1
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
20
21
22
23
24
25
26
27
28
29
30
31
32static struct dentry *ceph_debugfs_dir;
33
34static 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 ceph_pr_addr(&inst->addr));
50 }
51 return 0;
52}
53
54static int osdmap_show(struct seq_file *s, void *p)
55{
56 int i;
57 struct ceph_client *client = s->private;
58 struct ceph_osd_client *osdc = &client->osdc;
59 struct ceph_osdmap *map = osdc->osdmap;
60 struct rb_node *n;
61
62 if (map == NULL)
63 return 0;
64
65 down_read(&osdc->lock);
66 seq_printf(s, "epoch %u barrier %u flags 0x%x\n", map->epoch,
67 osdc->epoch_barrier, map->flags);
68
69 for (n = rb_first(&map->pg_pools); n; n = rb_next(n)) {
70 struct ceph_pg_pool_info *pi =
71 rb_entry(n, struct ceph_pg_pool_info, node);
72
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);
78 }
79 for (i = 0; i < map->max_osd; i++) {
80 struct ceph_entity_addr *addr = &map->osd_addr[i];
81 u32 state = map->osd_state[i];
82 char sb[64];
83
84 seq_printf(s, "osd%d\t%s\t%3d%%\t(%s)\t%3d%%\n",
85 i, ceph_pr_addr(addr),
86 ((map->osd_weight[i]*100) >> 16),
87 ceph_osdmap_state_str(sb, sizeof(sb), state),
88 ((ceph_get_primary_affinity(map, i)*100) >> 16));
89 }
90 for (n = rb_first(&map->pg_temp); n; n = rb_next(n)) {
91 struct ceph_pg_mapping *pg =
92 rb_entry(n, struct ceph_pg_mapping, node);
93
94 seq_printf(s, "pg_temp %llu.%x [", pg->pgid.pool,
95 pg->pgid.seed);
96 for (i = 0; i < pg->pg_temp.len; i++)
97 seq_printf(s, "%s%d", (i == 0 ? "" : ","),
98 pg->pg_temp.osds[i]);
99 seq_printf(s, "]\n");
100 }
101 for (n = rb_first(&map->primary_temp); n; n = rb_next(n)) {
102 struct ceph_pg_mapping *pg =
103 rb_entry(n, struct ceph_pg_mapping, node);
104
105 seq_printf(s, "primary_temp %llu.%x %d\n", pg->pgid.pool,
106 pg->pgid.seed, pg->primary_temp.osd);
107 }
108 for (n = rb_first(&map->pg_upmap); n; n = rb_next(n)) {
109 struct ceph_pg_mapping *pg =
110 rb_entry(n, struct ceph_pg_mapping, node);
111
112 seq_printf(s, "pg_upmap %llu.%x [", pg->pgid.pool,
113 pg->pgid.seed);
114 for (i = 0; i < pg->pg_upmap.len; i++)
115 seq_printf(s, "%s%d", (i == 0 ? "" : ","),
116 pg->pg_upmap.osds[i]);
117 seq_printf(s, "]\n");
118 }
119 for (n = rb_first(&map->pg_upmap_items); n; n = rb_next(n)) {
120 struct ceph_pg_mapping *pg =
121 rb_entry(n, struct ceph_pg_mapping, node);
122
123 seq_printf(s, "pg_upmap_items %llu.%x [", pg->pgid.pool,
124 pg->pgid.seed);
125 for (i = 0; i < pg->pg_upmap_items.len; i++)
126 seq_printf(s, "%s%d->%d", (i == 0 ? "" : ","),
127 pg->pg_upmap_items.from_to[i][0],
128 pg->pg_upmap_items.from_to[i][1]);
129 seq_printf(s, "]\n");
130 }
131
132 up_read(&osdc->lock);
133 return 0;
134}
135
136static int monc_show(struct seq_file *s, void *p)
137{
138 struct ceph_client *client = s->private;
139 struct ceph_mon_generic_request *req;
140 struct ceph_mon_client *monc = &client->monc;
141 struct rb_node *rp;
142 int i;
143
144 mutex_lock(&monc->mutex);
