1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2002, 2003 Cluster File Systems, Inc.
5 * Author: Hariharan Thantry <thantry@users.sourceforge.net>
7 * This file is part of Lustre, http://www.lustre.org.
9 * Lustre is free software; you can redistribute it and/or
10 * modify it under the terms of version 2 of the GNU General Public
11 * License as published by the Free Software Foundation.
13 * Lustre is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with Lustre; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 # define EXPORT_SYMTAB
26 #define DEBUG_SUBSYSTEM S_CLASS
29 # include <linux/config.h>
30 # include <linux/module.h>
31 # include <linux/version.h>
32 # include <linux/slab.h>
33 # include <linux/types.h>
34 # if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
35 # include <asm/statfs.h>
37 # include <linux/seq_file.h>
38 #else /* __KERNEL__ */
39 # include <liblustre.h>
42 #include <linux/obd_class.h>
43 #include <linux/lprocfs_status.h>
44 #include <linux/lustre_fsfilt.h>
46 #if defined(LPROCFS) && defined(__KERNEL__)
48 struct proc_dir_entry *lprocfs_srch(struct proc_dir_entry *head,
51 struct proc_dir_entry *temp;
57 while (temp != NULL) {
58 if (strcmp(temp->name, name) == 0)
66 /* lprocfs API calls */
68 int lprocfs_add_vars(struct proc_dir_entry *root, struct lprocfs_vars *list,
71 if (root == NULL || list == NULL)
74 while (list->name != NULL) {
75 struct proc_dir_entry *cur_root, *proc;
76 char *pathcopy, *cur, *next, pathbuf[64];
77 int pathsize = strlen(list->name) + 1;
82 /* need copy of path for strsep */
83 if (strlen(list->name) > sizeof(pathbuf) - 1) {
84 OBD_ALLOC(pathcopy, pathsize);
92 strcpy(pathcopy, list->name);
94 while (cur_root != NULL && (cur = strsep(&next, "/"))) {
95 if (*cur =='\0') /* skip double/trailing "/" */
98 proc = lprocfs_srch(cur_root, cur);
99 CDEBUG(D_OTHER, "cur_root=%s, cur=%s, next=%s, (%s)\n",
100 cur_root->name, cur, next,
101 (proc ? "exists" : "new"));
103 cur_root = (proc ? proc :
104 proc_mkdir(cur, cur_root));
105 } else if (proc == NULL) {
109 if (list->write_fptr)
111 proc = create_proc_entry(cur, mode, cur_root);
115 if (pathcopy != pathbuf)
116 OBD_FREE(pathcopy, pathsize);
118 if (cur_root == NULL || proc == NULL) {
119 CERROR("LprocFS: No memory to create /proc entry %s",
124 proc->read_proc = list->read_fptr;
125 proc->write_proc = list->write_fptr;
126 proc->data = (list->data ? list->data : data);
132 void lprocfs_remove(struct proc_dir_entry *root)
134 struct proc_dir_entry *temp = root;
135 struct proc_dir_entry *rm_entry;
136 struct proc_dir_entry *parent;
138 LASSERT(root != NULL);
139 parent = root->parent;
140 LASSERT(parent != NULL);
143 while (temp->subdir != NULL)
149 /* Memory corruption once caused this to fail, and
150 without this LASSERT we would loop here forever. */
151 LASSERTF(strlen(rm_entry->name) == rm_entry->namelen,
152 "0x%p %s/%s len %d\n", rm_entry, temp->name,
153 rm_entry->name, (int)strlen(rm_entry->name));
155 remove_proc_entry(rm_entry->name, rm_entry->parent);
161 struct proc_dir_entry *lprocfs_register(const char *name,
162 struct proc_dir_entry *parent,
163 struct lprocfs_vars *list, void *data)
165 struct proc_dir_entry *newchild;
167 newchild = lprocfs_srch(parent, name);
