_lock);
1095
1096
1097 LIBCFS_ALLOC(stats->ls_cnt_header,
1098 stats->ls_num * sizeof(struct lprocfs_counter_header));
1099 if (stats->ls_cnt_header == NULL)
1100 goto fail;
1101
1102 if ((flags & LPROCFS_STATS_FLAG_NOPERCPU) != 0) {
1103
1104 percpusize = lprocfs_stats_counter_size(stats);
1105 LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[0], percpusize);
1106 if (stats->ls_percpu[0] == NULL)
1107 goto fail;
1108 stats->ls_biggest_alloc_num = 1;
1109 } else if ((flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0) {
1110
1111 for (i = 0; i < num_entry; ++i)
1112 if (lprocfs_stats_alloc_one(stats, i) < 0)
1113 goto fail;
1114 }
1115
1116 return stats;
1117
1118fail:
1119 lprocfs_free_stats(&stats);
1120 return NULL;
1121}
1122EXPORT_SYMBOL(lprocfs_alloc_stats);
1123
1124void lprocfs_free_stats(struct lprocfs_stats **statsh)
1125{
1126 struct lprocfs_stats *stats = *statsh;
1127 unsigned int num_entry;
1128 unsigned int percpusize;
1129 unsigned int i;
1130
1131 if (stats == NULL || stats->ls_num == 0)
1132 return;
1133 *statsh = NULL;
1134
1135 if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU)
1136 num_entry = 1;
1137 else
1138 num_entry = num_possible_cpus();
1139
1140 percpusize = lprocfs_stats_counter_size(stats);
1141 for (i = 0; i < num_entry; i++)
1142 if (stats->ls_percpu[i] != NULL)
1143 LIBCFS_FREE(stats->ls_percpu[i], percpusize);
1144 if (stats->ls_cnt_header != NULL)
1145 LIBCFS_FREE(stats->ls_cnt_header, stats->ls_num *
1146 sizeof(struct lprocfs_counter_header));
1147 LIBCFS_FREE(stats, offsetof(typeof(*stats), ls_percpu[num_entry]));
1148}
1149EXPORT_SYMBOL(lprocfs_free_stats);
1150
1151void lprocfs_clear_stats(struct lprocfs_stats *stats)
1152{
1153 struct lprocfs_counter *percpu_cntr;
1154 int i;
1155 int j;
1156 unsigned int num_entry;
1157 unsigned long flags = 0;
1158
1159 num_entry = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
1160
1161 for (i = 0; i < num_entry; i++) {
1162 if (stats->ls_percpu[i] == NULL)
1163 continue;
1164 for (j = 0; j < stats->ls_num; j++) {
1165 percpu_cntr = lprocfs_stats_counter_get(stats, i, j);
1166 percpu_cntr->lc_count = 0;
1167 percpu_cntr->lc_min = LC_MIN_INIT;
1168 percpu_cntr->lc_max = 0;
1169 percpu_cntr->lc_sumsquare = 0;
1170 percpu_cntr->lc_sum = 0;
1171 if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
1172 percpu_cntr->lc_sum_irq = 0;
1173 }
1174 }
1175
1176 lprocfs_stats_unlock(stats, LPROCFS_GET_NUM_CPU, &flags);
1177}
1178EXPORT_SYMBOL(lprocfs_clear_stats);
1179
1180static ssize_t lprocfs_stats_seq_write(struct file *file,
1181 const char __user *buf,
1182 size_t len, loff_t *off)
1183{
1184 struct seq_file *seq = file->private_data;
1185 struct lprocfs_stats *stats = seq->private;
1186
1187 lprocfs_clear_stats(stats);
1188
1189 return len;
1190}
1191
1192static void *lprocfs_stats_seq_start(struct seq_file *p, loff_t *pos)
1193{
1194 struct lprocfs_stats *stats = p->private;
1195
1196 return (*pos < stats->ls_num) ? pos : NULL;
1197}
1198
1199static void lprocfs_stats_seq_stop(struct seq_file *p, void *v)
1200{
1201}
1202
1203static void *lprocfs_stats_seq_next(struct seq_file *p, void *v, loff_t *pos)
1204{
1205 (*pos)++;
1206 return lprocfs_stats_seq_start(p, pos);
1207}
1208
1209
1210static int lprocfs_stats_seq_show(struct seq_file *p, void *v)
1211{
1212 struct lprocfs_stats *stats = p->private;
1213 struct lprocfs_counter_header *hdr;
1214 struct lprocfs_counter ctr;
1215 int idx = *(loff_t *)v;
1216
1217 if (idx == 0) {
1218 struct timeval now;
1219 do_gettimeofday(&now);
