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;
69 struct lprocfs_static_vars {
70 struct lprocfs_vars *module_vars;
71 struct lprocfs_vars *obd_vars;
74 /* if we find more consumers this could be generalized */
75 #define OBD_HIST_MAX 32
76 struct obd_histogram {
78 unsigned long oh_buckets[OBD_HIST_MAX];
100 struct obd_histogram hist[BRW_LAST];
104 /* An lprocfs counter can be configured using the enum bit masks below.
106 * LPROCFS_CNTR_EXTERNALLOCK indicates that an external lock already
107 * protects this counter from concurrent updates. If not specified,
108 * lprocfs an internal per-counter lock variable. External locks are
109 * not used to protect counter increments, but are used to protect
110 * counter readout and resets.
112 * LPROCFS_CNTR_AVGMINMAX indicates a multi-valued counter samples,
113 * (i.e. counter can be incremented by more than "1"). When specified,
114 * the counter maintains min, max and sum in addition to a simple
115 * invocation count. This allows averages to be be computed.
116 * If not specified, the counter is an increment-by-1 counter.
117 * min, max, sum, etc. are not maintained.
119 * LPROCFS_CNTR_STDDEV indicates that the counter should track sum of
120 * squares (for multi-valued counter samples only). This allows
121 * external computation of standard deviation, but involves a 64-bit
122 * multiply per counter increment.
126 LPROCFS_CNTR_EXTERNALLOCK = 0x0001,
127 LPROCFS_CNTR_AVGMINMAX = 0x0002,
128 LPROCFS_CNTR_STDDEV = 0x0004,
130 /* counter data type */
131 LPROCFS_TYPE_REGS = 0x0100,
132 LPROCFS_TYPE_BYTES = 0x0200,
133 LPROCFS_TYPE_PAGES = 0x0400,
134 LPROCFS_TYPE_CYCLE = 0x0800,
137 struct lprocfs_atomic {
142 #define LC_MIN_INIT ((~(__u64)0) >> 1)
144 struct lprocfs_counter {
145 struct lprocfs_atomic lc_cntl; /* may need to move to per set */
146 unsigned int lc_config;
152 const char *lc_name; /* must be static */
153 const char *lc_units; /* must be static */
156 struct lprocfs_percpu {
157 struct lprocfs_counter lp_cntr[0];
160 #define LPROCFS_GET_NUM_CPU 0x0001
161 #define LPROCFS_GET_SMP_ID 0x0002
163 enum lprocfs_stats_flags {
164 LPROCFS_STATS_FLAG_PERCPU = 0x0000, /* per cpu counter */
165 LPROCFS_STATS_FLAG_NOPERCPU = 0x0001, /* stats have no percpu
166 * area and need locking */
169 enum lprocfs_fields_flags {
170 LPROCFS_FIELDS_FLAGS_CONFIG = 0x0001,
171 LPROCFS_FIELDS_FLAGS_SUM = 0x0002,
172 LPROCFS_FIELDS_FLAGS_MIN = 0x0003,
173 LPROCFS_FIELDS_FLAGS_MAX = 0x0004,
174 LPROCFS_FIELDS_FLAGS_AVG = 0x0005,
175 LPROCFS_FIELDS_FLAGS_SUMSQUARE = 0x0006,
176 LPROCFS_FIELDS_FLAGS_COUNT = 0x0007,
179 struct lprocfs_stats {
180 unsigned int ls_num; /* # of counters */
181 int ls_flags; /* See LPROCFS_STATS_FLAG_* */
182 spinlock_t ls_lock; /* Lock used only when there are
183 * no percpu stats areas */
184 struct lprocfs_percpu *ls_percpu[0];
187 static inline int opcode_offset(__u32 opc) {
188 if (opc < OST_LAST_OPC) {
190 return (opc - OST_FIRST_OPC);
191 } else if (opc < MDS_LAST_OPC) {
193 return (opc - MDS_FIRST_OPC +
194 (OST_LAST_OPC - OST_FIRST_OPC));
195 } else if (opc < LDLM_LAST_OPC) {
197 return (opc - LDLM_FIRST_OPC +
198 (MDS_LAST_OPC - MDS_FIRST_OPC) +
199 (OST_LAST_OPC - OST_FIRST_OPC));
200 } else if (opc < MGS_LAST_OPC) {
