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 # include <asm/div64.h>
39 #else /* __KERNEL__ */
40 # include <liblustre.h>
43 #include <linux/obd_class.h>
44 #include <linux/lprocfs_status.h>
45 #include <linux/lustre_fsfilt.h>
47 #if defined(LPROCFS) && defined(__KERNEL__)
49 struct proc_dir_entry *lprocfs_srch(struct proc_dir_entry *head,
52 struct proc_dir_entry *temp;
58 while (temp != NULL) {
59 if (strcmp(temp->name, name) == 0)
67 /* lprocfs API calls */
69 int lprocfs_add_vars(struct proc_dir_entry *root, struct lprocfs_vars *list,
72 if (root == NULL || list == NULL)
75 while (list->name != NULL) {
76 struct proc_dir_entry *cur_root, *proc;
77 char *pathcopy, *cur, *next, pathbuf[64];
78 int pathsize = strlen(list->name) + 1;
83 /* need copy of path for strsep */
84 if (strlen(list->name) > sizeof(pathbuf) - 1) {
85 OBD_ALLOC(pathcopy, pathsize);
93 strcpy(pathcopy, list->name);
95 while (cur_root != NULL && (cur = strsep(&next, "/"))) {
96 if (*cur =='\0') /* skip double/trailing "/" */
99 proc = lprocfs_srch(cur_root, cur);
100 CDEBUG(D_OTHER, "cur_root=%s, cur=%s, next=%s, (%s)\n",
101 cur_root->name, cur, next,
102 (proc ? "exists" : "new"));
104 cur_root = (proc ? proc :
105 proc_mkdir(cur, cur_root));
106 } else if (proc == NULL) {
110 if (list->write_fptr)
112 proc = create_proc_entry(cur, mode, cur_root);
116 if (pathcopy != pathbuf)
117 OBD_FREE(pathcopy, pathsize);
119 if (cur_root == NULL || proc == NULL) {
120 CERROR("LprocFS: No memory to create /proc entry %s",
125 proc->read_proc = list->read_fptr;
126 proc->write_proc = list->write_fptr;
127 proc->data = (list->data ? list->data : data);
133 void lprocfs_remove(struct proc_dir_entry *root)
135 struct proc_dir_entry *temp = root;
136 struct proc_dir_entry *rm_entry;
137 struct proc_dir_entry *parent;
139 LASSERT(root != NULL);
140 parent = root->parent;
141 LASSERT(parent != NULL);
144 while (temp->subdir != NULL)
150 /* Memory corruption once caused this to fail, and
151 without this LASSERT we would loop here forever. */
152 LASSERTF(strlen(rm_entry->name) == rm_entry->namelen,
153 "0x%p %s/%s len %d\n", rm_entry, temp->name,
154 rm_entry->name, (int)strlen(rm_entry->name));
156 remove_proc_entry(rm_entry->name, rm_entry->parent);
162 struct proc_dir_entry *lprocfs_register(const char *name,
163 struct proc_dir_entry *parent,
164 struct lprocfs_vars *list, void *data)
166 struct proc_dir_entry *newchild;
168 newchild = lprocfs_srch(parent, name);
169 if (newchild != NULL) {
170 CERROR(" Lproc: Attempting to register %s more than once \n",
172 return ERR_PTR(-EALREADY);
175 newchild = proc_mkdir(name, parent);
176 if (newchild != NULL && list != NULL) {
177 int rc = lprocfs_add_vars(newchild, list, data);
179 lprocfs_remove(newchild);
186 /* Generic callbacks */
188 int lprocfs_rd_u64(char *page, char **start, off_t off,
189 int count, int *eof, void *data)
191 LASSERT(data != NULL);
193 return snprintf(page, count, LPU64"\n", *(__u64 *)data);
196 int lprocfs_rd_uuid(char *page, char **start, off_t off, int count,
197 int *eof, void *data)
199 struct obd_device *dev = (struct obd_device*)data;
201 LASSERT(dev != NULL);
203 return snprintf(page, count, "%s\n", dev->obd_uuid.uuid);
206 int lprocfs_rd_name(char *page, char **start, off_t off, int count,
