Commit | Line | Data |
---|---|---|
76aa844d SW |
1 | #include "ceph_debug.h" |
2 | ||
06edf046 | 3 | #include <linux/device.h> |
5a0e3ad6 | 4 | #include <linux/slab.h> |
76aa844d SW |
5 | #include <linux/module.h> |
6 | #include <linux/ctype.h> | |
7 | #include <linux/debugfs.h> | |
8 | #include <linux/seq_file.h> | |
9 | ||
10 | #include "super.h" | |
11 | #include "mds_client.h" | |
0743304d SW |
12 | #include "mon_client.h" |
13 | #include "auth.h" | |
76aa844d | 14 | |
039934b8 SW |
15 | #ifdef CONFIG_DEBUG_FS |
16 | ||
76aa844d SW |
17 | /* |
18 | * Implement /sys/kernel/debug/ceph fun | |
19 | * | |
20 | * /sys/kernel/debug/ceph/client* - an instance of the ceph client | |
21 | * .../osdmap - current osdmap | |
22 | * .../mdsmap - current mdsmap | |
23 | * .../monmap - current monmap | |
24 | * .../osdc - active osd requests | |
25 | * .../mdsc - active mds requests | |
26 | * .../monc - mon client state | |
27 | * .../dentry_lru - dump contents of dentry lru | |
28 | * .../caps - expose cap (reservation) stats | |
06edf046 | 29 | * .../bdi - symlink to ../../bdi/something |
76aa844d SW |
30 | */ |
31 | ||
32 | static struct dentry *ceph_debugfs_dir; | |
33 | ||
34 | static int monmap_show(struct seq_file *s, void *p) | |
35 | { | |
36 | int i; | |
37 | struct ceph_client *client = s->private; | |
38 | ||
39 | if (client->monc.monmap == NULL) | |
40 | return 0; | |
41 | ||
42 | seq_printf(s, "epoch %d\n", client->monc.monmap->epoch); | |
43 | for (i = 0; i < client->monc.monmap->num_mon; i++) { | |
44 | struct ceph_entity_inst *inst = | |
45 | &client->monc.monmap->mon_inst[i]; | |
46 | ||
47 | seq_printf(s, "\t%s%lld\t%s\n", | |
48 | ENTITY_NAME(inst->name), | |
49 | pr_addr(&inst->addr.in_addr)); | |
50 | } | |
51 | return 0; | |
52 | } | |
53 | ||
54 | static int mdsmap_show(struct seq_file *s, void *p) | |
55 | { | |
56 | int i; | |
57 | struct ceph_client *client = s->private; | |
58 | ||
59 | if (client->mdsc.mdsmap == NULL) | |
60 | return 0; | |
61 | seq_printf(s, "epoch %d\n", client->mdsc.mdsmap->m_epoch); | |
62 | seq_printf(s, "root %d\n", client->mdsc.mdsmap->m_root); | |
63 | seq_printf(s, "session_timeout %d\n", | |
64 | client->mdsc.mdsmap->m_session_timeout); | |
65 | seq_printf(s, "session_autoclose %d\n", | |
66 | client->mdsc.mdsmap->m_session_autoclose); | |
67 | for (i = 0; i < client->mdsc.mdsmap->m_max_mds; i++) { | |
68 | struct ceph_entity_addr *addr = | |
69 | &client->mdsc.mdsmap->m_info[i].addr; | |
70 | int state = client->mdsc.mdsmap->m_info[i].state; | |
71 | ||
72 | seq_printf(s, "\tmds%d\t%s\t(%s)\n", i, pr_addr(&addr->in_addr), | |
73 | ceph_mds_state_name(state)); | |
74 | } | |
75 | return 0; | |
76 | } | |
77 | ||
78 | static int osdmap_show(struct seq_file *s, void *p) | |
79 | { | |
80 | int i; | |
81 | struct ceph_client *client = s->private; | |
4fc51be8 | 82 | struct rb_node *n; |
76aa844d SW |
83 | |
84 | if (client->osdc.osdmap == NULL) | |
85 | return 0; | |
86 | seq_printf(s, "epoch %d\n", client->osdc.osdmap->epoch); | |
87 | seq_printf(s, "flags%s%s\n", | |
88 | (client->osdc.osdmap->flags & CEPH_OSDMAP_NEARFULL) ? | |
89 | " NEARFULL" : "", | |
90 | (client->osdc.osdmap->flags & CEPH_OSDMAP_FULL) ? | |
91 | " FULL" : ""); | |
4fc51be8 | 92 | for (n = rb_first(&client->osdc.osdmap->pg_pools); n; n = rb_next(n)) { |
