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/
31 * lustre/include/lprocfs_status.h
33 * Top level header file for LProc
35 * Author: Hariharan Thantry thantry@users.sourceforge.net
37 #ifndef _LPROCFS_STATUS_H
38 #define _LPROCFS_STATUS_H
41 #include <linux/proc_fs.h>
42 #include <linux/debugfs.h>
43 #include <linux/rwsem.h>
44 #include <linux/spinlock.h>
45 #include <linux/string_helpers.h>
46 #include <linux/seq_file.h>
48 #include <libcfs/libcfs.h>
49 #include <libcfs/linux/linux-fs.h>
50 #include <uapi/linux/lustre/lustre_idl.h>
53 * Liuux 5.6 introduces proc_ops with v5.5-8862-gd56c0d45f0e2
54 * Now that proc and debugfs use separate operation vector types
55 * separate containers are also needed.
59 const struct proc_ops *fops;
61 /** /proc file mode. */
65 /** Provide a debugfs container */
66 struct ldebugfs_vars {
68 const struct file_operations *fops;
70 /** debugfs file mode. */
74 static inline unsigned int pct(unsigned long a, unsigned long b)
76 return b ? a * 100 / b : 0;
79 #define PAGES_TO_MiB(pages) ((pages) >> (20 - PAGE_SHIFT))
80 #define MiB_TO_PAGES(mb) ((mb) << (20 - PAGE_SHIFT))
83 * Append a space separated list of current set flags to str.
85 #define flag2str(port, flag) \
87 if ((port)->port##_##flag) { \
88 seq_printf(m, "%s" #flag, first ? "" : ", "); \
93 void obd_connect_seq_flags2str(struct seq_file *m, __u64 flags, __u64 flags2,
95 void obd_connect_data_seqprint(struct seq_file *m,
96 struct obd_connect_data *ocd);
98 /* if we find more consumers this could be generalized */
99 #define OBD_HIST_MAX 32
100 struct obd_histogram {
102 unsigned long oh_buckets[OBD_HIST_MAX];
114 BRW_R_DISCONT_BLOCKS,
115 BRW_W_DISCONT_BLOCKS,
125 struct obd_histogram bs_hist[BRW_LAST];
129 RENAME_SAMEDIR_SIZE = 0,
130 RENAME_CROSSDIR_SRC_SIZE,
131 RENAME_CROSSDIR_TGT_SIZE,
135 struct rename_stats {
137 struct obd_histogram rs_hist[RENAME_LAST];
140 /* An lprocfs counter can be configured using the enum bit masks below.
142 * LPROCFS_CNTR_EXTERNALLOCK indicates that an external lock already
143 * protects this counter from concurrent updates. If not specified,
144 * lprocfs an internal per-counter lock variable. External locks are
145 * not used to protect counter increments, but are used to protect
146 * counter readout and resets.
148 * LPROCFS_CNTR_AVGMINMAX indicates a multi-valued counter samples,
149 * (i.e. counter can be incremented by more than "1"). When specified,
150 * the counter maintains min, max and sum in addition to a simple
151 * invocation count. This allows averages to be be computed.
152 * If not specified, the counter is an increment-by-1 counter.
153 * min, max, sum, etc. are not maintained.
155 * LPROCFS_CNTR_STDDEV indicates that the counter should track sum of
156 * squares (for multi-valued counter samples only). This allows
157 * external computation of standard deviation, but involves a 64-bit
158 * multiply per counter increment.
