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
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
|
#include "ceph_debug.h"
#include <linux/module.h>
#include <linux/ctype.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include "super.h"
#include "mds_client.h"
/*
* Implement /sys/kernel/debug/ceph fun
*
* /sys/kernel/debug/ceph/client* - an instance of the ceph client
* .../osdmap - current osdmap
* .../mdsmap - current mdsmap
* .../monmap - current monmap
* .../osdc - active osd requests
* .../mdsc - active mds requests
* .../monc - mon client state
* .../dentry_lru - dump contents of dentry lru
* .../caps - expose cap (reservation) stats
*/
static struct dentry *ceph_debugfs_dir;
static int monmap_show(struct seq_file *s, void *p)
{
int i;
struct ceph_client *client = s->private;
if (client->monc.monmap == NULL)
return 0;
seq_printf(s, "epoch %d\n", client->monc.monmap->epoch);
for (i = 0; i < client->monc.monmap->num_mon; i++) {
struct ceph_entity_inst *inst =
&client->monc.monmap->mon_inst[i];
seq_printf(s, "\t%s%lld\t%s\n",
ENTITY_NAME(inst->name),
pr_addr(&inst->addr.in_addr));
}
return 0;
}
static int mdsmap_show(struct seq_file *s, void *p)
{
int i;
struct ceph_client *client = s->private;
if (client->mdsc.mdsmap == NULL)
return 0;
seq_printf(s, "epoch %d\n", client->mdsc.mdsmap->m_epoch);
seq_printf(s, "root %d\n", client->mdsc.mdsmap->m_root);
seq_printf(s, "session_timeout %d\n",
client->mdsc.mdsmap->m_session_timeout);
seq_printf(s, "session_autoclose %d\n",
client->mdsc.mdsmap->m_session_autoclose);
for (i = 0; i < client->mdsc.mdsmap->m_max_mds; i++) {
struct ceph_entity_addr *addr =
&client->mdsc.mdsmap->m_info[i].addr;
int state = client->mdsc.mdsmap->m_info[i].state;
seq_printf(s, "\tmds%d\t%s\t(%s)\n", i, pr_addr(&addr->in_addr),
ceph_mds_state_name(state));
}
return 0;
}
static int osdmap_show(struct seq_file *s, void *p)
{
int i;
struct ceph_client *client = s->private;
if (client->osdc.osdmap == NULL)
return 0;
seq_printf(s, "epoch %d\n", client->osdc.osdmap->epoch);
seq_printf(s, "flags%s%s\n",
(client->osdc.osdmap->flags & CEPH_OSDMAP_NEARFULL) ?
" NEARFULL" : "",
(client->osdc.osdmap->flags & CEPH_OSDMAP_FULL) ?
" FULL" : "");
for (i = 0; i < client->osdc.osdmap->num_pools; i++) {
struct ceph_pg_pool_info *pool =
&client->osdc.osdmap->pg_pool[i];
seq_printf(s, "pg_pool %d pg_num %d / %d, lpg_num %d / %d\n",
i, pool->v.pg_num, pool->pg_num_mask,
pool->v.lpg_num, pool->lpg_num_mask);
}
for (i = 0; i < client->osdc.osdmap->max_osd; i++) {
struct ceph_entity_addr *addr =
&client->osdc.osdmap->osd_addr[i];
int state = client->osdc.osdmap->osd_state[i];
char sb[64];
seq_printf(s, "\tosd%d\t%s\t%3d%%\t(%s)\n",
i, pr_addr(&addr->in_addr),
((client->osdc.osdmap->osd_weight[i]*100) >> 16),
ceph_osdmap_state_str(sb, sizeof(sb), state));
}
return 0;
}
static int monc_show(struct seq_file *s, void *p)
{
struct ceph_client *client = s->private;
struct ceph_mon_statfs_request *req;
u64 nexttid = 0;
int got;
struct ceph_mon_client *monc = &client->monc;
mutex_lock(&monc->mutex);
if (monc->have_mdsmap)
seq_printf(s, "have mdsmap %u\n", (unsigned)monc->have_mdsmap);
if (monc->have_osdmap)
seq_printf(s, "have osdmap %u\n", (unsigned)monc->have_osdmap);
if (monc->want_next_osdmap)
seq_printf(s, "want next osdmap\n");
while (nexttid < monc->last_tid) {
