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;
63 * Append a space separated list of current set flags to str.
65 #define flag2str(port, flag) \
67 if ((port)->port##_##flag) { \
68 seq_printf(m, "%s" #flag, first ? "" : ", "); \
73 void obd_connect_seq_flags2str(struct seq_file *m, __u64 flags, __u64 flags2,
75 void obd_connect_data_seqprint(struct seq_file *m,
76 struct obd_connect_data *ocd);
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 RENAME_SAMEDIR_SIZE = 0,
109 RENAME_CROSSDIR_SRC_SIZE,
110 RENAME_CROSSDIR_TGT_SIZE,
114 struct rename_stats {
115 struct obd_histogram hist[RENAME_LAST];
118 /* An lprocfs counter can be configured using the enum bit masks below.
120 * LPROCFS_CNTR_EXTERNALLOCK indicates that an external lock already
121 * protects this counter from concurrent updates. If not specified,
122 * lprocfs an internal per-counter lock variable. External locks are
123 * not used to protect counter increments, but are used to protect
124 * counter readout and resets.
126 * LPROCFS_CNTR_AVGMINMAX indicates a multi-valued counter samples,
127 * (i.e. counter can be incremented by more than "1"). When specified,
128 * the counter maintains min, max and sum in addition to a simple
129 * invocation count. This allows averages to be be computed.
130 * If not specified, the counter is an increment-by-1 counter.
131 * min, max, sum, etc. are not maintained.
133 * LPROCFS_CNTR_STDDEV indicates that the counter should track sum of
134 * squares (for multi-valued counter samples only). This allows
135 * external computation of standard deviation, but involves a 64-bit
136 * multiply per counter increment.
140 LPROCFS_CNTR_EXTERNALLOCK = 0x0001,
141 LPROCFS_CNTR_AVGMINMAX = 0x0002,
142 LPROCFS_CNTR_STDDEV = 0x0004,
144 /* counter data type */
145 LPROCFS_TYPE_REGS = 0x0100,
146 LPROCFS_TYPE_BYTES = 0x0200,
147 LPROCFS_TYPE_PAGES = 0x0400,
148 LPROCFS_TYPE_CYCLE = 0x0800,
151 #define LC_MIN_INIT ((~(__u64)0) >> 1)
153 struct lprocfs_counter_header {
154 unsigned int lc_config;
155 const char *lc_name; /* must be static */
156 const char *lc_units; /* must be static */
159 struct lprocfs_counter {
165 * Every counter has lc_array_sum[0], while lc_array_sum[1] is only
166 * for irq context counter, i.e. stats with
167 * LPROCFS_STATS_FLAG_IRQ_SAFE flag, its counter need
170 __s64 lc_array_sum[1];
172 #define lc_sum lc_array_sum[0]
173 #define lc_sum_irq lc_array_sum[1]
175 struct lprocfs_percpu {
176 struct lprocfs_counter lp_cntr[0];
179 enum lprocfs_stats_lock_ops {
180 LPROCFS_GET_NUM_CPU = 0x0001, /* number allocated per-CPU stats */
181 LPROCFS_GET_SMP_ID = 0x0002, /* current stat to be updated */
184 enum lprocfs_stats_flags {
185 LPROCFS_STATS_FLAG_NONE = 0x0000, /* per cpu counter */
186 LPROCFS_STATS_FLAG_NOPERCPU = 0x0001, /* stats have no percpu
187 * area and need locking */
188 LPROCFS_STATS_FLAG_IRQ_SAFE = 0x0002, /* alloc need irq safe */
191 enum lprocfs_fields_flags {
192 LPROCFS_FIELDS_FLAGS_CONFIG = 0x0001,
193 LPROCFS_FIELDS_FLAGS_SUM = 0x0002,
194 LPROCFS_FIELDS_FLAGS_MIN = 0x0003,
195 LPROCFS_FIELDS_FLAGS_MAX = 0x0004,
196 LPROCFS_FIELDS_FLAGS_AVG = 0x0005,
197 LPROCFS_FIELDS_FLAGS_SUMSQUARE = 0x0006,
198 LPROCFS_FIELDS_FLAGS_COUNT = 0x0007,
201 struct lprocfs_stats {
203 unsigned short ls_num;
204 /* 1 + the biggest cpu # whose ls_percpu slot has been allocated */
205 unsigned short ls_biggest_alloc_num;
206 enum lprocfs_stats_flags ls_flags;
207 /* Lock used when there are no percpu stats areas; For percpu stats,
208 * it is used to protect ls_biggest_alloc_num change */
211 /* has ls_num of counter headers */
212 struct lprocfs_counter_header *ls_cnt_header;
213 struct lprocfs_percpu *ls_percpu[0];
216 #define OPC_RANGE(seg) (seg ## _LAST_OPC - seg ## _FIRST_OPC)
