1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2002 Cluster File Systems, Inc.
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * Top level header file for LProc SNMP
22 * Author: Hariharan Thantry thantry@users.sourceforge.net
24 #ifndef _LPROCFS_SNMP_H
25 #define _LPROCFS_SNMP_H
27 #include <lustre/lustre_idl.h>
28 #if defined(__linux__)
29 #include <linux/lprocfs_status.h>
30 #elif defined(__APPLE__)
31 #include <darwin/lprocfs_status.h>
32 #elif defined(__WINNT__)
33 #include <winnt/lprocfs_status.h>
35 #error Unsupported operating system.
39 #if (defined(__KERNEL__) && defined(CONFIG_PROC_FS))
45 cfs_read_proc_t *read_fptr;
46 cfs_write_proc_t *write_fptr;
48 struct file_operations *fops;
51 struct lprocfs_static_vars {
52 struct lprocfs_vars *module_vars;
53 struct lprocfs_vars *obd_vars;
56 /* if we find more consumers this could be generalized */
57 #define OBD_HIST_MAX 32
58 struct obd_histogram {
60 unsigned long oh_buckets[OBD_HIST_MAX];
82 struct obd_histogram hist[BRW_LAST];
86 /* An lprocfs counter can be configured using the enum bit masks below.
88 * LPROCFS_CNTR_EXTERNALLOCK indicates that an external lock already
89 * protects this counter from concurrent updates. If not specified,
90 * lprocfs an internal per-counter lock variable. External locks are
91 * not used to protect counter increments, but are used to protect
92 * counter readout and resets.
94 * LPROCFS_CNTR_AVGMINMAX indicates a multi-valued counter samples,
95 * (i.e. counter can be incremented by more than "1"). When specified,
96 * the counter maintains min, max and sum in addition to a simple
97 * invocation count. This allows averages to be be computed.
98 * If not specified, the counter is an increment-by-1 counter.
99 * min, max, sum, etc. are not maintained.
101 * LPROCFS_CNTR_STDDEV indicates that the counter should track sum of
102 * squares (for multi-valued counter samples only). This allows
103 * external computation of standard deviation, but involves a 64-bit
104 * multiply per counter increment.
108 LPROCFS_CNTR_EXTERNALLOCK = 0x0001,
109 LPROCFS_CNTR_AVGMINMAX = 0x0002,
110 LPROCFS_CNTR_STDDEV = 0x0004,
112 /* counter data type */
113 LPROCFS_TYPE_REGS = 0x0100,
114 LPROCFS_TYPE_BYTES = 0x0200,
115 LPROCFS_TYPE_PAGES = 0x0400,
116 LPROCFS_TYPE_CYCLE = 0x0800,
119 struct lprocfs_atomic {
124 #define LC_MIN_INIT ((~(__u64)0) >> 1)
126 struct lprocfs_counter {
127 struct lprocfs_atomic lc_cntl; /* may need to move to per set */
128 unsigned int lc_config;
134 const char *lc_name; /* must be static */
135 const char *lc_units; /* must be static */
138 struct lprocfs_percpu {
139 struct lprocfs_counter lp_cntr[0];
142 #define LPROCFS_GET_NUM_CPU 0x0001
143 #define LPROCFS_GET_SMP_ID 0x0002
145 enum lprocfs_stats_flags {
146 LPROCFS_STATS_FLAG_PERCPU = 0x0000, /* per cpu counter */
147 LPROCFS_STATS_FLAG_NOPERCPU = 0x0001, /* stats have no percpu
148 * area and need locking */
151 enum lprocfs_fields_flags {
152 LPROCFS_FIELDS_FLAGS_CONFIG = 0x0001,
153 LPROCFS_FIELDS_FLAGS_SUM = 0x0002,
154 LPROCFS_FIELDS_FLAGS_MIN = 0x0003,
155 LPROCFS_FIELDS_FLAGS_MAX = 0x0004,
156 LPROCFS_FIELDS_FLAGS_AVG = 0x0005,
157 LPROCFS_FIELDS_FLAGS_SUMSQUARE = 0x0006,
158 LPROCFS_FIELDS_FLAGS_COUNT = 0x0007,
161 struct lprocfs_stats {
162 unsigned int ls_num; /* # of counters */
