4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2012, Intel Corporation.
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>
41 #define DEBUG_SUBSYSTEM S_CLASS
44 #include <obd_class.h>
45 #include <lprocfs_status.h>
46 #include <lustre/lustre_idl.h>
47 #include <linux/seq_file.h>
49 static const char * const obd_connect_names
[] = {
63 "join_file(obsolete)",
67 "remote_client_by_force",
79 "alt_checksum_algorithm",
107 int obd_connect_flags2str(char *page
, int count
, __u64 flags
, char *sep
)
112 for (i
= 0; obd_connect_names
[i
] != NULL
; i
++, mask
<<= 1) {
114 ret
+= snprintf(page
+ ret
, count
- ret
, "%s%s",
115 ret
? sep
: "", obd_connect_names
[i
]);
117 if (flags
& ~(mask
- 1))
118 ret
+= snprintf(page
+ ret
, count
- ret
,
119 "%sunknown flags "LPX64
,
120 ret
? sep
: "", flags
& ~(mask
- 1));
123 EXPORT_SYMBOL(obd_connect_flags2str
);
125 int lprocfs_read_frac_helper(char *buffer
, unsigned long count
, long val
,
128 long decimal_val
, frac_val
;
134 decimal_val
= val
/ mult
;
135 prtn
= snprintf(buffer
, count
, "%ld", decimal_val
);
136 frac_val
= val
% mult
;
138 if (prtn
< (count
- 4) && frac_val
> 0) {
140 int i
, temp_mult
= 1, frac_bits
= 0;
142 temp_frac
= frac_val
* 10;
143 buffer
[prtn
++] = '.';
144 while (frac_bits
< 2 && (temp_frac
/ mult
) < 1) {
145 /* only reserved 2 bits fraction */
146 buffer
[prtn
++] = '0';
151 * Need to think these cases :
152 * 1. #echo x.00 > /proc/xxx output result : x
153 * 2. #echo x.0x > /proc/xxx output result : x.0x
154 * 3. #echo x.x0 > /proc/xxx output result : x.x
155 * 4. #echo x.xx > /proc/xxx output result : x.xx
156 * Only reserved 2 bits fraction.
158 for (i
= 0; i
< (5 - prtn
); i
++)
161 frac_bits
= min((int)count
- prtn
, 3 - frac_bits
);
162 prtn
+= snprintf(buffer
+ prtn
, frac_bits
, "%ld",
163 frac_val
* temp_mult
/ mult
);
166 while (buffer
[prtn
] < '1' || buffer
[prtn
] > '9') {
168 if (buffer
[prtn
] == '.') {
175 buffer
[prtn
++] = '\n';
178 EXPORT_SYMBOL(lprocfs_read_frac_helper
);
180 int lprocfs_write_frac_helper(const char *buffer
, unsigned long count
,
183 char kernbuf
[20], *end
, *pbuf
;
185 if (count
> (sizeof(kernbuf
) - 1))
188 if (copy_from_user(kernbuf
, buffer
, count
))
191 kernbuf
[count
] = '\0';
198 *val
= (int)simple_strtoul(pbuf
, &end
, 10) * mult
;
202 if (end
!= NULL
&& *end
== '.') {
203 int temp_val
, pow
= 1;
207 if (strlen(pbuf
) > 5)
208 pbuf
[5] = '\0'; /*only allow 5bits fractional*/
210 temp_val
= (int)simple_strtoul(pbuf
, &end
, 10) * mult
;
213 for (i
= 0; i
< (end
- pbuf
); i
++)
216 *val
+= temp_val
/ pow
;
221 EXPORT_SYMBOL(lprocfs_write_frac_helper
);
225 static int lprocfs_no_percpu_stats
= 0;
226 module_param(lprocfs_no_percpu_stats
, int, 0644);
227 MODULE_PARM_DESC(lprocfs_no_percpu_stats
, "Do not alloc percpu data for lprocfs stats");
229 #define MAX_STRING_SIZE 128
231 int lprocfs_single_release(struct inode
*inode
, struct file
*file
)
233 return single_release(inode
, file
);
235 EXPORT_SYMBOL(lprocfs_single_release
);
237 int lprocfs_seq_release(struct inode
*inode
, struct file
*file
)
239 return seq_release(inode
, file
);
241 EXPORT_SYMBOL(lprocfs_seq_release
);
243 /* lprocfs API calls */
245 struct proc_dir_entry
*lprocfs_add_simple(struct proc_dir_entry
*root
,
246 char *name
, void *data
,
247 struct file_operations
*fops
)
249 struct proc_dir_entry
*proc
;
252 if (root
== NULL
|| name
== NULL
|| fops
== NULL
)
253 return ERR_PTR(-EINVAL
);
259 proc
= proc_create_data(name
, mode
, root
, fops
, data
);
261 CERROR("LprocFS: No memory to create /proc entry %s", name
);
262 return ERR_PTR(-ENOMEM
);
266 EXPORT_SYMBOL(lprocfs_add_simple
);
268 struct proc_dir_entry
*lprocfs_add_symlink(const char *name
,
269 struct proc_dir_entry
*parent
, const char *format
, ...)
271 struct proc_dir_entry
*entry
;
275 if (parent
== NULL
|| format
== NULL
)
278 OBD_ALLOC_WAIT(dest
, MAX_STRING_SIZE
+ 1);
282 va_start(ap
, format
);
283 vsnprintf(dest
, MAX_STRING_SIZE
, format
, ap
);
286 entry
= proc_symlink(name
, parent
, dest
);
288 CERROR("LprocFS: Could not create symbolic link from %s to %s",
291 OBD_FREE(dest
, MAX_STRING_SIZE
+ 1);
294 EXPORT_SYMBOL(lprocfs_add_symlink
);
296 static struct file_operations lprocfs_generic_fops
= { };
301 * \param root [in] The parent proc entry on which new entry will be added.
302 * \param list [in] Array of proc entries to be added.
303 * \param data [in] The argument to be passed when entries read/write routines
304 * are called through /proc file.
