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 { LDLM_ENQUEUE, "ldlm_enqueue" },
97 { LDLM_CONVERT, "ldlm_convert" },
98 { LDLM_CANCEL, "ldlm_cancel" },
99 { LDLM_BL_CALLBACK, "ldlm_bl_callback" },
100 { LDLM_CP_CALLBACK, "ldlm_cp_callback" },
101 { LDLM_GL_CALLBACK, "ldlm_gl_callback" },
102 { MGS_CONNECT, "mgs_connect" },
103 { MGS_DISCONNECT, "mgs_disconnect" },
104 { MGS_EXCEPTION, "mgs_exception" },
105 { MGS_TARGET_REG, "mgs_target_reg" },
106 { MGS_TARGET_DEL, "mgs_target_del" },
107 { MGS_SET_INFO, "mgs_set_info" },
108 { OBD_PING, "obd_ping" },
109 { OBD_LOG_CANCEL, "llog_origin_handle_cancel" },
110 { OBD_QC_CALLBACK, "obd_quota_callback" },
111 { LLOG_ORIGIN_HANDLE_CREATE, "llog_origin_handle_create" },
112 { LLOG_ORIGIN_HANDLE_NEXT_BLOCK, "llog_origin_handle_next_block" },
113 { LLOG_ORIGIN_HANDLE_READ_HEADER,"llog_origin_handle_read_header" },
114 { LLOG_ORIGIN_HANDLE_WRITE_REC, "llog_origin_handle_write_rec" },
115 { LLOG_ORIGIN_HANDLE_CLOSE, "llog_origin_handle_close" },
116 { LLOG_ORIGIN_CONNECT, "llog_origin_connect" },
117 { LLOG_CATINFO, "llog_catinfo" },
118 { LLOG_ORIGIN_HANDLE_PREV_BLOCK, "llog_origin_handle_prev_block" },
119 { LLOG_ORIGIN_HANDLE_DESTROY, "llog_origin_handle_destroy" },
120 { QUOTA_DQACQ, "quota_acquire" },
121 { QUOTA_DQREL, "quota_release" },
122 { SEQ_QUERY, "seq_query" },
123 { SEC_CTX_INIT, "sec_ctx_init" },
124 { SEC_CTX_INIT_CONT,"sec_ctx_init_cont" },
125 { SEC_CTX_FINI, "sec_ctx_fini" },
126 { FLD_QUERY, "fld_query" }
132 } ll_eopcode_table[EXTRA_LAST_OPC] = {
133 { LDLM_GLIMPSE_ENQUEUE, "ldlm_glimpse_enqueue" },
134 { LDLM_PLAIN_ENQUEUE, "ldlm_plain_enqueue" },
135 { LDLM_EXTENT_ENQUEUE, "ldlm_extent_enqueue" },
136 { LDLM_FLOCK_ENQUEUE, "ldlm_flock_enqueue" },
137 { LDLM_IBITS_ENQUEUE, "ldlm_ibits_enqueue" },
138 { MDS_REINT_SETATTR, "mds_reint_setattr" },
139 { MDS_REINT_CREATE, "mds_reint_create" },
140 { MDS_REINT_LINK, "mds_reint_link" },
141 { MDS_REINT_UNLINK, "mds_reint_unlink" },
142 { MDS_REINT_RENAME, "mds_reint_rename" },
143 { MDS_REINT_OPEN, "mds_reint_open" },
144 { MDS_REINT_SETXATTR, "mds_reint_setxattr" },
145 { BRW_READ_BYTES, "read_bytes" },
146 { BRW_WRITE_BYTES, "write_bytes" },
149 const char *ll_opcode2str(__u32 opcode)
151 /* When one of the assertions below fail, chances are that:
152 * 1) A new opcode was added in include/lustre/lustre_idl.h,
153 * but is missing from the table above.
154 * or 2) The opcode space was renumbered or rearranged,
155 * and the opcode_offset() function in
156 * ptlrpc_internal.h needs to be modified.
