1 #include <linux/ceph/ceph_debug.h>
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>
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>
15 #ifdef CONFIG_DEBUG_FS
18 * Implement /sys/kernel/debug/ceph fun
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
25 * .../client_options - libceph-only (i.e. not rbd or cephfs) options
26 * .../dentry_lru - dump contents of dentry lru
27 * .../caps - expose cap (reservation) stats
28 * .../bdi - symlink to ../../bdi/something
31 static struct dentry *ceph_debugfs_dir;
33 static int monmap_show(struct seq_file *s, void *p)
36 struct ceph_client *client = s->private;
38 if (client->monc.monmap == NULL)
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];
46 seq_printf(s, "\t%s%lld\t%s\n",
47 ENTITY_NAME(inst->name),
48 ceph_pr_addr(&inst->addr.in_addr));
53 static int osdmap_show(struct seq_file *s, void *p)
56 struct ceph_client *client = s->private;
57 struct ceph_osd_client *osdc = &client->osdc;
58 struct ceph_osdmap *map = osdc->osdmap;
64 down_read(&osdc->lock);
65 seq_printf(s, "epoch %u barrier %u flags 0x%x\n", map->epoch,
66 osdc->epoch_barrier, map->flags);
68 for (n = rb_first(&map->pg_pools); n; n = rb_next(n)) {
69 struct ceph_pg_pool_info *pi =
70 rb_entry(n, struct ceph_pg_pool_info, node);
72 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",
73 pi->id, pi->name, pi->type, pi->size, pi->min_size,
74 pi->pg_num, pi->pg_num_mask, pi->flags,
75 pi->last_force_request_resend, pi->read_tier,
78 for (i = 0; i < map->max_osd; i++) {
79 struct ceph_entity_addr *addr = &map->osd_addr[i];
80 int state = map->osd_state[i];
83 seq_printf(s, "osd%d\t%s\t%3d%%\t(%s)\t%3d%%\n",
84 i, ceph_pr_addr(&addr->in_addr),
85 ((map->osd_weight[i]*100) >> 16),
86 ceph_osdmap_state_str(sb, sizeof(sb), state),
87 ((ceph_get_primary_affinity(map, i)*100) >> 16));
89 for (n = rb_first(&map->pg_temp); n; n = rb_next(n)) {
90 struct ceph_pg_mapping *pg =
91 rb_entry(n, struct ceph_pg_mapping, node);
93 seq_printf(s, "pg_temp %llu.%x [", pg->pgid.pool,
95 for (i = 0; i < pg->pg_temp.len; i++)
96 seq_printf(s, "%s%d", (i == 0 ? "" : ","),
100 for (n = rb_first(&map->primary_temp); n; n = rb_next(n)) {
101 struct ceph_pg_mapping *pg =
102 rb_entry(n, struct ceph_pg_mapping, node);
104 seq_printf(s, "primary_temp %llu.%x %d\n", pg->pgid.pool,
105 pg->pgid.seed, pg->primary_temp.osd);
108 up_read(&osdc->lock);
112 static int monc_show(struct seq_file *s, void *p)
114 struct ceph_client *client = s->private;
115 struct ceph_mon_generic_request *req;
116 struct ceph_mon_client *monc = &client->monc;
120 mutex_lock(&monc->mutex);
122 for (i = 0; i < ARRAY_SIZE(monc->subs); i++) {
123 seq_printf(s, "have %s %u", ceph_sub_str[i],
125 if (monc->subs[i].want)
126 seq_printf(s, " want %llu%s",
127 le64_to_cpu(monc->subs[i].item.start),
128 (monc->subs[i].item.flags &
129 CEPH_SUBSCRIBE_ONETIME ? "" : "+"));
132 seq_printf(s, "fs_cluster_id %d\n", monc->fs_cluster_id);
134 for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) {
136 req = rb_entry(rp, struct ceph_mon_generic_request, node);
137 op = le16_to_cpu(req->request->hdr.type);
138 if (op == CEPH_MSG_STATFS)
139 seq_printf(s, "%llu statfs\n", req->tid);
140 else if (op == CEPH_MSG_MON_GET_VERSION)
141 seq_printf(s, "%llu mon_get_version", req->tid);
143 seq_printf(s, "%llu unknown\n", req->tid);
146 mutex_unlock(&monc->mutex);
150 static void dump_target(struct seq_file *s, struct ceph_osd_request_target *t)
154 seq_printf(s, "osd%d\t%llu.%x\t[", t->osd, t->pgid.pool, t->pgid.seed);
155 for (i = 0; i < t->up.size; i++)
156 seq_printf(s, "%s%d", (!i ? "" : ","), t->up.osds[i]);
157 seq_printf(s, "]/%d\t[", t->up.primary);
158 for (i = 0; i < t->acting.size; i++)
159 seq_printf(s, "%s%d", (!i ? "" : ","), t->acting.osds[i]);
160 seq_printf(s, "]/%d\t", t->acting.primary);
161 if (t->target_oloc.pool_ns) {
162 seq_printf(s, "%*pE/%*pE\t0x%x",
163 (int)t->target_oloc.pool_ns->len,
164 t->target_oloc.pool_ns->str,
165 t->target_oid.name_len, t->target_oid.name, t->flags);
167 seq_printf(s, "%*pE\t0x%x", t->target_oid.name_len,
168 t->target_oid.name, t->flags);
174 static void dump_request(struct seq_file *s, struct ceph_osd_request *req)
