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.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2012, Whamcloud, Inc.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 #define DEBUG_SUBSYSTEM S_CLASS
39 # include <liblustre.h>
42 #include <obd_support.h>
44 #include <lprocfs_status.h>
45 #include <lustre/lustre_idl.h>
46 #include <lustre_net.h>
47 #include <obd_class.h>
48 #include "ptlrpc_internal.h"
51 struct ll_rpc_opcode {
54 } ll_rpc_opcode_table[LUSTRE_MAX_OPCODES] = {
55 { OST_REPLY, "ost_reply" },
56 { OST_GETATTR, "ost_getattr" },
57 { OST_SETATTR, "ost_setattr" },
58 { OST_READ, "ost_read" },
59 { OST_WRITE, "ost_write" },
60 { OST_CREATE , "ost_create" },
61 { OST_DESTROY, "ost_destroy" },
62 { OST_GET_INFO, "ost_get_info" },
63 { OST_CONNECT, "ost_connect" },
64 { OST_DISCONNECT, "ost_disconnect" },
65 { OST_PUNCH, "ost_punch" },
66 { OST_OPEN, "ost_open" },
67 { OST_CLOSE, "ost_close" },
68 { OST_STATFS, "ost_statfs" },
69 { 14, NULL }, /* formerly OST_SAN_READ */
70 { 15, NULL }, /* formerly OST_SAN_WRITE */
71 { OST_SYNC, "ost_sync" },
72 { OST_SET_INFO, "ost_set_info" },
73 { OST_QUOTACHECK, "ost_quotacheck" },
74 { OST_QUOTACTL, "ost_quotactl" },
75 { OST_QUOTA_ADJUST_QUNIT, "ost_quota_adjust_qunit" },
76 { MDS_GETATTR, "mds_getattr" },
77 { MDS_GETATTR_NAME, "mds_getattr_lock" },
78 { MDS_CLOSE, "mds_close" },
79 { MDS_REINT, "mds_reint" },
80 { MDS_READPAGE, "mds_readpage" },
81 { MDS_CONNECT, "mds_connect" },
82 { MDS_DISCONNECT, "mds_disconnect" },
83 { MDS_GETSTATUS, "mds_getstatus" },
84 { MDS_STATFS, "mds_statfs" },
85 { MDS_PIN, "mds_pin" },
86 { MDS_UNPIN, "mds_unpin" },
87 { MDS_SYNC, "mds_sync" },
88 { MDS_DONE_WRITING, "mds_done_writing" },
89 { MDS_SET_INFO, "mds_set_info" },
90 { MDS_QUOTACHECK, "mds_quotacheck" },
91 { MDS_QUOTACTL, "mds_quotactl" },
92 { MDS_GETXATTR, "mds_getxattr" },
93 { MDS_SETXATTR, "mds_setxattr" },
94 { MDS_WRITEPAGE, "mds_writepage" },
95 { MDS_IS_SUBDIR, "mds_is_subdir" },
96 { MDS_GET_INFO, "mds_get_info" },
97 { LDLM_ENQUEUE, "ldlm_enqueue" },
98 { LDLM_CONVERT, "ldlm_convert" },
99 { LDLM_CANCEL, "ldlm_cancel" },
100 { LDLM_BL_CALLBACK, "ldlm_bl_callback" },
101 { LDLM_CP_CALLBACK, "ldlm_cp_callback" },
102 { LDLM_GL_CALLBACK, "ldlm_gl_callback" },
103 { LDLM_SET_INFO, "ldlm_set_info" },
104 { MGS_CONNECT, "mgs_connect" },
105 { MGS_DISCONNECT, "mgs_disconnect" },
106 { MGS_EXCEPTION, "mgs_exception" },
107 { MGS_TARGET_REG, "mgs_target_reg" },
108 { MGS_TARGET_DEL, "mgs_target_del" },
109 { MGS_SET_INFO, "mgs_set_info" },
110 { MGS_CONFIG_READ, "mgs_config_read" },
111 { OBD_PING, "obd_ping" },
112 { OBD_LOG_CANCEL, "llog_origin_handle_cancel" },
113 { OBD_QC_CALLBACK, "obd_quota_callback" },
114 { LLOG_ORIGIN_HANDLE_CREATE, "llog_origin_handle_create" },
115 { LLOG_ORIGIN_HANDLE_NEXT_BLOCK, "llog_origin_handle_next_block" },
116 { LLOG_ORIGIN_HANDLE_READ_HEADER,"llog_origin_handle_read_header" },
117 { LLOG_ORIGIN_HANDLE_WRITE_REC, "llog_origin_handle_write_rec" },
118 { LLOG_ORIGIN_HANDLE_CLOSE, "llog_origin_handle_close" },
119 { LLOG_ORIGIN_CONNECT, "llog_origin_connect" },
120 { LLOG_CATINFO, "llog_catinfo" },
121 { LLOG_ORIGIN_HANDLE_PREV_BLOCK, "llog_origin_handle_prev_block" },
