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/include/lprocfs_status.h
38 * Top level header file for LProc SNMP
40 * Author: Hariharan Thantry thantry@users.sourceforge.net
42 #ifndef _LPROCFS_SNMP_H
43 #define _LPROCFS_SNMP_H
45 #include <lustre/lustre_idl.h>
46 #if defined(__linux__)
47 #include <linux/lprocfs_status.h>
48 #elif defined(__APPLE__)
49 #include <darwin/lprocfs_status.h>
50 #elif defined(__WINNT__)
51 #include <winnt/lprocfs_status.h>
53 #error Unsupported operating system.
57 #if (defined(__KERNEL__) && defined(CONFIG_PROC_FS))
63 cfs_read_proc_t *read_fptr;
64 cfs_write_proc_t *write_fptr;
66 struct file_operations *fops;
73 struct lprocfs_static_vars {
74 struct lprocfs_vars *module_vars;
75 struct lprocfs_vars *obd_vars;
78 /* if we find more consumers this could be generalized */
79 #define OBD_HIST_MAX 32
80 struct obd_histogram {
82 unsigned long oh_buckets[OBD_HIST_MAX];
104 struct obd_histogram hist[BRW_LAST];
108 /* An lprocfs counter can be configured using the enum bit masks below.
110 * LPROCFS_CNTR_EXTERNALLOCK indicates that an external lock already
111 * protects this counter from concurrent updates. If not specified,
112 * lprocfs an internal per-counter lock variable. External locks are
113 * not used to protect counter increments, but are used to protect
114 * counter readout and resets.
116 * LPROCFS_CNTR_AVGMINMAX indicates a multi-valued counter samples,
117 * (i.e. counter can be incremented by more than "1"). When specified,
118 * the counter maintains min, max and sum in addition to a simple
119 * invocation count. This allows averages to be be computed.
120 * If not specified, the counter is an increment-by-1 counter.
121 * min, max, sum, etc. are not maintained.
123 * LPROCFS_CNTR_STDDEV indicates that the counter should track sum of
124 * squares (for multi-valued counter samples only). This allows
125 * external computation of standard deviation, but involves a 64-bit
126 * multiply per counter increment.
130 LPROCFS_CNTR_EXTERNALLOCK = 0x0001,
131 LPROCFS_CNTR_AVGMINMAX = 0x0002,
132 LPROCFS_CNTR_STDDEV = 0x0004,
134 /* counter data type */
135 LPROCFS_TYPE_REGS = 0x0100,
136 LPROCFS_TYPE_BYTES = 0x0200,
137 LPROCFS_TYPE_PAGES = 0x0400,
138 LPROCFS_TYPE_CYCLE = 0x0800,
141 struct lprocfs_atomic {
146 #define LC_MIN_INIT ((~(__u64)0) >> 1)
148 struct lprocfs_counter {
149 struct lprocfs_atomic lc_cntl; /* may need to move to per set */
150 unsigned int lc_config;
156 const char *lc_name; /* must be static */
157 const char *lc_units; /* must be static */
160 struct lprocfs_percpu {
161 struct lprocfs_counter lp_cntr[0];
164 #define LPROCFS_GET_NUM_CPU 0x0001
165 #define LPROCFS_GET_SMP_ID 0x0002
167 enum lprocfs_stats_flags {
168 LPROCFS_STATS_FLAG_PERCPU = 0x0000, /* per cpu counter */
169 LPROCFS_STATS_FLAG_NOPERCPU = 0x0001, /* stats have no percpu
170 * area and need locking */
173 enum lprocfs_fields_flags {
174 LPROCFS_FIELDS_FLAGS_CONFIG = 0x0001,
175 LPROCFS_FIELDS_FLAGS_SUM = 0x0002,
176 LPROCFS_FIELDS_FLAGS_MIN = 0x0003,
177 LPROCFS_FIELDS_FLAGS_MAX = 0x0004,
178 LPROCFS_FIELDS_FLAGS_AVG = 0x0005,
179 LPROCFS_FIELDS_FLAGS_SUMSQUARE = 0x0006,
180 LPROCFS_FIELDS_FLAGS_COUNT = 0x0007,
183 struct lprocfs_stats {
184 unsigned int ls_num; /* # of counters */
185 int ls_flags; /* See LPROCFS_STATS_FLAG_* */