207 int *eof, void* data)
209 struct obd_device *dev = (struct obd_device *)data;
211 LASSERT(dev != NULL);
212 LASSERT(dev->obd_name != NULL);
214 return snprintf(page, count, "%s\n", dev->obd_name);
217 int lprocfs_rd_fstype(char *page, char **start, off_t off, int count, int *eof,
220 struct obd_device *obd = (struct obd_device *)data;
222 LASSERT(obd != NULL);
223 LASSERT(obd->obd_fsops != NULL);
224 LASSERT(obd->obd_fsops->fs_type != NULL);
225 return snprintf(page, count, "%s\n", obd->obd_fsops->fs_type);
228 int lprocfs_rd_blksize(char *page, char **start, off_t off, int count,
229 int *eof, void *data)
231 struct obd_statfs osfs;
232 int rc = obd_statfs(data, &osfs, jiffies - HZ);
235 rc = snprintf(page, count, "%u\n", osfs.os_bsize);
240 int lprocfs_rd_kbytestotal(char *page, char **start, off_t off, int count,
241 int *eof, void *data)
243 struct obd_statfs osfs;
244 int rc = obd_statfs(data, &osfs, jiffies - HZ);
246 __u32 blk_size = osfs.os_bsize >> 10;
247 __u64 result = osfs.os_blocks;
249 while (blk_size >>= 1)
253 rc = snprintf(page, count, LPU64"\n", result);
258 int lprocfs_rd_kbytesfree(char *page, char **start, off_t off, int count,
259 int *eof, void *data)
261 struct obd_statfs osfs;
262 int rc = obd_statfs(data, &osfs, jiffies - HZ);
264 __u32 blk_size = osfs.os_bsize >> 10;
265 __u64 result = osfs.os_bfree;
267 while (blk_size >>= 1)
271 rc = snprintf(page, count, LPU64"\n", result);
276 int lprocfs_rd_kbytesavail(char *page, char **start, off_t off, int count,
277 int *eof, void *data)
279 struct obd_statfs osfs;
280 int rc = obd_statfs(data, &osfs, jiffies - HZ);
282 __u32 blk_size = osfs.os_bsize >> 10;
283 __u64 result = osfs.os_bavail;
285 while (blk_size >>= 1)
289 rc = snprintf(page, count, LPU64"\n", result);
294 int lprocfs_rd_filestotal(char *page, char **start, off_t off, int count,
295 int *eof, void *data)
297 struct obd_statfs osfs;
298 int rc = obd_statfs(data, &osfs, jiffies - HZ);
301 rc = snprintf(page, count, LPU64"\n", osfs.os_files);
307 int lprocfs_rd_filesfree(char *page, char **start, off_t off, int count,
308 int *eof, void *data)
310 struct obd_statfs osfs;
311 int rc = obd_statfs(data, &osfs, jiffies - HZ);
314 rc = snprintf(page, count, LPU64"\n", osfs.os_ffree);
319 int lprocfs_rd_server_uuid(char *page, char **start, off_t off, int count,
320 int *eof, void *data)
322 struct obd_device *obd = (struct obd_device *)data;
323 struct obd_import *imp;
324 char *imp_state_name = NULL;
326 LASSERT(obd != NULL);
327 imp = obd->u.cli.cl_import;
328 imp_state_name = ptlrpc_import_state_name(imp->imp_state);
330 return snprintf(page, count, "%s\t%s\n",
331 imp->imp_target_uuid.uuid, imp_state_name);
334 int lprocfs_rd_conn_uuid(char *page, char **start, off_t off, int count,
335 int *eof, void *data)
337 struct obd_device *obd = (struct obd_device*)data;
338 struct ptlrpc_connection *conn;
340 LASSERT(obd != NULL);
341 conn = obd->u.cli.cl_import->imp_connection;
342 LASSERT(conn != NULL);
344 return snprintf(page, count, "%s\n", conn->c_remote_uuid.uuid);
347 int lprocfs_rd_num_exports(char *page, char **start, off_t off, int count,
348 int *eof, void *data)
350 struct obd_device *obd = (struct obd_device*)data;
352 LASSERT(obd != NULL);
354 return snprintf(page, count, "%u\n", obd->obd_num_exports);
