1 // SPDX-License-Identifier: GPL-2.0
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
26  *      .../client_options - libceph-only (i.e. not rbd or cephfs) options
27  *      .../dentry_lru  - dump contents of dentry lru
28  *      .../caps        - expose cap (reservation) stats
29  *      .../bdi         - symlink to ../../bdi/something
34 static int monmap_show(struct seq_file *s, void *p)  in monmap_show()  argument
37 	struct ceph_client *client = s->private;  in monmap_show()
39 	if (client->monc.monmap == NULL)  in monmap_show()
42 	seq_printf(s, "epoch %d\n", client->monc.monmap->epoch);  in monmap_show()
43 	for (i = 0; i < client->monc.monmap->num_mon; i++) {  in monmap_show()
45 			&client->monc.monmap->mon_inst[i];  in monmap_show()
47 		seq_printf(s, "\t%s%lld\t%s\n",  in monmap_show()
48 			   ENTITY_NAME(inst->name),  in monmap_show()
49 			   ceph_pr_addr(&inst->addr));  in monmap_show()
54 static int osdmap_show(struct seq_file *s, void *p)  in osdmap_show()  argument
57 	struct ceph_client *client = s->private;  in osdmap_show()
58 	struct ceph_osd_client *osdc = &client->osdc;  in osdmap_show()
59 	struct ceph_osdmap *map = osdc->osdmap;  in osdmap_show()
65 	down_read(&osdc->lock);  in osdmap_show()
66 	seq_printf(s, "epoch %u barrier %u flags 0x%x\n", map->epoch,  in osdmap_show()
67 			osdc->epoch_barrier, map->flags);  in osdmap_show()
69 	for (n = rb_first(&map->pg_pools); n; n = rb_next(n)) {  in osdmap_show()
73 …seq_printf(s, "pool %lld '%s' type %d size %d min_size %d pg_num %u pg_num_mask %d flags 0x%llx lf…  in osdmap_show()
74 			   pi->id, pi->name, pi->type, pi->size, pi->min_size,  in osdmap_show()
75 			   pi->pg_num, pi->pg_num_mask, pi->flags,  in osdmap_show()
76 			   pi->last_force_request_resend, pi->read_tier,  in osdmap_show()
77 			   pi->write_tier);  in osdmap_show()
79 	for (i = 0; i < map->max_osd; i++) {  in osdmap_show()
80 		struct ceph_entity_addr *addr = &map->osd_addr[i];  in osdmap_show()
81 		u32 state = map->osd_state[i];  in osdmap_show()
84 		seq_printf(s, "osd%d\t%s\t%3d%%\t(%s)\t%3d%%\t%2d\n",  in osdmap_show()
86 			   ((map->osd_weight[i]*100) >> 16),  in osdmap_show()
90 					   &client->options->crush_locs));  in osdmap_show()
92 	for (n = rb_first(&map->pg_temp); n; n = rb_next(n)) {  in osdmap_show()
96 		seq_printf(s, "pg_temp %llu.%x [", pg->pgid.pool,  in osdmap_show()
97 			   pg->pgid.seed);  in osdmap_show()
98 		for (i = 0; i < pg->pg_temp.len; i++)  in osdmap_show()
99 			seq_printf(s, "%s%d", (i == 0 ? "" : ","),  in osdmap_show()
100 				   pg->pg_temp.osds[i]);  in osdmap_show()
101 		seq_printf(s, "]\n");  in osdmap_show()
103 	for (n = rb_first(&map->primary_temp); n; n = rb_next(n)) {  in osdmap_show()
107 		seq_printf(s, "primary_temp %llu.%x %d\n", pg->pgid.pool,  in osdmap_show()
108 			   pg->pgid.seed, pg->primary_temp.osd);  in osdmap_show()
110 	for (n = rb_first(&map->pg_upmap); n; n = rb_next(n)) {  in osdmap_show()
114 		seq_printf(s, "pg_upmap %llu.%x [", pg->pgid.pool,  in osdmap_show()
115 			   pg->pgid.seed);  in osdmap_show()
116 		for (i = 0; i < pg->pg_upmap.len; i++)  in osdmap_show()
117 			seq_printf(s, "%s%d", (i == 0 ? "" : ","),  in osdmap_show()
118 				   pg->pg_upmap.osds[i]);  in osdmap_show()
119 		seq_printf(s, "]\n");  in osdmap_show()
121 	for (n = rb_first(&map->pg_upmap_items); n; n = rb_next(n)) {  in osdmap_show()