186 spinlock_t ls_lock; /* Lock used only when there are
187 * no percpu stats areas */
188 struct lprocfs_percpu *ls_percpu[0];
191 static inline int opcode_offset(__u32 opc) {
192 if (opc < OST_LAST_OPC) {
194 return (opc - OST_FIRST_OPC);
195 } else if (opc < MDS_LAST_OPC) {
197 return (opc - MDS_FIRST_OPC +
198 (OST_LAST_OPC - OST_FIRST_OPC));
199 } else if (opc < LDLM_LAST_OPC) {
201 return (opc - LDLM_FIRST_OPC +
202 (MDS_LAST_OPC - MDS_FIRST_OPC) +
203 (OST_LAST_OPC - OST_FIRST_OPC));
204 } else if (opc < MGS_LAST_OPC) {
206 return (opc - MGS_FIRST_OPC +
207 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
208 (MDS_LAST_OPC - MDS_FIRST_OPC) +
209 (OST_LAST_OPC - OST_FIRST_OPC));
210 } else if (opc < OBD_LAST_OPC) {
212 return (opc - OBD_FIRST_OPC +
213 (MGS_LAST_OPC - MGS_FIRST_OPC) +
214 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
215 (MDS_LAST_OPC - MDS_FIRST_OPC) +
216 (OST_LAST_OPC - OST_FIRST_OPC));
217 } else if (opc < LLOG_LAST_OPC) {
219 return (opc - LLOG_FIRST_OPC +
220 (OBD_LAST_OPC - OBD_FIRST_OPC) +
221 (MGS_LAST_OPC - MGS_FIRST_OPC) +
222 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
223 (MDS_LAST_OPC - MDS_FIRST_OPC) +
224 (OST_LAST_OPC - OST_FIRST_OPC));
225 } else if (opc < FLD_LAST_OPC) {
227 return (opc - FLD_FIRST_OPC +
228 (LLOG_LAST_OPC - LLOG_FIRST_OPC) +
229 (OBD_LAST_OPC - OBD_FIRST_OPC) +
230 (MGS_LAST_OPC - MGS_FIRST_OPC) +
231 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
232 (MDS_LAST_OPC - MDS_FIRST_OPC) +
233 (OST_LAST_OPC - OST_FIRST_OPC));
234 } else if (opc < SEQ_LAST_OPC) {
236 return (opc - SEQ_FIRST_OPC +
237 (FLD_LAST_OPC - FLD_FIRST_OPC) +
238 (LLOG_LAST_OPC - LLOG_FIRST_OPC) +
239 (OBD_LAST_OPC - OBD_FIRST_OPC) +
240 (MGS_LAST_OPC - MGS_FIRST_OPC) +
241 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
242 (MDS_LAST_OPC - MDS_FIRST_OPC) +
243 (OST_LAST_OPC - OST_FIRST_OPC));
244 } else if (opc < SEC_LAST_OPC) {
246 return (opc - SEC_FIRST_OPC +
247 (SEQ_LAST_OPC - SEQ_FIRST_OPC) +
248 (FLD_LAST_OPC - FLD_FIRST_OPC) +
249 (LLOG_LAST_OPC - LLOG_FIRST_OPC) +
250 (OBD_LAST_OPC - OBD_FIRST_OPC) +
251 (MGS_LAST_OPC - MGS_FIRST_OPC) +
252 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
253 (MDS_LAST_OPC - MDS_FIRST_OPC) +
254 (OST_LAST_OPC - OST_FIRST_OPC));
261 #define LUSTRE_MAX_OPCODES ((LDLM_LAST_OPC - LDLM_FIRST_OPC) + \
262 (MDS_LAST_OPC - MDS_FIRST_OPC) + \
263 (OST_LAST_OPC - OST_FIRST_OPC) + \
264 (OBD_LAST_OPC - OBD_FIRST_OPC) + \
265 (FLD_LAST_OPC - FLD_FIRST_OPC) + \
266 (SEQ_LAST_OPC - SEQ_FIRST_OPC) + \
267 (MGS_LAST_OPC - MGS_FIRST_OPC) + \
268 (LLOG_LAST_OPC - LLOG_FIRST_OPC) + \
269 (SEC_LAST_OPC - SEC_FIRST_OPC))
271 #define EXTRA_MAX_OPCODES ((PTLRPC_LAST_CNTR - PTLRPC_FIRST_CNTR) + \
272 (EXTRA_LAST_OPC - EXTRA_FIRST_OPC))
275 PTLRPC_REQWAIT_CNTR = 0,
276 PTLRPC_REQQDEPTH_CNTR,
277 PTLRPC_REQACTIVE_CNTR,
279 PTLRPC_REQBUF_AVAIL_CNTR,
283 #define PTLRPC_FIRST_CNTR PTLRPC_REQWAIT_CNTR
286 LDLM_GLIMPSE_ENQUEUE = 0,
302 #define EXTRA_FIRST_OPC LDLM_GLIMPSE_ENQUEUE
304 extern cfs_proc_dir_entry_t *proc_lustre_root;
308 struct obd_histogram;
310 /* Days / hours / mins / seconds format */
314 static inline void s2dhms(struct dhms *ts, time_t secs)
316 ts->d = secs / 86400;
323 #define DHMS_FMT "%dd%dh%02dm%02ds"
324 #define DHMS_VARS(x) (x)->d, (x)->h, (x)->m, (x)->s
329 static inline int lprocfs_stats_lock(struct lprocfs_stats *stats, int type)