178 seq_printf(s, "%llu\t", req->r_tid);
179 dump_target(s, &req->r_t);
181 seq_printf(s, "\t%d", req->r_attempts);
183 for (i = 0; i < req->r_num_ops; i++) {
184 struct ceph_osd_req_op *op = &req->r_ops[i];
186 seq_printf(s, "%s%s", (i == 0 ? "\t" : ","),
187 ceph_osd_op_name(op->op));
188 if (op->op == CEPH_OSD_OP_WATCH)
190 ceph_osd_watch_op_name(op->watch.op));
196 static void dump_requests(struct seq_file *s, struct ceph_osd *osd)
200 mutex_lock(&osd->lock);
201 for (n = rb_first(&osd->o_requests); n; n = rb_next(n)) {
202 struct ceph_osd_request *req =
203 rb_entry(n, struct ceph_osd_request, r_node);
205 dump_request(s, req);
208 mutex_unlock(&osd->lock);
211 static void dump_linger_request(struct seq_file *s,
212 struct ceph_osd_linger_request *lreq)
214 seq_printf(s, "%llu\t", lreq->linger_id);
215 dump_target(s, &lreq->t);
217 seq_printf(s, "\t%u\t%s%s/%d\n", lreq->register_gen,
218 lreq->is_watch ? "W" : "N", lreq->committed ? "C" : "",
222 static void dump_linger_requests(struct seq_file *s, struct ceph_osd *osd)
226 mutex_lock(&osd->lock);
227 for (n = rb_first(&osd->o_linger_requests); n; n = rb_next(n)) {
228 struct ceph_osd_linger_request *lreq =
229 rb_entry(n, struct ceph_osd_linger_request, node);
231 dump_linger_request(s, lreq);
234 mutex_unlock(&osd->lock);
237 static int osdc_show(struct seq_file *s, void *pp)
239 struct ceph_client *client = s->private;
240 struct ceph_osd_client *osdc = &client->osdc;
243 down_read(&osdc->lock);
244 seq_printf(s, "REQUESTS %d homeless %d\n",
245 atomic_read(&osdc->num_requests),
246 atomic_read(&osdc->num_homeless));
247 for (n = rb_first(&osdc->osds); n; n = rb_next(n)) {
248 struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node);
250 dump_requests(s, osd);
252 dump_requests(s, &osdc->homeless_osd);
254 seq_puts(s, "LINGER REQUESTS\n");
255 for (n = rb_first(&osdc->osds); n; n = rb_next(n)) {
256 struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node);
258 dump_linger_requests(s, osd);
260 dump_linger_requests(s, &osdc->homeless_osd);
262 up_read(&osdc->lock);
266 static int client_options_show(struct seq_file *s, void *p)
268 struct ceph_client *client = s->private;
271 ret = ceph_print_client_options(s, client);
279 CEPH_DEFINE_SHOW_FUNC(monmap_show)
280 CEPH_DEFINE_SHOW_FUNC(osdmap_show)
281 CEPH_DEFINE_SHOW_FUNC(monc_show)
282 CEPH_DEFINE_SHOW_FUNC(osdc_show)
283 CEPH_DEFINE_SHOW_FUNC(client_options_show)
285 int ceph_debugfs_init(void)
287 ceph_debugfs_dir = debugfs_create_dir("ceph", NULL);
288 if (!ceph_debugfs_dir)
293 void ceph_debugfs_cleanup(void)
295 debugfs_remove(ceph_debugfs_dir);
298 int ceph_debugfs_client_init(struct ceph_client *client)
303 snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid,
304 client->monc.auth->global_id);
306 dout("ceph_debugfs_client_init %p %s\n", client, name);
308 BUG_ON(client->debugfs_dir);
309 client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);
310 if (!client->debugfs_dir)
313 client->monc.debugfs_file = debugfs_create_file("monc",
318 if (!client->monc.debugfs_file)
321 client->osdc.debugfs_file = debugfs_create_file("osdc",
326 if (!client->osdc.debugfs_file)
329 client->debugfs_monmap = debugfs_create_file("monmap",
334 if (!client->debugfs_monmap)
337 client->debugfs_osdmap = debugfs_create_file("osdmap",
342 if (!client->debugfs_osdmap)
345 client->debugfs_options = debugfs_create_file("client_options",
349 &client_options_show_fops);
350 if (!client->debugfs_options)
356 ceph_debugfs_client_cleanup(client);
360 void ceph_debugfs_client_cleanup(struct ceph_client *client)
362 dout("ceph_debugfs_client_cleanup %p\n", client);
363 debugfs_remove(client->debugfs_options);
364 debugfs_remove(client->debugfs_osdmap);
365 debugfs_remove(client->debugfs_monmap);
366 debugfs_remove(client->osdc.debugfs_file);
367 debugfs_remove(client->monc.debugfs_file);
368 debugfs_remove(client->debugfs_dir);
371 #else /* CONFIG_DEBUG_FS */
373 int ceph_debugfs_init(void)
378 void ceph_debugfs_cleanup(void)
382 int ceph_debugfs_client_init(struct ceph_client *client)
387 void ceph_debugfs_client_cleanup(struct ceph_client *client)
391 #endif /* CONFIG_DEBUG_FS */
393 EXPORT_SYMBOL(ceph_debugfs_init);
394 EXPORT_SYMBOL(ceph_debugfs_cleanup);