163 int ls_flags; /* See LPROCFS_STATS_FLAG_* */
164 spinlock_t ls_lock; /* Lock used only when there are
165 * no percpu stats areas */
166 struct lprocfs_percpu *ls_percpu[0];
169 static inline int opcode_offset(__u32 opc) {
170 if (opc < OST_LAST_OPC) {
172 return (opc - OST_FIRST_OPC);
173 } else if (opc < MDS_LAST_OPC) {
175 return (opc - MDS_FIRST_OPC +
176 (OST_LAST_OPC - OST_FIRST_OPC));
177 } else if (opc < LDLM_LAST_OPC) {
179 return (opc - LDLM_FIRST_OPC +
180 (MDS_LAST_OPC - MDS_FIRST_OPC) +
181 (OST_LAST_OPC - OST_FIRST_OPC));
182 } else if (opc < MGS_LAST_OPC) {
184 return (opc - MGS_FIRST_OPC +
185 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
186 (MDS_LAST_OPC - MDS_FIRST_OPC) +
187 (OST_LAST_OPC - OST_FIRST_OPC));
188 } else if (opc < OBD_LAST_OPC) {
190 return (opc - OBD_FIRST_OPC +
191 (MGS_LAST_OPC - MGS_FIRST_OPC) +
192 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
193 (MDS_LAST_OPC - MDS_FIRST_OPC) +
194 (OST_LAST_OPC - OST_FIRST_OPC));
195 } else if (opc < LLOG_LAST_OPC) {
197 return (opc - LLOG_FIRST_OPC +
198 (OBD_LAST_OPC - OBD_FIRST_OPC) +
199 (MGS_LAST_OPC - MGS_FIRST_OPC) +
200 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
201 (MDS_LAST_OPC - MDS_FIRST_OPC) +
202 (OST_LAST_OPC - OST_FIRST_OPC));
203 } else if (opc < FLD_LAST_OPC) {
205 return (opc - FLD_FIRST_OPC +
206 (LLOG_LAST_OPC - LLOG_FIRST_OPC) +
207 (OBD_LAST_OPC - OBD_FIRST_OPC) +
208 (MGS_LAST_OPC - MGS_FIRST_OPC) +
209 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
210 (MDS_LAST_OPC - MDS_FIRST_OPC) +
211 (OST_LAST_OPC - OST_FIRST_OPC));
212 } else if (opc < SEQ_LAST_OPC) {
214 return (opc - SEQ_FIRST_OPC +
215 (FLD_LAST_OPC - FLD_FIRST_OPC) +
216 (LLOG_LAST_OPC - LLOG_FIRST_OPC) +
217 (OBD_LAST_OPC - OBD_FIRST_OPC) +
218 (MGS_LAST_OPC - MGS_FIRST_OPC) +
219 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
220 (MDS_LAST_OPC - MDS_FIRST_OPC) +
221 (OST_LAST_OPC - OST_FIRST_OPC));
222 } else if (opc < SEC_LAST_OPC) {
224 return (opc - SEC_FIRST_OPC +
225 (SEQ_LAST_OPC - SEQ_FIRST_OPC) +
226 (FLD_LAST_OPC - FLD_FIRST_OPC) +
227 (LLOG_LAST_OPC - LLOG_FIRST_OPC) +
228 (OBD_LAST_OPC - OBD_FIRST_OPC) +
229 (MGS_LAST_OPC - MGS_FIRST_OPC) +
230 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
231 (MDS_LAST_OPC - MDS_FIRST_OPC) +
232 (OST_LAST_OPC - OST_FIRST_OPC));
239 #define LUSTRE_MAX_OPCODES ((LDLM_LAST_OPC - LDLM_FIRST_OPC) + \
240 (MDS_LAST_OPC - MDS_FIRST_OPC) + \
241 (OST_LAST_OPC - OST_FIRST_OPC) + \
242 (OBD_LAST_OPC - OBD_FIRST_OPC) + \
243 (FLD_LAST_OPC - FLD_FIRST_OPC) + \
244 (SEQ_LAST_OPC - SEQ_FIRST_OPC) + \
245 (MGS_LAST_OPC - MGS_FIRST_OPC) + \
246 (LLOG_LAST_OPC - LLOG_FIRST_OPC) + \
247 (SEC_LAST_OPC - SEC_FIRST_OPC))
249 #define EXTRA_MAX_OPCODES ((PTLRPC_LAST_CNTR - PTLRPC_FIRST_CNTR) + \
250 (EXTRA_LAST_OPC - EXTRA_FIRST_OPC))
253 PTLRPC_REQWAIT_CNTR = 0,
254 PTLRPC_REQQDEPTH_CNTR,
255 PTLRPC_REQACTIVE_CNTR,
257 PTLRPC_REQBUF_AVAIL_CNTR,
261 #define PTLRPC_FIRST_CNTR PTLRPC_REQWAIT_CNTR
264 LDLM_GLIMPSE_ENQUEUE = 0,
278 #define EXTRA_FIRST_OPC LDLM_GLIMPSE_ENQUEUE
280 extern cfs_proc_dir_entry_t *proc_lustre_root;
284 struct obd_histogram;
286 /* Days / hours / mins / seconds format */
290 static inline void s2dhms(struct dhms *ts, time_t secs)
292 ts->d = secs / 86400;
299 #define DHMS_FMT "%dd%dh%02dm%02ds"