162 LPROCFS_CNTR_EXTERNALLOCK = 0x0001,
163 LPROCFS_CNTR_AVGMINMAX = 0x0002,
164 LPROCFS_CNTR_STDDEV = 0x0004,
166 /* counter data type */
167 LPROCFS_TYPE_REQS = 0x0100,
168 LPROCFS_TYPE_BYTES = 0x0200,
169 LPROCFS_TYPE_PAGES = 0x0400,
170 LPROCFS_TYPE_USEC = 0x0800,
172 LPROCFS_TYPE_LATENCY = LPROCFS_TYPE_USEC |
173 LPROCFS_CNTR_AVGMINMAX |
175 LPROCFS_TYPE_BYTES_FULL = LPROCFS_TYPE_BYTES |
176 LPROCFS_CNTR_AVGMINMAX |
179 #define LC_MIN_INIT ((~(__u64)0) >> 1)
181 struct lprocfs_counter_header {
182 unsigned int lc_config;
183 const char *lc_name; /* must be static */
184 const char *lc_units; /* must be static */
187 struct lprocfs_counter {
193 * Every counter has lc_array_sum[0], while lc_array_sum[1] is only
194 * for irq context counter, i.e. stats with
195 * LPROCFS_STATS_FLAG_IRQ_SAFE flag, its counter need
198 __s64 lc_array_sum[1];
200 #define lc_sum lc_array_sum[0]
201 #define lc_sum_irq lc_array_sum[1]
203 struct lprocfs_percpu {
204 struct lprocfs_counter lp_cntr[0];
207 enum lprocfs_stats_lock_ops {
208 LPROCFS_GET_NUM_CPU = 0x0001, /* number allocated per-CPU stats */
209 LPROCFS_GET_SMP_ID = 0x0002, /* current stat to be updated */
212 enum lprocfs_stats_flags {
213 LPROCFS_STATS_FLAG_NONE = 0x0000, /* per cpu counter */
214 LPROCFS_STATS_FLAG_NOPERCPU = 0x0001, /* stats have no percpu
215 * area and need locking */
216 LPROCFS_STATS_FLAG_IRQ_SAFE = 0x0002, /* alloc need irq safe */
219 enum lprocfs_fields_flags {
220 LPROCFS_FIELDS_FLAGS_CONFIG = 0x0001,
221 LPROCFS_FIELDS_FLAGS_SUM = 0x0002,
222 LPROCFS_FIELDS_FLAGS_MIN = 0x0003,
223 LPROCFS_FIELDS_FLAGS_MAX = 0x0004,
224 LPROCFS_FIELDS_FLAGS_AVG = 0x0005,
225 LPROCFS_FIELDS_FLAGS_SUMSQUARE = 0x0006,
226 LPROCFS_FIELDS_FLAGS_COUNT = 0x0007,
229 struct lprocfs_stats {
231 unsigned short ls_num;
232 /* 1 + the biggest cpu # whose ls_percpu slot has been allocated */
233 unsigned short ls_biggest_alloc_num;
234 enum lprocfs_stats_flags ls_flags;
236 /* Lock used when there are no percpu stats areas; For percpu stats,
237 * it is used to protect ls_biggest_alloc_num change */
240 /* has ls_num of counter headers */
241 struct lprocfs_counter_header *ls_cnt_header;
242 struct lprocfs_percpu *ls_percpu[0];
245 #define OPC_RANGE(seg) (seg ## _LAST_OPC - seg ## _FIRST_OPC)
247 /* Pack all opcodes down into a single monotonically increasing index */
248 static inline int opcode_offset(__u32 opc) {
249 if (opc < OST_LAST_OPC) {
251 return (opc - OST_FIRST_OPC);
252 } else if (opc < MDS_LAST_OPC) {
254 return (opc - MDS_FIRST_OPC +
256 } else if (opc < LDLM_LAST_OPC) {
258 return (opc - LDLM_FIRST_OPC +
261 } else if (opc < MGS_LAST_OPC) {
263 return (opc - MGS_FIRST_OPC +
267 } else if (opc < OBD_LAST_OPC) {
269 return (opc - OBD_FIRST_OPC +
274 } else if (opc < LLOG_LAST_OPC) {
276 return (opc - LLOG_FIRST_OPC +
282 } else if (opc < QUOTA_LAST_OPC) {
284 return (opc - QUOTA_FIRST_OPC +
291 } else if (opc < SEQ_LAST_OPC) {
293 return (opc - SEQ_FIRST_OPC +
301 } else if (opc < SEC_LAST_OPC) {
303 return (opc - SEC_FIRST_OPC +
312 } else if (opc < FLD_LAST_OPC) {
314 return (opc - FLD_FIRST_OPC +
324 #ifdef HAVE_SERVER_SUPPORT
325 } else if (opc < OUT_UPDATE_LAST_OPC) {
