1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/obdclass/lprocfs_status.c
38 * Author: Hariharan Thantry <thantry@users.sourceforge.net>
42 # define EXPORT_SYMTAB
44 #define DEBUG_SUBSYSTEM S_CLASS
47 # include <liblustre.h>
50 #include <obd_class.h>
51 #include <lprocfs_status.h>
52 #include <lustre_fsfilt.h>
53 #include <lustre_log.h>
54 #include <lustre/lustre_idl.h>
58 #define MAX_STRING_SIZE 128
60 /* for bug 10866, global variable */
61 DECLARE_RWSEM(_lprocfs_lock);
62 EXPORT_SYMBOL(_lprocfs_lock);
64 int lprocfs_seq_release(struct inode *inode, struct file *file)
67 return seq_release(inode, file);
69 EXPORT_SYMBOL(lprocfs_seq_release);
71 struct proc_dir_entry *lprocfs_srch(struct proc_dir_entry *head,
74 struct proc_dir_entry *temp;
81 while (temp != NULL) {
82 if (strcmp(temp->name, name) == 0) {
93 /* lprocfs API calls */
95 /* Function that emulates snprintf but also has the side effect of advancing
96 the page pointer for the next write into the buffer, incrementing the total
97 length written to the buffer, and decrementing the size left in the
99 static int lprocfs_obd_snprintf(char **page, int end, int *len,
100 const char *format, ...)
108 va_start(list, format);
109 n = vsnprintf(*page, end - *len, format, list);
112 *page += n; *len += n;
116 cfs_proc_dir_entry_t *lprocfs_add_simple(struct proc_dir_entry *root,
118 read_proc_t *read_proc,
119 write_proc_t *write_proc,
121 struct file_operations *fops)
123 cfs_proc_dir_entry_t *proc;
126 if (root == NULL || name == NULL)
127 return ERR_PTR(-EINVAL);
134 proc = create_proc_entry(name, mode, root);
136 CERROR("LprocFS: No memory to create /proc entry %s", name);
137 return ERR_PTR(-ENOMEM);
139 proc->read_proc = read_proc;
140 proc->write_proc = write_proc;
143 proc->proc_fops = fops;
147 struct proc_dir_entry *lprocfs_add_symlink(const char *name,
148 struct proc_dir_entry *parent, const char *dest)
150 struct proc_dir_entry *entry;
152 if (parent == NULL || dest == NULL)
155 entry = proc_symlink(name, parent, dest);
157 CERROR("LprocFS: Could not create symbolic link from %s to %s",
162 static ssize_t lprocfs_fops_read(struct file *f, char __user *buf,
163 size_t size, loff_t *ppos)
165 struct proc_dir_entry *dp = PDE(f->f_dentry->d_inode);
166 char *page, *start = NULL;
167 int rc = 0, eof = 1, count;
169 if (*ppos >= CFS_PAGE_SIZE)
172 page = (char *)__get_free_page(GFP_KERNEL);
177 OBD_FAIL_TIMEOUT(OBD_FAIL_LPROC_REMOVE, 10);
178 if (!dp->deleted && dp->read_proc)
179 rc = dp->read_proc(page, &start, *ppos, CFS_PAGE_SIZE,
185 /* for lustre proc read, the read count must be less than PAGE_SIZE */
194 start = page + *ppos;
195 } else if (start < page) {
199 count = (rc < size) ? rc : size;
200 if (copy_to_user(buf, start, count)) {
207 free_page((unsigned long)page);
211 static ssize_t lprocfs_fops_write(struct file *f, const char __user *buf,
212 size_t size, loff_t *ppos)
214 struct proc_dir_entry *dp = PDE(f->f_dentry->d_inode);
218 if (!dp->deleted && dp->write_proc)
219 rc = dp->write_proc(f, buf, size, dp->data);
224 static struct file_operations lprocfs_generic_fops = {
225 .owner = THIS_MODULE,
226 .read = lprocfs_fops_read,
227 .write = lprocfs_fops_write,
230 int lprocfs_evict_client_open(struct inode *inode, struct file *f)
232 struct proc_dir_entry *dp = PDE(f->f_dentry->d_inode);
233 struct obd_device *obd = dp->data;
235 atomic_inc(&obd->obd_evict_inprogress);
240 int lprocfs_evict_client_release(struct inode *inode, struct file *f)
242 struct proc_dir_entry *dp = PDE(f->f_dentry->d_inode);
243 struct obd_device *obd = dp->data;
245 atomic_dec(&obd->obd_evict_inprogress);
246 wake_up(&obd->obd_evict_inprogress_waitq);
251 struct file_operations lprocfs_evict_client_fops = {
252 .owner = THIS_MODULE,
253 .read = lprocfs_fops_read,
254 .write = lprocfs_fops_write,
255 .open = lprocfs_evict_client_open,
256 .release = lprocfs_evict_client_release,
258 EXPORT_SYMBOL(lprocfs_evict_client_fops);
263 * \param root [in] The parent proc entry on which new entry will be added.
264 * \param list [in] Array of proc entries to be added.
265 * \param data [in] The argument to be passed when entries read/write routines
266 * are called through /proc file.
268 * \retval 0 on success
271 int lprocfs_add_vars(struct proc_dir_entry *root, struct lprocfs_vars *list,
274 if (root == NULL || list == NULL)
277 while (list->name != NULL) {
278 struct proc_dir_entry *cur_root, *proc;
279 char *pathcopy, *cur, *next, pathbuf[64];
280 int pathsize = strlen(list->name) + 1;
285 /* need copy of path for strsep */
286 if (strlen(list->name) > sizeof(pathbuf) - 1) {
287 OBD_ALLOC(pathcopy, pathsize);
288 if (pathcopy == NULL)
295 strcpy(pathcopy, list->name);
297 while (cur_root != NULL && (cur = strsep(&next, "/"))) {
298 if (*cur =='\0') /* skip double/trailing "/" */
301 proc = lprocfs_srch(cur_root, cur);
302 CDEBUG(D_OTHER, "cur_root=%s, cur=%s, next=%s, (%s)\n",
303 cur_root->name, cur, next,
304 (proc ? "exists" : "new"));
306 cur_root = (proc ? proc :
307 proc_mkdir(cur, cur_root));
308 } else if (proc == NULL) {
310 if (list->proc_mode != 0000) {
311 mode = list->proc_mode;
315 if (list->write_fptr)
318 proc = create_proc_entry(cur, mode, cur_root);
322 if (pathcopy != pathbuf)
323 OBD_FREE(pathcopy, pathsize);
325 if (cur_root == NULL || proc == NULL) {
326 CERROR("LprocFS: No memory to create /proc entry %s",
332 proc->proc_fops = list->fops;
334 proc->proc_fops = &lprocfs_generic_fops;
335 proc->read_proc = list->read_fptr;
336 proc->write_proc = list->write_fptr;
337 proc->data = (list->data ? list->data : data);
343 void lprocfs_remove(struct proc_dir_entry **rooth)
345 struct proc_dir_entry *root = *rooth;
346 struct proc_dir_entry *temp = root;
347 struct proc_dir_entry *rm_entry;
348 struct proc_dir_entry *parent;
354 parent = root->parent;
355 LASSERT(parent != NULL);
356 LPROCFS_WRITE_ENTRY(); /* search vs remove race */
359 while (temp->subdir != NULL)
365 /* Memory corruption once caused this to fail, and
366 without this LASSERT we would loop here forever. */
367 LASSERTF(strlen(rm_entry->name) == rm_entry->namelen,
368 "0x%p %s/%s len %d\n", rm_entry, temp->name,
369 rm_entry->name, (int)strlen(rm_entry->name));
371 /* Now, the rm_entry->deleted flags is protected
372 * by _lprocfs_lock. */
373 rm_entry->data = NULL;
374 remove_proc_entry(rm_entry->name, temp);
378 LPROCFS_WRITE_EXIT();
381 void lprocfs_remove_proc_entry(const char *name, struct proc_dir_entry *parent)
383 LASSERT(parent != NULL);
384 remove_proc_entry(name, parent);
387 struct proc_dir_entry *lprocfs_register(const char *name,
388 struct proc_dir_entry *parent,
389 struct lprocfs_vars *list, void *data)
391 struct proc_dir_entry *newchild;
393 newchild = lprocfs_srch(parent, name);
394 if (newchild != NULL) {
395 CERROR(" Lproc: Attempting to register %s more than once \n",
397 return ERR_PTR(-EALREADY);
400 newchild = proc_mkdir(name, parent);
401 if (newchild != NULL && list != NULL) {
402 int rc = lprocfs_add_vars(newchild, list, data);
404 lprocfs_remove(&newchild);
411 /* Generic callbacks */
412 int lprocfs_rd_uint(char *page, char **start, off_t off,
413 int count, int *eof, void *data)
415 unsigned int *temp = data;
416 return snprintf(page, count, "%u\n", *temp);
419 int lprocfs_wr_uint(struct file *file, const char *buffer,
420 unsigned long count, void *data)
423 char dummy[MAX_STRING_SIZE + 1], *end;
426 dummy[MAX_STRING_SIZE] = '\0';
427 if (copy_from_user(dummy, buffer, MAX_STRING_SIZE))
430 tmp = simple_strtoul(dummy, &end, 0);
434 *p = (unsigned int)tmp;
438 int lprocfs_rd_u64(char *page, char **start, off_t off,
439 int count, int *eof, void *data)