202 return (opc - MGS_FIRST_OPC +
203 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
204 (MDS_LAST_OPC - MDS_FIRST_OPC) +
205 (OST_LAST_OPC - OST_FIRST_OPC));
206 } else if (opc < OBD_LAST_OPC) {
208 return (opc - OBD_FIRST_OPC +
209 (MGS_LAST_OPC - MGS_FIRST_OPC) +
210 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
211 (MDS_LAST_OPC - MDS_FIRST_OPC) +
212 (OST_LAST_OPC - OST_FIRST_OPC));
213 } else if (opc < LLOG_LAST_OPC) {
215 return (opc - LLOG_FIRST_OPC +
216 (OBD_LAST_OPC - OBD_FIRST_OPC) +
217 (MGS_LAST_OPC - MGS_FIRST_OPC) +
218 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
219 (MDS_LAST_OPC - MDS_FIRST_OPC) +
220 (OST_LAST_OPC - OST_FIRST_OPC));
221 } else if (opc < FLD_LAST_OPC) {
223 return (opc - FLD_FIRST_OPC +
224 (LLOG_LAST_OPC - LLOG_FIRST_OPC) +
225 (OBD_LAST_OPC - OBD_FIRST_OPC) +
226 (MGS_LAST_OPC - MGS_FIRST_OPC) +
227 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
228 (MDS_LAST_OPC - MDS_FIRST_OPC) +
229 (OST_LAST_OPC - OST_FIRST_OPC));
230 } else if (opc < SEQ_LAST_OPC) {
232 return (opc - SEQ_FIRST_OPC +
233 (FLD_LAST_OPC - FLD_FIRST_OPC) +
234 (LLOG_LAST_OPC - LLOG_FIRST_OPC) +
235 (OBD_LAST_OPC - OBD_FIRST_OPC) +
236 (MGS_LAST_OPC - MGS_FIRST_OPC) +
237 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
238 (MDS_LAST_OPC - MDS_FIRST_OPC) +
239 (OST_LAST_OPC - OST_FIRST_OPC));
240 } else if (opc < SEC_LAST_OPC) {
242 return (opc - SEC_FIRST_OPC +
243 (SEQ_LAST_OPC - SEQ_FIRST_OPC) +
244 (FLD_LAST_OPC - FLD_FIRST_OPC) +
245 (LLOG_LAST_OPC - LLOG_FIRST_OPC) +
246 (OBD_LAST_OPC - OBD_FIRST_OPC) +
247 (MGS_LAST_OPC - MGS_FIRST_OPC) +
248 (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
249 (MDS_LAST_OPC - MDS_FIRST_OPC) +
250 (OST_LAST_OPC - OST_FIRST_OPC));
257 #define LUSTRE_MAX_OPCODES ((LDLM_LAST_OPC - LDLM_FIRST_OPC) + \
258 (MDS_LAST_OPC - MDS_FIRST_OPC) + \
259 (OST_LAST_OPC - OST_FIRST_OPC) + \
260 (OBD_LAST_OPC - OBD_FIRST_OPC) + \
261 (FLD_LAST_OPC - FLD_FIRST_OPC) + \
262 (SEQ_LAST_OPC - SEQ_FIRST_OPC) + \
263 (MGS_LAST_OPC - MGS_FIRST_OPC) + \
264 (LLOG_LAST_OPC - LLOG_FIRST_OPC) + \
265 (SEC_LAST_OPC - SEC_FIRST_OPC))
267 #define EXTRA_MAX_OPCODES ((PTLRPC_LAST_CNTR - PTLRPC_FIRST_CNTR) + \
268 (EXTRA_LAST_OPC - EXTRA_FIRST_OPC))
271 PTLRPC_REQWAIT_CNTR = 0,
272 PTLRPC_REQQDEPTH_CNTR,
273 PTLRPC_REQACTIVE_CNTR,
275 PTLRPC_REQBUF_AVAIL_CNTR,
279 #define PTLRPC_FIRST_CNTR PTLRPC_REQWAIT_CNTR
282 LDLM_GLIMPSE_ENQUEUE = 0,
298 #define EXTRA_FIRST_OPC LDLM_GLIMPSE_ENQUEUE
300 extern cfs_proc_dir_entry_t *proc_lustre_root;
304 struct obd_histogram;
306 /* Days / hours / mins / seconds format */
310 static inline void s2dhms(struct dhms *ts, time_t secs)
312 ts->d = secs / 86400;
319 #define DHMS_FMT "%dd%dh%02dm%02ds"
320 #define DHMS_VARS(x) (x)->d, (x)->h, (x)->m, (x)->s
325 static inline int lprocfs_stats_lock(struct lprocfs_stats *stats, int type)
329 if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) {
330 if (type & LPROCFS_GET_NUM_CPU)
332 if (type & LPROCFS_GET_SMP_ID)
334 spin_lock(&stats->ls_lock);
336 if (type & LPROCFS_GET_NUM_CPU)
337 rc = num_possible_cpus();
338 if (type & LPROCFS_GET_SMP_ID)
339 rc = smp_processor_id();
344 static inline void lprocfs_stats_unlock(struct lprocfs_stats *stats)