1220 seq_printf(p, "%-25s %lu.%lu secs.usecs\n",
1221 "snapshot_time",
1222 now.tv_sec, (unsigned long)now.tv_usec);
1223 }
1224
1225 hdr = &stats->ls_cnt_header[idx];
1226 lprocfs_stats_collect(stats, idx, &ctr);
1227
1228 if (ctr.lc_count != 0) {
1229 seq_printf(p, "%-25s %lld samples [%s]",
1230 hdr->lc_name, ctr.lc_count, hdr->lc_units);
1231
1232 if ((hdr->lc_config & LPROCFS_CNTR_AVGMINMAX) &&
1233 (ctr.lc_count > 0)) {
1234 seq_printf(p, " %lld %lld %lld",
1235 ctr.lc_min, ctr.lc_max, ctr.lc_sum);
1236 if (hdr->lc_config & LPROCFS_CNTR_STDDEV)
1237 seq_printf(p, " %lld", ctr.lc_sumsquare);
1238 }
1239 seq_putc(p, '\n');
1240 }
1241
1242 return 0;
1243}
1244
1245static const struct seq_operations lprocfs_stats_seq_sops = {
1246 .start = lprocfs_stats_seq_start,
1247 .stop = lprocfs_stats_seq_stop,
1248 .next = lprocfs_stats_seq_next,
1249 .show = lprocfs_stats_seq_show,
1250};
1251
1252static int lprocfs_stats_seq_open(struct inode *inode, struct file *file)
1253{
1254 struct seq_file *seq;
1255 int rc;
1256
1257 rc = seq_open(file, &lprocfs_stats_seq_sops);
1258 if (rc)
1259 return rc;
1260 seq = file->private_data;
1261 seq->private = PDE_DATA(inode);
1262 return 0;
1263}
1264
1265struct file_operations lprocfs_stats_seq_fops = {
1266 .owner = THIS_MODULE,
1267 .open = lprocfs_stats_seq_open,
1268 .read = seq_read,
1269 .write = lprocfs_stats_seq_write,
1270 .llseek = seq_lseek,
1271 .release = lprocfs_seq_release,
1272};
1273
1274int lprocfs_register_stats(struct proc_dir_entry *root, const char *name,
1275 struct lprocfs_stats *stats)
1276{
1277 struct proc_dir_entry *entry;
1278 LASSERT(root != NULL);
1279
1280 entry = proc_create_data(name, 0644, root,
1281 &lprocfs_stats_seq_fops, stats);
1282 if (entry == NULL)
1283 return -ENOMEM;
1284
1285 return 0;
1286}
1287EXPORT_SYMBOL(lprocfs_register_stats);
1288
1289void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
1290 unsigned conf, const char *name, const char *units)
1291{
1292 struct lprocfs_counter_header *header;
1293 struct lprocfs_counter *percpu_cntr;
1294 unsigned long flags = 0;
1295 unsigned int i;
1296 unsigned int num_cpu;
1297
1298 LASSERT(stats != NULL);
1299
1300 header = &stats->ls_cnt_header[index];
1301 LASSERTF(header != NULL, "Failed to allocate stats header:[%d]%s/%s\n",
1302 index, name, units);
1303
1304 header->lc_config = conf;
1305 header->lc_name = name;
1306 header->lc_units = units;
1307
1308 num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
1309 for (i = 0; i < num_cpu; ++i) {
1310 if (stats->ls_percpu[i] == NULL)
1311 continue;
1312 percpu_cntr = lprocfs_stats_counter_get(stats, i, index);
1313 percpu_cntr->lc_count = 0;
1314 percpu_cntr->lc_min = LC_MIN_INIT;
1315 percpu_cntr->lc_max = 0;
1316 percpu_cntr->lc_sumsquare = 0;
1317 percpu_cntr->lc_sum = 0;
1318 if ((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
1319 percpu_cntr->lc_sum_irq = 0;
1320 }
1321 lprocfs_stats_unlock(stats, LPROCFS_GET_NUM_CPU, &flags);
1322}
1323EXPORT_SYMBOL(lprocfs_counter_init);
1324
1325#define LPROCFS_OBD_OP_INIT(base, stats, op) \
1326do { \
1327 unsigned int coffset = base + OBD_COUNTER_OFFSET(op); \
1328 LASSERT(coffset < stats->ls_num); \
1329 lprocfs_counter_init(stats, coffset, 0, #op, "reqs"); \
1330} while (0)
1331
1332void lprocfs_init_ops_stats(int num_private_stats, struct lprocfs_stats *stats)
1333{
1334 LPROCFS_OBD_OP_INIT(num_private_stats, stats, iocontrol);
1335 LPROCFS_OBD_OP_INIT(num_private_stats, stats, get_info);
1336 LPROCFS_OBD_OP_INIT(num_private_stats, stats, set_info_async);
1337 LPROCFS_OBD_OP_INIT(num_private_stats, stats, attach);