357 int lprocfs_rd_numrefs(char *page, char **start, off_t off, int count,
358 int *eof, void *data)
360 struct obd_type *class = (struct obd_type*) data;
362 LASSERT(class != NULL);
364 return snprintf(page, count, "%d\n", class->typ_refcnt);
367 int lprocfs_obd_attach(struct obd_device *dev, struct lprocfs_vars *list)
371 LASSERT(dev != NULL);
372 LASSERT(dev->obd_type != NULL);
373 LASSERT(dev->obd_type->typ_procroot != NULL);
375 dev->obd_proc_entry = lprocfs_register(dev->obd_name,
376 dev->obd_type->typ_procroot,
378 if (IS_ERR(dev->obd_proc_entry)) {
379 rc = PTR_ERR(dev->obd_proc_entry);
380 dev->obd_proc_entry = NULL;
385 int lprocfs_obd_detach(struct obd_device *dev)
387 if (dev && dev->obd_proc_entry) {
388 lprocfs_remove(dev->obd_proc_entry);
389 dev->obd_proc_entry = NULL;
394 struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num)
396 struct lprocfs_stats *stats;
397 struct lprocfs_percpu *percpu;
398 unsigned int percpusize;
404 OBD_ALLOC(stats, offsetof(typeof(*stats), ls_percpu[num_online_cpus()]));
408 percpusize = L1_CACHE_ALIGN(offsetof(typeof(*percpu), lp_cntr[num]));
409 stats->ls_percpu_size = num_online_cpus() * percpusize;
410 OBD_ALLOC(stats->ls_percpu[0], stats->ls_percpu_size);
411 if (stats->ls_percpu[0] == NULL) {
412 OBD_FREE(stats, offsetof(typeof(*stats),
413 ls_percpu[num_online_cpus()]));
418 for (i = 1; i < num_online_cpus(); i++)
419 stats->ls_percpu[i] = (void *)(stats->ls_percpu[i - 1]) +
425 void lprocfs_free_stats(struct lprocfs_stats *stats)
427 if (stats->ls_num == 0)
430 OBD_FREE(stats->ls_percpu[0], stats->ls_percpu_size);
431 OBD_FREE(stats, offsetof(typeof(*stats), ls_percpu[num_online_cpus()]));
434 /* Reset counter under lock */
435 int lprocfs_counter_write(struct file *file, const char *buffer,
436 unsigned long count, void *data)
442 static void *lprocfs_stats_seq_start(struct seq_file *p, loff_t *pos)
444 struct lprocfs_stats *stats = p->private;
445 /* return 1st cpu location */
446 return (*pos >= stats->ls_num) ? NULL :
447 &(stats->ls_percpu[0]->lp_cntr[*pos]);
450 static void lprocfs_stats_seq_stop(struct seq_file *p, void *v)
454 static void *lprocfs_stats_seq_next(struct seq_file *p, void *v, loff_t *pos)
456 struct lprocfs_stats *stats = p->private;
458 return (*pos >= stats->ls_num) ? NULL :
459 &(stats->ls_percpu[0]->lp_cntr[*pos]);
462 /* seq file export of one lprocfs counter */
463 static int lprocfs_stats_seq_show(struct seq_file *p, void *v)
465 struct lprocfs_stats *stats = p->private;
466 struct lprocfs_counter *cntr = v;
467 struct lprocfs_counter t, ret = { .lc_min = ~(__u64)0 };
470 if (cntr == &(stats->ls_percpu[0])->lp_cntr[0]) {
472 do_gettimeofday(&now);
473 rc = seq_printf(p, "%-25s %lu.%lu secs.usecs\n",
474 "snapshot_time", now.tv_sec, now.tv_usec);
478 idx = cntr - &(stats->ls_percpu[0])->lp_cntr[0];
480 for (i = 0; i < num_online_cpus(); i++) {
481 struct lprocfs_counter *percpu_cntr =
482 &(stats->ls_percpu[i])->lp_cntr[idx];
486 centry = atomic_read(&percpu_cntr->lc_cntl.la_entry);
487 t.lc_count = percpu_cntr->lc_count;
488 t.lc_sum = percpu_cntr->lc_sum;
489 t.lc_min = percpu_cntr->lc_min;
490 t.lc_max = percpu_cntr->lc_max;
491 t.lc_sumsquare = percpu_cntr->lc_sumsquare;
492 } while (centry != atomic_read(&percpu_cntr->lc_cntl.la_entry) &&