327 return (opc - OUT_UPDATE_FIRST_OPC +
338 } else if (opc < LFSCK_LAST_OPC) {
340 return (opc - LFSCK_FIRST_OPC +
341 OPC_RANGE(OUT_UPDATE) +
352 #endif /* HAVE_SERVER_SUPPORT */
359 #define LUSTRE_MAX_OPCODES_CLIENT (OPC_RANGE(OST) + \
370 #ifdef HAVE_SERVER_SUPPORT
371 #define LUSTRE_MAX_OPCODES (LUSTRE_MAX_OPCODES_CLIENT + \
372 OPC_RANGE(OUT_UPDATE) + \
375 #define LUSTRE_MAX_OPCODES LUSTRE_MAX_OPCODES_CLIENT
378 #define EXTRA_MAX_OPCODES ((PTLRPC_LAST_CNTR - PTLRPC_FIRST_CNTR) + \
382 PTLRPC_REQWAIT_CNTR = 0,
383 PTLRPC_REQQDEPTH_CNTR,
384 PTLRPC_REQACTIVE_CNTR,
386 PTLRPC_REQBUF_AVAIL_CNTR,
390 #define PTLRPC_FIRST_CNTR PTLRPC_REQWAIT_CNTR
392 enum lprocfs_extra_opc {
393 LDLM_GLIMPSE_ENQUEUE = 0,
411 #define EXTRA_FIRST_OPC LDLM_GLIMPSE_ENQUEUE
413 extern struct proc_dir_entry *proc_lustre_root;
414 extern struct dentry *debugfs_lustre_root;
415 extern struct kset *lustre_kset;
418 struct obd_histogram;
420 #define JOBSTATS_JOBID_VAR_MAX_LEN 20
421 #define JOBSTATS_DISABLE "disable"
422 #define JOBSTATS_PROCNAME_UID "procname_uid"
423 #define JOBSTATS_NODELOCAL "nodelocal"
424 #define JOBSTATS_SESSION "session"
426 typedef void (*cntr_init_callback)(struct lprocfs_stats *stats,
427 unsigned int offset);
429 struct obd_job_stats {
430 struct cfs_hash *ojs_hash; /* hash of jobids */
431 struct list_head ojs_list; /* list of job_stat structs */
432 rwlock_t ojs_lock; /* protect ojs_list/js_list */
433 ktime_t ojs_cleanup_interval;/* 1/2 expiry seconds */
434 ktime_t ojs_cleanup_last;/* previous cleanup time */
435 cntr_init_callback ojs_cntr_init_fn;/* lprocfs_stats initializer */
436 unsigned short ojs_cntr_num; /* number of stats in struct */
437 bool ojs_cleaning; /* currently expiring stats */
440 #ifdef CONFIG_PROC_FS
442 int lprocfs_stats_alloc_one(struct lprocfs_stats *stats,
444 int lprocfs_stats_lock(struct lprocfs_stats *stats,
445 enum lprocfs_stats_lock_ops opc,
446 unsigned long *flags);
447 void lprocfs_stats_unlock(struct lprocfs_stats *stats,
448 enum lprocfs_stats_lock_ops opc,
449 unsigned long *flags);
451 static inline unsigned int
452 lprocfs_stats_counter_size(struct lprocfs_stats *stats)
454 unsigned int percpusize;
456 percpusize = offsetof(struct lprocfs_percpu, lp_cntr[stats->ls_num]);
458 /* irq safe stats need lc_array_sum[1] */
459 if ((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
460 percpusize += stats->ls_num * sizeof(__s64);
462 if ((stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) == 0)
463 percpusize = L1_CACHE_ALIGN(percpusize);
468 static inline struct lprocfs_counter *
469 lprocfs_stats_counter_get(struct lprocfs_stats *stats, unsigned int cpuid,
472 struct lprocfs_counter *cntr;
474 cntr = &stats->ls_percpu[cpuid]->lp_cntr[index];
476 if ((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
477 cntr = (void *)cntr + index * sizeof(__s64);
482 /* Two optimized LPROCFS counter increment functions are provided:
483 * lprocfs_counter_incr(cntr, value) - optimized for by-one counters
484 * lprocfs_counter_add(cntr) - use for multi-valued counters
485 * Counter data layout allows config flag, counter lock and the
486 * count itself to reside within a single cache line.
