Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
3d14c5d2 YS |
2 | #include <linux/ceph/ceph_debug.h> |
3 | ||
4 | #include <linux/device.h> | |
5 | #include <linux/slab.h> | |
6 | #include <linux/module.h> | |
7 | #include <linux/ctype.h> | |
8 | #include <linux/debugfs.h> | |
9 | #include <linux/seq_file.h> | |
10 | ||
11 | #include <linux/ceph/libceph.h> | |
12 | #include <linux/ceph/mon_client.h> | |
13 | #include <linux/ceph/auth.h> | |
14 | #include <linux/ceph/debugfs.h> | |
15 | ||
16 | #ifdef CONFIG_DEBUG_FS | |
17 | ||
18 | /* | |
19 | * Implement /sys/kernel/debug/ceph fun | |
20 | * | |
21 | * /sys/kernel/debug/ceph/client* - an instance of the ceph client | |
22 | * .../osdmap - current osdmap | |
23 | * .../monmap - current monmap | |
24 | * .../osdc - active osd requests | |
25 | * .../monc - mon client state | |
5cf7bd30 | 26 | * .../client_options - libceph-only (i.e. not rbd or cephfs) options |
3d14c5d2 YS |
27 | * .../dentry_lru - dump contents of dentry lru |
28 | * .../caps - expose cap (reservation) stats | |
29 | * .../bdi - symlink to ../../bdi/something | |
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), | |
b726ec97 | 49 | ceph_pr_addr(&inst->addr)); |
3d14c5d2 YS |
50 | } |
51 | return 0; | |
52 | } | |
53 | ||
54 | static int osdmap_show(struct seq_file *s, void *p) | |
55 | { | |
56 | int i; | |
57 | struct ceph_client *client = s->private; | |
b4f34795 ID |
58 | struct ceph_osd_client *osdc = &client->osdc; |
59 | struct ceph_osdmap *map = osdc->osdmap; | |
3d14c5d2 YS |
60 | struct rb_node *n; |
61 | ||
35fea3a1 | 62 | if (map == NULL) |
3d14c5d2 | 63 | return 0; |
35fea3a1 | 64 | |
b4f34795 | 65 | down_read(&osdc->lock); |
58eb7932 JL |
66 | seq_printf(s, "epoch %u barrier %u flags 0x%x\n", map->epoch, |
67 | osdc->epoch_barrier, map->flags); | |
35fea3a1 ID |
68 | |
69 | for (n = rb_first(&map->pg_pools); n; n = rb_next(n)) { | |
04812acf | 70 | struct ceph_pg_pool_info *pi = |
3d14c5d2 | 71 | rb_entry(n, struct ceph_pg_pool_info, node); |
35fea3a1 | 72 | |
04812acf ID |
73 | seq_printf(s, "pool %lld '%s' type %d size %d min_size %d pg_num %u pg_num_mask %d flags 0x%llx lfor %u read_tier %lld write_tier %lld\n", |
74 | pi->id, pi->name, pi->type, pi->size, pi->min_size, | |
75 | pi->pg_num, pi->pg_num_mask, pi->flags, | |
76 | pi->last_force_request_resend, pi->read_tier, | |
77 | pi->write_tier); | |
3d14c5d2 | 78 | } |
35fea3a1 ID |
79 | for (i = 0; i < map->max_osd; i++) { |
80 | struct ceph_entity_addr *addr = &map->osd_addr[i]; | |
0bb05da2 | 81 | u32 state = map->osd_state[i]; |
3d14c5d2 YS |
82 | char sb[64]; |
83 | ||
117d96a0 | 84 | seq_printf(s, "osd%d\t%s\t%3d%%\t(%s)\t%3d%%\t%2d\n", |
b726ec97 | 85 | i, ceph_pr_addr(addr), |
35fea3a1 | 86 | ((map->osd_weight[i]*100) >> 16), |
2cfa34f2 | 87 | ceph_osdmap_state_str(sb, sizeof(sb), state), |