306 * \retval 0 on success
309 int lprocfs_add_vars(struct proc_dir_entry
*root
, struct lprocfs_vars
*list
,
312 if (root
== NULL
|| list
== NULL
)
315 while (list
->name
!= NULL
) {
316 struct proc_dir_entry
*proc
;
319 if (list
->proc_mode
!= 0000) {
320 mode
= list
->proc_mode
;
321 } else if (list
->fops
) {
322 if (list
->fops
->read
)
324 if (list
->fops
->write
)
327 proc
= proc_create_data(list
->name
, mode
, root
,
328 list
->fops
?: &lprocfs_generic_fops
,
336 EXPORT_SYMBOL(lprocfs_add_vars
);
338 void lprocfs_remove(struct proc_dir_entry
**rooth
)
343 EXPORT_SYMBOL(lprocfs_remove
);
345 void lprocfs_remove_proc_entry(const char *name
, struct proc_dir_entry
*parent
)
347 LASSERT(parent
!= NULL
);
348 remove_proc_entry(name
, parent
);
350 EXPORT_SYMBOL(lprocfs_remove_proc_entry
);
352 struct proc_dir_entry
*lprocfs_register(const char *name
,
353 struct proc_dir_entry
*parent
,
354 struct lprocfs_vars
*list
, void *data
)
356 struct proc_dir_entry
*entry
;
358 entry
= proc_mkdir(name
, parent
);
360 GOTO(out
, entry
= ERR_PTR(-ENOMEM
));
363 int rc
= lprocfs_add_vars(entry
, list
, data
);
365 lprocfs_remove(&entry
);
372 EXPORT_SYMBOL(lprocfs_register
);
374 /* Generic callbacks */
375 int lprocfs_rd_uint(struct seq_file
*m
, void *data
)
377 return seq_printf(m
, "%u\n", *(unsigned int *)data
);
379 EXPORT_SYMBOL(lprocfs_rd_uint
);
381 int lprocfs_wr_uint(struct file
*file
, const char __user
*buffer
,
382 unsigned long count
, void *data
)
385 char dummy
[MAX_STRING_SIZE
+ 1], *end
;
388 dummy
[MAX_STRING_SIZE
] = '\0';
389 if (copy_from_user(dummy
, buffer
, MAX_STRING_SIZE
))
392 tmp
= simple_strtoul(dummy
, &end
, 0);
396 *p
= (unsigned int)tmp
;
399 EXPORT_SYMBOL(lprocfs_wr_uint
);
401 int lprocfs_rd_u64(struct seq_file
*m
, void *data
)
403 return seq_printf(m
, LPU64
"\n", *(__u64
*)data
);
405 EXPORT_SYMBOL(lprocfs_rd_u64
);
407 int lprocfs_rd_atomic(struct seq_file
*m
, void *data
)
409 atomic_t
*atom
= data
;
410 LASSERT(atom
!= NULL
);
411 return seq_printf(m
, "%d\n", atomic_read(atom
));
413 EXPORT_SYMBOL(lprocfs_rd_atomic
);
415 int lprocfs_wr_atomic(struct file
*file
, const char __user
*buffer
,
416 unsigned long count
, void *data
)
418 atomic_t
*atm
= data
;
422 rc
= lprocfs_write_helper(buffer
, count
, &val
);
429 atomic_set(atm
, val
);
432 EXPORT_SYMBOL(lprocfs_wr_atomic
);
434 int lprocfs_rd_uuid(struct seq_file
*m
, void *data
)
436 struct obd_device
*obd
= data
;
438 LASSERT(obd
!= NULL
);
439 return seq_printf(m
, "%s\n", obd
->obd_uuid
.uuid
);
441 EXPORT_SYMBOL(lprocfs_rd_uuid
);
443 int lprocfs_rd_name(struct seq_file
*m
, void *data
)
445 struct obd_device
*dev
= data
;
447 LASSERT(dev
!= NULL
);
448 return seq_printf(m
, "%s\n", dev
->obd_name
);
450 EXPORT_SYMBOL(lprocfs_rd_name
);
452 int lprocfs_rd_blksize(struct seq_file
*m
, void *data
)
454 struct obd_device
*obd
= data
;
455 struct obd_statfs osfs
;
456 int rc
= obd_statfs(NULL
, obd
->obd_self_export
, &osfs
,
457 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS
),
460 rc
= seq_printf(m
, "%u\n", osfs
.os_bsize
);
463 EXPORT_SYMBOL(lprocfs_rd_blksize
);
465 int lprocfs_rd_kbytestotal(struct seq_file
*m
, void *data
)
467 struct obd_device
*obd
= data
;
468 struct obd_statfs osfs
;
469 int rc
= obd_statfs(NULL
, obd
->obd_self_export
, &osfs
,
470 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS
),
473 __u32 blk_size
= osfs
.os_bsize
>> 10;
474 __u64 result
= osfs
.os_blocks
;
476 while (blk_size
>>= 1)
479 rc
= seq_printf(m
, LPU64
"\n", result
);
483 EXPORT_SYMBOL(lprocfs_rd_kbytestotal
);
485 int lprocfs_rd_kbytesfree(struct seq_file
*m
, void *data
)
487 struct obd_device
*obd
= data
;
488 struct obd_statfs osfs
;
489 int rc
= obd_statfs(NULL
, obd
->obd_self_export
, &osfs
,
490 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS
),
493 __u32 blk_size
= osfs
.os_bsize
>> 10;
494 __u64 result
= osfs
.os_bfree
;
496 while (blk_size
>>= 1)
499 rc
= seq_printf(m
, LPU64
"\n", result
);
503 EXPORT_SYMBOL(lprocfs_rd_kbytesfree
);
505 int lprocfs_rd_kbytesavail(struct seq_file
*m
, void *data
)
507 struct obd_device
*obd
= data
;
508 struct obd_statfs osfs
;
509 int rc
= obd_statfs(NULL
, obd
->obd_self_export
, &osfs
,
510 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS
),
513 __u32 blk_size
= osfs
.os_bsize
>> 10;
514 __u64 result
= osfs
.os_bavail
;
516 while (blk_size
>>= 1)
519 rc
= seq_printf(m
, LPU64
"\n", result
);
523 EXPORT_SYMBOL(lprocfs_rd_kbytesavail
);
525 int lprocfs_rd_filestotal(struct seq_file
*m
, void *data
)
527 struct obd_device
*obd
= data
;
528 struct obd_statfs osfs
;
529 int rc
= obd_statfs(NULL
, obd
->obd_self_export
, &osfs
,
530 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS
),
533 rc
= seq_printf(m
, LPU64
"\n", osfs
.os_files
);
537 EXPORT_SYMBOL(lprocfs_rd_filestotal
);
539 int lprocfs_rd_filesfree(struct seq_file
*m
, void *data
)
541 struct obd_device
*obd
= data
;
542 struct obd_statfs osfs
;
543 int rc
= obd_statfs(NULL
, obd
->obd_self_export
, &osfs
,
544 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS
),
547 rc
= seq_printf(m
, LPU64
"\n", osfs
.os_ffree
);
550 EXPORT_SYMBOL(lprocfs_rd_filesfree
);
552 int lprocfs_rd_server_uuid(struct seq_file
*m
, void *data
)
554 struct obd_device
*obd
= data
;
555 struct obd_import
*imp
;
556 char *imp_state_name
= NULL
;
559 LASSERT(obd
!= NULL
);
560 LPROCFS_CLIMP_CHECK(obd
);
561 imp
= obd
->u
.cli
.cl_import
;
562 imp_state_name
= ptlrpc_import_state_name(imp
->imp_state
);
563 rc
= seq_printf(m
, "%s\t%s%s\n", obd2cli_tgt(obd
), imp_state_name
,
564 imp
->imp_deactive
? "\tDEACTIVATED" : "");
566 LPROCFS_CLIMP_EXIT(obd
);
569 EXPORT_SYMBOL(lprocfs_rd_server_uuid
);
571 int lprocfs_rd_conn_uuid(struct seq_file
*m
, void *data
)
573 struct obd_device
*obd
= data
;
574 struct ptlrpc_connection
*conn
;
577 LASSERT(obd
!= NULL
);
579 LPROCFS_CLIMP_CHECK(obd
);
580 conn
= obd
->u
.cli
.cl_import
->imp_connection
;
581 if (conn
&& obd
->u
.cli
.cl_import
)
582 rc
= seq_printf(m
, "%s\n", conn
->c_remote_uuid
.uuid
);
584 rc
= seq_printf(m
, "%s\n", "<none>");
586 LPROCFS_CLIMP_EXIT(obd
);
589 EXPORT_SYMBOL(lprocfs_rd_conn_uuid
);
591 /** add up per-cpu counters */
592 void lprocfs_stats_collect(struct lprocfs_stats
*stats
, int idx
,
593 struct lprocfs_counter
*cnt
)
595 unsigned int num_entry
;
596 struct lprocfs_counter
*percpu_cntr
;
598 unsigned long flags
= 0;
600 memset(cnt
, 0, sizeof(*cnt
));
603 /* set count to 1 to avoid divide-by-zero errs in callers */
608 cnt
->lc_min
= LC_MIN_INIT
;
610 num_entry
= lprocfs_stats_lock(stats
, LPROCFS_GET_NUM_CPU
, &flags
);
612 for (i
= 0; i
< num_entry
; i
++) {
613 if (stats
->ls_percpu
[i
] == NULL
)
615 percpu_cntr
= lprocfs_stats_counter_get(stats
, i
, idx
);
617 cnt
->lc_count
+= percpu_cntr
->lc_count
;
618 cnt
->lc_sum
+= percpu_cntr
->lc_sum
;
619 if (percpu_cntr
->lc_min
< cnt
->lc_min
)
620 cnt
->lc_min
= percpu_cntr
->lc_min
;
621 if (percpu_cntr
->lc_max
> cnt
->lc_max
)
622 cnt
->lc_max
= percpu_cntr
->lc_max
;
623 cnt
->lc_sumsquare
+= percpu_cntr
->lc_sumsquare
;
626 lprocfs_stats_unlock(stats
, LPROCFS_GET_NUM_CPU
, &flags
);
628 EXPORT_SYMBOL(lprocfs_stats_collect
);
631 * Append a space separated list of current set flags to str.