125 		seq_printf(s, "pg_upmap_items %llu.%x [", pg->pgid.pool,  in osdmap_show()
126 			   pg->pgid.seed);  in osdmap_show()
127 		for (i = 0; i < pg->pg_upmap_items.len; i++)  in osdmap_show()
128 			seq_printf(s, "%s%d->%d", (i == 0 ? "" : ","),  in osdmap_show()
129 				   pg->pg_upmap_items.from_to[i][0],  in osdmap_show()
130 				   pg->pg_upmap_items.from_to[i][1]);  in osdmap_show()
131 		seq_printf(s, "]\n");  in osdmap_show()
134 	up_read(&osdc->lock);  in osdmap_show()
138 static int monc_show(struct seq_file *s, void *p)  in monc_show()  argument
140 	struct ceph_client *client = s->private;  in monc_show()
142 	struct ceph_mon_client *monc = &client->monc;  in monc_show()
146 	mutex_lock(&monc->mutex);  in monc_show()
148 	for (i = 0; i < ARRAY_SIZE(monc->subs); i++) {  in monc_show()
149 		seq_printf(s, "have %s %u", ceph_sub_str[i],  in monc_show()
150 			   monc->subs[i].have);  in monc_show()
151 		if (monc->subs[i].want)  in monc_show()
152 			seq_printf(s, " want %llu%s",  in monc_show()
153 				   le64_to_cpu(monc->subs[i].item.start),  in monc_show()
154 				   (monc->subs[i].item.flags &  in monc_show()
156 		seq_putc(s, '\n');  in monc_show()
158 	seq_printf(s, "fs_cluster_id %d\n", monc->fs_cluster_id);  in monc_show()
160 	for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) {  in monc_show()
163 		op = le16_to_cpu(req->request->hdr.type);  in monc_show()
165 			seq_printf(s, "%llu statfs\n", req->tid);  in monc_show()
167 			seq_printf(s, "%llu mon_get_version", req->tid);  in monc_show()
169 			seq_printf(s, "%llu unknown\n", req->tid);  in monc_show()
172 	mutex_unlock(&monc->mutex);  in monc_show()
176 static void dump_spgid(struct seq_file *s, const struct ceph_spg *spgid)  in dump_spgid()  argument
178 	seq_printf(s, "%llu.%x", spgid->pgid.pool, spgid->pgid.seed);  in dump_spgid()
179 	if (spgid->shard != CEPH_SPG_NOSHARD)  in dump_spgid()
180 		seq_printf(s, "s%d", spgid->shard);  in dump_spgid()
183 static void dump_target(struct seq_file *s, struct ceph_osd_request_target *t)  in dump_target()  argument
187 	seq_printf(s, "osd%d\t%llu.%x\t", t->osd, t->pgid.pool, t->pgid.seed);  in dump_target()
188 	dump_spgid(s, &t->spgid);  in dump_target()
189 	seq_puts(s, "\t[");  in dump_target()
190 	for (i = 0; i < t->up.size; i++)  in dump_target()
191 		seq_printf(s, "%s%d", (!i ? "" : ","), t->up.osds[i]);  in dump_target()
192 	seq_printf(s, "]/%d\t[", t->up.primary);  in dump_target()
193 	for (i = 0; i < t->acting.size; i++)  in dump_target()
194 		seq_printf(s, "%s%d", (!i ? "" : ","), t->acting.osds[i]);  in dump_target()
195 	seq_printf(s, "]/%d\te%u\t", t->acting.primary, t->epoch);  in dump_target()
196 	if (t->target_oloc.pool_ns) {  in dump_target()
197 		seq_printf(s, "%*pE/%*pE\t0x%x",  in dump_target()
198 			(int)t->target_oloc.pool_ns->len,  in dump_target()
199 			t->target_oloc.pool_ns->str,  in dump_target()
200 			t->target_oid.name_len, t->target_oid.name, t->flags);  in dump_target()
202 		seq_printf(s, "%*pE\t0x%x", t->target_oid.name_len,  in dump_target()
203 			t->target_oid.name, t->flags);  in dump_target()
205 	if (t->paused)  in dump_target()
206 		seq_puts(s, "\tP");  in dump_target()
209 static void dump_request(struct seq_file *s, struct ceph_osd_request *req)  in dump_request()  argument
213 	seq_printf(s, "%llu\t", req->r_tid);  in dump_request()
214 	dump_target(s, &req->r_t);  in dump_request()