122 { LLOG_ORIGIN_HANDLE_DESTROY, "llog_origin_handle_destroy" },
123 { QUOTA_DQACQ, "quota_acquire" },
124 { QUOTA_DQREL, "quota_release" },
125 { SEQ_QUERY, "seq_query" },
126 { SEC_CTX_INIT, "sec_ctx_init" },
127 { SEC_CTX_INIT_CONT,"sec_ctx_init_cont" },
128 { SEC_CTX_FINI, "sec_ctx_fini" },
129 { FLD_QUERY, "fld_query" }
135 } ll_eopcode_table[EXTRA_LAST_OPC] = {
136 { LDLM_GLIMPSE_ENQUEUE, "ldlm_glimpse_enqueue" },
137 { LDLM_PLAIN_ENQUEUE, "ldlm_plain_enqueue" },
138 { LDLM_EXTENT_ENQUEUE, "ldlm_extent_enqueue" },
139 { LDLM_FLOCK_ENQUEUE, "ldlm_flock_enqueue" },
140 { LDLM_IBITS_ENQUEUE, "ldlm_ibits_enqueue" },
141 { MDS_REINT_SETATTR, "mds_reint_setattr" },
142 { MDS_REINT_CREATE, "mds_reint_create" },
143 { MDS_REINT_LINK, "mds_reint_link" },
144 { MDS_REINT_UNLINK, "mds_reint_unlink" },
145 { MDS_REINT_RENAME, "mds_reint_rename" },
146 { MDS_REINT_OPEN, "mds_reint_open" },
147 { MDS_REINT_SETXATTR, "mds_reint_setxattr" },
148 { BRW_READ_BYTES, "read_bytes" },
149 { BRW_WRITE_BYTES, "write_bytes" },
152 const char *ll_opcode2str(__u32 opcode)
154 /* When one of the assertions below fail, chances are that:
155 * 1) A new opcode was added in include/lustre/lustre_idl.h,
156 * but is missing from the table above.
157 * or 2) The opcode space was renumbered or rearranged,
158 * and the opcode_offset() function in
159 * ptlrpc_internal.h needs to be modified.
161 __u32 offset = opcode_offset(opcode);
162 LASSERTF(offset < LUSTRE_MAX_OPCODES,
163 "offset %u >= LUSTRE_MAX_OPCODES %u\n",
164 offset, LUSTRE_MAX_OPCODES);
165 LASSERTF(ll_rpc_opcode_table[offset].opcode == opcode,
166 "ll_rpc_opcode_table[%u].opcode %u != opcode %u\n",
167 offset, ll_rpc_opcode_table[offset].opcode, opcode);
168 return ll_rpc_opcode_table[offset].opname;
171 const char* ll_eopcode2str(__u32 opcode)
173 LASSERT(ll_eopcode_table[opcode].opcode == opcode);
174 return ll_eopcode_table[opcode].opname;
177 void ptlrpc_lprocfs_register(struct proc_dir_entry *root, char *dir,
178 char *name, struct proc_dir_entry **procroot_ret,
179 struct lprocfs_stats **stats_ret)
181 struct proc_dir_entry *svc_procroot;
182 struct lprocfs_stats *svc_stats;
184 unsigned int svc_counter_config = LPROCFS_CNTR_AVGMINMAX |
187 LASSERT(*procroot_ret == NULL);
188 LASSERT(*stats_ret == NULL);
190 svc_stats = lprocfs_alloc_stats(EXTRA_MAX_OPCODES+LUSTRE_MAX_OPCODES,0);
191 if (svc_stats == NULL)
195 svc_procroot = lprocfs_register(dir, root, NULL, NULL);
196 if (IS_ERR(svc_procroot)) {
197 lprocfs_free_stats(&svc_stats);
204 lprocfs_counter_init(svc_stats, PTLRPC_REQWAIT_CNTR,
205 svc_counter_config, "req_waittime", "usec");
206 lprocfs_counter_init(svc_stats, PTLRPC_REQQDEPTH_CNTR,
207 svc_counter_config, "req_qdepth", "reqs");
208 lprocfs_counter_init(svc_stats, PTLRPC_REQACTIVE_CNTR,
209 svc_counter_config, "req_active", "reqs");
210 lprocfs_counter_init(svc_stats, PTLRPC_TIMEOUT,
211 svc_counter_config, "req_timeout", "sec");
212 lprocfs_counter_init(svc_stats, PTLRPC_REQBUF_AVAIL_CNTR,
213 svc_counter_config, "reqbuf_avail", "bufs");
214 for (i = 0; i < EXTRA_LAST_OPC; i++) {
218 case BRW_WRITE_BYTES:
226 lprocfs_counter_init(svc_stats, PTLRPC_LAST_CNTR + i,
228 ll_eopcode2str(i), units);
230 for (i = 0; i < LUSTRE_MAX_OPCODES; i++) {