117d96a0 ID |
88 | ((ceph_get_primary_affinity(map, i)*100) >> 16), |
89 | ceph_get_crush_locality(map, i, | |
90 | &client->options->crush_locs)); | |
3d14c5d2 | 91 | } |
1c00240e ID |
92 | for (n = rb_first(&map->pg_temp); n; n = rb_next(n)) { |
93 | struct ceph_pg_mapping *pg = | |
94 | rb_entry(n, struct ceph_pg_mapping, node); | |
95 | ||
96 | seq_printf(s, "pg_temp %llu.%x [", pg->pgid.pool, | |
97 | pg->pgid.seed); | |
35a935d7 | 98 | for (i = 0; i < pg->pg_temp.len; i++) |
1c00240e | 99 | seq_printf(s, "%s%d", (i == 0 ? "" : ","), |
35a935d7 | 100 | pg->pg_temp.osds[i]); |
1c00240e ID |
101 | seq_printf(s, "]\n"); |
102 | } | |
9686f94c ID |
103 | for (n = rb_first(&map->primary_temp); n; n = rb_next(n)) { |
104 | struct ceph_pg_mapping *pg = | |
105 | rb_entry(n, struct ceph_pg_mapping, node); | |
106 | ||
107 | seq_printf(s, "primary_temp %llu.%x %d\n", pg->pgid.pool, | |
108 | pg->pgid.seed, pg->primary_temp.osd); | |
109 | } | |
6f428df4 ID |
110 | for (n = rb_first(&map->pg_upmap); n; n = rb_next(n)) { |
111 | struct ceph_pg_mapping *pg = | |
112 | rb_entry(n, struct ceph_pg_mapping, node); | |
113 | ||
114 | seq_printf(s, "pg_upmap %llu.%x [", pg->pgid.pool, | |
115 | pg->pgid.seed); | |
116 | for (i = 0; i < pg->pg_upmap.len; i++) | |
117 | seq_printf(s, "%s%d", (i == 0 ? "" : ","), | |
118 | pg->pg_upmap.osds[i]); | |
119 | seq_printf(s, "]\n"); | |
120 | } | |
121 | for (n = rb_first(&map->pg_upmap_items); n; n = rb_next(n)) { | |
122 | struct ceph_pg_mapping *pg = | |
123 | rb_entry(n, struct ceph_pg_mapping, node); | |
124 | ||
125 | seq_printf(s, "pg_upmap_items %llu.%x [", pg->pgid.pool, | |
126 | pg->pgid.seed); | |
127 | for (i = 0; i < pg->pg_upmap_items.len; i++) | |
128 | seq_printf(s, "%s%d->%d", (i == 0 ? "" : ","), | |
129 | pg->pg_upmap_items.from_to[i][0], | |
130 | pg->pg_upmap_items.from_to[i][1]); | |
131 | seq_printf(s, "]\n"); | |
132 | } | |
35fea3a1 | 133 | |
b4f34795 | 134 | up_read(&osdc->lock); |
3d14c5d2 YS |
135 | return 0; |
136 | } | |
137 | ||
138 | static int monc_show(struct seq_file *s, void *p) | |
139 | { | |
140 | struct ceph_client *client = s->private; | |
141 | struct ceph_mon_generic_request *req; | |
142 | struct ceph_mon_client *monc = &client->monc; | |
143 | struct rb_node *rp; | |
82dcabad | 144 | int i; |
3d14c5d2 YS |
145 | |
146 | mutex_lock(&monc->mutex); | |
147 | ||
82dcabad ID |
148 | for (i = 0; i < ARRAY_SIZE(monc->subs); i++) { |
149 | seq_printf(s, "have %s %u", ceph_sub_str[i], | |
150 | monc->subs[i].have); | |
151 | if (monc->subs[i].want) | |
152 | seq_printf(s, " want %llu%s", | |
153 | le64_to_cpu(monc->subs[i].item.start), | |
154 | (monc->subs[i].item.flags & | |
155 | CEPH_SUBSCRIBE_ONETIME ? "" : "+")); | |
156 | seq_putc(s, '\n'); | |
157 | } | |
737cc81e | 158 | seq_printf(s, "fs_cluster_id %d\n", monc->fs_cluster_id); |
