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.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/include/lprocfs_status.h
34 * Top level header file for LProc
36 * Author: Hariharan Thantry thantry@users.sourceforge.net
38 #ifndef _LPROCFS_STATUS_H
39 #define _LPROCFS_STATUS_H
42 #include <linux/proc_fs.h>
43 #include <linux/debugfs.h>
44 #include <linux/rwsem.h>
45 #include <linux/spinlock.h>
46 #include <linux/seq_file.h>
48 #include <libcfs/libcfs_time.h>
49 #include <libcfs/linux/linux-misc.h>
50 #include <uapi/linux/lustre/lustre_idl.h>
54 const struct file_operations *fops;
62 /* if we find more consumers this could be generalized */
63 #define OBD_HIST_MAX 32
64 struct obd_histogram {
66 unsigned long oh_buckets[OBD_HIST_MAX];
88 struct obd_histogram hist[BRW_LAST];
92 RENAME_SAMEDIR_SIZE = 0,
93 RENAME_CROSSDIR_SRC_SIZE,
94 RENAME_CROSSDIR_TGT_SIZE,
99 struct obd_histogram hist[RENAME_LAST];
102 /* An lprocfs counter can be configured using the enum bit masks below.
104 * LPROCFS_CNTR_EXTERNALLOCK indicates that an external lock already
105 * protects this counter from concurrent updates. If not specified,
106 * lprocfs an internal per-counter lock variable. External locks are
107 * not used to protect counter increments, but are used to protect
108 * counter readout and resets.
110 * LPROCFS_CNTR_AVGMINMAX indicates a multi-valued counter samples,
111 * (i.e. counter can be incremented by more than "1"). When specified,
112 * the counter maintains min, max and sum in addition to a simple
113 * invocation count. This allows averages to be be computed.
114 * If not specified, the counter is an increment-by-1 counter.
115 * min, max, sum, etc. are not maintained.
117 * LPROCFS_CNTR_STDDEV indicates that the counter should track sum of
118 * squares (for multi-valued counter samples only). This allows
119 * external computation of standard deviation, but involves a 64-bit
120 * multiply per counter increment.
124 LPROCFS_CNTR_EXTERNALLOCK = 0x0001,
125 LPROCFS_CNTR_AVGMINMAX = 0x0002,
126 LPROCFS_CNTR_STDDEV = 0x0004,
128 /* counter data type */
129 LPROCFS_TYPE_REGS = 0x0100,
130 LPROCFS_TYPE_BYTES = 0x0200,
131 LPROCFS_TYPE_PAGES = 0x0400,
132 LPROCFS_TYPE_CYCLE = 0x0800,
135 #define LC_MIN_INIT ((~(__u64)0) >> 1)
137 struct lprocfs_counter_header {
138 unsigned int lc_config;
139 const char *lc_name; /* must be static */
140 const char *lc_units; /* must be static */
143 struct lprocfs_counter {
149 * Every counter has lc_array_sum[0], while lc_array_sum[1] is only
150 * for irq context counter, i.e. stats with
151 * LPROCFS_STATS_FLAG_IRQ_SAFE flag, its counter need
154 __s64 lc_array_sum[1];
156 #define lc_sum lc_array_sum[0]
157 #define lc_sum_irq lc_array_sum[1]
159 struct lprocfs_percpu {
160 struct lprocfs_counter lp_cntr[0];
163 enum lprocfs_stats_lock_ops {
164 LPROCFS_GET_NUM_CPU = 0x0001, /* number allocated per-CPU stats */
165 LPROCFS_GET_SMP_ID = 0x0002, /* current stat to be updated */
168 enum lprocfs_stats_flags {
169 LPROCFS_STATS_FLAG_NONE = 0x0000, /* per cpu counter */
170 LPROCFS_STATS_FLAG_NOPERCPU = 0x0001, /* stats have no percpu
171 * area and need locking */
172 LPROCFS_STATS_FLAG_IRQ_SAFE = 0x0002, /* alloc need irq safe */
175 enum lprocfs_fields_flags {
176 LPROCFS_FIELDS_FLAGS_CONFIG = 0x0001,
177 LPROCFS_FIELDS_FLAGS_SUM = 0x0002,
178 LPROCFS_FIELDS_FLAGS_MIN = 0x0003,
179 LPROCFS_FIELDS_FLAGS_MAX = 0x0004,