489 extern void lprocfs_counter_add(struct lprocfs_stats *stats, int idx,
491 extern void lprocfs_counter_sub(struct lprocfs_stats *stats, int idx,
494 #define lprocfs_counter_incr(stats, idx) \
495 lprocfs_counter_add(stats, idx, 1)
496 #define lprocfs_counter_decr(stats, idx) \
497 lprocfs_counter_sub(stats, idx, 1)
499 extern __s64 lprocfs_read_helper(struct lprocfs_counter *lc,
500 struct lprocfs_counter_header *header,
501 enum lprocfs_stats_flags flags,
502 enum lprocfs_fields_flags field);
503 u64 lprocfs_stats_collector(struct lprocfs_stats *stats, int idx,
504 enum lprocfs_fields_flags field);
506 extern struct lprocfs_stats *
507 lprocfs_alloc_stats(unsigned int num, enum lprocfs_stats_flags flags);
508 extern void lprocfs_clear_stats(struct lprocfs_stats *stats);
509 extern void lprocfs_free_stats(struct lprocfs_stats **stats);
510 extern void lprocfs_init_ldlm_stats(struct lprocfs_stats *ldlm_stats);
511 extern int lprocfs_alloc_obd_stats(struct obd_device *obd,
512 unsigned int num_stats);
513 extern int lprocfs_alloc_md_stats(struct obd_device *obd,
514 unsigned int num_private_stats);
515 extern void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
516 unsigned conf, const char *name,
518 extern void lprocfs_free_obd_stats(struct obd_device *obd);
519 extern void lprocfs_free_md_stats(struct obd_device *obd);
522 extern int lprocfs_add_clear_entry(struct obd_device *obd,
523 struct proc_dir_entry *entry);
524 #ifdef HAVE_SERVER_SUPPORT
525 extern int lprocfs_exp_setup(struct obd_export *exp, lnet_nid_t *peer_nid);
526 extern int lprocfs_exp_cleanup(struct obd_export *exp);
527 struct dentry *ldebugfs_add_symlink(const char *name, const char *target,
528 const char *format, ...);
530 static inline int lprocfs_exp_cleanup(struct obd_export *exp)
533 extern struct proc_dir_entry *
534 lprocfs_add_simple(struct proc_dir_entry *root, char *name,
535 void *data, const struct proc_ops *ops);
536 extern struct proc_dir_entry *
537 lprocfs_add_symlink(const char *name, struct proc_dir_entry *parent,
538 const char *format, ...);
539 extern void lprocfs_free_per_client_stats(struct obd_device *obd);
540 #ifdef HAVE_SERVER_SUPPORT
542 lprocfs_nid_stats_clear_seq_write(struct file *file, const char __user *buffer,
543 size_t count, loff_t *off);
544 extern int lprocfs_nid_stats_clear_seq_show(struct seq_file *file, void *data);
546 extern int lprocfs_register_stats(struct proc_dir_entry *root, const char *name,
547 struct lprocfs_stats *stats);
548 extern const struct file_operations ldebugfs_stats_seq_fops;
550 /* lprocfs_status.c */
551 extern void ldebugfs_add_vars(struct dentry *parent, struct ldebugfs_vars *var,
553 extern struct dentry *ldebugfs_register(const char *name,
554 struct dentry *parent,
555 struct ldebugfs_vars *list,
557 extern int lprocfs_add_vars(struct proc_dir_entry *root,
558 struct lprocfs_vars *var, void *data);
560 extern struct proc_dir_entry *
561 lprocfs_register(const char *name, struct proc_dir_entry *parent,
562 struct lprocfs_vars *list, void *data);
564 extern void lprocfs_remove(struct proc_dir_entry **root);
565 extern void lprocfs_remove_proc_entry(const char *name,
566 struct proc_dir_entry *parent);
567 extern int lprocfs_obd_setup(struct obd_device *obd, bool uuid_only);
568 extern int lprocfs_obd_cleanup(struct obd_device *obd);
570 extern int lprocfs_seq_create(struct proc_dir_entry *parent, const char *name,
571 mode_t mode, const struct proc_ops *seq_fops,
573 extern int lprocfs_obd_seq_create(struct obd_device *obd, const char *name,
574 mode_t mode, const struct proc_ops *seq_fops,
576 extern void lprocfs_stats_header(struct seq_file *seq, ktime_t now,
577 ktime_t ts_init, int width, const char *colon,
580 /* Generic callbacks */
581 extern int lprocfs_uuid_seq_show(struct seq_file *m, void *data);
582 extern int lprocfs_server_uuid_seq_show(struct seq_file *m, void *data);