216 	seq_printf(s, "\t%d", req->r_attempts);  in dump_request()
218 	for (i = 0; i < req->r_num_ops; i++) {  in dump_request()
219 		struct ceph_osd_req_op *op = &req->r_ops[i];  in dump_request()
221 		seq_printf(s, "%s%s", (i == 0 ? "\t" : ","),  in dump_request()
222 			   ceph_osd_op_name(op->op));  in dump_request()
223 		if (op->op == CEPH_OSD_OP_WATCH)  in dump_request()
224 			seq_printf(s, "-%s",  in dump_request()
225 				   ceph_osd_watch_op_name(op->watch.op));  in dump_request()
226 		else if (op->op == CEPH_OSD_OP_CALL)  in dump_request()
227 			seq_printf(s, "-%s/%s", op->cls.class_name,  in dump_request()
228 				   op->cls.method_name);  in dump_request()
231 	seq_putc(s, '\n');  in dump_request()
234 static void dump_requests(struct seq_file *s, struct ceph_osd *osd)  in dump_requests()  argument
238 	mutex_lock(&osd->lock);  in dump_requests()
239 	for (n = rb_first(&osd->o_requests); n; n = rb_next(n)) {  in dump_requests()
243 		dump_request(s, req);  in dump_requests()
246 	mutex_unlock(&osd->lock);  in dump_requests()
249 static void dump_linger_request(struct seq_file *s,  in dump_linger_request()  argument
252 	seq_printf(s, "%llu\t", lreq->linger_id);  in dump_linger_request()
253 	dump_target(s, &lreq->t);  in dump_linger_request()
255 	seq_printf(s, "\t%u\t%s%s/%d\n", lreq->register_gen,  in dump_linger_request()
256 		   lreq->is_watch ? "W" : "N", lreq->committed ? "C" : "",  in dump_linger_request()
257 		   lreq->last_error);  in dump_linger_request()
260 static void dump_linger_requests(struct seq_file *s, struct ceph_osd *osd)  in dump_linger_requests()  argument
264 	mutex_lock(&osd->lock);  in dump_linger_requests()
265 	for (n = rb_first(&osd->o_linger_requests); n; n = rb_next(n)) {  in dump_linger_requests()
269 		dump_linger_request(s, lreq);  in dump_linger_requests()
272 	mutex_unlock(&osd->lock);  in dump_linger_requests()
275 static void dump_snapid(struct seq_file *s, u64 snapid)  in dump_snapid()  argument
278 		seq_puts(s, "head");  in dump_snapid()
280 		seq_puts(s, "snapdir");  in dump_snapid()
282 		seq_printf(s, "%llx", snapid);  in dump_snapid()
285 static void dump_name_escaped(struct seq_file *s, unsigned char *name,  in dump_name_escaped()  argument
293 			seq_printf(s, "%%%02x", name[i]);  in dump_name_escaped()
295 			seq_putc(s, name[i]);  in dump_name_escaped()
300 static void dump_hoid(struct seq_file *s, const struct ceph_hobject_id *hoid)  in dump_hoid()  argument
302 	if (hoid->snapid == 0 && hoid->hash == 0 && !hoid->is_max &&  in dump_hoid()
303 	    hoid->pool == S64_MIN) {  in dump_hoid()
304 		seq_puts(s, "MIN");  in dump_hoid()
307 	if (hoid->is_max) {  in dump_hoid()
308 		seq_puts(s, "MAX");  in dump_hoid()
311 	seq_printf(s, "%lld:%08x:", hoid->pool, hoid->hash_reverse_bits);  in dump_hoid()
312 	dump_name_escaped(s, hoid->nspace, hoid->nspace_len);  in dump_hoid()
313 	seq_putc(s, ':');  in dump_hoid()
314 	dump_name_escaped(s, hoid->key, hoid->key_len);  in dump_hoid()
315 	seq_putc(s, ':');  in dump_hoid()
316 	dump_name_escaped(s, hoid->oid, hoid->oid_len);  in dump_hoid()
317 	seq_putc(s, ':');  in dump_hoid()
318 	dump_snapid(s, hoid->snapid);  in dump_hoid()
321 static void dump_backoffs(struct seq_file *s, struct ceph_osd *osd)  in dump_backoffs()  argument
325 	mutex_lock(&osd->lock);  in dump_backoffs()
326 	for (n = rb_first(&osd->o_backoffs_by_id); n; n = rb_next(n)) {  in dump_backoffs()