158 __u32 offset = opcode_offset(opcode);
159 LASSERTF(offset < LUSTRE_MAX_OPCODES,
160 "offset %u >= LUSTRE_MAX_OPCODES %u\n",
161 offset, LUSTRE_MAX_OPCODES);
162 LASSERTF(ll_rpc_opcode_table[offset].opcode == opcode,
163 "ll_rpc_opcode_table[%u].opcode %u != opcode %u\n",
164 offset, ll_rpc_opcode_table[offset].opcode, opcode);
165 return ll_rpc_opcode_table[offset].opname;
168 const char* ll_eopcode2str(__u32 opcode)
170 LASSERT(ll_eopcode_table[opcode].opcode == opcode);
171 return ll_eopcode_table[opcode].opname;
174 void ptlrpc_lprocfs_register(struct proc_dir_entry *root, char *dir,
175 char *name, struct proc_dir_entry **procroot_ret,
176 struct lprocfs_stats **stats_ret)
178 struct proc_dir_entry *svc_procroot;
179 struct lprocfs_stats *svc_stats;
181 unsigned int svc_counter_config = LPROCFS_CNTR_AVGMINMAX |
184 LASSERT(*procroot_ret == NULL);
185 LASSERT(*stats_ret == NULL);
187 svc_stats = lprocfs_alloc_stats(EXTRA_MAX_OPCODES+LUSTRE_MAX_OPCODES,0);
188 if (svc_stats == NULL)
192 svc_procroot = lprocfs_register(dir, root, NULL, NULL);
193 if (IS_ERR(svc_procroot)) {
194 lprocfs_free_stats(&svc_stats);
201 lprocfs_counter_init(svc_stats, PTLRPC_REQWAIT_CNTR,
202 svc_counter_config, "req_waittime", "usec");
203 lprocfs_counter_init(svc_stats, PTLRPC_REQQDEPTH_CNTR,
204 svc_counter_config, "req_qdepth", "reqs");
205 lprocfs_counter_init(svc_stats, PTLRPC_REQACTIVE_CNTR,
206 svc_counter_config, "req_active", "reqs");
207 lprocfs_counter_init(svc_stats, PTLRPC_TIMEOUT,
208 svc_counter_config, "req_timeout", "sec");
209 lprocfs_counter_init(svc_stats, PTLRPC_REQBUF_AVAIL_CNTR,
210 svc_counter_config, "reqbuf_avail", "bufs");
211 for (i = 0; i < EXTRA_LAST_OPC; i++) {
215 case BRW_WRITE_BYTES:
223 lprocfs_counter_init(svc_stats, PTLRPC_LAST_CNTR + i,
225 ll_eopcode2str(i), units);
227 for (i = 0; i < LUSTRE_MAX_OPCODES; i++) {
228 __u32 opcode = ll_rpc_opcode_table[i].opcode;
229 lprocfs_counter_init(svc_stats,
230 EXTRA_MAX_OPCODES + i, svc_counter_config,
231 ll_opcode2str(opcode), "usec");
234 rc = lprocfs_register_stats(svc_procroot, name, svc_stats);
237 lprocfs_remove(&svc_procroot);
238 lprocfs_free_stats(&svc_stats);
241 *procroot_ret = svc_procroot;
242 *stats_ret = svc_stats;
247 ptlrpc_lprocfs_read_req_history_len(char *page, char **start, off_t off,
248 int count, int *eof, void *data)
250 struct ptlrpc_service *svc = data;
253 return snprintf(page, count, "%d\n", svc->srv_n_history_rqbds);
257 ptlrpc_lprocfs_read_req_history_max(char *page, char **start, off_t off,
258 int count, int *eof, void *data)
260 struct ptlrpc_service *svc = data;
263 return snprintf(page, count, "%d\n", svc->srv_max_history_rqbds);
267 ptlrpc_lprocfs_write_req_history_max(struct file *file, const char *buffer,
268 unsigned long count, void *data)
270 struct ptlrpc_service *svc = data;
273 int rc = lprocfs_write_helper(buffer, count, &val);
281 /* This sanity check is more of an insanity check; we can still
282 * hose a kernel by allowing the request history to grow too
284 bufpages = (svc->srv_buf_size + CFS_PAGE_SIZE - 1) >> CFS_PAGE_SHIFT;
285 if (val > num_physpages/(2 * bufpages))
288 spin_lock(&svc->srv_lock);
289 svc->srv_max_history_rqbds = val;
290 spin_unlock(&svc->srv_lock);
295 struct ptlrpc_srh_iterator {
297 struct ptlrpc_request *srhi_req;
301 ptlrpc_lprocfs_svc_req_history_seek(struct ptlrpc_service *svc,
302 struct ptlrpc_srh_iterator *srhi,
306 struct ptlrpc_request *req;
308 if (srhi->srhi_req != NULL &&
309 srhi->srhi_seq > svc->srv_request_max_cull_seq &&
310 srhi->srhi_seq <= seq) {
311 /* If srhi_req was set previously, hasn't been culled and
312 * we're searching for a seq on or after it (i.e. more
313 * recent), search from it onwards.