583 ssize_t conn_uuid_show(struct kobject *kobj, struct attribute *attr, char *buf);
584 extern int lprocfs_import_seq_show(struct seq_file *m, void *data);
585 extern int lprocfs_state_seq_show(struct seq_file *m, void *data);
586 extern int lprocfs_connect_flags_seq_show(struct seq_file *m, void *data);
587 #ifdef HAVE_SERVER_SUPPORT
588 ssize_t num_exports_show(struct kobject *kobj, struct attribute *attr,
591 struct adaptive_timeout;
592 extern int lprocfs_at_hist_helper(struct seq_file *m,
593 struct adaptive_timeout *at);
594 extern int lprocfs_timeouts_seq_show(struct seq_file *m, void *data);
596 lprocfs_timeouts_seq_write(struct file *file, const char __user *buffer,
597 size_t count, loff_t *off);
598 #ifdef HAVE_SERVER_SUPPORT
600 lprocfs_evict_client_seq_write(struct file *file, const char __user *buffer,
601 size_t count, loff_t *off);
603 ssize_t ping_store(struct kobject *kobj, struct attribute *attr,
604 const char *buffer, size_t count);
605 ssize_t ping_show(struct kobject *kobj, struct attribute *attr,
609 ldebugfs_import_seq_write(struct file *file, const char __user *buffer,
610 size_t count, loff_t *off);
611 static inline ssize_t
612 lprocfs_import_seq_write(struct file *file, const char __user *buffer,
613 size_t count, loff_t *off)
615 return ldebugfs_import_seq_write(file, buffer, count, off);
618 extern int lprocfs_pinger_recov_seq_show(struct seq_file *m, void *data);
620 lprocfs_pinger_recov_seq_write(struct file *file, const char __user *buffer,
621 size_t count, loff_t *off);
623 int string_to_size(u64 *size, const char *buffer, size_t count);
624 int sysfs_memparse(const char *buffer, size_t count, u64 *val,
625 const char *defunit);
626 char *lprocfs_strnstr(const char *s1, const char *s2, size_t len);
627 char *lprocfs_find_named_value(const char *buffer, const char *name,
629 void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value);
630 void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value);
631 void lprocfs_oh_clear(struct obd_histogram *oh);
632 unsigned long lprocfs_oh_sum(struct obd_histogram *oh);
634 void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
635 struct lprocfs_counter *cnt);
637 #ifdef HAVE_SERVER_SUPPORT
638 /* lprocfs_status.c: recovery status */
639 int lprocfs_recovery_status_seq_show(struct seq_file *m, void *data);
641 /* lprocfs_status.c: hash statistics */
642 int lprocfs_hash_seq_show(struct seq_file *m, void *data);
644 /* lprocfs_status.c: IR factor */
645 ssize_t ir_factor_show(struct kobject *kobj, struct attribute *attr,
647 ssize_t ir_factor_store(struct kobject *kobj, struct attribute *attr,
648 const char *buffer, size_t count);
651 /* lprocfs_status.c: dump pages on cksum error */
652 int lprocfs_checksum_dump_seq_show(struct seq_file *m, void *data);
654 lprocfs_checksum_dump_seq_write(struct file *file, const char __user *buffer,
655 size_t count, loff_t *off);
657 extern int lprocfs_single_release(struct inode *, struct file *);
658 extern int lprocfs_seq_release(struct inode *, struct file *);
660 /* You must use these macros when you want to refer to
661 * the import in a client obd_device for a lprocfs entry
662 * Note that it is not safe to 'goto', 'return' or 'break'
663 * out of the body of this statement. It *IS* safe to
664 * 'goto' the a label inside the statement, or to 'continue'
665 * to get out of the statement.
668 #define with_imp_locked_nested(__obd, __imp, __rc, __nest) \
669 for (down_read_nested(&(__obd)->u.cli.cl_sem, __nest), \
670 __imp = (__obd)->u.cli.cl_import, \
671 __rc = __imp ? 0 : -ENODEV; \
672 __imp ? 1 : (up_read(&(__obd)->u.cli.cl_sem), 0); \
675 #define with_imp_locked(__obd, __imp, __rc) \
676 with_imp_locked_nested(__obd, __imp, __rc, 0)
678 /* write the name##_seq_show function, call LDEBUGFS_SEQ_FOPS_RO for read-only
679 * debugfs entries; otherwise, you will define name##_seq_write function also
680 * for a read-write debugfs entry, and then call LDEBUGFS_SEQ_FOPS instead.