346 if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU)
347 spin_unlock(&stats->ls_lock);
350 /* Two optimized LPROCFS counter increment functions are provided:
351 * lprocfs_counter_incr(cntr, value) - optimized for by-one counters
352 * lprocfs_counter_add(cntr) - use for multi-valued counters
353 * Counter data layout allows config flag, counter lock and the
354 * count itself to reside within a single cache line.
357 extern void lprocfs_counter_add(struct lprocfs_stats *stats, int idx,
359 extern void lprocfs_counter_sub(struct lprocfs_stats *stats, int idx,
362 #define lprocfs_counter_incr(stats, idx) \
363 lprocfs_counter_add(stats, idx, 1)
364 #define lprocfs_counter_decr(stats, idx) \
365 lprocfs_counter_sub(stats, idx, 1)
367 extern __s64 lprocfs_read_helper(struct lprocfs_counter *lc,
368 enum lprocfs_fields_flags field);
369 static inline __u64 lprocfs_stats_collector(struct lprocfs_stats *stats,
371 enum lprocfs_fields_flags field)
376 LASSERT(stats != NULL);
377 for (i = 0; i < num_possible_cpus(); i++)
378 ret += lprocfs_read_helper(&(stats->ls_percpu[i]->lp_cntr[idx]),
383 extern struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num,
384 enum lprocfs_stats_flags flags);
385 extern void lprocfs_clear_stats(struct lprocfs_stats *stats);
386 extern void lprocfs_free_stats(struct lprocfs_stats **stats);
387 extern void lprocfs_init_ops_stats(int num_private_stats,
388 struct lprocfs_stats *stats);
389 extern int lprocfs_alloc_obd_stats(struct obd_device *obddev,
390 unsigned int num_private_stats);
391 extern void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
392 unsigned conf, const char *name,
394 extern void lprocfs_free_obd_stats(struct obd_device *obddev);
397 extern int lprocfs_add_clear_entry(struct obd_device * obd,
398 cfs_proc_dir_entry_t *entry);
399 extern int lprocfs_exp_setup(struct obd_export *exp,
400 lnet_nid_t *peer_nid, int *newnid);
401 extern int lprocfs_exp_cleanup(struct obd_export *exp);
402 extern int lprocfs_add_simple(struct proc_dir_entry *root,
403 char *name, cfs_read_proc_t *read_proc,
404 cfs_write_proc_t *write_proc, void *data);
405 extern struct proc_dir_entry *lprocfs_add_symlink(const char *name,
406 struct proc_dir_entry *parent, const char *dest);
407 extern void lprocfs_free_per_client_stats(struct obd_device *obd);
408 extern int lprocfs_nid_stats_clear_write(struct file *file, const char *buffer,
409 unsigned long count, void *data);
410 extern int lprocfs_nid_stats_clear_read(char *page, char **start, off_t off,
411 int count, int *eof, void *data);
413 extern int lprocfs_register_stats(cfs_proc_dir_entry_t *root, const char *name,
414 struct lprocfs_stats *stats);
416 /* lprocfs_status.c */
417 extern int lprocfs_add_vars(cfs_proc_dir_entry_t *root,
418 struct lprocfs_vars *var,
421 extern cfs_proc_dir_entry_t *lprocfs_register(const char *name,
422 cfs_proc_dir_entry_t *parent,
423 struct lprocfs_vars *list,
426 extern void lprocfs_remove(cfs_proc_dir_entry_t **root);
427 extern void lprocfs_remove_proc_entry(const char *name,
428 struct proc_dir_entry *parent);
430 extern cfs_proc_dir_entry_t *lprocfs_srch(cfs_proc_dir_entry_t *root,
433 extern int lprocfs_obd_setup(struct obd_device *obd, struct lprocfs_vars *list);