218 /* Pack all opcodes down into a single monotonically increasing index */
219 static inline int opcode_offset(__u32 opc) {
220 if (opc < OST_LAST_OPC) {
222 return (opc - OST_FIRST_OPC);
223 } else if (opc < MDS_LAST_OPC) {
225 return (opc - MDS_FIRST_OPC +
227 } else if (opc < LDLM_LAST_OPC) {
229 return (opc - LDLM_FIRST_OPC +
232 } else if (opc < MGS_LAST_OPC) {
234 return (opc - MGS_FIRST_OPC +
238 } else if (opc < OBD_LAST_OPC) {
240 return (opc - OBD_FIRST_OPC +
245 } else if (opc < LLOG_LAST_OPC) {
247 return (opc - LLOG_FIRST_OPC +
253 } else if (opc < QUOTA_LAST_OPC) {
255 return (opc - QUOTA_FIRST_OPC +
262 } else if (opc < SEQ_LAST_OPC) {
264 return (opc - SEQ_FIRST_OPC +
272 } else if (opc < SEC_LAST_OPC) {
274 return (opc - SEC_FIRST_OPC +
283 } else if (opc < FLD_LAST_OPC) {
285 return (opc - FLD_FIRST_OPC +
295 } else if (opc < OUT_UPDATE_LAST_OPC) {
297 return (opc - OUT_UPDATE_FIRST_OPC +
308 } else if (opc < LFSCK_LAST_OPC) {
310 return (opc - LFSCK_FIRST_OPC +
311 OPC_RANGE(OUT_UPDATE) +
329 #define LUSTRE_MAX_OPCODES (OPC_RANGE(OST) + \
339 OPC_RANGE(OUT_UPDATE) + \
342 #define EXTRA_MAX_OPCODES ((PTLRPC_LAST_CNTR - PTLRPC_FIRST_CNTR) + \
346 PTLRPC_REQWAIT_CNTR = 0,
347 PTLRPC_REQQDEPTH_CNTR,
348 PTLRPC_REQACTIVE_CNTR,
350 PTLRPC_REQBUF_AVAIL_CNTR,
354 #define PTLRPC_FIRST_CNTR PTLRPC_REQWAIT_CNTR
356 enum lprocfs_extra_opc {
357 LDLM_GLIMPSE_ENQUEUE = 0,
375 #define EXTRA_FIRST_OPC LDLM_GLIMPSE_ENQUEUE
377 extern struct proc_dir_entry *proc_lustre_root;
378 extern struct dentry *debugfs_lustre_root;
379 extern struct kset *lustre_kset;
382 struct obd_histogram;
384 #define JOBSTATS_JOBID_VAR_MAX_LEN 20
385 #define JOBSTATS_DISABLE "disable"
386 #define JOBSTATS_PROCNAME_UID "procname_uid"
387 #define JOBSTATS_NODELOCAL "nodelocal"
389 typedef void (*cntr_init_callback)(struct lprocfs_stats *stats);
391 struct obd_job_stats {
392 struct cfs_hash *ojs_hash; /* hash of jobids */
393 struct list_head ojs_list; /* list of job_stat structs */
394 rwlock_t ojs_lock; /* protect ojs_list/js_list */
395 unsigned int ojs_cleanup_interval;/* seconds before expiry */
396 time64_t ojs_last_cleanup; /* previous cleanup time */
397 cntr_init_callback ojs_cntr_init_fn;/* lprocfs_stats initializer */
398 unsigned short ojs_cntr_num; /* number of stats in struct */
399 bool ojs_cleaning; /* currently expiring stats */
402 #ifdef CONFIG_PROC_FS
404 int lprocfs_stats_alloc_one(struct lprocfs_stats *stats,
406 int lprocfs_stats_lock(struct lprocfs_stats *stats,
407 enum lprocfs_stats_lock_ops opc,
408 unsigned long *flags);
409 void lprocfs_stats_unlock(struct lprocfs_stats *stats,
410 enum lprocfs_stats_lock_ops opc,
411 unsigned long *flags);
413 static inline unsigned int
414 lprocfs_stats_counter_size(struct lprocfs_stats *stats)
416 unsigned int percpusize;
418 percpusize = offsetof(struct lprocfs_percpu, lp_cntr[stats->ls_num]);
420 /* irq safe stats need lc_array_sum[1] */
421 if ((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
422 percpusize += stats->ls_num * sizeof(__s64);
424 if ((stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) == 0)
425 percpusize = L1_CACHE_ALIGN(percpusize);
430 static inline struct lprocfs_counter *
431 lprocfs_stats_counter_get(struct lprocfs_stats *stats, unsigned int cpuid,
434 struct lprocfs_counter *cntr;
436 cntr = &stats->ls_percpu[cpuid]->lp_cntr[index];
438 if ((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
439 cntr = (void *)cntr + index * sizeof(__s64);
444 /* Two optimized LPROCFS counter increment functions are provided:
445 * lprocfs_counter_incr(cntr, value) - optimized for by-one counters
446 * lprocfs_counter_add(cntr) - use for multi-valued counters
447 * Counter data layout allows config flag, counter lock and the
448 * count itself to reside within a single cache line.
