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 * .../dentry_lru - dump contents of dentry lru
26 * .../caps - expose cap (reservation) stats
27 * .../bdi - symlink to ../../bdi/something
30 static struct dentry *ceph_debugfs_dir;
32 static int monmap_show(struct seq_file *s, void *p)
35 struct ceph_client *client = s->private;
37 if (client->monc.monmap == NULL)
40 seq_printf(s, "epoch %d\n", client->monc.monmap->epoch);
41 for (i = 0; i < client->monc.monmap->num_mon; i++) {
42 struct ceph_entity_inst *inst =
43 &client->monc.monmap->mon_inst[i];
45 seq_printf(s, "\t%s%lld\t%s\n",
46 ENTITY_NAME(inst->name),
47 ceph_pr_addr(&inst->addr.in_addr));
52 static int osdmap_show(struct seq_file *s, void *p)
55 struct ceph_client *client = s->private;
56 struct ceph_osdmap *map = client->osdc.osdmap;
62 seq_printf(s, "epoch %d\n", map->epoch);
63 seq_printf(s, "flags%s%s\n",
64 (map->flags & CEPH_OSDMAP_NEARFULL) ? " NEARFULL" : "",
65 (map->flags & CEPH_OSDMAP_FULL) ? " FULL" : "");
67 for (n = rb_first(&map->pg_pools); n; n = rb_next(n)) {
68 struct ceph_pg_pool_info *pool =
69 rb_entry(n, struct ceph_pg_pool_info, node);
71 seq_printf(s, "pg_pool %llu pg_num %d / %d\n",
72 (unsigned long long)pool->id, pool->pg_num,
75 for (i = 0; i < map->max_osd; i++) {
76 struct ceph_entity_addr *addr = &map->osd_addr[i];
77 int state = map->osd_state[i];
80 seq_printf(s, "osd%d\t%s\t%3d%%\t(%s)\n",
81 i, ceph_pr_addr(&addr->in_addr),
82 ((map->osd_weight[i]*100) >> 16),
83 ceph_osdmap_state_str(sb, sizeof(sb), state));
89 static int monc_show(struct seq_file *s, void *p)
91 struct ceph_client *client = s->private;
92 struct ceph_mon_generic_request *req;
93 struct ceph_mon_client *monc = &client->monc;
96 mutex_lock(&monc->mutex);
98 if (monc->have_mdsmap)
99 seq_printf(s, "have mdsmap %u\n", (unsigned int)monc->have_mdsmap);
100 if (monc->have_osdmap)
101 seq_printf(s, "have osdmap %u\n", (unsigned int)monc->have_osdmap);
102 if (monc->want_next_osdmap)
103 seq_printf(s, "want next osdmap\n");
105 for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) {
107 req = rb_entry(rp, struct ceph_mon_generic_request, node);
108 op = le16_to_cpu(req->request->hdr.type);
109 if (op == CEPH_MSG_STATFS)
110 seq_printf(s, "%lld statfs\n", req->tid);
112 seq_printf(s, "%lld unknown\n", req->tid);
115 mutex_unlock(&monc->mutex);
119 static int osdc_show(struct seq_file *s, void *pp)
121 struct ceph_client *client = s->private;
122 struct ceph_osd_client *osdc = &client->osdc;
125 mutex_lock(&osdc->request_mutex);
126 for (p = rb_first(&osdc->requests); p; p = rb_next(p)) {
127 struct ceph_osd_request *req;
131 req = rb_entry(p, struct ceph_osd_request, r_node);
133 seq_printf(s, "%lld\tosd%d\t%lld.%x\t", req->r_tid,
134 req->r_osd ? req->r_osd->o_osd : -1,
135 req->r_pgid.pool, req->r_pgid.seed);
137 seq_printf(s, "%.*s", req->r_base_oid.name_len,
138 req->r_base_oid.name);
140 if (req->r_reassert_version.epoch)
141 seq_printf(s, "\t%u'%llu",
142 (unsigned int)le32_to_cpu(req->r_reassert_version.epoch),
143 le64_to_cpu(req->r_reassert_version.version));
147 for (i = 0; i < req->r_num_ops; i++) {
148 opcode = req->r_ops[i].op;
149 seq_printf(s, "\t%s", ceph_osd_op_name(opcode));
154 mutex_unlock(&osdc->request_mutex);
158 CEPH_DEFINE_SHOW_FUNC(monmap_show)
159 CEPH_DEFINE_SHOW_FUNC(osdmap_show)
160 CEPH_DEFINE_SHOW_FUNC(monc_show)
161 CEPH_DEFINE_SHOW_FUNC(osdc_show)
163 int ceph_debugfs_init(void)
165 ceph_debugfs_dir = debugfs_create_dir("ceph", NULL);
166 if (!ceph_debugfs_dir)
171 void ceph_debugfs_cleanup(void)
173 debugfs_remove(ceph_debugfs_dir);
176 int ceph_debugfs_client_init(struct ceph_client *client)
181 snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid,
182 client->monc.auth->global_id);
184 dout("ceph_debugfs_client_init %p %s\n", client, name);
186 BUG_ON(client->debugfs_dir);
187 client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);
188 if (!client->debugfs_dir)
191 client->monc.debugfs_file = debugfs_create_file("monc",
196 if (!client->monc.debugfs_file)
199 client->osdc.debugfs_file = debugfs_create_file("osdc",
204 if (!client->osdc.debugfs_file)
207 client->debugfs_monmap = debugfs_create_file("monmap",
212 if (!client->debugfs_monmap)
215 client->debugfs_osdmap = debugfs_create_file("osdmap",
220 if (!client->debugfs_osdmap)
226 ceph_debugfs_client_cleanup(client);
230 void ceph_debugfs_client_cleanup(struct ceph_client *client)
232 dout("ceph_debugfs_client_cleanup %p\n", client);
233 debugfs_remove(client->debugfs_osdmap);
234 debugfs_remove(client->debugfs_monmap);
235 debugfs_remove(client->osdc.debugfs_file);
236 debugfs_remove(client->monc.debugfs_file);
237 debugfs_remove(client->debugfs_dir);
240 #else /* CONFIG_DEBUG_FS */
242 int ceph_debugfs_init(void)
247 void ceph_debugfs_cleanup(void)
251 int ceph_debugfs_client_init(struct ceph_client *client)
256 void ceph_debugfs_client_cleanup(struct ceph_client *client)
260 #endif /* CONFIG_DEBUG_FS */
262 EXPORT_SYMBOL(ceph_debugfs_init);
263 EXPORT_SYMBOL(ceph_debugfs_cleanup);