1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
|
/* -*- mode: c; c-basic-offset: 8; -*-
* vim: noexpandtab sw=8 ts=8 sts=0:
*
* dlmdebug.c
*
* debug functionality for the dlm
*
* Copyright (C) 2004 Oracle. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 021110-1307, USA.
*
*/
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/highmem.h>
#include <linux/utsname.h>
#include <linux/sysctl.h>
#include <linux/spinlock.h>
#include "cluster/heartbeat.h"
#include "cluster/nodemanager.h"
#include "cluster/tcp.h"
#include "dlmapi.h"
#include "dlmcommon.h"
#include "dlmdebug.h"
#include "dlmdomain.h"
#include "dlmdebug.h"
#define MLOG_MASK_PREFIX ML_DLM
#include "cluster/masklog.h"
void dlm_print_one_lock_resource(struct dlm_lock_resource *res)
{
mlog(ML_NOTICE, "lockres: %.*s, owner=%u, state=%u\n",
res->lockname.len, res->lockname.name,
res->owner, res->state);
spin_lock(&res->spinlock);
__dlm_print_one_lock_resource(res);
spin_unlock(&res->spinlock);
}
void __dlm_print_one_lock_resource(struct dlm_lock_resource *res)
{
struct list_head *iter2;
struct dlm_lock *lock;
assert_spin_locked(&res->spinlock);
mlog(ML_NOTICE, "lockres: %.*s, owner=%u, state=%u\n",
res->lockname.len, res->lockname.name,
res->owner, res->state);
mlog(ML_NOTICE, " last used: %lu, on purge list: %s\n",
res->last_used, list_empty(&res->purge) ? "no" : "yes");
mlog(ML_NOTICE, " granted queue: \n");
list_for_each(iter2, &res->granted) {
lock = list_entry(iter2, struct dlm_lock, list);
spin_lock(&lock->spinlock);
mlog(ML_NOTICE, " type=%d, conv=%d, node=%u, "
"cookie=%u:%llu, ast=(empty=%c,pend=%c), bast=(empty=%c,pend=%c)\n",
lock->ml.type, lock->ml.convert_type, lock->ml.node,
dlm_get_lock_cookie_node(lock->ml.cookie),
dlm_get_lock_cookie_seq(lock->ml.cookie),
list_empty(&lock->ast_list) ? 'y' : 'n',
lock->ast_pending ? 'y' : 'n',
list_empty(&lock->bast_list) ? 'y' : 'n',
lock->bast_pending ? 'y' : 'n');
spin_unlock(&lock->spinlock);
}
mlog(ML_NOTICE, " converting queue: \n");
list_for_each(iter2, &res->converting) {
lock = list_entry(iter2, struct dlm_lock, list);
spin_lock(&lock->spinlock);
mlog(ML_NOTICE, " type=%d, conv=%d, node=%u, "
"cookie=%u:%llu, ast=(empty=%c,pend=%c), bast=(empty=%c,pend=%c)\n",
lock->ml.type, lock->ml.convert_type, lock->ml.node,
dlm_get_lock_cookie_node(lock->ml.cookie),
dlm_get_lock_cookie_seq(lock->ml.cookie),
list_empty(&lock->ast_list) ? 'y' : 'n',
lock->ast_pending ? 'y' : 'n',
list_empty(&lock->bast_list) ? 'y' : 'n',
lock->bast_pending ? 'y' : 'n');
spin_unlock(&lock->spinlock);
}
mlog(ML_NOTICE, " blocked queue: \n");
list_for_each(iter2, &res->blocked) {