180 LPROCFS_FIELDS_FLAGS_AVG = 0x0005,
181 LPROCFS_FIELDS_FLAGS_SUMSQUARE = 0x0006,
182 LPROCFS_FIELDS_FLAGS_COUNT = 0x0007,
185 struct lprocfs_stats {
187 unsigned short ls_num;
188 /* 1 + the biggest cpu # whose ls_percpu slot has been allocated */
189 unsigned short ls_biggest_alloc_num;
190 enum lprocfs_stats_flags ls_flags;
191 /* Lock used when there are no percpu stats areas; For percpu stats,
192 * it is used to protect ls_biggest_alloc_num change */
195 /* has ls_num of counter headers */
196 struct lprocfs_counter_header *ls_cnt_header;
197 struct lprocfs_percpu *ls_percpu[0];
200 #define OPC_RANGE(seg) (seg ## _LAST_OPC - seg ## _FIRST_OPC)
202 /* Pack all opcodes down into a single monotonically increasing index */
203 static inline int opcode_offset(__u32 opc) {
204 if (opc < OST_LAST_OPC) {
206 return (opc - OST_FIRST_OPC);
207 } else if (opc < MDS_LAST_OPC) {
209 return (opc - MDS_FIRST_OPC +
211 } else if (opc < LDLM_LAST_OPC) {
213 return (opc - LDLM_FIRST_OPC +
216 } else if (opc < MGS_LAST_OPC) {
218 return (opc - MGS_FIRST_OPC +
222 } else if (opc < OBD_LAST_OPC) {
224 return (opc - OBD_FIRST_OPC +
229 } else if (opc < LLOG_LAST_OPC) {
231 return (opc - LLOG_FIRST_OPC +
237 } else if (opc < QUOTA_LAST_OPC) {
239 return (opc - QUOTA_FIRST_OPC +
246 } else if (opc < SEQ_LAST_OPC) {
248 return (opc - SEQ_FIRST_OPC +
256 } else if (opc < SEC_LAST_OPC) {
258 return (opc - SEC_FIRST_OPC +
267 } else if (opc < FLD_LAST_OPC) {
269 return (opc - FLD_FIRST_OPC +
279 } else if (opc < OUT_UPDATE_LAST_OPC) {
281 return (opc - OUT_UPDATE_FIRST_OPC +
292 } else if (opc < LFSCK_LAST_OPC) {
294 return (opc - LFSCK_FIRST_OPC +
295 OPC_RANGE(OUT_UPDATE) +
313 #define LUSTRE_MAX_OPCODES (OPC_RANGE(OST) + \
323 OPC_RANGE(OUT_UPDATE) + \
326 #define EXTRA_MAX_OPCODES ((PTLRPC_LAST_CNTR - PTLRPC_FIRST_CNTR) + \
330 PTLRPC_REQWAIT_CNTR = 0,
331 PTLRPC_REQQDEPTH_CNTR,
332 PTLRPC_REQACTIVE_CNTR,
334 PTLRPC_REQBUF_AVAIL_CNTR,
338 #define PTLRPC_FIRST_CNTR PTLRPC_REQWAIT_CNTR
340 enum lprocfs_extra_opc {
341 LDLM_GLIMPSE_ENQUEUE = 0,
359 #define EXTRA_FIRST_OPC LDLM_GLIMPSE_ENQUEUE
361 extern struct proc_dir_entry *proc_lustre_root;
362 extern struct dentry *debugfs_lustre_root;
363 extern struct kset *lustre_kset;
366 struct obd_histogram;
368 #define JOBSTATS_JOBID_VAR_MAX_LEN 20
369 #define JOBSTATS_DISABLE "disable"
370 #define JOBSTATS_PROCNAME_UID "procname_uid"
371 #define JOBSTATS_NODELOCAL "nodelocal"
373 typedef void (*cntr_init_callback)(struct lprocfs_stats *stats);
375 struct obd_job_stats {
376 struct cfs_hash *ojs_hash; /* hash of jobids */
377 struct list_head ojs_list; /* list of job_stat structs */
378 rwlock_t ojs_lock; /* protect ojs_list/js_list */
379 unsigned int ojs_cleanup_interval;/* seconds before expiry */
380 time64_t ojs_last_cleanup; /* previous cleanup time */
381 cntr_init_callback ojs_cntr_init_fn;/* lprocfs_stats initializer */
382 unsigned short ojs_cntr_num; /* number of stats in struct */
383 bool ojs_cleaning; /* currently expiring stats */
386 #ifdef CONFIG_PROC_FS
388 int lprocfs_stats_alloc_one(struct lprocfs_stats *stats,
390 int lprocfs_stats_lock(struct lprocfs_stats *stats,
391 enum lprocfs_stats_lock_ops opc,
392 unsigned long *flags);
393 void lprocfs_stats_unlock(struct lprocfs_stats *stats,
394 enum lprocfs_stats_lock_ops opc,
395 unsigned long *flags);
397 static inline unsigned int