3d14c5d2 YS |
159 | |
160 | for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) { | |
161 | __u16 op; | |
162 | req = rb_entry(rp, struct ceph_mon_generic_request, node); | |
163 | op = le16_to_cpu(req->request->hdr.type); | |
164 | if (op == CEPH_MSG_STATFS) | |
002b36ba | 165 | seq_printf(s, "%llu statfs\n", req->tid); |
513a8243 ID |
166 | else if (op == CEPH_MSG_MON_GET_VERSION) |
167 | seq_printf(s, "%llu mon_get_version", req->tid); | |
3d14c5d2 | 168 | else |
002b36ba | 169 | seq_printf(s, "%llu unknown\n", req->tid); |
3d14c5d2 YS |
170 | } |
171 | ||
172 | mutex_unlock(&monc->mutex); | |
173 | return 0; | |
174 | } | |
175 | ||
dc98ff72 ID |
176 | static void dump_spgid(struct seq_file *s, const struct ceph_spg *spgid) |
177 | { | |
178 | seq_printf(s, "%llu.%x", spgid->pgid.pool, spgid->pgid.seed); | |
179 | if (spgid->shard != CEPH_SPG_NOSHARD) | |
180 | seq_printf(s, "s%d", spgid->shard); | |
181 | } | |
182 | ||
bb873b53 ID |
183 | static void dump_target(struct seq_file *s, struct ceph_osd_request_target *t) |
184 | { | |
185 | int i; | |
186 | ||
dc98ff72 ID |
187 | seq_printf(s, "osd%d\t%llu.%x\t", t->osd, t->pgid.pool, t->pgid.seed); |
188 | dump_spgid(s, &t->spgid); | |
189 | seq_puts(s, "\t["); | |
bb873b53 ID |
190 | for (i = 0; i < t->up.size; i++) |
191 | seq_printf(s, "%s%d", (!i ? "" : ","), t->up.osds[i]); | |
192 | seq_printf(s, "]/%d\t[", t->up.primary); | |
193 | for (i = 0; i < t->acting.size; i++) | |
194 | seq_printf(s, "%s%d", (!i ? "" : ","), t->acting.osds[i]); | |
04c7d789 | 195 | seq_printf(s, "]/%d\te%u\t", t->acting.primary, t->epoch); |
30c156d9 YZ |
196 | if (t->target_oloc.pool_ns) { |
197 | seq_printf(s, "%*pE/%*pE\t0x%x", | |
198 | (int)t->target_oloc.pool_ns->len, | |
199 | t->target_oloc.pool_ns->str, | |
200 | t->target_oid.name_len, t->target_oid.name, t->flags); | |
201 | } else { | |
202 | seq_printf(s, "%*pE\t0x%x", t->target_oid.name_len, | |
203 | t->target_oid.name, t->flags); | |
204 | } | |
bb873b53 ID |
205 | if (t->paused) |
206 | seq_puts(s, "\tP"); | |
207 | } | |
208 | ||
209 | static void dump_request(struct seq_file *s, struct ceph_osd_request *req) | |
210 | { | |
211 | int i; | |
212 | ||
213 | seq_printf(s, "%llu\t", req->r_tid); | |
214 | dump_target(s, &req->r_t); | |
215 | ||
aa26d662 | 216 | seq_printf(s, "\t%d", req->r_attempts); |
bb873b53 ID |
217 | |
218 | for (i = 0; i < req->r_num_ops; i++) { | |
219 | struct ceph_osd_req_op *op = &req->r_ops[i]; | |
220 | ||
221 | seq_printf(s, "%s%s", (i == 0 ? "\t" : ","), | |
222 | ceph_osd_op_name(op->op)); | |
922dab61 ID |
223 | if (op->op == CEPH_OSD_OP_WATCH) |
224 | seq_printf(s, "-%s", | |
225 | ceph_osd_watch_op_name(op->watch.op)); | |
6e6f0f01 ID |
226 | else if (op->op == CEPH_OSD_OP_CALL) |
227 | seq_printf(s, "-%s/%s", op->cls.class_name, | |