lock = list_entry(iter2, struct dlm_lock, list);
spin_lock(&lock->spinlock);
mlog(ML_NOTICE, " type=%d, conv=%d, node=%u, "
"cookie=%u:%llu, ast=(empty=%c,pend=%c), bast=(empty=%c,pend=%c)\n",
lock->ml.type, lock->ml.convert_type, lock->ml.node,
dlm_get_lock_cookie_node(lock->ml.cookie),
dlm_get_lock_cookie_seq(lock->ml.cookie),
list_empty(&lock->ast_list) ? 'y' : 'n',
lock->ast_pending ? 'y' : 'n',
list_empty(&lock->bast_list) ? 'y' : 'n',
lock->bast_pending ? 'y' : 'n');
spin_unlock(&lock->spinlock);
}
}
void dlm_print_one_lock(struct dlm_lock *lockid)
{
dlm_print_one_lock_resource(lockid->lockres);
}
EXPORT_SYMBOL_GPL(dlm_print_one_lock);
void dlm_dump_lock_resources(struct dlm_ctxt *dlm)
{
struct dlm_lock_resource *res;
struct hlist_node *iter;
struct hlist_head *bucket;
int i;
mlog(ML_NOTICE, "struct dlm_ctxt: %s, node=%u, key=%u\n",
dlm->name, dlm->node_num, dlm->key);
if (!dlm || !dlm->name) {
mlog(ML_ERROR, "dlm=%p\n", dlm);
return;
}
spin_lock(&dlm->spinlock);
for (i=0; i<DLM_HASH_BUCKETS; i++) {
bucket = dlm_lockres_hash(dlm, i);
hlist_for_each_entry(res, iter, bucket, hash_node)
dlm_print_one_lock_resource(res);
}
spin_unlock(&dlm->spinlock);
}
static const char *dlm_errnames[] = {
[DLM_NORMAL] = "DLM_NORMAL",
[DLM_GRANTED] = "DLM_GRANTED",
[DLM_DENIED] = "DLM_DENIED",
[DLM_DENIED_NOLOCKS] = "DLM_DENIED_NOLOCKS",
[DLM_WORKING] = "DLM_WORKING",
[DLM_BLOCKED] = "DLM_BLOCKED",
[DLM_BLOCKED_ORPHAN] = "DLM_BLOCKED_ORPHAN",
[DLM_DENIED_GRACE_PERIOD] = "DLM_DENIED_GRACE_PERIOD",
[DLM_SYSERR] = "DLM_SYSERR",
[DLM_NOSUPPORT] = "DLM_NOSUPPORT",
[DLM_CANCELGRANT] = "DLM_CANCELGRANT",
[DLM_IVLOCKID] = "DLM_IVLOCKID",
[DLM_SYNC] = "DLM_SYNC",
[DLM_BADTYPE] = "DLM_BADTYPE",
[DLM_BADRESOURCE] = "DLM_BADRESOURCE",
[DLM_MAXHANDLES] = "DLM_MAXHANDLES",
[DLM_NOCLINFO] = "DLM_NOCLINFO",
[DLM_NOLOCKMGR] = "DLM_NOLOCKMGR",
[DLM_NOPURGED] = "DLM_NOPURGED",
[DLM_BADARGS] = "DLM_BADARGS",
[DLM_VOID] = "DLM_VOID",
[DLM_NOTQUEUED] = "DLM_NOTQUEUED",
[DLM_IVBUFLEN] = "DLM_IVBUFLEN",
[DLM_CVTUNGRANT] = "DLM_CVTUNGRANT",
[DLM_BADPARAM] = "DLM_BADPARAM",
[DLM_VALNOTVALID] = "DLM_VALNOTVALID",
[DLM_REJECTED] = "DLM_REJECTED",
[DLM_ABORT] = "DLM_ABORT",
[DLM_CANCEL] = "DLM_CANCEL",
[DLM_IVRESHANDLE] = "DLM_IVRESHANDLE",
[DLM_DEADLOCK] = "DLM_DEADLOCK",
[DLM_DENIED_NOASTS] = "DLM_DENIED_NOASTS",
[DLM_FORWARD] = "DLM_FORWARD",
[DLM_TIMEOUT] = "DLM_TIMEOUT",
[DLM_IVGROUPID] = "DLM_IVGROUPID",
[DLM_VERS_CONFLICT] = "DLM_VERS_CONFLICT",
[DLM_BAD_DEVICE_PATH] = "DLM_BAD_DEVICE_PATH",
[DLM_NO_DEVICE_PERMISSION] = "DLM_NO_DEVICE_PERMISSION",
[DLM_NO_CONTROL_DEVICE ] = "DLM_NO_CONTROL_DEVICE ",