633 #define flag2str(flag, first) \
635 if (imp->imp_##flag) \
636 seq_printf(m, "%s" #flag, first ? "" : ", "); \
638 static int obd_import_flags2str(struct obd_import
*imp
, struct seq_file
*m
)
642 if (imp
->imp_obd
->obd_no_recov
) {
643 seq_printf(m
, "no_recov");
647 flag2str(invalid
, first
);
649 flag2str(deactive
, first
);
650 flag2str(replayable
, first
);
651 flag2str(pingable
, first
);
656 static void obd_connect_seq_flags2str(struct seq_file
*m
, __u64 flags
, char *sep
)
662 for (i
= 0; obd_connect_names
[i
] != NULL
; i
++, mask
<<= 1) {
664 seq_printf(m
, "%s%s",
665 first
? sep
: "", obd_connect_names
[i
]);
669 if (flags
& ~(mask
- 1))
670 seq_printf(m
, "%sunknown flags "LPX64
,
671 first
? sep
: "", flags
& ~(mask
- 1));
674 int lprocfs_rd_import(struct seq_file
*m
, void *data
)
676 struct lprocfs_counter ret
;
677 struct lprocfs_counter_header
*header
;
678 struct obd_device
*obd
= (struct obd_device
*)data
;
679 struct obd_import
*imp
;
680 struct obd_import_conn
*conn
;
685 LASSERT(obd
!= NULL
);
686 LPROCFS_CLIMP_CHECK(obd
);
687 imp
= obd
->u
.cli
.cl_import
;
698 ptlrpc_import_state_name(imp
->imp_state
),
699 imp
->imp_connect_data
.ocd_instance
);
700 obd_connect_seq_flags2str(m
, imp
->imp_connect_data
.ocd_connect_flags
, ", ");
704 obd_import_flags2str(imp
, m
);
709 " failover_nids: [");
710 spin_lock(&imp
->imp_lock
);
712 list_for_each_entry(conn
, &imp
->imp_conn_list
, oic_item
) {
713 seq_printf(m
, "%s%s", j
? ", " : "",
714 libcfs_nid2str(conn
->oic_conn
->c_peer
.nid
));
719 " current_connection: %s\n"
720 " connection_attempts: %u\n"
722 " in-progress_invalidations: %u\n",
723 imp
->imp_connection
== NULL
? "<none>" :
724 libcfs_nid2str(imp
->imp_connection
->c_peer
.nid
),
727 atomic_read(&imp
->imp_inval_count
));
728 spin_unlock(&imp
->imp_lock
);
730 if (obd
->obd_svc_stats
== NULL
)
733 header
= &obd
->obd_svc_stats
->ls_cnt_header
[PTLRPC_REQWAIT_CNTR
];
734 lprocfs_stats_collect(obd
->obd_svc_stats
, PTLRPC_REQWAIT_CNTR
, &ret
);
735 if (ret
.lc_count
!= 0) {
736 /* first argument to do_div MUST be __u64 */
737 __u64 sum
= ret
.lc_sum
;
738 do_div(sum
, ret
.lc_count
);
745 " unregistering: %u\n"
747 " avg_waittime: "LPU64
" %s\n",
748 atomic_read(&imp
->imp_inflight
),
749 atomic_read(&imp
->imp_unregistering
),
750 atomic_read(&imp
->imp_timeouts
),
751 ret
.lc_sum
, header
->lc_units
);
754 for(j
= 0; j
< IMP_AT_MAX_PORTALS
; j
++) {
755 if (imp
->imp_at
.iat_portal
[j
] == 0)
757 k
= max_t(unsigned int, k
,
758 at_get(&imp
->imp_at
.iat_service_estimate
[j
]));
761 " service_estimates:\n"
762 " services: %u sec\n"
763 " network: %u sec\n",
765 at_get(&imp
->imp_at
.iat_net_latency
));
769 " last_replay: "LPU64
"\n"
770 " peer_committed: "LPU64
"\n"
771 " last_checked: "LPU64
"\n",
772 imp
->imp_last_replay_transno
,
773 imp
->imp_peer_committed_transno
,
774 imp
->imp_last_transno_checked
);
777 for (rw
= 0; rw
<= 1; rw
++) {
778 lprocfs_stats_collect(obd
->obd_svc_stats
,
779 PTLRPC_LAST_CNTR
+ BRW_READ_BYTES
+ rw
,
781 if (ret
.lc_sum
> 0 && ret
.lc_count
> 0) {
782 /* first argument to do_div MUST be __u64 */
783 __u64 sum
= ret
.lc_sum
;
784 do_div(sum
, ret
.lc_count
);
787 " %s_data_averages:\n"
788 " bytes_per_rpc: "LPU64
"\n",
789 rw
? "write" : "read",
793 j
= opcode_offset(OST_READ
+ rw
) + EXTRA_MAX_OPCODES
;
794 header
= &obd
->obd_svc_stats
->ls_cnt_header
[j
];
795 lprocfs_stats_collect(obd
->obd_svc_stats
, j
, &ret
);
796 if (ret
.lc_sum
> 0 && ret
.lc_count
!= 0) {
797 /* first argument to do_div MUST be __u64 */
798 __u64 sum
= ret
.lc_sum
;
799 do_div(sum
, ret
.lc_count
);
802 " %s_per_rpc: "LPU64
"\n",
803 header
->lc_units
, ret
.lc_sum
);
807 " MB_per_sec: %u.%.02u\n",
808 k
/ j
, (100 * k
/ j
) % 100);
813 LPROCFS_CLIMP_EXIT(obd
);
816 EXPORT_SYMBOL(lprocfs_rd_import
);
818 int lprocfs_rd_state(struct seq_file
*m
, void *data
)
820 struct obd_device
*obd
= (struct obd_device
*)data
;
821 struct obd_import
*imp
;
824 LASSERT(obd
!= NULL
);
825 LPROCFS_CLIMP_CHECK(obd
);
826 imp
= obd
->u
.cli
.cl_import
;
828 seq_printf(m
, "current_state: %s\n",
829 ptlrpc_import_state_name(imp
->imp_state
));
830 seq_printf(m
, "state_history:\n");
831 k
= imp
->imp_state_hist_idx
;
832 for (j
= 0; j
< IMP_STATE_HIST_LEN
; j
++) {
833 struct import_state_hist
*ish
=
834 &imp
->imp_state_hist
[(k
+ j
) % IMP_STATE_HIST_LEN
];
835 if (ish
->ish_state
== 0)
837 seq_printf(m
, " - ["CFS_TIME_T
", %s]\n",
839 ptlrpc_import_state_name(ish
->ish_state
));
842 LPROCFS_CLIMP_EXIT(obd
);
845 EXPORT_SYMBOL(lprocfs_rd_state
);
847 int lprocfs_at_hist_helper(struct seq_file
*m
, struct adaptive_timeout
*at
)
850 for (i
= 0; i
< AT_BINS
; i
++)
851 seq_printf(m
, "%3u ", at
->at_hist
[i
]);
855 EXPORT_SYMBOL(lprocfs_at_hist_helper
);
857 /* See also ptlrpc_lprocfs_rd_timeouts */
858 int lprocfs_rd_timeouts(struct seq_file
*m
, void *data
)
860 struct obd_device
*obd
= (struct obd_device
*)data
;
861 struct obd_import
*imp
;
862 unsigned int cur
, worst
;
867 LASSERT(obd
!= NULL
);
868 LPROCFS_CLIMP_CHECK(obd
);
869 imp
= obd
->u
.cli
.cl_import
;
871 now
= cfs_time_current_sec();
873 /* Some network health info for kicks */
874 s2dhms(&ts
, now
- imp
->imp_last_reply_time
);
875 seq_printf(m
, "%-10s : %ld, "DHMS_FMT
" ago\n",
876 "last reply", imp
->imp_last_reply_time
, DHMS_VARS(&ts
));
878 cur
= at_get(&imp
->imp_at
.iat_net_latency
);
879 worst
= imp
->imp_at
.iat_net_latency
.at_worst_ever
;
880 worstt
= imp
->imp_at
.iat_net_latency
.at_worst_time
;
881 s2dhms(&ts
, now
- worstt
);
882 seq_printf(m
, "%-10s : cur %3u worst %3u (at %ld, "DHMS_FMT
" ago) ",
883 "network", cur
, worst
, worstt
, DHMS_VARS(&ts
));
884 lprocfs_at_hist_helper(m
, &imp
->imp_at
.iat_net_latency
);
886 for(i
= 0; i
< IMP_AT_MAX_PORTALS
; i
++) {
887 if (imp
->imp_at
.iat_portal
[i
] == 0)
889 cur
= at_get(&imp
->imp_at
.iat_service_estimate
[i
]);
890 worst
= imp
->imp_at
.iat_service_estimate
[i
].at_worst_ever
;
891 worstt
= imp
->imp_at
.iat_service_estimate
[i
].at_worst_time
;
892 s2dhms(&ts
, now
- worstt
);
893 seq_printf(m
, "portal %-2d : cur %3u worst %3u (at %ld, "
894 DHMS_FMT
" ago) ", imp
->imp_at
.iat_portal
[i
],
895 cur
, worst
, worstt
, DHMS_VARS(&ts
));
896 lprocfs_at_hist_helper(m
, &imp
->imp_at
.iat_service_estimate
[i
]);
899 LPROCFS_CLIMP_EXIT(obd
);