398 lprocfs_stats_counter_size(struct lprocfs_stats *stats)
400 unsigned int percpusize;
402 percpusize = offsetof(struct lprocfs_percpu, lp_cntr[stats->ls_num]);
404 /* irq safe stats need lc_array_sum[1] */
405 if ((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
406 percpusize += stats->ls_num * sizeof(__s64);
408 if ((stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) == 0)
409 percpusize = L1_CACHE_ALIGN(percpusize);
414 static inline struct lprocfs_counter *
415 lprocfs_stats_counter_get(struct lprocfs_stats *stats, unsigned int cpuid,
418 struct lprocfs_counter *cntr;
420 cntr = &stats->ls_percpu[cpuid]->lp_cntr[index];
422 if ((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
423 cntr = (void *)cntr + index * sizeof(__s64);
428 /* Two optimized LPROCFS counter increment functions are provided:
429 * lprocfs_counter_incr(cntr, value) - optimized for by-one counters
430 * lprocfs_counter_add(cntr) - use for multi-valued counters
431 * Counter data layout allows config flag, counter lock and the
432 * count itself to reside within a single cache line.
435 extern void lprocfs_counter_add(struct lprocfs_stats *stats, int idx,
437 extern void lprocfs_counter_sub(struct lprocfs_stats *stats, int idx,
440 #define lprocfs_counter_incr(stats, idx) \
441 lprocfs_counter_add(stats, idx, 1)
442 #define lprocfs_counter_decr(stats, idx) \
443 lprocfs_counter_sub(stats, idx, 1)
445 extern __s64 lprocfs_read_helper(struct lprocfs_counter *lc,
446 struct lprocfs_counter_header *header,
447 enum lprocfs_stats_flags flags,
448 enum lprocfs_fields_flags field);
449 u64 lprocfs_stats_collector(struct lprocfs_stats *stats, int idx,
450 enum lprocfs_fields_flags field);
452 extern struct lprocfs_stats *
453 lprocfs_alloc_stats(unsigned int num, enum lprocfs_stats_flags flags);
454 extern void lprocfs_clear_stats(struct lprocfs_stats *stats);
455 extern void lprocfs_free_stats(struct lprocfs_stats **stats);
456 extern void lprocfs_init_ops_stats(int num_private_stats,
457 struct lprocfs_stats *stats);
458 extern void lprocfs_init_mps_stats(int num_private_stats,
459 struct lprocfs_stats *stats);
460 extern void lprocfs_init_ldlm_stats(struct lprocfs_stats *ldlm_stats);
461 extern int lprocfs_alloc_obd_stats(struct obd_device *obddev,
462 unsigned int num_private_stats);
463 extern int lprocfs_alloc_md_stats(struct obd_device *obddev,
464 unsigned int num_private_stats);
465 extern void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
466 unsigned conf, const char *name,
468 extern void lprocfs_free_obd_stats(struct obd_device *obddev);
469 extern void lprocfs_free_md_stats(struct obd_device *obddev);
472 extern int lprocfs_add_clear_entry(struct obd_device * obd,
473 struct proc_dir_entry *entry);
474 #ifdef HAVE_SERVER_SUPPORT
475 extern int lprocfs_exp_setup(struct obd_export *exp, lnet_nid_t *peer_nid);
476 extern int lprocfs_exp_cleanup(struct obd_export *exp);
478 static inline int lprocfs_exp_cleanup(struct obd_export *exp)
481 extern struct proc_dir_entry *
482 lprocfs_add_simple(struct proc_dir_entry *root, char *name,
483 void *data, const struct file_operations *fops);
484 extern struct proc_dir_entry *
485 lprocfs_add_symlink(const char *name, struct proc_dir_entry *parent,
486 const char *format, ...);
487 extern void lprocfs_free_per_client_stats(struct obd_device *obd);
488 #ifdef HAVE_SERVER_SUPPORT