314 * Since the service history is LRU (i.e. culled reqs will
315 * be near the head), we shouldn't have to do long
317 LASSERT (srhi->srhi_seq == srhi->srhi_req->rq_history_seq);
318 LASSERT (!list_empty(&svc->srv_request_history));
319 e = &srhi->srhi_req->rq_history_list;
321 /* search from start */
322 e = svc->srv_request_history.next;
325 while (e != &svc->srv_request_history) {
326 req = list_entry(e, struct ptlrpc_request, rq_history_list);
328 if (req->rq_history_seq >= seq) {
329 srhi->srhi_seq = req->rq_history_seq;
330 srhi->srhi_req = req;
340 ptlrpc_lprocfs_svc_req_history_start(struct seq_file *s, loff_t *pos)
342 struct ptlrpc_service *svc = s->private;
343 struct ptlrpc_srh_iterator *srhi;
346 OBD_ALLOC(srhi, sizeof(*srhi));
351 srhi->srhi_req = NULL;
353 spin_lock(&svc->srv_lock);
354 rc = ptlrpc_lprocfs_svc_req_history_seek(svc, srhi, *pos);
355 spin_unlock(&svc->srv_lock);
358 *pos = srhi->srhi_seq;
362 OBD_FREE(srhi, sizeof(*srhi));
367 ptlrpc_lprocfs_svc_req_history_stop(struct seq_file *s, void *iter)
369 struct ptlrpc_srh_iterator *srhi = iter;
372 OBD_FREE(srhi, sizeof(*srhi));
376 ptlrpc_lprocfs_svc_req_history_next(struct seq_file *s,
377 void *iter, loff_t *pos)
379 struct ptlrpc_service *svc = s->private;
380 struct ptlrpc_srh_iterator *srhi = iter;
383 spin_lock(&svc->srv_lock);
384 rc = ptlrpc_lprocfs_svc_req_history_seek(svc, srhi, *pos + 1);
385 spin_unlock(&svc->srv_lock);
388 OBD_FREE(srhi, sizeof(*srhi));
392 *pos = srhi->srhi_seq;
396 /* common ost/mdt srv_request_history_print_fn */
397 void target_print_req(void *seq_file, struct ptlrpc_request *req)
399 /* Called holding srv_lock with irqs disabled.
400 * Print specific req contents and a newline.
401 * CAVEAT EMPTOR: check request message length before printing!!!
402 * You might have received any old crap so you must be just as
403 * careful here as the service's request parser!!! */
404 struct seq_file *sf = seq_file;
406 switch (req->rq_phase) {
408 /* still awaiting a service thread's attention, or rejected
409 * because the generic request message didn't unpack */
410 seq_printf(sf, "<not swabbed>\n");
412 case RQ_PHASE_INTERPRET:
413 /* being handled, so basic msg swabbed, and opc is valid
414 * but racing with mds_handle() */
415 case RQ_PHASE_COMPLETE:
416 /* been handled by mds_handle() reply state possibly still
418 seq_printf(sf, "opc %d\n", lustre_msg_get_opc(req->rq_reqmsg));
421 DEBUG_REQ(D_ERROR, req, "bad phase %d", req->rq_phase);
424 EXPORT_SYMBOL(target_print_req);
426 static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter)
428 struct ptlrpc_service *svc = s->private;
429 struct ptlrpc_srh_iterator *srhi = iter;
430 struct ptlrpc_request *req;
433 spin_lock(&svc->srv_lock);
435 rc = ptlrpc_lprocfs_svc_req_history_seek(svc, srhi, srhi->srhi_seq);
438 req = srhi->srhi_req;
440 /* Print common req fields.