168 if (newchild != NULL) {
169 CERROR(" Lproc: Attempting to register %s more than once \n",
171 return ERR_PTR(-EALREADY);
174 newchild = proc_mkdir(name, parent);
175 if (newchild != NULL && list != NULL) {
176 int rc = lprocfs_add_vars(newchild, list, data);
178 lprocfs_remove(newchild);
185 /* Generic callbacks */
187 int lprocfs_rd_u64(char *page, char **start, off_t off,
188 int count, int *eof, void *data)
190 LASSERT(data != NULL);
192 return snprintf(page, count, LPU64"\n", *(__u64 *)data);
195 int lprocfs_rd_atomic(char *page, char **start, off_t off,
196 int count, int *eof, void *data)
198 atomic_t *atom = (atomic_t *)data;
199 LASSERT(atom != NULL);
201 return snprintf(page, count, "%d\n", atomic_read(atom));
204 int lprocfs_rd_uuid(char *page, char **start, off_t off, int count,
205 int *eof, void *data)
207 struct obd_device *dev = (struct obd_device*)data;
209 LASSERT(dev != NULL);
211 return snprintf(page, count, "%s\n", dev->obd_uuid.uuid);
214 int lprocfs_rd_name(char *page, char **start, off_t off, int count,
215 int *eof, void* data)
217 struct obd_device *dev = (struct obd_device *)data;
219 LASSERT(dev != NULL);
220 LASSERT(dev->obd_name != NULL);
222 return snprintf(page, count, "%s\n", dev->obd_name);
225 int lprocfs_rd_fstype(char *page, char **start, off_t off, int count, int *eof,
228 struct obd_device *obd = (struct obd_device *)data;
230 LASSERT(obd != NULL);
231 LASSERT(obd->obd_fsops != NULL);
232 LASSERT(obd->obd_fsops->fs_type != NULL);
233 return snprintf(page, count, "%s\n", obd->obd_fsops->fs_type);
236 int lprocfs_rd_blksize(char *page, char **start, off_t off, int count,
237 int *eof, void *data)
239 struct obd_statfs osfs;
240 int rc = obd_statfs(data, &osfs, jiffies - HZ);
243 rc = snprintf(page, count, "%u\n", osfs.os_bsize);
248 int lprocfs_rd_kbytestotal(char *page, char **start, off_t off, int count,
249 int *eof, void *data)
251 struct obd_statfs osfs;
252 int rc = obd_statfs(data, &osfs, jiffies - HZ);
254 __u32 blk_size = osfs.os_bsize >> 10;
255 __u64 result = osfs.os_blocks;
257 while (blk_size >>= 1)
261 rc = snprintf(page, count, LPU64"\n", result);
266 int lprocfs_rd_kbytesfree(char *page, char **start, off_t off, int count,
267 int *eof, void *data)
269 struct obd_statfs osfs;
270 int rc = obd_statfs(data, &osfs, jiffies - HZ);
272 __u32 blk_size = osfs.os_bsize >> 10;
273 __u64 result = osfs.os_bfree;
275 while (blk_size >>= 1)
279 rc = snprintf(page, count, LPU64"\n", result);
284 int lprocfs_rd_kbytesavail(char *page, char **start, off_t off, int count,
285 int *eof, void *data)
287 struct obd_statfs osfs;
288 int rc = obd_statfs(data, &osfs, jiffies - HZ);
290 __u32 blk_size = osfs.os_bsize >> 10;
291 __u64 result = osfs.os_bavail;
293 while (blk_size >>= 1)
297 rc = snprintf(page, count, LPU64"\n", result);
302 int lprocfs_rd_filestotal(char *page, char **start, off_t off, int count,
303 int *eof, void *data)
305 struct obd_statfs osfs;
306 int rc = obd_statfs(data, &osfs, jiffies - HZ);
309 rc = snprintf(page, count, LPU64"\n", osfs.os_files);
315 int lprocfs_rd_filesfree(char *page, char **start, off_t off, int count,
316 int *eof, void *data)
318 struct obd_statfs osfs;
319 int rc = obd_statfs(data, &osfs, jiffies - HZ);
322 rc = snprintf(page, count, LPU64"\n", osfs.os_ffree);