1338 LPROCFS_OBD_OP_INIT(num_private_stats, stats, detach);
1339 LPROCFS_OBD_OP_INIT(num_private_stats, stats, setup);
1340 LPROCFS_OBD_OP_INIT(num_private_stats, stats, precleanup);
1341 LPROCFS_OBD_OP_INIT(num_private_stats, stats, cleanup);
1342 LPROCFS_OBD_OP_INIT(num_private_stats, stats, process_config);
1343 LPROCFS_OBD_OP_INIT(num_private_stats, stats, postrecov);
1344 LPROCFS_OBD_OP_INIT(num_private_stats, stats, add_conn);
1345 LPROCFS_OBD_OP_INIT(num_private_stats, stats, del_conn);
1346 LPROCFS_OBD_OP_INIT(num_private_stats, stats, connect);
1347 LPROCFS_OBD_OP_INIT(num_private_stats, stats, reconnect);
1348 LPROCFS_OBD_OP_INIT(num_private_stats, stats, disconnect);
1349 LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_init);
1350 LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_fini);
1351 LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_alloc);
1352 LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs);
1353 LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs_async);
1354 LPROCFS_OBD_OP_INIT(num_private_stats, stats, packmd);
1355 LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpackmd);
1356 LPROCFS_OBD_OP_INIT(num_private_stats, stats, preallocate);
1357 LPROCFS_OBD_OP_INIT(num_private_stats, stats, create);
1358 LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy);
1359 LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr);
1360 LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr_async);
1361 LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr);
1362 LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr_async);
1363 LPROCFS_OBD_OP_INIT(num_private_stats, stats, adjust_kms);
1364 LPROCFS_OBD_OP_INIT(num_private_stats, stats, preprw);
1365 LPROCFS_OBD_OP_INIT(num_private_stats, stats, commitrw);
1366 LPROCFS_OBD_OP_INIT(num_private_stats, stats, find_cbdata);
1367 LPROCFS_OBD_OP_INIT(num_private_stats, stats, init_export);
1368 LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy_export);
1369 LPROCFS_OBD_OP_INIT(num_private_stats, stats, import_event);
1370 LPROCFS_OBD_OP_INIT(num_private_stats, stats, notify);
1371 LPROCFS_OBD_OP_INIT(num_private_stats, stats, health_check);
1372 LPROCFS_OBD_OP_INIT(num_private_stats, stats, get_uuid);
1373 LPROCFS_OBD_OP_INIT(num_private_stats, stats, quotacheck);
1374 LPROCFS_OBD_OP_INIT(num_private_stats, stats, quotactl);
1375 LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_new);
1376 LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_rem);
1377 LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_add);
1378 LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_del);
1379 LPROCFS_OBD_OP_INIT(num_private_stats, stats, getref);
1380 LPROCFS_OBD_OP_INIT(num_private_stats, stats, putref);
1381}
1382EXPORT_SYMBOL(lprocfs_init_ops_stats);
1383
1384int lprocfs_alloc_obd_stats(struct obd_device *obd, unsigned num_private_stats)
1385{
1386 struct lprocfs_stats *stats;
1387 unsigned int num_stats;
1388 int rc, i;
1389
1390 LASSERT(obd->obd_stats == NULL);
1391 LASSERT(obd->obd_proc_entry != NULL);
1392 LASSERT(obd->obd_cntr_base == 0);
1393
1394 num_stats = ((int)sizeof(*obd->obd_type->typ_dt_ops) / sizeof(void *)) +
1395 num_private_stats - 1 ;
1396 stats = lprocfs_alloc_stats(num_stats, 0);
1397 if (stats == NULL)
1398 return -ENOMEM;
1399
1400 lprocfs_init_ops_stats(num_private_stats, stats);
1401
1402 for (i = num_private_stats; i < num_stats; i++) {
1403
1404
1405
1406
1407
1408 LASSERTF(stats->ls_cnt_header[i].lc_name != NULL,
