1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 #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 { OBD_PING, "obd_ping" },
111 { OBD_LOG_CANCEL, "llog_origin_handle_cancel" },
112 { OBD_QC_CALLBACK, "obd_quota_callback" },
113 { LLOG_ORIGIN_HANDLE_CREATE, "llog_origin_handle_create" },
114 { LLOG_ORIGIN_HANDLE_NEXT_BLOCK, "llog_origin_handle_next_block" },
115 { LLOG_ORIGIN_HANDLE_READ_HEADER,"llog_origin_handle_read_header" },
116 { LLOG_ORIGIN_HANDLE_WRITE_REC, "llog_origin_handle_write_rec" },
117 { LLOG_ORIGIN_HANDLE_CLOSE, "llog_origin_handle_close" },
118 { LLOG_ORIGIN_CONNECT, "llog_origin_connect" },
119 { LLOG_CATINFO, "llog_catinfo" },
120 { LLOG_ORIGIN_HANDLE_PREV_BLOCK, "llog_origin_handle_prev_block" },
121 { LLOG_ORIGIN_HANDLE_DESTROY, "llog_origin_handle_destroy" },
122 { QUOTA_DQACQ, "quota_acquire" },
123 { QUOTA_DQREL, "quota_release" },
124 { SEQ_QUERY, "seq_query" },
125 { SEC_CTX_INIT, "sec_ctx_init" },
126 { SEC_CTX_INIT_CONT,"sec_ctx_init_cont" },
127 { SEC_CTX_FINI, "sec_ctx_fini" },
128 { FLD_QUERY, "fld_query" }
134 } ll_eopcode_table[EXTRA_LAST_OPC] = {
135 { LDLM_GLIMPSE_ENQUEUE, "ldlm_glimpse_enqueue" },
136 { LDLM_PLAIN_ENQUEUE, "ldlm_plain_enqueue" },
137 { LDLM_EXTENT_ENQUEUE, "ldlm_extent_enqueue" },
138 { LDLM_FLOCK_ENQUEUE, "ldlm_flock_enqueue" },
139 { LDLM_IBITS_ENQUEUE, "ldlm_ibits_enqueue" },
140 { MDS_REINT_SETATTR, "mds_reint_setattr" },
141 { MDS_REINT_CREATE, "mds_reint_create" },
142 { MDS_REINT_LINK, "mds_reint_link" },
143 { MDS_REINT_UNLINK, "mds_reint_unlink" },
144 { MDS_REINT_RENAME, "mds_reint_rename" },
145 { MDS_REINT_OPEN, "mds_reint_open" },
146 { MDS_REINT_SETXATTR, "mds_reint_setxattr" },
147 { BRW_READ_BYTES, "read_bytes" },
148 { BRW_WRITE_BYTES, "write_bytes" },
151 const char *ll_opcode2str(__u32 opcode)
153 /* When one of the assertions below fail, chances are that:
154 * 1) A new opcode was added in include/lustre/lustre_idl.h,
155 * but is missing from the table above.
156 * or 2) The opcode space was renumbered or rearranged,
157 * and the opcode_offset() function in
158 * ptlrpc_internal.h needs to be modified.
160 __u32 offset = opcode_offset(opcode);
161 LASSERTF(offset < LUSTRE_MAX_OPCODES,
162 "offset %u >= LUSTRE_MAX_OPCODES %u\n",
163 offset, LUSTRE_MAX_OPCODES);
164 LASSERTF(ll_rpc_opcode_table[offset].opcode == opcode,
165 "ll_rpc_opcode_table[%u].opcode %u != opcode %u\n",
166 offset, ll_rpc_opcode_table[offset].opcode, opcode);
167 return ll_rpc_opcode_table[offset].opname;
170 const char* ll_eopcode2str(__u32 opcode)
172 LASSERT(ll_eopcode_table[opcode].opcode == opcode);
173 return ll_eopcode_table[opcode].opname;
176 void ptlrpc_lprocfs_register(struct proc_dir_entry *root, char *dir,
177 char *name, struct proc_dir_entry **procroot_ret,
178 struct lprocfs_stats **stats_ret)
180 struct proc_dir_entry *svc_procroot;
181 struct lprocfs_stats *svc_stats;
183 unsigned int svc_counter_config = LPROCFS_CNTR_AVGMINMAX |
186 LASSERT(*procroot_ret == NULL);
187 LASSERT(*stats_ret == NULL);
189 svc_stats = lprocfs_alloc_stats(EXTRA_MAX_OPCODES+LUSTRE_MAX_OPCODES,0);
190 if (svc_stats == NULL)
194 svc_procroot = lprocfs_register(dir, root, NULL, NULL);
195 if (IS_ERR(svc_procroot)) {
196 lprocfs_free_stats(&svc_stats);
203 lprocfs_counter_init(svc_stats, PTLRPC_REQWAIT_CNTR,
204 svc_counter_config, "req_waittime", "usec");
205 lprocfs_counter_init(svc_stats, PTLRPC_REQQDEPTH_CNTR,
206 svc_counter_config, "req_qdepth", "reqs");
207 lprocfs_counter_init(svc_stats, PTLRPC_REQACTIVE_CNTR,
208 svc_counter_config, "req_active", "reqs");