490 lprocfs_nid_stats_clear_seq_write(struct file *file, const char __user *buffer,
491 size_t count, loff_t *off);
492 extern int lprocfs_nid_stats_clear_seq_show(struct seq_file *file, void *data);
494 extern int ldebugfs_register_stats(struct dentry *parent, const char *name,
495 struct lprocfs_stats *stats);
496 extern int lprocfs_register_stats(struct proc_dir_entry *root, const char *name,
497 struct lprocfs_stats *stats);
499 /* lprocfs_status.c */
500 extern int ldebugfs_add_vars(struct dentry *parent, struct lprocfs_vars *var,
502 extern int lprocfs_add_vars(struct proc_dir_entry *root,
503 struct lprocfs_vars *var, void *data);
505 extern struct dentry *ldebugfs_register(const char *name,
506 struct dentry *parent,
507 struct lprocfs_vars *list,
509 extern struct proc_dir_entry *
510 lprocfs_register(const char *name, struct proc_dir_entry *parent,
511 struct lprocfs_vars *list, void *data);
513 extern void ldebugfs_remove(struct dentry **entryp);
514 extern void lprocfs_remove(struct proc_dir_entry **root);
515 extern void lprocfs_remove_proc_entry(const char *name,
516 struct proc_dir_entry *parent);
517 #ifndef HAVE_REMOVE_PROC_SUBTREE
518 extern int remove_proc_subtree(const char *name,
519 struct proc_dir_entry *parent);
520 #define PDE_DATA(inode) (PDE(inode)->data)
522 static inline int LPROCFS_ENTRY_CHECK(struct inode *inode)
524 struct proc_dir_entry *dp = PDE(inode);
527 spin_lock(&(dp)->pde_unload_lock);
528 if (dp->proc_fops == NULL)
530 spin_unlock(&(dp)->pde_unload_lock);
536 static inline int LPROCFS_ENTRY_CHECK(struct inode *inode)
540 extern int lprocfs_obd_setup(struct obd_device *dev, bool uuid_only);
541 extern int lprocfs_obd_cleanup(struct obd_device *obd);
542 #ifdef HAVE_SERVER_SUPPORT
543 extern const struct file_operations lprocfs_evict_client_fops;
546 extern int ldebugfs_seq_create(struct dentry *parent, const char *name,
548 const struct file_operations *seq_fops,
550 extern int lprocfs_seq_create(struct proc_dir_entry *parent, const char *name,
552 const struct file_operations *seq_fops,
554 extern int lprocfs_obd_seq_create(struct obd_device *dev, const char *name,
556 const struct file_operations *seq_fops,
559 /* Generic callbacks */
560 extern int lprocfs_u64_seq_show(struct seq_file *m, void *data);
561 extern int lprocfs_atomic_seq_show(struct seq_file *m, void *data);
562 extern ssize_t lprocfs_atomic_seq_write(struct file *file,
563 const char __user *buffer,
564 size_t count, loff_t *off);
565 extern int lprocfs_uint_seq_show(struct seq_file *m, void *data);
566 extern ssize_t lprocfs_uint_seq_write(struct file *file,
567 const char __user *buffer,
568 size_t count, loff_t *off);
569 extern int lprocfs_wr_uint(struct file *file, const char __user *buffer,
570 unsigned long count, void *data);
571 extern int lprocfs_uuid_seq_show(struct seq_file *m, void *data);
572 extern int lprocfs_name_seq_show(struct seq_file *m, void *data);
573 extern int lprocfs_server_uuid_seq_show(struct seq_file *m, void *data);
574 extern int lprocfs_conn_uuid_seq_show(struct seq_file *m, void *data);
575 extern int lprocfs_import_seq_show(struct seq_file *m, void *data);
576 extern int lprocfs_state_seq_show(struct seq_file *m, void *data);
577 extern int lprocfs_connect_flags_seq_show(struct seq_file *m, void *data);
578 #ifdef HAVE_SERVER_SUPPORT
579 extern int lprocfs_num_exports_seq_show(struct seq_file *m, void *data);