228 | op->cls.method_name); | |
bb873b53 ID |
229 | } |
230 | ||
231 | seq_putc(s, '\n'); | |
232 | } | |
233 | ||
5aea3dcd ID |
234 | static void dump_requests(struct seq_file *s, struct ceph_osd *osd) |
235 | { | |
236 | struct rb_node *n; | |
237 | ||
238 | mutex_lock(&osd->lock); | |
239 | for (n = rb_first(&osd->o_requests); n; n = rb_next(n)) { | |
240 | struct ceph_osd_request *req = | |
241 | rb_entry(n, struct ceph_osd_request, r_node); | |
242 | ||
243 | dump_request(s, req); | |
244 | } | |
245 | ||
246 | mutex_unlock(&osd->lock); | |
247 | } | |
248 | ||
922dab61 ID |
249 | static void dump_linger_request(struct seq_file *s, |
250 | struct ceph_osd_linger_request *lreq) | |
251 | { | |
252 | seq_printf(s, "%llu\t", lreq->linger_id); | |
253 | dump_target(s, &lreq->t); | |
254 | ||
19079203 ID |
255 | seq_printf(s, "\t%u\t%s%s/%d\n", lreq->register_gen, |
256 | lreq->is_watch ? "W" : "N", lreq->committed ? "C" : "", | |
257 | lreq->last_error); | |
922dab61 ID |
258 | } |
259 | ||
260 | static void dump_linger_requests(struct seq_file *s, struct ceph_osd *osd) | |
261 | { | |
262 | struct rb_node *n; | |
263 | ||
264 | mutex_lock(&osd->lock); | |
265 | for (n = rb_first(&osd->o_linger_requests); n; n = rb_next(n)) { | |
266 | struct ceph_osd_linger_request *lreq = | |
267 | rb_entry(n, struct ceph_osd_linger_request, node); | |
268 | ||
269 | dump_linger_request(s, lreq); | |
270 | } | |
271 | ||
272 | mutex_unlock(&osd->lock); | |
273 | } | |
274 | ||
a02a946d ID |
275 | static void dump_snapid(struct seq_file *s, u64 snapid) |
276 | { | |
277 | if (snapid == CEPH_NOSNAP) | |
278 | seq_puts(s, "head"); | |
279 | else if (snapid == CEPH_SNAPDIR) | |
280 | seq_puts(s, "snapdir"); | |
281 | else | |
282 | seq_printf(s, "%llx", snapid); | |
283 | } | |
284 | ||
285 | static void dump_name_escaped(struct seq_file *s, unsigned char *name, | |
286 | size_t len) | |
287 | { | |
288 | size_t i; | |
289 | ||
290 | for (i = 0; i < len; i++) { | |
291 | if (name[i] == '%' || name[i] == ':' || name[i] == '/' || | |
292 | name[i] < 32 || name[i] >= 127) { | |
293 | seq_printf(s, "%%%02x", name[i]); | |
294 | } else { | |
295 | seq_putc(s, name[i]); | |
296 | } | |
297 | } | |
298 | } | |
299 | ||
300 | static void dump_hoid(struct seq_file *s, const struct ceph_hobject_id *hoid) | |
301 | { | |
302 | if (hoid->snapid == 0 && hoid->hash == 0 && !hoid->is_max && | |
303 | hoid->pool == S64_MIN) { | |
304 | seq_puts(s, "MIN"); | |
305 | return; | |
306 | } | |
307 | if (hoid->is_max) { | |
308 | seq_puts(s, "MAX"); | |
309 | return; | |
310 | } | |
311 | seq_printf(s, "%lld:%08x:", hoid->pool, hoid->hash_reverse_bits); | |
312 | dump_name_escaped(s, hoid->nspace, hoid->nspace_len); | |
313 | seq_putc(s, ':'); | |
314 | dump_name_escaped(s, hoid->key, hoid->key_len); | |