145
146 for (i = 0; i < ARRAY_SIZE(monc->subs); i++) {
147 seq_printf(s, "have %s %u", ceph_sub_str[i],
148 monc->subs[i].have);
149 if (monc->subs[i].want)
150 seq_printf(s, " want %llu%s",
151 le64_to_cpu(monc->subs[i].item.start),
152 (monc->subs[i].item.flags &
153 CEPH_SUBSCRIBE_ONETIME ? "" : "+"));
154 seq_putc(s, '\n');
155 }
156 seq_printf(s, "fs_cluster_id %d\n", monc->fs_cluster_id);
157
158 for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) {
159 __u16 op;
160 req = rb_entry(rp, struct ceph_mon_generic_request, node);
161 op = le16_to_cpu(req->request->hdr.type);
162 if (op == CEPH_MSG_STATFS)
163 seq_printf(s, "%llu statfs\n", req->tid);
164 else if (op == CEPH_MSG_MON_GET_VERSION)
165 seq_printf(s, "%llu mon_get_version", req->tid);
166 else
167 seq_printf(s, "%llu unknown\n", req->tid);
168 }
169
170 mutex_unlock(&monc->mutex);
171 return 0;
172}
173
174static void dump_spgid(struct seq_file *s, const struct ceph_spg *spgid)
175{
176 seq_printf(s, "%llu.%x", spgid->pgid.pool, spgid->pgid.seed);
177 if (spgid->shard != CEPH_SPG_NOSHARD)
178 seq_printf(s, "s%d", spgid->shard);
179}
180
181static void dump_target(struct seq_file *s, struct ceph_osd_request_target *t)
182{
183 int i;
184
185 seq_printf(s, "osd%d\t%llu.%x\t", t->osd, t->pgid.pool, t->pgid.seed);
186 dump_spgid(s, &t->spgid);
187 seq_puts(s, "\t[");
188 for (i = 0; i < t->up.size; i++)
189 seq_printf(s, "%s%d", (!i ? "" : ","), t->up.osds[i]);
190 seq_printf(s, "]/%d\t[", t->up.primary);
191 for (i = 0; i < t->acting.size; i++)
192 seq_printf(s, "%s%d", (!i ? "" : ","), t->acting.osds[i]);
193 seq_printf(s, "]/%d\te%u\t", t->acting.primary, t->epoch);
194 if (t->target_oloc.pool_ns) {
195 seq_printf(s, "%*pE/%*pE\t0x%x",
196 (int)t->target_oloc.pool_ns->len,
197 t->target_oloc.pool_ns->str,
198 t->target_oid.name_len, t->target_oid.name, t->flags);
199 } else {
200 seq_printf(s, "%*pE\t0x%x", t->target_oid.name_len,
201 t->target_oid.name, t->flags);
202 }
203 if (t->paused)
204 seq_puts(s, "\tP");
205}
206
207static void dump_request(struct seq_file *s, struct ceph_osd_request *req)
208{
209 int i;
210
211 seq_printf(s, "%llu\t", req->r_tid);
212 dump_target(s, &req->r_t);
213
214 seq_printf(s, "\t%d", req->r_attempts);
215
216 for (i = 0; i < req->r_num_ops; i++) {
217 struct ceph_osd_req_op *op = &req->r_ops[i];
218
219 seq_printf(s, "%s%s", (i == 0 ? "\t" : ","),
220 ceph_osd_op_name(op->op));
221 if (op->op == CEPH_OSD_OP_WATCH)
222 seq_printf(s, "-%s",
223 ceph_osd_watch_op_name(op->watch.op));
224 }
225
226 seq_putc(s, '\n');
227}
228
229static void dump_requests(struct seq_file *s, struct ceph_osd *osd)
230{
231 struct rb_node *n;
232
233 mutex_lock(&osd->lock);
234 for (n = rb_first(&osd->o_requests); n; n = rb_next(n)) {
235 struct ceph_osd_request *req =
236 rb_entry(n, struct ceph_osd_request, r_node);
237
238 dump_request(s, req);
239 }
240
241 mutex_unlock(&osd->lock);
242}
243
