Commit | Line | Data |
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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; | |
116 | struct ceph_mon_statfs_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 | ||
85ff03f6 SW |
129 | for (rp = rb_first(&monc->statfs_request_tree); rp; rp = rb_next(rp)) { |
130 | req = rb_entry(rp, struct ceph_mon_statfs_request, node); | |
76aa844d SW |
131 | seq_printf(s, "%lld statfs\n", req->tid); |
132 | } | |
76aa844d | 133 | |
85ff03f6 | 134 | mutex_unlock(&monc->mutex); |
76aa844d SW |
135 | return 0; |
136 | } | |
137 | ||
138 | static int mdsc_show(struct seq_file *s, void *p) | |
139 | { | |
140 | struct ceph_client *client = s->private; | |
76aa844d | 141 | struct ceph_mds_client *mdsc = &client->mdsc; |
44ca18f2 SW |
142 | struct ceph_mds_request *req; |
143 | struct rb_node *rp; | |
76aa844d SW |
144 | int pathlen; |
145 | u64 pathbase; | |
146 | char *path; | |
147 | ||
148 | mutex_lock(&mdsc->mutex); | |
44ca18f2 SW |
149 | for (rp = rb_first(&mdsc->request_tree); rp; rp = rb_next(rp)) { |
150 | req = rb_entry(rp, struct ceph_mds_request, r_node); | |
76aa844d SW |
151 | |
152 | if (req->r_request) | |
153 | seq_printf(s, "%lld\tmds%d\t", req->r_tid, req->r_mds); | |
154 | else | |
155 | seq_printf(s, "%lld\t(no request)\t", req->r_tid); | |
156 | ||
157 | seq_printf(s, "%s", ceph_mds_op_name(req->r_op)); | |
158 | ||
159 | if (req->r_got_unsafe) | |
160 | seq_printf(s, "\t(unsafe)"); | |
161 | else | |
162 | seq_printf(s, "\t"); | |
163 | ||
164 | if (req->r_inode) { | |
165 | seq_printf(s, " #%llx", ceph_ino(req->r_inode)); | |
166 | } else if (req->r_dentry) { | |
167 | path = ceph_mdsc_build_path(req->r_dentry, &pathlen, | |
168 | &pathbase, 0); | |
169 | spin_lock(&req->r_dentry->d_lock); | |
170 | seq_printf(s, " #%llx/%.*s (%s)", | |
171 | ceph_ino(req->r_dentry->d_parent->d_inode), | |
172 | req->r_dentry->d_name.len, | |
173 | req->r_dentry->d_name.name, | |
174 | path ? path : ""); | |
175 | spin_unlock(&req->r_dentry->d_lock); | |
176 | kfree(path); | |
177 | } else if (req->r_path1) { | |
178 | seq_printf(s, " #%llx/%s", req->r_ino1.ino, | |
179 | req->r_path1); | |
180 | } | |
181 | ||
182 | if (req->r_old_dentry) { | |
183 | path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen, | |
184 | &pathbase, 0); | |
185 | spin_lock(&req->r_old_dentry->d_lock); | |
186 | seq_printf(s, " #%llx/%.*s (%s)", | |
187 | ceph_ino(req->r_old_dentry->d_parent->d_inode), | |
188 | req->r_old_dentry->d_name.len, | |
189 | req->r_old_dentry->d_name.name, | |
190 | path ? path : ""); | |
191 | spin_unlock(&req->r_old_dentry->d_lock); | |
192 | kfree(path); | |
193 | } else if (req->r_path2) { | |
194 | if (req->r_ino2.ino) | |
195 | seq_printf(s, " #%llx/%s", req->r_ino2.ino, | |
196 | req->r_path2); | |
197 | else | |
198 | seq_printf(s, " %s", req->r_path2); | |
199 | } | |
200 | ||
201 | seq_printf(s, "\n"); | |
202 | } | |
203 | mutex_unlock(&mdsc->mutex); | |