315 | seq_putc(s, ':'); | |
316 | dump_name_escaped(s, hoid->oid, hoid->oid_len); | |
317 | seq_putc(s, ':'); | |
318 | dump_snapid(s, hoid->snapid); | |
319 | } | |
320 | ||
321 | static void dump_backoffs(struct seq_file *s, struct ceph_osd *osd) | |
322 | { | |
323 | struct rb_node *n; | |
324 | ||
325 | mutex_lock(&osd->lock); | |
326 | for (n = rb_first(&osd->o_backoffs_by_id); n; n = rb_next(n)) { | |
327 | struct ceph_osd_backoff *backoff = | |
328 | rb_entry(n, struct ceph_osd_backoff, id_node); | |
329 | ||
330 | seq_printf(s, "osd%d\t", osd->o_osd); | |
331 | dump_spgid(s, &backoff->spgid); | |
332 | seq_printf(s, "\t%llu\t", backoff->id); | |
333 | dump_hoid(s, backoff->begin); | |
334 | seq_putc(s, '\t'); | |
335 | dump_hoid(s, backoff->end); | |
336 | seq_putc(s, '\n'); | |
337 | } | |
338 | ||
339 | mutex_unlock(&osd->lock); | |
340 | } | |
341 | ||
3d14c5d2 YS |
342 | static int osdc_show(struct seq_file *s, void *pp) |
343 | { | |
344 | struct ceph_client *client = s->private; | |
345 | struct ceph_osd_client *osdc = &client->osdc; | |
5aea3dcd | 346 | struct rb_node *n; |
3d14c5d2 | 347 | |
5aea3dcd ID |
348 | down_read(&osdc->lock); |
349 | seq_printf(s, "REQUESTS %d homeless %d\n", | |
350 | atomic_read(&osdc->num_requests), | |
351 | atomic_read(&osdc->num_homeless)); | |
352 | for (n = rb_first(&osdc->osds); n; n = rb_next(n)) { | |
353 | struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); | |
3d14c5d2 | 354 | |
5aea3dcd | 355 | dump_requests(s, osd); |
3d14c5d2 | 356 | } |
5aea3dcd ID |
357 | dump_requests(s, &osdc->homeless_osd); |
358 | ||
922dab61 ID |
359 | seq_puts(s, "LINGER REQUESTS\n"); |
360 | for (n = rb_first(&osdc->osds); n; n = rb_next(n)) { | |
361 | struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); | |
362 | ||
363 | dump_linger_requests(s, osd); | |
364 | } | |
365 | dump_linger_requests(s, &osdc->homeless_osd); | |
366 | ||
a02a946d ID |
367 | seq_puts(s, "BACKOFFS\n"); |
368 | for (n = rb_first(&osdc->osds); n; n = rb_next(n)) { | |
369 | struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); | |
370 | ||
371 | dump_backoffs(s, osd); | |
372 | } | |
373 | ||
5aea3dcd | 374 | up_read(&osdc->lock); |
3d14c5d2 YS |
375 | return 0; |
376 | } | |
377 | ||
5cf7bd30 ID |
378 | static int client_options_show(struct seq_file *s, void *p) |
379 | { | |
380 | struct ceph_client *client = s->private; | |
381 | int ret; | |
382 | ||
02b2f549 | 383 | ret = ceph_print_client_options(s, client, true); |
5cf7bd30 ID |
384 | if (ret) |
385 | return ret; | |
386 | ||
387 | seq_putc(s, '\n'); | |
388 | return 0; | |
389 | } | |
390 | ||
072eaf3c ID |
391 | DEFINE_SHOW_ATTRIBUTE(monmap); |
392 | DEFINE_SHOW_ATTRIBUTE(osdmap); | |
393 | DEFINE_SHOW_ATTRIBUTE(monc); | |
394 | DEFINE_SHOW_ATTRIBUTE(osdc); | |
395 | DEFINE_SHOW_ATTRIBUTE(client_options); | |