441 LASSERT(data != NULL);
443 return snprintf(page, count, LPU64"\n", *(__u64 *)data);
446 int lprocfs_rd_atomic(char *page, char **start, off_t off,
447 int count, int *eof, void *data)
449 atomic_t *atom = data;
450 LASSERT(atom != NULL);
452 return snprintf(page, count, "%d\n", atomic_read(atom));
455 int lprocfs_wr_atomic(struct file *file, const char *buffer,
456 unsigned long count, void *data)
458 atomic_t *atm = data;
462 rc = lprocfs_write_helper(buffer, count, &val);
469 atomic_set(atm, val);
473 int lprocfs_rd_uuid(char *page, char **start, off_t off, int count,
474 int *eof, void *data)
476 struct obd_device *obd = data;
478 LASSERT(obd != NULL);
480 return snprintf(page, count, "%s\n", obd->obd_uuid.uuid);
483 int lprocfs_rd_name(char *page, char **start, off_t off, int count,
484 int *eof, void *data)
486 struct obd_device *dev = data;
488 LASSERT(dev != NULL);
489 LASSERT(dev->obd_name != NULL);
491 return snprintf(page, count, "%s\n", dev->obd_name);
494 int lprocfs_rd_fstype(char *page, char **start, off_t off, int count, int *eof,
497 struct obd_device *obd = data;
499 LASSERT(obd != NULL);
500 LASSERT(obd->obd_fsops != NULL);
501 LASSERT(obd->obd_fsops->fs_type != NULL);
502 return snprintf(page, count, "%s\n", obd->obd_fsops->fs_type);
505 int lprocfs_rd_blksize(char *page, char **start, off_t off, int count,
506 int *eof, void *data)
508 struct obd_statfs osfs;
509 int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ,
513 rc = snprintf(page, count, "%u\n", osfs.os_bsize);
518 int lprocfs_rd_kbytestotal(char *page, char **start, off_t off, int count,
519 int *eof, void *data)
521 struct obd_statfs osfs;
522 int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ,
525 __u32 blk_size = osfs.os_bsize >> 10;
526 __u64 result = osfs.os_blocks;
528 while (blk_size >>= 1)
532 rc = snprintf(page, count, LPU64"\n", result);
537 int lprocfs_rd_kbytesfree(char *page, char **start, off_t off, int count,
538 int *eof, void *data)
540 struct obd_statfs osfs;
541 int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ,
544 __u32 blk_size = osfs.os_bsize >> 10;
545 __u64 result = osfs.os_bfree;
547 while (blk_size >>= 1)
551 rc = snprintf(page, count, LPU64"\n", result);
556 int lprocfs_rd_kbytesavail(char *page, char **start, off_t off, int count,
557 int *eof, void *data)
559 struct obd_statfs osfs;
560 int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ,
563 __u32 blk_size = osfs.os_bsize >> 10;
564 __u64 result = osfs.os_bavail;
566 while (blk_size >>= 1)
570 rc = snprintf(page, count, LPU64"\n", result);
575 int lprocfs_rd_filestotal(char *page, char **start, off_t off, int count,
576 int *eof, void *data)
578 struct obd_statfs osfs;
579 int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ,
583 rc = snprintf(page, count, LPU64"\n", osfs.os_files);
589 int lprocfs_rd_filesfree(char *page, char **start, off_t off, int count,
590 int *eof, void *data)
592 struct obd_statfs osfs;
593 int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ,
597 rc = snprintf(page, count, LPU64"\n", osfs.os_ffree);
602 int lprocfs_rd_server_uuid(char *page, char **start, off_t off, int count,
603 int *eof, void *data)
605 struct obd_device *obd = data;
606 struct obd_import *imp;
607 char *imp_state_name = NULL;
610 LASSERT(obd != NULL);
611 LPROCFS_CLIMP_CHECK(obd);
612 imp = obd->u.cli.cl_import;
613 imp_state_name = ptlrpc_import_state_name(imp->imp_state);
615 rc = snprintf(page, count, "%s\t%s%s\n",
616 obd2cli_tgt(obd), imp_state_name,
617 imp->imp_deactive ? "\tDEACTIVATED" : "");
619 LPROCFS_CLIMP_EXIT(obd);
623 int lprocfs_rd_conn_uuid(char *page, char **start, off_t off, int count,
624 int *eof, void *data)
626 struct obd_device *obd = data;
627 struct ptlrpc_connection *conn;
630 LASSERT(obd != NULL);
632 LPROCFS_CLIMP_CHECK(obd);
633 conn = obd->u.cli.cl_import->imp_connection;
634 LASSERT(conn != NULL);
636 if (obd->u.cli.cl_import) {
637 rc = snprintf(page, count, "%s\n",
638 conn->c_remote_uuid.uuid);
640 rc = snprintf(page, count, "%s\n", "<none>");
643 LPROCFS_CLIMP_EXIT(obd);
647 #define flag2str(flag) \
648 if (imp->imp_##flag && max - len > 0) \
649 len += snprintf(str + len, max - len, " " #flag);
652 * Append a space separated list of current set flags to str.
654 static int obd_import_flags2str(struct obd_import *imp, char *str,
659 if (imp->imp_obd->obd_no_recov)
660 len += snprintf(str, max - len, " no_recov");
664 flag2str(replayable);
667 flag2str(last_recon);
672 int lprocfs_rd_import(char *page, char **start, off_t off, int count,
673 int *eof, void *data)
675 struct obd_device *obd = (struct obd_device *)data;
676 struct obd_import *imp;
677 char *imp_state_name = NULL;
680 LASSERT(obd != NULL);
681 LPROCFS_CLIMP_CHECK(obd);
682 imp = obd->u.cli.cl_import;
683 imp_state_name = ptlrpc_import_state_name(imp->imp_state);
686 rc = snprintf(page, count,
691 " unregistering: %u\n"
695 " last_replay_transno: "LPU64"\n"
696 " peer_committed_transno: "LPU64"\n"
697 " last_trasno_checked: "LPU64"\n"
700 obd2cli_tgt(obd), imp->imp_connection->c_remote_uuid.uuid,
702 atomic_read(&imp->imp_inflight),
703 atomic_read(&imp->imp_unregistering),
706 atomic_read(&imp->imp_inval_count),
707 imp->imp_last_replay_transno,
708 imp->imp_peer_committed_transno,
709 imp->imp_last_transno_checked);
710 rc += obd_import_flags2str(imp, page + rc, count - rc);
711 rc += snprintf(page+rc, count - rc, "\n");
712 LPROCFS_CLIMP_EXIT(obd);
716 int lprocfs_at_hist_helper(char *page, int count, int rc,
717 struct adaptive_timeout *at)
720 for (i = 0; i < AT_BINS; i++)
721 rc += snprintf(page + rc, count - rc, "%3u ", at->at_hist[i]);
722 rc += snprintf(page + rc, count - rc, "\n");
726 /* See also ptlrpc_lprocfs_rd_timeouts */
727 int lprocfs_rd_timeouts(char *page, char **start, off_t off, int count,
728 int *eof, void *data)
730 struct obd_device *obd = (struct obd_device *)data;
731 struct obd_import *imp;
732 unsigned int cur, worst;
737 LASSERT(obd != NULL);
738 LPROCFS_CLIMP_CHECK(obd);
739 imp = obd->u.cli.cl_import;
742 now = cfs_time_current_sec();
744 /* Some network health info for kicks */
745 s2dhms(&ts, now - imp->imp_last_reply_time);
746 rc += snprintf(page + rc, count - rc,
747 "%-10s : %ld, "DHMS_FMT" ago\n",
748 "last reply", imp->imp_last_reply_time, DHMS_VARS(&ts));
750 cur = at_get(&imp->imp_at.iat_net_latency);
751 worst = imp->imp_at.iat_net_latency.at_worst_ever;
752 worstt = imp->imp_at.iat_net_latency.at_worst_time;
753 s2dhms(&ts, now - worstt);
754 rc += snprintf(page + rc, count - rc,
755 "%-10s : cur %3u worst %3u (at %ld, "DHMS_FMT" ago) ",
756 "network", cur, worst, worstt, DHMS_VARS(&ts));
757 rc = lprocfs_at_hist_helper(page, count, rc,
758 &imp->imp_at.iat_net_latency);
760 for(i = 0; i < IMP_AT_MAX_PORTALS; i++) {
761 if (imp->imp_at.iat_portal[i] == 0)
763 cur = at_get(&imp->imp_at.iat_service_estimate[i]);
764 worst = imp->imp_at.iat_service_estimate[i].at_worst_ever;
765 worstt = imp->imp_at.iat_service_estimate[i].at_worst_time;
766 s2dhms(&ts, now - worstt);
767 rc += snprintf(page + rc, count - rc,
768 "portal %-2d : cur %3u worst %3u (at %ld, "
769 DHMS_FMT" ago) ", imp->imp_at.iat_portal[i],
770 cur, worst, worstt, DHMS_VARS(&ts));
771 rc = lprocfs_at_hist_helper(page, count, rc,
772 &imp->imp_at.iat_service_estimate[i]);
775 LPROCFS_CLIMP_EXIT(obd);
779 static const char *obd_connect_names[] = {
806 "mds_mds_connection",
809 "alt_checksum_algorithm",
813 "", /* reserved for simplified interop */
818 int lprocfs_rd_connect_flags(char *page, char **start, off_t off,
819 int count, int *eof, void *data)
821 struct obd_device *obd = data;
