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GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / fs / ceph / debugfs.c
blob6fd8b20a86112c367c788a20c2f134108acc40e8
1 #include "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 "super.h"
11 #include "mds_client.h"
12 #include "mon_client.h"
13 #include "auth.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 * .../mdsmap - current mdsmap
23 * .../monmap - current monmap
24 * .../osdc - active osd requests
25 * .../mdsc - active mds requests
26 * .../monc - mon client state
27 * .../dentry_lru - dump contents of dentry lru
28 * .../caps - expose cap (reservation) stats
29 * .../bdi - symlink to ../../bdi/something
30 */
31
32 static struct dentry *ceph_debugfs_dir;
33
34 static int monmap_show(struct seq_file *s, void *p)
35 {
36 int i;
37 struct ceph_client *client = s->private;
38
39 if (client->monc.monmap == NULL)
40 return 0;
41
42 seq_printf(s, "epoch %d\n", client->monc.monmap->epoch);
43 for (i = 0; i < client->monc.monmap->num_mon; i++) {
44 struct ceph_entity_inst *inst =
45 &client->monc.monmap->mon_inst[i];
46
47 seq_printf(s, "\t%s%lld\t%s\n",
48 ENTITY_NAME(inst->name),
49 pr_addr(&inst->addr.in_addr));
50 }
51 return 0;
52 }
53
54 static int mdsmap_show(struct seq_file *s, void *p)
55 {
56 int i;
57 struct ceph_client *client = s->private;
58
59 if (client->mdsc.mdsmap == NULL)
60 return 0;
61 seq_printf(s, "epoch %d\n", client->mdsc.mdsmap->m_epoch);
62 seq_printf(s, "root %d\n", client->mdsc.mdsmap->m_root);
63 seq_printf(s, "session_timeout %d\n",
64 client->mdsc.mdsmap->m_session_timeout);
65 seq_printf(s, "session_autoclose %d\n",
66 client->mdsc.mdsmap->m_session_autoclose);
67 for (i = 0; i < client->mdsc.mdsmap->m_max_mds; i++) {
68 struct ceph_entity_addr *addr =
69 &client->mdsc.mdsmap->m_info[i].addr;
70 int state = client->mdsc.mdsmap->m_info[i].state;
71
72 seq_printf(s, "\tmds%d\t%s\t(%s)\n", i, pr_addr(&addr->in_addr),
73 ceph_mds_state_name(state));
74 }
75 return 0;
76 }
77
78 static int osdmap_show(struct seq_file *s, void *p)
79 {
80 int i;
81 struct ceph_client *client = s->private;
82 struct rb_node *n;
83
84 if (client->osdc.osdmap == NULL)
85 return 0;
86 seq_printf(s, "epoch %d\n", client->osdc.osdmap->epoch);
87 seq_printf(s, "flags%s%s\n",
88 (client->osdc.osdmap->flags & CEPH_OSDMAP_NEARFULL) ?
89 " NEARFULL" : "",
90 (client->osdc.osdmap->flags & CEPH_OSDMAP_FULL) ?