231 __u32 opcode = ll_rpc_opcode_table[i].opcode;
232 lprocfs_counter_init(svc_stats,
233 EXTRA_MAX_OPCODES + i, svc_counter_config,
234 ll_opcode2str(opcode), "usec");
237 rc = lprocfs_register_stats(svc_procroot, name, svc_stats);
240 lprocfs_remove(&svc_procroot);
241 lprocfs_free_stats(&svc_stats);
244 *procroot_ret = svc_procroot;
245 *stats_ret = svc_stats;
250 ptlrpc_lprocfs_read_req_history_len(char *page, char **start, off_t off,
251 int count, int *eof, void *data)
253 struct ptlrpc_service *svc = data;
256 return snprintf(page, count, "%d\n", svc->srv_n_history_rqbds);
260 ptlrpc_lprocfs_read_req_history_max(char *page, char **start, off_t off,
261 int count, int *eof, void *data)
263 struct ptlrpc_service *svc = data;
266 return snprintf(page, count, "%d\n", svc->srv_max_history_rqbds);
270 ptlrpc_lprocfs_write_req_history_max(struct file *file, const char *buffer,
271 unsigned long count, void *data)
273 struct ptlrpc_service *svc = data;
276 int rc = lprocfs_write_helper(buffer, count, &val);
284 /* This sanity check is more of an insanity check; we can still
285 * hose a kernel by allowing the request history to grow too
287 bufpages = (svc->srv_buf_size + CFS_PAGE_SIZE - 1) >> CFS_PAGE_SHIFT;
288 if (val > cfs_num_physpages/(2 * bufpages))
291 cfs_spin_lock(&svc->srv_lock);
292 svc->srv_max_history_rqbds = val;
293 cfs_spin_unlock(&svc->srv_lock);
299 ptlrpc_lprocfs_rd_threads_min(char *page, char **start, off_t off,
300 int count, int *eof, void *data)
302 struct ptlrpc_service *svc = data;
304 return snprintf(page, count, "%d\n", svc->srv_threads_min);
308 ptlrpc_lprocfs_wr_threads_min(struct file *file, const char *buffer,
309 unsigned long count, void *data)
311 struct ptlrpc_service *svc = data;
313 int rc = lprocfs_write_helper(buffer, count, &val);
321 if (val > svc->srv_threads_max)
324 cfs_spin_lock(&svc->srv_lock);
325 svc->srv_threads_min = val;
326 cfs_spin_unlock(&svc->srv_lock);
332 ptlrpc_lprocfs_rd_threads_started(char *page, char **start, off_t off,
333 int count, int *eof, void *data)
335 struct ptlrpc_service *svc = data;
337 return snprintf(page, count, "%d\n", svc->srv_threads_running);
341 ptlrpc_lprocfs_rd_threads_max(char *page, char **start, off_t off,
342 int count, int *eof, void *data)
344 struct ptlrpc_service *svc = data;
346 return snprintf(page, count, "%d\n", svc->srv_threads_max);
350 ptlrpc_lprocfs_wr_threads_max(struct file *file, const char *buffer,
351 unsigned long count, void *data)
353 struct ptlrpc_service *svc = data;
355 int rc = lprocfs_write_helper(buffer, count, &val);
363 if (val < svc->srv_threads_min)
366 cfs_spin_lock(&svc->srv_lock);
367 svc->srv_threads_max = val;
368 cfs_spin_unlock(&svc->srv_lock);
373 struct ptlrpc_srh_iterator {
375 struct ptlrpc_request *srhi_req;
379 ptlrpc_lprocfs_svc_req_history_seek(struct ptlrpc_service *svc,
380 struct ptlrpc_srh_iterator *srhi,
384 struct ptlrpc_request *req;
386 if (srhi->srhi_req != NULL &&
387 srhi->srhi_seq > svc->srv_request_max_cull_seq &&
388 srhi->srhi_seq <= seq) {
389 /* If srhi_req was set previously, hasn't been culled and
390 * we're searching for a seq on or after it (i.e. more
391 * recent), search from it onwards.