1409 "Missing obd_stat initializer obd_op operation at offset %d.\n",
1410 i - num_private_stats);
1411 }
1412 rc = lprocfs_register_stats(obd->obd_proc_entry, "stats", stats);
1413 if (rc < 0) {
1414 lprocfs_free_stats(&stats);
1415 } else {
1416 obd->obd_stats = stats;
1417 obd->obd_cntr_base = num_private_stats;
1418 }
1419 return rc;
1420}
1421EXPORT_SYMBOL(lprocfs_alloc_obd_stats);
1422
1423void lprocfs_free_obd_stats(struct obd_device *obd)
1424{
1425 if (obd->obd_stats)
1426 lprocfs_free_stats(&obd->obd_stats);
1427}
1428EXPORT_SYMBOL(lprocfs_free_obd_stats);
1429
1430#define LPROCFS_MD_OP_INIT(base, stats, op) \
1431do { \
1432 unsigned int coffset = base + MD_COUNTER_OFFSET(op); \
1433 LASSERT(coffset < stats->ls_num); \
1434 lprocfs_counter_init(stats, coffset, 0, #op, "reqs"); \
1435} while (0)
1436
1437void lprocfs_init_mps_stats(int num_private_stats, struct lprocfs_stats *stats)
1438{
1439 LPROCFS_MD_OP_INIT(num_private_stats, stats, getstatus);
1440 LPROCFS_MD_OP_INIT(num_private_stats, stats, null_inode);
1441 LPROCFS_MD_OP_INIT(num_private_stats, stats, find_cbdata);
1442 LPROCFS_MD_OP_INIT(num_private_stats, stats, close);
1443 LPROCFS_MD_OP_INIT(num_private_stats, stats, create);
1444 LPROCFS_MD_OP_INIT(num_private_stats, stats, done_writing);
1445 LPROCFS_MD_OP_INIT(num_private_stats, stats, enqueue);
1446 LPROCFS_MD_OP_INIT(num_private_stats, stats, getattr);
1447 LPROCFS_MD_OP_INIT(num_private_stats, stats, getattr_name);
1448 LPROCFS_MD_OP_INIT(num_private_stats, stats, intent_lock);
1449 LPROCFS_MD_OP_INIT(num_private_stats, stats, link);
1450 LPROCFS_MD_OP_INIT(num_private_stats, stats, rename);
1451 LPROCFS_MD_OP_INIT(num_private_stats, stats, is_subdir);
1452 LPROCFS_MD_OP_INIT(num_private_stats, stats, setattr);
1453 LPROCFS_MD_OP_INIT(num_private_stats, stats, sync);
1454 LPROCFS_MD_OP_INIT(num_private_stats, stats, readpage);
1455 LPROCFS_MD_OP_INIT(num_private_stats, stats, unlink);
1456 LPROCFS_MD_OP_INIT(num_private_stats, stats, setxattr);
1457 LPROCFS_MD_OP_INIT(num_private_stats, stats, getxattr);
1458 LPROCFS_MD_OP_INIT(num_private_stats, stats, init_ea_size);
1459 LPROCFS_MD_OP_INIT(num_private_stats, stats, get_lustre_md);
1460 LPROCFS_MD_OP_INIT(num_private_stats, stats, free_lustre_md);
1461 LPROCFS_MD_OP_INIT(num_private_stats, stats, set_open_replay_data);
1462 LPROCFS_MD_OP_INIT(num_private_stats, stats, clear_open_replay_data);
1463 LPROCFS_MD_OP_INIT(num_private_stats, stats, set_lock_data);
1464 LPROCFS_MD_OP_INIT(num_private_stats, stats, lock_match);
1465 LPROCFS_MD_OP_INIT(num_private_stats, stats, cancel_unused);
1466 LPROCFS_MD_OP_INIT(num_private_stats, stats, renew_capa);
1467 LPROCFS_MD_OP_INIT(num_private_stats, stats, unpack_capa);
1468 LPROCFS_MD_OP_INIT(num_private_stats, stats, get_remote_perm);
1469 LPROCFS_MD_OP_INIT(num_private_stats, stats, intent_getattr_async);
1470 LPROCFS_MD_OP_INIT(num_private_stats, stats, revalidate_lock);
1471}
1472EXPORT_SYMBOL(lprocfs_init_mps_stats);
1473
1474int lprocfs_alloc_md_stats(struct obd_device *obd,
1475 unsigned num_private_stats)
1476{
1477 struct lprocfs_stats *stats;
1478 unsigned int num_stats;
1479 int rc, i;
1480
1481 LASSERT(obd->md_stats == NULL);
1482 LASSERT(obd->obd_proc_entry != NULL);
1483 LASSERT(obd->md_cntr_base == 0);
1484
1485 num_stats = 1 + MD_COUNTER_OFFSET(revalidate_lock) +
1486 num_private_stats;
1487 stats = lprocfs_alloc_stats(num_stats, 0);
1488 if (stats == NULL)
1489 return -ENOMEM;
1490
1491 lprocfs_init_mps_stats(num_private_stats, stats);
1492
1493 for (i = num_private_stats; i < num_stats; i++) {