327 int lprocfs_rd_server_uuid(char *page, char **start, off_t off, int count,
328 int *eof, void *data)
330 struct obd_device *obd = (struct obd_device *)data;
331 struct obd_import *imp;
332 char *imp_state_name = NULL;
334 LASSERT(obd != NULL);
335 imp = obd->u.cli.cl_import;
336 imp_state_name = ptlrpc_import_state_name(imp->imp_state);
338 return snprintf(page, count, "%s\t%s\n",
339 imp->imp_target_uuid.uuid, imp_state_name);
342 int lprocfs_rd_conn_uuid(char *page, char **start, off_t off, int count,
343 int *eof, void *data)
345 struct obd_device *obd = (struct obd_device*)data;
346 struct ptlrpc_connection *conn;
348 LASSERT(obd != NULL);
349 conn = obd->u.cli.cl_import->imp_connection;
350 LASSERT(conn != NULL);
352 return snprintf(page, count, "%s\n", conn->c_remote_uuid.uuid);
355 int lprocfs_rd_num_exports(char *page, char **start, off_t off, int count,
356 int *eof, void *data)
358 struct obd_device *obd = (struct obd_device*)data;
360 LASSERT(obd != NULL);
362 return snprintf(page, count, "%u\n", obd->obd_num_exports);
365 int lprocfs_rd_numrefs(char *page, char **start, off_t off, int count,
366 int *eof, void *data)
368 struct obd_type *class = (struct obd_type*) data;
370 LASSERT(class != NULL);
372 return snprintf(page, count, "%d\n", class->typ_refcnt);
375 int lprocfs_obd_setup(struct obd_device *obd, struct lprocfs_vars *list)
379 LASSERT(obd != NULL);
380 LASSERT(obd->obd_type != NULL);
381 LASSERT(obd->obd_type->typ_procroot != NULL);
383 obd->obd_proc_entry = lprocfs_register(obd->obd_name,
384 obd->obd_type->typ_procroot,
386 if (IS_ERR(obd->obd_proc_entry)) {
387 rc = PTR_ERR(obd->obd_proc_entry);
388 CERROR("error %d setting up lprocfs for %s\n",rc,obd->obd_name);
389 obd->obd_proc_entry = NULL;
394 int lprocfs_obd_cleanup(struct obd_device *obd)
396 if (obd && obd->obd_proc_entry) {
397 lprocfs_remove(obd->obd_proc_entry);
398 obd->obd_proc_entry = NULL;
403 struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num)
405 struct lprocfs_stats *stats;
406 struct lprocfs_percpu *percpu;
407 unsigned int percpusize;
413 OBD_ALLOC(stats, offsetof(typeof(*stats), ls_percpu[num_online_cpus()]));
417 percpusize = L1_CACHE_ALIGN(offsetof(typeof(*percpu), lp_cntr[num]));
418 stats->ls_percpu_size = num_online_cpus() * percpusize;
419 OBD_ALLOC(stats->ls_percpu[0], stats->ls_percpu_size);
420 if (stats->ls_percpu[0] == NULL) {
421 OBD_FREE(stats, offsetof(typeof(*stats),
422 ls_percpu[num_online_cpus()]));
427 for (i = 1; i < num_online_cpus(); i++)
428 stats->ls_percpu[i] = (void *)(stats->ls_percpu[i - 1]) +
434 void lprocfs_free_stats(struct lprocfs_stats *stats)
436 if (stats->ls_num == 0)
439 OBD_FREE(stats->ls_percpu[0], stats->ls_percpu_size);
440 OBD_FREE(stats, offsetof(typeof(*stats), ls_percpu[num_online_cpus()]));
443 /* Reset counter under lock */
444 int lprocfs_counter_write(struct file *file, const char *buffer,
445 unsigned long count, void *data)
451 static void *lprocfs_stats_seq_start(struct seq_file *p, loff_t *pos)
453 struct lprocfs_stats *stats = p->private;
454 /* return 1st cpu location */
455 return (*pos >= stats->ls_num) ? NULL :
456 &(stats->ls_percpu[0]->lp_cntr[*pos]);
459 static void lprocfs_stats_seq_stop(struct seq_file *p, void *v)