451 extern void lprocfs_counter_add(struct lprocfs_stats *stats, int idx,
453 extern void lprocfs_counter_sub(struct lprocfs_stats *stats, int idx,
456 #define lprocfs_counter_incr(stats, idx) \
457 lprocfs_counter_add(stats, idx, 1)
458 #define lprocfs_counter_decr(stats, idx) \
459 lprocfs_counter_sub(stats, idx, 1)
461 extern __s64 lprocfs_read_helper(struct lprocfs_counter *lc,
462 struct lprocfs_counter_header *header,
463 enum lprocfs_stats_flags flags,
464 enum lprocfs_fields_flags field);
465 u64 lprocfs_stats_collector(struct lprocfs_stats *stats, int idx,
466 enum lprocfs_fields_flags field);
468 extern struct lprocfs_stats *
469 lprocfs_alloc_stats(unsigned int num, enum lprocfs_stats_flags flags);
470 extern void lprocfs_clear_stats(struct lprocfs_stats *stats);
471 extern void lprocfs_free_stats(struct lprocfs_stats **stats);
472 extern void lprocfs_init_ops_stats(int num_private_stats,
473 struct lprocfs_stats *stats);
474 extern void lprocfs_init_mps_stats(int num_private_stats,
475 struct lprocfs_stats *stats);
476 extern void lprocfs_init_ldlm_stats(struct lprocfs_stats *ldlm_stats);
477 extern int lprocfs_alloc_obd_stats(struct obd_device *obddev,
478 unsigned int num_private_stats);
479 extern int lprocfs_alloc_md_stats(struct obd_device *obddev,
480 unsigned int num_private_stats);
481 extern void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
482 unsigned conf, const char *name,
484 extern void lprocfs_free_obd_stats(struct obd_device *obddev);
485 extern void lprocfs_free_md_stats(struct obd_device *obddev);
488 extern int lprocfs_add_clear_entry(struct obd_device * obd,
489 struct proc_dir_entry *entry);
490 #ifdef HAVE_SERVER_SUPPORT
491 extern int lprocfs_exp_setup(struct obd_export *exp, lnet_nid_t *peer_nid);
492 extern int lprocfs_exp_cleanup(struct obd_export *exp);
493 struct dentry *ldebugfs_add_symlink(const char *name, const char *target,
494 const char *format, ...);
496 static inline int lprocfs_exp_cleanup(struct obd_export *exp)
499 struct dentry *ldebugfs_add_simple(struct dentry *root, char *name, void *data,
500 const struct file_operations *fops);
501 extern struct proc_dir_entry *
502 lprocfs_add_simple(struct proc_dir_entry *root, char *name,
503 void *data, const struct file_operations *fops);
504 extern struct proc_dir_entry *
505 lprocfs_add_symlink(const char *name, struct proc_dir_entry *parent,
506 const char *format, ...);
507 extern void lprocfs_free_per_client_stats(struct obd_device *obd);
508 #ifdef HAVE_SERVER_SUPPORT
510 lprocfs_nid_stats_clear_seq_write(struct file *file, const char __user *buffer,
511 size_t count, loff_t *off);
512 extern int lprocfs_nid_stats_clear_seq_show(struct seq_file *file, void *data);
514 extern int ldebugfs_register_stats(struct dentry *parent, const char *name,
515 struct lprocfs_stats *stats);
516 extern int lprocfs_register_stats(struct proc_dir_entry *root, const char *name,
517 struct lprocfs_stats *stats);
519 /* lprocfs_status.c */
520 extern int ldebugfs_add_vars(struct dentry *parent, struct lprocfs_vars *var,
522 extern int lprocfs_add_vars(struct proc_dir_entry *root,
523 struct lprocfs_vars *var, void *data);
525 extern struct dentry *ldebugfs_register(const char *name,
526 struct dentry *parent,
527 struct lprocfs_vars *list,
529 extern struct proc_dir_entry *
530 lprocfs_register(const char *name, struct proc_dir_entry *parent,
531 struct lprocfs_vars *list, void *data);
533 extern void ldebugfs_remove(struct dentry **entryp);
534 extern void lprocfs_remove(struct proc_dir_entry **root);
