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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#include "super.h"
16
17#ifdef CONFIG_DEBUG_FS
18
19#include "mds_client.h"
20
21static int mdsmap_show(struct seq_file *s, void *p)
22{
23 int i;
24 struct ceph_fs_client *fsc = s->private;
25
26 if (fsc->mdsc == NULL || fsc->mdsc->mdsmap == NULL)
27 return 0;
28 seq_printf(s, "epoch %d\n", fsc->mdsc->mdsmap->m_epoch);
29 seq_printf(s, "root %d\n", fsc->mdsc->mdsmap->m_root);
30 seq_printf(s, "session_timeout %d\n",
31 fsc->mdsc->mdsmap->m_session_timeout);
32 seq_printf(s, "session_autoclose %d\n",
33 fsc->mdsc->mdsmap->m_session_autoclose);
34 for (i = 0; i < fsc->mdsc->mdsmap->m_max_mds; i++) {
35 struct ceph_entity_addr *addr =
36 &fsc->mdsc->mdsmap->m_info[i].addr;
37 int state = fsc->mdsc->mdsmap->m_info[i].state;
38
39 seq_printf(s, "\tmds%d\t%s\t(%s)\n", i,
40 ceph_pr_addr(&addr->in_addr),
41 ceph_mds_state_name(state));
42 }
43 return 0;
44}
45
46/*
47 * mdsc debugfs
48 */
49static int mdsc_show(struct seq_file *s, void *p)
50{
51 struct ceph_fs_client *fsc = s->private;
52 struct ceph_mds_client *mdsc = fsc->mdsc;
53 struct ceph_mds_request *req;
54 struct rb_node *rp;
55 int pathlen;
56 u64 pathbase;
57 char *path;
58
59 mutex_lock(&mdsc->mutex);
60 for (rp = rb_first(&mdsc->request_tree); rp; rp = rb_next(rp)) {
61 req = rb_entry(rp, struct ceph_mds_request, r_node);
62
63 if (req->r_request && req->r_session)
64 seq_printf(s, "%lld\tmds%d\t", req->r_tid,
65 req->r_session->s_mds);
66 else if (!req->r_request)
67 seq_printf(s, "%lld\t(no request)\t", req->r_tid);
68 else
69 seq_printf(s, "%lld\t(no session)\t", req->r_tid);
70
71 seq_printf(s, "%s", ceph_mds_op_name(req->r_op));
72
73 if (req->r_got_unsafe)
74 seq_puts(s, "\t(unsafe)");
75 else
76 seq_puts(s, "\t");
77
78 if (req->r_inode) {
79 seq_printf(s, " #%llx", ceph_ino(req->r_inode));
80 } else if (req->r_dentry) {
81 path = ceph_mdsc_build_path(req->r_dentry, &pathlen,
82 &pathbase, 0);
83 if (IS_ERR(path))
84 path = NULL;
85 spin_lock(&req->r_dentry->d_lock);
86 seq_printf(s, " #%llx/%pd (%s)",
87 ceph_ino(d_inode(req->r_dentry->d_parent)),
88 req->r_dentry,
89 path ? path : "");
90 spin_unlock(&req->r_dentry->d_lock);
91 kfree(path);
92 } else if (req->r_path1) {
93 seq_printf(s, " #%llx/%s", req->r_ino1.ino,
94 req->r_path1);
95 } else {
96 seq_printf(s, " #%llx", req->r_ino1.ino);
97 }
98
99 if (req->r_old_dentry) {
100 path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen,
101 &pathbase, 0);
102 if (IS_ERR(path))
103 path = NULL;
104 spin_lock(&req->r_old_dentry->d_lock);
105 seq_printf(s, " #%llx/%pd (%s)",
106 req->r_old_dentry_dir ?