681 * Finally, call debugfs_create_file(filename, 0444, obd, data, &name#_fops);
683 #define __LDEBUGFS_SEQ_FOPS(name, custom_seq_write) \
684 static int name##_single_open(struct inode *inode, struct file *file) \
686 return single_open(file, name##_seq_show, inode->i_private); \
688 static const struct file_operations name##_fops = { \
689 .owner = THIS_MODULE, \
690 .open = name##_single_open, \
692 .write = custom_seq_write, \
693 .llseek = seq_lseek, \
694 .release = single_release, \
697 #define LDEBUGFS_SEQ_FOPS_RO(name) __LDEBUGFS_SEQ_FOPS(name, NULL)
698 #define LDEBUGFS_SEQ_FOPS(name) __LDEBUGFS_SEQ_FOPS(name, \
701 #define LDEBUGFS_SEQ_FOPS_RO_TYPE(name, type) \
702 static int name##_##type##_seq_show(struct seq_file *m, void *v)\
706 return lprocfs_##type##_seq_show(m, m->private); \
708 LDEBUGFS_SEQ_FOPS_RO(name##_##type)
710 #define LDEBUGFS_SEQ_FOPS_RW_TYPE(name, type) \
711 static int name##_##type##_seq_show(struct seq_file *m, void *v)\
715 return lprocfs_##type##_seq_show(m, m->private); \
717 static ssize_t name##_##type##_seq_write(struct file *file, \
718 const char __user *buffer, size_t count, \
721 struct seq_file *seq = file->private_data; \
725 return ldebugfs_##type##_seq_write(file, buffer, count, \
728 LDEBUGFS_SEQ_FOPS(name##_##type);
730 #define LDEBUGFS_FOPS_WR_ONLY(name, type) \
731 static ssize_t name##_##type##_write(struct file *file, \
732 const char __user *buffer, size_t count, \
735 return ldebugfs_##type##_seq_write(file, buffer, count, \
738 static int name##_##type##_open(struct inode *inode, \
741 return single_open(file, NULL, inode->i_private); \
743 static const struct file_operations name##_##type##_fops = { \
744 .open = name##_##type##_open, \
745 .write = name##_##type##_write, \
746 .release = single_release, \
749 /* write the name##_seq_show function, call LPROC_SEQ_FOPS_RO for read-only
750 * proc entries; otherwise, you will define name##_seq_write function also for
751 * a read-write proc entry, and then call LPROC_SEQ_FOPS instead. Finally,
752 * call ldebugfs_obd_seq_create(obd, filename, 0444, &name#_fops, data);
754 #define __LPROC_SEQ_FOPS(name, custom_seq_write) \
755 static int name##_single_open(struct inode *inode, struct file *file) \
757 return single_open(file, name##_seq_show, \
758 inode->i_private ? inode->i_private : \
761 static const struct proc_ops name##_fops = { \
762 PROC_OWNER(THIS_MODULE) \
763 .proc_open = name##_single_open, \
764 .proc_read = seq_read, \
765 .proc_write = custom_seq_write, \
766 .proc_lseek = seq_lseek, \
767 .proc_release = lprocfs_single_release, \
770 #define LPROC_SEQ_FOPS_RO(name) __LPROC_SEQ_FOPS(name, NULL)
771 #define LPROC_SEQ_FOPS(name) __LPROC_SEQ_FOPS(name, name##_seq_write)
773 #define LPROC_SEQ_FOPS_RO_TYPE(name, type) \
774 static int name##_##type##_seq_show(struct seq_file *m, void *v)\
776 return lprocfs_##type##_seq_show(m, m->private); \
778 LPROC_SEQ_FOPS_RO(name##_##type)
780 #define LPROC_SEQ_FOPS_RW_TYPE(name, type) \
781 static int name##_##type##_seq_show(struct seq_file *m, void *v)\
783 return lprocfs_##type##_seq_show(m, m->private); \
785 static ssize_t name##_##type##_seq_write(struct file *file, \
786 const char __user *buffer, size_t count, \
789 struct seq_file *seq = file->private_data; \
790 return lprocfs_##type##_seq_write(file, buffer, \
791 count, seq->private); \
793 LPROC_SEQ_FOPS(name##_##type);
795 #define LPROC_SEQ_FOPS_WR_ONLY(name, type) \
796 static ssize_t name##_##type##_write(struct file *file, \
797 const char __user *buffer, size_t count, \
800 return lprocfs_##type##_seq_write(file, buffer, count, off);\
802 static int name##_##type##_open(struct inode *inode, struct file *file)\
804 return single_open(file, NULL, \
805 inode->i_private ? inode->i_private : \
808 static const struct proc_ops name##_##type##_fops = { \
809 .proc_open = name##_##type##_open, \
810 .proc_write = name##_##type##_write, \
811 .proc_release = lprocfs_single_release, \
815 struct attribute attr;
816 ssize_t (*show)(struct kobject *kobj, struct attribute *attr,
818 ssize_t (*store)(struct kobject *kobj, struct attribute *attr,
819 const char *buf, size_t len);
822 #define LUSTRE_ATTR(name, mode, show, store) \
823 static struct lustre_attr lustre_attr_##name = __ATTR(name, mode, show, store)
825 #define LUSTRE_WO_ATTR(name) LUSTRE_ATTR(name, 0200, NULL, name##_store)
826 #define LUSTRE_RO_ATTR(name) LUSTRE_ATTR(name, 0444, name##_show, NULL)
827 #define LUSTRE_RW_ATTR(name) LUSTRE_ATTR(name, 0644, name##_show, name##_store)