1494 if (stats->ls_cnt_header[i].lc_name == NULL) {
1495 CERROR("Missing md_stat initializer md_op operation at offset %d. Aborting.\n",
1496 i - num_private_stats);
1497 LBUG();
1498 }
1499 }
1500 rc = lprocfs_register_stats(obd->obd_proc_entry, "md_stats", stats);
1501 if (rc < 0) {
1502 lprocfs_free_stats(&stats);
1503 } else {
1504 obd->md_stats = stats;
1505 obd->md_cntr_base = num_private_stats;
1506 }
1507 return rc;
1508}
1509EXPORT_SYMBOL(lprocfs_alloc_md_stats);
1510
1511void lprocfs_free_md_stats(struct obd_device *obd)
1512{
1513 struct lprocfs_stats *stats = obd->md_stats;
1514
1515 if (stats != NULL) {
1516 obd->md_stats = NULL;
1517 obd->md_cntr_base = 0;
1518 lprocfs_free_stats(&stats);
1519 }
1520}
1521EXPORT_SYMBOL(lprocfs_free_md_stats);
1522
1523void lprocfs_init_ldlm_stats(struct lprocfs_stats *ldlm_stats)
1524{
1525 lprocfs_counter_init(ldlm_stats,
1526 LDLM_ENQUEUE - LDLM_FIRST_OPC,
1527 0, "ldlm_enqueue", "reqs");
1528 lprocfs_counter_init(ldlm_stats,
1529 LDLM_CONVERT - LDLM_FIRST_OPC,
1530 0, "ldlm_convert", "reqs");
1531 lprocfs_counter_init(ldlm_stats,
1532 LDLM_CANCEL - LDLM_FIRST_OPC,
1533 0, "ldlm_cancel", "reqs");
1534 lprocfs_counter_init(ldlm_stats,
1535 LDLM_BL_CALLBACK - LDLM_FIRST_OPC,
1536 0, "ldlm_bl_callback", "reqs");
1537 lprocfs_counter_init(ldlm_stats,
1538 LDLM_CP_CALLBACK - LDLM_FIRST_OPC,
1539 0, "ldlm_cp_callback", "reqs");
1540 lprocfs_counter_init(ldlm_stats,
1541 LDLM_GL_CALLBACK - LDLM_FIRST_OPC,
1542 0, "ldlm_gl_callback", "reqs");
1543}
1544EXPORT_SYMBOL(lprocfs_init_ldlm_stats);
1545
1546int lprocfs_exp_print_uuid(struct cfs_hash *hs, struct cfs_hash_bd *bd,
1547 struct hlist_node *hnode, void *data)
1548
1549{
1550 struct obd_export *exp = cfs_hash_object(hs, hnode);
1551 struct seq_file *m = (struct seq_file *)data;
1552
1553 if (exp->exp_nid_stats)
1554 seq_printf(m, "%s\n", obd_uuid2str(&exp->exp_client_uuid));
1555
1556 return 0;
1557}
1558
1559static int
1560lproc_exp_uuid_seq_show(struct seq_file *m, void *unused)
1561{
1562 struct nid_stat *stats = (struct nid_stat *)m->private;
1563 struct obd_device *obd = stats->nid_obd;
1564
1565 cfs_hash_for_each_key(obd->obd_nid_hash, &stats->nid,
1566 lprocfs_exp_print_uuid, m);
1567 return 0;
1568}
1569
1570LPROC_SEQ_FOPS_RO(lproc_exp_uuid);
1571
1572struct exp_hash_cb_data {
1573 struct seq_file *m;
1574 bool first;
1575};
1576
1577int lprocfs_exp_print_hash(struct cfs_hash *hs, struct cfs_hash_bd *bd,
1578 struct hlist_node *hnode, void *cb_data)
1579
1580{
1581 struct exp_hash_cb_data *data = (struct exp_hash_cb_data *)cb_data;
1582 struct obd_export *exp = cfs_hash_object(hs, hnode);
1583
1584 if (exp->exp_lock_hash != NULL) {
1585 if (data->first) {
1586 cfs_hash_debug_header(data->m);
1587 data->first = false;
1588 }
1589 cfs_hash_debug_str(hs, data->m);
1590 }
1591
1592 return 0;
1593}
1594
1595static int
1596lproc_exp_hash_seq_show(struct seq_file *m, void *unused)
1597{
1598 struct nid_stat *stats = (struct nid_stat *)m->private;
1599 struct obd_device *obd = stats->nid_obd;
1600 struct exp_hash_cb_data cb_data = {
1601 .m = m,
1602 .first = true
1603 };
1604
1605 cfs_hash_for_each_key(obd->obd_nid_hash, &stats->nid,
1606 lprocfs_exp_print_hash, &cb_data);
1607 return 0;
1608}
1609
1610LPROC_SEQ_FOPS_RO(lproc_exp_hash);
1611
1612int lprocfs_nid_stats_clear_read(struct seq_file *m, void *data)
1613{
1614 seq_printf(m, "%s\n",
1615 "Write into this file to clear all nid stats and stale nid entries");
1616 return 0;
1617}
1618EXPORT_SYMBOL(lprocfs_nid_stats_clear_read);
1619