209 lprocfs_counter_init(svc_stats, PTLRPC_TIMEOUT,
210 svc_counter_config, "req_timeout", "sec");
211 lprocfs_counter_init(svc_stats, PTLRPC_REQBUF_AVAIL_CNTR,
212 svc_counter_config, "reqbuf_avail", "bufs");
213 for (i = 0; i < EXTRA_LAST_OPC; i++) {
217 case BRW_WRITE_BYTES:
225 lprocfs_counter_init(svc_stats, PTLRPC_LAST_CNTR + i,
227 ll_eopcode2str(i), units);
229 for (i = 0; i < LUSTRE_MAX_OPCODES; i++) {
230 __u32 opcode = ll_rpc_opcode_table[i].opcode;
231 lprocfs_counter_init(svc_stats,
232 EXTRA_MAX_OPCODES + i, svc_counter_config,
233 ll_opcode2str(opcode), "usec");
236 rc = lprocfs_register_stats(svc_procroot, name, svc_stats);
239 lprocfs_remove(&svc_procroot);
240 lprocfs_free_stats(&svc_stats);
243 *procroot_ret = svc_procroot;
244 *stats_ret = svc_stats;
249 ptlrpc_lprocfs_read_req_history_len(char *page, char **start, off_t off,
250 int count, int *eof, void *data)
252 struct ptlrpc_service *svc = data;
255 return snprintf(page, count, "%d\n", svc->srv_n_history_rqbds);
259 ptlrpc_lprocfs_read_req_history_max(char *page, char **start, off_t off,
260 int count, int *eof, void *data)
262 struct ptlrpc_service *svc = data;
265 return snprintf(page, count, "%d\n", svc->srv_max_history_rqbds);
269 ptlrpc_lprocfs_write_req_history_max(struct file *file, const char *buffer,
270 unsigned long count, void *data)
272 struct ptlrpc_service *svc = data;
275 int rc = lprocfs_write_helper(buffer, count, &val);
283 /* This sanity check is more of an insanity check; we can still
284 * hose a kernel by allowing the request history to grow too
286 bufpages = (svc->srv_buf_size + CFS_PAGE_SIZE - 1) >> CFS_PAGE_SHIFT;
287 if (val > num_physpages/(2 * bufpages))
290 spin_lock(&svc->srv_lock);
291 svc->srv_max_history_rqbds = val;
292 spin_unlock(&svc->srv_lock);
298 ptlrpc_lprocfs_rd_threads_min(char *page, char **start, off_t off,
299 int count, int *eof, void *data)
301 struct ptlrpc_service *svc = data;
303 return snprintf(page, count, "%d\n", svc->srv_threads_min);
307 ptlrpc_lprocfs_wr_threads_min(struct file *file, const char *buffer,
308 unsigned long count, void *data)
310 struct ptlrpc_service *svc = data;
312 int rc = lprocfs_write_helper(buffer, count, &val);
320 if (val > svc->srv_threads_max)
323 spin_lock(&svc->srv_lock);
324 svc->srv_threads_min = val;
325 spin_unlock(&svc->srv_lock);
331 ptlrpc_lprocfs_rd_threads_started(char *page, char **start, off_t off,
332 int count, int *eof, void *data)
334 struct ptlrpc_service *svc = data;
336 return snprintf(page, count, "%d\n", svc->srv_threads_started);
340 ptlrpc_lprocfs_rd_threads_max(char *page, char **start, off_t off,
341 int count, int *eof, void *data)
343 struct ptlrpc_service *svc = data;
345 return snprintf(page, count, "%d\n", svc->srv_threads_max);
349 ptlrpc_lprocfs_wr_threads_max(struct file *file, const char *buffer,
350 unsigned long count, void *data)
352 struct ptlrpc_service *svc = data;
354 int rc = lprocfs_write_helper(buffer, count, &val);
362 if (val < svc->srv_threads_min)
365 spin_lock(&svc->srv_lock);
366 svc->srv_threads_max = val;
367 spin_unlock(&svc->srv_lock);
372 struct ptlrpc_srh_iterator {
374 struct ptlrpc_request *srhi_req;
378 ptlrpc_lprocfs_svc_req_history_seek(struct ptlrpc_service *svc,
379 struct ptlrpc_srh_iterator *srhi,
383 struct ptlrpc_request *req;
385 if (srhi->srhi_req != NULL &&
386 srhi->srhi_seq > svc->srv_request_max_cull_seq &&
387 srhi->srhi_seq <= seq) {
388 /* If srhi_req was set previously, hasn't been culled and
389 * we're searching for a seq on or after it (i.e. more
390 * recent), search from it onwards.
