]>
Commit | Line | Data |
---|---|---|
76aa844d SW |
1 | #include "ceph_debug.h" |
2 | ||
3 | #include <linux/module.h> | |
4 | #include <linux/ctype.h> | |
5 | #include <linux/debugfs.h> | |
6 | #include <linux/seq_file.h> | |
7 | ||
8 | #include "super.h" | |
9 | #include "mds_client.h" | |
10 | ||
11 | /* | |
12 | * Implement /sys/kernel/debug/ceph fun | |
13 | * | |
14 | * /sys/kernel/debug/ceph/client* - an instance of the ceph client | |
15 | * .../osdmap - current osdmap | |
16 | * .../mdsmap - current mdsmap | |
17 | * .../monmap - current monmap | |
18 | * .../osdc - active osd requests | |
19 | * .../mdsc - active mds requests | |
20 | * .../monc - mon client state | |
21 | * .../dentry_lru - dump contents of dentry lru | |
22 | * .../caps - expose cap (reservation) stats | |
23 | */ | |
24 | ||
25 | static struct dentry *ceph_debugfs_dir; | |
26 | ||
27 | static int monmap_show(struct seq_file *s, void *p) | |
28 | { | |
29 | int i; | |
30 | struct ceph_client *client = s->private; | |
31 | ||
32 | if (client->monc.monmap == NULL) | |
33 | return 0; | |
34 | ||
35 | seq_printf(s, "epoch %d\n", client->monc.monmap->epoch); | |
36 | for (i = 0; i < client->monc.monmap->num_mon; i++) { | |
37 | struct ceph_entity_inst *inst = | |
38 | &client->monc.monmap->mon_inst[i]; | |
39 | ||
40 | seq_printf(s, "\t%s%lld\t%s\n", | |
41 | ENTITY_NAME(inst->name), | |
42 | pr_addr(&inst->addr.in_addr)); | |
43 | } | |
44 | return 0; | |
45 | } | |
46 | ||
47 | static int mdsmap_show(struct seq_file *s, void *p) | |
48 | { | |
49 | int i; | |
50 | struct ceph_client *client = s->private; | |
51 | ||
52 | if (client->mdsc.mdsmap == NULL) | |
53 | return 0; | |
54 | seq_printf(s, "epoch %d\n", client->mdsc.mdsmap->m_epoch); | |
55 | seq_printf(s, "root %d\n", client->mdsc.mdsmap->m_root); | |
56 | seq_printf(s, "session_timeout %d\n", | |
57 | client->mdsc.mdsmap->m_session_timeout); | |
58 | seq_printf(s, "session_autoclose %d\n", | |
59 | client->mdsc.mdsmap->m_session_autoclose); | |
60 | for (i = 0; i < client->mdsc.mdsmap->m_max_mds; i++) { | |
61 | struct ceph_entity_addr *addr = | |
62 | &client->mdsc.mdsmap->m_info[i].addr; | |
63 | int state = client->mdsc.mdsmap->m_info[i].state; | |
64 | ||
65 | seq_printf(s, "\tmds%d\t%s\t(%s)\n", i, pr_addr(&addr->in_addr), | |
66 | ceph_mds_state_name(state)); | |
67 | } | |
68 | return 0; | |
69 | } | |
70 | ||
71 | static int osdmap_show(struct seq_file *s, void *p) | |
72 | { | |
73 | int i; | |
74 | struct ceph_client *client = s->private; | |
75 | ||
76 | if (client->osdc.osdmap == NULL) | |
77 | return 0; | |
78 | seq_printf(s, "epoch %d\n", client->osdc.osdmap->epoch); | |
79 | seq_printf(s, "flags%s%s\n", | |
80 | (client->osdc.osdmap->flags & CEPH_OSDMAP_NEARFULL) ? | |
81 | " NEARFULL" : "", | |
82 | (client->osdc.osdmap->flags & CEPH_OSDMAP_FULL) ? | |
83 | " FULL" : ""); | |
84 | for (i = 0; i < client->osdc.osdmap->num_pools; i++) { | |
85 | struct ceph_pg_pool_info *pool = | |
86 | &client->osdc.osdmap->pg_pool[i]; | |
87 | seq_printf(s, "pg_pool %d pg_num %d / %d, lpg_num %d / %d\n", | |
88 | i, pool->v.pg_num, pool->pg_num_mask, | |