463 static void *lprocfs_stats_seq_next(struct seq_file *p, void *v, loff_t *pos)
465 struct lprocfs_stats *stats = p->private;
467 return (*pos >= stats->ls_num) ? NULL :
468 &(stats->ls_percpu[0]->lp_cntr[*pos]);
471 /* seq file export of one lprocfs counter */
472 static int lprocfs_stats_seq_show(struct seq_file *p, void *v)
474 struct lprocfs_stats *stats = p->private;
475 struct lprocfs_counter *cntr = v;
476 struct lprocfs_counter t, ret = { .lc_min = ~(__u64)0 };
479 if (cntr == &(stats->ls_percpu[0])->lp_cntr[0]) {
481 do_gettimeofday(&now);
482 rc = seq_printf(p, "%-25s %lu.%lu secs.usecs\n",
483 "snapshot_time", now.tv_sec, now.tv_usec);
487 idx = cntr - &(stats->ls_percpu[0])->lp_cntr[0];
489 for (i = 0; i < num_online_cpus(); i++) {
490 struct lprocfs_counter *percpu_cntr =
491 &(stats->ls_percpu[i])->lp_cntr[idx];
495 centry = atomic_read(&percpu_cntr->lc_cntl.la_entry);
496 t.lc_count = percpu_cntr->lc_count;
497 t.lc_sum = percpu_cntr->lc_sum;
498 t.lc_min = percpu_cntr->lc_min;
499 t.lc_max = percpu_cntr->lc_max;
500 t.lc_sumsquare = percpu_cntr->lc_sumsquare;
501 } while (centry != atomic_read(&percpu_cntr->lc_cntl.la_entry) &&
502 centry != atomic_read(&percpu_cntr->lc_cntl.la_exit));
503 ret.lc_count += t.lc_count;
504 ret.lc_sum += t.lc_sum;
505 if (t.lc_min < ret.lc_min)
506 ret.lc_min = t.lc_min;
507 if (t.lc_max > ret.lc_max)
508 ret.lc_max = t.lc_max;
509 ret.lc_sumsquare += t.lc_sumsquare;
512 rc = seq_printf(p, "%-25s "LPU64" samples [%s]", cntr->lc_name,
513 ret.lc_count, cntr->lc_units);
517 if ((cntr->lc_config & LPROCFS_CNTR_AVGMINMAX) && (ret.lc_count > 0)) {
518 rc = seq_printf(p, " "LPU64" "LPU64" "LPU64,
519 ret.lc_min, ret.lc_max, ret.lc_sum);
522 if (cntr->lc_config & LPROCFS_CNTR_STDDEV)
523 rc = seq_printf(p, " "LPU64, ret.lc_sumsquare);
527 rc = seq_printf(p, "\n");
529 return (rc < 0) ? rc : 0;
532 struct seq_operations lprocfs_stats_seq_sops = {
533 start: lprocfs_stats_seq_start,
534 stop: lprocfs_stats_seq_stop,
535 next: lprocfs_stats_seq_next,
536 show: lprocfs_stats_seq_show,
539 static int lprocfs_stats_seq_open(struct inode *inode, struct file *file)
541 struct proc_dir_entry *dp = PDE(inode);
542 struct seq_file *seq;
545 rc = seq_open(file, &lprocfs_stats_seq_sops);
548 seq = file->private_data;
549 seq->private = dp->data;
553 struct file_operations lprocfs_stats_seq_fops = {
554 .owner = THIS_MODULE,
555 .open = lprocfs_stats_seq_open,
558 .release = seq_release,
561 int lprocfs_register_stats(struct proc_dir_entry *root, const char *name,
562 struct lprocfs_stats *stats)
564 struct proc_dir_entry *entry;
565 LASSERT(root != NULL);
567 entry = create_proc_entry(name, 0444, root);
570 entry->proc_fops = &lprocfs_stats_seq_fops;
571 entry->data = (void *)stats;
572 entry->write_proc = lprocfs_counter_write;
576 void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
577 unsigned conf, const char *name, const char *units)
579 struct lprocfs_counter *c;
582 LASSERT(stats != NULL);
583 for (i = 0; i < num_online_cpus(); i++) {
584 c = &(stats->ls_percpu[i]->lp_cntr[index]);
586 c->lc_min = ~(__u64)0;
591 EXPORT_SYMBOL(lprocfs_counter_init);
593 #define LPROCFS_OBD_OP_INIT(base, stats, op) \
595 unsigned int coffset = base + OBD_COUNTER_OFFSET(op); \