204 | ||
205 | return 0; | |
206 | } | |
207 | ||
208 | static int osdc_show(struct seq_file *s, void *pp) | |
209 | { | |
210 | struct ceph_client *client = s->private; | |
211 | struct ceph_osd_client *osdc = &client->osdc; | |
212 | struct rb_node *p; | |
213 | ||
214 | mutex_lock(&osdc->request_mutex); | |
215 | for (p = rb_first(&osdc->requests); p; p = rb_next(p)) { | |
216 | struct ceph_osd_request *req; | |
217 | struct ceph_osd_request_head *head; | |
218 | struct ceph_osd_op *op; | |
219 | int num_ops; | |
220 | int opcode, olen; | |
221 | int i; | |
222 | ||
223 | req = rb_entry(p, struct ceph_osd_request, r_node); | |
224 | ||
7740a42f SW |
225 | seq_printf(s, "%lld\tosd%d\t%d.%x\t", req->r_tid, |
226 | req->r_osd ? req->r_osd->o_osd : -1, | |
227 | le32_to_cpu(req->r_pgid.pool), | |
228 | le16_to_cpu(req->r_pgid.ps)); | |
76aa844d SW |
229 | |
230 | head = req->r_request->front.iov_base; | |
231 | op = (void *)(head + 1); | |
232 | ||
233 | num_ops = le16_to_cpu(head->num_ops); | |
234 | olen = le32_to_cpu(head->object_len); | |
235 | seq_printf(s, "%.*s", olen, | |
236 | (const char *)(head->ops + num_ops)); | |
237 | ||
238 | if (req->r_reassert_version.epoch) | |
239 | seq_printf(s, "\t%u'%llu", | |
240 | (unsigned)le32_to_cpu(req->r_reassert_version.epoch), | |
241 | le64_to_cpu(req->r_reassert_version.version)); | |
242 | else | |
243 | seq_printf(s, "\t"); | |
244 | ||
245 | for (i = 0; i < num_ops; i++) { | |
246 | opcode = le16_to_cpu(op->op); | |
247 | seq_printf(s, "\t%s", ceph_osd_op_name(opcode)); | |
248 | op++; | |
249 | } | |
250 | ||
251 | seq_printf(s, "\n"); | |
252 | } | |
253 | mutex_unlock(&osdc->request_mutex); | |
254 | return 0; | |
255 | } | |
256 | ||
257 | static int caps_show(struct seq_file *s, void *p) | |
258 | { | |
259 | struct ceph_client *client = p; | |
85ccce43 | 260 | int total, avail, used, reserved, min; |
76aa844d | 261 | |
85ccce43 | 262 | ceph_reservation_status(client, &total, &avail, &used, &reserved, &min); |
76aa844d | 263 | seq_printf(s, "total\t\t%d\n" |
85ccce43 SW |
264 | "avail\t\t%d\n" |
265 | "used\t\t%d\n" | |
266 | "reserved\t%d\n" | |
267 | "min\t%d\n", | |
268 | total, avail, used, reserved, min); | |
76aa844d SW |
269 | return 0; |
270 | } | |
271 | ||
272 | static int dentry_lru_show(struct seq_file *s, void *ptr) | |
273 | { | |
274 | struct ceph_client *client = s->private; | |
275 | struct ceph_mds_client *mdsc = &client->mdsc; | |
276 | struct ceph_dentry_info *di; | |
277 | ||
278 | spin_lock(&mdsc->dentry_lru_lock); | |
279 | list_for_each_entry(di, &mdsc->dentry_lru, lru) { | |
280 | struct dentry *dentry = di->dentry; | |
281 | seq_printf(s, "%p %p\t%.*s\n", | |
282 | di, dentry, dentry->d_name.len, dentry->d_name.name); | |
283 | } | |
284 | spin_unlock(&mdsc->dentry_lru_lock); | |
285 | ||
286 | return 0; | |
287 | } | |
288 | ||
289 | #define DEFINE_SHOW_FUNC(name) \ | |
290 | static int name##_open(struct inode *inode, struct file *file) \ | |