89 | pool->v.lpg_num, pool->lpg_num_mask); | |
90 | } | |
91 | for (i = 0; i < client->osdc.osdmap->max_osd; i++) { | |
92 | struct ceph_entity_addr *addr = | |
93 | &client->osdc.osdmap->osd_addr[i]; | |
94 | int state = client->osdc.osdmap->osd_state[i]; | |
95 | char sb[64]; | |
96 | ||
97 | seq_printf(s, "\tosd%d\t%s\t%3d%%\t(%s)\n", | |
98 | i, pr_addr(&addr->in_addr), | |
99 | ((client->osdc.osdmap->osd_weight[i]*100) >> 16), | |
100 | ceph_osdmap_state_str(sb, sizeof(sb), state)); | |
101 | } | |
102 | return 0; | |
103 | } | |
104 | ||
105 | static int monc_show(struct seq_file *s, void *p) | |
106 | { | |
107 | struct ceph_client *client = s->private; | |
108 | struct ceph_mon_statfs_request *req; | |
109 | u64 nexttid = 0; | |
110 | int got; | |
111 | struct ceph_mon_client *monc = &client->monc; | |
112 | ||
113 | mutex_lock(&monc->mutex); | |
114 | ||
115 | if (monc->have_mdsmap) | |
116 | seq_printf(s, "have mdsmap %u\n", (unsigned)monc->have_mdsmap); | |
117 | if (monc->have_osdmap) | |
118 | seq_printf(s, "have osdmap %u\n", (unsigned)monc->have_osdmap); | |
119 | if (monc->want_next_osdmap) | |
120 | seq_printf(s, "want next osdmap\n"); | |
121 | ||
122 | while (nexttid < monc->last_tid) { | |
123 | got = radix_tree_gang_lookup(&monc->statfs_request_tree, | |
124 | (void **)&req, nexttid, 1); | |
125 | if (got == 0) | |
126 | break; | |
127 | nexttid = req->tid + 1; | |
128 | ||
129 | seq_printf(s, "%lld statfs\n", req->tid); | |
130 | } | |
131 | mutex_unlock(&monc->mutex); | |
132 | ||
133 | return 0; | |
134 | } | |
135 | ||
136 | static int mdsc_show(struct seq_file *s, void *p) | |
137 | { | |
138 | struct ceph_client *client = s->private; | |
139 | struct ceph_mds_request *req; | |
140 | u64 nexttid = 0; | |
141 | int got; | |
142 | struct ceph_mds_client *mdsc = &client->mdsc; | |
143 | int pathlen; | |
144 | u64 pathbase; | |
145 | char *path; | |
146 | ||
147 | mutex_lock(&mdsc->mutex); | |
148 | while (nexttid < mdsc->last_tid) { | |
149 | got = radix_tree_gang_lookup(&mdsc->request_tree, | |
150 | (void **)&req, nexttid, 1); | |
151 | if (got == 0) | |
152 | break; | |
153 | nexttid = req->r_tid + 1; | |
154 | ||
155 | if (req->r_request) | |
156 | seq_printf(s, "%lld\tmds%d\t", req->r_tid, req->r_mds); | |
157 | else | |
158 | seq_printf(s, "%lld\t(no request)\t", req->r_tid); | |
159 | ||
160 | seq_printf(s, "%s", ceph_mds_op_name(req->r_op)); | |
161 | ||
162 | if (req->r_got_unsafe) | |
163 | seq_printf(s, "\t(unsafe)"); | |
164 | else | |
165 | seq_printf(s, "\t"); | |
166 | ||
167 | if (req->r_inode) { | |
168 | seq_printf(s, " #%llx", ceph_ino(req->r_inode)); | |
169 | } else if (req->r_dentry) { | |
170 | path = ceph_mdsc_build_path(req->r_dentry, &pathlen, | |
171 | &pathbase, 0); | |
172 | spin_lock(&req->r_dentry->d_lock); | |
173 | seq_printf(s, " #%llx/%.*s (%s)", | |
174 | ceph_ino(req->r_dentry->d_parent->d_inode), | |
175 | req->r_dentry->d_name.len, | |
176 | req->r_dentry->d_name.name, | |
177 | path ? path : ""); | |
178 | spin_unlock(&req->r_dentry->d_lock); | |
179 | kfree(path); | |