392 * Since the service history is LRU (i.e. culled reqs will
393 * be near the head), we shouldn't have to do long
395 LASSERT (srhi->srhi_seq == srhi->srhi_req->rq_history_seq);
396 LASSERT (!cfs_list_empty(&svc->srv_request_history));
397 e = &srhi->srhi_req->rq_history_list;
399 /* search from start */
400 e = svc->srv_request_history.next;
403 while (e != &svc->srv_request_history) {
404 req = cfs_list_entry(e, struct ptlrpc_request, rq_history_list);
406 if (req->rq_history_seq >= seq) {
407 srhi->srhi_seq = req->rq_history_seq;
408 srhi->srhi_req = req;
418 ptlrpc_lprocfs_svc_req_history_start(struct seq_file *s, loff_t *pos)
420 struct ptlrpc_service *svc = s->private;
421 struct ptlrpc_srh_iterator *srhi;
424 OBD_ALLOC(srhi, sizeof(*srhi));
429 srhi->srhi_req = NULL;
431 cfs_spin_lock(&svc->srv_lock);
432 rc = ptlrpc_lprocfs_svc_req_history_seek(svc, srhi, *pos);
433 cfs_spin_unlock(&svc->srv_lock);
436 *pos = srhi->srhi_seq;
440 OBD_FREE(srhi, sizeof(*srhi));
445 ptlrpc_lprocfs_svc_req_history_stop(struct seq_file *s, void *iter)
447 struct ptlrpc_srh_iterator *srhi = iter;
450 OBD_FREE(srhi, sizeof(*srhi));
454 ptlrpc_lprocfs_svc_req_history_next(struct seq_file *s,
455 void *iter, loff_t *pos)
457 struct ptlrpc_service *svc = s->private;
458 struct ptlrpc_srh_iterator *srhi = iter;
461 cfs_spin_lock(&svc->srv_lock);
462 rc = ptlrpc_lprocfs_svc_req_history_seek(svc, srhi, *pos + 1);
463 cfs_spin_unlock(&svc->srv_lock);
466 OBD_FREE(srhi, sizeof(*srhi));
470 *pos = srhi->srhi_seq;
474 /* common ost/mdt srv_req_printfn */
475 void target_print_req(void *seq_file, struct ptlrpc_request *req)
477 /* Called holding srv_lock with irqs disabled.
478 * Print specific req contents and a newline.
479 * CAVEAT EMPTOR: check request message length before printing!!!
480 * You might have received any old crap so you must be just as
481 * careful here as the service's request parser!!! */
482 struct seq_file *sf = seq_file;
484 switch (req->rq_phase) {
486 /* still awaiting a service thread's attention, or rejected
487 * because the generic request message didn't unpack */
488 seq_printf(sf, "<not swabbed>\n");
490 case RQ_PHASE_INTERPRET:
491 /* being handled, so basic msg swabbed, and opc is valid
492 * but racing with mds_handle() */
493 case RQ_PHASE_COMPLETE:
494 /* been handled by mds_handle() reply state possibly still
496 seq_printf(sf, "opc %d\n", lustre_msg_get_opc(req->rq_reqmsg));
499 DEBUG_REQ(D_ERROR, req, "bad phase %d", req->rq_phase);
502 EXPORT_SYMBOL(target_print_req);
504 static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter)
506 struct ptlrpc_service *svc = s->private;
507 struct ptlrpc_srh_iterator *srhi = iter;
508 struct ptlrpc_request *req;
511 cfs_spin_lock(&svc->srv_lock);
513 rc = ptlrpc_lprocfs_svc_req_history_seek(svc, srhi, srhi->srhi_seq);
516 req = srhi->srhi_req;
518 /* Print common req fields.