902 EXPORT_SYMBOL(lprocfs_rd_timeouts
);
904 int lprocfs_rd_connect_flags(struct seq_file
*m
, void *data
)
906 struct obd_device
*obd
= data
;
909 LPROCFS_CLIMP_CHECK(obd
);
910 flags
= obd
->u
.cli
.cl_import
->imp_connect_data
.ocd_connect_flags
;
911 seq_printf(m
, "flags="LPX64
"\n", flags
);
912 obd_connect_seq_flags2str(m
, flags
, "\n");
914 LPROCFS_CLIMP_EXIT(obd
);
917 EXPORT_SYMBOL(lprocfs_rd_connect_flags
);
919 int lprocfs_rd_num_exports(struct seq_file
*m
, void *data
)
921 struct obd_device
*obd
= data
;
923 LASSERT(obd
!= NULL
);
924 return seq_printf(m
, "%u\n", obd
->obd_num_exports
);
926 EXPORT_SYMBOL(lprocfs_rd_num_exports
);
928 int lprocfs_rd_numrefs(struct seq_file
*m
, void *data
)
930 struct obd_type
*class = (struct obd_type
*) data
;
932 LASSERT(class != NULL
);
933 return seq_printf(m
, "%d\n", class->typ_refcnt
);
935 EXPORT_SYMBOL(lprocfs_rd_numrefs
);
937 int lprocfs_obd_setup(struct obd_device
*obd
, struct lprocfs_vars
*list
)
941 LASSERT(obd
!= NULL
);
942 LASSERT(obd
->obd_magic
== OBD_DEVICE_MAGIC
);
943 LASSERT(obd
->obd_type
->typ_procroot
!= NULL
);
945 obd
->obd_proc_entry
= lprocfs_register(obd
->obd_name
,
946 obd
->obd_type
->typ_procroot
,
948 if (IS_ERR(obd
->obd_proc_entry
)) {
949 rc
= PTR_ERR(obd
->obd_proc_entry
);
950 CERROR("error %d setting up lprocfs for %s\n",rc
,obd
->obd_name
);
951 obd
->obd_proc_entry
= NULL
;
955 EXPORT_SYMBOL(lprocfs_obd_setup
);
957 int lprocfs_obd_cleanup(struct obd_device
*obd
)
961 if (obd
->obd_proc_exports_entry
) {
962 /* Should be no exports left */
963 lprocfs_remove(&obd
->obd_proc_exports_entry
);
964 obd
->obd_proc_exports_entry
= NULL
;
966 if (obd
->obd_proc_entry
) {
967 lprocfs_remove(&obd
->obd_proc_entry
);
968 obd
->obd_proc_entry
= NULL
;
972 EXPORT_SYMBOL(lprocfs_obd_cleanup
);
974 static void lprocfs_free_client_stats(struct nid_stat
*client_stat
)
976 CDEBUG(D_CONFIG
, "stat %p - data %p/%p\n", client_stat
,
977 client_stat
->nid_proc
, client_stat
->nid_stats
);
979 LASSERTF(atomic_read(&client_stat
->nid_exp_ref_count
) == 0,
980 "nid %s:count %d\n", libcfs_nid2str(client_stat
->nid
),
981 atomic_read(&client_stat
->nid_exp_ref_count
));
983 if (client_stat
->nid_proc
)
984 lprocfs_remove(&client_stat
->nid_proc
);
986 if (client_stat
->nid_stats
)
987 lprocfs_free_stats(&client_stat
->nid_stats
);
989 if (client_stat
->nid_ldlm_stats
)
990 lprocfs_free_stats(&client_stat
->nid_ldlm_stats
);
992 OBD_FREE_PTR(client_stat
);
997 void lprocfs_free_per_client_stats(struct obd_device
*obd
)
999 struct cfs_hash
*hash
= obd
->obd_nid_stats_hash
;
1000 struct nid_stat
*stat
;
1002 /* we need extra list - because hash_exit called to early */
1003 /* not need locking because all clients is died */
1004 while (!list_empty(&obd
->obd_nid_stats
)) {
1005 stat
= list_entry(obd
->obd_nid_stats
.next
,
1006 struct nid_stat
, nid_list
);
1007 list_del_init(&stat
->nid_list
);
1008 cfs_hash_del(hash
, &stat
->nid
, &stat
->nid_hash
);
1009 lprocfs_free_client_stats(stat
);
1012 EXPORT_SYMBOL(lprocfs_free_per_client_stats
);
1014 struct lprocfs_stats
*lprocfs_alloc_stats(unsigned int num
,
1015 enum lprocfs_stats_flags flags
)
1017 struct lprocfs_stats
*stats
;
1018 unsigned int num_entry
;
1019 unsigned int percpusize
= 0;
1025 if (lprocfs_no_percpu_stats
!= 0)
1026 flags
|= LPROCFS_STATS_FLAG_NOPERCPU
;
1028 if (flags
& LPROCFS_STATS_FLAG_NOPERCPU
)
1031 num_entry
= num_possible_cpus();
1033 /* alloc percpu pointers for all possible cpu slots */
1034 LIBCFS_ALLOC(stats
, offsetof(typeof(*stats
), ls_percpu
[num_entry
]));
1038 stats
->ls_num
= num
;
1039 stats
->ls_flags
= flags
;
1040 spin_lock_init(&stats
->ls_lock
);
1042 /* alloc num of counter headers */
1043 LIBCFS_ALLOC(stats
->ls_cnt_header
,
1044 stats
->ls_num
* sizeof(struct lprocfs_counter_header
));
1045 if (stats
->ls_cnt_header
== NULL
)
1048 if ((flags
& LPROCFS_STATS_FLAG_NOPERCPU
) != 0) {
1049 /* contains only one set counters */
1050 percpusize
= lprocfs_stats_counter_size(stats
);
1051 LIBCFS_ALLOC_ATOMIC(stats
->ls_percpu
[0], percpusize
);
1052 if (stats
->ls_percpu
[0] == NULL
)
1054 stats
->ls_biggest_alloc_num
= 1;
1055 } else if ((flags
& LPROCFS_STATS_FLAG_IRQ_SAFE
) != 0) {
1056 /* alloc all percpu data, currently only obd_memory use this */
1057 for (i
= 0; i
< num_entry
; ++i
)
1058 if (lprocfs_stats_alloc_one(stats
, i
) < 0)
1065 lprocfs_free_stats(&stats
);
1068 EXPORT_SYMBOL(lprocfs_alloc_stats
);
1070 void lprocfs_free_stats(struct lprocfs_stats
**statsh
)
1072 struct lprocfs_stats
*stats
= *statsh
;
1073 unsigned int num_entry
;
1074 unsigned int percpusize
;
1077 if (stats
== NULL
|| stats
->ls_num
== 0)
1081 if (stats
->ls_flags
& LPROCFS_STATS_FLAG_NOPERCPU
)
1084 num_entry
= num_possible_cpus();
1086 percpusize
= lprocfs_stats_counter_size(stats
);
1087 for (i
= 0; i
< num_entry
; i
++)
1088 if (stats
->ls_percpu
[i
] != NULL
)
1089 LIBCFS_FREE(stats
->ls_percpu
[i
], percpusize
);
1090 if (stats
->ls_cnt_header
!= NULL
)
1091 LIBCFS_FREE(stats
->ls_cnt_header
, stats
->ls_num
*
1092 sizeof(struct lprocfs_counter_header
));
1093 LIBCFS_FREE(stats
, offsetof(typeof(*stats
), ls_percpu
[num_entry
]));
1095 EXPORT_SYMBOL(lprocfs_free_stats
);
1097 void lprocfs_clear_stats(struct lprocfs_stats
*stats
)
1099 struct lprocfs_counter
*percpu_cntr
;
1102 unsigned int num_entry
;
1103 unsigned long flags
= 0;
1105 num_entry
= lprocfs_stats_lock(stats
, LPROCFS_GET_NUM_CPU
, &flags
);
1107 for (i
= 0; i
< num_entry
; i
++) {
1108 if (stats
->ls_percpu
[i
] == NULL
)
1110 for (j
= 0; j
< stats
->ls_num
; j
++) {
1111 percpu_cntr
= lprocfs_stats_counter_get(stats
, i
, j
);
1112 percpu_cntr
->lc_count
= 0;
1113 percpu_cntr
->lc_min
= LC_MIN_INIT
;
1114 percpu_cntr
->lc_max
= 0;
1115 percpu_cntr
->lc_sumsquare
= 0;
1116 percpu_cntr
->lc_sum
= 0;
1117 if (stats
->ls_flags
& LPROCFS_STATS_FLAG_IRQ_SAFE
)
1118 percpu_cntr
->lc_sum_irq
= 0;
1122 lprocfs_stats_unlock(stats
, LPROCFS_GET_NUM_CPU
, &flags
);
1124 EXPORT_SYMBOL(lprocfs_clear_stats
);
1126 static ssize_t
lprocfs_stats_seq_write(struct file
*file
,
1127 const char __user
*buf
,
1128 size_t len
, loff_t
*off
)
1130 struct seq_file
*seq
= file
->private_data
;
1131 struct lprocfs_stats
*stats
= seq
->private;
1133 lprocfs_clear_stats(stats
);
1138 static void *lprocfs_stats_seq_start(struct seq_file
*p
