blob: e77b04ca7802c046af213abd25650a11bcc6a6a3 [file] [log] [blame]
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -07001#include <linux/ceph/ceph_debug.h>
2
3#include <linux/device.h>
4#include <linux/slab.h>
5#include <linux/module.h>
6#include <linux/ctype.h>
7#include <linux/debugfs.h>
8#include <linux/seq_file.h>
9
10#include <linux/ceph/libceph.h>
11#include <linux/ceph/mon_client.h>
12#include <linux/ceph/auth.h>
13#include <linux/ceph/debugfs.h>
14
15#ifdef CONFIG_DEBUG_FS
16
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 * .../monmap - current monmap
23 * .../osdc - active osd requests
24 * .../monc - mon client state
Ilya Dryomov5cf7bd32015-03-25 21:07:41 +030025 * .../client_options - libceph-only (i.e. not rbd or cephfs) options
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070026 * .../dentry_lru - dump contents of dentry lru
27 * .../caps - expose cap (reservation) stats
28 * .../bdi - symlink to ../../bdi/something
29 */
30
31static struct dentry *ceph_debugfs_dir;
32
33static int monmap_show(struct seq_file *s, void *p)
34{
35 int i;
36 struct ceph_client *client = s->private;
37
38 if (client->monc.monmap == NULL)
39 return 0;
40
41 seq_printf(s, "epoch %d\n", client->monc.monmap->epoch);
42 for (i = 0; i < client->monc.monmap->num_mon; i++) {
43 struct ceph_entity_inst *inst =
44 &client->monc.monmap->mon_inst[i];
45
46 seq_printf(s, "\t%s%lld\t%s\n",
47 ENTITY_NAME(inst->name),
48 ceph_pr_addr(&inst->addr.in_addr));
49 }
50 return 0;
51}
52
53static int osdmap_show(struct seq_file *s, void *p)
54{
55 int i;
56 struct ceph_client *client = s->private;
Ilya Dryomovb4f34792016-04-28 16:07:27 +020057 struct ceph_osd_client *osdc = &client->osdc;
58 struct ceph_osdmap *map = osdc->osdmap;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070059 struct rb_node *n;
60
Ilya Dryomov35fea3a2014-03-13 16:36:12 +020061 if (map == NULL)
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070062 return 0;
Ilya Dryomov35fea3a2014-03-13 16:36:12 +020063
Ilya Dryomovb4f34792016-04-28 16:07:27 +020064 down_read(&osdc->lock);
65 seq_printf(s, "epoch %d flags 0x%x\n", map->epoch, map->flags);
Ilya Dryomov35fea3a2014-03-13 16:36:12 +020066
67 for (n = rb_first(&map->pg_pools); n; n = rb_next(n)) {
Ilya Dryomov04812ac2016-04-28 16:07:23 +020068 struct ceph_pg_pool_info *pi =
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070069 rb_entry(n, struct ceph_pg_pool_info, node);
Ilya Dryomov35fea3a2014-03-13 16:36:12 +020070
Ilya Dryomov04812ac2016-04-28 16:07:23 +020071 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",
72 pi->id, pi->name, pi->type, pi->size, pi->min_size,
73 pi->pg_num, pi->pg_num_mask, pi->flags,
74 pi->last_force_request_resend, pi->read_tier,
75 pi->write_tier);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070076 }
Ilya Dryomov35fea3a2014-03-13 16:36:12 +020077 for (i = 0; i < map->max_osd; i++) {
78 struct ceph_entity_addr *addr = &map->osd_addr[i];
79 int state = map->osd_state[i];
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070080 char sb[64];
81
Ilya Dryomov2cfa34f2014-03-21 19:05:30 +020082 seq_printf(s, "osd%d\t%s\t%3d%%\t(%s)\t%3d%%\n",
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070083 i, ceph_pr_addr(&addr->in_addr),
Ilya Dryomov35fea3a2014-03-13 16:36:12 +020084 ((map->osd_weight[i]*100) >> 16),
Ilya Dryomov2cfa34f2014-03-21 19:05:30 +020085 ceph_osdmap_state_str(sb, sizeof(sb), state),