291 | { \ | |
292 | struct seq_file *sf; \ | |
293 | int ret; \ | |
294 | \ | |
295 | ret = single_open(file, name, NULL); \ | |
296 | sf = file->private_data; \ | |
297 | sf->private = inode->i_private; \ | |
298 | return ret; \ | |
299 | } \ | |
300 | \ | |
301 | static const struct file_operations name##_fops = { \ | |
302 | .open = name##_open, \ | |
303 | .read = seq_read, \ | |
304 | .llseek = seq_lseek, \ | |
305 | .release = single_release, \ | |
306 | }; | |
307 | ||
308 | DEFINE_SHOW_FUNC(monmap_show) | |
309 | DEFINE_SHOW_FUNC(mdsmap_show) | |
310 | DEFINE_SHOW_FUNC(osdmap_show) | |
311 | DEFINE_SHOW_FUNC(monc_show) | |
312 | DEFINE_SHOW_FUNC(mdsc_show) | |
313 | DEFINE_SHOW_FUNC(osdc_show) | |
314 | DEFINE_SHOW_FUNC(dentry_lru_show) | |
315 | DEFINE_SHOW_FUNC(caps_show) | |
316 | ||
2baba250 YS |
317 | static int congestion_kb_set(void *data, u64 val) |
318 | { | |
319 | struct ceph_client *client = (struct ceph_client *)data; | |
320 | ||
321 | if (client) | |
322 | client->mount_args->congestion_kb = (int)val; | |
323 | ||
324 | return 0; | |
325 | } | |
326 | ||
327 | static int congestion_kb_get(void *data, u64 *val) | |
328 | { | |
329 | struct ceph_client *client = (struct ceph_client *)data; | |
330 | ||
331 | if (client) | |
332 | *val = (u64)client->mount_args->congestion_kb; | |
333 | ||
334 | return 0; | |
335 | } | |
336 | ||
337 | ||
338 | DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops, congestion_kb_get, | |
339 | congestion_kb_set, "%llu\n"); | |
340 | ||
76aa844d SW |
341 | int __init ceph_debugfs_init(void) |
342 | { | |
343 | ceph_debugfs_dir = debugfs_create_dir("ceph", NULL); | |
344 | if (!ceph_debugfs_dir) | |
345 | return -ENOMEM; | |
346 | return 0; | |
347 | } | |
348 | ||
349 | void ceph_debugfs_cleanup(void) | |
350 | { | |
351 | debugfs_remove(ceph_debugfs_dir); | |
352 | } | |
353 | ||
354 | int ceph_debugfs_client_init(struct ceph_client *client) | |
355 | { | |
356 | int ret = 0; | |
357 | char name[80]; | |
358 | ||
359 | snprintf(name, sizeof(name), FSID_FORMAT ".client%lld", | |
0743304d | 360 | PR_FSID(&client->fsid), client->monc.auth->global_id); |
76aa844d SW |
361 | |
362 | client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir); | |
363 | if (!client->debugfs_dir) | |
364 | goto out; | |
365 | ||
366 | client->monc.debugfs_file = debugfs_create_file("monc", | |
367 | 0600, | |
368 | client->debugfs_dir, | |
369 | client, | |
370 | &monc_show_fops); | |
371 | if (!client->monc.debugfs_file) | |
372 | goto out; | |
373 | ||
374 | client->mdsc.debugfs_file = debugfs_create_file("mdsc", | |
375 | 0600, | |
376 | client->debugfs_dir, | |
377 | client, | |
378 | &mdsc_show_fops); | |
379 | if (!client->mdsc.debugfs_file) | |
380 | goto out; | |
381 | ||
382 | client->osdc.debugfs_file = debugfs_create_file("osdc", | |
383 | 0600, | |
384 | client->debugfs_dir, | |
385 | client, | |
386 | &osdc_show_fops); | |
387 | if (!client->osdc.debugfs_file) | |