434 extern int lprocfs_obd_cleanup(struct obd_device *obd);
435 extern int lprocfs_add_simple(struct proc_dir_entry *root, char *name,
436 cfs_read_proc_t *read_proc,
437 cfs_write_proc_t *write_proc,
439 extern void lprocfs_free_per_client_stats(struct obd_device *obd);
440 extern struct file_operations lprocfs_evict_client_fops;
442 extern int lprocfs_seq_create(cfs_proc_dir_entry_t *parent, char *name,
443 mode_t mode, struct file_operations *seq_fops,
445 extern int lprocfs_obd_seq_create(struct obd_device *dev, char *name,
446 mode_t mode, struct file_operations *seq_fops,
449 /* Generic callbacks */
451 extern int lprocfs_rd_u64(char *page, char **start, off_t off,
452 int count, int *eof, void *data);
453 extern int lprocfs_rd_atomic(char *page, char **start, off_t off,
454 int count, int *eof, void *data);
455 extern int lprocfs_wr_atomic(struct file *file, const char *buffer,
456 unsigned long count, void *data);
457 extern int lprocfs_rd_uint(char *page, char **start, off_t off,
458 int count, int *eof, void *data);
459 extern int lprocfs_wr_uint(struct file *file, const char *buffer,
460 unsigned long count, void *data);
461 extern int lprocfs_rd_uuid(char *page, char **start, off_t off,
462 int count, int *eof, void *data);
463 extern int lprocfs_rd_name(char *page, char **start, off_t off,
464 int count, int *eof, void *data);
465 extern int lprocfs_rd_fstype(char *page, char **start, off_t off,
466 int count, int *eof, void *data);
467 extern int lprocfs_rd_server_uuid(char *page, char **start, off_t off,
468 int count, int *eof, void *data);
469 extern int lprocfs_rd_conn_uuid(char *page, char **start, off_t off,
470 int count, int *eof, void *data);
471 extern int lprocfs_rd_connect_flags(char *page, char **start, off_t off,
472 int count, int *eof, void *data);
473 extern int lprocfs_rd_num_exports(char *page, char **start, off_t off,
474 int count, int *eof, void *data);
475 extern int lprocfs_rd_numrefs(char *page, char **start, off_t off,
476 int count, int *eof, void *data);
477 struct adaptive_timeout;
478 extern int lprocfs_at_hist_helper(char *page, int count, int rc,
479 struct adaptive_timeout *at);
480 extern int lprocfs_rd_timeouts(char *page, char **start, off_t off,
481 int count, int *eof, void *data);
482 extern int lprocfs_wr_timeouts(struct file *file, const char *buffer,
483 unsigned long count, void *data);
484 extern int lprocfs_wr_evict_client(struct file *file, const char *buffer,
485 unsigned long count, void *data);
486 extern int lprocfs_wr_ping(struct file *file, const char *buffer,
487 unsigned long count, void *data);
490 extern int lprocfs_rd_blksize(char *page, char **start, off_t off,
491 int count, int *eof, void *data);
492 extern int lprocfs_rd_kbytestotal(char *page, char **start, off_t off,
493 int count, int *eof, void *data);
494 extern int lprocfs_rd_kbytesfree(char *page, char **start, off_t off,
495 int count, int *eof, void *data);
496 extern int lprocfs_rd_kbytesavail(char *page, char **start, off_t off,
497 int count, int *eof, void *data);
498 extern int lprocfs_rd_filestotal(char *page, char **start, off_t off,
499 int count, int *eof, void *data);
500 extern int lprocfs_rd_filesfree(char *page, char **start, off_t off,