, loff_t
*pos
)
1140 struct lprocfs_stats
*stats
= p
->private;
1142 return (*pos
< stats
->ls_num
) ? pos
: NULL
;
1145 static void lprocfs_stats_seq_stop(struct seq_file
*p
, void *v
)
1149 static void *lprocfs_stats_seq_next(struct seq_file
*p
, void *v
, loff_t
*pos
)
1152 return lprocfs_stats_seq_start(p
, pos
);
1155 /* seq file export of one lprocfs counter */
1156 static int lprocfs_stats_seq_show(struct seq_file
*p
, void *v
)
1158 struct lprocfs_stats
*stats
= p
->private;
1159 struct lprocfs_counter_header
*hdr
;
1160 struct lprocfs_counter ctr
;
1161 int idx
= *(loff_t
*)v
;
1166 do_gettimeofday(&now
);
1167 rc
= seq_printf(p
, "%-25s %lu.%lu secs.usecs\n",
1168 "snapshot_time", now
.tv_sec
, (unsigned long)now
.tv_usec
);
1172 hdr
= &stats
->ls_cnt_header
[idx
];
1173 lprocfs_stats_collect(stats
, idx
, &ctr
);
1175 if (ctr
.lc_count
== 0)
1178 rc
= seq_printf(p
, "%-25s "LPD64
" samples [%s]", hdr
->lc_name
,
1179 ctr
.lc_count
, hdr
->lc_units
);
1184 if ((hdr
->lc_config
& LPROCFS_CNTR_AVGMINMAX
) && (ctr
.lc_count
> 0)) {
1185 rc
= seq_printf(p
, " "LPD64
" "LPD64
" "LPD64
,
1186 ctr
.lc_min
, ctr
.lc_max
, ctr
.lc_sum
);
1189 if (hdr
->lc_config
& LPROCFS_CNTR_STDDEV
)
1190 rc
= seq_printf(p
, " "LPD64
, ctr
.lc_sumsquare
);
1194 rc
= seq_printf(p
, "\n");
1196 return (rc
< 0) ? rc
: 0;
1199 struct seq_operations lprocfs_stats_seq_sops
= {
1200 .start
= lprocfs_stats_seq_start
,
1201 .stop
= lprocfs_stats_seq_stop
,
1202 .next
= lprocfs_stats_seq_next
,
1203 .show
= lprocfs_stats_seq_show
,
1206 static int lprocfs_stats_seq_open(struct inode
*inode
, struct file
*file
)
1208 struct seq_file
*seq
;
1211 rc
= seq_open(file
, &lprocfs_stats_seq_sops
);
1214 seq
= file
->private_data
;
1215 seq
->private = PDE_DATA(inode
);
1219 struct file_operations lprocfs_stats_seq_fops
= {
1220 .owner
= THIS_MODULE
,
1221 .open
= lprocfs_stats_seq_open
,
1223 .write
= lprocfs_stats_seq_write
,
1224 .llseek
= seq_lseek
,
1225 .release
= lprocfs_seq_release
,
1228 int lprocfs_register_stats(struct proc_dir_entry
*root
, const char *name
,
1229 struct lprocfs_stats
*stats
)
1231 struct proc_dir_entry
*entry
;
1232 LASSERT(root
!= NULL
);
1234 entry
= proc_create_data(name
, 0644, root
,
1235 &lprocfs_stats_seq_fops
, stats
);
1241 EXPORT_SYMBOL(lprocfs_register_stats
);
1243 void lprocfs_counter_init(struct lprocfs_stats
*stats
, int index
,
1244 unsigned conf
, const char *name
, const char *units
)
1246 struct lprocfs_counter_header
*header
;
1247 struct lprocfs_counter
*percpu_cntr
;
1248 unsigned long flags
= 0;
1250 unsigned int num_cpu
;
1252 LASSERT(stats
!= NULL
);
1254 header
= &stats
->ls_cnt_header
[index
];
1255 LASSERTF(header
!= NULL
, "Failed to allocate stats header:[%d]%s/%s\n",
1256 index
, name
, units
);
1258 header
->lc_config
= conf
;
1259 header
->lc_name
= name
;
1260 header
->lc_units
= units
;
1262 num_cpu
= lprocfs_stats_lock(stats
, LPROCFS_GET_NUM_CPU
, &flags
);
1263 for (i
= 0; i
< num_cpu
; ++i
) {
1264 if (stats
->ls_percpu
[i
] == NULL
)
1266 percpu_cntr
= lprocfs_stats_counter_get(stats
, i
, index
);
1267 percpu_cntr
->lc_count
= 0;
1268 percpu_cntr
->lc_min
= LC_MIN_INIT
;
1269 percpu_cntr
->lc_max
= 0;
1270 percpu_cntr
->lc_sumsquare
= 0;
1271 percpu_cntr
->lc_sum
= 0;
1272 if ((stats
->ls_flags
& LPROCFS_STATS_FLAG_IRQ_SAFE
) != 0)
1273 percpu_cntr
->lc_sum_irq
= 0;
1275 lprocfs_stats_unlock(stats
, LPROCFS_GET_NUM_CPU
, &flags
);
1277 EXPORT_SYMBOL(lprocfs_counter_init
);
1279 #define LPROCFS_OBD_OP_INIT(base, stats, op) \
1281 unsigned int coffset = base + OBD_COUNTER_OFFSET(op); \
1282 LASSERT(coffset < stats->ls_num); \
1283 lprocfs_counter_init(stats, coffset, 0, #op, "reqs"); \
1286 void lprocfs_init_ops_stats(int num_private_stats
, struct lprocfs_stats
*stats
)
1288 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, iocontrol
);
1289 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, get_info
);
1290 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, set_info_async
);
1291 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, attach
);
1292 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, detach
);
1293 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, setup
);
1294 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, precleanup
);
1295 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, cleanup
);
1296 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, process_config
);
1297 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, postrecov
);
1298 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, add_conn
);
1299 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, del_conn
);
1300 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, connect
);
1301 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, reconnect
);
1302 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, disconnect
);
1303 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, fid_init
);
1304 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, fid_fini
);
1305 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, fid_alloc
);
1306 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, statfs
);
1307 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, statfs_async
);
1308 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, packmd
);
1309 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, unpackmd
);
1310 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, preallocate
);
1311 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, precreate
);
1312 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, create
);
1313 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, create_async
);
1314 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, destroy
);
1315 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, setattr
);
1316 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, setattr_async
);
1317 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, getattr
);
1318 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, getattr_async
);
1319 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, brw
);
1320 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, merge_lvb
);
1321 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, adjust_kms
);
1322 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, punch
);