822 __u64 mask = 1, flags;
825 LPROCFS_CLIMP_CHECK(obd);
826 flags = obd->u.cli.cl_import->imp_connect_data.ocd_connect_flags;
827 ret = snprintf(page, count, "flags="LPX64"\n", flags);
828 for (i = 0; obd_connect_names[i] != NULL; i++, mask <<= 1) {
830 ret += snprintf(page + ret, count - ret, "%s\n",
831 obd_connect_names[i]);
833 if (flags & ~(mask - 1))
834 ret += snprintf(page + ret, count - ret,
835 "unknown flags "LPX64"\n", flags & ~(mask - 1));
837 LPROCFS_CLIMP_EXIT(obd);
840 EXPORT_SYMBOL(lprocfs_rd_connect_flags);
842 int lprocfs_rd_num_exports(char *page, char **start, off_t off, int count,
843 int *eof, void *data)
845 struct obd_device *obd = data;
847 LASSERT(obd != NULL);
849 return snprintf(page, count, "%u\n", obd->obd_num_exports);
852 int lprocfs_rd_numrefs(char *page, char **start, off_t off, int count,
853 int *eof, void *data)
855 struct obd_type *class = (struct obd_type*) data;
857 LASSERT(class != NULL);
859 return snprintf(page, count, "%d\n", class->typ_refcnt);
862 int lprocfs_obd_setup(struct obd_device *obd, struct lprocfs_vars *list)
866 LASSERT(obd != NULL);
867 LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
868 LASSERT(obd->obd_type->typ_procroot != NULL);
870 obd->obd_proc_entry = lprocfs_register(obd->obd_name,
871 obd->obd_type->typ_procroot,
873 if (IS_ERR(obd->obd_proc_entry)) {
874 rc = PTR_ERR(obd->obd_proc_entry);
875 CERROR("error %d setting up lprocfs for %s\n",rc,obd->obd_name);
876 obd->obd_proc_entry = NULL;
881 int lprocfs_obd_cleanup(struct obd_device *obd)
885 if (obd->obd_proc_exports_entry) {
886 /* Should be no exports left */
887 LASSERT(obd->obd_proc_exports_entry->subdir == NULL);
888 lprocfs_remove(&obd->obd_proc_exports_entry);
889 obd->obd_proc_exports_entry = NULL;
891 lprocfs_remove(&obd->obd_proc_entry);
895 static void lprocfs_free_client_stats(struct nid_stat *client_stat)
897 CDEBUG(D_CONFIG, "stat %p - data %p/%p/%p\n", client_stat,
898 client_stat->nid_proc, client_stat->nid_stats,
899 client_stat->nid_brw_stats);
901 LASSERTF(client_stat->nid_exp_ref_count == 0, "count %d\n",
902 client_stat->nid_exp_ref_count);
904 hlist_del_init(&client_stat->nid_hash);
906 if (client_stat->nid_proc)
907 lprocfs_remove(&client_stat->nid_proc);
909 if (client_stat->nid_stats)
910 lprocfs_free_stats(&client_stat->nid_stats);
912 if (client_stat->nid_brw_stats)
913 OBD_FREE_PTR(client_stat->nid_brw_stats);
915 if (client_stat->nid_ldlm_stats)
916 lprocfs_free_stats(&client_stat->nid_ldlm_stats);
918 OBD_FREE_PTR(client_stat);
923 void lprocfs_free_per_client_stats(struct obd_device *obd)
925 struct nid_stat *stat;
928 /* we need extra list - because hash_exit called to early */
929 /* not need locking because all clients is died */
930 while(!list_empty(&obd->obd_nid_stats)) {
931 stat = list_entry(obd->obd_nid_stats.next,
932 struct nid_stat, nid_list);
933 list_del_init(&stat->nid_list);
934 lprocfs_free_client_stats(stat);
940 struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num,
941 enum lprocfs_stats_flags flags)
943 struct lprocfs_stats *stats;
944 unsigned int percpusize;
946 unsigned int num_cpu;
951 if (flags & LPROCFS_STATS_FLAG_NOPERCPU)
954 num_cpu = num_possible_cpus();
956 OBD_ALLOC(stats, offsetof(typeof(*stats), ls_percpu[num_cpu]));
960 if (flags & LPROCFS_STATS_FLAG_NOPERCPU) {
961 stats->ls_flags = flags;
962 spin_lock_init(&stats->ls_lock);
963 /* Use this lock only if there are no percpu areas */
968 percpusize = offsetof(struct lprocfs_percpu, lp_cntr[num]);
970 percpusize = L1_CACHE_ALIGN(percpusize);
972 for (i = 0; i < num_cpu; i++) {
973 OBD_ALLOC(stats->ls_percpu[i], percpusize);
974 if (stats->ls_percpu[i] == NULL) {
975 for (j = 0; j < i; j++) {
976 OBD_FREE(stats->ls_percpu[j], percpusize);
977 stats->ls_percpu[j] = NULL;
982 if (stats->ls_percpu[0] == NULL) {
983 OBD_FREE(stats, offsetof(typeof(*stats),
984 ls_percpu[num_cpu]));
992 void lprocfs_free_stats(struct lprocfs_stats **statsh)
994 struct lprocfs_stats *stats = *statsh;
995 unsigned int num_cpu;
996 unsigned int percpusize;
999 if (stats == NULL || stats->ls_num == 0)
1003 if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU)
1006 num_cpu = num_possible_cpus();
1008 percpusize = offsetof(struct lprocfs_percpu, lp_cntr[stats->ls_num]);
1010 percpusize = L1_CACHE_ALIGN(percpusize);
1011 for (i = 0; i < num_cpu; i++)
1012 OBD_FREE(stats->ls_percpu[i], percpusize);
1013 OBD_FREE(stats, offsetof(typeof(*stats), ls_percpu[num_cpu]));
1016 void lprocfs_clear_stats(struct lprocfs_stats *stats)
1018 struct lprocfs_counter *percpu_cntr;
1020 unsigned int num_cpu;
1022 num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU);
1024 for (i = 0; i < num_cpu; i++) {
1025 for (j = 0; j < stats->ls_num; j++) {
1026 percpu_cntr = &(stats->ls_percpu[i])->lp_cntr[j];
1027 atomic_inc(&percpu_cntr->lc_cntl.la_entry);
1028 percpu_cntr->lc_count = 0;
1029 percpu_cntr->lc_sum = 0;
1030 percpu_cntr->lc_min = LC_MIN_INIT;
1031 percpu_cntr->lc_max = 0;
1032 percpu_cntr->lc_sumsquare = 0;
1033 atomic_inc(&percpu_cntr->lc_cntl.la_exit);
1037 lprocfs_stats_unlock(stats);
1040 static ssize_t lprocfs_stats_seq_write(struct file *file, const char *buf,
1041 size_t len, loff_t *off)
1043 struct seq_file *seq = file->private_data;
1044 struct lprocfs_stats *stats = seq->private;
1046 lprocfs_clear_stats(stats);
1051 static void *lprocfs_stats_seq_start(struct seq_file *p, loff_t *pos)
1053 struct lprocfs_stats *stats = p->private;
1054 /* return 1st cpu location */
1055 return (*pos >= stats->ls_num) ? NULL :
1056 &(stats->ls_percpu[0]->lp_cntr[*pos]);
1059 static void lprocfs_stats_seq_stop(struct seq_file *p, void *v)
1063 static void *lprocfs_stats_seq_next(struct seq_file *p, void *v, loff_t *pos)
1065 struct lprocfs_stats *stats = p->private;
1067 return (*pos >= stats->ls_num) ? NULL :
1068 &(stats->ls_percpu[0]->lp_cntr[*pos]);
1071 /* seq file export of one lprocfs counter */
1072 static int lprocfs_stats_seq_show(struct seq_file *p, void *v)
1074 struct lprocfs_stats *stats = p->private;
1075 struct lprocfs_counter *cntr = v;
1076 struct lprocfs_counter t, ret = { .lc_min = LC_MIN_INIT };
1078 unsigned int num_cpu;
1080 if (cntr == &(stats->ls_percpu[0])->lp_cntr[0]) {
1082 do_gettimeofday(&now);
1083 rc = seq_printf(p, "%-25s %lu.%lu secs.usecs\n",
1084 "snapshot_time", now.tv_sec, now.tv_usec);
1088 idx = cntr - &(stats->ls_percpu[0])->lp_cntr[0];
1090 if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU)
1093 num_cpu = num_possible_cpus();
1095 for (i = 0; i < num_cpu; i++) {
1096 struct lprocfs_counter *percpu_cntr =
1097 &(stats->ls_percpu[i])->lp_cntr[idx];
1101 centry = atomic_read(&percpu_cntr->lc_cntl.la_entry);
1102 t.lc_count = percpu_cntr->lc_count;
1103 t.lc_sum = percpu_cntr->lc_sum;
1104 t.lc_min = percpu_cntr->lc_min;
1105 t.lc_max = percpu_cntr->lc_max;
1106 t.lc_sumsquare = percpu_cntr->lc_sumsquare;
1107 } while (centry != atomic_read(&percpu_cntr->lc_cntl.la_entry) &&
1108 centry != atomic_read(&percpu_cntr->lc_cntl.la_exit));
1109 ret.lc_count += t.lc_count;
1110 ret.lc_sum += t.lc_sum;
1111 if (t.lc_min < ret.lc_min)
1112 ret.lc_min = t.lc_min;
1113 if (t.lc_max > ret.lc_max)
1114 ret.lc_max = t.lc_max;
1115 ret.lc_sumsquare += t.lc_sumsquare;
1118 if (ret.lc_count == 0)
1121 rc = seq_printf(p, "%-25s "LPD64" samples [%s]", cntr->lc_name,
1122 ret.lc_count, cntr->lc_units);
1126 if ((cntr->lc_config & LPROCFS_CNTR_AVGMINMAX) && (ret.lc_count > 0)) {
1127 rc = seq_printf(p, " "LPD64" "LPD64" "LPD64,
1128 ret.lc_min, ret.lc_max, ret.lc_sum);
1131 if (cntr->lc_config & LPROCFS_CNTR_STDDEV)
1132 rc = seq_printf(p, " "LPD64, ret.lc_sumsquare);