180 | } else if (req->r_path1) { | |
181 | seq_printf(s, " #%llx/%s", req->r_ino1.ino, | |
182 | req->r_path1); | |
183 | } | |
184 | ||
185 | if (req->r_old_dentry) { | |
186 | path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen, | |
187 | &pathbase, 0); | |
188 | spin_lock(&req->r_old_dentry->d_lock); | |
189 | seq_printf(s, " #%llx/%.*s (%s)", | |
190 | ceph_ino(req->r_old_dentry->d_parent->d_inode), | |
191 | req->r_old_dentry->d_name.len, | |
192 | req->r_old_dentry->d_name.name, | |
193 | path ? path : ""); | |
194 | spin_unlock(&req->r_old_dentry->d_lock); | |
195 | kfree(path); | |
196 | } else if (req->r_path2) { | |
197 | if (req->r_ino2.ino) | |
198 | seq_printf(s, " #%llx/%s", req->r_ino2.ino, | |
199 | req->r_path2); | |
200 | else | |
201 | seq_printf(s, " %s", req->r_path2); | |
202 | } | |
203 | ||
204 | seq_printf(s, "\n"); | |
205 | } | |
206 | mutex_unlock(&mdsc->mutex); | |
207 | ||
208 | return 0; | |
209 | } | |
210 | ||
211 | static int osdc_show(struct seq_file *s, void *pp) | |
212 | { | |
213 | struct ceph_client *client = s->private; | |
214 | struct ceph_osd_client *osdc = &client->osdc; | |
215 | struct rb_node *p; | |
216 | ||
217 | mutex_lock(&osdc->request_mutex); | |
218 | for (p = rb_first(&osdc->requests); p; p = rb_next(p)) { | |
219 | struct ceph_osd_request *req; | |
220 | struct ceph_osd_request_head *head; | |
221 | struct ceph_osd_op *op; | |
222 | int num_ops; | |
223 | int opcode, olen; | |
224 | int i; | |
225 | ||
226 | req = rb_entry(p, struct ceph_osd_request, r_node); | |
227 | ||
228 | seq_printf(s, "%lld\tosd%d\t", req->r_tid, | |
229 | req->r_osd ? req->r_osd->o_osd : -1); | |
230 | ||
231 | head = req->r_request->front.iov_base; | |
232 | op = (void *)(head + 1); | |
233 | ||
234 | num_ops = le16_to_cpu(head->num_ops); | |
235 | olen = le32_to_cpu(head->object_len); | |
236 | seq_printf(s, "%.*s", olen, | |
237 | (const char *)(head->ops + num_ops)); | |
238 | ||
239 | if (req->r_reassert_version.epoch) | |
240 | seq_printf(s, "\t%u'%llu", | |
241 | (unsigned)le32_to_cpu(req->r_reassert_version.epoch), | |
242 | le64_to_cpu(req->r_reassert_version.version)); | |
243 | else | |
244 | seq_printf(s, "\t"); | |
245 | ||
246 | for (i = 0; i < num_ops; i++) { | |
247 | opcode = le16_to_cpu(op->op); | |
248 | seq_printf(s, "\t%s", ceph_osd_op_name(opcode)); | |
249 | op++; | |
250 | } | |
251 | ||
252 | seq_printf(s, "\n"); | |
253 | } | |
254 | mutex_unlock(&osdc->request_mutex); | |
255 | return 0; | |
256 | } | |
257 | ||
258 | static int caps_show(struct seq_file *s, void *p) | |
259 | { | |
260 | struct ceph_client *client = p; | |
261 | int total, avail, used, reserved; | |
262 | ||
263 | ceph_reservation_status(client, &total, &avail, &used, &reserved); | |
264 | seq_printf(s, "total\t\t%d\n" | |
265 | "avail\t\t%d\n" | |
266 | "used\t\t%d\n" | |
267 | "reserved\t%d\n", | |
268 | total, avail, used, reserved); | |
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 | ||
317 | int __init ceph_debugfs_init(void) | |
318 | { | |
319 | ceph_debugfs_dir = debugfs_create_dir("ceph", NULL); | |
320 | if (!ceph_debugfs_dir) | |
