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3d14c5d2 YS |
1 | #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 | |
25 | * .../dentry_lru - dump contents of dentry lru | |
26 | * .../caps - expose cap (reservation) stats | |
27 | * .../bdi - symlink to ../../bdi/something | |
28 | */ | |
29 | ||
30 | static struct dentry *ceph_debugfs_dir; | |
31 | ||
32 | static int monmap_show(struct seq_file *s, void *p) | |
33 | { | |
34 | int i; | |
35 | struct ceph_client *client = s->private; | |
36 | ||
37 | if (client->monc.monmap == NULL) | |
38 | return 0; | |
39 | ||
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]; | |
44 | ||
45 | seq_printf(s, "\t%s%lld\t%s\n", | |
46 | ENTITY_NAME(inst->name), | |
47 | ceph_pr_addr(&inst->addr.in_addr)); | |
48 | } | |
49 | return 0; | |
50 | } | |
51 | ||
52 | static int osdmap_show(struct seq_file *s, void *p) | |
53 | { | |
54 | int i; | |
55 | struct ceph_client *client = s->private; | |
35fea3a1 | 56 | struct ceph_osdmap *map = client->osdc.osdmap; |
3d14c5d2 YS |
57 | struct rb_node *n; |
58 | ||
35fea3a1 | 59 | if (map == NULL) |
3d14c5d2 | 60 | return 0; |
35fea3a1 ID |
61 | |
62 | seq_printf(s, "epoch %d\n", map->epoch); | |
3d14c5d2 | 63 | seq_printf(s, "flags%s%s\n", |
35fea3a1 ID |
64 | (map->flags & CEPH_OSDMAP_NEARFULL) ? " NEARFULL" : "", |
65 | (map->flags & CEPH_OSDMAP_FULL) ? " FULL" : ""); | |
66 | ||
67 | for (n = rb_first(&map->pg_pools); n; n = rb_next(n)) { | |
3d14c5d2 YS |
68 | struct ceph_pg_pool_info *pool = |
69 | rb_entry(n, struct ceph_pg_pool_info, node); | |
35fea3a1 | 70 | |
4f6a7e5e SW |
71 | seq_printf(s, "pg_pool %llu pg_num %d / %d\n", |
72 | (unsigned long long)pool->id, pool->pg_num, | |
73 | pool->pg_num_mask); | |
3d14c5d2 | 74 | } |
35fea3a1 ID |
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]; | |
3d14c5d2 YS |
78 | char sb[64]; |
79 | ||
0a2800d7 | 80 | seq_printf(s, "osd%d\t%s\t%3d%%\t(%s)\n", |
3d14c5d2 | 81 | i, ceph_pr_addr(&addr->in_addr), |
35fea3a1 | 82 | ((map->osd_weight[i]*100) >> 16), |
3d14c5d2 YS |
83 | ceph_osdmap_state_str(sb, sizeof(sb), state)); |
84 | } | |
35fea3a1 | 85 | |
3d14c5d2 YS |
86 | return 0; |
87 | } | |
88 | ||
89 | static int monc_show(struct seq_file *s, void *p) | |
90 | { | |
91 | struct ceph_client *client = s->private; | |
92 | struct ceph_mon_generic_request *req; | |
93 | struct ceph_mon_client *monc = &client->monc; | |
94 | struct rb_node *rp; | |
95 | ||
96 | mutex_lock(&monc->mutex); | |
97 | ||
98 | if (monc->have_mdsmap) | |
95c96174 | 99 | seq_printf(s, "have mdsmap %u\n", (unsigned int)monc->have_mdsmap); |
3d14c5d2 | 100 | if (monc->have_osdmap) |
95c96174 | 101 | seq_printf(s, "have osdmap %u\n", (unsigned int)monc->have_osdmap); |
3d14c5d2 YS |
102 | if (monc->want_next_osdmap) |
103 | seq_printf(s, "want next osdmap\n"); | |
104 | ||
105 | for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) { | |
106 | __u16 op; | |
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); | |
111 | else | |
112 | seq_printf(s, "%lld unknown\n", req->tid); | |
113 | } | |
114 | ||
115 | mutex_unlock(&monc->mutex); | |
116 | return 0; | |
117 | } | |
118 | ||
119 | static int osdc_show(struct seq_file *s, void *pp) | |
120 | { | |
121 | struct ceph_client *client = s->private; | |
122 | struct ceph_osd_client *osdc = &client->osdc; | |
123 | struct rb_node *p; | |
124 | ||
125 | mutex_lock(&osdc->request_mutex); | |
126 | for (p = rb_first(&osdc->requests); p; p = rb_next(p)) { | |
127 | struct ceph_osd_request *req; | |
79528734 | 128 | unsigned int i; |
1b83bef2 | 129 | int opcode; |
3d14c5d2 YS |
130 | |
131 | req = rb_entry(p, struct ceph_osd_request, r_node); | |
132 | ||
5b191d99 | 133 | seq_printf(s, "%lld\tosd%d\t%lld.%x\t", req->r_tid, |