1136 rc = seq_printf(p, "\n");
1138 return (rc < 0) ? rc : 0;
1141 struct seq_operations lprocfs_stats_seq_sops = {
1142 start: lprocfs_stats_seq_start,
1143 stop: lprocfs_stats_seq_stop,
1144 next: lprocfs_stats_seq_next,
1145 show: lprocfs_stats_seq_show,
1148 static int lprocfs_stats_seq_open(struct inode *inode, struct file *file)
1150 struct proc_dir_entry *dp = PDE(inode);
1151 struct seq_file *seq;
1154 LPROCFS_ENTRY_AND_CHECK(dp);
1155 rc = seq_open(file, &lprocfs_stats_seq_sops);
1160 seq = file->private_data;
1161 seq->private = dp->data;
1165 struct file_operations lprocfs_stats_seq_fops = {
1166 .owner = THIS_MODULE,
1167 .open = lprocfs_stats_seq_open,
1169 .write = lprocfs_stats_seq_write,
1170 .llseek = seq_lseek,
1171 .release = lprocfs_seq_release,
1174 int lprocfs_register_stats(struct proc_dir_entry *root, const char *name,
1175 struct lprocfs_stats *stats)
1177 struct proc_dir_entry *entry;
1178 LASSERT(root != NULL);
1180 entry = create_proc_entry(name, 0644, root);
1183 entry->proc_fops = &lprocfs_stats_seq_fops;
1184 entry->data = stats;
1188 void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
1189 unsigned conf, const char *name, const char *units)
1191 struct lprocfs_counter *c;
1193 unsigned int num_cpu;
1195 LASSERT(stats != NULL);
1197 num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU);
1199 for (i = 0; i < num_cpu; i++) {
1200 c = &(stats->ls_percpu[i]->lp_cntr[index]);
1201 c->lc_config = conf;
1204 c->lc_min = LC_MIN_INIT;
1207 c->lc_units = units;
1210 lprocfs_stats_unlock(stats);
1212 EXPORT_SYMBOL(lprocfs_counter_init);
1214 #define LPROCFS_OBD_OP_INIT(base, stats, op) \
1216 unsigned int coffset = base + OBD_COUNTER_OFFSET(op); \
1217 LASSERT(coffset < stats->ls_num); \
1218 lprocfs_counter_init(stats, coffset, 0, #op, "reqs"); \
1221 void lprocfs_init_ops_stats(int num_private_stats, struct lprocfs_stats *stats)
1223 LPROCFS_OBD_OP_INIT(num_private_stats, stats, iocontrol);
1224 LPROCFS_OBD_OP_INIT(num_private_stats, stats, get_info);
1225 LPROCFS_OBD_OP_INIT(num_private_stats, stats, set_info_async);
1226 LPROCFS_OBD_OP_INIT(num_private_stats, stats, attach);
1227 LPROCFS_OBD_OP_INIT(num_private_stats, stats, detach);
1228 LPROCFS_OBD_OP_INIT(num_private_stats, stats, setup);
1229 LPROCFS_OBD_OP_INIT(num_private_stats, stats, precleanup);
1230 LPROCFS_OBD_OP_INIT(num_private_stats, stats, cleanup);
1231 LPROCFS_OBD_OP_INIT(num_private_stats, stats, process_config);
1232 LPROCFS_OBD_OP_INIT(num_private_stats, stats, postrecov);
1233 LPROCFS_OBD_OP_INIT(num_private_stats, stats, add_conn);
1234 LPROCFS_OBD_OP_INIT(num_private_stats, stats, del_conn);
1235 LPROCFS_OBD_OP_INIT(num_private_stats, stats, connect);
1236 LPROCFS_OBD_OP_INIT(num_private_stats, stats, reconnect);
1237 LPROCFS_OBD_OP_INIT(num_private_stats, stats, disconnect);
1238 LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_init);
1239 LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_fini);
1240 LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_alloc);
1241 LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_delete);
1242 LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs);
1243 LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs_async);
1244 LPROCFS_OBD_OP_INIT(num_private_stats, stats, packmd);
1245 LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpackmd);
1246 LPROCFS_OBD_OP_INIT(num_private_stats, stats, checkmd);
1247 LPROCFS_OBD_OP_INIT(num_private_stats, stats, preallocate);
1248 LPROCFS_OBD_OP_INIT(num_private_stats, stats, precreate);
1249 LPROCFS_OBD_OP_INIT(num_private_stats, stats, create);
1250 LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy);
1251 LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr);
1252 LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr_async);
1253 LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr);
1254 LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr_async);
1255 LPROCFS_OBD_OP_INIT(num_private_stats, stats, brw);
1256 LPROCFS_OBD_OP_INIT(num_private_stats, stats, merge_lvb);
1257 LPROCFS_OBD_OP_INIT(num_private_stats, stats, adjust_kms);
1258 LPROCFS_OBD_OP_INIT(num_private_stats, stats, punch);
1259 LPROCFS_OBD_OP_INIT(num_private_stats, stats, sync);
1260 LPROCFS_OBD_OP_INIT(num_private_stats, stats, migrate);
1261 LPROCFS_OBD_OP_INIT(num_private_stats, stats, copy);
1262 LPROCFS_OBD_OP_INIT(num_private_stats, stats, iterate);
1263 LPROCFS_OBD_OP_INIT(num_private_stats, stats, preprw);
1264 LPROCFS_OBD_OP_INIT(num_private_stats, stats, commitrw);
1265 LPROCFS_OBD_OP_INIT(num_private_stats, stats, enqueue);
1266 LPROCFS_OBD_OP_INIT(num_private_stats, stats, change_cbdata);
1267 LPROCFS_OBD_OP_INIT(num_private_stats, stats, cancel);
1268 LPROCFS_OBD_OP_INIT(num_private_stats, stats, cancel_unused);
1269 LPROCFS_OBD_OP_INIT(num_private_stats, stats, init_export);
1270 LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy_export);
1271 LPROCFS_OBD_OP_INIT(num_private_stats, stats, extent_calc);
1272 LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_init);
1273 LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_connect);
1274 LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_finish);
1275 LPROCFS_OBD_OP_INIT(num_private_stats, stats, pin);
1276 LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpin);
1277 LPROCFS_OBD_OP_INIT(num_private_stats, stats, import_event);
1278 LPROCFS_OBD_OP_INIT(num_private_stats, stats, notify);
1279 LPROCFS_OBD_OP_INIT(num_private_stats, stats, health_check);
1280 LPROCFS_OBD_OP_INIT(num_private_stats, stats, get_uuid);
1281 LPROCFS_OBD_OP_INIT(num_private_stats, stats, quotacheck);
1282 LPROCFS_OBD_OP_INIT(num_private_stats, stats, quotactl);
1283 LPROCFS_OBD_OP_INIT(num_private_stats, stats, quota_adjust_qunit);
1284 LPROCFS_OBD_OP_INIT(num_private_stats, stats, ping);
1285 LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_new);
1286 LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_rem);
1287 LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_add);
1288 LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_del);
1291 int lprocfs_alloc_obd_stats(struct obd_device *obd, unsigned num_private_stats)
1293 struct lprocfs_stats *stats;
1294 unsigned int num_stats;
1297 LASSERT(obd->obd_stats == NULL);
1298 LASSERT(obd->obd_proc_entry != NULL);
1299 LASSERT(obd->obd_cntr_base == 0);
1301 num_stats = ((int)sizeof(*obd->obd_type->typ_dt_ops) / sizeof(void *)) +
1302 num_private_stats - 1 /* o_owner */;
1303 stats = lprocfs_alloc_stats(num_stats, 0);
1307 lprocfs_init_ops_stats(num_private_stats, stats);
1309 for (i = num_private_stats; i < num_stats; i++) {
1310 /* If this LBUGs, it is likely that an obd
1311 * operation was added to struct obd_ops in
1312 * <obd.h>, and that the corresponding line item
1313 * LPROCFS_OBD_OP_INIT(.., .., opname)
1314 * is missing from the list above. */
1315 LASSERTF(stats->ls_percpu[0]->lp_cntr[i].lc_name != NULL,
1316 "Missing obd_stat initializer obd_op "
1317 "operation at offset %d.\n", i - num_private_stats);
1319 rc = lprocfs_register_stats(obd->obd_proc_entry, "stats", stats);
1321 lprocfs_free_stats(&stats);
1323 obd->obd_stats = stats;
1324 obd->obd_cntr_base = num_private_stats;
1329 void lprocfs_free_obd_stats(struct obd_device *obd)
1332 lprocfs_free_stats(&obd->obd_stats);
1335 #define LPROCFS_MD_OP_INIT(base, stats, op) \
1337 unsigned int coffset = base + MD_COUNTER_OFFSET(op); \
1338 LASSERT(coffset < stats->ls_num); \
1339 lprocfs_counter_init(stats, coffset, 0, #op, "reqs"); \
1342 int lprocfs_alloc_md_stats(struct obd_device *obd,
1343 unsigned num_private_stats)
1345 struct lprocfs_stats *stats;
