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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; | |
56 | struct rb_node *n; | |
57 | ||
58 | if (client->osdc.osdmap == NULL) | |
59 | return 0; | |
60 | seq_printf(s, "epoch %d\n", client->osdc.osdmap->epoch); | |
61 | seq_printf(s, "flags%s%s\n", | |
62 | (client->osdc.osdmap->flags & CEPH_OSDMAP_NEARFULL) ? | |
63 | " NEARFULL" : "", | |
64 | (client->osdc.osdmap->flags & CEPH_OSDMAP_FULL) ? | |
65 | " FULL" : ""); | |
66 | for (n = rb_first(&client->osdc.osdmap->pg_pools); n; n = rb_next(n)) { | |
67 | struct ceph_pg_pool_info *pool = | |
68 | rb_entry(n, struct ceph_pg_pool_info, node); | |
4f6a7e5e SW |
69 | seq_printf(s, "pg_pool %llu pg_num %d / %d\n", |
70 | (unsigned long long)pool->id, pool->pg_num, | |
71 | pool->pg_num_mask); | |
3d14c5d2 YS |
72 | } |
73 | for (i = 0; i < client->osdc.osdmap->max_osd; i++) { | |
74 | struct ceph_entity_addr *addr = | |
75 | &client->osdc.osdmap->osd_addr[i]; | |
76 | int state = client->osdc.osdmap->osd_state[i]; | |
77 | char sb[64]; | |
78 | ||
79 | seq_printf(s, "\tosd%d\t%s\t%3d%%\t(%s)\n", | |
80 | i, ceph_pr_addr(&addr->in_addr), | |
81 | ((client->osdc.osdmap->osd_weight[i]*100) >> 16), | |
82 | ceph_osdmap_state_str(sb, sizeof(sb), state)); | |
83 | } | |
84 | return 0; | |
85 | } | |
86 | ||
87 | static int monc_show(struct seq_file *s, void *p) | |
88 | { | |
89 | struct ceph_client *client = s->private; | |
90 | struct ceph_mon_generic_request *req; | |
91 | struct ceph_mon_client *monc = &client->monc; | |
92 | struct rb_node *rp; | |
93 | ||
94 | mutex_lock(&monc->mutex); | |
95 | ||
96 | if (monc->have_mdsmap) | |
95c96174 | 97 | seq_printf(s, "have mdsmap %u\n", (unsigned int)monc->have_mdsmap); |
3d14c5d2 | 98 | if (monc->have_osdmap) |
95c96174 | 99 | seq_printf(s, "have osdmap %u\n", (unsigned int)monc->have_osdmap); |
3d14c5d2 YS |
100 | if (monc->want_next_osdmap) |
101 | seq_printf(s, "want next osdmap\n"); | |
102 | ||
103 | for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) { | |
104 | __u16 op; | |
105 | req = rb_entry(rp, struct ceph_mon_generic_request, node); | |
106 | op = le16_to_cpu(req->request->hdr.type); | |
107 | if (op == CEPH_MSG_STATFS) | |
108 | seq_printf(s, "%lld statfs\n", req->tid); | |
109 | else | |
110 | seq_printf(s, "%lld unknown\n", req->tid); | |
111 | } | |
112 | ||
113 | mutex_unlock(&monc->mutex); | |
114 | return 0; | |
115 | } | |
116 | ||
117 | static int osdc_show(struct seq_file *s, void *pp) | |
118 | { | |
119 | struct ceph_client *client = s->private; | |
120 | struct ceph_osd_client *osdc = &client->osdc; | |
121 | struct rb_node *p; | |
122 | ||
123 | mutex_lock(&osdc->request_mutex); | |
124 | for (p = rb_first(&osdc->requests); p; p = rb_next(p)) { | |
125 | struct ceph_osd_request *req; | |
126 | struct ceph_osd_request_head *head; | |
127 | struct ceph_osd_op *op; | |
128 | int num_ops; | |
129 | int opcode, olen; | |
130 | int i; | |
131 | ||
132 | req = rb_entry(p, struct ceph_osd_request, r_node); | |
133 | ||
5b191d99 | 134 | seq_printf(s, "%lld\tosd%d\t%lld.%x\t", req->r_tid, |
3d14c5d2 | 135 | req->r_osd ? req->r_osd->o_osd : -1, |
5b191d99 | 136 | req->r_pgid.pool, req->r_pgid.seed); |
3d14c5d2 YS |
137 | |
138 | head = req->r_request->front.iov_base; | |
139 | op = (void *)(head + 1); | |
140 | ||
141 | num_ops = le16_to_cpu(head->num_ops); | |
142 | olen = le32_to_cpu(head->object_len); | |
143 | seq_printf(s, "%.*s", olen, | |
144 | (const char *)(head->ops + num_ops)); | |
145 | ||
146 | if (req->r_reassert_version.epoch) | |
147 | seq_printf(s, "\t%u'%llu", | |