501 int count, int *eof, void *data);
502 extern int lprocfs_rd_filegroups(char *page, char **start, off_t off,
503 int count, int *eof, void *data);
505 extern int lprocfs_write_helper(const char *buffer, unsigned long count,
507 extern int lprocfs_write_frac_helper(const char *buffer, unsigned long count,
509 extern int lprocfs_read_frac_helper(char *buffer, unsigned long count,
511 extern int lprocfs_write_u64_helper(const char *buffer, unsigned long count,
513 extern int lprocfs_write_frac_u64_helper(const char *buffer, unsigned long count,
514 __u64 *val, int mult);
515 void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value);
516 void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value);
517 void lprocfs_oh_clear(struct obd_histogram *oh);
518 unsigned long lprocfs_oh_sum(struct obd_histogram *oh);
520 /* lprocfs_status.c: counter read/write functions */
521 extern int lprocfs_counter_read(char *page, char **start, off_t off,
522 int count, int *eof, void *data);
523 extern int lprocfs_counter_write(struct file *file, const char *buffer,
524 unsigned long count, void *data);
526 /* lprocfs_status.c: recovery status */
527 int lprocfs_obd_rd_recovery_status(char *page, char **start, off_t off,
528 int count, int *eof, void *data);
530 extern int lprocfs_seq_release(struct inode *, struct file *);
532 /* in lprocfs_stat.c, to protect the private data for proc entries */
533 extern struct rw_semaphore _lprocfs_lock;
534 #define LPROCFS_ENTRY() do { \
535 down_read(&_lprocfs_lock); \
537 #define LPROCFS_EXIT() do { \
538 up_read(&_lprocfs_lock); \
540 #define LPROCFS_ENTRY_AND_CHECK(dp) do { \
541 typecheck(struct proc_dir_entry *, dp); \
543 if ((dp)->deleted) { \
548 #define LPROCFS_WRITE_ENTRY() do { \
549 down_write(&_lprocfs_lock); \
551 #define LPROCFS_WRITE_EXIT() do { \
552 up_write(&_lprocfs_lock); \
555 /* You must use these macros when you want to refer to
556 * the import in a client obd_device for a lprocfs entry */
557 #define LPROCFS_CLIMP_CHECK(obd) do { \
558 typecheck(struct obd_device *, obd); \
559 down_read(&(obd)->u.cli.cl_sem); \
560 if ((obd)->u.cli.cl_import == NULL) { \
561 up_read(&(obd)->u.cli.cl_sem); \
565 #define LPROCFS_CLIMP_EXIT(obd) \
566 up_read(&(obd)->u.cli.cl_sem);
569 /* write the name##_seq_show function, call LPROC_SEQ_FOPS_RO for read-only
570 proc entries; otherwise, you will define name##_seq_write function also for
571 a read-write proc entry, and then call LPROC_SEQ_SEQ instead. Finally,
572 call lprocfs_obd_seq_create(obd, filename, 0444, &name#_fops, data); */
573 #define __LPROC_SEQ_FOPS(name, custom_seq_write) \
574 static int name##_seq_open(struct inode *inode, struct file *file) { \
575 struct proc_dir_entry *dp = PDE(inode); \
577 LPROCFS_ENTRY_AND_CHECK(dp); \
578 rc = single_open(file, name##_seq_show, dp->data); \
585 struct file_operations name##_fops = { \
586 .owner = THIS_MODULE, \
587 .open = name##_seq_open, \
589 .write = custom_seq_write, \
590 .llseek = seq_lseek, \
591 .release = lprocfs_seq_release, \
594 #define LPROC_SEQ_FOPS_RO(name) __LPROC_SEQ_FOPS(name, NULL)
595 #define LPROC_SEQ_FOPS(name) __LPROC_SEQ_FOPS(name, name##_seq_write)
598 struct ptlrpc_request;