535 extern void lprocfs_remove_proc_entry(const char *name,
536 struct proc_dir_entry *parent);
537 #ifndef HAVE_REMOVE_PROC_SUBTREE
538 extern int remove_proc_subtree(const char *name,
539 struct proc_dir_entry *parent);
540 #define PDE_DATA(inode) (PDE(inode)->data)
542 static inline int LPROCFS_ENTRY_CHECK(struct inode *inode)
544 struct proc_dir_entry *dp = PDE(inode);
547 spin_lock(&(dp)->pde_unload_lock);
548 if (dp->proc_fops == NULL)
550 spin_unlock(&(dp)->pde_unload_lock);
556 static inline int LPROCFS_ENTRY_CHECK(struct inode *inode)
560 extern int lprocfs_obd_setup(struct obd_device *obd, bool uuid_only);
561 extern int lprocfs_obd_cleanup(struct obd_device *obd);
562 #ifdef HAVE_SERVER_SUPPORT
563 extern const struct file_operations lprocfs_evict_client_fops;
566 int ldebugfs_seq_create(struct dentry *parent, const char *name, umode_t mode,
567 const struct file_operations *seq_fops, void *data);
568 extern int lprocfs_seq_create(struct proc_dir_entry *parent, const char *name,
570 const struct file_operations *seq_fops,
572 extern int lprocfs_obd_seq_create(struct obd_device *dev, const char *name,
574 const struct file_operations *seq_fops,
577 /* Generic callbacks */
578 extern int lprocfs_uuid_seq_show(struct seq_file *m, void *data);
579 extern int lprocfs_name_seq_show(struct seq_file *m, void *data);
580 extern int lprocfs_server_uuid_seq_show(struct seq_file *m, void *data);
581 extern int lprocfs_conn_uuid_seq_show(struct seq_file *m, void *data);
582 ssize_t conn_uuid_show(struct kobject *kobj, struct attribute *attr, char *buf);
583 extern int lprocfs_import_seq_show(struct seq_file *m, void *data);
584 extern int lprocfs_state_seq_show(struct seq_file *m, void *data);
585 extern int lprocfs_connect_flags_seq_show(struct seq_file *m, void *data);
586 #ifdef HAVE_SERVER_SUPPORT
587 extern int lprocfs_num_exports_seq_show(struct seq_file *m, void *data);
589 struct adaptive_timeout;
590 extern int lprocfs_at_hist_helper(struct seq_file *m,
591 struct adaptive_timeout *at);
592 extern int lprocfs_timeouts_seq_show(struct seq_file *m, void *data);
594 lprocfs_timeouts_seq_write(struct file *file, const char __user *buffer,
595 size_t count, loff_t *off);
596 #ifdef HAVE_SERVER_SUPPORT
598 lprocfs_evict_client_seq_write(struct file *file, const char __user *buffer,
599 size_t count, loff_t *off);
601 ssize_t ping_store(struct kobject *kobj, struct attribute *attr,
602 const char *buffer, size_t count);
604 lprocfs_ping_seq_write(struct file *file, const char __user *buffer,
605 size_t count, loff_t *off);
607 lprocfs_import_seq_write(struct file *file, const char __user *buffer,
608 size_t count, loff_t *off);
609 extern int lprocfs_pinger_recov_seq_show(struct seq_file *m, void *data);
611 lprocfs_pinger_recov_seq_write(struct file *file, const char __user *buffer,
612 size_t count, loff_t *off);
614 extern int lprocfs_seq_read_frac_helper(struct seq_file *m, long val, int mult);
615 extern int lprocfs_read_frac_helper(char *buffer, unsigned long count,
617 extern int lprocfs_str_with_units_to_s64(const char __user *buffer,
618 unsigned long count, __s64 *val,
620 char *lprocfs_find_named_value(const char *buffer, const char *name,
622 void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value);
623 void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value);
624 void lprocfs_oh_clear(struct obd_histogram *oh);
625 unsigned long lprocfs_oh_sum(struct obd_histogram *oh);
627 void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
628 struct lprocfs_counter *cnt);