91 " FULL" : "");
92 for (n = rb_first(&client->osdc.osdmap->pg_pools); n; n = rb_next(n)) {
93 struct ceph_pg_pool_info *pool =
94 rb_entry(n, struct ceph_pg_pool_info, node);
95 seq_printf(s, "pg_pool %d pg_num %d / %d, lpg_num %d / %d\n",
96 pool->id, pool->v.pg_num, pool->pg_num_mask,
97 pool->v.lpg_num, pool->lpg_num_mask);
98 }
99 for (i = 0; i < client->osdc.osdmap->max_osd; i++) {
100 struct ceph_entity_addr *addr =
101 &client->osdc.osdmap->osd_addr[i];
102 int state = client->osdc.osdmap->osd_state[i];
103 char sb[64];
104
105 seq_printf(s, "\tosd%d\t%s\t%3d%%\t(%s)\n",
106 i, pr_addr(&addr->in_addr),
107 ((client->osdc.osdmap->osd_weight[i]*100) >> 16),
108 ceph_osdmap_state_str(sb, sizeof(sb), state));
109 }
110 return 0;
111 }
112
113 static int monc_show(struct seq_file *s, void *p)
114 {
115 struct ceph_client *client = s->private;
116 struct ceph_mon_generic_request *req;
117 struct ceph_mon_client *monc = &client->monc;
118 struct rb_node *rp;
119
120 mutex_lock(&monc->mutex);
121
122 if (monc->have_mdsmap)
123 seq_printf(s, "have mdsmap %u\n", (unsigned)monc->have_mdsmap);
124 if (monc->have_osdmap)
125 seq_printf(s, "have osdmap %u\n", (unsigned)monc->have_osdmap);
126 if (monc->want_next_osdmap)
127 seq_printf(s, "want next osdmap\n");
128
129 for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) {
130 __u16 op;
131 req = rb_entry(rp, struct ceph_mon_generic_request, node);
132 op = le16_to_cpu(req->request->hdr.type);
133 if (op == CEPH_MSG_STATFS)
134 seq_printf(s, "%lld statfs\n", req->tid);
135 else
136 seq_printf(s, "%lld unknown\n", req->tid);
137 }
138
139 mutex_unlock(&monc->mutex);
140 return 0;
141 }
142
143 static int mdsc_show(struct seq_file *s, void *p)
144 {
145 struct ceph_client *client = s->private;
146 struct ceph_mds_client *mdsc = &client->mdsc;
147 struct ceph_mds_request *req;
148 struct rb_node *rp;
149 int pathlen;
150 u64 pathbase;
151 char *path;
152
153 mutex_lock(&mdsc->mutex);
154 for (rp = rb_first(&mdsc->request_tree); rp; rp = rb_next(rp)) {
155 req = rb_entry(rp, struct ceph_mds_request, r_node);
156
157 if (req->r_request)
158 seq_printf(s, "%lld\tmds%d\t", req->r_tid, req->r_mds);
159 else
160 seq_printf(s, "%lld\t(no request)\t", req->r_tid);
161
162 seq_printf(s, "%s", ceph_mds_op_name(req->r_op));
163
164 if (req->r_got_unsafe)
165 seq_printf(s, "\t(unsafe)");
166 else
167 seq_printf(s, "\t");
168
169 if (req->r_inode) {
170 seq_printf(s, " #%llx", ceph_ino(req->r_inode));
171 } else if (req->r_dentry) {
172 path = ceph_mdsc_build_path(req->r_dentry, &pathlen,
173 &pathbase, 0);
174 if (IS_ERR(path))
175 path = NULL;
176 spin_lock(&req->r_dentry->d_lock);
177 seq_printf(s, " #%llx/%.*s (%s)",
178 ceph_ino(req->r_dentry->d_parent->d_inode),
179 req->r_dentry->d_name.len,
180 req->r_dentry->d_name.name,
181 path ? path : "");
182 spin_unlock(&req->r_dentry->d_lock);
183 kfree(path);
184 } else if (req->r_path1) {
185 seq_printf(s, " #%llx/%s", req->r_ino1.ino,
186 req->r_path1);
187 }
188
189 if (req->r_old_dentry) {
190 path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen,
191 &pathbase, 0);
192 if (IS_ERR(path))
193 path = NULL;
194 spin_lock(&req->r_old_dentry->d_lock);
195 seq_printf(s, " #%llx/%.*s (%s)",
196 ceph_ino(req->r_old_dentry->d_parent->d_inode),
197 req->r_old_dentry->d_name.len,
198 req->r_old_dentry->d_name.name,
199 path ? path : "");
200 spin_unlock(&req->r_old_dentry->d_lock);
201 kfree(path);
202 } else if (req->r_path2) {
203 if (req->r_ino2.ino)
204 seq_printf(s, " #%llx/%s", req->r_ino2.ino,
205 req->r_path2);
206 else
207 seq_printf(s, " %s", req->r_path2);