829 ssize_t lustre_attr_show(struct kobject *kobj, struct attribute *attr,
831 ssize_t lustre_attr_store(struct kobject *kobj, struct attribute *attr,
832 const char *buf, size_t len);
834 extern const struct sysfs_ops lustre_sysfs_ops;
837 struct ptlrpc_request;
838 extern void target_print_req(void *seq_file, struct ptlrpc_request *req);
840 #ifdef HAVE_SERVER_SUPPORT
841 /* lprocfs_jobstats.c */
842 int lprocfs_job_stats_log(struct obd_device *obd, char *jobid,
843 int event, long amount);
844 void lprocfs_job_stats_fini(struct obd_device *obd);
845 int lprocfs_job_stats_init(struct obd_device *obd, int cntr_num,
846 cntr_init_callback fn);
847 ssize_t job_cleanup_interval_show(struct kobject *kobj, struct attribute *attr,
849 ssize_t job_cleanup_interval_store(struct kobject *kobj,
850 struct attribute *attr,
851 const char *buffer, size_t count);
852 /* lproc_status_server.c */
853 ssize_t recovery_time_soft_show(struct kobject *kobj, struct attribute *attr,
855 ssize_t recovery_time_soft_store(struct kobject *kobj,
856 struct attribute *attr,
857 const char *buffer, size_t count);
858 ssize_t recovery_time_hard_show(struct kobject *kobj, struct attribute *attr,
860 ssize_t recovery_time_hard_store(struct kobject *kobj,
861 struct attribute *attr,
862 const char *buffer, size_t count);
863 ssize_t instance_show(struct kobject *kobj, struct attribute *attr,
867 int lprocfs_obd_max_pages_per_rpc_seq_show(struct seq_file *m, void *data);
868 ssize_t lprocfs_obd_max_pages_per_rpc_seq_write(struct file *file,
869 const char __user *buffer,
870 size_t count, loff_t *off);
871 ssize_t short_io_bytes_show(struct kobject *kobj, struct attribute *attr,
873 ssize_t short_io_bytes_store(struct kobject *kobj, struct attribute *attr,
874 const char *buffer, size_t count);
876 struct root_squash_info;
877 int lprocfs_wr_root_squash(const char __user *buffer, unsigned long count,
878 struct root_squash_info *squash, char *name);
879 int lprocfs_wr_nosquash_nids(const char __user *buffer, unsigned long count,
880 struct root_squash_info *squash, char *name);
882 #else /* !CONFIG_PROC_FS */
884 #define proc_lustre_root NULL
886 static inline void lprocfs_counter_add(struct lprocfs_stats *stats,
887 int index, long amount)
889 static inline void lprocfs_counter_incr(struct lprocfs_stats *stats,
892 static inline void lprocfs_counter_sub(struct lprocfs_stats *stats,
893 int index, long amount)
895 static inline void lprocfs_counter_decr(struct lprocfs_stats *stats,
898 static inline void lprocfs_counter_init(struct lprocfs_stats *stats,
899 int index, unsigned conf,
900 const char *name, const char *units)
903 static inline __u64 lc_read_helper(struct lprocfs_counter *lc,
904 enum lprocfs_fields_flags field)
907 /* NB: we return !NULL to satisfy error checker */
908 static inline struct lprocfs_stats *
909 lprocfs_alloc_stats(unsigned int num, enum lprocfs_stats_flags flags)
910 { return (struct lprocfs_stats *)1; }
911 static inline void lprocfs_clear_stats(struct lprocfs_stats *stats)
913 static inline void lprocfs_free_stats(struct lprocfs_stats **stats)
915 static inline int lprocfs_register_stats(struct proc_dir_entry *root,
917 struct lprocfs_stats *stats)
919 static inline void lprocfs_init_ldlm_stats(struct lprocfs_stats *ldlm_stats)
921 static inline int lprocfs_alloc_obd_stats(struct obd_device *obd,
922 unsigned int num_stats)
924 static inline int lprocfs_alloc_md_stats(struct obd_device *obd,
925 unsigned int num_private_stats)
927 static inline void lprocfs_free_obd_stats(struct obd_device *obd)
929 static inline void lprocfs_free_md_stats(struct obd_device *obd)
933 static inline int lprocfs_add_clear_entry(struct obd_export *exp)
935 static inline void lprocfs_free_per_client_stats(struct obd_device *obd)
937 #ifdef HAVE_SERVER_SUPPORT
939 ssize_t lprocfs_nid_stats_seq_write(struct file *file,
940 const char __user *buffer,
941 size_t count, loff_t *off)
944 int lprocfs_nid_stats_clear_seq_show(struct seq_file *m, void *data)
946 static inline int lprocfs_exp_setup(struct obd_export *exp,lnet_nid_t *peer_nid)
949 static inline int lprocfs_exp_cleanup(struct obd_export *exp)
951 static inline struct proc_dir_entry *
952 lprocfs_add_simple(struct proc_dir_entry *root, char *name,
953 void *data, const struct file_operations *fops)
955 static inline struct proc_dir_entry *
956 lprocfs_add_symlink(const char *name, struct proc_dir_entry *parent,
957 const char *format, ...)