1346 unsigned int num_stats;
1349 LASSERT(obd->md_stats == NULL);
1350 LASSERT(obd->obd_proc_entry != NULL);
1351 LASSERT(obd->md_cntr_base == 0);
1353 num_stats = 1 + MD_COUNTER_OFFSET(revalidate_lock) +
1355 stats = lprocfs_alloc_stats(num_stats, 0);
1359 LPROCFS_MD_OP_INIT(num_private_stats, stats, getstatus);
1360 LPROCFS_MD_OP_INIT(num_private_stats, stats, change_cbdata);
1361 LPROCFS_MD_OP_INIT(num_private_stats, stats, close);
1362 LPROCFS_MD_OP_INIT(num_private_stats, stats, create);
1363 LPROCFS_MD_OP_INIT(num_private_stats, stats, done_writing);
1364 LPROCFS_MD_OP_INIT(num_private_stats, stats, enqueue);
1365 LPROCFS_MD_OP_INIT(num_private_stats, stats, getattr);
1366 LPROCFS_MD_OP_INIT(num_private_stats, stats, getattr_name);
1367 LPROCFS_MD_OP_INIT(num_private_stats, stats, intent_lock);
1368 LPROCFS_MD_OP_INIT(num_private_stats, stats, link);
1369 LPROCFS_MD_OP_INIT(num_private_stats, stats, rename);
1370 LPROCFS_MD_OP_INIT(num_private_stats, stats, is_subdir);
1371 LPROCFS_MD_OP_INIT(num_private_stats, stats, setattr);
1372 LPROCFS_MD_OP_INIT(num_private_stats, stats, sync);
1373 LPROCFS_MD_OP_INIT(num_private_stats, stats, readpage);
1374 LPROCFS_MD_OP_INIT(num_private_stats, stats, unlink);
1375 LPROCFS_MD_OP_INIT(num_private_stats, stats, setxattr);
1376 LPROCFS_MD_OP_INIT(num_private_stats, stats, getxattr);
1377 LPROCFS_MD_OP_INIT(num_private_stats, stats, init_ea_size);
1378 LPROCFS_MD_OP_INIT(num_private_stats, stats, get_lustre_md);
1379 LPROCFS_MD_OP_INIT(num_private_stats, stats, free_lustre_md);
1380 LPROCFS_MD_OP_INIT(num_private_stats, stats, set_open_replay_data);
1381 LPROCFS_MD_OP_INIT(num_private_stats, stats, clear_open_replay_data);
1382 LPROCFS_MD_OP_INIT(num_private_stats, stats, set_lock_data);
1383 LPROCFS_MD_OP_INIT(num_private_stats, stats, lock_match);
1384 LPROCFS_MD_OP_INIT(num_private_stats, stats, cancel_unused);
1385 LPROCFS_MD_OP_INIT(num_private_stats, stats, renew_capa);
1386 LPROCFS_MD_OP_INIT(num_private_stats, stats, unpack_capa);
1387 LPROCFS_MD_OP_INIT(num_private_stats, stats, get_remote_perm);
1388 LPROCFS_MD_OP_INIT(num_private_stats, stats, intent_getattr_async);
1389 LPROCFS_MD_OP_INIT(num_private_stats, stats, revalidate_lock);
1391 for (i = num_private_stats; i < num_stats; i++) {
1392 if (stats->ls_percpu[0]->lp_cntr[i].lc_name == NULL) {
1393 CERROR("Missing md_stat initializer md_op "
1394 "operation at offset %d. Aborting.\n",
1395 i - num_private_stats);
1399 rc = lprocfs_register_stats(obd->obd_proc_entry, "md_stats", stats);
1401 lprocfs_free_stats(&stats);
1403 obd->md_stats = stats;
1404 obd->md_cntr_base = num_private_stats;
1409 void lprocfs_free_md_stats(struct obd_device *obd)
1411 struct lprocfs_stats *stats = obd->md_stats;
1413 if (stats != NULL) {
1414 obd->md_stats = NULL;
1415 obd->md_cntr_base = 0;
1416 lprocfs_free_stats(&stats);
1420 void lprocfs_init_ldlm_stats(struct lprocfs_stats *ldlm_stats)
1422 lprocfs_counter_init(ldlm_stats,
1423 LDLM_ENQUEUE - LDLM_FIRST_OPC,
1424 0, "ldlm_enqueue", "reqs");
1425 lprocfs_counter_init(ldlm_stats,
1426 LDLM_CONVERT - LDLM_FIRST_OPC,
1427 0, "ldlm_convert", "reqs");
1428 lprocfs_counter_init(ldlm_stats,
1429 LDLM_CANCEL - LDLM_FIRST_OPC,
1430 0, "ldlm_cancel", "reqs");
1431 lprocfs_counter_init(ldlm_stats,
1432 LDLM_BL_CALLBACK - LDLM_FIRST_OPC,
1433 0, "ldlm_bl_callback", "reqs");
1434 lprocfs_counter_init(ldlm_stats,
1435 LDLM_CP_CALLBACK - LDLM_FIRST_OPC,
1436 0, "ldlm_cp_callback", "reqs");
1437 lprocfs_counter_init(ldlm_stats,
1438 LDLM_GL_CALLBACK - LDLM_FIRST_OPC,
1439 0, "ldlm_gl_callback", "reqs");
1442 int lprocfs_exp_rd_nid(char *page, char **start, off_t off, int count,
1443 int *eof, void *data)
1445 struct obd_export *exp = data;
1446 LASSERT(exp != NULL);
1448 return snprintf(page, count, "%s\n", obd_export_nid2str(exp));
1451 struct exp_uuid_cb_data {
1459 lprocfs_exp_rd_cb_data_init(struct exp_uuid_cb_data *cb_data, char *page,
1460 int count, int *eof, int *len)
1462 cb_data->page = page;
1463 cb_data->count = count;
1468 void lprocfs_exp_print_uuid(void *obj, void *cb_data)
1470 struct obd_export *exp = (struct obd_export *)obj;
1471 struct exp_uuid_cb_data *data = (struct exp_uuid_cb_data *)cb_data;
1473 if (exp->exp_nid_stats)
1474 *data->len += snprintf((data->page + *data->len),
1475 data->count, "%s\n",
1476 obd_uuid2str(&exp->exp_client_uuid));
1479 int lprocfs_exp_rd_uuid(char *page, char **start, off_t off, int count,
1480 int *eof, void *data)
1482 struct nid_stat *stats = (struct nid_stat *)data;
1483 struct exp_uuid_cb_data cb_data;
1484 struct obd_device *obd = stats->nid_obd;
1489 lprocfs_exp_rd_cb_data_init(&cb_data, page, count, eof, &len);
1490 lustre_hash_for_each_key(obd->obd_nid_hash, &stats->nid,
1491 lprocfs_exp_print_uuid, &cb_data);
1492 return (*cb_data.len);
1495 void lprocfs_exp_print_hash(void *obj, void *cb_data)
1497 struct exp_uuid_cb_data *data = cb_data;
1498 struct obd_export *exp = obj;
1501 lh = exp->exp_lock_hash;
1504 *data->len += lustre_hash_debug_header(data->page,
1507 *data->len += lustre_hash_debug_str(lh, data->page + *data->len,
1512 int lprocfs_exp_rd_hash(char *page, char **start, off_t off, int count,
1513 int *eof, void *data)
1515 struct nid_stat *stats = (struct nid_stat *)data;
1516 struct exp_uuid_cb_data cb_data;
1517 struct obd_device *obd = stats->nid_obd;
1522 lprocfs_exp_rd_cb_data_init(&cb_data, page, count, eof, &len);
1524 lustre_hash_for_each_key(obd->obd_nid_hash, &stats->nid,
1525 lprocfs_exp_print_hash, &cb_data);
1526 return (*cb_data.len);
1529 int lprocfs_nid_stats_clear_read(char *page, char **start, off_t off,
1530 int count, int *eof, void *data)
1533 return snprintf(page, count, "%s\n",
1534 "Write into this file to clear all nid stats and "
1535 "stale nid entries");
1537 EXPORT_SYMBOL(lprocfs_nid_stats_clear_read);
1539 void lprocfs_nid_stats_clear_write_cb(void *obj, void *data)
1541 struct nid_stat *stat = obj;
1544 /* object has only hash + iterate_all references.
1545 * add/delete blocked by hash bucket lock */
1546 CDEBUG(D_INFO,"refcnt %d\n", stat->nid_exp_ref_count);
1547 if (stat->nid_exp_ref_count == 2) {
1548 hlist_del_init(&stat->nid_hash);
1549 stat->nid_exp_ref_count--;
1550 spin_lock(&stat->nid_obd->obd_nid_lock);
1551 list_move(&stat->nid_list, data);
1552 spin_unlock(&stat->nid_obd->obd_nid_lock);
1556 /* we has reference to object - only clear data*/
1557 if (stat->nid_stats)
1558 lprocfs_clear_stats(stat->nid_stats);
1560 if (stat->nid_brw_stats) {
1561 for (i = 0; i < BRW_LAST; i++)
1562 lprocfs_oh_clear(&stat->nid_brw_stats->hist[i]);
1568 int lprocfs_nid_stats_clear_write(struct file *file, const char *buffer,
1569 unsigned long count, void *data)
1571 struct obd_device *obd = (struct obd_device *)data;
1572 struct nid_stat *client_stat;
1573 CFS_LIST_HEAD(free_list);
1575 lustre_hash_for_each(obd->obd_nid_stats_hash,
1576 lprocfs_nid_stats_clear_write_cb, &free_list);
1578 while (!list_empty(&free_list)) {
1579 client_stat = list_entry(free_list.next, struct nid_stat,
1581 list_del_init(&client_stat->nid_list);
1582 lprocfs_free_client_stats(client_stat);
1587 EXPORT_SYMBOL(lprocfs_nid_stats_clear_write);
1589 int lprocfs_exp_setup(struct obd_export *exp, lnet_nid_t *nid, int *newnid)
1591 struct nid_stat *new_stat, *old_stat;
1592 struct nid_stat_uuid *new_ns_uuid;
1593 struct obd_device *obd = NULL;
1594 cfs_proc_dir_entry_t *entry;
1600 if (!exp || !exp->exp_obd || !exp->exp_obd->obd_proc_exports_entry ||
1601 !exp->exp_obd->obd_nid_stats_hash)
1604 /* not test against zero because eric say:
1605 * You may only test nid against another nid, or LNET_NID_ANY.