519 * CAVEAT EMPTOR: we're racing with the service handler
520 * here. The request could contain any old crap, so you
521 * must be just as careful as the service's request
522 * parser. Currently I only print stuff here I know is OK
523 * to look at coz it was set up in request_in_callback()!!! */
524 seq_printf(s, LPD64":%s:%s:x"LPU64":%d:%s:%ld:%lds(%+lds) ",
525 req->rq_history_seq, libcfs_nid2str(req->rq_self),
526 libcfs_id2str(req->rq_peer), req->rq_xid,
527 req->rq_reqlen, ptlrpc_rqphase2str(req),
528 req->rq_arrival_time.tv_sec,
529 req->rq_sent - req->rq_arrival_time.tv_sec,
530 req->rq_sent - req->rq_deadline);
531 if (svc->srv_req_printfn == NULL)
534 svc->srv_req_printfn(s, srhi->srhi_req);
537 cfs_spin_unlock(&svc->srv_lock);
543 ptlrpc_lprocfs_svc_req_history_open(struct inode *inode, struct file *file)
545 static struct seq_operations sops = {
546 .start = ptlrpc_lprocfs_svc_req_history_start,
547 .stop = ptlrpc_lprocfs_svc_req_history_stop,
548 .next = ptlrpc_lprocfs_svc_req_history_next,
549 .show = ptlrpc_lprocfs_svc_req_history_show,
551 struct proc_dir_entry *dp = PDE(inode);
552 struct seq_file *seqf;
555 LPROCFS_ENTRY_AND_CHECK(dp);
556 rc = seq_open(file, &sops);
562 seqf = file->private_data;
563 seqf->private = dp->data;
567 /* See also lprocfs_rd_timeouts */
568 static int ptlrpc_lprocfs_rd_timeouts(char *page, char **start, off_t off,
569 int count, int *eof, void *data)
571 struct ptlrpc_service *svc = data;
572 unsigned int cur, worst;
578 cur = at_get(&svc->srv_at_estimate);
579 worst = svc->srv_at_estimate.at_worst_ever;
580 worstt = svc->srv_at_estimate.at_worst_time;
581 s2dhms(&ts, cfs_time_current_sec() - worstt);
583 rc += snprintf(page + rc, count - rc,
584 "adaptive timeouts off, using obd_timeout %u\n",
586 rc += snprintf(page + rc, count - rc,
587 "%10s : cur %3u worst %3u (at %ld, "DHMS_FMT" ago) ",
588 "service", cur, worst, worstt,
590 rc = lprocfs_at_hist_helper(page, count, rc,
591 &svc->srv_at_estimate);
595 static int ptlrpc_lprocfs_rd_hp_ratio(char *page, char **start, off_t off,
596 int count, int *eof, void *data)
598 struct ptlrpc_service *svc = data;
599 int rc = snprintf(page, count, "%d", svc->srv_hpreq_ratio);
603 static int ptlrpc_lprocfs_wr_hp_ratio(struct file *file, const char *buffer,
604 unsigned long count, void *data)
606 struct ptlrpc_service *svc = data;
609 rc = lprocfs_write_helper(buffer, count, &val);
615 cfs_spin_lock(&svc->srv_lock);
616 svc->srv_hpreq_ratio = val;
617 cfs_spin_unlock(&svc->srv_lock);
621 void ptlrpc_lprocfs_register_service(struct proc_dir_entry *entry,
622 struct ptlrpc_service *svc)
624 struct lprocfs_vars lproc_vars[] = {
625 {.name = "high_priority_ratio",
626 .read_fptr = ptlrpc_lprocfs_rd_hp_ratio,
627 .write_fptr = ptlrpc_lprocfs_wr_hp_ratio,
629 {.name = "req_buffer_history_len",
630 .read_fptr = ptlrpc_lprocfs_read_req_history_len,
632 {.name = "req_buffer_history_max",
633 .write_fptr = ptlrpc_lprocfs_write_req_history_max,
634 .read_fptr = ptlrpc_lprocfs_read_req_history_max,
636 {.name = "threads_min",
637 .read_fptr = ptlrpc_lprocfs_rd_threads_min,
638 .write_fptr = ptlrpc_lprocfs_wr_threads_min,
640 {.name = "threads_max",