959 static inline int lprocfs_add_vars(struct proc_dir_entry *root,
960 struct lprocfs_vars *var, void *data)
962 static inline struct proc_dir_entry *
963 lprocfs_register(const char *name, struct proc_dir_entry *parent,
964 struct lprocfs_vars *list, void *data)
966 static inline void lprocfs_remove(struct proc_dir_entry **root)
968 static inline void lprocfs_remove_proc_entry(const char *name,
969 struct proc_dir_entry *parent)
971 static inline int lprocfs_obd_setup(struct obd_device *obd, bool uuid_only)
973 static inline int lprocfs_obd_cleanup(struct obd_device *obd)
975 static inline int lprocfs_uuid_seq_show(struct seq_file *m, void *data)
977 static inline int lprocfs_server_seq_show(struct seq_file *m, void *data)
979 static inline int lprocfs_import_seq_show(struct seq_file *m, void *data)
981 static inline int lprocfs_state_seq_show(struct seq_file *m, void *data)
983 static inline int lprocfs_connect_flags_seq_show(struct seq_file *m, void *data)
985 #ifdef HAVE_SERVER_SUPPORT
986 static inline int lprocfs_num_exports_seq_show(struct seq_file *m, void *data)
989 struct adaptive_timeout;
990 static inline int lprocfs_at_hist_helper(struct seq_file *m,
991 struct adaptive_timeout *at)
993 static inline int lprocfs_timeouts_seq_show(struct seq_file *m, void *data)
995 static inline ssize_t
996 lprocfs_timeouts_seq_write(struct file *file, const char __user *buffer,
997 size_t count, loff_t *off)
999 #ifdef HAVE_SERVER_SUPPORT
1000 static inline ssize_t
1001 lprocfs_evict_client_seq_write(struct file *file, const char __user *buffer,
1002 size_t count, loff_t *off)
1005 static inline ssize_t
1006 lprocfs_ping_seq_write(struct file *file, const char __user *buffer,
1007 size_t count, loff_t *off)
1009 static inline ssize_t
1010 ldebugfs_import_seq_write(struct file *file, const char __user *buffer,
1011 size_t count, loff_t *off)
1013 static inline ssize_t
1014 lprocfs_import_seq_write(struct file *file, const char __user *buffer,
1015 size_t count, loff_t *off)
1018 lprocfs_pinger_recov_seq_show(struct seq_file *m, void *data)
1020 static inline ssize_t
1021 lprocfs_pinger_recov_seq_write(struct file *file, const char __user *buffer,
1022 size_t count, loff_t *off)
1025 /* Statfs helpers */
1027 int lprocfs_blksize_seq_show(struct seq_file *m, void *data)
1030 int lprocfs_kbytestotal_seq_show(struct seq_file *m, void *data)
1033 int lprocfs_kbytesfree_seq_show(struct seq_file *m, void *data)
1036 int lprocfs_kbytesavail_seq_show(struct seq_file *m, void *data)
1039 int lprocfs_filestotal_seq_show(struct seq_file *m, void *data)
1042 int lprocfs_filesfree_seq_show(struct seq_file *m, void *data)
1045 void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value)
1048 void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value)
1051 void lprocfs_oh_clear(struct obd_histogram *oh)
1054 unsigned long lprocfs_oh_sum(struct obd_histogram *oh)
1057 void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
1058 struct lprocfs_counter *cnt)
1061 u64 lprocfs_stats_collector(struct lprocfs_stats *stats, int idx,
1062 enum lprocfs_fields_flags field)
1063 { return (__u64)0; }
1065 #define LPROC_SEQ_FOPS_RO(name)
1066 #define LPROC_SEQ_FOPS(name)
1067 #define LPROC_SEQ_FOPS_RO_TYPE(name, type)
1068 #define LPROC_SEQ_FOPS_RW_TYPE(name, type)
1069 #define LPROC_SEQ_FOPS_WR_ONLY(name, type)
1071 /* lprocfs_jobstats.c */
1073 int lprocfs_job_stats_log(struct obd_device *obd, char *jobid, int event,
1077 void lprocfs_job_stats_fini(struct obd_device *obd)
1080 int lprocfs_job_stats_init(struct obd_device *obd, int cntr_num,
1081 cntr_init_callback fn)
1085 /* lproc_ptlrpc.c */
1086 #define target_print_req NULL
1088 #endif /* CONFIG_PROC_FS */
1090 #endif /* LPROCFS_STATUS_H */