1606 * Anything else is nonsense.*/
1607 if (!nid || *nid == LNET_NID_ANY)
1612 CDEBUG(D_CONFIG, "using hash %p\n", obd->obd_nid_stats_hash);
1614 OBD_ALLOC_PTR(new_stat);
1615 if (new_stat == NULL)
1618 OBD_ALLOC_PTR(new_ns_uuid);
1619 if (new_ns_uuid == NULL) {
1620 OBD_FREE_PTR(new_stat);
1623 CFS_INIT_LIST_HEAD(&new_ns_uuid->ns_uuid_list);
1624 strncpy(new_ns_uuid->ns_uuid.uuid, exp->exp_client_uuid.uuid,
1625 sizeof(struct obd_uuid));
1627 CFS_INIT_LIST_HEAD(&new_stat->nid_uuid_list);
1628 new_stat->nid = *nid;
1629 new_stat->nid_obd = exp->exp_obd;
1630 new_stat->nid_exp_ref_count = 1; /* live in hash after destroy export */
1632 old_stat = lustre_hash_findadd_unique(obd->obd_nid_stats_hash,
1633 nid, &new_stat->nid_hash);
1634 CDEBUG(D_INFO, "Found stats %p for nid %s - ref %d\n",
1635 old_stat, libcfs_nid2str(*nid), new_stat->nid_exp_ref_count);
1637 /* Return -EALREADY here so that we know that the /proc
1638 * entry already has been created */
1639 if (old_stat != new_stat) {
1640 struct nid_stat_uuid *tmp_uuid;
1643 exp->exp_nid_stats = old_stat;
1644 /* We need to decrement the refcount if the uuid was
1645 * already in our list */
1646 spin_lock(&obd->obd_nid_lock);
1647 list_for_each_entry(tmp_uuid, &old_stat->nid_uuid_list,
1649 if (tmp_uuid && obd_uuid_equals(&tmp_uuid->ns_uuid,
1650 &exp->exp_client_uuid)){
1652 --old_stat->nid_exp_ref_count;
1658 list_add(&new_ns_uuid->ns_uuid_list,
1659 &old_stat->nid_uuid_list);
1661 OBD_FREE_PTR(new_ns_uuid);
1663 spin_unlock(&obd->obd_nid_lock);
1665 GOTO(destroy_new, rc = -EALREADY);
1667 /* not found - create */
1668 new_stat->nid_proc = lprocfs_register(libcfs_nid2str(*nid),
1669 obd->obd_proc_exports_entry,
1671 if (new_stat->nid_proc == NULL) {
1672 CERROR("Error making export directory for nid %s\n",
1673 libcfs_nid2str(*nid));
1674 GOTO(destroy_new_ns, rc = -ENOMEM);
1677 /* Add in uuid to our nid_stats list */
1678 spin_lock(&obd->obd_nid_lock);
1679 list_add(&new_ns_uuid->ns_uuid_list, &new_stat->nid_uuid_list);
1680 spin_unlock(&obd->obd_nid_lock);
1682 entry = lprocfs_add_simple(new_stat->nid_proc, "uuid",
1683 lprocfs_exp_rd_uuid, NULL, new_stat, NULL);
1684 if (IS_ERR(entry)) {
1685 CWARN("Error adding the NID stats file\n");
1686 rc = PTR_ERR(entry);
1687 GOTO(destroy_new_ns, rc);
1690 entry = lprocfs_add_simple(new_stat->nid_proc, "hash",
1691 lprocfs_exp_rd_hash, NULL, new_stat, NULL);
1692 if (IS_ERR(entry)) {
1693 CWARN("Error adding the hash file\n");
1694 lprocfs_remove(&new_stat->nid_proc);
1695 rc = PTR_ERR(entry);
1696 GOTO(destroy_new_ns, rc);
1699 exp->exp_nid_stats = new_stat;
1701 /* protect competitive add to list, not need locking on destroy */
1702 spin_lock(&obd->obd_nid_lock);
1703 list_add(&new_stat->nid_list, &obd->obd_nid_stats);
1704 spin_unlock(&obd->obd_nid_lock);
1709 lustre_hash_del(obd->obd_nid_stats_hash, nid, &new_stat->nid_hash);
1710 OBD_FREE_PTR(new_ns_uuid);
1713 OBD_FREE_PTR(new_stat);
1717 int lprocfs_exp_cleanup(struct obd_export *exp)
1719 struct nid_stat *stat = exp->exp_nid_stats;
1720 struct nid_stat_uuid *cursor, *tmp;
1723 if(!stat || !exp->exp_obd)
1726 spin_lock(&exp->exp_obd->obd_nid_lock);
1727 list_for_each_entry_safe(cursor, tmp,
1728 &stat->nid_uuid_list,
1730 if (cursor && obd_uuid_equals(&cursor->ns_uuid,
1731 &exp->exp_client_uuid)) {
1733 list_del(&cursor->ns_uuid_list);
1734 OBD_FREE_PTR(cursor);
1735 --stat->nid_exp_ref_count;
1736 CDEBUG(D_INFO, "Put stat %p - %d\n", stat,
1737 stat->nid_exp_ref_count);
1741 spin_unlock(&exp->exp_obd->obd_nid_lock);
1743 CERROR("obd_export's client uuid %s are not found in its "
1744 "nid_stats list\n", exp->exp_client_uuid.uuid);
1746 exp->exp_nid_stats = NULL;
1747 lprocfs_free_md_stats(exp->exp_obd);
1752 int lprocfs_write_helper(const char *buffer, unsigned long count,
1755 return lprocfs_write_frac_helper(buffer, count, val, 1);
1758 int lprocfs_write_frac_helper(const char *buffer, unsigned long count,
1761 char kernbuf[20], *end, *pbuf;
1763 if (count > (sizeof(kernbuf) - 1))
1766 if (copy_from_user(kernbuf, buffer, count))
1769 kernbuf[count] = '\0';
1776 *val = (int)simple_strtoul(pbuf, &end, 10) * mult;
1780 if (end != NULL && *end == '.') {
1781 int temp_val, pow = 1;
1785 if (strlen(pbuf) > 5)
1786 pbuf[5] = '\0'; /*only allow 5bits fractional*/
1788 temp_val = (int)simple_strtoul(pbuf, &end, 10) * mult;
1791 for (i = 0; i < (end - pbuf); i++)
1794 *val += temp_val / pow;
1800 int lprocfs_read_frac_helper(char *buffer, unsigned long count, long val,
1803 long decimal_val, frac_val;
1809 decimal_val = val / mult;
1810 prtn = snprintf(buffer, count, "%ld", decimal_val);
1811 frac_val = val % mult;
1813 if (prtn < (count - 4) && frac_val > 0) {
1815 int i, temp_mult = 1, frac_bits = 0;
1817 temp_frac = frac_val * 10;
1818 buffer[prtn++] = '.';
1819 while (frac_bits < 2 && (temp_frac / mult) < 1 ) {
1820 /* only reserved 2 bits fraction */
1821 buffer[prtn++] ='0';
1826 * Need to think these cases :
1827 * 1. #echo x.00 > /proc/xxx output result : x
1828 * 2. #echo x.0x > /proc/xxx output result : x.0x
1829 * 3. #echo x.x0 > /proc/xxx output result : x.x
1830 * 4. #echo x.xx > /proc/xxx output result : x.xx
1831 * Only reserved 2 bits fraction.