330 		seq_printf(s, "osd%d\t", osd->o_osd);  in dump_backoffs()
331 		dump_spgid(s, &backoff->spgid);  in dump_backoffs()
332 		seq_printf(s, "\t%llu\t", backoff->id);  in dump_backoffs()
333 		dump_hoid(s, backoff->begin);  in dump_backoffs()
334 		seq_putc(s, '\t');  in dump_backoffs()
335 		dump_hoid(s, backoff->end);  in dump_backoffs()
336 		seq_putc(s, '\n');  in dump_backoffs()
339 	mutex_unlock(&osd->lock);  in dump_backoffs()
342 static int osdc_show(struct seq_file *s, void *pp)  in osdc_show()  argument
344 	struct ceph_client *client = s->private;  in osdc_show()
345 	struct ceph_osd_client *osdc = &client->osdc;  in osdc_show()
348 	down_read(&osdc->lock);  in osdc_show()
349 	seq_printf(s, "REQUESTS %d homeless %d\n",  in osdc_show()
350 		   atomic_read(&osdc->num_requests),  in osdc_show()
351 		   atomic_read(&osdc->num_homeless));  in osdc_show()
352 	for (n = rb_first(&osdc->osds); n; n = rb_next(n)) {  in osdc_show()
355 		dump_requests(s, osd);  in osdc_show()
357 	dump_requests(s, &osdc->homeless_osd);  in osdc_show()
359 	seq_puts(s, "LINGER REQUESTS\n");  in osdc_show()
360 	for (n = rb_first(&osdc->osds); n; n = rb_next(n)) {  in osdc_show()
363 		dump_linger_requests(s, osd);  in osdc_show()
365 	dump_linger_requests(s, &osdc->homeless_osd);  in osdc_show()
367 	seq_puts(s, "BACKOFFS\n");  in osdc_show()
368 	for (n = rb_first(&osdc->osds); n; n = rb_next(n)) {  in osdc_show()
371 		dump_backoffs(s, osd);  in osdc_show()
374 	up_read(&osdc->lock);  in osdc_show()
378 static int client_options_show(struct seq_file *s, void *p)  in client_options_show()  argument
380 	struct ceph_client *client = s->private;  in client_options_show()
383 	ret = ceph_print_client_options(s, client, true);  in client_options_show()
387 	seq_putc(s, '\n');  in client_options_show()
411 	snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid,  in ceph_debugfs_client_init()
412 		 client->monc.auth->global_id);  in ceph_debugfs_client_init()
414 	dout("ceph_debugfs_client_init %p %s\n", client, name);  in ceph_debugfs_client_init()
416 	client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);  in ceph_debugfs_client_init()
418 	client->monc.debugfs_file = debugfs_create_file("monc",  in ceph_debugfs_client_init()
420 						      client->debugfs_dir,  in ceph_debugfs_client_init()
424 	client->osdc.debugfs_file = debugfs_create_file("osdc",  in ceph_debugfs_client_init()
426 						      client->debugfs_dir,  in ceph_debugfs_client_init()
430 	client->debugfs_monmap = debugfs_create_file("monmap",  in ceph_debugfs_client_init()
432 					client->debugfs_dir,  in ceph_debugfs_client_init()
436 	client->debugfs_osdmap = debugfs_create_file("osdmap",  in ceph_debugfs_client_init()
438 					client->debugfs_dir,  in ceph_debugfs_client_init()
442 	client->debugfs_options = debugfs_create_file("client_options",  in ceph_debugfs_client_init()
444 					client->debugfs_dir,  in ceph_debugfs_client_init()
452 	debugfs_remove(client->debugfs_options);  in ceph_debugfs_client_cleanup()
453 	debugfs_remove(client->debugfs_osdmap);  in ceph_debugfs_client_cleanup()
454 	debugfs_remove(client->debugfs_monmap);  in ceph_debugfs_client_cleanup()
455 	debugfs_remove(client->osdc.debugfs_file);  in ceph_debugfs_client_cleanup()
456 	debugfs_remove(client->monc.debugfs_file);  in ceph_debugfs_client_cleanup()
457 	debugfs_remove(client->debugfs_dir);  in ceph_debugfs_client_cleanup()