208 }
209
210 seq_printf(s, "\n");
211 }
212 mutex_unlock(&mdsc->mutex);
213
214 return 0;
215 }
216
217 static int osdc_show(struct seq_file *s, void *pp)
218 {
219 struct ceph_client *client = s->private;
220 struct ceph_osd_client *osdc = &client->osdc;
221 struct rb_node *p;
222
223 mutex_lock(&osdc->request_mutex);
224 for (p = rb_first(&osdc->requests); p; p = rb_next(p)) {
225 struct ceph_osd_request *req;
226 struct ceph_osd_request_head *head;
227 struct ceph_osd_op *op;
228 int num_ops;
229 int opcode, olen;
230 int i;
231
232 req = rb_entry(p, struct ceph_osd_request, r_node);
233
234 seq_printf(s, "%lld\tosd%d\t%d.%x\t", req->r_tid,
235 req->r_osd ? req->r_osd->o_osd : -1,
236 le32_to_cpu(req->r_pgid.pool),
237 le16_to_cpu(req->r_pgid.ps));
238
239 head = req->r_request->front.iov_base;
240 op = (void *)(head + 1);
241
242 num_ops = le16_to_cpu(head->num_ops);
243 olen = le32_to_cpu(head->object_len);
244 seq_printf(s, "%.*s", olen,
245 (const char *)(head->ops + num_ops));
246
247 if (req->r_reassert_version.epoch)
248 seq_printf(s, "\t%u'%llu",
249 (unsigned)le32_to_cpu(req->r_reassert_version.epoch),
250 le64_to_cpu(req->r_reassert_version.version));
251 else
252 seq_printf(s, "\t");
253
254 for (i = 0; i < num_ops; i++) {
255 opcode = le16_to_cpu(op->op);
256 seq_printf(s, "\t%s", ceph_osd_op_name(opcode));
257 op++;
258 }
259
260 seq_printf(s, "\n");
261 }
262 mutex_unlock(&osdc->request_mutex);
263 return 0;
264 }
265
266 static int caps_show(struct seq_file *s, void *p)
267 {
268 struct ceph_client *client = s->private;
269 int total, avail, used, reserved, min;
270
271 ceph_reservation_status(client, &total, &avail, &used, &reserved, &min);
272 seq_printf(s, "total\t\t%d\n"
273 "avail\t\t%d\n"
274 "used\t\t%d\n"
275 "reserved\t%d\n"
276 "min\t%d\n",
277 total, avail, used, reserved, min);
278 return 0;
279 }
280
281 static int dentry_lru_show(struct seq_file *s, void *ptr)
282 {
283 struct ceph_client *client = s->private;
284 struct ceph_mds_client *mdsc = &client->mdsc;
285 struct ceph_dentry_info *di;
286
287 spin_lock(&mdsc->dentry_lru_lock);
288 list_for_each_entry(di, &mdsc->dentry_lru, lru) {
289 struct dentry *dentry = di->dentry;
290 seq_printf(s, "%p %p\t%.*s\n",
291 di, dentry, dentry->d_name.len, dentry->d_name.name);
292 }
293 spin_unlock(&mdsc->dentry_lru_lock);
294
295 return 0;
296 }
297
298 #define DEFINE_SHOW_FUNC(name) \
299 static int name##_open(struct inode *inode, struct file *file) \
300 { \
301 struct seq_file *sf; \
302 int ret; \
303 \
304 ret = single_open(file, name, NULL); \
305 sf = file->private_data; \
306 sf->private = inode->i_private; \
307 return ret; \
308 } \
309 \
310 static const struct file_operations name##_fops = { \
311 .open = name##_open, \
312 .read = seq_read, \
313 .llseek = seq_lseek, \
314 .release = single_release, \
315 };
316
317 DEFINE_SHOW_FUNC(monmap_show)
318 DEFINE_SHOW_FUNC(mdsmap_show)
319 DEFINE_SHOW_FUNC(osdmap_show)
320 DEFINE_SHOW_FUNC(monc_show)
321 DEFINE_SHOW_FUNC(mdsc_show)
322 DEFINE_SHOW_FUNC(osdc_show)
323 DEFINE_SHOW_FUNC(dentry_lru_show)
324 DEFINE_SHOW_FUNC(caps_show)
325
326 static int congestion_kb_set(void *data, u64 val)
327 {
328 struct ceph_client *client = (struct ceph_client *)data;
329
330 if (client)
331 client->mount_args->congestion_kb = (int)val;
332
333 return 0;
334 }
335
336 static int congestion_kb_get(void *data, u64 *val)
337 {
338 struct ceph_client *client = (struct ceph_client *)data;
339
340 if (client)
341 *val = (u64)client->mount_args->congestion_kb;
342
343 return 0;
344 }
345
346