391 * Since the service history is LRU (i.e. culled reqs will
392 * be near the head), we shouldn't have to do long
394 LASSERT (srhi->srhi_seq == srhi->srhi_req->rq_history_seq);
395 LASSERT (!list_empty(&svc->srv_request_history));
396 e = &srhi->srhi_req->rq_history_list;
398 /* search from start */
399 e = svc->srv_request_history.next;
402 while (e != &svc->srv_request_history) {
403 req = list_entry(e, struct ptlrpc_request, rq_history_list);
405 if (req->rq_history_seq >= seq) {
406 srhi->srhi_seq = req->rq_history_seq;
407 srhi->srhi_req = req;
417 ptlrpc_lprocfs_svc_req_history_start(struct seq_file *s, loff_t *pos)
419 struct ptlrpc_service *svc = s->private;
420 struct ptlrpc_srh_iterator *srhi;
423 OBD_ALLOC(srhi, sizeof(*srhi));
428 srhi->srhi_req = NULL;
430 spin_lock(&svc->srv_lock);
431 rc = ptlrpc_lprocfs_svc_req_history_seek(svc, srhi, *pos);
432 spin_unlock(&svc->srv_lock);
435 *pos = srhi->srhi_seq;
439 OBD_FREE(srhi, sizeof(*srhi));
444 ptlrpc_lprocfs_svc_req_history_stop(struct seq_file *s, void *iter)
446 struct ptlrpc_srh_iterator *srhi = iter;
449 OBD_FREE(srhi, sizeof(*srhi));
453 ptlrpc_lprocfs_svc_req_history_next(struct seq_file *s,
454 void *iter, loff_t *pos)
456 struct ptlrpc_service *svc = s->private;
457 struct ptlrpc_srh_iterator *srhi = iter;
460 spin_lock(&svc->srv_lock);
461 rc = ptlrpc_lprocfs_svc_req_history_seek(svc, srhi, *pos + 1);
462 spin_unlock(&svc->srv_lock);
465 OBD_FREE(srhi, sizeof(*srhi));
469 *pos = srhi->srhi_seq;
473 /* common ost/mdt srv_request_history_print_fn */
474 void target_print_req(void *seq_file, struct ptlrpc_request *req)
476 /* Called holding srv_lock with irqs disabled.
477 * Print specific req contents and a newline.
478 * CAVEAT EMPTOR: check request message length before printing!!!
479 * You might have received any old crap so you must be just as
480 * careful here as the service's request parser!!! */
481 struct seq_file *sf = seq_file;
483 switch (req->rq_phase) {
485 /* still awaiting a service thread's attention, or rejected
486 * because the generic request message didn't unpack */
487 seq_printf(sf, "<not swabbed>\n");
489 case RQ_PHASE_INTERPRET:
490 /* being handled, so basic msg swabbed, and opc is valid
491 * but racing with mds_handle() */
492 case RQ_PHASE_COMPLETE:
493 /* been handled by mds_handle() reply state possibly still
495 seq_printf(sf, "opc %d\n", lustre_msg_get_opc(req->rq_reqmsg));
498 DEBUG_REQ(D_ERROR, req, "bad phase %d", req->rq_phase);
501 EXPORT_SYMBOL(target_print_req);
503 static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter)
505 struct ptlrpc_service *svc = s->private;
506 struct ptlrpc_srh_iterator *srhi = iter;
507 struct ptlrpc_request *req;
510 spin_lock(&svc->srv_lock);
512 rc = ptlrpc_lprocfs_svc_req_history_seek(svc, srhi, srhi->srhi_seq);
515 req = srhi->srhi_req;
517 /* Print common req fields.