493 centry != atomic_read(&percpu_cntr->lc_cntl.la_exit));
494 ret.lc_count += t.lc_count;
495 ret.lc_sum += t.lc_sum;
496 if (t.lc_min < ret.lc_min)
497 ret.lc_min = t.lc_min;
498 if (t.lc_max > ret.lc_max)
499 ret.lc_max = t.lc_max;
500 ret.lc_sumsquare += t.lc_sumsquare;
503 rc = seq_printf(p, "%-25s "LPU64" samples [%s]", cntr->lc_name,
504 ret.lc_count, cntr->lc_units);
508 if ((cntr->lc_config & LPROCFS_CNTR_AVGMINMAX) && (ret.lc_count > 0)) {
509 rc = seq_printf(p, " "LPU64" "LPU64" "LPU64,
510 ret.lc_min, ret.lc_max, ret.lc_sum);
513 if (cntr->lc_config & LPROCFS_CNTR_STDDEV)
514 rc = seq_printf(p, " "LPU64, ret.lc_sumsquare);
518 rc = seq_printf(p, "\n");
520 return (rc < 0) ? rc : 0;
523 struct seq_operations lprocfs_stats_seq_sops = {
524 start: lprocfs_stats_seq_start,
525 stop: lprocfs_stats_seq_stop,
526 next: lprocfs_stats_seq_next,
527 show: lprocfs_stats_seq_show,
530 static int lprocfs_stats_seq_open(struct inode *inode, struct file *file)
532 struct proc_dir_entry *dp = PDE(inode);
533 struct seq_file *seq;
536 rc = seq_open(file, &lprocfs_stats_seq_sops);
539 seq = file->private_data;
540 seq->private = dp->data;
544 struct file_operations lprocfs_stats_seq_fops = {
545 .owner = THIS_MODULE,
546 .open = lprocfs_stats_seq_open,
549 .release = seq_release,
552 int lprocfs_register_stats(struct proc_dir_entry *root, const char *name,
553 struct lprocfs_stats *stats)
555 struct proc_dir_entry *entry;
556 LASSERT(root != NULL);
558 entry = create_proc_entry(name, 0444, root);
561 entry->proc_fops = &lprocfs_stats_seq_fops;
562 entry->data = (void *)stats;
563 entry->write_proc = lprocfs_counter_write;
567 void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
568 unsigned conf, const char *name, const char *units)
570 struct lprocfs_counter *c;
573 LASSERT(stats != NULL);
574 for (i = 0; i < num_online_cpus(); i++) {
575 c = &(stats->ls_percpu[i]->lp_cntr[index]);
577 c->lc_min = ~(__u64)0;
582 EXPORT_SYMBOL(lprocfs_counter_init);
584 #define LPROCFS_OBD_OP_INIT(base, stats, op) \
586 unsigned int coffset = base + OBD_COUNTER_OFFSET(op); \
587 LASSERT(coffset < stats->ls_num); \
588 lprocfs_counter_init(stats, coffset, 0, #op, "reqs"); \
591 int lprocfs_alloc_obd_stats(struct obd_device *obd, unsigned num_private_stats)
593 struct lprocfs_stats *stats;
594 unsigned int num_stats;
597 LASSERT(obd->obd_stats == NULL);
598 LASSERT(obd->obd_proc_entry != NULL);
599 LASSERT(obd->obd_cntr_base == 0);
601 num_stats = 1 + OBD_COUNTER_OFFSET(init_ea_size) +
603 stats = lprocfs_alloc_stats(num_stats);
607 LPROCFS_OBD_OP_INIT(num_private_stats, stats, iocontrol);
608 LPROCFS_OBD_OP_INIT(num_private_stats, stats, get_info);
609 LPROCFS_OBD_OP_INIT(num_private_stats, stats, set_info);
610 LPROCFS_OBD_OP_INIT(num_private_stats, stats, attach);
611 LPROCFS_OBD_OP_INIT(num_private_stats, stats, detach);
612 LPROCFS_OBD_OP_INIT(num_private_stats, stats, setup);
613 LPROCFS_OBD_OP_INIT(num_private_stats, stats, precleanup);
614 LPROCFS_OBD_OP_INIT(num_private_stats, stats, cleanup);
615 LPROCFS_OBD_OP_INIT(num_private_stats, stats, process_config);
616 LPROCFS_OBD_OP_INIT(num_private_stats, stats, postrecov);
617 LPROCFS_OBD_OP_INIT(num_private_stats, stats, add_conn);
618 LPROCFS_OBD_OP_INIT(num_private_stats, stats, del_conn);