244static void dump_linger_request(struct seq_file *s,
245 struct ceph_osd_linger_request *lreq)
246{
247 seq_printf(s, "%llu\t", lreq->linger_id);
248 dump_target(s, &lreq->t);
249
250 seq_printf(s, "\t%u\t%s%s/%d\n", lreq->register_gen,
251 lreq->is_watch ? "W" : "N", lreq->committed ? "C" : "",
252 lreq->last_error);
253}
254
255static void dump_linger_requests(struct seq_file *s, struct ceph_osd *osd)
256{
257 struct rb_node *n;
258
259 mutex_lock(&osd->lock);
260 for (n = rb_first(&osd->o_linger_requests); n; n = rb_next(n)) {
261 struct ceph_osd_linger_request *lreq =
262 rb_entry(n, struct ceph_osd_linger_request, node);
263
264 dump_linger_request(s, lreq);
265 }
266
267 mutex_unlock(&osd->lock);
268}
269
270static void dump_snapid(struct seq_file *s, u64 snapid)
271{
272 if (snapid == CEPH_NOSNAP)
273 seq_puts(s, "head");
274 else if (snapid == CEPH_SNAPDIR)
275 seq_puts(s, "snapdir");
276 else
277 seq_printf(s, "%llx", snapid);
278}
279
280static void dump_name_escaped(struct seq_file *s, unsigned char *name,
281 size_t len)
282{
283 size_t i;
284
285 for (i = 0; i < len; i++) {
286 if (name[i] == '%' || name[i] == ':' || name[i] == '/' ||
287 name[i] < 32 || name[i] >= 127) {
288 seq_printf(s, "%%%02x", name[i]);
289 } else {
290 seq_putc(s, name[i]);
291 }
292 }
293}
294
295static void dump_hoid(struct seq_file *s, const struct ceph_hobject_id *hoid)
296{
297 if (hoid->snapid == 0 && hoid->hash == 0 && !hoid->is_max &&
298 hoid->pool == S64_MIN) {
299 seq_puts(s, "MIN");
300 return;
301 }
302 if (hoid->is_max) {
303 seq_puts(s, "MAX");
304 return;
305 }
306 seq_printf(s, "%lld:%08x:", hoid->pool, hoid->hash_reverse_bits);
307 dump_name_escaped(s, hoid->nspace, hoid->nspace_len);
308 seq_putc(s, ':');
309 dump_name_escaped(s, hoid->key, hoid->key_len);
310 seq_putc(s, ':');
311 dump_name_escaped(s, hoid->oid, hoid->oid_len);
312 seq_putc(s, ':');
313 dump_snapid(s, hoid->snapid);
314}
315
316static void dump_backoffs(struct seq_file *s, struct ceph_osd *osd)
317{
318 struct rb_node *n;
319
320 mutex_lock(&osd->lock);
321 for (n = rb_first(&osd->o_backoffs_by_id); n; n = rb_next(n)) {
322 struct ceph_osd_backoff *backoff =
323 rb_entry(n, struct ceph_osd_backoff, id_node);
324
325 seq_printf(s, "osd%d\t", osd->o_osd);
326 dump_spgid(s, &backoff->spgid);
327 seq_printf(s, "\t%llu\t", backoff->id);
328 dump_hoid(s, backoff->begin);
329 seq_putc(s, '\t');
330 dump_hoid(s, backoff->end);
331 seq_putc(s, '\n');
332 }
333
334 mutex_unlock(&osd->lock);
335}
336
337static int osdc_show(struct seq_file *s, void *pp)
338{
339 struct ceph_client *client = s->private;
340 struct ceph_osd_client *osdc = &client->osdc;
341 struct rb_node *n;
342
343 down_read(&osdc->lock);
344 seq_printf(s, "REQUESTS %d homeless %d\n",
345 atomic_read(&osdc->num_requests),
346 atomic_read(&osdc->num_homeless));
347 for (n = rb_first(&osdc->osds); n; n = rb_next(n)) {
348 struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node);