1323 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, sync
);
1324 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, migrate
);
1325 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, copy
);
1326 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, iterate
);
1327 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, preprw
);
1328 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, commitrw
);
1329 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, enqueue
);
1330 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, change_cbdata
);
1331 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, find_cbdata
);
1332 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, cancel
);
1333 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, cancel_unused
);
1334 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, init_export
);
1335 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, destroy_export
);
1336 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, extent_calc
);
1337 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, llog_init
);
1338 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, llog_connect
);
1339 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, llog_finish
);
1340 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, pin
);
1341 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, unpin
);
1342 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, import_event
);
1343 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, notify
);
1344 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, health_check
);
1345 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, get_uuid
);
1346 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, quotacheck
);
1347 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, quotactl
);
1348 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, ping
);
1349 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, pool_new
);
1350 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, pool_rem
);
1351 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, pool_add
);
1352 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, pool_del
);
1353 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, getref
);
1354 LPROCFS_OBD_OP_INIT(num_private_stats
, stats
, putref
);
1356 EXPORT_SYMBOL(lprocfs_init_ops_stats
);
1358 int lprocfs_alloc_obd_stats(struct obd_device
*obd
, unsigned num_private_stats
)
1360 struct lprocfs_stats
*stats
;
1361 unsigned int num_stats
;
1364 LASSERT(obd
->obd_stats
== NULL
);
1365 LASSERT(obd
->obd_proc_entry
!= NULL
);
1366 LASSERT(obd
->obd_cntr_base
== 0);
1368 num_stats
= ((int)sizeof(*obd
->obd_type
->typ_dt_ops
) / sizeof(void *)) +
1369 num_private_stats
- 1 /* o_owner */;
1370 stats
= lprocfs_alloc_stats(num_stats
, 0);
1374 lprocfs_init_ops_stats(num_private_stats
, stats
);
1376 for (i
= num_private_stats
; i
< num_stats
; i
++) {
1377 /* If this LBUGs, it is likely that an obd
1378 * operation was added to struct obd_ops in
1379 * <obd.h>, and that the corresponding line item
1380 * LPROCFS_OBD_OP_INIT(.., .., opname)
1381 * is missing from the list above. */
1382 LASSERTF(stats
->ls_cnt_header
[i
].lc_name
!= NULL
,
1383 "Missing obd_stat initializer obd_op "
1384 "operation at offset %d.\n", i
- num_private_stats
);
1386 rc
= lprocfs_register_stats(obd
->obd_proc_entry
, "stats", stats
);
1388 lprocfs_free_stats(&stats
);
1390 obd
->obd_stats
= stats
;
1391 obd
->obd_cntr_base
= num_private_stats
;
1395 EXPORT_SYMBOL(lprocfs_alloc_obd_stats
);
1397 void lprocfs_free_obd_stats(struct obd_device
*obd
)
1400 lprocfs_free_stats(&obd
->obd_stats
);
1402 EXPORT_SYMBOL(lprocfs_free_obd_stats
);
1404 #define LPROCFS_MD_OP_INIT(base, stats, op) \
1406 unsigned int coffset = base + MD_COUNTER_OFFSET(op); \
1407 LASSERT(coffset < stats->ls_num); \
1408 lprocfs_counter_init(stats, coffset, 0, #op, "reqs"); \
1411 void lprocfs_init_mps_stats(int num_private_stats
, struct lprocfs_stats
*stats
)
1413 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, getstatus
);
1414 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, null_inode
);
1415 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, find_cbdata
);
1416 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, close
);
1417 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, create
);
1418 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, done_writing
);
1419 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, enqueue
);
1420 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, getattr
);
1421 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, getattr_name
);
1422 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, intent_lock
);
1423 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, link
);
1424 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, rename
);
1425 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, is_subdir
);
1426 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, setattr
);
1427 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, sync
);
1428 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, readpage
);
1429 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, unlink
);
1430 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, setxattr
);
1431 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, getxattr
);
1432 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, init_ea_size
);
1433 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, get_lustre_md
);
1434 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, free_lustre_md
);
1435 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, set_open_replay_data
);
1436 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, clear_open_replay_data
);
1437 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, set_lock_data
);
1438 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, lock_match
);
1439 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, cancel_unused
);
1440 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, renew_capa
);
1441 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, unpack_capa
);
1442 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, get_remote_perm
);
1443 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, intent_getattr_async
);
1444 LPROCFS_MD_OP_INIT(num_private_stats
, stats