76aa844d | 93 | struct ceph_pg_pool_info *pool = |
4fc51be8 | 94 | rb_entry(n, struct ceph_pg_pool_info, node); |
76aa844d | 95 | seq_printf(s, "pg_pool %d pg_num %d / %d, lpg_num %d / %d\n", |
4fc51be8 | 96 | pool->id, pool->v.pg_num, pool->pg_num_mask, |
76aa844d SW |
97 | pool->v.lpg_num, pool->lpg_num_mask); |
98 | } | |
99 | for (i = 0; i < client->osdc.osdmap->max_osd; i++) { | |
100 | struct ceph_entity_addr *addr = | |
101 | &client->osdc.osdmap->osd_addr[i]; | |
102 | int state = client->osdc.osdmap->osd_state[i]; | |
103 | char sb[64]; | |
104 | ||
105 | seq_printf(s, "\tosd%d\t%s\t%3d%%\t(%s)\n", | |
106 | i, pr_addr(&addr->in_addr), | |
107 | ((client->osdc.osdmap->osd_weight[i]*100) >> 16), | |
108 | ceph_osdmap_state_str(sb, sizeof(sb), state)); | |
109 | } | |
110 | return 0; | |
111 | } | |
112 | ||
113 | static int monc_show(struct seq_file *s, void *p) | |
114 | { | |
115 | struct ceph_client *client = s->private; | |
f8c76f6f | 116 | struct ceph_mon_generic_request *req; |
76aa844d | 117 | struct ceph_mon_client *monc = &client->monc; |
85ff03f6 | 118 | struct rb_node *rp; |
76aa844d SW |
119 | |
120 | mutex_lock(&monc->mutex); | |
121 | ||
122 | if (monc->have_mdsmap) | |
123 | seq_printf(s, "have mdsmap %u\n", (unsigned)monc->have_mdsmap); | |
124 | if (monc->have_osdmap) | |
125 | seq_printf(s, "have osdmap %u\n", (unsigned)monc->have_osdmap); | |
126 | if (monc->want_next_osdmap) | |
127 | seq_printf(s, "want next osdmap\n"); | |
128 | ||
f8c76f6f YS |
129 | for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) { |
130 | __u16 op; | |
131 | req = rb_entry(rp, struct ceph_mon_generic_request, node); | |
132 | op = le16_to_cpu(req->request->hdr.type); | |
133 | if (op == CEPH_MSG_STATFS) | |
134 | seq_printf(s, "%lld statfs\n", req->tid); | |
135 | else | |
136 | seq_printf(s, "%lld unknown\n", req->tid); | |
76aa844d | 137 | } |
76aa844d | 138 | |
85ff03f6 | 139 | mutex_unlock(&monc->mutex); |
76aa844d SW |
140 | return 0; |
141 | } | |
142 | ||
143 | static int mdsc_show(struct seq_file *s, void *p) | |
144 | { | |
145 | struct ceph_client *client = s->private; | |
76aa844d | 146 | struct ceph_mds_client *mdsc = &client->mdsc; |
44ca18f2 SW |
147 | struct ceph_mds_request *req; |
148 | struct rb_node *rp; | |
76aa844d SW |
149 | int pathlen; |
150 | u64 pathbase; | |
151 | char *path; | |
152 | ||
153 | mutex_lock(&mdsc->mutex); | |
44ca18f2 SW |
154 | for (rp = rb_first(&mdsc->request_tree); rp; rp = rb_next(rp)) { |
155 | req = rb_entry(rp, struct ceph_mds_request, r_node); | |
76aa844d SW |
156 | |
157 | if (req->r_request) | |
158 | seq_printf(s, "%lld\tmds%d\t", req->r_tid, req->r_mds); | |
159 | else | |
160 | seq_printf(s, "%lld\t(no request)\t", req->r_tid); | |
161 | ||
162 | seq_printf(s, "%s", ceph_mds_op_name(req->r_op)); | |
163 | ||
164 | if (req->r_got_unsafe) | |
165 | seq_printf(s, "\t(unsafe)"); | |
166 | else | |
167 | seq_printf(s, "\t"); | |
168 | ||
169 | if (req->r_inode) { | |
170 | seq_printf(s, " #%llx", ceph_ino(req->r_inode)); | |
171 | } else if (req->r_dentry) { | |
172 | path = ceph_mdsc_build_path(req->r_dentry, &pathlen, | |
173 | &pathbase, 0); | |
174 | spin_lock(&req->r_dentry->d_lock); | |
175 | seq_printf(s, " #%llx/%.*s (%s)", | |
176 | ceph_ino(req->r_dentry->d_parent->d_inode), | |
177 | req->r_dentry->d_name.len, | |