333 if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) {
334 if (type & LPROCFS_GET_NUM_CPU)
336 if (type & LPROCFS_GET_SMP_ID)
338 spin_lock(&stats->ls_lock);
340 if (type & LPROCFS_GET_NUM_CPU)
341 rc = num_possible_cpus();
342 if (type & LPROCFS_GET_SMP_ID)
343 rc = smp_processor_id();
348 static inline void lprocfs_stats_unlock(struct lprocfs_stats *stats)
350 if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU)
351 spin_unlock(&stats->ls_lock);
354 /* Two optimized LPROCFS counter increment functions are provided:
355 * lprocfs_counter_incr(cntr, value) - optimized for by-one counters
356 * lprocfs_counter_add(cntr) - use for multi-valued counters
357 * Counter data layout allows config flag, counter lock and the
358 * count itself to reside within a single cache line.
361 extern void lprocfs_counter_add(struct lprocfs_stats *stats, int idx,
363 extern void lprocfs_counter_sub(struct lprocfs_stats *stats, int idx,
366 #define lprocfs_counter_incr(stats, idx) \
367 lprocfs_counter_add(stats, idx, 1)
368 #define lprocfs_counter_decr(stats, idx) \
369 lprocfs_counter_sub(stats, idx, 1)
371 extern __s64 lprocfs_read_helper(struct lprocfs_counter *lc,
372 enum lprocfs_fields_flags field);
373 static inline __u64 lprocfs_stats_collector(struct lprocfs_stats *stats,
375 enum lprocfs_fields_flags field)
380 LASSERT(stats != NULL);
381 for (i = 0; i < num_possible_cpus(); i++)
382 ret += lprocfs_read_helper(&(stats->ls_percpu[i]->lp_cntr[idx]),
387 extern struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num,
388 enum lprocfs_stats_flags flags);
389 extern void lprocfs_clear_stats(struct lprocfs_stats *stats);
390 extern void lprocfs_free_stats(struct lprocfs_stats **stats);
391 extern void lprocfs_init_ops_stats(int num_private_stats,
392 struct lprocfs_stats *stats);
393 extern int lprocfs_alloc_obd_stats(struct obd_device *obddev,
394 unsigned int num_private_stats);
395 extern void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
396 unsigned conf, const char *name,
398 extern void lprocfs_free_obd_stats(struct obd_device *obddev);
401 extern int lprocfs_add_clear_entry(struct obd_device * obd,
402 cfs_proc_dir_entry_t *entry);
403 extern int lprocfs_exp_setup(struct obd_export *exp,
404 lnet_nid_t *peer_nid, int *newnid);
405 extern int lprocfs_exp_cleanup(struct obd_export *exp);
406 extern int lprocfs_add_simple(struct proc_dir_entry *root,
407 char *name, cfs_read_proc_t *read_proc,
408 cfs_write_proc_t *write_proc, void *data);
409 extern struct proc_dir_entry *lprocfs_add_symlink(const char *name,
410 struct proc_dir_entry *parent, const char *dest);
411 extern void lprocfs_free_per_client_stats(struct obd_device *obd);
412 extern int lprocfs_nid_stats_clear_write(struct file *file, const char *buffer,
413 unsigned long count, void *data);
414 extern int lprocfs_nid_stats_clear_read(char *page, char **start, off_t off,
415 int count, int *eof, void *data);
417 extern int lprocfs_register_stats(cfs_proc_dir_entry_t *root, const char *name,
418 struct lprocfs_stats *stats);
420 /* lprocfs_status.c */
421 extern int lprocfs_add_vars(cfs_proc_dir_entry_t *root,
422 struct lprocfs_vars *var,
425 extern cfs_proc_dir_entry_t *lprocfs_register(const char *name,
426 cfs_proc_dir_entry_t *parent,
427 struct lprocfs_vars *list,