596 LASSERT(coffset < stats->ls_num); \
597 lprocfs_counter_init(stats, coffset, 0, #op, "reqs"); \
600 int lprocfs_alloc_obd_stats(struct obd_device *obd, unsigned num_private_stats)
602 struct lprocfs_stats *stats;
603 unsigned int num_stats;
606 LASSERT(obd->obd_stats == NULL);
607 LASSERT(obd->obd_proc_entry != NULL);
608 LASSERT(obd->obd_cntr_base == 0);
610 num_stats = 1 + OBD_COUNTER_OFFSET(notify) +
612 stats = lprocfs_alloc_stats(num_stats);
616 LPROCFS_OBD_OP_INIT(num_private_stats, stats, iocontrol);
617 LPROCFS_OBD_OP_INIT(num_private_stats, stats, get_info);
618 LPROCFS_OBD_OP_INIT(num_private_stats, stats, set_info);
619 LPROCFS_OBD_OP_INIT(num_private_stats, stats, attach);
620 LPROCFS_OBD_OP_INIT(num_private_stats, stats, detach);
621 LPROCFS_OBD_OP_INIT(num_private_stats, stats, setup);
622 LPROCFS_OBD_OP_INIT(num_private_stats, stats, precleanup);
623 LPROCFS_OBD_OP_INIT(num_private_stats, stats, cleanup);
624 LPROCFS_OBD_OP_INIT(num_private_stats, stats, postrecov);
625 LPROCFS_OBD_OP_INIT(num_private_stats, stats, add_conn);
626 LPROCFS_OBD_OP_INIT(num_private_stats, stats, del_conn);
627 LPROCFS_OBD_OP_INIT(num_private_stats, stats, connect);
628 LPROCFS_OBD_OP_INIT(num_private_stats, stats, disconnect);
629 LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs);
630 LPROCFS_OBD_OP_INIT(num_private_stats, stats, packmd);
631 LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpackmd);
632 LPROCFS_OBD_OP_INIT(num_private_stats, stats, preallocate);
633 LPROCFS_OBD_OP_INIT(num_private_stats, stats, create);
634 LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy);
635 LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr);
636 LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr);
637 LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr_async);
638 LPROCFS_OBD_OP_INIT(num_private_stats, stats, brw);
639 LPROCFS_OBD_OP_INIT(num_private_stats, stats, brw_async);
640 LPROCFS_OBD_OP_INIT(num_private_stats, stats, prep_async_page);
641 LPROCFS_OBD_OP_INIT(num_private_stats, stats, queue_async_io);
642 LPROCFS_OBD_OP_INIT(num_private_stats, stats, queue_group_io);
643 LPROCFS_OBD_OP_INIT(num_private_stats, stats, trigger_group_io);
644 LPROCFS_OBD_OP_INIT(num_private_stats, stats, set_async_flags);
645 LPROCFS_OBD_OP_INIT(num_private_stats, stats, teardown_async_page);
646 LPROCFS_OBD_OP_INIT(num_private_stats, stats, adjust_kms);
647 LPROCFS_OBD_OP_INIT(num_private_stats, stats, punch);
648 LPROCFS_OBD_OP_INIT(num_private_stats, stats, sync);
649 LPROCFS_OBD_OP_INIT(num_private_stats, stats, migrate);
650 LPROCFS_OBD_OP_INIT(num_private_stats, stats, copy);
651 LPROCFS_OBD_OP_INIT(num_private_stats, stats, iterate);
652 LPROCFS_OBD_OP_INIT(num_private_stats, stats, preprw);
653 LPROCFS_OBD_OP_INIT(num_private_stats, stats, commitrw);
654 LPROCFS_OBD_OP_INIT(num_private_stats, stats, enqueue);
655 LPROCFS_OBD_OP_INIT(num_private_stats, stats, match);
656 LPROCFS_OBD_OP_INIT(num_private_stats, stats, change_cbdata);
657 LPROCFS_OBD_OP_INIT(num_private_stats, stats, cancel);
658 LPROCFS_OBD_OP_INIT(num_private_stats, stats, cancel_unused);
659 LPROCFS_OBD_OP_INIT(num_private_stats, stats, join_lru);
660 LPROCFS_OBD_OP_INIT(num_private_stats, stats, san_preprw);