641 .read_fptr = ptlrpc_lprocfs_rd_threads_max,
642 .write_fptr = ptlrpc_lprocfs_wr_threads_max,
644 {.name = "threads_started",
645 .read_fptr = ptlrpc_lprocfs_rd_threads_started,
648 .read_fptr = ptlrpc_lprocfs_rd_timeouts,
652 static struct file_operations req_history_fops = {
653 .owner = THIS_MODULE,
654 .open = ptlrpc_lprocfs_svc_req_history_open,
657 .release = lprocfs_seq_release,
662 ptlrpc_lprocfs_register(entry, svc->srv_name,
663 "stats", &svc->srv_procroot,
666 if (svc->srv_procroot == NULL)
669 lprocfs_add_vars(svc->srv_procroot, lproc_vars, NULL);
671 rc = lprocfs_seq_create(svc->srv_procroot, "req_history",
672 0400, &req_history_fops, svc);
674 CWARN("Error adding the req_history file\n");
677 void ptlrpc_lprocfs_register_obd(struct obd_device *obddev)
679 ptlrpc_lprocfs_register(obddev->obd_proc_entry, NULL, "stats",
680 &obddev->obd_svc_procroot,
681 &obddev->obd_svc_stats);
683 EXPORT_SYMBOL(ptlrpc_lprocfs_register_obd);
685 void ptlrpc_lprocfs_rpc_sent(struct ptlrpc_request *req, long amount)
687 struct lprocfs_stats *svc_stats;
688 __u32 op = lustre_msg_get_opc(req->rq_reqmsg);
689 int opc = opcode_offset(op);
691 svc_stats = req->rq_import->imp_obd->obd_svc_stats;
692 if (svc_stats == NULL || opc <= 0)
694 LASSERT(opc < LUSTRE_MAX_OPCODES);
695 if (!(op == LDLM_ENQUEUE || op == MDS_REINT))
696 lprocfs_counter_add(svc_stats, opc + EXTRA_MAX_OPCODES, amount);
699 void ptlrpc_lprocfs_brw(struct ptlrpc_request *req, int bytes)
701 struct lprocfs_stats *svc_stats;
706 svc_stats = req->rq_import->imp_obd->obd_svc_stats;
709 idx = lustre_msg_get_opc(req->rq_reqmsg);
712 idx = BRW_READ_BYTES + PTLRPC_LAST_CNTR;
715 idx = BRW_WRITE_BYTES + PTLRPC_LAST_CNTR;
718 LASSERTF(0, "unsupported opcode %u\n", idx);
722 lprocfs_counter_add(svc_stats, idx, bytes);
725 EXPORT_SYMBOL(ptlrpc_lprocfs_brw);
727 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc)
729 if (svc->srv_procroot != NULL)
730 lprocfs_remove(&svc->srv_procroot);
733 lprocfs_free_stats(&svc->srv_stats);
736 void ptlrpc_lprocfs_unregister_obd(struct obd_device *obd)
738 if (obd->obd_svc_procroot)
739 lprocfs_remove(&obd->obd_svc_procroot);
741 if (obd->obd_svc_stats)
742 lprocfs_free_stats(&obd->obd_svc_stats);
744 EXPORT_SYMBOL(ptlrpc_lprocfs_unregister_obd);
747 #define BUFLEN (UUID_MAX + 5)
749 int lprocfs_wr_evict_client(struct file *file, const char *buffer,
750 unsigned long count, void *data)
752 struct obd_device *obd = data;
756 OBD_ALLOC(kbuf, BUFLEN);
761 * OBD_ALLOC() will zero kbuf, but we only copy BUFLEN - 1
762 * bytes into kbuf, to ensure that the string is NUL-terminated.
763 * UUID_MAX should include a trailing NUL already.
765 if (cfs_copy_from_user(kbuf, buffer,
766 min_t(unsigned long, BUFLEN - 1, count))) {
770 tmpbuf = cfs_firststr(kbuf, min_t(unsigned long, BUFLEN - 1, count));
771 /* Kludge code(deadlock situation): the lprocfs lock has been held
772 * since the client is evicted by writting client's
773 * uuid/nid to procfs "evict_client" entry. However,
774 * obd_export_evict_by_uuid() will call lprocfs_remove() to destroy
775 * the proc entries under the being destroyed export{}, so I have
776 * to drop the lock at first here.