300 #define DHMS_VARS(x) (x)->d, (x)->h, (x)->m, (x)->s
305 static inline int lprocfs_stats_lock(struct lprocfs_stats *stats, int type)
309 if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) {
310 if (type & LPROCFS_GET_NUM_CPU)
312 if (type & LPROCFS_GET_SMP_ID)
314 spin_lock(&stats->ls_lock);
316 if (type & LPROCFS_GET_NUM_CPU)
317 rc = num_possible_cpus();
318 if (type & LPROCFS_GET_SMP_ID)
319 rc = smp_processor_id();
324 static inline void lprocfs_stats_unlock(struct lprocfs_stats *stats)
326 if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU)
327 spin_unlock(&stats->ls_lock);
330 /* Two optimized LPROCFS counter increment functions are provided:
331 * lprocfs_counter_incr(cntr, value) - optimized for by-one counters
332 * lprocfs_counter_add(cntr) - use for multi-valued counters
333 * Counter data layout allows config flag, counter lock and the
334 * count itself to reside within a single cache line.
337 extern void lprocfs_counter_add(struct lprocfs_stats *stats, int idx,
339 extern void lprocfs_counter_sub(struct lprocfs_stats *stats, int idx,
342 #define lprocfs_counter_incr(stats, idx) \
343 lprocfs_counter_add(stats, idx, 1)
344 #define lprocfs_counter_decr(stats, idx) \
345 lprocfs_counter_sub(stats, idx, 1)
347 extern __s64 lprocfs_read_helper(struct lprocfs_counter *lc,
348 enum lprocfs_fields_flags field);
349 static inline __u64 lprocfs_stats_collector(struct lprocfs_stats *stats,
351 enum lprocfs_fields_flags field)
356 LASSERT(stats != NULL);
357 for (i = 0; i < num_possible_cpus(); i++)
358 ret += lprocfs_read_helper(&(stats->ls_percpu[i]->lp_cntr[idx]),
363 extern struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num,
364 enum lprocfs_stats_flags flags);
365 extern void lprocfs_clear_stats(struct lprocfs_stats *stats);
366 extern void lprocfs_free_stats(struct lprocfs_stats **stats);
367 extern void lprocfs_init_ops_stats(int num_private_stats,
368 struct lprocfs_stats *stats);
369 extern int lprocfs_alloc_obd_stats(struct obd_device *obddev,
370 unsigned int num_private_stats);
371 extern void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
372 unsigned conf, const char *name,
374 extern void lprocfs_free_obd_stats(struct obd_device *obddev);
377 extern int lprocfs_add_clear_entry(struct obd_device * obd,
378 cfs_proc_dir_entry_t *entry);
379 extern int lprocfs_exp_setup(struct obd_export *exp,
380 lnet_nid_t *peer_nid, int *newnid);
381 extern int lprocfs_exp_cleanup(struct obd_export *exp);
382 extern int lprocfs_add_simple(struct proc_dir_entry *root,
383 char *name, read_proc_t *read_proc,
384 write_proc_t *write_proc, void *data);
385 extern struct proc_dir_entry *lprocfs_add_symlink(const char *name,
386 struct proc_dir_entry *parent, const char *dest);
387 extern void lprocfs_free_per_client_stats(struct obd_device *obd);
388 extern int lprocfs_nid_stats_clear_write(struct file *file, const char *buffer,
389 unsigned long count, void *data);
390 extern int lprocfs_nid_stats_clear_read(char *page, char **start, off_t off,
391 int count, int *eof, void *data);
393 extern int lprocfs_register_stats(cfs_proc_dir_entry_t *root, const char *name,
394 struct lprocfs_stats *stats);
396 /* lprocfs_status.c */
397 extern int lprocfs_add_vars(cfs_proc_dir_entry_t *root,
398 struct lprocfs_vars *var,