581 struct adaptive_timeout;
582 extern int lprocfs_at_hist_helper(struct seq_file *m,
583 struct adaptive_timeout *at);
584 extern int lprocfs_timeouts_seq_show(struct seq_file *m, void *data);
586 lprocfs_timeouts_seq_write(struct file *file, const char __user *buffer,
587 size_t count, loff_t *off);
588 #ifdef HAVE_SERVER_SUPPORT
590 lprocfs_evict_client_seq_write(struct file *file, const char __user *buffer,
591 size_t count, loff_t *off);
594 lprocfs_ping_seq_write(struct file *file, const char __user *buffer,
595 size_t count, loff_t *off);
597 lprocfs_import_seq_write(struct file *file, const char __user *buffer,
598 size_t count, loff_t *off);
599 extern int lprocfs_pinger_recov_seq_show(struct seq_file *m, void *data);
601 lprocfs_pinger_recov_seq_write(struct file *file, const char __user *buffer,
602 size_t count, loff_t *off);
604 extern int lprocfs_seq_read_frac_helper(struct seq_file *m, long val, int mult);
605 extern int lprocfs_read_frac_helper(char *buffer, unsigned long count,
607 extern int lprocfs_str_to_s64(const char __user *buffer, unsigned long count,
609 extern int lprocfs_str_with_units_to_s64(const char __user *buffer,
610 unsigned long count, __s64 *val,
612 char *lprocfs_find_named_value(const char *buffer, const char *name,
614 void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value);
615 void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value);
616 void lprocfs_oh_clear(struct obd_histogram *oh);
617 unsigned long lprocfs_oh_sum(struct obd_histogram *oh);
619 void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
620 struct lprocfs_counter *cnt);
622 #ifdef HAVE_SERVER_SUPPORT
623 /* lprocfs_status.c: recovery status */
624 int lprocfs_recovery_status_seq_show(struct seq_file *m, void *data);
626 /* lprocfs_status.c: hash statistics */
627 int lprocfs_hash_seq_show(struct seq_file *m, void *data);
629 /* lprocfs_status.c: IR factor */
630 int lprocfs_ir_factor_seq_show(struct seq_file *m, void *data);
632 lprocfs_ir_factor_seq_write(struct file *file, const char __user *buffer,
633 size_t count, loff_t *off);
636 /* lprocfs_status.c: dump pages on cksum error */
637 int lprocfs_checksum_dump_seq_show(struct seq_file *m, void *data);
639 lprocfs_checksum_dump_seq_write(struct file *file, const char __user *buffer,
640 size_t count, loff_t *off);
642 extern int lprocfs_single_release(struct inode *, struct file *);
643 extern int lprocfs_seq_release(struct inode *, struct file *);
645 /* You must use these macros when you want to refer to
646 * the import in a client obd_device for a lprocfs entry */
647 #define LPROCFS_CLIMP_CHECK(obd) do { \
648 typecheck(struct obd_device *, obd); \
649 down_read(&(obd)->u.cli.cl_sem); \
650 if ((obd)->u.cli.cl_import == NULL) { \
651 up_read(&(obd)->u.cli.cl_sem); \
655 #define LPROCFS_CLIMP_EXIT(obd) \
656 up_read(&(obd)->u.cli.cl_sem);
658 /* write the name##_seq_show function, call LPROC_SEQ_FOPS_RO for read-only
659 proc entries; otherwise, you will define name##_seq_write function also for
660 a read-write proc entry, and then call LPROC_SEQ_SEQ instead. Finally,
661 call lprocfs_obd_seq_create(obd, filename, 0444, &name#_fops, data); */
662 #define __LPROC_SEQ_FOPS(name, custom_seq_write) \
663 static int name##_single_open(struct inode *inode, struct file *file) \
667 rc = LPROCFS_ENTRY_CHECK(inode); \
671 return single_open(file, name##_seq_show, \