430 extern void lprocfs_remove(cfs_proc_dir_entry_t **root);
431 extern void lprocfs_remove_proc_entry(const char *name,
432 struct proc_dir_entry *parent);
434 extern cfs_proc_dir_entry_t *lprocfs_srch(cfs_proc_dir_entry_t *root,
437 extern int lprocfs_obd_setup(struct obd_device *obd, struct lprocfs_vars *list);
438 extern int lprocfs_obd_cleanup(struct obd_device *obd);
439 extern int lprocfs_add_simple(struct proc_dir_entry *root, char *name,
440 cfs_read_proc_t *read_proc,
441 cfs_write_proc_t *write_proc,
443 extern void lprocfs_free_per_client_stats(struct obd_device *obd);
444 extern struct file_operations lprocfs_evict_client_fops;
446 extern int lprocfs_seq_create(cfs_proc_dir_entry_t *parent, char *name,
447 mode_t mode, struct file_operations *seq_fops,
449 extern int lprocfs_obd_seq_create(struct obd_device *dev, char *name,
450 mode_t mode, struct file_operations *seq_fops,
453 /* Generic callbacks */
455 extern int lprocfs_rd_u64(char *page, char **start, off_t off,
456 int count, int *eof, void *data);
457 extern int lprocfs_rd_atomic(char *page, char **start, off_t off,
458 int count, int *eof, void *data);
459 extern int lprocfs_wr_atomic(struct file *file, const char *buffer,
460 unsigned long count, void *data);
461 extern int lprocfs_rd_uint(char *page, char **start, off_t off,
462 int count, int *eof, void *data);
463 extern int lprocfs_wr_uint(struct file *file, const char *buffer,
464 unsigned long count, void *data);
465 extern int lprocfs_rd_uuid(char *page, char **start, off_t off,
466 int count, int *eof, void *data);
467 extern int lprocfs_rd_name(char *page, char **start, off_t off,
468 int count, int *eof, void *data);
469 extern int lprocfs_rd_fstype(char *page, char **start, off_t off,
470 int count, int *eof, void *data);
471 extern int lprocfs_rd_server_uuid(char *page, char **start, off_t off,
472 int count, int *eof, void *data);
473 extern int lprocfs_rd_conn_uuid(char *page, char **start, off_t off,
474 int count, int *eof, void *data);
475 extern int lprocfs_rd_connect_flags(char *page, char **start, off_t off,
476 int count, int *eof, void *data);
477 extern int lprocfs_rd_num_exports(char *page, char **start, off_t off,
478 int count, int *eof, void *data);
479 extern int lprocfs_rd_numrefs(char *page, char **start, off_t off,
480 int count, int *eof, void *data);
481 struct adaptive_timeout;
482 extern int lprocfs_at_hist_helper(char *page, int count, int rc,
483 struct adaptive_timeout *at);
484 extern int lprocfs_rd_timeouts(char *page, char **start, off_t off,
485 int count, int *eof, void *data);
486 extern int lprocfs_wr_timeouts(struct file *file, const char *buffer,
487 unsigned long count, void *data);
488 extern int lprocfs_wr_evict_client(struct file *file, const char *buffer,
489 unsigned long count, void *data);
490 extern int lprocfs_wr_ping(struct file *file, const char *buffer,
491 unsigned long count, void *data);
494 extern int lprocfs_rd_blksize(char *page, char **start, off_t off,
495 int count, int *eof, void *data);
496 extern int lprocfs_rd_kbytestotal(char *page, char **start, off_t off,
497 int count, int *eof, void *data);
498 extern int lprocfs_rd_kbytesfree(char *page, char **start, off_t off,
499 int count, int *eof, void *data);
500 extern int lprocfs_rd_kbytesavail(char *page, char **start, off_t off,
501 int count, int *eof, void *data);