349
350 dump_requests(s, osd);
351 }
352 dump_requests(s, &osdc->homeless_osd);
353
354 seq_puts(s, "LINGER REQUESTS\n");
355 for (n = rb_first(&osdc->osds); n; n = rb_next(n)) {
356 struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node);
357
358 dump_linger_requests(s, osd);
359 }
360 dump_linger_requests(s, &osdc->homeless_osd);
361
362 seq_puts(s, "BACKOFFS\n");
363 for (n = rb_first(&osdc->osds); n; n = rb_next(n)) {
364 struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node);
365
366 dump_backoffs(s, osd);
367 }
368
369 up_read(&osdc->lock);
370 return 0;
371}
372
373static int client_options_show(struct seq_file *s, void *p)
374{
375 struct ceph_client *client = s->private;
376 int ret;
377
378 ret = ceph_print_client_options(s, client, true);
379 if (ret)
380 return ret;
381
382 seq_putc(s, '\n');
383 return 0;
384}
385
386CEPH_DEFINE_SHOW_FUNC(monmap_show)
387CEPH_DEFINE_SHOW_FUNC(osdmap_show)
388CEPH_DEFINE_SHOW_FUNC(monc_show)
389CEPH_DEFINE_SHOW_FUNC(osdc_show)
390CEPH_DEFINE_SHOW_FUNC(client_options_show)
391
392void __init ceph_debugfs_init(void)
393{
394 ceph_debugfs_dir = debugfs_create_dir("ceph", NULL);
395}
396
397void ceph_debugfs_cleanup(void)
398{
399 debugfs_remove(ceph_debugfs_dir);
400}
401
402void ceph_debugfs_client_init(struct ceph_client *client)
403{
404 char name[80];
405
406 snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid,
407 client->monc.auth->global_id);
408
409 dout("ceph_debugfs_client_init %p %s\n", client, name);
410
411 client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);
412
413 client->monc.debugfs_file = debugfs_create_file("monc",
414 0400,
415 client->debugfs_dir,
416 client,
417 &monc_show_fops);
418
419 client->osdc.debugfs_file = debugfs_create_file("osdc",
420 0400,
421 client->debugfs_dir,
422 client,
423 &osdc_show_fops);
424
425 client->debugfs_monmap = debugfs_create_file("monmap",
426 0400,
427 client->debugfs_dir,
428 client,
429 &monmap_show_fops);
430
431 client->debugfs_osdmap = debugfs_create_file("osdmap",
432 0400,
433 client->debugfs_dir,
434 client,
435 &osdmap_show_fops);
436
437 client->debugfs_options = debugfs_create_file("client_options",
438 0400,
439 client->debugfs_dir,
440 client,
441 &client_options_show_fops);
442}
443
444void ceph_debugfs_client_cleanup(struct ceph_client *client)
445{
446 dout("ceph_debugfs_client_cleanup %p\n", client);
447 debugfs_remove(client->debugfs_options);
448 debugfs_remove(client->debugfs_osdmap);
449 debugfs_remove(client->debugfs_monmap);
450 debugfs_remove(client->osdc.debugfs_file);
451 debugfs_remove(client->monc.debugfs_file);
452 debugfs_remove(client->debugfs_dir);
453}
454
455#else
456
457void __init ceph_debugfs_init(void)
458{
459}
460
461void ceph_debugfs_cleanup(void)
462{
463}
464
465void ceph_debugfs_client_init(struct ceph_client *client)
466{
467}
468
469void ceph_debugfs_client_cleanup(struct ceph_client *client)
470{
471}
472
473#endif
474