672 inode->i_private ? inode->i_private : \
675 static const struct file_operations name##_fops = { \
676 .owner = THIS_MODULE, \
677 .open = name##_single_open, \
679 .write = custom_seq_write, \
680 .llseek = seq_lseek, \
681 .release = lprocfs_single_release, \
684 #define LPROC_SEQ_FOPS_RO(name) __LPROC_SEQ_FOPS(name, NULL)
685 #define LPROC_SEQ_FOPS(name) __LPROC_SEQ_FOPS(name, name##_seq_write)
687 #define LPROC_SEQ_FOPS_RO_TYPE(name, type) \
688 static int name##_##type##_seq_show(struct seq_file *m, void *v)\
690 return lprocfs_##type##_seq_show(m, m->private); \
692 LPROC_SEQ_FOPS_RO(name##_##type)
694 #define LPROC_SEQ_FOPS_RW_TYPE(name, type) \
695 static int name##_##type##_seq_show(struct seq_file *m, void *v)\
697 return lprocfs_##type##_seq_show(m, m->private); \
699 static ssize_t name##_##type##_seq_write(struct file *file, \
700 const char __user *buffer, size_t count, \
703 struct seq_file *seq = file->private_data; \
704 return lprocfs_##type##_seq_write(file, buffer, \
705 count, seq->private); \
707 LPROC_SEQ_FOPS(name##_##type);
709 #define LPROC_SEQ_FOPS_WR_ONLY(name, type) \
710 static ssize_t name##_##type##_write(struct file *file, \
711 const char __user *buffer, size_t count, \
714 return lprocfs_##type##_seq_write(file, buffer, count, off);\
716 static int name##_##type##_open(struct inode *inode, struct file *file)\
718 return single_open(file, NULL, \
719 inode->i_private ? inode->i_private : \
722 static const struct file_operations name##_##type##_fops = { \
723 .open = name##_##type##_open, \
724 .write = name##_##type##_write, \
725 .release = lprocfs_single_release, \
729 struct attribute attr;
730 ssize_t (*show)(struct kobject *kobj, struct attribute *attr,
732 ssize_t (*store)(struct kobject *kobj, struct attribute *attr,
733 const char *buf, size_t len);
736 #define LUSTRE_ATTR(name, mode, show, store) \
737 static struct lustre_attr lustre_attr_##name = __ATTR(name, mode, show, store)
739 #define LUSTRE_WO_ATTR(name) LUSTRE_ATTR(name, 0200, NULL, name##_store)
740 #define LUSTRE_RO_ATTR(name) LUSTRE_ATTR(name, 0444, name##_show, NULL)
741 #define LUSTRE_RW_ATTR(name) LUSTRE_ATTR(name, 0644, name##_show, name##_store)
743 ssize_t lustre_attr_show(struct kobject *kobj, struct attribute *attr,
745 ssize_t lustre_attr_store(struct kobject *kobj, struct attribute *attr,
746 const char *buf, size_t len);
748 extern const struct sysfs_ops lustre_sysfs_ops;
751 struct ptlrpc_request;
752 extern void target_print_req(void *seq_file, struct ptlrpc_request *req);
754 #ifdef HAVE_SERVER_SUPPORT
755 /* lprocfs_jobstats.c */
756 int lprocfs_job_stats_log(struct obd_device *obd, char *jobid,
757 int event, long amount);
758 void lprocfs_job_stats_fini(struct obd_device *obd);
759 int lprocfs_job_stats_init(struct obd_device *obd, int cntr_num,
760 cntr_init_callback fn);
761 int lprocfs_job_interval_seq_show(struct seq_file *m, void *data);
763 lprocfs_job_interval_seq_write(struct file *file, const char __user *buffer,
764 size_t count, loff_t *off);
766 int lprocfs_recovery_time_soft_seq_show(struct seq_file *m, void *data);
767 ssize_t lprocfs_recovery_time_soft_seq_write(struct file *file,
768 const char __user *buffer,
769 size_t count, loff_t *off);
770 int lprocfs_recovery_time_hard_seq_show(struct seq_file *m, void *data);
772 lprocfs_recovery_time_hard_seq_write(struct file *file,
773 const char __user *buffer,