1833 for (i = 0; i < (5 - prtn); i++)
1836 frac_bits = min((int)count - prtn, 3 - frac_bits);
1837 prtn += snprintf(buffer + prtn, frac_bits, "%ld",
1838 frac_val * temp_mult / mult);
1841 while(buffer[prtn] < '1' || buffer[prtn] > '9') {
1843 if (buffer[prtn] == '.') {
1850 buffer[prtn++] ='\n';
1854 int lprocfs_write_u64_helper(const char *buffer, unsigned long count,__u64 *val)
1856 return lprocfs_write_frac_u64_helper(buffer, count, val, 1);
1859 int lprocfs_write_frac_u64_helper(const char *buffer, unsigned long count,
1860 __u64 *val, int mult)
1862 char kernbuf[22], *end, *pbuf;
1863 __u64 whole, frac = 0, units;
1864 unsigned frac_d = 1;
1866 if (count > (sizeof(kernbuf) - 1))
1869 if (copy_from_user(kernbuf, buffer, count))
1872 kernbuf[count] = '\0';
1879 whole = simple_strtoull(pbuf, &end, 10);
1883 if (end != NULL && *end == '.') {
1887 /* need to limit frac_d to a __u32 */
1888 if (strlen(pbuf) > 10)
1891 frac = simple_strtoull(pbuf, &end, 10);
1892 /* count decimal places */
1893 for (i = 0; i < (end - pbuf); i++)
1910 /* Specified units override the multiplier */
1912 mult = mult < 0 ? -units : units;
1915 do_div(frac, frac_d);
1916 *val = whole * mult + frac;
1920 int lprocfs_seq_create(cfs_proc_dir_entry_t *parent, char *name, mode_t mode,
1921 struct file_operations *seq_fops, void *data)
1923 struct proc_dir_entry *entry;
1926 entry = create_proc_entry(name, mode, parent);
1929 entry->proc_fops = seq_fops;
1934 EXPORT_SYMBOL(lprocfs_seq_create);
1936 __inline__ int lprocfs_obd_seq_create(struct obd_device *dev, char *name,
1938 struct file_operations *seq_fops,
1941 return (lprocfs_seq_create(dev->obd_proc_entry, name,
1942 mode, seq_fops, data));
1944 EXPORT_SYMBOL(lprocfs_obd_seq_create);
1946 void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value)
1948 if (value >= OBD_HIST_MAX)
1949 value = OBD_HIST_MAX - 1;
1951 spin_lock(&oh->oh_lock);
1952 oh->oh_buckets[value]++;
1953 spin_unlock(&oh->oh_lock);
1955 EXPORT_SYMBOL(lprocfs_oh_tally);
1957 void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value)
1961 for (val = 0; ((1 << val) < value) && (val <= OBD_HIST_MAX); val++)
1964 lprocfs_oh_tally(oh, val);
1966 EXPORT_SYMBOL(lprocfs_oh_tally_log2);
1968 unsigned long lprocfs_oh_sum(struct obd_histogram *oh)
1970 unsigned long ret = 0;
1973 for (i = 0; i < OBD_HIST_MAX; i++)
1974 ret += oh->oh_buckets[i];
1977 EXPORT_SYMBOL(lprocfs_oh_sum);
1979 void lprocfs_oh_clear(struct obd_histogram *oh)
1981 spin_lock(&oh->oh_lock);
1982 memset(oh->oh_buckets, 0, sizeof(oh->oh_buckets));
1983 spin_unlock(&oh->oh_lock);
1985 EXPORT_SYMBOL(lprocfs_oh_clear);
1987 int lprocfs_obd_rd_hash(char *page, char **start, off_t off,
1988 int count, int *eof, void *data)
1990 struct obd_device *obd = data;
1996 c += lustre_hash_debug_header(page, count);
1997 c += lustre_hash_debug_str(obd->obd_uuid_hash, page + c, count - c);
1998 c += lustre_hash_debug_str(obd->obd_nid_hash, page + c, count - c);
1999 c += lustre_hash_debug_str(obd->obd_nid_stats_hash, page+c, count-c);
2003 EXPORT_SYMBOL(lprocfs_obd_rd_hash);
2005 int lprocfs_obd_rd_recovery_status(char *page, char **start, off_t off,
2006 int count, int *eof, void *data)
2008 struct obd_device *obd = data;
2011 LASSERT(obd != NULL);
2012 LASSERT(count >= 0);
2014 /* Set start of user data returned to
2015 page + off since the user may have
2016 requested to read much smaller than
2017 what we need to read */
2018 *start = page + off;
2020 /* We know we are allocated a page here.
2021 Also we know that this function will
2022 not need to write more than a page
2023 so we can truncate at CFS_PAGE_SIZE. */
2024 size = min(count + (int)off + 1, (int)CFS_PAGE_SIZE);
2026 /* Initialize the page */
2027 memset(page, 0, size);
2029 if (lprocfs_obd_snprintf(&page, size, &len, "status: ") <= 0)
2031 if (obd->obd_max_recoverable_clients == 0) {
2032 if (lprocfs_obd_snprintf(&page, size, &len, "INACTIVE\n") <= 0)
2038 /* sampled unlocked, but really... */
2039 if (obd->obd_recovering == 0) {
2040 if (lprocfs_obd_snprintf(&page, size, &len, "COMPLETE\n") <= 0)
2042 if (lprocfs_obd_snprintf(&page, size, &len,
2043 "recovery_start: %lu\n",
2044 obd->obd_recovery_start) <= 0)
2046 if (lprocfs_obd_snprintf(&page, size, &len,
2047 "recovery_duration: %lu\n",
2048 obd->obd_recovery_end -
2049 obd->obd_recovery_start) <= 0)
2051 /* Number of clients that have completed recovery */
2052 if (lprocfs_obd_snprintf(&page, size, &len,
2053 "completed_clients: %d/%d\n",
2054 obd->obd_max_recoverable_clients -
2055 obd->obd_recoverable_clients,
2056 obd->obd_max_recoverable_clients) <= 0)
2058 if (lprocfs_obd_snprintf(&page, size, &len,
2059 "replayed_requests: %d\n",
2060 obd->obd_replayed_requests) <= 0)
2062 if (lprocfs_obd_snprintf(&page, size, &len,
2063 "last_transno: "LPD64"\n",
2064 obd->obd_next_recovery_transno - 1)<=0)
2069 if (lprocfs_obd_snprintf(&page, size, &len, "RECOVERING\n") <= 0)
2071 if (lprocfs_obd_snprintf(&page, size, &len, "recovery_start: %lu\n",
2072 obd->obd_recovery_start) <= 0)
2074 if (lprocfs_obd_snprintf(&page, size, &len, "time_remaining: %lu\n",
2075 cfs_time_current_sec() >= obd->obd_recovery_end ? 0 :
2076 obd->obd_recovery_end - cfs_time_current_sec()) <= 0)
2078 if (lprocfs_obd_snprintf(&page, size, &len,"connected_clients: %d/%d\n",
2079 obd->obd_connected_clients,
2080 obd->obd_max_recoverable_clients) <= 0)
2082 /* Number of clients that have completed recovery */
2083 if (lprocfs_obd_snprintf(&page, size, &len,"completed_clients: %d/%d\n",
2084 obd->obd_max_recoverable_clients -
2085 obd->obd_recoverable_clients,
2086 obd->obd_max_recoverable_clients) <= 0)
2088 if (lprocfs_obd_snprintf(&page, size, &len,"replayed_requests: %d/??\n",
2089 obd->obd_replayed_requests) <= 0)
2091 if (lprocfs_obd_snprintf(&page, size, &len, "queued_requests: %d\n",
2092 obd->obd_requests_queued_for_recovery) <= 0)
2095 if (lprocfs_obd_snprintf(&page, size, &len, "next_transno: "LPD64"\n",
2096 obd->obd_next_recovery_transno) <= 0)
2102 return min(count, len - (int)off);
2104 EXPORT_SYMBOL(lprocfs_obd_rd_recovery_status);
2106 int lprocfs_obd_rd_recovery_maxtime(char *page, char **start, off_t off,
2107 int count, int *eof, void *data)
2109 struct obd_device *obd = data;
2110 LASSERT(obd != NULL);
2112 return snprintf(page, count, "%lu\n", obd->obd_recovery_max_time);
2114 EXPORT_SYMBOL(lprocfs_obd_rd_recovery_maxtime);
2116 int lprocfs_obd_wr_recovery_maxtime(struct file *file, const char *buffer,
2117 unsigned long count, void *data)
2119 struct obd_device *obd = data;
2121 LASSERT(obd != NULL);
2123 rc = lprocfs_write_helper(buffer, count, &val);
2127 obd->obd_recovery_max_time = val;
2130 EXPORT_SYMBOL(lprocfs_obd_wr_recovery_maxtime);
2133 /**** Changelogs *****/
2134 #define D_CHANGELOG 0
2136 DECLARE_CHANGELOG_NAMES;
2138 /* How many records per seq_show. Too small, we spawn llog_process threads
2139 too often; too large, we run out of buffer space */
2140 #define CHANGELOG_CHUNK_SIZE 100
2142 static int changelog_show_cb(struct llog_handle *llh, struct llog_rec_hdr *hdr,
2145 struct seq_file *seq = (struct seq_file *)data;
2146 struct changelog_seq_iter *csi = seq->private;
2147 struct llog_changelog_rec *rec = (struct llog_changelog_rec *)hdr;
2151 if ((rec->cr_hdr.lrh_type != CHANGELOG_REC) ||
2152 (rec->cr_type >= CL_LAST)) {
2153 CERROR("Not a changelog rec %d/%d\n", rec->cr_hdr.lrh_type,
2158 CDEBUG(D_CHANGELOG, "rec="LPU64" start="LPU64" cat=%d:%d start=%d:%d\n",
2159 rec->cr_index, csi->csi_startrec,
2160 llh->lgh_hdr->llh_cat_idx, llh->lgh_cur_idx,
2161 csi->csi_startcat, csi->csi_startidx);
2163 if (rec->cr_index < csi->csi_startrec)
2164 /* Skip entries earlier than what we are interested in */
2166 if (rec->cr_index == csi->csi_startrec) {
2167 /* Remember where we started, since seq_read will re-read
2168 * the data when it reallocs space. Sigh, if only there was
2169 * a way to tell seq_file how big the buf should be in the
2172 csi->csi_startcat = llh->lgh_hdr->llh_cat_idx;
2173 csi->csi_startidx = rec->cr_hdr.lrh_index - 1;
2175 if (csi->csi_wrote > CHANGELOG_CHUNK_SIZE) {
2176 /* Stop at some point with a reasonable seq_file buffer size.