got = radix_tree_gang_lookup(&monc->statfs_request_tree,
(void **)&req, nexttid, 1);
if (got == 0)
break;
nexttid = req->tid + 1;
seq_printf(s, "%lld statfs\n", req->tid);
}
mutex_unlock(&monc->mutex);
return 0;
}
static int mdsc_show(struct seq_file *s, void *p)
{
struct ceph_client *client = s->private;
struct ceph_mds_request *req;
u64 nexttid = 0;
int got;
struct ceph_mds_client *mdsc = &client->mdsc;
int pathlen;
u64 pathbase;
char *path;
mutex_lock(&mdsc->mutex);
while (nexttid < mdsc->last_tid) {
got = radix_tree_gang_lookup(&mdsc->request_tree,
(void **)&req, nexttid, 1);
if (got == 0)
break;
nexttid = req->r_tid + 1;
if (req->r_request)
seq_printf(s, "%lld\tmds%d\t", req->r_tid, req->r_mds);
else
seq_printf(s, "%lld\t(no request)\t", req->r_tid);
seq_printf(s, "%s", ceph_mds_op_name(req->r_op));
if (req->r_got_unsafe)
seq_printf(s, "\t(unsafe)");
else
seq_printf(s, "\t");
if (req->r_inode) {
seq_printf(s, " #%llx", ceph_ino(req->r_inode));
} else if (req->r_dentry) {
path = ceph_mdsc_build_path(req->r_dentry, &pathlen,
&pathbase, 0);
spin_lock(&req->r_dentry->d_lock);
seq_printf(s, " #%llx/%.*s (%s)",
ceph_ino(req->r_dentry->d_parent->d_inode),
req->r_dentry->d_name.len,
req->r_dentry->d_name.name,
path ? path : "");
spin_unlock(&req->r_dentry->d_lock);
kfree(path);
} else if (req->r_path1) {
seq_printf(s, " #%llx/%s", req->r_ino1.ino,
req->r_path1);
}
if (req->r_old_dentry) {
path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen,
&pathbase, 0);
spin_lock(&req->r_old_dentry->d_lock);
seq_printf(s, " #%llx/%.*s (%s)",
ceph_ino(req->r_old_dentry->d_parent->d_inode),
req->r_old_dentry->d_name.len,
req->r_old_dentry->d_name.name,
path ? path : "");
spin_unlock(&req->r_old_dentry->d_lock);
kfree(path);
} else if (req->r_path2) {
if (req->r_ino2.ino)
seq_printf(s, " #%llx/%s", req->r_ino2.ino,
req->r_path2);
else
seq_printf(s, " %s", req->r_path2);
}
seq_printf(s, "\n");
}
mutex_unlock(&mdsc->mutex);
return 0;
}
static int osdc_show(struct seq_file *s, void *pp)
{
struct ceph_client *client = s->private;
struct ceph_osd_client *osdc = &client->osdc;
struct rb_node *p;
mutex_lock(&osdc->request_mutex);
for (p = rb_first(&osdc->requests); p; p = rb_next(p)) {
struct ceph_osd_request *req;
struct ceph_osd_request_head *head;
struct ceph_osd_op *op;
int num_ops;
int opcode, olen;
int i;
req = rb_entry(p, struct ceph_osd_request, r_node);
seq_printf(s, "%lld\tosd%d\t", req->r_tid,
req->r_osd ? req->r_osd->o_osd : -1);
head = req->r_request->front.iov_base;
op = (void *)(head + 1);
num_ops = le16_to_cpu(head->num_ops);
olen = le32_to_cpu(head->object_len);
seq_printf(s, "%.*s", olen,
(const char *)(head->ops + num_ops));
if (req->r_reassert_version.epoch)
seq_printf(s, "\t%u'%llu",
(unsigned)le32_to_cpu(req->r_reassert_version.epoch),
le64_to_cpu(req->r_reassert_version.version));
else
seq_printf(s, "\t");
for (i = 0; i < num_ops; i++) {
opcode = le16_to_cpu(op->op);
seq_printf(s, "\t%s", ceph_osd_op_name(opcode));
op++;
}
seq_printf(s, "\n");
}
mutex_unlock(&osdc->request_mutex);
return 0;
}
static int caps_show(struct seq_file *s, void *p)
{
struct ceph_client *client = p;
int total, avail, used, reserved;
ceph_reservation_status(client, &total, &avail, &used, &reserved);
seq_printf(s, "total\t\t%d\n"
"avail\t\t%d\n"
"used\t\t%d\n"
"reserved\t%d\n",