661 LPROCFS_OBD_OP_INIT(num_private_stats, stats, init_export);
662 LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy_export);
663 LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_init);
664 LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_finish);
665 LPROCFS_OBD_OP_INIT(num_private_stats, stats, pin);
666 LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpin);
667 LPROCFS_OBD_OP_INIT(num_private_stats, stats, import_event);
668 LPROCFS_OBD_OP_INIT(num_private_stats, stats, notify);
670 for (i = num_private_stats; i < num_stats; i++) {
671 /* If this LBUGs, it is likely that an obd
672 * operation was added to struct obd_ops in
673 * <linux/obd.h>, and that the corresponding line item
674 * LPROCFS_OBD_OP_INIT(.., .., opname)
675 * is missing from the list above. */
676 if (stats->ls_percpu[0]->lp_cntr[i].lc_name == NULL) {
677 CERROR("Missing obd_stat initializer obd_op "
678 "operation at offset %d. Aborting.\n",
679 i - num_private_stats);
683 rc = lprocfs_register_stats(obd->obd_proc_entry, "stats", stats);
685 lprocfs_free_stats(stats);
687 obd->obd_stats = stats;
688 obd->obd_cntr_base = num_private_stats;
693 void lprocfs_free_obd_stats(struct obd_device *obd)
695 struct lprocfs_stats *stats = obd->obd_stats;
698 obd->obd_stats = NULL;
699 lprocfs_free_stats(stats);
703 int lprocfs_write_helper(const char *buffer, unsigned long count,
706 char kernbuf[20], *end;
708 if (count > (sizeof(kernbuf) - 1))
711 if (copy_from_user(kernbuf, buffer, count))
714 kernbuf[count] = '\0';
716 *val = simple_strtol(kernbuf, &end, 0);
723 int lprocfs_write_u64_helper(const char *buffer, unsigned long count,__u64 *val)
725 char kernbuf[22], *end;
727 if (count > (sizeof(kernbuf) - 1))
730 if (copy_from_user(kernbuf, buffer, count))
733 kernbuf[count] = '\0';
735 if (kernbuf[0] == '-')
736 *val = -simple_strtoull(kernbuf + 1, &end, 0);
738 *val = simple_strtoull(kernbuf, &end, 0);
745 int lprocfs_obd_seq_create(struct obd_device *dev, char *name, mode_t mode,
746 struct file_operations *seq_fops, void *data)
748 struct proc_dir_entry *entry;
751 entry = create_proc_entry(name, mode, dev->obd_proc_entry);
754 entry->proc_fops = seq_fops;
759 EXPORT_SYMBOL(lprocfs_obd_seq_create);
761 void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value)
765 if (value >= OBD_HIST_MAX)
766 value = OBD_HIST_MAX - 1;
768 spin_lock_irqsave(&oh->oh_lock, flags);
769 oh->oh_buckets[value]++;
770 spin_unlock_irqrestore(&oh->oh_lock, flags);
772 EXPORT_SYMBOL(lprocfs_oh_tally);
774 void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value)
778 for (val = 0; ((1 << val) < value) && (val <= OBD_HIST_MAX); val++)
781 lprocfs_oh_tally(oh, val);
783 EXPORT_SYMBOL(lprocfs_oh_tally_log2);
785 unsigned long lprocfs_oh_sum(struct obd_histogram *oh)
787 unsigned long ret = 0;
790 for (i = 0; i < OBD_HIST_MAX; i++)
791 ret += oh->oh_buckets[i];
794 EXPORT_SYMBOL(lprocfs_oh_sum);
796 void lprocfs_oh_clear(struct obd_histogram *oh)
799 spin_lock_irqsave(&oh->oh_lock, flags);
800 memset(oh->oh_buckets, 0, sizeof(oh->oh_buckets));
801 spin_unlock_irqrestore(&oh->oh_lock, flags);
803 EXPORT_SYMBOL(lprocfs_oh_clear);
805 int lprocfs_obd_rd_recovery_status(char *page, char **start, off_t off,
806 int count, int *eof, void *data)
808 struct obd_device *obd = data;