518 * CAVEAT EMPTOR: we're racing with the service handler
519 * here. The request could contain any old crap, so you
520 * must be just as careful as the service's request
521 * parser. Currently I only print stuff here I know is OK
522 * to look at coz it was set up in request_in_callback()!!! */
523 seq_printf(s, LPD64":%s:%s:x"LPU64":%d:%s:%ld:%lds(%+lds) ",
524 req->rq_history_seq, libcfs_nid2str(req->rq_self),
525 libcfs_id2str(req->rq_peer), req->rq_xid,
526 req->rq_reqlen, ptlrpc_rqphase2str(req),
527 req->rq_arrival_time.tv_sec,
528 req->rq_sent - req->rq_arrival_time.tv_sec,
529 req->rq_sent - req->rq_deadline);
530 if (svc->srv_request_history_print_fn == NULL)
533 svc->srv_request_history_print_fn(s, srhi->srhi_req);
536 spin_unlock(&svc->srv_lock);
542 ptlrpc_lprocfs_svc_req_history_open(struct inode *inode, struct file *file)
544 static struct seq_operations sops = {
545 .start = ptlrpc_lprocfs_svc_req_history_start,
546 .stop = ptlrpc_lprocfs_svc_req_history_stop,
547 .next = ptlrpc_lprocfs_svc_req_history_next,
548 .show = ptlrpc_lprocfs_svc_req_history_show,
550 struct proc_dir_entry *dp = PDE(inode);
551 struct seq_file *seqf;
554 LPROCFS_ENTRY_AND_CHECK(dp);
555 rc = seq_open(file, &sops);
561 seqf = file->private_data;
562 seqf->private = dp->data;
566 /* See also lprocfs_rd_timeouts */
567 static int ptlrpc_lprocfs_rd_timeouts(char *page, char **start, off_t off,
568 int count, int *eof, void *data)
570 struct ptlrpc_service *svc = data;
571 unsigned int cur, worst;
577 cur = at_get(&svc->srv_at_estimate);
578 worst = svc->srv_at_estimate.at_worst_ever;
579 worstt = svc->srv_at_estimate.at_worst_time;
580 s2dhms(&ts, cfs_time_current_sec() - worstt);
582 rc += snprintf(page + rc, count - rc,
583 "adaptive timeouts off, using obd_timeout %u\n",
585 rc += snprintf(page + rc, count - rc,
586 "%10s : cur %3u worst %3u (at %ld, "DHMS_FMT" ago) ",
587 "service", cur, worst, worstt,
589 rc = lprocfs_at_hist_helper(page, count, rc,
590 &svc->srv_at_estimate);
594 static int ptlrpc_lprocfs_rd_hp_ratio(char *page, char **start, off_t off,
595 int count, int *eof, void *data)
597 struct ptlrpc_service *svc = data;
598 int rc = snprintf(page, count, "%d", svc->srv_hpreq_ratio);
602 static int ptlrpc_lprocfs_wr_hp_ratio(struct file *file, const char *buffer,
603 unsigned long count, void *data)
605 struct ptlrpc_service *svc = data;
608 rc = lprocfs_write_helper(buffer, count, &val);
614 spin_lock(&svc->srv_lock);
615 svc->srv_hpreq_ratio = val;
616 spin_unlock(&svc->srv_lock);
620 void ptlrpc_lprocfs_register_service(struct proc_dir_entry *entry,
621 struct ptlrpc_service *svc)
623 struct lprocfs_vars lproc_vars[] = {
624 {.name = "high_priority_ratio",
625 .read_fptr = ptlrpc_lprocfs_rd_hp_ratio,
626 .write_fptr = ptlrpc_lprocfs_wr_hp_ratio,
628 {.name = "req_buffer_history_len",
629 .read_fptr = ptlrpc_lprocfs_read_req_history_len,
631 {.name = "req_buffer_history_max",
632 .write_fptr = ptlrpc_lprocfs_write_req_history_max,
633 .read_fptr = ptlrpc_lprocfs_read_req_history_max,
635 {.name = "threads_min",
636 .read_fptr = ptlrpc_lprocfs_rd_threads_min,
637 .write_fptr = ptlrpc_lprocfs_wr_threads_min,
639 {.name = "threads_max",
640 .read_fptr = ptlrpc_lprocfs_rd_threads_max,
641 .write_fptr = ptlrpc_lprocfs_wr_threads_max,
643 {.name = "threads_started",
644 .read_fptr = ptlrpc_lprocfs_rd_threads_started,
647 .read_fptr = ptlrpc_lprocfs_rd_timeouts,