total, avail, used, reserved);
return 0;
}
static int dentry_lru_show(struct seq_file *s, void *ptr)
{
struct ceph_client *client = s->private;
struct ceph_mds_client *mdsc = &client->mdsc;
struct ceph_dentry_info *di;
spin_lock(&mdsc->dentry_lru_lock);
list_for_each_entry(di, &mdsc->dentry_lru, lru) {
struct dentry *dentry = di->dentry;
seq_printf(s, "%p %p\t%.*s\n",
di, dentry, dentry->d_name.len, dentry->d_name.name);
}
spin_unlock(&mdsc->dentry_lru_lock);
return 0;
}
#define DEFINE_SHOW_FUNC(name) \
static int name##_open(struct inode *inode, struct file *file) \
{ \
struct seq_file *sf; \
int ret; \
\
ret = single_open(file, name, NULL); \
sf = file->private_data; \
sf->private = inode->i_private; \
return ret; \
} \
\
static const struct file_operations name##_fops = { \
.open = name##_open, \
.read = seq_read, \
.llseek = seq_lseek, \
.release = single_release, \
};
DEFINE_SHOW_FUNC(monmap_show)
DEFINE_SHOW_FUNC(mdsmap_show)
DEFINE_SHOW_FUNC(osdmap_show)
DEFINE_SHOW_FUNC(monc_show)
DEFINE_SHOW_FUNC(mdsc_show)
DEFINE_SHOW_FUNC(osdc_show)
DEFINE_SHOW_FUNC(dentry_lru_show)
DEFINE_SHOW_FUNC(caps_show)
int __init ceph_debugfs_init(void)
{
ceph_debugfs_dir = debugfs_create_dir("ceph", NULL);
if (!ceph_debugfs_dir)
return -ENOMEM;
return 0;
}
void ceph_debugfs_cleanup(void)
{
debugfs_remove(ceph_debugfs_dir);
}
int ceph_debugfs_client_init(struct ceph_client *client)
{
int ret = 0;
char name[80];
snprintf(name, sizeof(name), FSID_FORMAT ".client%lld",
PR_FSID(&client->monc.monmap->fsid), client->whoami);
client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);
if (!client->debugfs_dir)
goto out;
client->monc.debugfs_file = debugfs_create_file("monc",
0600,
client->debugfs_dir,
client,
&monc_show_fops);
if (!client->monc.debugfs_file)
goto out;
client->mdsc.debugfs_file = debugfs_create_file("mdsc",
0600,
client->debugfs_dir,
client,
&mdsc_show_fops);
if (!client->mdsc.debugfs_file)
goto out;
client->osdc.debugfs_file = debugfs_create_file("osdc",
0600,
client->debugfs_dir,
client,
&osdc_show_fops);
if (!client->osdc.debugfs_file)
goto out;
client->debugfs_monmap = debugfs_create_file("monmap",
0600,
client->debugfs_dir,
client,
&monmap_show_fops);
if (!client->debugfs_monmap)
goto out;
client->debugfs_mdsmap = debugfs_create_file("mdsmap",
0600,
client->debugfs_dir,
client,
&mdsmap_show_fops);
if (!client->debugfs_mdsmap)
goto out;
client->debugfs_osdmap = debugfs_create_file("osdmap",
0600,
client->debugfs_dir,
client,
&osdmap_show_fops);
if (!client->debugfs_osdmap)
goto out;
client->debugfs_dentry_lru = debugfs_create_file("dentry_lru",
0600,
client->debugfs_dir,
client,
&dentry_lru_show_fops);
if (!client->debugfs_dentry_lru)
goto out;
client->debugfs_caps = debugfs_create_file("caps",
0400,
client->debugfs_dir,
client,
&caps_show_fops);
if (!client->debugfs_caps)
goto out;
return 0;
out:
ceph_debugfs_client_cleanup(client);
return ret;
}
void ceph_debugfs_client_cleanup(struct ceph_client *client)
{
debugfs_remove(client->debugfs_caps);
debugfs_remove(client->debugfs_dentry_lru);
debugfs_remove(client->debugfs_osdmap);
debugfs_remove(client->debugfs_mdsmap);
debugfs_remove(client->debugfs_monmap);
debugfs_remove(client->osdc.debugfs_file);
debugfs_remove(client->mdsc.debugfs_file);
debugfs_remove(client->monc.debugfs_file);
debugfs_remove(client->debugfs_dir);
}
|