86 ((ceph_get_primary_affinity(map, i)*100) >> 16));
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070087 }
Ilya Dryomov1c002402014-03-13 16:36:13 +020088 for (n = rb_first(&map->pg_temp); n; n = rb_next(n)) {
89 struct ceph_pg_mapping *pg =
90 rb_entry(n, struct ceph_pg_mapping, node);
91
92 seq_printf(s, "pg_temp %llu.%x [", pg->pgid.pool,
93 pg->pgid.seed);
Ilya Dryomov35a935d2014-03-21 19:05:29 +020094 for (i = 0; i < pg->pg_temp.len; i++)
Ilya Dryomov1c002402014-03-13 16:36:13 +020095 seq_printf(s, "%s%d", (i == 0 ? "" : ","),
Ilya Dryomov35a935d2014-03-21 19:05:29 +020096 pg->pg_temp.osds[i]);
Ilya Dryomov1c002402014-03-13 16:36:13 +020097 seq_printf(s, "]\n");
98 }
Ilya Dryomov9686f942014-03-21 19:05:29 +020099 for (n = rb_first(&map->primary_temp); n; n = rb_next(n)) {
100 struct ceph_pg_mapping *pg =
101 rb_entry(n, struct ceph_pg_mapping, node);
102
103 seq_printf(s, "primary_temp %llu.%x %d\n", pg->pgid.pool,
104 pg->pgid.seed, pg->primary_temp.osd);
105 }
Ilya Dryomov35fea3a2014-03-13 16:36:12 +0200106
Ilya Dryomovb4f34792016-04-28 16:07:27 +0200107 up_read(&osdc->lock);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700108 return 0;
109}
110
111static int monc_show(struct seq_file *s, void *p)
112{
113 struct ceph_client *client = s->private;
114 struct ceph_mon_generic_request *req;
115 struct ceph_mon_client *monc = &client->monc;
116 struct rb_node *rp;
Ilya Dryomov82dcaba2016-01-19 16:19:06 +0100117 int i;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700118
119 mutex_lock(&monc->mutex);
120
Ilya Dryomov82dcaba2016-01-19 16:19:06 +0100121 for (i = 0; i < ARRAY_SIZE(monc->subs); i++) {
122 seq_printf(s, "have %s %u", ceph_sub_str[i],
123 monc->subs[i].have);
124 if (monc->subs[i].want)
125 seq_printf(s, " want %llu%s",
126 le64_to_cpu(monc->subs[i].item.start),
127 (monc->subs[i].item.flags &
128 CEPH_SUBSCRIBE_ONETIME ? "" : "+"));
129 seq_putc(s, '\n');
130 }
Ilya Dryomov737cc81e2016-05-26 00:05:01 +0200131 seq_printf(s, "fs_cluster_id %d\n", monc->fs_cluster_id);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700132
133 for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) {
134 __u16 op;
135 req = rb_entry(rp, struct ceph_mon_generic_request, node);
136 op = le16_to_cpu(req->request->hdr.type);
137 if (op == CEPH_MSG_STATFS)
Ilya Dryomov002b36b2014-05-12 13:05:47 +0400138 seq_printf(s, "%llu statfs\n", req->tid);
Ilya Dryomov513a8242014-05-13 11:19:26 +0400139 else if (op == CEPH_MSG_MON_GET_VERSION)
140 seq_printf(s, "%llu mon_get_version", req->tid);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700141 else
Ilya Dryomov002b36b2014-05-12 13:05:47 +0400142 seq_printf(s, "%llu unknown\n", req->tid);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700143 }
144
145 mutex_unlock(&monc->mutex);
146 return 0;
147}
148
Ilya Dryomovbb873b52016-05-26 00:29:52 +0200149static void dump_target(struct seq_file *s, struct ceph_osd_request_target *t)
150{
151 int i;
152
153 seq_printf(s, "osd%d\t%llu.%x\t[", t->osd, t->pgid.pool, t->pgid.seed);
154 for (i = 0; i < t->up.size; i++)
155 seq_printf(s, "%s%d", (!i ? "" : ","), t->up.osds[i]);
156 seq_printf(s, "]/%d\t[", t->up.primary);
157 for (i = 0; i < t->acting.size; i++)
158 seq_printf(s, "%s%d", (!i ? "" : ","), t->acting.osds[i]);
159 seq_printf(s, "]/%d\t%*pE\t0x%x", t->acting.primary,
160 t->target_oid.name_len, t->target_oid.name, t->flags);
161 if (t->paused)
162 seq_puts(s, "\tP");
163}
164