619 LPROCFS_OBD_OP_INIT(num_private_stats, stats, connect);
620 LPROCFS_OBD_OP_INIT(num_private_stats, stats, connect_post);
621 LPROCFS_OBD_OP_INIT(num_private_stats, stats, disconnect);
622 LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs);
623 LPROCFS_OBD_OP_INIT(num_private_stats, stats, packmd);
624 LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpackmd);
625 LPROCFS_OBD_OP_INIT(num_private_stats, stats, revalidate_md);
626 LPROCFS_OBD_OP_INIT(num_private_stats, stats, preallocate);
627 LPROCFS_OBD_OP_INIT(num_private_stats, stats, create);
628 LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy);
629 LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr);
630 LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr);
631 LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr_async);
632 LPROCFS_OBD_OP_INIT(num_private_stats, stats, brw);
633 LPROCFS_OBD_OP_INIT(num_private_stats, stats, brw_async);
634 LPROCFS_OBD_OP_INIT(num_private_stats, stats, prep_async_page);
635 LPROCFS_OBD_OP_INIT(num_private_stats, stats, queue_async_io);
636 LPROCFS_OBD_OP_INIT(num_private_stats, stats, set_async_flags);
637 LPROCFS_OBD_OP_INIT(num_private_stats, stats, queue_group_io);
638 LPROCFS_OBD_OP_INIT(num_private_stats, stats, trigger_group_io);
639 LPROCFS_OBD_OP_INIT(num_private_stats, stats, teardown_async_page);
640 LPROCFS_OBD_OP_INIT(num_private_stats, stats, punch);
641 LPROCFS_OBD_OP_INIT(num_private_stats, stats, sync);
642 LPROCFS_OBD_OP_INIT(num_private_stats, stats, migrate);
643 LPROCFS_OBD_OP_INIT(num_private_stats, stats, copy);
644 LPROCFS_OBD_OP_INIT(num_private_stats, stats, iterate);
645 LPROCFS_OBD_OP_INIT(num_private_stats, stats, preprw);
646 LPROCFS_OBD_OP_INIT(num_private_stats, stats, commitrw);
647 LPROCFS_OBD_OP_INIT(num_private_stats, stats, do_cow);
648 LPROCFS_OBD_OP_INIT(num_private_stats, stats, write_extents);
649 LPROCFS_OBD_OP_INIT(num_private_stats, stats, enqueue);
650 LPROCFS_OBD_OP_INIT(num_private_stats, stats, match);
651 LPROCFS_OBD_OP_INIT(num_private_stats, stats, change_cbdata);
652 LPROCFS_OBD_OP_INIT(num_private_stats, stats, cancel);
653 LPROCFS_OBD_OP_INIT(num_private_stats, stats, cancel_unused);
654 LPROCFS_OBD_OP_INIT(num_private_stats, stats, san_preprw);
655 LPROCFS_OBD_OP_INIT(num_private_stats, stats, init_export);
656 LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy_export);
657 LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_init);
658 LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_finish);
659 LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_connect);
660 LPROCFS_OBD_OP_INIT(num_private_stats, stats, pin);
661 LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpin);
662 LPROCFS_OBD_OP_INIT(num_private_stats, stats, import_event);
663 LPROCFS_OBD_OP_INIT(num_private_stats, stats, notify);
664 LPROCFS_OBD_OP_INIT(num_private_stats, stats, init_ea_size);
666 for (i = num_private_stats; i < num_stats; i++) {
667 /* If this LBUGs, it is likely that an obd
668 * operation was added to struct obd_ops in
669 * <linux/obd.h>, and that the corresponding line item
670 * LPROCFS_OBD_OP_INIT(.., .., opname)
671 * is missing from the list above. */
672 if (stats->ls_percpu[0]->lp_cntr[i].lc_name == NULL) {
673 CERROR("Missing obd_stat initializer obd_op "
674 "operation at offset %d. Aborting.\n",