777 * - jay, jxiong@clusterfs.com */
778 class_incref(obd, __FUNCTION__, cfs_current());
781 if (strncmp(tmpbuf, "nid:", 4) == 0)
782 obd_export_evict_by_nid(obd, tmpbuf + 4);
783 else if (strncmp(tmpbuf, "uuid:", 5) == 0)
784 obd_export_evict_by_uuid(obd, tmpbuf + 5);
786 obd_export_evict_by_uuid(obd, tmpbuf);
789 class_decref(obd, __FUNCTION__, cfs_current());
792 OBD_FREE(kbuf, BUFLEN);
795 EXPORT_SYMBOL(lprocfs_wr_evict_client);
799 int lprocfs_wr_ping(struct file *file, const char *buffer,
800 unsigned long count, void *data)
802 struct obd_device *obd = data;
803 struct ptlrpc_request *req;
807 LPROCFS_CLIMP_CHECK(obd);
808 req = ptlrpc_prep_ping(obd->u.cli.cl_import);
809 LPROCFS_CLIMP_EXIT(obd);
813 req->rq_send_state = LUSTRE_IMP_FULL;
815 rc = ptlrpc_queue_wait(req);
817 ptlrpc_req_finished(req);
822 EXPORT_SYMBOL(lprocfs_wr_ping);
824 /* Write the connection UUID to this file to attempt to connect to that node.
825 * The connection UUID is a node's primary NID. For example,
826 * "echo connection=192.168.0.1@tcp0::instance > .../import".
828 int lprocfs_wr_import(struct file *file, const char *buffer,
829 unsigned long count, void *data)
831 struct obd_device *obd = data;
832 struct obd_import *imp = obd->u.cli.cl_import;
837 const char prefix[] = "connection=";
838 const int prefix_len = sizeof(prefix) - 1;
840 if (count > CFS_PAGE_SIZE - 1 || count <= prefix_len)
843 OBD_ALLOC(kbuf, count + 1);
847 if (cfs_copy_from_user(kbuf, buffer, count))
848 GOTO(out, count = -EFAULT);
852 /* only support connection=uuid::instance now */
853 if (strncmp(prefix, kbuf, prefix_len) != 0)
854 GOTO(out, count = -EINVAL);
856 uuid = kbuf + prefix_len;
857 ptr = strstr(uuid, "::");
865 inst = simple_strtol(ptr, &endptr, 10);
867 CERROR("config: wrong instance # %s\n", ptr);
868 } else if (inst != imp->imp_connect_data.ocd_instance) {
869 CDEBUG(D_INFO, "IR: %s is connecting to an obsoleted "
870 "target(%u/%u), reconnecting...\n",
871 imp->imp_obd->obd_name,
872 imp->imp_connect_data.ocd_instance, inst);
875 CDEBUG(D_INFO, "IR: %s has already been connecting to "
877 imp->imp_obd->obd_name, inst);
882 ptlrpc_recover_import(imp, uuid, 1);
885 OBD_FREE(kbuf, count + 1);
888 EXPORT_SYMBOL(lprocfs_wr_import);
890 int lprocfs_rd_pinger_recov(char *page, char **start, off_t off,
891 int count, int *eof, void *data)
893 struct obd_device *obd = data;
894 struct obd_import *imp = obd->u.cli.cl_import;
897 LPROCFS_CLIMP_CHECK(obd);
898 rc = snprintf(page, count, "%d\n", !imp->imp_no_pinger_recover);
899 LPROCFS_CLIMP_EXIT(obd);
903 EXPORT_SYMBOL(lprocfs_rd_pinger_recov);
905 int lprocfs_wr_pinger_recov(struct file *file, const char *buffer,
906 unsigned long count, void *data)
908 struct obd_device *obd = data;
909 struct client_obd *cli = &obd->u.cli;
910 struct obd_import *imp = cli->cl_import;
913 rc = lprocfs_write_helper(buffer, count, &val);
917 if (val != 0 && val != 1)
920 LPROCFS_CLIMP_CHECK(obd);
921 cfs_spin_lock(&imp->imp_lock);
922 imp->imp_no_pinger_recover = !val;
923 cfs_spin_unlock(&imp->imp_lock);
924 LPROCFS_CLIMP_EXIT(obd);
929 EXPORT_SYMBOL(lprocfs_wr_pinger_recov);