401 extern cfs_proc_dir_entry_t *lprocfs_register(const char *name,
402 cfs_proc_dir_entry_t *parent,
403 struct lprocfs_vars *list,
406 extern void lprocfs_remove(cfs_proc_dir_entry_t **root);
407 extern void lprocfs_remove_proc_entry(const char *name,
408 struct proc_dir_entry *parent);
410 extern cfs_proc_dir_entry_t *lprocfs_srch(cfs_proc_dir_entry_t *root,
413 extern int lprocfs_obd_setup(struct obd_device *obd, struct lprocfs_vars *list);
414 extern int lprocfs_obd_cleanup(struct obd_device *obd);
415 extern int lprocfs_add_simple(struct proc_dir_entry *root, char *name,
416 read_proc_t *read_proc, write_proc_t *write_proc,
418 extern void lprocfs_free_per_client_stats(struct obd_device *obd);
419 extern struct file_operations lprocfs_evict_client_fops;
421 extern int lprocfs_seq_create(cfs_proc_dir_entry_t *parent, char *name,
422 mode_t mode, struct file_operations *seq_fops,
424 extern int lprocfs_obd_seq_create(struct obd_device *dev, char *name,
425 mode_t mode, struct file_operations *seq_fops,
428 /* Generic callbacks */
430 extern int lprocfs_rd_u64(char *page, char **start, off_t off,
431 int count, int *eof, void *data);
432 extern int lprocfs_rd_atomic(char *page, char **start, off_t off,
433 int count, int *eof, void *data);
434 extern int lprocfs_wr_atomic(struct file *file, const char *buffer,
435 unsigned long count, void *data);
436 extern int lprocfs_rd_uint(char *page, char **start, off_t off,
437 int count, int *eof, void *data);
438 extern int lprocfs_wr_uint(struct file *file, const char *buffer,
439 unsigned long count, void *data);
440 extern int lprocfs_rd_uuid(char *page, char **start, off_t off,
441 int count, int *eof, void *data);
442 extern int lprocfs_rd_name(char *page, char **start, off_t off,
443 int count, int *eof, void *data);
444 extern int lprocfs_rd_fstype(char *page, char **start, off_t off,
445 int count, int *eof, void *data);
446 extern int lprocfs_rd_server_uuid(char *page, char **start, off_t off,
447 int count, int *eof, void *data);
448 extern int lprocfs_rd_conn_uuid(char *page, char **start, off_t off,
449 int count, int *eof, void *data);
450 extern int lprocfs_rd_connect_flags(char *page, char **start, off_t off,
451 int count, int *eof, void *data);
452 extern int lprocfs_rd_num_exports(char *page, char **start, off_t off,
453 int count, int *eof, void *data);
454 extern int lprocfs_rd_numrefs(char *page, char **start, off_t off,
455 int count, int *eof, void *data);
456 struct adaptive_timeout;
457 extern int lprocfs_at_hist_helper(char *page, int count, int rc,
458 struct adaptive_timeout *at);
459 extern int lprocfs_rd_timeouts(char *page, char **start, off_t off,
460 int count, int *eof, void *data);
461 extern int lprocfs_wr_timeouts(struct file *file, const char *buffer,
462 unsigned long count, void *data);
463 extern int lprocfs_wr_evict_client(struct file *file, const char *buffer,
464 unsigned long count, void *data);
465 extern int lprocfs_wr_ping(struct file *file, const char *buffer,
466 unsigned long count, void *data);
469 extern int lprocfs_rd_blksize(char *page, char **start, off_t off,
470 int count, int *eof, void *data);
471 extern int lprocfs_rd_kbytestotal(char *page, char **start, off_t off,
472 int count, int *eof, void *data);
473 extern int lprocfs_rd_kbytesfree(char *page, char **start, off_t off,
