aboutsummaryrefslogtreecommitdiffstats
path: root/fs/ocfs2/dlm/dlmdebug.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/ocfs2/dlm/dlmdebug.c')
-rw-r--r--fs/ocfs2/dlm/dlmdebug.c246
1 files changed, 246 insertions, 0 deletions
diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c
new file mode 100644
index 000000000000..f339fe27975a
--- /dev/null
+++ b/fs/ocfs2/dlm/dlmdebug.c
@@ -0,0 +1,246 @@
1/* -*- mode: c; c-basic-offset: 8; -*-
2 * vim: noexpandtab sw=8 ts=8 sts=0:
3 *
4 * dlmdebug.c
5 *
6 * debug functionality for the dlm
7 *
8 * Copyright (C) 2004 Oracle. All rights reserved.
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public
12 * License as published by the Free Software Foundation; either
13 * version 2 of the License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public
21 * License along with this program; if not, write to the
22 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 * Boston, MA 021110-1307, USA.
24 *
25 */
26
27#include <linux/types.h>
28#include <linux/slab.h>
29#include <linux/highmem.h>
30#include <linux/utsname.h>
31#include <linux/sysctl.h>
32#include <linux/spinlock.h>
33
34#include "cluster/heartbeat.h"
35#include "cluster/nodemanager.h"
36#include "cluster/tcp.h"
37
38#include "dlmapi.h"
39#include "dlmcommon.h"
40#include "dlmdebug.h"
41
42#include "dlmdomain.h"
43#include "dlmdebug.h"
44
45#define MLOG_MASK_PREFIX ML_DLM
46#include "cluster/masklog.h"
47
48void dlm_print_one_lock_resource(struct dlm_lock_resource *res)
49{
50 mlog(ML_NOTICE, "lockres: %.*s, owner=%u, state=%u\n",
51 res->lockname.len, res->lockname.name,
52 res->owner, res->state);
53 spin_lock(&res->spinlock);
54 __dlm_print_one_lock_resource(res);
55 spin_unlock(&res->spinlock);
56}
57
58void __dlm_print_one_lock_resource(struct dlm_lock_resource *res)
59{
60 struct list_head *iter2;
61 struct dlm_lock *lock;
62
63 assert_spin_locked(&res->spinlock);
64
65 mlog(ML_NOTICE, "lockres: %.*s, owner=%u, state=%u\n",
66 res->lockname.len, res->lockname.name,
67 res->owner, res->state);
68 mlog(ML_NOTICE, " last used: %lu, on purge list: %s\n",
69 res->last_used, list_empty(&res->purge) ? "no" : "yes");
70 mlog(ML_NOTICE, " granted queue: \n");
71 list_for_each(iter2, &res->granted) {
72 lock = list_entry(iter2, struct dlm_lock, list);
73 spin_lock(&lock->spinlock);
74 mlog(ML_NOTICE, " type=%d, conv=%d, node=%u, "
75 "cookie=%"MLFu64", ast=(empty=%c,pend=%c), bast=(empty=%c,pend=%c)\n",
76 lock->ml.type, lock->ml.convert_type, lock->ml.node, lock->ml.cookie,
77 list_empty(&lock->ast_list) ? 'y' : 'n',
78 lock->ast_pending ? 'y' : 'n',
79 list_empty(&lock->bast_list) ? 'y' : 'n',
80 lock->bast_pending ? 'y' : 'n');
81 spin_unlock(&lock->spinlock);
82 }
83 mlog(ML_NOTICE, " converting queue: \n");
84 list_for_each(iter2, &res->converting) {
85 lock = list_entry(iter2, struct dlm_lock, list);
86 spin_lock(&lock->spinlock);
87 mlog(ML_NOTICE, " type=%d, conv=%d, node=%u, "
88 "cookie=%"MLFu64", ast=(empty=%c,pend=%c), bast=(empty=%c,pend=%c)\n",