, revalidate_lock
);
1446 EXPORT_SYMBOL(lprocfs_init_mps_stats
);
1448 int lprocfs_alloc_md_stats(struct obd_device
*obd
,
1449 unsigned num_private_stats
)
1451 struct lprocfs_stats
*stats
;
1452 unsigned int num_stats
;
1455 LASSERT(obd
->md_stats
== NULL
);
1456 LASSERT(obd
->obd_proc_entry
!= NULL
);
1457 LASSERT(obd
->md_cntr_base
== 0);
1459 num_stats
= 1 + MD_COUNTER_OFFSET(revalidate_lock
) +
1461 stats
= lprocfs_alloc_stats(num_stats
, 0);
1465 lprocfs_init_mps_stats(num_private_stats
, stats
);
1467 for (i
= num_private_stats
; i
< num_stats
; i
++) {
1468 if (stats
->ls_cnt_header
[i
].lc_name
== NULL
) {
1469 CERROR("Missing md_stat initializer md_op "
1470 "operation at offset %d. Aborting.\n",
1471 i
- num_private_stats
);
1475 rc
= lprocfs_register_stats(obd
->obd_proc_entry
, "md_stats", stats
);
1477 lprocfs_free_stats(&stats
);
1479 obd
->md_stats
= stats
;
1480 obd
->md_cntr_base
= num_private_stats
;
1484 EXPORT_SYMBOL(lprocfs_alloc_md_stats
);
1486 void lprocfs_free_md_stats(struct obd_device
*obd
)
1488 struct lprocfs_stats
*stats
= obd
->md_stats
;
1490 if (stats
!= NULL
) {
1491 obd
->md_stats
= NULL
;
1492 obd
->md_cntr_base
= 0;
1493 lprocfs_free_stats(&stats
);
1496 EXPORT_SYMBOL(lprocfs_free_md_stats
);
1498 void lprocfs_init_ldlm_stats(struct lprocfs_stats
*ldlm_stats
)
1500 lprocfs_counter_init(ldlm_stats
,
1501 LDLM_ENQUEUE
- LDLM_FIRST_OPC
,
1502 0, "ldlm_enqueue", "reqs");
1503 lprocfs_counter_init(ldlm_stats
,
1504 LDLM_CONVERT
- LDLM_FIRST_OPC
,
1505 0, "ldlm_convert", "reqs");
1506 lprocfs_counter_init(ldlm_stats
,
1507 LDLM_CANCEL
- LDLM_FIRST_OPC
,
1508 0, "ldlm_cancel", "reqs");
1509 lprocfs_counter_init(ldlm_stats
,
1510 LDLM_BL_CALLBACK
- LDLM_FIRST_OPC
,
1511 0, "ldlm_bl_callback", "reqs");
1512 lprocfs_counter_init(ldlm_stats
,
1513 LDLM_CP_CALLBACK
- LDLM_FIRST_OPC
,
1514 0, "ldlm_cp_callback", "reqs");
1515 lprocfs_counter_init(ldlm_stats
,
1516 LDLM_GL_CALLBACK
- LDLM_FIRST_OPC
,
1517 0, "ldlm_gl_callback", "reqs");
1519 EXPORT_SYMBOL(lprocfs_init_ldlm_stats
);
1521 int lprocfs_exp_print_uuid(struct cfs_hash
*hs
, struct cfs_hash_bd
*bd
,
1522 struct hlist_node
*hnode
, void *data
)
1525 struct obd_export
*exp
= cfs_hash_object(hs
, hnode
);
1526 struct seq_file
*m
= (struct seq_file
*)data
;
1528 if (exp
->exp_nid_stats
)
1529 seq_printf(m
, "%s\n", obd_uuid2str(&exp
->exp_client_uuid
));
1535 lproc_exp_uuid_seq_show(struct seq_file
*m
, void *unused
)
1537 struct nid_stat
*stats
= (struct nid_stat
*)m
->private;
1538 struct obd_device
*obd
= stats
->nid_obd
;
1540 cfs_hash_for_each_key(obd
->obd_nid_hash
, &stats
->nid
,
1541 lprocfs_exp_print_uuid
, m
);
1545 LPROC_SEQ_FOPS_RO(lproc_exp_uuid
);
1547 struct exp_hash_cb_data
{
1552 int lprocfs_exp_print_hash(struct cfs_hash
*hs
, struct cfs_hash_bd
*bd
,
1553 struct hlist_node
*hnode
, void *cb_data
)
1556 struct exp_hash_cb_data
*data
= (struct exp_hash_cb_data
*)cb_data
;
1557 struct obd_export
*exp
= cfs_hash_object(hs
, hnode
);
1559 if (exp
->exp_lock_hash
!= NULL
) {
1561 cfs_hash_debug_header(data
->m
);
1562 data
->first
= false;
1564 cfs_hash_debug_str(hs
, data
->m
);
1571 lproc_exp_hash_seq_show(struct seq_file
*m
, void *unused
)
1573 struct nid_stat
*stats
= (struct nid_stat
*)m
->private;
1574 struct obd_device
*obd
= stats
->nid_obd
;
1575 struct exp_hash_cb_data cb_data
= {m
, true};
1577 cfs_hash_for_each_key(obd
->obd_nid_hash
, &stats
->nid
,
1578 lprocfs_exp_print_hash
, &cb_data
);
1582 LPROC_SEQ_FOPS_RO(lproc_exp_hash
);
1584 int lprocfs_nid_stats_clear_read(struct seq_file
*m
, void *data
)
1586 return seq_printf(m
, "%s\n",
1587 "Write into this file to clear all nid stats and "
1588 "stale nid entries");
1590 EXPORT_SYMBOL(lprocfs_nid_stats_clear_read
);
1592 static int lprocfs_nid_stats_clear_write_cb(void *obj
, void *data
)
1594 struct nid_stat
*stat
= obj
;
1596 CDEBUG(D_INFO
,"refcnt %d\n", atomic_read(&stat
->nid_exp_ref_count
));
1597 if (atomic_read(&stat
->nid_exp_ref_count
) == 1) {
1598 /* object has only hash references. */
1599 spin_lock(&stat
->nid_obd
->obd_nid_lock
);
1600 list_move(&stat
->nid_list
, data
);
1601 spin_unlock(&stat
->nid_obd
->obd_nid_lock
);
1604 /* we has reference to object - only clear data*/
1605 if (stat
->nid_stats
)
1606 lprocfs_clear_stats(stat
->nid_stats
);
1611 int lprocfs_nid_stats_clear_write(struct file
*file
, const char *buffer
,
1612 unsigned long count
, void *data
)
1614 struct obd_device
*obd
= (struct obd_device
*)data
;
1615 struct nid_stat
*client_stat
;
1616 LIST_HEAD(free_list
);
1618 cfs_hash_cond_del(obd
->obd_nid_stats_hash
,
1619 lprocfs_nid_stats_clear_write_cb
, &free_list
);
1621 while (!list_empty(&free_list
)) {
1622 client_stat
= list_entry(free_list
.next
, struct nid_stat
,
1624 list_del_init(&client_stat
->nid_list
);
1625 lprocfs_free_client_stats(client_stat
);
1630 EXPORT_SYMBOL(lprocfs_nid_stats_clear_write
);
1632 int lprocfs_exp_setup(struct obd_export
*exp
, lnet_nid_t
*nid
, int *newnid
)
1634 struct nid_stat
*new_stat
, *old_stat
;
1635 struct obd_device
*obd
= NULL
;
1636 struct proc_dir_entry
*entry
;
1637 char *buffer
= NULL
;
1642 if (!exp
|| !exp
->exp_obd
|| !exp
->exp_obd
->obd_proc_exports_entry
||
1643 !exp
->exp_obd
->obd_nid_stats_hash
)
1646 /* not test against zero because eric say:
1647 * You may only test nid against another nid, or LNET_NID_ANY.
1648 * Anything else is nonsense.*/
1649 if (!nid
|| *nid
== LNET_NID_ANY
)
1654 CDEBUG(D_CONFIG
, "using hash %p\n", obd
->obd_nid_stats_hash
);
1656 OBD_ALLOC_PTR(new_stat
);
1657 if (new_stat
== NULL
)
1660 new_stat
->nid
= *nid
;
1661 new_stat
->nid_obd
= exp
->exp_obd
;
1662 /* we need set default refcount to 1 to balance obd_disconnect */
1663 atomic_set(&new_stat
->nid_exp_ref_count
, 1);
1665 old_stat
= cfs_hash_findadd_unique(obd
->obd_nid_stats_hash
,
1666 nid
, &new_stat
->nid_hash
);
1667 CDEBUG(D_INFO
, "Found stats %p for nid %s - ref %d\n",
1668 old_stat
, libcfs_nid2str(*nid
),
1669 atomic_read(&new_stat
->nid_exp_ref_count
));
1671 /* We need to release old stats because lprocfs_exp_cleanup() hasn't
1672 * been and will never be called. */
1673 if (exp
->exp_nid_stats
) {
1674 nidstat_putref(exp
->exp_nid_stats
);
1675 exp
->exp_nid_stats
= NULL
;
1678 /* Return -EALREADY here so that we know that the /proc
1679 * entry already has been created */