474 int count, int *eof, void *data);
475 extern int lprocfs_rd_kbytesavail(char *page, char **start, off_t off,
476 int count, int *eof, void *data);
477 extern int lprocfs_rd_filestotal(char *page, char **start, off_t off,
478 int count, int *eof, void *data);
479 extern int lprocfs_rd_filesfree(char *page, char **start, off_t off,
480 int count, int *eof, void *data);
481 extern int lprocfs_rd_filegroups(char *page, char **start, off_t off,
482 int count, int *eof, void *data);
484 extern int lprocfs_write_helper(const char *buffer, unsigned long count,
486 extern int lprocfs_write_frac_helper(const char *buffer, unsigned long count,
488 extern int lprocfs_read_frac_helper(char *buffer, unsigned long count,
490 extern int lprocfs_write_u64_helper(const char *buffer, unsigned long count,
492 extern int lprocfs_write_frac_u64_helper(const char *buffer, unsigned long count,
493 __u64 *val, int mult);
494 void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value);
495 void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value);
496 void lprocfs_oh_clear(struct obd_histogram *oh);
497 unsigned long lprocfs_oh_sum(struct obd_histogram *oh);
499 /* lprocfs_status.c: counter read/write functions */
500 extern int lprocfs_counter_read(char *page, char **start, off_t off,
501 int count, int *eof, void *data);
502 extern int lprocfs_counter_write(struct file *file, const char *buffer,
503 unsigned long count, void *data);
505 /* lprocfs_status.c: recovery status */
506 int lprocfs_obd_rd_recovery_status(char *page, char **start, off_t off,
507 int count, int *eof, void *data);
509 extern int lprocfs_seq_release(struct inode *, struct file *);
511 /* in lprocfs_stat.c, to protect the private data for proc entries */
512 extern struct rw_semaphore _lprocfs_lock;
513 #define LPROCFS_ENTRY() do { \
514 down_read(&_lprocfs_lock); \
516 #define LPROCFS_EXIT() do { \
517 up_read(&_lprocfs_lock); \
519 #define LPROCFS_ENTRY_AND_CHECK(dp) do { \
520 typecheck(struct proc_dir_entry *, dp); \
522 if ((dp)->deleted) { \
528 /* You must use these macros when you want to refer to
529 * the import in a client obd_device for a lprocfs entry */
530 #define LPROCFS_CLIMP_CHECK(obd) do { \
531 typecheck(struct obd_device *, obd); \
532 down_read(&(obd)->u.cli.cl_sem); \
533 if ((obd)->u.cli.cl_import == NULL) { \
534 up_read(&(obd)->u.cli.cl_sem); \
538 #define LPROCFS_CLIMP_EXIT(obd) \
539 up_read(&(obd)->u.cli.cl_sem);
542 /* write the name##_seq_show function, call LPROC_SEQ_FOPS_RO for read-only
543 proc entries; otherwise, you will define name##_seq_write function also for
544 a read-write proc entry, and then call LPROC_SEQ_SEQ instead. Finally,
545 call lprocfs_obd_seq_create(obd, filename, 0444, &name#_fops, data); */
546 #define __LPROC_SEQ_FOPS(name, custom_seq_write) \
547 static int name##_seq_open(struct inode *inode, struct file *file) { \
548 struct proc_dir_entry *dp = PDE(inode); \
550 LPROCFS_ENTRY_AND_CHECK(dp); \
551 rc = single_open(file, name##_seq_show, dp->data); \
558 struct file_operations name##_fops = { \
559 .owner = THIS_MODULE, \
560 .open = name##_seq_open, \
562 .write = custom_seq_write, \
563 .llseek = seq_lseek, \
564 .release = lprocfs_seq_release, \
567 #define LPROC_SEQ_FOPS_RO(name) __LPROC_SEQ_FOPS(name, NULL)