651 static struct file_operations req_history_fops = {
652 .owner = THIS_MODULE,
653 .open = ptlrpc_lprocfs_svc_req_history_open,
656 .release = lprocfs_seq_release,
661 ptlrpc_lprocfs_register(entry, svc->srv_name,
662 "stats", &svc->srv_procroot,
665 if (svc->srv_procroot == NULL)
668 lprocfs_add_vars(svc->srv_procroot, lproc_vars, NULL);
670 rc = lprocfs_seq_create(svc->srv_procroot, "req_history",
671 0400, &req_history_fops, svc);
673 CWARN("Error adding the req_history file\n");
676 void ptlrpc_lprocfs_register_obd(struct obd_device *obddev)
678 ptlrpc_lprocfs_register(obddev->obd_proc_entry, NULL, "stats",
679 &obddev->obd_svc_procroot,
680 &obddev->obd_svc_stats);
682 EXPORT_SYMBOL(ptlrpc_lprocfs_register_obd);
684 void ptlrpc_lprocfs_rpc_sent(struct ptlrpc_request *req, long amount)
686 struct lprocfs_stats *svc_stats;
687 __u32 op = lustre_msg_get_opc(req->rq_reqmsg);
688 int opc = opcode_offset(op);
690 svc_stats = req->rq_import->imp_obd->obd_svc_stats;
691 if (svc_stats == NULL || opc <= 0)
693 LASSERT(opc < LUSTRE_MAX_OPCODES);
694 if (!(op == LDLM_ENQUEUE || op == MDS_REINT))
695 lprocfs_counter_add(svc_stats, opc + EXTRA_MAX_OPCODES, amount);
698 void ptlrpc_lprocfs_brw(struct ptlrpc_request *req, int bytes)
700 struct lprocfs_stats *svc_stats;
705 svc_stats = req->rq_import->imp_obd->obd_svc_stats;
708 idx = lustre_msg_get_opc(req->rq_reqmsg);
711 idx = BRW_READ_BYTES + PTLRPC_LAST_CNTR;
714 idx = BRW_WRITE_BYTES + PTLRPC_LAST_CNTR;
717 LASSERTF(0, "unsupported opcode %u\n", idx);
721 lprocfs_counter_add(svc_stats, idx, bytes);
724 EXPORT_SYMBOL(ptlrpc_lprocfs_brw);
726 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc)
728 if (svc->srv_procroot != NULL)
729 lprocfs_remove(&svc->srv_procroot);
732 lprocfs_free_stats(&svc->srv_stats);
735 void ptlrpc_lprocfs_unregister_obd(struct obd_device *obd)
737 if (obd->obd_svc_procroot)
738 lprocfs_remove(&obd->obd_svc_procroot);
740 if (obd->obd_svc_stats)
741 lprocfs_free_stats(&obd->obd_svc_stats);
743 EXPORT_SYMBOL(ptlrpc_lprocfs_unregister_obd);
746 int lprocfs_wr_evict_client(struct file *file, const char *buffer,
747 unsigned long count, void *data)
749 struct obd_device *obd = data;
750 char tmpbuf[sizeof(struct obd_uuid)];
752 /* Kludge code(deadlock situation): the lprocfs lock has been held
753 * since the client is evicted by writting client's
754 * uuid/nid to procfs "evict_client" entry. However,
755 * obd_export_evict_by_uuid() will call lprocfs_remove() to destroy
756 * the proc entries under the being destroyed export{}, so I have
757 * to drop the lock at first here.
758 * - jay, jxiong@clusterfs.com */
759 class_incref(obd, __FUNCTION__, cfs_current());
762 sscanf(buffer, "%40s", tmpbuf);
763 if (strncmp(tmpbuf, "nid:", 4) == 0)
764 obd_export_evict_by_nid(obd, tmpbuf + 4);
765 else if (strncmp(tmpbuf, "uuid:", 5) == 0)
766 obd_export_evict_by_uuid(obd, tmpbuf + 5);
768 obd_export_evict_by_uuid(obd, tmpbuf);
771 class_decref(obd, __FUNCTION__, cfs_current());
775 EXPORT_SYMBOL(lprocfs_wr_evict_client);
777 int lprocfs_wr_ping(struct file *file, const char *buffer,
778 unsigned long count, void *data)
780 struct obd_device *obd = data;
781 struct ptlrpc_request *req;
785 LPROCFS_CLIMP_CHECK(obd);
786 req = ptlrpc_prep_ping(obd->u.cli.cl_import);
787 LPROCFS_CLIMP_EXIT(obd);
791 req->rq_send_state = LUSTRE_IMP_FULL;
793 rc = ptlrpc_queue_wait(req);
795 ptlrpc_req_finished(req);
800 EXPORT_SYMBOL(lprocfs_wr_ping);