3d14c5d2 | 396 | |
1a829ff2 | 397 | void __init ceph_debugfs_init(void) |
3d14c5d2 YS |
398 | { |
399 | ceph_debugfs_dir = debugfs_create_dir("ceph", NULL); | |
3d14c5d2 YS |
400 | } |
401 | ||
402 | void ceph_debugfs_cleanup(void) | |
403 | { | |
404 | debugfs_remove(ceph_debugfs_dir); | |
405 | } | |
406 | ||
1a829ff2 | 407 | void ceph_debugfs_client_init(struct ceph_client *client) |
3d14c5d2 | 408 | { |
3d14c5d2 YS |
409 | char name[80]; |
410 | ||
411 | snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid, | |
412 | client->monc.auth->global_id); | |
413 | ||
d1c338a5 SW |
414 | dout("ceph_debugfs_client_init %p %s\n", client, name); |
415 | ||
3d14c5d2 | 416 | client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir); |
3d14c5d2 YS |
417 | |
418 | client->monc.debugfs_file = debugfs_create_file("monc", | |
11e1478d | 419 | 0400, |
3d14c5d2 YS |
420 | client->debugfs_dir, |
421 | client, | |
072eaf3c | 422 | &monc_fops); |
3d14c5d2 YS |
423 | |
424 | client->osdc.debugfs_file = debugfs_create_file("osdc", | |
11e1478d | 425 | 0400, |
3d14c5d2 YS |
426 | client->debugfs_dir, |
427 | client, | |
072eaf3c | 428 | &osdc_fops); |
3d14c5d2 YS |
429 | |
430 | client->debugfs_monmap = debugfs_create_file("monmap", | |
11e1478d | 431 | 0400, |
3d14c5d2 YS |
432 | client->debugfs_dir, |
433 | client, | |
072eaf3c | 434 | &monmap_fops); |
3d14c5d2 YS |
435 | |
436 | client->debugfs_osdmap = debugfs_create_file("osdmap", | |
11e1478d | 437 | 0400, |
3d14c5d2 YS |
438 | client->debugfs_dir, |
439 | client, | |
072eaf3c | 440 | &osdmap_fops); |
3d14c5d2 | 441 | |
5cf7bd30 | 442 | client->debugfs_options = debugfs_create_file("client_options", |
11e1478d | 443 | 0400, |
5cf7bd30 ID |
444 | client->debugfs_dir, |
445 | client, | |
072eaf3c | 446 | &client_options_fops); |
3d14c5d2 YS |
447 | } |
448 | ||
449 | void ceph_debugfs_client_cleanup(struct ceph_client *client) | |
450 | { | |
d1c338a5 | 451 | dout("ceph_debugfs_client_cleanup %p\n", client); |
5cf7bd30 | 452 | debugfs_remove(client->debugfs_options); |
3d14c5d2 YS |
453 | debugfs_remove(client->debugfs_osdmap); |
454 | debugfs_remove(client->debugfs_monmap); | |
455 | debugfs_remove(client->osdc.debugfs_file); | |
456 | debugfs_remove(client->monc.debugfs_file); | |
457 | debugfs_remove(client->debugfs_dir); | |
458 | } | |
459 | ||
460 | #else /* CONFIG_DEBUG_FS */ | |
461 | ||
1a829ff2 | 462 | void __init ceph_debugfs_init(void) |
3d14c5d2 | 463 | { |
3d14c5d2 YS |
464 | } |
465 | ||
466 | void ceph_debugfs_cleanup(void) | |
467 | { | |
468 | } | |
469 | ||
1a829ff2 | 470 | void ceph_debugfs_client_init(struct ceph_client *client) |
3d14c5d2 | 471 | { |
3d14c5d2 YS |
472 | } |
473 | ||
474 | void ceph_debugfs_client_cleanup(struct ceph_client *client) | |
475 | { | |
476 | } | |
477 | ||
478 | #endif /* CONFIG_DEBUG_FS */ |