774 size_t count, loff_t *off);
775 int lprocfs_target_instance_seq_show(struct seq_file *m, void *data);
777 int lprocfs_obd_max_pages_per_rpc_seq_show(struct seq_file *m, void *data);
778 ssize_t lprocfs_obd_max_pages_per_rpc_seq_write(struct file *file,
779 const char __user *buffer,
780 size_t count, loff_t *off);
781 int lprocfs_obd_short_io_bytes_seq_show(struct seq_file *m, void *data);
782 ssize_t lprocfs_obd_short_io_bytes_seq_write(struct file *file,
783 const char __user *buffer,
784 size_t count, loff_t *off);
786 struct root_squash_info;
787 int lprocfs_wr_root_squash(const char __user *buffer, unsigned long count,
788 struct root_squash_info *squash, char *name);
789 int lprocfs_wr_nosquash_nids(const char __user *buffer, unsigned long count,
790 struct root_squash_info *squash, char *name);
792 #else /* !CONFIG_PROC_FS */
794 #define proc_lustre_root NULL
796 static inline void lprocfs_counter_add(struct lprocfs_stats *stats,
797 int index, long amount)
799 static inline void lprocfs_counter_incr(struct lprocfs_stats *stats,
802 static inline void lprocfs_counter_sub(struct lprocfs_stats *stats,
803 int index, long amount)
805 static inline void lprocfs_counter_decr(struct lprocfs_stats *stats,
808 static inline void lprocfs_counter_init(struct lprocfs_stats *stats,
809 int index, unsigned conf,
810 const char *name, const char *units)
813 static inline __u64 lc_read_helper(struct lprocfs_counter *lc,
814 enum lprocfs_fields_flags field)
817 /* NB: we return !NULL to satisfy error checker */
818 static inline struct lprocfs_stats *
819 lprocfs_alloc_stats(unsigned int num, enum lprocfs_stats_flags flags)
820 { return (struct lprocfs_stats *)1; }
821 static inline void lprocfs_clear_stats(struct lprocfs_stats *stats)
823 static inline void lprocfs_free_stats(struct lprocfs_stats **stats)
825 static inline int lprocfs_register_stats(struct proc_dir_entry *root,
827 struct lprocfs_stats *stats)
829 static inline void lprocfs_init_ops_stats(int num_private_stats,
830 struct lprocfs_stats *stats)
832 static inline void lprocfs_init_mps_stats(int num_private_stats,
833 struct lprocfs_stats *stats)
835 static inline void lprocfs_init_ldlm_stats(struct lprocfs_stats *ldlm_stats)
837 static inline int lprocfs_alloc_obd_stats(struct obd_device *obddev,
838 unsigned int num_private_stats)
840 static inline int lprocfs_alloc_md_stats(struct obd_device *obddev,
841 unsigned int num_private_stats)
843 static inline void lprocfs_free_obd_stats(struct obd_device *obddev)
845 static inline void lprocfs_free_md_stats(struct obd_device *obddev)
849 static inline int lprocfs_add_clear_entry(struct obd_export *exp)
851 static inline void lprocfs_free_per_client_stats(struct obd_device *obd)
853 #ifdef HAVE_SERVER_SUPPORT
855 ssize_t lprocfs_nid_stats_seq_write(struct file *file,
856 const char __user *buffer,
857 size_t count, loff_t *off)
860 int lprocfs_nid_stats_clear_seq_show(struct seq_file *m, void *data)
862 static inline int lprocfs_exp_setup(struct obd_export *exp,lnet_nid_t *peer_nid)
865 static inline int lprocfs_exp_cleanup(struct obd_export *exp)
867 static inline struct proc_dir_entry *
868 lprocfs_add_simple(struct proc_dir_entry *root, char *name,
869 void *data, const struct file_operations *fops)
871 static inline struct proc_dir_entry *
872 lprocfs_add_symlink(const char *name, struct proc_dir_entry *parent,
873 const char *format, ...)