3d14c5d2 | 134 | req->r_osd ? req->r_osd->o_osd : -1, |
5b191d99 | 135 | req->r_pgid.pool, req->r_pgid.seed); |
3d14c5d2 | 136 | |
3c972c95 ID |
137 | seq_printf(s, "%.*s", req->r_base_oid.name_len, |
138 | req->r_base_oid.name); | |
3d14c5d2 YS |
139 | |
140 | if (req->r_reassert_version.epoch) | |
141 | seq_printf(s, "\t%u'%llu", | |
95c96174 | 142 | (unsigned int)le32_to_cpu(req->r_reassert_version.epoch), |
3d14c5d2 YS |
143 | le64_to_cpu(req->r_reassert_version.version)); |
144 | else | |
145 | seq_printf(s, "\t"); | |
146 | ||
1b83bef2 | 147 | for (i = 0; i < req->r_num_ops; i++) { |
79528734 | 148 | opcode = req->r_ops[i].op; |
3d14c5d2 | 149 | seq_printf(s, "\t%s", ceph_osd_op_name(opcode)); |
3d14c5d2 YS |
150 | } |
151 | ||
152 | seq_printf(s, "\n"); | |
153 | } | |
154 | mutex_unlock(&osdc->request_mutex); | |
155 | return 0; | |
156 | } | |
157 | ||
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) | |
162 | ||
163 | int ceph_debugfs_init(void) | |
164 | { | |
165 | ceph_debugfs_dir = debugfs_create_dir("ceph", NULL); | |
166 | if (!ceph_debugfs_dir) | |
167 | return -ENOMEM; | |
168 | return 0; | |
169 | } | |
170 | ||
171 | void ceph_debugfs_cleanup(void) | |
172 | { | |
173 | debugfs_remove(ceph_debugfs_dir); | |
174 | } | |
175 | ||
176 | int ceph_debugfs_client_init(struct ceph_client *client) | |
177 | { | |
178 | int ret = -ENOMEM; | |
179 | char name[80]; | |
180 | ||
181 | snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid, | |
182 | client->monc.auth->global_id); | |
183 | ||
d1c338a5 SW |
184 | dout("ceph_debugfs_client_init %p %s\n", client, name); |
185 | ||
186 | BUG_ON(client->debugfs_dir); | |
3d14c5d2 YS |
187 | client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir); |
188 | if (!client->debugfs_dir) | |
189 | goto out; | |
190 | ||
191 | client->monc.debugfs_file = debugfs_create_file("monc", | |
192 | 0600, | |
193 | client->debugfs_dir, | |
194 | client, | |
195 | &monc_show_fops); | |
196 | if (!client->monc.debugfs_file) | |
197 | goto out; | |
198 | ||
199 | client->osdc.debugfs_file = debugfs_create_file("osdc", | |
200 | 0600, | |
201 | client->debugfs_dir, | |
202 | client, | |
203 | &osdc_show_fops); | |
204 | if (!client->osdc.debugfs_file) | |
205 | goto out; | |
206 | ||
207 | client->debugfs_monmap = debugfs_create_file("monmap", | |
208 | 0600, | |
209 | client->debugfs_dir, | |
210 | client, | |
211 | &monmap_show_fops); | |
212 | if (!client->debugfs_monmap) | |
213 | goto out; | |
214 | ||
215 | client->debugfs_osdmap = debugfs_create_file("osdmap", | |
216 | 0600, | |
217 | client->debugfs_dir, | |
218 | client, | |
219 | &osdmap_show_fops); | |
220 | if (!client->debugfs_osdmap) | |
221 | goto out; | |
222 | ||
223 | return 0; | |
224 | ||
225 | out: | |
226 | ceph_debugfs_client_cleanup(client); | |
227 | return ret; | |
228 | } | |
229 | ||
230 | void ceph_debugfs_client_cleanup(struct ceph_client *client) | |
231 | { | |
d1c338a5 | 232 | dout("ceph_debugfs_client_cleanup %p\n", client); |
3d14c5d2 YS |
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); | |
238 | } | |
239 | ||
240 | #else /* CONFIG_DEBUG_FS */ | |
241 | ||
242 | int ceph_debugfs_init(void) | |
243 | { | |
244 | return 0; | |
245 | } | |
246 | ||
247 | void ceph_debugfs_cleanup(void) | |
248 | { | |
249 | } | |
250 | ||
602adf40 | 251 | int ceph_debugfs_client_init(struct ceph_client *client) |
3d14c5d2 YS |
252 | { |
253 | return 0; | |
254 | } | |
255 | ||
256 | void ceph_debugfs_client_cleanup(struct ceph_client *client) | |
257 | { | |
258 | } | |
259 | ||
260 | #endif /* CONFIG_DEBUG_FS */ | |
261 | ||
262 | EXPORT_SYMBOL(ceph_debugfs_init); | |
263 | EXPORT_SYMBOL(ceph_debugfs_cleanup); |