178 | req->r_dentry->d_name.name, | |
179 | path ? path : ""); | |
180 | spin_unlock(&req->r_dentry->d_lock); | |
181 | kfree(path); | |
182 | } else if (req->r_path1) { | |
183 | seq_printf(s, " #%llx/%s", req->r_ino1.ino, | |
184 | req->r_path1); | |
185 | } | |
186 | ||
187 | if (req->r_old_dentry) { | |
188 | path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen, | |
189 | &pathbase, 0); | |
190 | spin_lock(&req->r_old_dentry->d_lock); | |
191 | seq_printf(s, " #%llx/%.*s (%s)", | |
192 | ceph_ino(req->r_old_dentry->d_parent->d_inode), | |
193 | req->r_old_dentry->d_name.len, | |
194 | req->r_old_dentry->d_name.name, | |
195 | path ? path : ""); | |
196 | spin_unlock(&req->r_old_dentry->d_lock); | |
197 | kfree(path); | |
198 | } else if (req->r_path2) { | |
199 | if (req->r_ino2.ino) | |
200 | seq_printf(s, " #%llx/%s", req->r_ino2.ino, | |
201 | req->r_path2); | |
202 | else | |
203 | seq_printf(s, " %s", req->r_path2); | |
204 | } | |
205 | ||
206 | seq_printf(s, "\n"); | |
207 | } | |
208 | mutex_unlock(&mdsc->mutex); | |
209 | ||
210 | return 0; | |
211 | } | |
212 | ||
213 | static int osdc_show(struct seq_file *s, void *pp) | |
214 | { | |
215 | struct ceph_client *client = s->private; | |
216 | struct ceph_osd_client *osdc = &client->osdc; | |
217 | struct rb_node *p; | |
218 | ||
219 | mutex_lock(&osdc->request_mutex); | |
220 | for (p = rb_first(&osdc->requests); p; p = rb_next(p)) { | |
221 | struct ceph_osd_request *req; | |
222 | struct ceph_osd_request_head *head; | |
223 | struct ceph_osd_op *op; | |
224 | int num_ops; | |
225 | int opcode, olen; | |
226 | int i; | |
227 | ||
228 | req = rb_entry(p, struct ceph_osd_request, r_node); | |
229 | ||
7740a42f SW |
230 | seq_printf(s, "%lld\tosd%d\t%d.%x\t", req->r_tid, |
231 | req->r_osd ? req->r_osd->o_osd : -1, | |
232 | le32_to_cpu(req->r_pgid.pool), | |
233 | le16_to_cpu(req->r_pgid.ps)); | |
76aa844d SW |
234 | |
235 | head = req->r_request->front.iov_base; | |
236 | op = (void *)(head + 1); | |
237 | ||
238 | num_ops = le16_to_cpu(head->num_ops); | |
239 | olen = le32_to_cpu(head->object_len); | |
240 | seq_printf(s, "%.*s", olen, | |
241 | (const char *)(head->ops + num_ops)); | |
242 | ||
243 | if (req->r_reassert_version.epoch) | |
244 | seq_printf(s, "\t%u'%llu", | |
245 | (unsigned)le32_to_cpu(req->r_reassert_version.epoch), | |
246 | le64_to_cpu(req->r_reassert_version.version)); | |
247 | else | |
248 | seq_printf(s, "\t"); | |
249 | ||
250 | for (i = 0; i < num_ops; i++) { | |
251 | opcode = le16_to_cpu(op->op); | |
252 | seq_printf(s, "\t%s", ceph_osd_op_name(opcode)); | |
253 | op++; | |
254 | } | |
255 | ||
256 | seq_printf(s, "\n"); | |
257 | } | |
258 | mutex_unlock(&osdc->request_mutex); | |
259 | return 0; | |
260 | } | |
261 | ||
262 | static int caps_show(struct seq_file *s, void *p) | |
263 | { | |
bfaf148e | 264 | struct ceph_client *client = s->private; |
85ccce43 | 265 | int total, avail, used, reserved, min; |
76aa844d | 266 | |
85ccce43 | 267 | ceph_reservation_status(client, &total, &avail, &used, &reserved, &min); |
76aa844d | 268 | seq_printf(s, "total\t\t%d\n" |
85ccce43 SW |
269 | "avail\t\t%d\n" |
270 | "used\t\t%d\n" | |
271 | "reserved\t%d\n" | |
272 | "min\t%d\n", | |
273 | total, avail, used, reserved, min); | |
76aa844d SW |
274 | return 0; |
275 | } | |
276 | ||