89 lock->ml.type, lock->ml.convert_type, lock->ml.node, lock->ml.cookie,
90 list_empty(&lock->ast_list) ? 'y' : 'n',
91 lock->ast_pending ? 'y' : 'n',
92 list_empty(&lock->bast_list) ? 'y' : 'n',
93 lock->bast_pending ? 'y' : 'n');
94 spin_unlock(&lock->spinlock);
95 }
96 mlog(ML_NOTICE, " blocked queue: \n");
97 list_for_each(iter2, &res->blocked) {
98 lock = list_entry(iter2, struct dlm_lock, list);
99 spin_lock(&lock->spinlock);
100 mlog(ML_NOTICE, " type=%d, conv=%d, node=%u, "
101 "cookie=%"MLFu64", ast=(empty=%c,pend=%c), bast=(empty=%c,pend=%c)\n",
102 lock->ml.type, lock->ml.convert_type, lock->ml.node, lock->ml.cookie,
103 list_empty(&lock->ast_list) ? 'y' : 'n',
104 lock->ast_pending ? 'y' : 'n',
105 list_empty(&lock->bast_list) ? 'y' : 'n',
106 lock->bast_pending ? 'y' : 'n');
107 spin_unlock(&lock->spinlock);
108 }
109}
110
111void dlm_print_one_lock(struct dlm_lock *lockid)
112{
113 dlm_print_one_lock_resource(lockid->lockres);
114}
115EXPORT_SYMBOL_GPL(dlm_print_one_lock);
116
117void dlm_dump_lock_resources(struct dlm_ctxt *dlm)
118{
119 struct dlm_lock_resource *res;
120 struct list_head *iter;
121 struct list_head *bucket;
122 int i;
123
124 mlog(ML_NOTICE, "struct dlm_ctxt: %s, node=%u, key=%u\n",
125 dlm->name, dlm->node_num, dlm->key);
126 if (!dlm || !dlm->name) {
127 mlog(ML_ERROR, "dlm=%p\n", dlm);
128 return;
129 }
130
131 spin_lock(&dlm->spinlock);
132 for (i=0; i<DLM_HASH_SIZE; i++) {
133 bucket = &(dlm->resources[i]);
134 list_for_each(iter, bucket) {
135 res = list_entry(iter, struct dlm_lock_resource, list);
136 dlm_print_one_lock_resource(res);
137 }
138 }
139 spin_unlock(&dlm->spinlock);
140}
141
142static const char *dlm_errnames[] = {
143 [DLM_NORMAL] = "DLM_NORMAL",
144 [DLM_GRANTED] = "DLM_GRANTED",
145 [DLM_DENIED] = "DLM_DENIED",
146 [DLM_DENIED_NOLOCKS] = "DLM_DENIED_NOLOCKS",
147 [DLM_WORKING] = "DLM_WORKING",
148 [DLM_BLOCKED] = "DLM_BLOCKED",
149 [DLM_BLOCKED_ORPHAN] = "DLM_BLOCKED_ORPHAN",
150 [DLM_DENIED_GRACE_PERIOD] = "DLM_DENIED_GRACE_PERIOD",
151 [DLM_SYSERR] = "DLM_SYSERR",
152 [DLM_NOSUPPORT] = "DLM_NOSUPPORT",
153 [DLM_CANCELGRANT] = "DLM_CANCELGRANT",
154 [DLM_IVLOCKID] = "DLM_IVLOCKID",
155 [DLM_SYNC] = "DLM_SYNC",
156 [DLM_BADTYPE] = "DLM_BADTYPE",
157 [DLM_BADRESOURCE] = "DLM_BADRESOURCE",
158 [DLM_MAXHANDLES] = "DLM_MAXHANDLES",
159 [DLM_NOCLINFO] = "DLM_NOCLINFO",
160 [DLM_NOLOCKMGR] = "DLM_NOLOCKMGR",
161 [DLM_NOPURGED] = "DLM_NOPURGED",
162 [DLM_BADARGS] = "DLM_BADARGS",
163 [DLM_VOID] = "DLM_VOID",
164 [DLM_NOTQUEUED] = "DLM_NOTQUEUED",
165 [DLM_IVBUFLEN] = "DLM_IVBUFLEN",
166 [DLM_CVTUNGRANT] = "DLM_CVTUNGRANT",
167 [DLM_BADPARAM] = "DLM_BADPARAM",
168 [DLM_VALNOTVALID] = "DLM_VALNOTVALID",
169 [DLM_REJECTED] = "DLM_REJECTED",
170 [DLM_ABORT] = "DLM_ABORT",
171 [DLM_CANCEL] = "DLM_CANCEL",
172 [DLM_IVRESHANDLE] = "DLM_IVRESHANDLE",
173 [DLM_DEADLOCK] = "DLM_DEADLOCK",
174 [DLM_DENIED_NOASTS] = "DLM_DENIED_NOASTS",
175 [DLM_FORWARD] = "DLM_FORWARD",
176 [DLM_TIMEOUT] = "DLM_TIMEOUT",
177 [DLM_IVGROUPID] = "DLM_IVGROUPID",
178 [DLM_VERS_CONFLICT] = "DLM_VERS_CONFLICT",