599 extern void target_print_req(void *seq_file, struct ptlrpc_request *req);
601 /* lprocfs_status.c: read recovery max time bz13079 */
602 int lprocfs_obd_rd_recovery_maxtime(char *page, char **start, off_t off,
603 int count, int *eof, void *data);
605 /* lprocfs_status.c: write recovery max time bz13079 */
606 int lprocfs_obd_wr_recovery_maxtime(struct file *file, const char *buffer,
607 unsigned long count, void *data);
609 /* LPROCFS is not defined */
610 static inline void lprocfs_counter_add(struct lprocfs_stats *stats,
611 int index, long amount) { return; }
612 static inline void lprocfs_counter_incr(struct lprocfs_stats *stats,
613 int index) { return; }
614 static inline void lprocfs_counter_sub(struct lprocfs_stats *stats,
615 int index, long amount) { return; }
616 static inline void lprocfs_counter_init(struct lprocfs_stats *stats,
617 int index, unsigned conf,
618 const char *name, const char *units)
621 static inline __u64 lc_read_helper(struct lprocfs_counter *lc,
622 enum lprocfs_fields_flags field)
625 static inline struct lprocfs_stats* lprocfs_alloc_stats(unsigned int num,
626 enum lprocfs_stats_flags flags)
628 static inline void lprocfs_clear_stats(struct lprocfs_stats *stats)
630 static inline void lprocfs_free_stats(struct lprocfs_stats **stats)
632 static inline int lprocfs_register_stats(cfs_proc_dir_entry_t *root,
634 struct lprocfs_stats *stats)
636 static inline void lprocfs_init_ops_stats(int num_private_stats,
637 struct lprocfs_stats *stats)
639 static inline int lprocfs_alloc_obd_stats(struct obd_device *obddev,
640 unsigned int num_private_stats)
642 static inline void lprocfs_free_obd_stats(struct obd_device *obddev)
646 static inline int lprocfs_add_clear_entry(struct obd_export *exp)
648 static inline int lprocfs_exp_setup(struct obd_export *exp,
649 lnet_nid_t *peer_nid, int *newnid)
651 static inline int lprocfs_exp_cleanup(struct obd_export *exp)
653 static inline int lprocfs_add_simple(struct proc_dir_entry *root,
655 cfs_read_proc_t *read_proc,
656 cfs_write_proc_t *write_proc,
659 static inline struct proc_dir_entry *lprocfs_add_symlink(const char *name,
660 struct proc_dir_entry *parent, const char *dest)
662 static inline void lprocfs_free_per_client_stats(struct obd_device *obd)
665 int lprocfs_nid_stats_clear_write(struct file *file, const char *buffer,
666 unsigned long count, void *data)
669 int lprocfs_nid_stats_clear_read(char *page, char **start, off_t off,
670 int count, int *eof, void *data)
673 static inline cfs_proc_dir_entry_t *
674 lprocfs_register(const char *name, cfs_proc_dir_entry_t *parent,
675 struct lprocfs_vars *list, void *data) { return NULL; }
676 static inline int lprocfs_add_vars(cfs_proc_dir_entry_t *root,
677 struct lprocfs_vars *var,
678 void *data) { return 0; }
679 static inline void lprocfs_remove(cfs_proc_dir_entry_t **root) {};
680 static inline void lprocfs_remove_proc_entry(const char *name,
681 struct proc_dir_entry *parent) {};
682 static inline cfs_proc_dir_entry_t *lprocfs_srch(cfs_proc_dir_entry_t *head,
683 const char *name) {return 0;}
684 static inline int lprocfs_obd_setup(struct obd_device *dev,
685 struct lprocfs_vars *list) { return 0; }
686 static inline int lprocfs_obd_cleanup(struct obd_device *dev) { return 0; }