675 i - num_private_stats);
679 rc = lprocfs_register_stats(obd->obd_proc_entry, "stats", stats);
681 lprocfs_free_stats(stats);
683 obd->obd_stats = stats;
684 obd->obd_cntr_base = num_private_stats;
689 void lprocfs_free_obd_stats(struct obd_device *obd)
691 struct lprocfs_stats *stats = obd->obd_stats;
694 obd->obd_stats = NULL;
695 lprocfs_free_stats(stats);
699 int lprocfs_write_helper(const char *buffer, unsigned long count,
702 char kernbuf[20], *end;
704 if (count > (sizeof(kernbuf) - 1))
707 if (copy_from_user(kernbuf, buffer, count))
710 kernbuf[count] = '\0';
712 *val = simple_strtol(kernbuf, &end, 0);
719 int lprocfs_write_u64_helper(const char *buffer, unsigned long count,
722 char kernbuf[22], *end;
724 if (count > (sizeof(kernbuf) - 1))
727 if (copy_from_user(kernbuf, buffer, count))
730 kernbuf[count] = '\0';
732 *val = simple_strtoull(kernbuf, &end, 0);
739 int lprocfs_obd_seq_create(struct obd_device *dev, char *name, mode_t mode,
740 struct file_operations *seq_fops, void *data)
742 struct proc_dir_entry *entry;
745 entry = create_proc_entry(name, mode, dev->obd_proc_entry);
748 entry->proc_fops = seq_fops;
753 EXPORT_SYMBOL(lprocfs_obd_seq_create);
755 void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value)
759 if (value >= OBD_HIST_MAX)
760 value = OBD_HIST_MAX - 1;
762 spin_lock_irqsave(&oh->oh_lock, flags);
763 oh->oh_buckets[value]++;
764 spin_unlock_irqrestore(&oh->oh_lock, flags);
766 EXPORT_SYMBOL(lprocfs_oh_tally);
768 void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value)
772 for (val = 0; ((1 << val) < value) && (val <= OBD_HIST_MAX); val++)
775 lprocfs_oh_tally(oh, val);
777 EXPORT_SYMBOL(lprocfs_oh_tally_log2);
779 unsigned long lprocfs_oh_sum(struct obd_histogram *oh)
781 unsigned long ret = 0;
784 for (i = 0; i < OBD_HIST_MAX; i++)
785 ret += oh->oh_buckets[i];
788 EXPORT_SYMBOL(lprocfs_oh_sum);
790 void lprocfs_oh_clear(struct obd_histogram *oh)
793 spin_lock_irqsave(&oh->oh_lock, flags);
794 memset(oh->oh_buckets, 0, sizeof(oh->oh_buckets));
795 spin_unlock_irqrestore(&oh->oh_lock, flags);
797 EXPORT_SYMBOL(lprocfs_oh_clear);
799 /* XXX copied from ldlm/ldlm_lockd.c, copied from ptlrpc/service.c */
800 static long timeval_sub(struct timeval *large, struct timeval *small)
802 return ((large->tv_sec - small->tv_sec) * 1000000) +
803 (large->tv_usec - small->tv_usec);
805 void lprocfs_stime_record(struct obd_service_time *stime, struct timeval *large,
806 struct timeval *small)
808 long diff = timeval_sub(large, small);
814 stime->st_total_us += diff;
816 EXPORT_SYMBOL(lprocfs_stime_record);
818 unsigned long lprocfs_stime_avg_ms(struct obd_service_time *stime)
820 struct obd_service_time copy;
822 memcpy(©, stime, sizeof(copy));
823 if (copy.st_num > 0) {
824 do_div(copy.st_total_us, copy.st_num * 1000);
825 return (unsigned long)copy.st_total_us;
829 EXPORT_SYMBOL(lprocfs_stime_avg_ms);
831 unsigned long lprocfs_stime_avg_us(struct obd_service_time *stime)
833 struct obd_service_time copy;
836 memcpy(©, stime, sizeof(copy));
837 if (copy.st_num > 0) {
838 do_div(copy.st_total_us, copy.st_num);
839 remainder = do_div(copy.st_total_us, 1000);
840 return (unsigned long)remainder;
844 EXPORT_SYMBOL(lprocfs_stime_avg_us);
846 int lprocfs_obd_rd_recovery_status(char *page, char **start, off_t off,