179 [DLM_BAD_DEVICE_PATH] = "DLM_BAD_DEVICE_PATH",
180 [DLM_NO_DEVICE_PERMISSION] = "DLM_NO_DEVICE_PERMISSION",
181 [DLM_NO_CONTROL_DEVICE ] = "DLM_NO_CONTROL_DEVICE ",
182 [DLM_RECOVERING] = "DLM_RECOVERING",
183 [DLM_MIGRATING] = "DLM_MIGRATING",
184 [DLM_MAXSTATS] = "DLM_MAXSTATS",
185};
186
187static const char *dlm_errmsgs[] = {
188 [DLM_NORMAL] = "request in progress",
189 [DLM_GRANTED] = "request granted",
190 [DLM_DENIED] = "request denied",
191 [DLM_DENIED_NOLOCKS] = "request denied, out of system resources",
192 [DLM_WORKING] = "async request in progress",
193 [DLM_BLOCKED] = "lock request blocked",
194 [DLM_BLOCKED_ORPHAN] = "lock request blocked by a orphan lock",
195 [DLM_DENIED_GRACE_PERIOD] = "topological change in progress",
196 [DLM_SYSERR] = "system error",
197 [DLM_NOSUPPORT] = "unsupported",
198 [DLM_CANCELGRANT] = "can't cancel convert: already granted",
199 [DLM_IVLOCKID] = "bad lockid",
200 [DLM_SYNC] = "synchronous request granted",
201 [DLM_BADTYPE] = "bad resource type",
202 [DLM_BADRESOURCE] = "bad resource handle",
203 [DLM_MAXHANDLES] = "no more resource handles",
204 [DLM_NOCLINFO] = "can't contact cluster manager",
205 [DLM_NOLOCKMGR] = "can't contact lock manager",
206 [DLM_NOPURGED] = "can't contact purge daemon",
207 [DLM_BADARGS] = "bad api args",
208 [DLM_VOID] = "no status",
209 [DLM_NOTQUEUED] = "NOQUEUE was specified and request failed",
210 [DLM_IVBUFLEN] = "invalid resource name length",
211 [DLM_CVTUNGRANT] = "attempted to convert ungranted lock",
212 [DLM_BADPARAM] = "invalid lock mode specified",
213 [DLM_VALNOTVALID] = "value block has been invalidated",
214 [DLM_REJECTED] = "request rejected, unrecognized client",
215 [DLM_ABORT] = "blocked lock request cancelled",
216 [DLM_CANCEL] = "conversion request cancelled",
217 [DLM_IVRESHANDLE] = "invalid resource handle",
218 [DLM_DEADLOCK] = "deadlock recovery refused this request",
219 [DLM_DENIED_NOASTS] = "failed to allocate AST",
220 [DLM_FORWARD] = "request must wait for primary's response",
221 [DLM_TIMEOUT] = "timeout value for lock has expired",
222 [DLM_IVGROUPID] = "invalid group specification",
223 [DLM_VERS_CONFLICT] = "version conflicts prevent request handling",
224 [DLM_BAD_DEVICE_PATH] = "Locks device does not exist or path wrong",
225 [DLM_NO_DEVICE_PERMISSION] = "Client has insufficient perms for device",
226 [DLM_NO_CONTROL_DEVICE] = "Cannot set options on opened device ",
227 [DLM_RECOVERING] = "lock resource being recovered",
228 [DLM_MIGRATING] = "lock resource being migrated",
229 [DLM_MAXSTATS] = "invalid error number",
230};
231
232const char *dlm_errmsg(enum dlm_status err)
233{
234 if (err >= DLM_MAXSTATS || err < 0)
235 return dlm_errmsgs[DLM_MAXSTATS];
236 return dlm_errmsgs[err];
237}
238EXPORT_SYMBOL_GPL(dlm_errmsg);
239
240const char *dlm_errname(enum dlm_status err)
241{
242 if (err >= DLM_MAXSTATS || err < 0)
243 return dlm_errnames[DLM_MAXSTATS];
244 return dlm_errnames[err];
245}
246EXPORT_SYMBOL_GPL(dlm_errname);
generated by cgit v1.2.2 (git 2.25.0) at 2025-11-01 16:09:25 -0400