810 connected = obd->obd_connected_clients,
811 max_recoverable = obd->obd_max_recoverable_clients,
812 recoverable = obd->obd_recoverable_clients,
813 completed = max_recoverable - recoverable,
814 queue_len = obd->obd_requests_queued_for_recovery,
815 replayed = obd->obd_replayed_requests;
816 __u64 next_transno = obd->obd_next_recovery_transno;
818 LASSERT(obd != NULL);
821 n = snprintf(page, count, "status: ");
822 page += n; len += n; count -= n;
823 if (obd->obd_max_recoverable_clients == 0) {
824 n = snprintf(page, count, "INACTIVE\n");
828 /* sampled unlocked, but really... */
829 if (obd->obd_recovering == 0) {
830 n = snprintf(page, count, "COMPLETE\n");
831 page += n; len += n; count -= n;
833 n = snprintf(page, count, "recovery_start: %lu\n",
834 obd->obd_recovery_start);
835 page += n; len += n; count -= n;
836 n = snprintf(page, count, "recovery_end: %lu\n",
837 obd->obd_recovery_end);
838 page += n; len += n; count -= n;
839 n = snprintf(page, count, "recovered_clients: %d\n",
841 page += n; len += n; count -= n;
842 n = snprintf(page, count, "unrecovered_clients: %d\n",
843 obd->obd_recoverable_clients);
844 page += n; len += n; count -= n;
845 n = snprintf(page, count, "last_transno: "LPD64"\n",
847 page += n; len += n; count -= n;
848 n = snprintf(page, count, "replayed_requests: %d\n", replayed);
852 n = snprintf(page, count, "RECOVERING\n");
853 page += n; len += n; count -= n;
854 n = snprintf(page, count, "recovery_start: %lu\n",
855 obd->obd_recovery_start);
856 page += n; len += n; count -= n;
857 n = snprintf(page, count, "connected_clients: %d/%d\n",
858 connected, max_recoverable);
859 page += n; len += n; count -= n;
860 n = snprintf(page, count, "completed_clients: %d/%d\n",
861 completed, max_recoverable);
862 page += n; len += n; count -= n;
863 n = snprintf(page, count, "replayed_requests: %d/??\n", replayed);
864 page += n; len += n; count -= n;
865 n = snprintf(page, count, "queued_requests: %d\n", queue_len);
866 page += n; len += n; count -= n;
867 n = snprintf(page, count, "next_transno: "LPD64"\n", next_transno);
870 EXPORT_SYMBOL(lprocfs_obd_rd_recovery_status);
874 EXPORT_SYMBOL(lprocfs_register);
875 EXPORT_SYMBOL(lprocfs_srch);
876 EXPORT_SYMBOL(lprocfs_remove);
877 EXPORT_SYMBOL(lprocfs_add_vars);
878 EXPORT_SYMBOL(lprocfs_obd_setup);
879 EXPORT_SYMBOL(lprocfs_obd_cleanup);
880 EXPORT_SYMBOL(lprocfs_alloc_stats);
881 EXPORT_SYMBOL(lprocfs_free_stats);
882 EXPORT_SYMBOL(lprocfs_register_stats);
883 EXPORT_SYMBOL(lprocfs_alloc_obd_stats);
884 EXPORT_SYMBOL(lprocfs_free_obd_stats);
886 EXPORT_SYMBOL(lprocfs_rd_u64);
887 EXPORT_SYMBOL(lprocfs_rd_atomic);
888 EXPORT_SYMBOL(lprocfs_rd_uuid);
889 EXPORT_SYMBOL(lprocfs_rd_name);
890 EXPORT_SYMBOL(lprocfs_rd_fstype);
891 EXPORT_SYMBOL(lprocfs_rd_server_uuid);
892 EXPORT_SYMBOL(lprocfs_rd_conn_uuid);
893 EXPORT_SYMBOL(lprocfs_rd_num_exports);
894 EXPORT_SYMBOL(lprocfs_rd_numrefs);
896 EXPORT_SYMBOL(lprocfs_rd_blksize);
897 EXPORT_SYMBOL(lprocfs_rd_kbytestotal);
898 EXPORT_SYMBOL(lprocfs_rd_kbytesfree);
899 EXPORT_SYMBOL(lprocfs_rd_kbytesavail);
900 EXPORT_SYMBOL(lprocfs_rd_filestotal);
901 EXPORT_SYMBOL(lprocfs_rd_filesfree);
903 EXPORT_SYMBOL(lprocfs_write_helper);
904 EXPORT_SYMBOL(lprocfs_write_u64_helper);