630 #ifdef HAVE_SERVER_SUPPORT
631 /* lprocfs_status.c: recovery status */
632 int lprocfs_recovery_status_seq_show(struct seq_file *m, void *data);
634 /* lprocfs_status.c: hash statistics */
635 int lprocfs_hash_seq_show(struct seq_file *m, void *data);
637 /* lprocfs_status.c: IR factor */
638 int lprocfs_ir_factor_seq_show(struct seq_file *m, void *data);
640 lprocfs_ir_factor_seq_write(struct file *file, const char __user *buffer,
641 size_t count, loff_t *off);
644 /* lprocfs_status.c: dump pages on cksum error */
645 int lprocfs_checksum_dump_seq_show(struct seq_file *m, void *data);
647 lprocfs_checksum_dump_seq_write(struct file *file, const char __user *buffer,
648 size_t count, loff_t *off);
650 extern int lprocfs_single_release(struct inode *, struct file *);
651 extern int lprocfs_seq_release(struct inode *, struct file *);
653 /* You must use these macros when you want to refer to
654 * the import in a client obd_device for a lprocfs entry */
655 #define LPROCFS_CLIMP_CHECK(obd) do { \
656 typecheck(struct obd_device *, obd); \
657 down_read(&(obd)->u.cli.cl_sem); \
658 if ((obd)->u.cli.cl_import == NULL) { \
659 up_read(&(obd)->u.cli.cl_sem); \
663 #define LPROCFS_CLIMP_EXIT(obd) \
664 up_read(&(obd)->u.cli.cl_sem);
666 /* write the name##_seq_show function, call LDEBUGFS_SEQ_FOPS_RO for read-only
667 * debugfs entries; otherwise, you will define name##_seq_write function also
668 * for a read-write debugfs entry, and then call LDEBUGFS_SEQ_FOPS instead.
669 * Finally, call ldebugfs_seq_create(obd, filename, 0444, &name#_fops, data);
671 #define __LDEBUGFS_SEQ_FOPS(name, custom_seq_write) \
672 static int name##_single_open(struct inode *inode, struct file *file) \
674 return single_open(file, name##_seq_show, inode->i_private); \
676 static const struct file_operations name##_fops = { \
677 .owner = THIS_MODULE, \
678 .open = name##_single_open, \
680 .write = custom_seq_write, \
681 .llseek = seq_lseek, \
682 .release = single_release, \
685 #define LDEBUGFS_SEQ_FOPS_RO(name) __LDEBUGFS_SEQ_FOPS(name, NULL)
686 #define LDEBUGFS_SEQ_FOPS(name) __LDEBUGFS_SEQ_FOPS(name, \
689 #define LDEBUGFS_SEQ_FOPS_RO_TYPE(name, type) \
690 static int name##_##type##_seq_show(struct seq_file *m, void *v)\
692 return lprocfs_##type##_seq_show(m, m->private); \
694 LDEBUGFS_SEQ_FOPS_RO(name##_##type)
696 #define LDEBUGFS_SEQ_FOPS_RW_TYPE(name, type) \
697 static int name##_##type##_seq_show(struct seq_file *m, void *v)\
699 return lprocfs_##type##_seq_show(m, m->private); \
701 static ssize_t name##_##type##_seq_write(struct file *file, \
702 const char __user *buffer, size_t count, \
705 struct seq_file *seq = file->private_data; \
706 return ldebugfs_##type##_seq_write(file, buffer, count, \
709 LDEBUGFS_SEQ_FOPS(name##_##type);
711 #define LDEBUGFS_FOPS_WR_ONLY(name, type) \
712 static ssize_t name##_##type##_write(struct file *file, \
713 const char __user *buffer, size_t count, \
716 return ldebugfs_##type##_seq_write(file, buffer, count, \
719 static int name##_##type##_open(struct inode *inode, \
722 return single_open(file, NULL, inode->i_private); \
724 static const struct file_operations name##_##type##_fops = { \
725 .open = name##_##type##_open, \
726 .write = name##_##type##_write, \
727 .release = single_release, \
730 /* write the name##_seq_show function, call LPROC_SEQ_FOPS_RO for read-only
731 * proc entries; otherwise, you will define name##_seq_write function also for
732 * a read-write proc entry, and then call LPROC_SEQ_FOPS instead. Finally,