1680 if (old_stat
!= new_stat
) {
1681 exp
->exp_nid_stats
= old_stat
;
1682 GOTO(destroy_new
, rc
= -EALREADY
);
1684 /* not found - create */
1685 OBD_ALLOC(buffer
, LNET_NIDSTR_SIZE
);
1687 GOTO(destroy_new
, rc
= -ENOMEM
);
1689 memcpy(buffer
, libcfs_nid2str(*nid
), LNET_NIDSTR_SIZE
);
1690 new_stat
->nid_proc
= lprocfs_register(buffer
,
1691 obd
->obd_proc_exports_entry
,
1693 OBD_FREE(buffer
, LNET_NIDSTR_SIZE
);
1695 if (IS_ERR(new_stat
->nid_proc
)) {
1696 CERROR("Error making export directory for nid %s\n",
1697 libcfs_nid2str(*nid
));
1698 rc
= PTR_ERR(new_stat
->nid_proc
);
1699 new_stat
->nid_proc
= NULL
;
1700 GOTO(destroy_new_ns
, rc
);
1703 entry
= lprocfs_add_simple(new_stat
->nid_proc
, "uuid",
1704 new_stat
, &lproc_exp_uuid_fops
);
1705 if (IS_ERR(entry
)) {
1706 CWARN("Error adding the NID stats file\n");
1707 rc
= PTR_ERR(entry
);
1708 GOTO(destroy_new_ns
, rc
);
1711 entry
= lprocfs_add_simple(new_stat
->nid_proc
, "hash",
1712 new_stat
, &lproc_exp_hash_fops
);
1713 if (IS_ERR(entry
)) {
1714 CWARN("Error adding the hash file\n");
1715 rc
= PTR_ERR(entry
);
1716 GOTO(destroy_new_ns
, rc
);
1719 exp
->exp_nid_stats
= new_stat
;
1721 /* protect competitive add to list, not need locking on destroy */
1722 spin_lock(&obd
->obd_nid_lock
);
1723 list_add(&new_stat
->nid_list
, &obd
->obd_nid_stats
);
1724 spin_unlock(&obd
->obd_nid_lock
);
1729 if (new_stat
->nid_proc
!= NULL
)
1730 lprocfs_remove(&new_stat
->nid_proc
);
1731 cfs_hash_del(obd
->obd_nid_stats_hash
, nid
, &new_stat
->nid_hash
);
1734 nidstat_putref(new_stat
);
1735 OBD_FREE_PTR(new_stat
);
1738 EXPORT_SYMBOL(lprocfs_exp_setup
);
1740 int lprocfs_exp_cleanup(struct obd_export
*exp
)
1742 struct nid_stat
*stat
= exp
->exp_nid_stats
;
1744 if(!stat
|| !exp
->exp_obd
)
1747 nidstat_putref(exp
->exp_nid_stats
);
1748 exp
->exp_nid_stats
= NULL
;
1752 EXPORT_SYMBOL(lprocfs_exp_cleanup
);
1754 int lprocfs_write_helper(const char *buffer
, unsigned long count
,
1757 return lprocfs_write_frac_helper(buffer
, count
, val
, 1);
1759 EXPORT_SYMBOL(lprocfs_write_helper
);
1761 int lprocfs_seq_read_frac_helper(struct seq_file
*m
, long val
, int mult
)
1763 long decimal_val
, frac_val
;
1765 decimal_val
= val
/ mult
;
1766 seq_printf(m
, "%ld", decimal_val
);
1767 frac_val
= val
% mult
;
1774 /* Three cases: x0, xx, 0x */
1775 if ((frac_val
% 10) != 0)
1776 seq_printf(m
, ".%ld", frac_val
);
1778 seq_printf(m
, ".%ld", frac_val
/ 10);
1781 seq_printf(m
, "\n");
1784 EXPORT_SYMBOL(lprocfs_seq_read_frac_helper
);
1786 int lprocfs_write_u64_helper(const char *buffer
, unsigned long count
,__u64
*val
)
1788 return lprocfs_write_frac_u64_helper(buffer
, count
, val
, 1);
1790 EXPORT_SYMBOL(lprocfs_write_u64_helper
);
1792 int lprocfs_write_frac_u64_helper(const char *buffer
, unsigned long count
,
1793 __u64
*val
, int mult
)
1795 char kernbuf
[22], *end
, *pbuf
;
1796 __u64 whole
, frac
= 0, units
;
1797 unsigned frac_d
= 1;
1799 if (count
> (sizeof(kernbuf
) - 1))
1802 if (copy_from_user(kernbuf
, buffer
, count
))
1805 kernbuf
[count
] = '\0';
1812 whole
= simple_strtoull(pbuf
, &end
, 10);
1816 if (end
!= NULL
&& *end
== '.') {
1820 /* need to limit frac_d to a __u32 */
1821 if (strlen(pbuf
) > 10)
1824 frac
= simple_strtoull(pbuf
, &end
, 10);
1825 /* count decimal places */
1826 for (i
= 0; i
< (end
- pbuf
); i
++)
1843 /* Specified units override the multiplier */
1845 mult
= mult
< 0 ? -units
: units
;
1848 do_div(frac
, frac_d
);
1849 *val
= whole
* mult
+ frac
;
1852 EXPORT_SYMBOL(lprocfs_write_frac_u64_helper
);
1854 static char *lprocfs_strnstr(const char *s1
, const char *s2
, size_t len
)
1863 if (!memcmp(s1
, s2
, l2
))
1871 * Find the string \a name in the input \a buffer, and return a pointer to the
1872 * value immediately following \a name, reducing \a count appropriately.
1873 * If \a name is not found the original \a buffer is returned.
1875 char *lprocfs_find_named_value(const char *buffer
, const char *name
,
1879 size_t buflen
= *count
;
1881 /* there is no strnstr() in rhel5 and ubuntu kernels */
1882 val
= lprocfs_strnstr(buffer
, name
, buflen
);
1884 return (char *)buffer
;
1886 val
+= strlen(name
); /* skip prefix */
1887 while (val
< buffer
+ buflen
&& isspace(*val
)) /* skip separator */
1891 while (val
< buffer
+ buflen
&& isalnum(*val
)) {
1896 return val
- *count
;
1898 EXPORT_SYMBOL(lprocfs_find_named_value
);
1900 int lprocfs_seq_create(struct proc_dir_entry
*parent
,
1903 const struct file_operations
*seq_fops
,
1906 struct proc_dir_entry
*entry
;
1908 /* Disallow secretly (un)writable entries. */
1909 LASSERT((seq_fops
->write
== NULL
) == ((mode
& 0222) == 0));
1910 entry
= proc_create_data(name
, mode
, parent
, seq_fops
, data
);
1917 EXPORT_SYMBOL(lprocfs_seq_create
);
1919 int lprocfs_obd_seq_create(struct obd_device
*dev
,
1922 const struct file_operations
*seq_fops
,
1925 return (lprocfs_seq_create(dev
->obd_proc_entry
, name
,
1926 mode
, seq_fops
, data
));
1928 EXPORT_SYMBOL(lprocfs_obd_seq_create
);
1930 void lprocfs_oh_tally(struct obd_histogram
*oh
, unsigned int value
)
1932 if (value
>= OBD_HIST_MAX
)
1933 value
= OBD_HIST_MAX
- 1;
1935 spin_lock(&oh
->oh_lock
);
1936 oh
->oh_buckets
[value
]++;
1937 spin_unlock(&oh
->oh_lock
);
1939 EXPORT_SYMBOL(lprocfs_oh_tally
);
1941 void lprocfs_oh_tally_log2(struct obd_histogram
*oh
, unsigned int value
)
1945 for (val
= 0; ((1 << val
) < value
) && (val
<= OBD_HIST_MAX
); val
++)
1948 lprocfs_oh_tally(oh
, val
);
1950 EXPORT_SYMBOL(lprocfs_oh_tally_log2
);
1952 unsigned long lprocfs_oh_sum(struct obd_histogram
*oh
)
1954 unsigned long ret
= 0;
1957 for (i
= 0; i
< OBD_HIST_MAX
; i
++)
1958 ret
+= oh
->oh_buckets
[i
];
1961 EXPORT_SYMBOL(lprocfs_oh_sum
);
1963 void lprocfs_oh_clear(struct obd_histogram
*oh
)
1965 spin_lock(&oh
->oh_lock
);
1966 memset(oh
->oh_buckets
, 0, sizeof(oh
->oh_buckets
));
1967 spin_unlock(&oh
->oh_lock
);
1969 EXPORT_SYMBOL(lprocfs_oh_clear
);
1971 int lprocfs_obd_rd_max_pages_per_rpc(struct seq_file
*m
, void *data
)
1973 struct obd_device
*dev
= data
;
1974 struct client_obd
*cli
= &dev
->u
.cli
;
1977 client_obd_list_lock(&cli
->cl_loi_list_lock
);
1978 rc
= seq_printf(m
, "%d\n", cli
->cl_max_pages_per_rpc
);
1979 client_obd_list_unlock(&cli
->cl_loi_list_lock
);
1982 EXPORT_SYMBOL(lprocfs_obd_rd_max_pages_per_rpc
);