502 extern int lprocfs_rd_filestotal(char *page, char **start, off_t off,
503 int count, int *eof, void *data);
504 extern int lprocfs_rd_filesfree(char *page, char **start, off_t off,
505 int count, int *eof, void *data);
506 extern int lprocfs_rd_filegroups(char *page, char **start, off_t off,
507 int count, int *eof, void *data);
509 extern int lprocfs_write_helper(const char *buffer, unsigned long count,
511 extern int lprocfs_write_frac_helper(const char *buffer, unsigned long count,
513 extern int lprocfs_read_frac_helper(char *buffer, unsigned long count,
515 extern int lprocfs_write_u64_helper(const char *buffer, unsigned long count,
517 extern int lprocfs_write_frac_u64_helper(const char *buffer, unsigned long count,
518 __u64 *val, int mult);
519 void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value);
520 void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value);
521 void lprocfs_oh_clear(struct obd_histogram *oh);
522 unsigned long lprocfs_oh_sum(struct obd_histogram *oh);
524 /* lprocfs_status.c: counter read/write functions */
525 extern int lprocfs_counter_read(char *page, char **start, off_t off,
526 int count, int *eof, void *data);
527 extern int lprocfs_counter_write(struct file *file, const char *buffer,
528 unsigned long count, void *data);
530 /* lprocfs_status.c: recovery status */
531 int lprocfs_obd_rd_recovery_status(char *page, char **start, off_t off,
532 int count, int *eof, void *data);
534 /* lprocfs_statuc.c: hash statistics */
535 int lprocfs_obd_rd_hash(char *page, char **start, off_t off,
536 int count, int *eof, void *data);
538 extern int lprocfs_seq_release(struct inode *, struct file *);
540 /* in lprocfs_stat.c, to protect the private data for proc entries */
541 extern struct rw_semaphore _lprocfs_lock;
542 #define LPROCFS_ENTRY() do { \
543 down_read(&_lprocfs_lock); \
545 #define LPROCFS_EXIT() do { \
546 up_read(&_lprocfs_lock); \
548 #define LPROCFS_ENTRY_AND_CHECK(dp) do { \
549 typecheck(struct proc_dir_entry *, dp); \
551 if ((dp)->deleted) { \
556 #define LPROCFS_WRITE_ENTRY() do { \
557 down_write(&_lprocfs_lock); \
559 #define LPROCFS_WRITE_EXIT() do { \
560 up_write(&_lprocfs_lock); \
563 /* You must use these macros when you want to refer to
564 * the import in a client obd_device for a lprocfs entry */
565 #define LPROCFS_CLIMP_CHECK(obd) do { \
566 typecheck(struct obd_device *, obd); \
567 down_read(&(obd)->u.cli.cl_sem); \
568 if ((obd)->u.cli.cl_import == NULL) { \
569 up_read(&(obd)->u.cli.cl_sem); \
573 #define LPROCFS_CLIMP_EXIT(obd) \
574 up_read(&(obd)->u.cli.cl_sem);
577 /* write the name##_seq_show function, call LPROC_SEQ_FOPS_RO for read-only
578 proc entries; otherwise, you will define name##_seq_write function also for
579 a read-write proc entry, and then call LPROC_SEQ_SEQ instead. Finally,
580 call lprocfs_obd_seq_create(obd, filename, 0444, &name#_fops, data); */
581 #define __LPROC_SEQ_FOPS(name, custom_seq_write) \
582 static int name##_seq_open(struct inode *inode, struct file *file) { \
583 struct proc_dir_entry *dp = PDE(inode); \
585 LPROCFS_ENTRY_AND_CHECK(dp); \
586 rc = single_open(file, name##_seq_show, dp->data); \
593 struct file_operations name##_fops = { \
594 .owner = THIS_MODULE, \
595 .open = name##_seq_open, \
597 .write = custom_seq_write, \
598 .llseek = seq_lseek, \