733 * call ldebugfs_obd_seq_create(obd, filename, 0444, &name#_fops, data);
735 #define __LPROC_SEQ_FOPS(name, custom_seq_write) \
736 static int name##_single_open(struct inode *inode, struct file *file) \
740 rc = LPROCFS_ENTRY_CHECK(inode); \
744 return single_open(file, name##_seq_show, \
745 inode->i_private ? inode->i_private : \
748 static const struct file_operations name##_fops = { \
749 .owner = THIS_MODULE, \
750 .open = name##_single_open, \
752 .write = custom_seq_write, \
753 .llseek = seq_lseek, \
754 .release = lprocfs_single_release, \
757 #define LPROC_SEQ_FOPS_RO(name) __LPROC_SEQ_FOPS(name, NULL)
758 #define LPROC_SEQ_FOPS(name) __LPROC_SEQ_FOPS(name, name##_seq_write)
760 #define LPROC_SEQ_FOPS_RO_TYPE(name, type) \
761 static int name##_##type##_seq_show(struct seq_file *m, void *v)\
763 return lprocfs_##type##_seq_show(m, m->private); \
765 LPROC_SEQ_FOPS_RO(name##_##type)
767 #define LPROC_SEQ_FOPS_RW_TYPE(name, type) \
768 static int name##_##type##_seq_show(struct seq_file *m, void *v)\
770 return lprocfs_##type##_seq_show(m, m->private); \
772 static ssize_t name##_##type##_seq_write(struct file *file, \
773 const char __user *buffer, size_t count, \
776 struct seq_file *seq = file->private_data; \
777 return lprocfs_##type##_seq_write(file, buffer, \
778 count, seq->private); \
780 LPROC_SEQ_FOPS(name##_##type);
782 #define LPROC_SEQ_FOPS_WR_ONLY(name, type) \
783 static ssize_t name##_##type##_write(struct file *file, \
784 const char __user *buffer, size_t count, \
787 return lprocfs_##type##_seq_write(file, buffer, count, off);\
789 static int name##_##type##_open(struct inode *inode, struct file *file)\
791 return single_open(file, NULL, \
792 inode->i_private ? inode->i_private : \
795 static const struct file_operations name##_##type##_fops = { \
796 .open = name##_##type##_open, \
797 .write = name##_##type##_write, \
798 .release = lprocfs_single_release, \
802 struct attribute attr;
803 ssize_t (*show)(struct kobject *kobj, struct attribute *attr,
805 ssize_t (*store)(struct kobject *kobj, struct attribute *attr,
806 const char *buf, size_t len);
809 #define LUSTRE_ATTR(name, mode, show, store) \
810 static struct lustre_attr lustre_attr_##name = __ATTR(name, mode, show, store)
812 #define LUSTRE_WO_ATTR(name) LUSTRE_ATTR(name, 0200, NULL, name##_store)
813 #define LUSTRE_RO_ATTR(name) LUSTRE_ATTR(name, 0444, name##_show, NULL)
814 #define LUSTRE_RW_ATTR(name) LUSTRE_ATTR(name, 0644, name##_show, name##_store)
816 ssize_t lustre_attr_show(struct kobject *kobj, struct attribute *attr,
818 ssize_t lustre_attr_store(struct kobject *kobj, struct attribute *attr,
819 const char *buf, size_t len);
821 extern const struct sysfs_ops lustre_sysfs_ops;
824 struct ptlrpc_request;
825 extern void target_print_req(void *seq_file, struct ptlrpc_request *req);
827 #ifdef HAVE_SERVER_SUPPORT
828 /* lprocfs_jobstats.c */
829 int lprocfs_job_stats_log(struct obd_device *obd, char *jobid,
830 int event, long amount);
831 void lprocfs_job_stats_fini(struct obd_device *obd);
832 int lprocfs_job_stats_init(struct obd_device *obd, int cntr_num,
833 cntr_init_callback fn);
834 int lprocfs_job_interval_seq_show(struct seq_file *m, void *data);
836 lprocfs_job_interval_seq_write(struct file *file, const char __user *buffer,
837 size_t count, loff_t *off);
839 int lprocfs_recovery_time_soft_seq_show(struct seq_file *m, void *data);
840 ssize_t lprocfs_recovery_time_soft_seq_write(struct file *file,
841 const char __user *buffer,
842 size_t count, loff_t *off);