1620static int lprocfs_nid_stats_clear_write_cb(void *obj, void *data)
1621{
1622 struct nid_stat *stat = obj;
1623
1624 CDEBUG(D_INFO, "refcnt %d\n", atomic_read(&stat->nid_exp_ref_count));
1625 if (atomic_read(&stat->nid_exp_ref_count) == 1) {
1626
1627 spin_lock(&stat->nid_obd->obd_nid_lock);
1628 list_move(&stat->nid_list, data);
1629 spin_unlock(&stat->nid_obd->obd_nid_lock);
1630 return 1;
1631 }
1632
1633 if (stat->nid_stats)
1634 lprocfs_clear_stats(stat->nid_stats);
1635
1636 return 0;
1637}
1638
1639int lprocfs_nid_stats_clear_write(struct file *file, const char *buffer,
1640 unsigned long count, void *data)
1641{
1642 struct obd_device *obd = (struct obd_device *)data;
1643 struct nid_stat *client_stat;
1644 LIST_HEAD(free_list);
1645
1646 cfs_hash_cond_del(obd->obd_nid_stats_hash,
1647 lprocfs_nid_stats_clear_write_cb, &free_list);
1648
1649 while (!list_empty(&free_list)) {
1650 client_stat = list_entry(free_list.next, struct nid_stat,
1651 nid_list);
1652 list_del_init(&client_stat->nid_list);
1653 lprocfs_free_client_stats(client_stat);
1654 }
1655
1656 return count;
1657}
1658EXPORT_SYMBOL(lprocfs_nid_stats_clear_write);
1659
1660int lprocfs_exp_setup(struct obd_export *exp, lnet_nid_t *nid, int *newnid)
1661{
1662 struct nid_stat *new_stat, *old_stat;
1663 struct obd_device *obd = NULL;
1664 struct proc_dir_entry *entry;
1665 char *buffer = NULL;
1666 int rc = 0;
1667
1668 *newnid = 0;
1669
1670 if (!exp || !exp->exp_obd || !exp->exp_obd->obd_proc_exports_entry ||
1671 !exp->exp_obd->obd_nid_stats_hash)
1672 return -EINVAL;
1673
1674
1675
1676
1677 if (!nid || *nid == LNET_NID_ANY)
1678 return 0;
1679
1680 obd = exp->exp_obd;
1681
1682 CDEBUG(D_CONFIG, "using hash %p\n", obd->obd_nid_stats_hash);
1683
1684 OBD_ALLOC_PTR(new_stat);
1685 if (new_stat == NULL)
1686 return -ENOMEM;
1687
1688 new_stat->nid = *nid;
1689 new_stat->nid_obd = exp->exp_obd;
1690
1691 atomic_set(&new_stat->nid_exp_ref_count, 1);
1692
1693 old_stat = cfs_hash_findadd_unique(obd->obd_nid_stats_hash,
1694 nid, &new_stat->nid_hash);
1695 CDEBUG(D_INFO, "Found stats %p for nid %s - ref %d\n",
1696 old_stat, libcfs_nid2str(*nid),
1697 atomic_read(&new_stat->nid_exp_ref_count));
1698
1699
1700
1701 if (exp->exp_nid_stats) {
1702 nidstat_putref(exp->exp_nid_stats);
1703 exp->exp_nid_stats = NULL;
1704 }
1705
1706
1707
1708 if (old_stat != new_stat) {
1709 exp->exp_nid_stats = old_stat;
1710 rc = -EALREADY;
1711 goto destroy_new;
1712 }
1713
1714 OBD_ALLOC(buffer, LNET_NIDSTR_SIZE);
1715 if (buffer == NULL) {
1716 rc = -ENOMEM;
1717 goto destroy_new;
1718 }
1719
1720 memcpy(buffer, libcfs_nid2str(*nid), LNET_NIDSTR_SIZE);
1721 new_stat->nid_proc = lprocfs_register(buffer,
1722 obd->obd_proc_exports_entry,
1723 NULL, NULL);
1724 OBD_FREE(buffer, LNET_NIDSTR_SIZE);
1725
1726 if (IS_ERR(new_stat->nid_proc)) {
1727 CERROR("Error making export directory for nid %s\n",
1728 libcfs_nid2str(*nid));
1729 rc = PTR_ERR(new_stat->nid_proc);
1730 new_stat->nid_proc = NULL;
1731 goto destroy_new_ns;
1732 }
1733
1734 entry = lprocfs_add_simple(new_stat->nid_proc, "uuid",
1735 new_stat, &lproc_exp_uuid_fops);
1736 if (IS_ERR(entry)) {
1737 CWARN("Error adding the NID stats file\n");
1738 rc = PTR_ERR(entry);
1739 goto destroy_new_ns;
1740 }
1741
1742 entry = lprocfs_add_simple(new_stat->nid_proc, "hash",
1743 new_stat, &lproc_exp_hash_fops);
1744 if (IS_ERR(entry)) {
1745 CWARN("Error adding the hash file\n");
1746 rc = PTR_ERR(entry);
1747 goto destroy_new_ns;
1748 }
1749
1750 exp->exp_nid_stats = new_stat;
1751 *newnid = 1;
1752
1753 spin_lock(&obd->obd_nid_lock);