599 .release = lprocfs_seq_release, \
602 #define LPROC_SEQ_FOPS_RO(name) __LPROC_SEQ_FOPS(name, NULL)
603 #define LPROC_SEQ_FOPS(name) __LPROC_SEQ_FOPS(name, name##_seq_write)
606 struct ptlrpc_request;
607 extern void target_print_req(void *seq_file, struct ptlrpc_request *req);
609 /* lprocfs_status.c: read recovery max time bz13079 */
610 int lprocfs_obd_rd_recovery_maxtime(char *page, char **start, off_t off,
611 int count, int *eof, void *data);
613 /* lprocfs_status.c: write recovery max time bz13079 */
614 int lprocfs_obd_wr_recovery_maxtime(struct file *file, const char *buffer,
615 unsigned long count, void *data);
617 /* LPROCFS is not defined */
618 static inline void lprocfs_counter_add(struct lprocfs_stats *stats,
619 int index, long amount) { return; }
620 static inline void lprocfs_counter_incr(struct lprocfs_stats *stats,
621 int index) { return; }
622 static inline void lprocfs_counter_sub(struct lprocfs_stats *stats,
623 int index, long amount) { return; }
624 static inline void lprocfs_counter_init(struct lprocfs_stats *stats,
625 int index, unsigned conf,
626 const char *name, const char *units)
629 static inline __u64 lc_read_helper(struct lprocfs_counter *lc,
630 enum lprocfs_fields_flags field)
633 static inline struct lprocfs_stats* lprocfs_alloc_stats(unsigned int num,
634 enum lprocfs_stats_flags flags)
636 static inline void lprocfs_clear_stats(struct lprocfs_stats *stats)
638 static inline void lprocfs_free_stats(struct lprocfs_stats **stats)
640 static inline int lprocfs_register_stats(cfs_proc_dir_entry_t *root,
642 struct lprocfs_stats *stats)
644 static inline void lprocfs_init_ops_stats(int num_private_stats,
645 struct lprocfs_stats *stats)
647 static inline int lprocfs_alloc_obd_stats(struct obd_device *obddev,
648 unsigned int num_private_stats)
650 static inline void lprocfs_free_obd_stats(struct obd_device *obddev)
654 static inline int lprocfs_add_clear_entry(struct obd_export *exp)
656 static inline int lprocfs_exp_setup(struct obd_export *exp,
657 lnet_nid_t *peer_nid, int *newnid)
659 static inline int lprocfs_exp_cleanup(struct obd_export *exp)
661 static inline int lprocfs_add_simple(struct proc_dir_entry *root,
663 cfs_read_proc_t *read_proc,
664 cfs_write_proc_t *write_proc,
667 static inline struct proc_dir_entry *lprocfs_add_symlink(const char *name,
668 struct proc_dir_entry *parent, const char *dest)
670 static inline void lprocfs_free_per_client_stats(struct obd_device *obd)
673 int lprocfs_nid_stats_clear_write(struct file *file, const char *buffer,
674 unsigned long count, void *data)
677 int lprocfs_nid_stats_clear_read(char *page, char **start, off_t off,
678 int count, int *eof, void *data)
681 static inline cfs_proc_dir_entry_t *
682 lprocfs_register(const char *name, cfs_proc_dir_entry_t *parent,
683 struct lprocfs_vars *list, void *data) { return NULL; }
684 static inline int lprocfs_add_vars(cfs_proc_dir_entry_t *root,
685 struct lprocfs_vars *var,
686 void *data) { return 0; }
687 static inline void lprocfs_remove(cfs_proc_dir_entry_t **root) {};
688 static inline void lprocfs_remove_proc_entry(const char *name,
689 struct proc_dir_entry *parent) {};
690 static inline cfs_proc_dir_entry_t *lprocfs_srch(cfs_proc_dir_entry_t *head,
691 const char *name) {return 0;}
692 static inline int lprocfs_obd_setup(struct obd_device *dev,