843 int lprocfs_recovery_time_hard_seq_show(struct seq_file *m, void *data);
845 lprocfs_recovery_time_hard_seq_write(struct file *file,
846 const char __user *buffer,
847 size_t count, loff_t *off);
848 int lprocfs_target_instance_seq_show(struct seq_file *m, void *data);
850 int lprocfs_obd_max_pages_per_rpc_seq_show(struct seq_file *m, void *data);
851 ssize_t lprocfs_obd_max_pages_per_rpc_seq_write(struct file *file,
852 const char __user *buffer,
853 size_t count, loff_t *off);
854 int lprocfs_obd_short_io_bytes_seq_show(struct seq_file *m, void *data);
855 ssize_t lprocfs_obd_short_io_bytes_seq_write(struct file *file,
856 const char __user *buffer,
857 size_t count, loff_t *off);
859 struct root_squash_info;
860 int lprocfs_wr_root_squash(const char __user *buffer, unsigned long count,
861 struct root_squash_info *squash, char *name);
862 int lprocfs_wr_nosquash_nids(const char __user *buffer, unsigned long count,
863 struct root_squash_info *squash, char *name);
865 #else /* !CONFIG_PROC_FS */
867 #define proc_lustre_root NULL
869 static inline void lprocfs_counter_add(struct lprocfs_stats *stats,
870 int index, long amount)
872 static inline void lprocfs_counter_incr(struct lprocfs_stats *stats,
875 static inline void lprocfs_counter_sub(struct lprocfs_stats *stats,
876 int index, long amount)
878 static inline void lprocfs_counter_decr(struct lprocfs_stats *stats,
881 static inline void lprocfs_counter_init(struct lprocfs_stats *stats,
882 int index, unsigned conf,
883 const char *name, const char *units)
886 static inline __u64 lc_read_helper(struct lprocfs_counter *lc,
887 enum lprocfs_fields_flags field)
890 /* NB: we return !NULL to satisfy error checker */
891 static inline struct lprocfs_stats *
892 lprocfs_alloc_stats(unsigned int num, enum lprocfs_stats_flags flags)
893 { return (struct lprocfs_stats *)1; }
894 static inline void lprocfs_clear_stats(struct lprocfs_stats *stats)
896 static inline void lprocfs_free_stats(struct lprocfs_stats **stats)
898 static inline int lprocfs_register_stats(struct proc_dir_entry *root,
900 struct lprocfs_stats *stats)
902 static inline void lprocfs_init_ops_stats(int num_private_stats,
903 struct lprocfs_stats *stats)
905 static inline void lprocfs_init_mps_stats(int num_private_stats,
906 struct lprocfs_stats *stats)
908 static inline void lprocfs_init_ldlm_stats(struct lprocfs_stats *ldlm_stats)
910 static inline int lprocfs_alloc_obd_stats(struct obd_device *obddev,
911 unsigned int num_private_stats)
913 static inline int lprocfs_alloc_md_stats(struct obd_device *obddev,
914 unsigned int num_private_stats)
916 static inline void lprocfs_free_obd_stats(struct obd_device *obddev)
918 static inline void lprocfs_free_md_stats(struct obd_device *obddev)
922 static inline int lprocfs_add_clear_entry(struct obd_export *exp)
924 static inline void lprocfs_free_per_client_stats(struct obd_device *obd)
926 #ifdef HAVE_SERVER_SUPPORT
928 ssize_t lprocfs_nid_stats_seq_write(struct file *file,
929 const char __user *buffer,
930 size_t count, loff_t *off)
933 int lprocfs_nid_stats_clear_seq_show(struct seq_file *m, void *data)
935 static inline int lprocfs_exp_setup(struct obd_export *exp,lnet_nid_t *peer_nid)
938 static inline int lprocfs_exp_cleanup(struct obd_export *exp)
940 static inline struct proc_dir_entry *
941 lprocfs_add_simple(struct proc_dir_entry *root, char *name,
942 void *data, const struct file_operations *fops)
944 static inline struct proc_dir_entry *
945 lprocfs_add_symlink(const char *name, struct proc_dir_entry *parent,
946 const char *format, ...)