1754 list_add(&new_stat->nid_list, &obd->obd_nid_stats);
1755 spin_unlock(&obd->obd_nid_lock);
1756
1757 return rc;
1758
1759destroy_new_ns:
1760 if (new_stat->nid_proc != NULL)
1761 lprocfs_remove(&new_stat->nid_proc);
1762 cfs_hash_del(obd->obd_nid_stats_hash, nid, &new_stat->nid_hash);
1763
1764destroy_new:
1765 nidstat_putref(new_stat);
1766 OBD_FREE_PTR(new_stat);
1767 return rc;
1768}
1769EXPORT_SYMBOL(lprocfs_exp_setup);
1770
1771int lprocfs_exp_cleanup(struct obd_export *exp)
1772{
1773 struct nid_stat *stat = exp->exp_nid_stats;
1774
1775 if (!stat || !exp->exp_obd)
1776 return 0;
1777
1778 nidstat_putref(exp->exp_nid_stats);
1779 exp->exp_nid_stats = NULL;
1780
1781 return 0;
1782}
1783EXPORT_SYMBOL(lprocfs_exp_cleanup);
1784
1785__s64 lprocfs_read_helper(struct lprocfs_counter *lc,
1786 struct lprocfs_counter_header *header,
1787 enum lprocfs_stats_flags flags,
1788 enum lprocfs_fields_flags field)
1789{
1790 __s64 ret = 0;
1791
1792 if (lc == NULL || header == NULL)
1793 return 0;
1794
1795 switch (field) {
1796 case LPROCFS_FIELDS_FLAGS_CONFIG:
1797 ret = header->lc_config;
1798 break;
1799 case LPROCFS_FIELDS_FLAGS_SUM:
1800 ret = lc->lc_sum;
1801 if ((flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
1802 ret += lc->lc_sum_irq;
1803 break;
1804 case LPROCFS_FIELDS_FLAGS_MIN:
1805 ret = lc->lc_min;
1806 break;
1807 case LPROCFS_FIELDS_FLAGS_MAX:
1808 ret = lc->lc_max;
1809 break;
1810 case LPROCFS_FIELDS_FLAGS_AVG:
1811 ret = (lc->lc_max - lc->lc_min) / 2;
1812 break;
1813 case LPROCFS_FIELDS_FLAGS_SUMSQUARE:
1814 ret = lc->lc_sumsquare;
1815 break;
1816 case LPROCFS_FIELDS_FLAGS_COUNT:
1817 ret = lc->lc_count;
1818 break;
1819 default:
1820 break;
1821 }
1822
1823 return 0;
1824}
1825EXPORT_SYMBOL(lprocfs_read_helper);
1826
1827int lprocfs_write_helper(const char __user *buffer, unsigned long count,
1828 int *val)
1829{
1830 return lprocfs_write_frac_helper(buffer, count, val, 1);
1831}
1832EXPORT_SYMBOL(lprocfs_write_helper);
1833
1834int lprocfs_seq_read_frac_helper(struct seq_file *m, long val, int mult)
1835{
1836 long decimal_val, frac_val;
1837
1838 decimal_val = val / mult;
1839 seq_printf(m, "%ld", decimal_val);
1840 frac_val = val % mult;
1841
1842 if (frac_val > 0) {
1843 frac_val *= 100;
1844 frac_val /= mult;
1845 }
1846 if (frac_val > 0) {
1847
1848 if ((frac_val % 10) != 0)
1849 seq_printf(m, ".%ld", frac_val);
1850 else
1851 seq_printf(m, ".%ld", frac_val / 10);
1852 }
1853
1854 seq_printf(m, "\n");
1855 return 0;
1856}
1857EXPORT_SYMBOL(lprocfs_seq_read_frac_helper);
1858
1859int lprocfs_write_u64_helper(const char __user *buffer, unsigned long count,
1860 __u64 *val)
1861{
1862 return lprocfs_write_frac_u64_helper(buffer, count, val, 1);
1863}
1864EXPORT_SYMBOL(lprocfs_write_u64_helper);
1865
1866int lprocfs_write_frac_u64_helper(const char *buffer, unsigned long count,
1867 __u64 *val, int mult)
1868{
1869 char kernbuf[22], *end, *pbuf;
1870 __u64 whole, frac = 0, units;
1871 unsigned frac_d = 1;
1872 int sign = 1;
1873
1874 if (count > (sizeof(kernbuf) - 1))
1875 return -EINVAL;
1876
1877 if (copy_from_user(kernbuf, buffer, count))
1878 return -EFAULT;
1879
1880 kernbuf[count] = '\0';
1881 pbuf = kernbuf;
1882 if (*pbuf == '-') {
1883 sign = -1;
1884 pbuf++;
1885 }
1886
1887 whole = simple_strtoull(pbuf, &end, 10);
1888 if (pbuf == end)
1889 return -EINVAL;
1890
1891 if (*end == '.') {
1892 int i;
1893 pbuf = end + 1;
1894
1895
1896 if (strlen(pbuf) > 10)
1897 pbuf[10] = '\0';
1898
1899 frac = simple_strtoull(pbuf, &end, 10);
1900
1901 for (i = 0; i < (end - pbuf); i++)