693 struct lprocfs_vars *list) { return 0; }
694 static inline int lprocfs_obd_cleanup(struct obd_device *dev) { return 0; }
695 static inline int lprocfs_rd_u64(char *page, char **start, off_t off,
696 int count, int *eof, void *data) { return 0; }
697 static inline int lprocfs_rd_uuid(char *page, char **start, off_t off,
698 int count, int *eof, void *data) { return 0; }
699 static inline int lprocfs_rd_name(char *page, char **start, off_t off,
700 int count, int *eof, void *data) { return 0; }
701 static inline int lprocfs_rd_server_uuid(char *page, char **start, off_t off,
702 int count, int *eof, void *data)
704 static inline int lprocfs_rd_conn_uuid(char *page, char **start, off_t off,
705 int count, int *eof, void *data)
707 static inline int lprocfs_rd_connect_flags(char *page, char **start, off_t off,
708 int count, int *eof, void *data)
710 static inline int lprocfs_rd_num_exports(char *page, char **start, off_t off,
711 int count, int *eof, void *data)
713 static inline int lprocfs_rd_numrefs(char *page, char **start, off_t off,
714 int count, int *eof, void *data)
716 struct adaptive_timeout;
717 static inline int lprocfs_at_hist_helper(char *page, int count, int rc,
718 struct adaptive_timeout *at)
720 static inline int lprocfs_rd_timeouts(char *page, char **start, off_t off,
721 int count, int *eof, void *data)
723 static inline int lprocfs_wr_timeouts(struct file *file, const char *buffer,
724 unsigned long count, void *data)
726 static inline int lprocfs_wr_evict_client(struct file *file, const char *buffer,
727 unsigned long count, void *data)
729 static inline int lprocfs_wr_ping(struct file *file, const char *buffer,
730 unsigned long count, void *data)
736 int lprocfs_rd_blksize(char *page, char **start, off_t off,
737 int count, int *eof, void *data) { return 0; }
739 int lprocfs_rd_kbytestotal(char *page, char **start, off_t off,
740 int count, int *eof, void *data) { return 0; }
742 int lprocfs_rd_kbytesfree(char *page, char **start, off_t off,
743 int count, int *eof, void *data) { return 0; }
745 int lprocfs_rd_kbytesavail(char *page, char **start, off_t off,
746 int count, int *eof, void *data) { return 0; }
748 int lprocfs_rd_filestotal(char *page, char **start, off_t off,
749 int count, int *eof, void *data) { return 0; }
751 int lprocfs_rd_filesfree(char *page, char **start, off_t off,
752 int count, int *eof, void *data) { return 0; }
754 int lprocfs_rd_filegroups(char *page, char **start, off_t off,
755 int count, int *eof, void *data) { return 0; }
757 void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value) {}
759 void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value) {}
761 void lprocfs_oh_clear(struct obd_histogram *oh) {}
763 unsigned long lprocfs_oh_sum(struct obd_histogram *oh) { return 0; }
765 int lprocfs_counter_read(char *page, char **start, off_t off,
766 int count, int *eof, void *data) { return 0; }
768 int lprocfs_counter_write(struct file *file, const char *buffer,
769 unsigned long count, void *data) { return 0; }
772 __u64 lprocfs_stats_collector(struct lprocfs_stats *stats, int idx,
773 enum lprocfs_fields_flags field)
776 #define LPROCFS_ENTRY()
777 #define LPROCFS_EXIT()
778 #define LPROCFS_ENTRY_AND_CHECK(dp)
779 #define LPROC_SEQ_FOPS_RO(name)
780 #define LPROC_SEQ_FOPS(name)
783 #define target_print_req NULL
787 #endif /* LPROCFS_SNMP_H */