875 static inline int lprocfs_add_vars(struct proc_dir_entry *root,
876 struct lprocfs_vars *var, void *data)
878 static inline struct proc_dir_entry *
879 lprocfs_register(const char *name, struct proc_dir_entry *parent,
880 struct lprocfs_vars *list, void *data)
882 static inline void lprocfs_remove(struct proc_dir_entry **root)
884 static inline void lprocfs_remove_proc_entry(const char *name,
885 struct proc_dir_entry *parent)
887 static inline int lprocfs_obd_setup(struct obd_device *dev, bool uuid_only)
889 static inline int lprocfs_obd_cleanup(struct obd_device *dev)
891 static inline int lprocfs_uuid_seq_show(struct seq_file *m, void *data)
893 static inline int lprocfs_name_seq_show(struct seq_file *m, void *data)
895 static inline int lprocfs_server_seq_show(struct seq_file *m, void *data)
897 static inline int lprocfs_conn_uuid_seq_show(struct seq_file *m, void *data)
899 static inline int lprocfs_import_seq_show(struct seq_file *m, void *data)
901 static inline int lprocfs_state_seq_show(struct seq_file *m, void *data)
903 static inline int lprocfs_connect_flags_seq_show(struct seq_file *m, void *data)
905 #ifdef HAVE_SERVER_SUPPORT
906 static inline int lprocfs_num_exports_seq_show(struct seq_file *m, void *data)
909 struct adaptive_timeout;
910 static inline int lprocfs_at_hist_helper(struct seq_file *m,
911 struct adaptive_timeout *at)
913 static inline int lprocfs_timeouts_seq_show(struct seq_file *m, void *data)
915 static inline ssize_t
916 lprocfs_timeouts_seq_write(struct file *file, const char __user *buffer,
917 size_t count, loff_t *off)
919 #ifdef HAVE_SERVER_SUPPORT
920 static inline ssize_t
921 lprocfs_evict_client_seq_write(struct file *file, const char __user *buffer,
922 size_t count, loff_t *off)
925 static inline ssize_t
926 lprocfs_ping_seq_write(struct file *file, const char __user *buffer,
927 size_t count, loff_t *off)
929 static inline ssize_t
930 lprocfs_import_seq_write(struct file *file, const char __user *buffer,
931 size_t count, loff_t *off)
934 lprocfs_pinger_recov_seq_show(struct seq_file *m, void *data)
936 static inline ssize_t
937 lprocfs_pinger_recov_seq_write(struct file *file, const char __user *buffer,
938 size_t count, loff_t *off)
943 int lprocfs_blksize_seq_show(struct seq_file *m, void *data)
946 int lprocfs_kbytestotal_seq_show(struct seq_file *m, void *data)
949 int lprocfs_kbytesfree_seq_show(struct seq_file *m, void *data)
952 int lprocfs_kbytesavail_seq_show(struct seq_file *m, void *data)
955 int lprocfs_filestotal_seq_show(struct seq_file *m, void *data)
958 int lprocfs_filesfree_seq_show(struct seq_file *m, void *data)
961 void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value)
964 void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value)
967 void lprocfs_oh_clear(struct obd_histogram *oh)
970 unsigned long lprocfs_oh_sum(struct obd_histogram *oh)
973 void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
974 struct lprocfs_counter *cnt)
977 u64 lprocfs_stats_collector(struct lprocfs_stats *stats, int idx,
978 enum lprocfs_fields_flags field)
981 #define LPROC_SEQ_FOPS_RO(name)
982 #define LPROC_SEQ_FOPS(name)
983 #define LPROC_SEQ_FOPS_RO_TYPE(name, type)
984 #define LPROC_SEQ_FOPS_RW_TYPE(name, type)
985 #define LPROC_SEQ_FOPS_WR_ONLY(name, type)
987 /* lprocfs_jobstats.c */
989 int lprocfs_job_stats_log(struct obd_device *obd, char *jobid, int event,
993 void lprocfs_job_stats_fini(struct obd_device *obd)
996 int lprocfs_job_stats_init(struct obd_device *obd, int cntr_num,
997 cntr_init_callback fn)
1001 /* lproc_ptlrpc.c */
1002 #define target_print_req NULL
1004 #endif /* CONFIG_PROC_FS */
1006 #endif /* LPROCFS_STATUS_H */