568 #define LPROC_SEQ_FOPS(name) __LPROC_SEQ_FOPS(name, name##_seq_write)
571 struct ptlrpc_request;
572 extern void target_print_req(void *seq_file, struct ptlrpc_request *req);
574 /* lprocfs_status.c: read recovery max time bz13079 */
575 int lprocfs_obd_rd_recovery_maxtime(char *page, char **start, off_t off,
576 int count, int *eof, void *data);
578 /* lprocfs_status.c: write recovery max time bz13079 */
579 int lprocfs_obd_wr_recovery_maxtime(struct file *file, const char *buffer,
580 unsigned long count, void *data);
582 /* LPROCFS is not defined */
583 static inline void lprocfs_counter_add(struct lprocfs_stats *stats,
584 int index, long amount) { return; }
585 static inline void lprocfs_counter_incr(struct lprocfs_stats *stats,
586 int index) { return; }
587 static inline void lprocfs_counter_sub(struct lprocfs_stats *stats,
588 int index, long amount) { return; }
589 static inline void lprocfs_counter_init(struct lprocfs_stats *stats,
590 int index, unsigned conf,
591 const char *name, const char *units)
594 static inline __u64 lc_read_helper(struct lprocfs_counter *lc,
595 enum lprocfs_fields_flags field)
598 static inline struct lprocfs_stats* lprocfs_alloc_stats(unsigned int num,
599 enum lprocfs_stats_flags flags)
601 static inline void lprocfs_clear_stats(struct lprocfs_stats *stats)
603 static inline void lprocfs_free_stats(struct lprocfs_stats **stats)
605 static inline int lprocfs_register_stats(cfs_proc_dir_entry_t *root,
607 struct lprocfs_stats *stats)
609 static inline void lprocfs_init_ops_stats(int num_private_stats,
610 struct lprocfs_stats *stats)
612 static inline int lprocfs_alloc_obd_stats(struct obd_device *obddev,
613 unsigned int num_private_stats)
615 static inline void lprocfs_free_obd_stats(struct obd_device *obddev)
619 static inline int lprocfs_add_clear_entry(struct obd_export *exp)
621 static inline int lprocfs_exp_setup(struct obd_export *exp,
622 lnet_nid_t *peer_nid, int *newnid)
624 static inline int lprocfs_exp_cleanup(struct obd_export *exp)
626 static inline int lprocfs_add_simple(struct proc_dir_entry *root,
628 read_proc_t *read_proc,
629 write_proc_t *write_proc,
632 static inline struct proc_dir_entry *lprocfs_add_symlink(const char *name,
633 struct proc_dir_entry *parent, const char *dest)
635 static inline void lprocfs_free_per_client_stats(struct obd_device *obd)
638 int lprocfs_nid_stats_clear_write(struct file *file, const char *buffer,
639 unsigned long count, void *data)
642 int lprocfs_nid_stats_clear_read(char *page, char **start, off_t off,
643 int count, int *eof, void *data)
646 static inline cfs_proc_dir_entry_t *
647 lprocfs_register(const char *name, cfs_proc_dir_entry_t *parent,
648 struct lprocfs_vars *list, void *data) { return NULL; }
649 static inline int lprocfs_add_vars(cfs_proc_dir_entry_t *root,
650 struct lprocfs_vars *var,
651 void *data) { return 0; }
652 static inline void lprocfs_remove(cfs_proc_dir_entry_t **root) {};
653 static inline void lprocfs_remove_proc_entry(const char *name,
654 struct proc_dir_entry *parent) {};
655 static inline cfs_proc_dir_entry_t *lprocfs_srch(cfs_proc_dir_entry_t *head,
656 const char *name) {return 0;}
657 static inline int lprocfs_obd_setup(struct obd_device *dev,
658 struct lprocfs_vars *list) { return 0; }