347 DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops, congestion_kb_get,
348 congestion_kb_set, "%llu\n");
349
350 int __init ceph_debugfs_init(void)
351 {
352 ceph_debugfs_dir = debugfs_create_dir("ceph", NULL);
353 if (!ceph_debugfs_dir)
354 return -ENOMEM;
355 return 0;
356 }
357
358 void ceph_debugfs_cleanup(void)
359 {
360 debugfs_remove(ceph_debugfs_dir);
361 }
362
363 int ceph_debugfs_client_init(struct ceph_client *client)
364 {
365 int ret = 0;
366 char name[80];
367
368 snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid,
369 client->monc.auth->global_id);
370
371 client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);
372 if (!client->debugfs_dir)
373 goto out;
374
375 client->monc.debugfs_file = debugfs_create_file("monc",
376 0600,
377 client->debugfs_dir,
378 client,
379 &monc_show_fops);
380 if (!client->monc.debugfs_file)
381 goto out;
382
383 client->mdsc.debugfs_file = debugfs_create_file("mdsc",
384 0600,
385 client->debugfs_dir,
386 client,
387 &mdsc_show_fops);
388 if (!client->mdsc.debugfs_file)
389 goto out;
390
391 client->osdc.debugfs_file = debugfs_create_file("osdc",
392 0600,
393 client->debugfs_dir,
394 client,
395 &osdc_show_fops);
396 if (!client->osdc.debugfs_file)
397 goto out;
398
399 client->debugfs_monmap = debugfs_create_file("monmap",
400 0600,
401 client->debugfs_dir,
402 client,
403 &monmap_show_fops);
404 if (!client->debugfs_monmap)
405 goto out;
406
407 client->debugfs_mdsmap = debugfs_create_file("mdsmap",
408 0600,
409 client->debugfs_dir,
410 client,
411 &mdsmap_show_fops);
412 if (!client->debugfs_mdsmap)
413 goto out;
414
415 client->debugfs_osdmap = debugfs_create_file("osdmap",
416 0600,
417 client->debugfs_dir,
418 client,
419 &osdmap_show_fops);
420 if (!client->debugfs_osdmap)
421 goto out;
422
423 client->debugfs_dentry_lru = debugfs_create_file("dentry_lru",
424 0600,
425 client->debugfs_dir,
426 client,
427 &dentry_lru_show_fops);
428 if (!client->debugfs_dentry_lru)
429 goto out;
430
431 client->debugfs_caps = debugfs_create_file("caps",
432 0400,
433 client->debugfs_dir,
434 client,
435 &caps_show_fops);
436 if (!client->debugfs_caps)
437 goto out;
438
439 client->debugfs_congestion_kb =
440 debugfs_create_file("writeback_congestion_kb",
441 0600,
442 client->debugfs_dir,
443 client,
444 &congestion_kb_fops);
445 if (!client->debugfs_congestion_kb)
446 goto out;
447
448 sprintf(name, "../../bdi/%s", dev_name(client->sb->s_bdi->dev));
449 client->debugfs_bdi = debugfs_create_symlink("bdi", client->debugfs_dir,
450 name);
451
452 return 0;
453
454 out:
455 ceph_debugfs_client_cleanup(client);
456 return ret;
457 }
458
459 void ceph_debugfs_client_cleanup(struct ceph_client *client)
460 {
461 debugfs_remove(client->debugfs_bdi);
462 debugfs_remove(client->debugfs_caps);
463 debugfs_remove(client->debugfs_dentry_lru);
464 debugfs_remove(client->debugfs_osdmap);
465 debugfs_remove(client->debugfs_mdsmap);
466 debugfs_remove(client->debugfs_monmap);
467 debugfs_remove(client->osdc.debugfs_file);
468 debugfs_remove(client->mdsc.debugfs_file);
469 debugfs_remove(client->monc.debugfs_file);
470 debugfs_remove(client->debugfs_congestion_kb);
471 debugfs_remove(client->debugfs_dir);
472 }
473
474 #else /* CONFIG_DEBUG_FS */
475
476 int __init ceph_debugfs_init(void)
477 {
478 return 0;
479 }
480
481 void ceph_debugfs_cleanup(void)
482 {
483 }
484
485 int ceph_debugfs_client_init(struct ceph_client *client)
486 {
487 return 0;
488 }
489
490 void ceph_debugfs_client_cleanup(struct ceph_client *client)
491 {
492 }
493
494 #endif /* CONFIG_DEBUG_FS */
Tomato firmware and modifications.