321 | return -ENOMEM; | |
322 | return 0; | |
323 | } | |
324 | ||
325 | void ceph_debugfs_cleanup(void) | |
326 | { | |
327 | debugfs_remove(ceph_debugfs_dir); | |
328 | } | |
329 | ||
330 | int ceph_debugfs_client_init(struct ceph_client *client) | |
331 | { | |
332 | int ret = 0; | |
333 | char name[80]; | |
334 | ||
335 | snprintf(name, sizeof(name), FSID_FORMAT ".client%lld", | |
336 | PR_FSID(&client->monc.monmap->fsid), client->whoami); | |
337 | ||
338 | client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir); | |
339 | if (!client->debugfs_dir) | |
340 | goto out; | |
341 | ||
342 | client->monc.debugfs_file = debugfs_create_file("monc", | |
343 | 0600, | |
344 | client->debugfs_dir, | |
345 | client, | |
346 | &monc_show_fops); | |
347 | if (!client->monc.debugfs_file) | |
348 | goto out; | |
349 | ||
350 | client->mdsc.debugfs_file = debugfs_create_file("mdsc", | |
351 | 0600, | |
352 | client->debugfs_dir, | |
353 | client, | |
354 | &mdsc_show_fops); | |
355 | if (!client->mdsc.debugfs_file) | |
356 | goto out; | |
357 | ||
358 | client->osdc.debugfs_file = debugfs_create_file("osdc", | |
359 | 0600, | |
360 | client->debugfs_dir, | |
361 | client, | |
362 | &osdc_show_fops); | |
363 | if (!client->osdc.debugfs_file) | |
364 | goto out; | |
365 | ||
366 | client->debugfs_monmap = debugfs_create_file("monmap", | |
367 | 0600, | |
368 | client->debugfs_dir, | |
369 | client, | |
370 | &monmap_show_fops); | |
371 | if (!client->debugfs_monmap) | |
372 | goto out; | |
373 | ||
374 | client->debugfs_mdsmap = debugfs_create_file("mdsmap", | |
375 | 0600, | |
376 | client->debugfs_dir, | |
377 | client, | |
378 | &mdsmap_show_fops); | |
379 | if (!client->debugfs_mdsmap) | |
380 | goto out; | |
381 | ||
382 | client->debugfs_osdmap = debugfs_create_file("osdmap", | |
383 | 0600, | |
384 | client->debugfs_dir, | |
385 | client, | |
386 | &osdmap_show_fops); | |
387 | if (!client->debugfs_osdmap) | |
388 | goto out; | |
389 | ||
390 | client->debugfs_dentry_lru = debugfs_create_file("dentry_lru", | |
391 | 0600, | |
392 | client->debugfs_dir, | |
393 | client, | |
394 | &dentry_lru_show_fops); | |
395 | if (!client->debugfs_dentry_lru) | |
396 | goto out; | |
397 | ||
398 | client->debugfs_caps = debugfs_create_file("caps", | |
399 | 0400, | |
400 | client->debugfs_dir, | |
401 | client, | |
402 | &caps_show_fops); | |
403 | if (!client->debugfs_caps) | |
404 | goto out; | |
405 | ||
406 | return 0; | |
407 | ||
408 | out: | |
409 | ceph_debugfs_client_cleanup(client); | |
410 | return ret; | |
411 | } | |
412 | ||
413 | void ceph_debugfs_client_cleanup(struct ceph_client *client) | |
414 | { | |
415 | debugfs_remove(client->debugfs_caps); | |
416 | debugfs_remove(client->debugfs_dentry_lru); | |
417 | debugfs_remove(client->debugfs_osdmap); | |
418 | debugfs_remove(client->debugfs_mdsmap); | |
419 | debugfs_remove(client->debugfs_monmap); | |
420 | debugfs_remove(client->osdc.debugfs_file); | |
421 | debugfs_remove(client->mdsc.debugfs_file); | |
422 | debugfs_remove(client->monc.debugfs_file); | |
423 | debugfs_remove(client->debugfs_dir); | |
424 | } | |
425 |