659 static inline int lprocfs_obd_cleanup(struct obd_device *dev) { return 0; }
660 static inline int lprocfs_rd_u64(char *page, char **start, off_t off,
661 int count, int *eof, void *data) { return 0; }
662 static inline int lprocfs_rd_uuid(char *page, char **start, off_t off,
663 int count, int *eof, void *data) { return 0; }
664 static inline int lprocfs_rd_name(char *page, char **start, off_t off,
665 int count, int *eof, void *data) { return 0; }
666 static inline int lprocfs_rd_server_uuid(char *page, char **start, off_t off,
667 int count, int *eof, void *data)
669 static inline int lprocfs_rd_conn_uuid(char *page, char **start, off_t off,
670 int count, int *eof, void *data)
672 static inline int lprocfs_rd_connect_flags(char *page, char **start, off_t off,
673 int count, int *eof, void *data)
675 static inline int lprocfs_rd_num_exports(char *page, char **start, off_t off,
676 int count, int *eof, void *data)
678 static inline int lprocfs_rd_numrefs(char *page, char **start, off_t off,
679 int count, int *eof, void *data)
681 struct adaptive_timeout;
682 static inline int lprocfs_at_hist_helper(char *page, int count, int rc,
683 struct adaptive_timeout *at)
685 static inline int lprocfs_rd_timeouts(char *page, char **start, off_t off,
686 int count, int *eof, void *data)
688 static inline int lprocfs_wr_timeouts(struct file *file, const char *buffer,
689 unsigned long count, void *data)
691 static inline int lprocfs_wr_evict_client(struct file *file, const char *buffer,
692 unsigned long count, void *data)
694 static inline int lprocfs_wr_ping(struct file *file, const char *buffer,
695 unsigned long count, void *data)
701 int lprocfs_rd_blksize(char *page, char **start, off_t off,
702 int count, int *eof, void *data) { return 0; }
704 int lprocfs_rd_kbytestotal(char *page, char **start, off_t off,
705 int count, int *eof, void *data) { return 0; }
707 int lprocfs_rd_kbytesfree(char *page, char **start, off_t off,
708 int count, int *eof, void *data) { return 0; }
710 int lprocfs_rd_kbytesavail(char *page, char **start, off_t off,
711 int count, int *eof, void *data) { return 0; }
713 int lprocfs_rd_filestotal(char *page, char **start, off_t off,
714 int count, int *eof, void *data) { return 0; }
716 int lprocfs_rd_filesfree(char *page, char **start, off_t off,
717 int count, int *eof, void *data) { return 0; }
719 int lprocfs_rd_filegroups(char *page, char **start, off_t off,
720 int count, int *eof, void *data) { return 0; }
722 void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value) {}
724 void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value) {}
726 void lprocfs_oh_clear(struct obd_histogram *oh) {}
728 unsigned long lprocfs_oh_sum(struct obd_histogram *oh) { return 0; }
730 int lprocfs_counter_read(char *page, char **start, off_t off,
731 int count, int *eof, void *data) { return 0; }
733 int lprocfs_counter_write(struct file *file, const char *buffer,
734 unsigned long count, void *data) { return 0; }
737 __u64 lprocfs_stats_collector(struct lprocfs_stats *stats, int idx,
738 enum lprocfs_fields_flags field)
741 #define LPROCFS_ENTRY()
742 #define LPROCFS_EXIT()
743 #define LPROCFS_ENTRY_AND_CHECK(dp)
744 #define LPROC_SEQ_FOPS_RO(name)
745 #define LPROC_SEQ_FOPS(name)
748 #define target_print_req NULL
752 #endif /* LPROCFS_SNMP_H */