1902 frac_d *= 10;
1903 }
1904
1905 units = 1;
1906 switch (tolower(*end)) {
1907 case 'p':
1908 units <<= 10;
1909 case 't':
1910 units <<= 10;
1911 case 'g':
1912 units <<= 10;
1913 case 'm':
1914 units <<= 10;
1915 case 'k':
1916 units <<= 10;
1917 }
1918
1919 if (units > 1)
1920 mult = units;
1921
1922 frac *= mult;
1923 do_div(frac, frac_d);
1924 *val = sign * (whole * mult + frac);
1925 return 0;
1926}
1927EXPORT_SYMBOL(lprocfs_write_frac_u64_helper);
1928
1929static char *lprocfs_strnstr(const char *s1, const char *s2, size_t len)
1930{
1931 size_t l2;
1932
1933 l2 = strlen(s2);
1934 if (!l2)
1935 return (char *)s1;
1936 while (len >= l2) {
1937 len--;
1938 if (!memcmp(s1, s2, l2))
1939 return (char *)s1;
1940 s1++;
1941 }
1942 return NULL;
1943}
1944
1945
1946
1947
1948
1949
1950char *lprocfs_find_named_value(const char *buffer, const char *name,
1951 size_t *count)
1952{
1953 char *val;
1954 size_t buflen = *count;
1955
1956
1957 val = lprocfs_strnstr(buffer, name, buflen);
1958 if (val == NULL)
1959 return (char *)buffer;
1960
1961 val += strlen(name);
1962 while (val < buffer + buflen && isspace(*val))
1963 val++;
1964
1965 *count = 0;
1966 while (val < buffer + buflen && isalnum(*val)) {
1967 ++*count;
1968 ++val;
1969 }
1970
1971 return val - *count;
1972}
1973EXPORT_SYMBOL(lprocfs_find_named_value);
1974
1975int lprocfs_seq_create(struct proc_dir_entry *parent,
1976 const char *name,
1977 umode_t mode,
1978 const struct file_operations *seq_fops,
1979 void *data)
1980{
1981 struct proc_dir_entry *entry;
1982
1983
1984 LASSERT((seq_fops->write == NULL) == ((mode & 0222) == 0));
1985 entry = proc_create_data(name, mode, parent, seq_fops, data);
1986
1987 if (entry == NULL)
1988 return -ENOMEM;
1989
1990 return 0;
1991}
1992EXPORT_SYMBOL(lprocfs_seq_create);
1993
1994int lprocfs_obd_seq_create(struct obd_device *dev,
1995 const char *name,
1996 umode_t mode,
1997 const struct file_operations *seq_fops,
1998 void *data)
1999{
2000 return lprocfs_seq_create(dev->obd_proc_entry, name,
2001 mode, seq_fops, data);
2002}
2003EXPORT_SYMBOL(lprocfs_obd_seq_create);
2004
2005void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value)
2006{
2007 if (value >= OBD_HIST_MAX)
2008 value = OBD_HIST_MAX - 1;
2009
2010 spin_lock(&oh->oh_lock);
2011 oh->oh_buckets[value]++;
2012 spin_unlock(&oh->oh_lock);
2013}
2014EXPORT_SYMBOL(lprocfs_oh_tally);
2015
2016void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value)
2017{
2018 unsigned int val;
2019
2020 for (val = 0; ((1 << val) < value) && (val <= OBD_HIST_MAX); val++)
2021 ;
2022
2023 lprocfs_oh_tally(oh, val);
2024}
2025EXPORT_SYMBOL(lprocfs_oh_tally_log2);
2026
2027unsigned long lprocfs_oh_sum(struct obd_histogram *oh)
2028{
2029 unsigned long ret = 0;
2030 int i;
2031
2032 for (i = 0; i < OBD_HIST_MAX; i++)
2033 ret += oh->oh_buckets[i];
2034 return ret;
2035}
2036EXPORT_SYMBOL(lprocfs_oh_sum);
2037
2038void lprocfs_oh_clear(struct obd_histogram *oh)
2039{
2040 spin_lock(&oh->oh_lock);
2041 memset(oh->oh_buckets, 0, sizeof(oh->oh_buckets));
2042 spin_unlock(&oh->oh_lock);
2043}
2044EXPORT_SYMBOL(lprocfs_oh_clear);
2045
2046int lprocfs_obd_rd_max_pages_per_rpc(struct seq_file *m, void *data)
2047{
2048 struct obd_device *dev = data;
2049 struct client_obd *cli = &dev->u.cli;
2050
2051 client_obd_list_lock(&cli->cl_loi_list_lock);
2052 seq_printf(m, "%d\n", cli->cl_max_pages_per_rpc);
2053 client_obd_list_unlock(&cli->cl_loi_list_lock);
2054
2055 return 0;
2056}
2057EXPORT_SYMBOL(lprocfs_obd_rd_max_pages_per_rpc);
2058
2059#endif
2060