847 int count, int *eof, void *data)
849 struct obd_device *obd = data;
851 connected = obd->obd_connected_clients,
852 max_recoverable = obd->obd_max_recoverable_clients,
853 recoverable = obd->obd_recoverable_clients,
854 completed = max_recoverable - recoverable,
855 queue_len = obd->obd_requests_queued_for_recovery,
856 replayed = obd->obd_replayed_requests;
857 __u64 next_transno = obd->obd_next_recovery_transno;
859 LASSERT(obd != NULL);
862 n = snprintf(page, count, "status: ");
863 page += n; len += n; count -= n;
864 if (obd->obd_max_recoverable_clients == 0) {
865 n = snprintf(page, count, "INACTIVE\n");
869 /* sampled unlocked, but really... */
870 if (obd->obd_recovering == 0) {
871 n = snprintf(page, count, "COMPLETE\n");
872 page += n; len += n; count -= n;
874 n = snprintf(page, count, "recovery_start: %lu\n",
875 obd->obd_recovery_start);
876 page += n; len += n; count -= n;
877 n = snprintf(page, count, "recovery_end: %lu\n",
878 obd->obd_recovery_end);
879 page += n; len += n; count -= n;
880 n = snprintf(page, count, "recovered_clients: %d\n",
882 page += n; len += n; count -= n;
883 n = snprintf(page, count, "unrecovered_clients: %d\n",
884 obd->obd_recoverable_clients);
885 page += n; len += n; count -= n;
886 n = snprintf(page, count, "last_transno: "LPD64"\n",
888 page += n; len += n; count -= n;
889 n = snprintf(page, count, "replayed_requests: %d\n", replayed);
893 n = snprintf(page, count, "RECOVERING\n");
894 page += n; len += n; count -= n;
895 n = snprintf(page, count, "recovery_start: %lu\n",
896 obd->obd_recovery_start);
897 page += n; len += n; count -= n;
898 n = snprintf(page, count, "connected_clients: %d/%d\n",
899 connected, max_recoverable);
900 page += n; len += n; count -= n;
901 n = snprintf(page, count, "completed_clients: %d/%d\n",
902 completed, max_recoverable);
903 page += n; len += n; count -= n;
904 n = snprintf(page, count, "replayed_requests: %d/??\n", replayed);
905 page += n; len += n; count -= n;
906 n = snprintf(page, count, "queued_requests: %d\n", queue_len);
907 page += n; len += n; count -= n;
908 n = snprintf(page, count, "next_transno: "LPD64"\n", next_transno);
911 EXPORT_SYMBOL(lprocfs_obd_rd_recovery_status);
914 EXPORT_SYMBOL(lprocfs_register);
915 EXPORT_SYMBOL(lprocfs_srch);
916 EXPORT_SYMBOL(lprocfs_remove);
917 EXPORT_SYMBOL(lprocfs_add_vars);
918 EXPORT_SYMBOL(lprocfs_obd_attach);
919 EXPORT_SYMBOL(lprocfs_obd_detach);
920 EXPORT_SYMBOL(lprocfs_alloc_stats);
921 EXPORT_SYMBOL(lprocfs_free_stats);
922 EXPORT_SYMBOL(lprocfs_register_stats);
923 EXPORT_SYMBOL(lprocfs_alloc_obd_stats);
924 EXPORT_SYMBOL(lprocfs_free_obd_stats);
926 EXPORT_SYMBOL(lprocfs_rd_u64);
927 EXPORT_SYMBOL(lprocfs_rd_uuid);
928 EXPORT_SYMBOL(lprocfs_rd_name);
929 EXPORT_SYMBOL(lprocfs_rd_fstype);
930 EXPORT_SYMBOL(lprocfs_rd_server_uuid);
931 EXPORT_SYMBOL(lprocfs_rd_conn_uuid);
932 EXPORT_SYMBOL(lprocfs_rd_num_exports);
933 EXPORT_SYMBOL(lprocfs_rd_numrefs);
935 EXPORT_SYMBOL(lprocfs_rd_blksize);
936 EXPORT_SYMBOL(lprocfs_rd_kbytestotal);
937 EXPORT_SYMBOL(lprocfs_rd_kbytesfree);
938 EXPORT_SYMBOL(lprocfs_rd_kbytesavail);
939 EXPORT_SYMBOL(lprocfs_rd_filestotal);
940 EXPORT_SYMBOL(lprocfs_rd_filesfree);
942 EXPORT_SYMBOL(lprocfs_write_helper);
943 EXPORT_SYMBOL(lprocfs_write_u64_helper);