687 static inline int lprocfs_rd_u64(char *page, char **start, off_t off,
688 int count, int *eof, void *data) { return 0; }
689 static inline int lprocfs_rd_uuid(char *page, char **start, off_t off,
690 int count, int *eof, void *data) { return 0; }
691 static inline int lprocfs_rd_name(char *page, char **start, off_t off,
692 int count, int *eof, void *data) { return 0; }
693 static inline int lprocfs_rd_server_uuid(char *page, char **start, off_t off,
694 int count, int *eof, void *data)
696 static inline int lprocfs_rd_conn_uuid(char *page, char **start, off_t off,
697 int count, int *eof, void *data)
699 static inline int lprocfs_rd_connect_flags(char *page, char **start, off_t off,
700 int count, int *eof, void *data)
702 static inline int lprocfs_rd_num_exports(char *page, char **start, off_t off,
703 int count, int *eof, void *data)
705 static inline int lprocfs_rd_numrefs(char *page, char **start, off_t off,
706 int count, int *eof, void *data)
708 struct adaptive_timeout;
709 static inline int lprocfs_at_hist_helper(char *page, int count, int rc,
710 struct adaptive_timeout *at)
712 static inline int lprocfs_rd_timeouts(char *page, char **start, off_t off,
713 int count, int *eof, void *data)
715 static inline int lprocfs_wr_timeouts(struct file *file, const char *buffer,
716 unsigned long count, void *data)
718 static inline int lprocfs_wr_evict_client(struct file *file, const char *buffer,
719 unsigned long count, void *data)
721 static inline int lprocfs_wr_ping(struct file *file, const char *buffer,
722 unsigned long count, void *data)
728 int lprocfs_rd_blksize(char *page, char **start, off_t off,
729 int count, int *eof, void *data) { return 0; }
731 int lprocfs_rd_kbytestotal(char *page, char **start, off_t off,
732 int count, int *eof, void *data) { return 0; }
734 int lprocfs_rd_kbytesfree(char *page, char **start, off_t off,
735 int count, int *eof, void *data) { return 0; }
737 int lprocfs_rd_kbytesavail(char *page, char **start, off_t off,
738 int count, int *eof, void *data) { return 0; }
740 int lprocfs_rd_filestotal(char *page, char **start, off_t off,
741 int count, int *eof, void *data) { return 0; }
743 int lprocfs_rd_filesfree(char *page, char **start, off_t off,
744 int count, int *eof, void *data) { return 0; }
746 int lprocfs_rd_filegroups(char *page, char **start, off_t off,
747 int count, int *eof, void *data) { return 0; }
749 void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value) {}
751 void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value) {}
753 void lprocfs_oh_clear(struct obd_histogram *oh) {}
755 unsigned long lprocfs_oh_sum(struct obd_histogram *oh) { return 0; }
757 int lprocfs_counter_read(char *page, char **start, off_t off,
758 int count, int *eof, void *data) { return 0; }
760 int lprocfs_counter_write(struct file *file, const char *buffer,
761 unsigned long count, void *data) { return 0; }
764 __u64 lprocfs_stats_collector(struct lprocfs_stats *stats, int idx,
765 enum lprocfs_fields_flags field)
768 #define LPROCFS_ENTRY()
769 #define LPROCFS_EXIT()
770 #define LPROCFS_ENTRY_AND_CHECK(dp)
771 #define LPROC_SEQ_FOPS_RO(name)
772 #define LPROC_SEQ_FOPS(name)
775 #define target_print_req NULL
779 #endif /* LPROCFS_SNMP_H */