388 | goto out; | |
389 | ||
390 | client->debugfs_monmap = debugfs_create_file("monmap", | |
391 | 0600, | |
392 | client->debugfs_dir, | |
393 | client, | |
394 | &monmap_show_fops); | |
395 | if (!client->debugfs_monmap) | |
396 | goto out; | |
397 | ||
398 | client->debugfs_mdsmap = debugfs_create_file("mdsmap", | |
399 | 0600, | |
400 | client->debugfs_dir, | |
401 | client, | |
402 | &mdsmap_show_fops); | |
403 | if (!client->debugfs_mdsmap) | |
404 | goto out; | |
405 | ||
406 | client->debugfs_osdmap = debugfs_create_file("osdmap", | |
407 | 0600, | |
408 | client->debugfs_dir, | |
409 | client, | |
410 | &osdmap_show_fops); | |
411 | if (!client->debugfs_osdmap) | |
412 | goto out; | |
413 | ||
414 | client->debugfs_dentry_lru = debugfs_create_file("dentry_lru", | |
415 | 0600, | |
416 | client->debugfs_dir, | |
417 | client, | |
418 | &dentry_lru_show_fops); | |
419 | if (!client->debugfs_dentry_lru) | |
420 | goto out; | |
421 | ||
422 | client->debugfs_caps = debugfs_create_file("caps", | |
423 | 0400, | |
424 | client->debugfs_dir, | |
425 | client, | |
426 | &caps_show_fops); | |
427 | if (!client->debugfs_caps) | |
428 | goto out; | |
429 | ||
2baba250 YS |
430 | client->debugfs_congestion_kb = debugfs_create_file("writeback_congestion_kb", |
431 | 0600, | |
432 | client->debugfs_dir, | |
433 | client, | |
434 | &congestion_kb_fops); | |
435 | if (!client->debugfs_congestion_kb) | |
436 | goto out; | |
437 | ||
06edf046 SW |
438 | sprintf(name, "../../bdi/%s", dev_name(client->sb->s_bdi->dev)); |
439 | client->debugfs_bdi = debugfs_create_symlink("bdi", client->debugfs_dir, | |
440 | name); | |
441 | ||
76aa844d SW |
442 | return 0; |
443 | ||
444 | out: | |
445 | ceph_debugfs_client_cleanup(client); | |
446 | return ret; | |
447 | } | |
448 | ||
449 | void ceph_debugfs_client_cleanup(struct ceph_client *client) | |
450 | { | |
06edf046 | 451 | debugfs_remove(client->debugfs_bdi); |
76aa844d SW |
452 | debugfs_remove(client->debugfs_caps); |
453 | debugfs_remove(client->debugfs_dentry_lru); | |
454 | debugfs_remove(client->debugfs_osdmap); | |
455 | debugfs_remove(client->debugfs_mdsmap); | |
456 | debugfs_remove(client->debugfs_monmap); | |
457 | debugfs_remove(client->osdc.debugfs_file); | |
458 | debugfs_remove(client->mdsc.debugfs_file); | |
459 | debugfs_remove(client->monc.debugfs_file); | |
2baba250 | 460 | debugfs_remove(client->debugfs_congestion_kb); |
76aa844d SW |
461 | debugfs_remove(client->debugfs_dir); |
462 | } | |
463 | ||
039934b8 SW |
464 | #else // CONFIG_DEBUG_FS |
465 | ||
466 | int __init ceph_debugfs_init(void) | |
467 | { | |
468 | return 0; | |
469 | } | |
470 | ||
471 | void ceph_debugfs_cleanup(void) | |
472 | { | |
473 | } | |
474 | ||
475 | int ceph_debugfs_client_init(struct ceph_client *client) | |
476 | { | |
477 | return 0; | |
478 | } | |
479 | ||
480 | void ceph_debugfs_client_cleanup(struct ceph_client *client) | |
481 | { | |
482 | } | |
483 | ||
484 | #endif // CONFIG_DEBUG_FS |