948 static inline int lprocfs_add_vars(struct proc_dir_entry *root,
949 struct lprocfs_vars *var, void *data)
951 static inline struct proc_dir_entry *
952 lprocfs_register(const char *name, struct proc_dir_entry *parent,
953 struct lprocfs_vars *list, void *data)
955 static inline void lprocfs_remove(struct proc_dir_entry **root)
957 static inline void lprocfs_remove_proc_entry(const char *name,
958 struct proc_dir_entry *parent)
960 static inline int lprocfs_obd_setup(struct obd_device *dev, bool uuid_only)
962 static inline int lprocfs_obd_cleanup(struct obd_device *dev)
964 static inline int lprocfs_uuid_seq_show(struct seq_file *m, void *data)
966 static inline int lprocfs_name_seq_show(struct seq_file *m, void *data)
968 static inline int lprocfs_server_seq_show(struct seq_file *m, void *data)
970 static inline int lprocfs_conn_uuid_seq_show(struct seq_file *m, void *data)
972 static inline int lprocfs_import_seq_show(struct seq_file *m, void *data)
974 static inline int lprocfs_state_seq_show(struct seq_file *m, void *data)
976 static inline int lprocfs_connect_flags_seq_show(struct seq_file *m, void *data)
978 #ifdef HAVE_SERVER_SUPPORT
979 static inline int lprocfs_num_exports_seq_show(struct seq_file *m, void *data)
982 struct adaptive_timeout;
983 static inline int lprocfs_at_hist_helper(struct seq_file *m,
984 struct adaptive_timeout *at)
986 static inline int lprocfs_timeouts_seq_show(struct seq_file *m, void *data)
988 static inline ssize_t
989 lprocfs_timeouts_seq_write(struct file *file, const char __user *buffer,
990 size_t count, loff_t *off)
992 #ifdef HAVE_SERVER_SUPPORT
993 static inline ssize_t
994 lprocfs_evict_client_seq_write(struct file *file, const char __user *buffer,
995 size_t count, loff_t *off)
998 static inline ssize_t
999 lprocfs_ping_seq_write(struct file *file, const char __user *buffer,
1000 size_t count, loff_t *off)
1002 static inline ssize_t
1003 lprocfs_import_seq_write(struct file *file, const char __user *buffer,
1004 size_t count, loff_t *off)
1007 lprocfs_pinger_recov_seq_show(struct seq_file *m, void *data)
1009 static inline ssize_t
1010 lprocfs_pinger_recov_seq_write(struct file *file, const char __user *buffer,
1011 size_t count, loff_t *off)
1014 /* Statfs helpers */
1016 int lprocfs_blksize_seq_show(struct seq_file *m, void *data)
1019 int lprocfs_kbytestotal_seq_show(struct seq_file *m, void *data)
1022 int lprocfs_kbytesfree_seq_show(struct seq_file *m, void *data)
1025 int lprocfs_kbytesavail_seq_show(struct seq_file *m, void *data)
1028 int lprocfs_filestotal_seq_show(struct seq_file *m, void *data)
1031 int lprocfs_filesfree_seq_show(struct seq_file *m, void *data)
1034 void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value)
1037 void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value)
1040 void lprocfs_oh_clear(struct obd_histogram *oh)
1043 unsigned long lprocfs_oh_sum(struct obd_histogram *oh)
1046 void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
1047 struct lprocfs_counter *cnt)
1050 u64 lprocfs_stats_collector(struct lprocfs_stats *stats, int idx,
1051 enum lprocfs_fields_flags field)
1052 { return (__u64)0; }
1054 #define LPROC_SEQ_FOPS_RO(name)
1055 #define LPROC_SEQ_FOPS(name)
1056 #define LPROC_SEQ_FOPS_RO_TYPE(name, type)
1057 #define LPROC_SEQ_FOPS_RW_TYPE(name, type)
1058 #define LPROC_SEQ_FOPS_WR_ONLY(name, type)
1060 /* lprocfs_jobstats.c */
1062 int lprocfs_job_stats_log(struct obd_device *obd, char *jobid, int event,
1066 void lprocfs_job_stats_fini(struct obd_device *obd)
1069 int lprocfs_job_stats_init(struct obd_device *obd, int cntr_num,
1070 cntr_init_callback fn)
1074 /* lproc_ptlrpc.c */
1075 #define target_print_req NULL
1077 #endif /* CONFIG_PROC_FS */
1079 #endif /* LPROCFS_STATUS_H */