277 | static int dentry_lru_show(struct seq_file *s, void *ptr) | |
278 | { | |
279 | struct ceph_client *client = s->private; | |
280 | struct ceph_mds_client *mdsc = &client->mdsc; | |
281 | struct ceph_dentry_info *di; | |
282 | ||
283 | spin_lock(&mdsc->dentry_lru_lock); | |
284 | list_for_each_entry(di, &mdsc->dentry_lru, lru) { | |
285 | struct dentry *dentry = di->dentry; | |
286 | seq_printf(s, "%p %p\t%.*s\n", | |
287 | di, dentry, dentry->d_name.len, dentry->d_name.name); | |
288 | } | |
289 | spin_unlock(&mdsc->dentry_lru_lock); | |
290 | ||
291 | return 0; | |
292 | } | |
293 | ||
294 | #define DEFINE_SHOW_FUNC(name) \ | |
295 | static int name##_open(struct inode *inode, struct file *file) \ | |
296 | { \ | |
297 | struct seq_file *sf; \ | |
298 | int ret; \ | |
299 | \ | |
300 | ret = single_open(file, name, NULL); \ | |
301 | sf = file->private_data; \ | |
302 | sf->private = inode->i_private; \ | |
303 | return ret; \ | |
304 | } \ | |
305 | \ | |
306 | static const struct file_operations name##_fops = { \ | |
307 | .open = name##_open, \ | |
308 | .read = seq_read, \ | |
309 | .llseek = seq_lseek, \ | |
310 | .release = single_release, \ | |
311 | }; | |
312 | ||
313 | DEFINE_SHOW_FUNC(monmap_show) | |
314 | DEFINE_SHOW_FUNC(mdsmap_show) | |
315 | DEFINE_SHOW_FUNC(osdmap_show) | |
316 | DEFINE_SHOW_FUNC(monc_show) | |
317 | DEFINE_SHOW_FUNC(mdsc_show) | |
318 | DEFINE_SHOW_FUNC(osdc_show) | |
319 | DEFINE_SHOW_FUNC(dentry_lru_show) | |
320 | DEFINE_SHOW_FUNC(caps_show) | |
321 | ||
2baba250 YS |
322 | static int congestion_kb_set(void *data, u64 val) |
323 | { | |
324 | struct ceph_client *client = (struct ceph_client *)data; | |
325 | ||
326 | if (client) | |
327 | client->mount_args->congestion_kb = (int)val; | |
328 | ||
329 | return 0; | |
330 | } | |
331 | ||
332 | static int congestion_kb_get(void *data, u64 *val) | |
333 | { | |
334 | struct ceph_client *client = (struct ceph_client *)data; | |
335 | ||
336 | if (client) | |
337 | *val = (u64)client->mount_args->congestion_kb; | |
338 | ||
339 | return 0; | |
340 | } | |
341 | ||
342 | ||
343 | DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops, congestion_kb_get, | |
344 | congestion_kb_set, "%llu\n"); | |
345 | ||
76aa844d SW |
346 | int __init ceph_debugfs_init(void) |
347 | { | |
348 | ceph_debugfs_dir = debugfs_create_dir("ceph", NULL); | |
349 | if (!ceph_debugfs_dir) | |
350 | return -ENOMEM; | |
351 | return 0; | |
352 | } | |
353 | ||
354 | void ceph_debugfs_cleanup(void) | |
355 | { | |
356 | debugfs_remove(ceph_debugfs_dir); | |
357 | } | |
358 | ||
359 | int ceph_debugfs_client_init(struct ceph_client *client) | |
360 | { | |
361 | int ret = 0; | |
362 | char name[80]; | |
363 | ||
364 | snprintf(name, sizeof(name), FSID_FORMAT ".client%lld", | |
0743304d | 365 | PR_FSID(&client->fsid), client->monc.auth->global_id); |
76aa844d SW |
366 | |
367 | client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir); | |
368 | if (!client->debugfs_dir) | |
369 | goto out; | |
370 | ||
371 | client->monc.debugfs_file = debugfs_create_file("monc", | |
372 | 0600, | |
373 | client->debugfs_dir, | |
374 | client, | |
375 | &monc_show_fops); | |
376 | if (!client->monc.debugfs_file) | |
377 | goto out; | |
378 | ||
379 | client->mdsc.debugfs_file = debugfs_create_file("mdsc", | |
380 | 0600, | |