165static void dump_request(struct seq_file *s, struct ceph_osd_request *req)
166{
167 int i;
168
169 seq_printf(s, "%llu\t", req->r_tid);
170 dump_target(s, &req->r_t);
171
172 seq_printf(s, "\t%d\t%u'%llu", req->r_attempts,
173 le32_to_cpu(req->r_replay_version.epoch),
174 le64_to_cpu(req->r_replay_version.version));
175
176 for (i = 0; i < req->r_num_ops; i++) {
177 struct ceph_osd_req_op *op = &req->r_ops[i];
178
179 seq_printf(s, "%s%s", (i == 0 ? "\t" : ","),
180 ceph_osd_op_name(op->op));
Ilya Dryomov922dab62016-05-26 01:15:02 +0200181 if (op->op == CEPH_OSD_OP_WATCH)
182 seq_printf(s, "-%s",
183 ceph_osd_watch_op_name(op->watch.op));
Ilya Dryomovbb873b52016-05-26 00:29:52 +0200184 }
185
186 seq_putc(s, '\n');
187}
188
Ilya Dryomov5aea3dc2016-04-28 16:07:26 +0200189static void dump_requests(struct seq_file *s, struct ceph_osd *osd)
190{
191 struct rb_node *n;
192
193 mutex_lock(&osd->lock);
194 for (n = rb_first(&osd->o_requests); n; n = rb_next(n)) {
195 struct ceph_osd_request *req =
196 rb_entry(n, struct ceph_osd_request, r_node);
197
198 dump_request(s, req);
199 }
200
201 mutex_unlock(&osd->lock);
202}
203
Ilya Dryomov922dab62016-05-26 01:15:02 +0200204static void dump_linger_request(struct seq_file *s,
205 struct ceph_osd_linger_request *lreq)
206{
207 seq_printf(s, "%llu\t", lreq->linger_id);
208 dump_target(s, &lreq->t);
209
Ilya Dryomov19079202016-04-28 16:07:27 +0200210 seq_printf(s, "\t%u\t%s%s/%d\n", lreq->register_gen,
211 lreq->is_watch ? "W" : "N", lreq->committed ? "C" : "",
212 lreq->last_error);
Ilya Dryomov922dab62016-05-26 01:15:02 +0200213}
214
215static void dump_linger_requests(struct seq_file *s, struct ceph_osd *osd)
216{
217 struct rb_node *n;
218
219 mutex_lock(&osd->lock);
220 for (n = rb_first(&osd->o_linger_requests); n; n = rb_next(n)) {
221 struct ceph_osd_linger_request *lreq =
222 rb_entry(n, struct ceph_osd_linger_request, node);
223
224 dump_linger_request(s, lreq);
225 }
226
227 mutex_unlock(&osd->lock);
228}
229
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700230static int osdc_show(struct seq_file *s, void *pp)
231{
232 struct ceph_client *client = s->private;
233 struct ceph_osd_client *osdc = &client->osdc;
Ilya Dryomov5aea3dc2016-04-28 16:07:26 +0200234 struct rb_node *n;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700235
Ilya Dryomov5aea3dc2016-04-28 16:07:26 +0200236 down_read(&osdc->lock);
237 seq_printf(s, "REQUESTS %d homeless %d\n",
238 atomic_read(&osdc->num_requests),
239 atomic_read(&osdc->num_homeless));
240 for (n = rb_first(&osdc->osds); n; n = rb_next(n)) {
241 struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700242
Ilya Dryomov5aea3dc2016-04-28 16:07:26 +0200243 dump_requests(s, osd);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700244 }
Ilya Dryomov5aea3dc2016-04-28 16:07:26 +0200245 dump_requests(s, &osdc->homeless_osd);
246
Ilya Dryomov922dab62016-05-26 01:15:02 +0200247 seq_puts(s, "LINGER REQUESTS\n");
248 for (n = rb_first(&osdc->osds); n; n = rb_next(n)) {
249 struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node);
250
251 dump_linger_requests(s, osd);
252 }
253 dump_linger_requests(s, &osdc->homeless_osd);
254
Ilya Dryomov5aea3dc2016-04-28 16:07:26 +0200255 up_read(&osdc->lock);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700256 return 0;
257}
258
Ilya Dryomov5cf7bd32015-03-25 21:07:41 +0300259static int client_options_show(struct seq_file *s, void *p)
260{
261 struct ceph_client *client = s->private;