441 * CAVEAT EMPTOR: we're racing with the service handler
442 * here. The request could contain any old crap, so you
443 * must be just as careful as the service's request
444 * parser. Currently I only print stuff here I know is OK
445 * to look at coz it was set up in request_in_callback()!!! */
446 seq_printf(s, LPD64":%s:%s:x"LPD64":%d:%s:%ld:%lds(%+lds) ",
447 req->rq_history_seq, libcfs_nid2str(req->rq_self),
448 libcfs_id2str(req->rq_peer), req->rq_xid,
449 req->rq_reqlen, ptlrpc_rqphase2str(req),
450 req->rq_arrival_time.tv_sec,
451 req->rq_sent - req->rq_arrival_time.tv_sec,
452 req->rq_sent - req->rq_deadline);
453 if (svc->srv_request_history_print_fn == NULL)
456 svc->srv_request_history_print_fn(s, srhi->srhi_req);
459 spin_unlock(&svc->srv_lock);
465 ptlrpc_lprocfs_svc_req_history_open(struct inode *inode, struct file *file)
467 static struct seq_operations sops = {
468 .start = ptlrpc_lprocfs_svc_req_history_start,
469 .stop = ptlrpc_lprocfs_svc_req_history_stop,
470 .next = ptlrpc_lprocfs_svc_req_history_next,
471 .show = ptlrpc_lprocfs_svc_req_history_show,
473 struct proc_dir_entry *dp = PDE(inode);
474 struct seq_file *seqf;
477 LPROCFS_ENTRY_AND_CHECK(dp);
478 rc = seq_open(file, &sops);
484 seqf = file->private_data;
485 seqf->private = dp->data;
489 /* See also lprocfs_rd_timeouts */
490 static int ptlrpc_lprocfs_rd_timeouts(char *page, char **start, off_t off,
491 int count, int *eof, void *data)
493 struct ptlrpc_service *svc = data;
494 unsigned int cur, worst;
500 cur = at_get(&svc->srv_at_estimate);
501 worst = svc->srv_at_estimate.at_worst_ever;
502 worstt = svc->srv_at_estimate.at_worst_time;
503 s2dhms(&ts, cfs_time_current_sec() - worstt);
505 rc += snprintf(page + rc, count - rc,
506 "adaptive timeouts off, using obd_timeout %u\n",
508 rc += snprintf(page + rc, count - rc,
509 "%10s : cur %3u worst %3u (at %ld, "DHMS_FMT" ago) ",
510 "service", cur, worst, worstt,
512 rc = lprocfs_at_hist_helper(page, count, rc,
513 &svc->srv_at_estimate);
517 static int ptlrpc_lprocfs_rd_hp_ratio(char *page, char **start, off_t off,
518 int count, int *eof, void *data)
520 struct ptlrpc_service *svc = data;
521 int rc = snprintf(page, count, "%d", svc->srv_hpreq_ratio);
525 static int ptlrpc_lprocfs_wr_hp_ratio(struct file *file, const char *buffer,
526 unsigned long count, void *data)
528 struct ptlrpc_service *svc = data;
531 rc = lprocfs_write_helper(buffer, count, &val);
537 spin_lock(&svc->srv_lock);
538 svc->srv_hpreq_ratio = val;
539 spin_unlock(&svc->srv_lock);
543 void ptlrpc_lprocfs_register_service(struct proc_dir_entry *entry,
544 struct ptlrpc_service *svc)
546 struct lprocfs_vars lproc_vars[] = {
547 {.name = "req_buffer_history_len",
549 .read_fptr = ptlrpc_lprocfs_read_req_history_len,
551 {.name = "req_buffer_history_max",
552 .write_fptr = ptlrpc_lprocfs_write_req_history_max,
553 .read_fptr = ptlrpc_lprocfs_read_req_history_max,
556 .read_fptr = ptlrpc_lprocfs_rd_timeouts,
558 {.name = "high_priority_ratio",
559 .read_fptr = ptlrpc_lprocfs_rd_hp_ratio,
560 .write_fptr = ptlrpc_lprocfs_wr_hp_ratio,
564 static struct file_operations req_history_fops = {
565 .owner = THIS_MODULE,
566 .open = ptlrpc_lprocfs_svc_req_history_open,
569 .release = lprocfs_seq_release,