381 | client->debugfs_dir, | |
382 | client, | |
383 | &mdsc_show_fops); | |
384 | if (!client->mdsc.debugfs_file) | |
385 | goto out; | |
386 | ||
387 | client->osdc.debugfs_file = debugfs_create_file("osdc", | |
388 | 0600, | |
389 | client->debugfs_dir, | |
390 | client, | |
391 | &osdc_show_fops); | |
392 | if (!client->osdc.debugfs_file) | |
393 | goto out; | |
394 | ||
395 | client->debugfs_monmap = debugfs_create_file("monmap", | |
396 | 0600, | |
397 | client->debugfs_dir, | |
398 | client, | |
399 | &monmap_show_fops); | |
400 | if (!client->debugfs_monmap) | |
401 | goto out; | |
402 | ||
403 | client->debugfs_mdsmap = debugfs_create_file("mdsmap", | |
404 | 0600, | |
405 | client->debugfs_dir, | |
406 | client, | |
407 | &mdsmap_show_fops); | |
408 | if (!client->debugfs_mdsmap) | |
409 | goto out; | |
410 | ||
411 | client->debugfs_osdmap = debugfs_create_file("osdmap", | |
412 | 0600, | |
413 | client->debugfs_dir, | |
414 | client, | |
415 | &osdmap_show_fops); | |
416 | if (!client->debugfs_osdmap) | |
417 | goto out; | |
418 | ||
419 | client->debugfs_dentry_lru = debugfs_create_file("dentry_lru", | |
420 | 0600, | |
421 | client->debugfs_dir, | |
422 | client, | |
423 | &dentry_lru_show_fops); | |
424 | if (!client->debugfs_dentry_lru) | |
425 | goto out; | |
426 | ||
427 | client->debugfs_caps = debugfs_create_file("caps", | |
428 | 0400, | |
429 | client->debugfs_dir, | |
430 | client, | |
431 | &caps_show_fops); | |
432 | if (!client->debugfs_caps) | |
433 | goto out; | |
434 | ||
2baba250 YS |
435 | client->debugfs_congestion_kb = debugfs_create_file("writeback_congestion_kb", |
436 | 0600, | |
437 | client->debugfs_dir, | |
438 | client, | |
439 | &congestion_kb_fops); | |
440 | if (!client->debugfs_congestion_kb) | |
441 | goto out; | |
442 | ||
06edf046 SW |
443 | sprintf(name, "../../bdi/%s", dev_name(client->sb->s_bdi->dev)); |
444 | client->debugfs_bdi = debugfs_create_symlink("bdi", client->debugfs_dir, | |
445 | name); | |
446 | ||
76aa844d SW |
447 | return 0; |
448 | ||
449 | out: | |
450 | ceph_debugfs_client_cleanup(client); | |
451 | return ret; | |
452 | } | |
453 | ||
454 | void ceph_debugfs_client_cleanup(struct ceph_client *client) | |
455 | { | |
06edf046 | 456 | debugfs_remove(client->debugfs_bdi); |
76aa844d SW |
457 | debugfs_remove(client->debugfs_caps); |
458 | debugfs_remove(client->debugfs_dentry_lru); | |
459 | debugfs_remove(client->debugfs_osdmap); | |
460 | debugfs_remove(client->debugfs_mdsmap); | |
461 | debugfs_remove(client->debugfs_monmap); | |
462 | debugfs_remove(client->osdc.debugfs_file); | |
463 | debugfs_remove(client->mdsc.debugfs_file); | |
464 | debugfs_remove(client->monc.debugfs_file); | |
2baba250 | 465 | debugfs_remove(client->debugfs_congestion_kb); |
76aa844d SW |
466 | debugfs_remove(client->debugfs_dir); |
467 | } | |
468 | ||
039934b8 SW |
469 | #else // CONFIG_DEBUG_FS |
470 | ||
471 | int __init ceph_debugfs_init(void) | |
472 | { | |
473 | return 0; | |
474 | } | |
475 | ||
476 | void ceph_debugfs_cleanup(void) | |
477 | { | |
478 | } | |
479 | ||
480 | int ceph_debugfs_client_init(struct ceph_client *client) | |
481 | { | |
482 | return 0; | |
483 | } | |
484 | ||
485 | void ceph_debugfs_client_cleanup(struct ceph_client *client) | |
486 | { | |
487 | } | |
488 | ||
489 | #endif // CONFIG_DEBUG_FS |