262 int ret;
263
264 ret = ceph_print_client_options(s, client);
265 if (ret)
266 return ret;
267
268 seq_putc(s, '\n');
269 return 0;
270}
271
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700272CEPH_DEFINE_SHOW_FUNC(monmap_show)
273CEPH_DEFINE_SHOW_FUNC(osdmap_show)
274CEPH_DEFINE_SHOW_FUNC(monc_show)
275CEPH_DEFINE_SHOW_FUNC(osdc_show)
Ilya Dryomov5cf7bd32015-03-25 21:07:41 +0300276CEPH_DEFINE_SHOW_FUNC(client_options_show)
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700277
278int ceph_debugfs_init(void)
279{
280 ceph_debugfs_dir = debugfs_create_dir("ceph", NULL);
281 if (!ceph_debugfs_dir)
282 return -ENOMEM;
283 return 0;
284}
285
286void ceph_debugfs_cleanup(void)
287{
288 debugfs_remove(ceph_debugfs_dir);
289}
290
291int ceph_debugfs_client_init(struct ceph_client *client)
292{
293 int ret = -ENOMEM;
294 char name[80];
295
296 snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid,
297 client->monc.auth->global_id);
298
Sage Weild1c338a2012-08-19 12:29:16 -0700299 dout("ceph_debugfs_client_init %p %s\n", client, name);
300
301 BUG_ON(client->debugfs_dir);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700302 client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);
303 if (!client->debugfs_dir)
304 goto out;
305
306 client->monc.debugfs_file = debugfs_create_file("monc",
307 0600,
308 client->debugfs_dir,
309 client,
310 &monc_show_fops);
311 if (!client->monc.debugfs_file)
312 goto out;
313
314 client->osdc.debugfs_file = debugfs_create_file("osdc",
315 0600,
316 client->debugfs_dir,
317 client,
318 &osdc_show_fops);
319 if (!client->osdc.debugfs_file)
320 goto out;
321
322 client->debugfs_monmap = debugfs_create_file("monmap",
323 0600,
324 client->debugfs_dir,
325 client,
326 &monmap_show_fops);
327 if (!client->debugfs_monmap)
328 goto out;
329
330 client->debugfs_osdmap = debugfs_create_file("osdmap",
331 0600,
332 client->debugfs_dir,
333 client,
334 &osdmap_show_fops);
335 if (!client->debugfs_osdmap)
336 goto out;
337
Ilya Dryomov5cf7bd32015-03-25 21:07:41 +0300338 client->debugfs_options = debugfs_create_file("client_options",
339 0600,
340 client->debugfs_dir,
341 client,
342 &client_options_show_fops);
343 if (!client->debugfs_options)
344 goto out;
345
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700346 return 0;
347
348out:
349 ceph_debugfs_client_cleanup(client);
350 return ret;
351}
352
353void ceph_debugfs_client_cleanup(struct ceph_client *client)
354{
Sage Weild1c338a2012-08-19 12:29:16 -0700355 dout("ceph_debugfs_client_cleanup %p\n", client);
Ilya Dryomov5cf7bd32015-03-25 21:07:41 +0300356 debugfs_remove(client->debugfs_options);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700357 debugfs_remove(client->debugfs_osdmap);
358 debugfs_remove(client->debugfs_monmap);
359 debugfs_remove(client->osdc.debugfs_file);
360 debugfs_remove(client->monc.debugfs_file);
361 debugfs_remove(client->debugfs_dir);
362}
363
364#else /* CONFIG_DEBUG_FS */
365
366int ceph_debugfs_init(void)
367{
368 return 0;
369}
370
371void ceph_debugfs_cleanup(void)
372{
373}
374
Yehuda Sadeh602adf42010-08-12 16:11:25 -0700375int ceph_debugfs_client_init(struct ceph_client *client)
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700376{
377 return 0;
378}
379
380void ceph_debugfs_client_cleanup(struct ceph_client *client)
381{
382}
383
384#endif /* CONFIG_DEBUG_FS */
385
386EXPORT_SYMBOL(ceph_debugfs_init);
387EXPORT_SYMBOL(ceph_debugfs_cleanup);