574 ptlrpc_lprocfs_register(entry, svc->srv_name,
575 "stats", &svc->srv_procroot,
578 if (svc->srv_procroot == NULL)
581 lprocfs_add_vars(svc->srv_procroot, lproc_vars, NULL);
583 rc = lprocfs_seq_create(svc->srv_procroot, "req_history",
584 0400, &req_history_fops, svc);
586 CWARN("Error adding the req_history file\n");
589 void ptlrpc_lprocfs_register_obd(struct obd_device *obddev)
591 ptlrpc_lprocfs_register(obddev->obd_proc_entry, NULL, "stats",
592 &obddev->obd_svc_procroot,
593 &obddev->obd_svc_stats);
595 EXPORT_SYMBOL(ptlrpc_lprocfs_register_obd);
597 void ptlrpc_lprocfs_rpc_sent(struct ptlrpc_request *req, long amount)
599 struct lprocfs_stats *svc_stats;
600 __u32 op = lustre_msg_get_opc(req->rq_reqmsg);
601 int opc = opcode_offset(op);
603 svc_stats = req->rq_import->imp_obd->obd_svc_stats;
604 if (svc_stats == NULL || opc <= 0)
606 LASSERT(opc < LUSTRE_MAX_OPCODES);
607 if (!(op == LDLM_ENQUEUE || op == MDS_REINT))
608 lprocfs_counter_add(svc_stats, opc + EXTRA_MAX_OPCODES, amount);
611 void ptlrpc_lprocfs_brw(struct ptlrpc_request *req, int bytes)
613 struct lprocfs_stats *svc_stats;
618 svc_stats = req->rq_import->imp_obd->obd_svc_stats;
621 idx = lustre_msg_get_opc(req->rq_reqmsg);
624 idx = BRW_READ_BYTES + PTLRPC_LAST_CNTR;
627 idx = BRW_WRITE_BYTES + PTLRPC_LAST_CNTR;
630 LASSERTF(0, "unsupported opcode %u\n", idx);
634 lprocfs_counter_add(svc_stats, idx, bytes);
637 EXPORT_SYMBOL(ptlrpc_lprocfs_brw);
639 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc)
641 if (svc->srv_procroot != NULL)
642 lprocfs_remove(&svc->srv_procroot);
645 lprocfs_free_stats(&svc->srv_stats);
648 void ptlrpc_lprocfs_unregister_obd(struct obd_device *obd)
650 if (obd->obd_svc_procroot)
651 lprocfs_remove(&obd->obd_svc_procroot);
653 if (obd->obd_svc_stats)
654 lprocfs_free_stats(&obd->obd_svc_stats);
656 EXPORT_SYMBOL(ptlrpc_lprocfs_unregister_obd);
659 int lprocfs_wr_evict_client(struct file *file, const char *buffer,
660 unsigned long count, void *data)
662 struct obd_device *obd = data;
663 char tmpbuf[sizeof(struct obd_uuid)];
665 /* Kludge code(deadlock situation): the lprocfs lock has been held
666 * since the client is evicted by writting client's
667 * uuid/nid to procfs "evict_client" entry. However,
668 * obd_export_evict_by_uuid() will call lprocfs_remove() to destroy
669 * the proc entries under the being destroyed export{}, so I have
670 * to drop the lock at first here.
671 * - jay, jxiong@clusterfs.com */
672 class_incref(obd, __FUNCTION__, cfs_current());
675 sscanf(buffer, "%40s", tmpbuf);
676 if (strncmp(tmpbuf, "nid:", 4) == 0)
677 obd_export_evict_by_nid(obd, tmpbuf + 4);
678 else if (strncmp(tmpbuf, "uuid:", 5) == 0)
679 obd_export_evict_by_uuid(obd, tmpbuf + 5);
681 obd_export_evict_by_uuid(obd, tmpbuf);
684 class_decref(obd, __FUNCTION__, cfs_current());
688 EXPORT_SYMBOL(lprocfs_wr_evict_client);
690 int lprocfs_wr_ping(struct file *file, const char *buffer,
691 unsigned long count, void *data)
693 struct obd_device *obd = data;
694 struct ptlrpc_request *req;
698 LPROCFS_CLIMP_CHECK(obd);
699 req = ptlrpc_prep_ping(obd->u.cli.cl_import);
700 LPROCFS_CLIMP_EXIT(obd);
704 req->rq_send_state = LUSTRE_IMP_FULL;
706 rc = ptlrpc_queue_wait(req);
708 ptlrpc_req_finished(req);
713 EXPORT_SYMBOL(lprocfs_wr_ping);