2177 * Start from here the next time.
2179 csi->csi_endrec = rec->cr_index - 1;
2180 csi->csi_startcat = llh->lgh_hdr->llh_cat_idx;
2181 csi->csi_startidx = rec->cr_hdr.lrh_index - 1;
2183 RETURN(LLOG_PROC_BREAK);
2186 rc = seq_printf(seq, LPU64" %02d%-5s "LPU64" 0x%x t="DFID,
2187 rec->cr_index, rec->cr_type,
2188 changelog_str[rec->cr_type], rec->cr_time,
2189 rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
2191 if (rec->cr_namelen)
2192 /* namespace rec includes parent and filename */
2193 rc += seq_printf(seq, " p="DFID" %.*s\n", PFID(&rec->cr_pfid),
2194 rec->cr_namelen, rec->cr_name);
2196 rc += seq_puts(seq, "\n");
2199 /* Ran out of room in the seq buffer. seq_read will dump
2200 * the whole buffer and re-seq_start with a larger one;
2201 * no point in continuing the llog_process */
2202 CDEBUG(D_CHANGELOG, "rec="LPU64" overflow "LPU64"<-"LPU64"\n",
2203 rec->cr_index, csi->csi_startrec, csi->csi_endrec);
2204 csi->csi_endrec = csi->csi_startrec - 1;
2206 RETURN(LLOG_PROC_BREAK);
2210 csi->csi_endrec = rec->cr_index;
2215 static int changelog_seq_show(struct seq_file *seq, void *v)
2217 struct changelog_seq_iter *csi = seq->private;
2221 if (csi->csi_fill) {
2222 /* seq_read wants more data to fill his buffer. But we already
2223 filled the buf as much as we cared to; force seq_read to
2224 accept that by padding with 0's */
2225 while (seq_putc(seq, 0) == 0);
2229 /* Since we have to restart the llog_cat_process for each chunk of the
2230 seq_ functions, start from where we left off. */
2231 rc = llog_cat_process(csi->csi_llh, changelog_show_cb, seq,
2232 csi->csi_startcat, csi->csi_startidx);
2234 CDEBUG(D_CHANGELOG,"seq_show "LPU64"-"LPU64" cat=%d:%d wrote=%d rc=%d\n",
2235 csi->csi_startrec, csi->csi_endrec, csi->csi_startcat,
2236 csi->csi_startidx, csi->csi_wrote, rc);
2240 if (rc == LLOG_PROC_BREAK)
2241 /* more records left, but seq_show must return 0 */
2246 static void *changelog_seq_start(struct seq_file *seq, loff_t *pos)
2248 struct changelog_seq_iter *csi = seq->private;
2251 CDEBUG(D_CHANGELOG, "start "LPU64"-"LPU64" pos="LPU64"\n",
2252 csi->csi_startrec, csi->csi_endrec, *pos);
2257 /* no more records, seq_read should return 0 if buffer
2261 if (*pos > csi->csi_pos) {
2262 /* The seq_read implementation sucks. It may call start
2263 multiple times, using pos to indicate advances, if any,
2264 by arbitrarily increasing it by 1. So ignore the actual
2265 value of pos, and just register any increase as
2266 "seq_read wants the next values". */
2267 csi->csi_startrec = csi->csi_endrec + 1;
2268 csi->csi_pos = *pos;
2270 /* else use old startrec/startidx */
2275 static void changelog_seq_stop(struct seq_file *seq, void *v)
2277 struct changelog_seq_iter *csi = seq->private;
2279 CDEBUG(D_CHANGELOG, "stop "LPU64"-"LPU64"\n",
2280 csi->csi_startrec, csi->csi_endrec);
2283 static void *changelog_seq_next(struct seq_file *seq, void *v, loff_t *pos)
2285 struct changelog_seq_iter *csi = seq->private;
2287 CDEBUG(D_CHANGELOG, "next "LPU64"-"LPU64" pos="LPU64"\n",
2288 csi->csi_startrec, csi->csi_endrec, *pos);
2295 static struct seq_operations changelog_sops = {
2296 .start = changelog_seq_start,
2297 .stop = changelog_seq_stop,
2298 .next = changelog_seq_next,
2299 .show = changelog_seq_show,
2302 int changelog_seq_open(struct inode *inode, struct file *file,
2303 struct changelog_seq_iter **csih)
2305 struct changelog_seq_iter *csi;
2306 struct proc_dir_entry *dp = PDE(inode);
2307 struct seq_file *seq;
2310 LPROCFS_ENTRY_AND_CHECK(dp);
2312 rc = seq_open(file, &changelog_sops);
2320 lprocfs_seq_release(inode, file);
2324 csi->csi_dev = dp->data;
2325 seq = file->private_data;
2331 EXPORT_SYMBOL(changelog_seq_open);
2333 int changelog_seq_release(struct inode *inode, struct file *file)
2335 struct seq_file *seq = file->private_data;
2336 struct changelog_seq_iter *csi = seq->private;
2341 return lprocfs_seq_release(inode, file);
2343 EXPORT_SYMBOL(changelog_seq_release);
2345 #ifndef SEEK_CUR /* SLES10 needs this */
2350 loff_t changelog_seq_lseek(struct file *file, loff_t offset, int origin)
2352 struct seq_file *seq = (struct seq_file *)file->private_data;
2353 struct changelog_seq_iter *csi = seq->private;
2355 CDEBUG(D_CHANGELOG,"seek "LPU64"-"LPU64" off="LPU64":%d fpos="LPU64"\n",
2356 csi->csi_startrec, csi->csi_endrec, offset, origin, file->f_pos);
2362 offset += csi->csi_endrec;
2365 /* we don't know the last rec */
2376 csi->csi_startrec = offset;
2377 csi->csi_endrec = offset ? offset - 1 : 0;
2379 /* drop whatever is left in sucky seq_read's buffer */
2384 file->f_pos = csi->csi_startrec;
2385 return csi->csi_startrec;
2387 EXPORT_SYMBOL(changelog_seq_lseek);
2389 EXPORT_SYMBOL(lprocfs_register);
2390 EXPORT_SYMBOL(lprocfs_srch);
2391 EXPORT_SYMBOL(lprocfs_remove);
2392 EXPORT_SYMBOL(lprocfs_remove_proc_entry);
2393 EXPORT_SYMBOL(lprocfs_add_vars);
2394 EXPORT_SYMBOL(lprocfs_obd_setup);
2395 EXPORT_SYMBOL(lprocfs_obd_cleanup);
2396 EXPORT_SYMBOL(lprocfs_add_simple);
2397 EXPORT_SYMBOL(lprocfs_add_symlink);
2398 EXPORT_SYMBOL(lprocfs_free_per_client_stats);
2399 EXPORT_SYMBOL(lprocfs_alloc_stats);
2400 EXPORT_SYMBOL(lprocfs_free_stats);
2401 EXPORT_SYMBOL(lprocfs_clear_stats);
2402 EXPORT_SYMBOL(lprocfs_register_stats);
2403 EXPORT_SYMBOL(lprocfs_init_ops_stats);
2404 EXPORT_SYMBOL(lprocfs_init_ldlm_stats);
2405 EXPORT_SYMBOL(lprocfs_alloc_obd_stats);
2406 EXPORT_SYMBOL(lprocfs_alloc_md_stats);
2407 EXPORT_SYMBOL(lprocfs_free_obd_stats);
2408 EXPORT_SYMBOL(lprocfs_exp_setup);
2409 EXPORT_SYMBOL(lprocfs_exp_cleanup);
2411 EXPORT_SYMBOL(lprocfs_rd_u64);
2412 EXPORT_SYMBOL(lprocfs_rd_atomic);
2413 EXPORT_SYMBOL(lprocfs_wr_atomic);
2414 EXPORT_SYMBOL(lprocfs_rd_uint);
2415 EXPORT_SYMBOL(lprocfs_wr_uint);
2416 EXPORT_SYMBOL(lprocfs_rd_uuid);
2417 EXPORT_SYMBOL(lprocfs_rd_name);
2418 EXPORT_SYMBOL(lprocfs_rd_fstype);
2419 EXPORT_SYMBOL(lprocfs_rd_server_uuid);
2420 EXPORT_SYMBOL(lprocfs_rd_conn_uuid);
2421 EXPORT_SYMBOL(lprocfs_rd_num_exports);
2422 EXPORT_SYMBOL(lprocfs_rd_numrefs);
2423 EXPORT_SYMBOL(lprocfs_at_hist_helper);
2424 EXPORT_SYMBOL(lprocfs_rd_import);
2425 EXPORT_SYMBOL(lprocfs_rd_timeouts);
2426 EXPORT_SYMBOL(lprocfs_rd_blksize);
2427 EXPORT_SYMBOL(lprocfs_rd_kbytestotal);
2428 EXPORT_SYMBOL(lprocfs_rd_kbytesfree);
2429 EXPORT_SYMBOL(lprocfs_rd_kbytesavail);
2430 EXPORT_SYMBOL(lprocfs_rd_filestotal);
2431 EXPORT_SYMBOL(lprocfs_rd_filesfree);
2433 EXPORT_SYMBOL(lprocfs_write_helper);
2434 EXPORT_SYMBOL(lprocfs_write_frac_helper);
2435 EXPORT_SYMBOL(lprocfs_read_frac_helper);
2436 EXPORT_SYMBOL(lprocfs_write_u64_helper);
2437 EXPORT_SYMBOL(lprocfs_write_frac_u64_helper);