[DLM_RECOVERING] = "DLM_RECOVERING",
[DLM_MIGRATING] = "DLM_MIGRATING",
[DLM_MAXSTATS] = "DLM_MAXSTATS",
};
static const char *dlm_errmsgs[] = {
[DLM_NORMAL] = "request in progress",
[DLM_GRANTED] = "request granted",
[DLM_DENIED] = "request denied",
[DLM_DENIED_NOLOCKS] = "request denied, out of system resources",
[DLM_WORKING] = "async request in progress",
[DLM_BLOCKED] = "lock request blocked",
[DLM_BLOCKED_ORPHAN] = "lock request blocked by a orphan lock",
[DLM_DENIED_GRACE_PERIOD] = "topological change in progress",
[DLM_SYSERR] = "system error",
[DLM_NOSUPPORT] = "unsupported",
[DLM_CANCELGRANT] = "can't cancel convert: already granted",
[DLM_IVLOCKID] = "bad lockid",
[DLM_SYNC] = "synchronous request granted",
[DLM_BADTYPE] = "bad resource type",
[DLM_BADRESOURCE] = "bad resource handle",
[DLM_MAXHANDLES] = "no more resource handles",
[DLM_NOCLINFO] = "can't contact cluster manager",
[DLM_NOLOCKMGR] = "can't contact lock manager",
[DLM_NOPURGED] = "can't contact purge daemon",
[DLM_BADARGS] = "bad api args",
[DLM_VOID] = "no status",
[DLM_NOTQUEUED] = "NOQUEUE was specified and request failed",
[DLM_IVBUFLEN] = "invalid resource name length",
[DLM_CVTUNGRANT] = "attempted to convert ungranted lock",
[DLM_BADPARAM] = "invalid lock mode specified",
[DLM_VALNOTVALID] = "value block has been invalidated",
[DLM_REJECTED] = "request rejected, unrecognized client",
[DLM_ABORT] = "blocked lock request cancelled",
[DLM_CANCEL] = "conversion request cancelled",
[DLM_IVRESHANDLE] = "invalid resource handle",
[DLM_DEADLOCK] = "deadlock recovery refused this request",
[DLM_DENIED_NOASTS] = "failed to allocate AST",
[DLM_FORWARD] = "request must wait for primary's response",
[DLM_TIMEOUT] = "timeout value for lock has expired",
[DLM_IVGROUPID] = "invalid group specification",
[DLM_VERS_CONFLICT] = "version conflicts prevent request handling",
[DLM_BAD_DEVICE_PATH] = "Locks device does not exist or path wrong",
[DLM_NO_DEVICE_PERMISSION] = "Client has insufficient perms for device",
[DLM_NO_CONTROL_DEVICE] = "Cannot set options on opened device ",
[DLM_RECOVERING] = "lock resource being recovered",
[DLM_MIGRATING] = "lock resource being migrated",
[DLM_MAXSTATS] = "invalid error number",
};
const char *dlm_errmsg(enum dlm_status err)
{
if (err >= DLM_MAXSTATS || err < 0)
return dlm_errmsgs[DLM_MAXSTATS];
return dlm_errmsgs[err];
}
EXPORT_SYMBOL_GPL(dlm_errmsg);
const char *dlm_errname(enum dlm_status err)
{
if (err >= DLM_MAXSTATS || err < 0)
return dlm_errnames[DLM_MAXSTATS];
return dlm_errnames[err];
}
EXPORT_SYMBOL_GPL(dlm_errname);
|