95c96174 | 148 | (unsigned int)le32_to_cpu(req->r_reassert_version.epoch), |
3d14c5d2 YS |
149 | le64_to_cpu(req->r_reassert_version.version)); |
150 | else | |
151 | seq_printf(s, "\t"); | |
152 | ||
153 | for (i = 0; i < num_ops; i++) { | |
154 | opcode = le16_to_cpu(op->op); | |
155 | seq_printf(s, "\t%s", ceph_osd_op_name(opcode)); | |
156 | op++; | |
157 | } | |
158 | ||
159 | seq_printf(s, "\n"); | |
160 | } | |
161 | mutex_unlock(&osdc->request_mutex); | |
162 | return 0; | |
163 | } | |
164 | ||
165 | CEPH_DEFINE_SHOW_FUNC(monmap_show) | |
166 | CEPH_DEFINE_SHOW_FUNC(osdmap_show) | |
167 | CEPH_DEFINE_SHOW_FUNC(monc_show) | |
168 | CEPH_DEFINE_SHOW_FUNC(osdc_show) | |
169 | ||
170 | int ceph_debugfs_init(void) | |
171 | { | |
172 | ceph_debugfs_dir = debugfs_create_dir("ceph", NULL); | |
173 | if (!ceph_debugfs_dir) | |
174 | return -ENOMEM; | |
175 | return 0; | |
176 | } | |
177 | ||
178 | void ceph_debugfs_cleanup(void) | |
179 | { | |
180 | debugfs_remove(ceph_debugfs_dir); | |
181 | } | |
182 | ||
183 | int ceph_debugfs_client_init(struct ceph_client *client) | |
184 | { | |
185 | int ret = -ENOMEM; | |
186 | char name[80]; | |
187 | ||
188 | snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid, | |
189 | client->monc.auth->global_id); | |
190 | ||
d1c338a5 SW |
191 | dout("ceph_debugfs_client_init %p %s\n", client, name); |
192 | ||
193 | BUG_ON(client->debugfs_dir); | |
3d14c5d2 YS |
194 | client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir); |
195 | if (!client->debugfs_dir) | |
196 | goto out; | |
197 | ||
198 | client->monc.debugfs_file = debugfs_create_file("monc", | |
199 | 0600, | |
200 | client->debugfs_dir, | |
201 | client, | |
202 | &monc_show_fops); | |
203 | if (!client->monc.debugfs_file) | |
204 | goto out; | |
205 | ||
206 | client->osdc.debugfs_file = debugfs_create_file("osdc", | |
207 | 0600, | |
208 | client->debugfs_dir, | |
209 | client, | |
210 | &osdc_show_fops); | |
211 | if (!client->osdc.debugfs_file) | |
212 | goto out; | |
213 | ||
214 | client->debugfs_monmap = debugfs_create_file("monmap", | |
215 | 0600, | |
216 | client->debugfs_dir, | |
217 | client, | |
218 | &monmap_show_fops); | |
219 | if (!client->debugfs_monmap) | |
220 | goto out; | |
221 | ||
222 | client->debugfs_osdmap = debugfs_create_file("osdmap", | |
223 | 0600, | |
224 | client->debugfs_dir, | |
225 | client, | |
226 | &osdmap_show_fops); | |
227 | if (!client->debugfs_osdmap) | |
228 | goto out; | |
229 | ||
230 | return 0; | |
231 | ||
232 | out: | |
233 | ceph_debugfs_client_cleanup(client); | |
234 | return ret; | |
235 | } | |
236 | ||
237 | void ceph_debugfs_client_cleanup(struct ceph_client *client) | |
238 | { | |
d1c338a5 | 239 | dout("ceph_debugfs_client_cleanup %p\n", client); |
3d14c5d2 YS |
240 | debugfs_remove(client->debugfs_osdmap); |
241 | debugfs_remove(client->debugfs_monmap); | |
242 | debugfs_remove(client->osdc.debugfs_file); | |
243 | debugfs_remove(client->monc.debugfs_file); | |
244 | debugfs_remove(client->debugfs_dir); | |
245 | } | |
246 | ||
247 | #else /* CONFIG_DEBUG_FS */ | |
248 | ||
249 | int ceph_debugfs_init(void) | |
250 | { | |
251 | return 0; | |
252 | } | |
253 | ||
254 | void ceph_debugfs_cleanup(void) | |
255 | { | |
256 | } | |
257 | ||
602adf40 | 258 | int ceph_debugfs_client_init(struct ceph_client *client) |
3d14c5d2 YS |
259 | { |
260 | return 0; | |
261 | } | |
262 | ||
263 | void ceph_debugfs_client_cleanup(struct ceph_client *client) | |
264 | { | |
265 | } | |
266 | ||
267 | #endif /* CONFIG_DEBUG_FS */ | |
268 | ||
269 | EXPORT_SYMBOL(ceph_debugfs_init); | |
270 | EXPORT_SYMBOL(ceph_debugfs_cleanup); |