107 ceph_ino(req->r_old_dentry_dir) : 0,
108 req->r_old_dentry,
109 path ? path : "");
110 spin_unlock(&req->r_old_dentry->d_lock);
111 kfree(path);
112 } else if (req->r_path2) {
113 if (req->r_ino2.ino)
114 seq_printf(s, " #%llx/%s", req->r_ino2.ino,
115 req->r_path2);
116 else
117 seq_printf(s, " %s", req->r_path2);
118 }
119
120 seq_puts(s, "\n");
121 }
122 mutex_unlock(&mdsc->mutex);
123
124 return 0;
125}
126
127static int caps_show(struct seq_file *s, void *p)
128{
129 struct ceph_fs_client *fsc = s->private;
130 int total, avail, used, reserved, min;
131
132 ceph_reservation_status(fsc, &total, &avail, &used, &reserved, &min);
133 seq_printf(s, "total\t\t%d\n"
134 "avail\t\t%d\n"
135 "used\t\t%d\n"
136 "reserved\t%d\n"
137 "min\t%d\n",
138 total, avail, used, reserved, min);
139 return 0;
140}
141
142static int dentry_lru_show(struct seq_file *s, void *ptr)
143{
144 struct ceph_fs_client *fsc = s->private;
145 struct ceph_mds_client *mdsc = fsc->mdsc;
146 struct ceph_dentry_info *di;
147
148 spin_lock(&mdsc->dentry_lru_lock);
149 list_for_each_entry(di, &mdsc->dentry_lru, lru) {
150 struct dentry *dentry = di->dentry;
151 seq_printf(s, "%p %p\t%pd\n",
152 di, dentry, dentry);
153 }
154 spin_unlock(&mdsc->dentry_lru_lock);
155
156 return 0;
157}
158
159static int mds_sessions_show(struct seq_file *s, void *ptr)
160{
161 struct ceph_fs_client *fsc = s->private;
162 struct ceph_mds_client *mdsc = fsc->mdsc;
163 struct ceph_auth_client *ac = fsc->client->monc.auth;
164 struct ceph_options *opt = fsc->client->options;
165 int mds = -1;
166
167 mutex_lock(&mdsc->mutex);
168
169 /* The 'num' portion of an 'entity name' */
170 seq_printf(s, "global_id %llu\n", ac->global_id);
171
172 /* The -o name mount argument */
173 seq_printf(s, "name \"%s\"\n", opt->name ? opt->name : "");
174
175 /* The list of MDS session rank+state */
176 for (mds = 0; mds < mdsc->max_sessions; mds++) {
177 struct ceph_mds_session *session =
178 __ceph_lookup_mds_session(mdsc, mds);
179 if (!session) {
180 continue;
181 }
182 mutex_unlock(&mdsc->mutex);
183 seq_printf(s, "mds.%d %s\n",
184 session->s_mds,
185 ceph_session_state_name(session->s_state));
186
187 ceph_put_mds_session(session);
188 mutex_lock(&mdsc->mutex);
189 }
190 mutex_unlock(&mdsc->mutex);
191
192 return 0;
193}
194
195CEPH_DEFINE_SHOW_FUNC(mdsmap_show)
196CEPH_DEFINE_SHOW_FUNC(mdsc_show)
197CEPH_DEFINE_SHOW_FUNC(caps_show)
198CEPH_DEFINE_SHOW_FUNC(dentry_lru_show)
199CEPH_DEFINE_SHOW_FUNC(mds_sessions_show)
200
201
202/*
203 * debugfs
204 */
205static int congestion_kb_set(void *data, u64 val)
206{
207 struct ceph_fs_client *fsc = (struct ceph_fs_client *)data;
208
209 fsc->mount_options->congestion_kb = (int)val;
210 return 0;
211}
212
213static int congestion_kb_get(void *data, u64 *val)
214{
215 struct ceph_fs_client *fsc = (struct ceph_fs_client *)data;
216
217 *val = (u64)fsc->mount_options->congestion_kb;
218 return 0;
219}
220
221DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops, congestion_kb_get,
222 congestion_kb_set, "%llu\n");
223
224
225void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc)
226{
227 dout("ceph_fs_debugfs_cleanup\n");
228 debugfs_remove(fsc->debugfs_bdi);
229 debugfs_remove(fsc->debugfs_congestion_kb);
230 debugfs_remove(fsc->debugfs_mdsmap);
231 debugfs_remove(fsc->debugfs_mds_sessions);
232 debugfs_remove(fsc->debugfs_caps);
233 debugfs_remove(fsc->debugfs_mdsc);
234 debugfs_remove(fsc->debugfs_dentry_lru);
235}
236
237int ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
238{
239 char name[100];
240 int err = -ENOMEM;
241
242 dout("ceph_fs_debugfs_init\n");
243 BUG_ON(!fsc->client->debugfs_dir);
244 fsc->debugfs_congestion_kb =
245 debugfs_create_file("writeback_congestion_kb",
246 0600,
247 fsc->client->debugfs_dir,
248 fsc,
249 &congestion_kb_fops);
250 if (!fsc->debugfs_congestion_kb)
251 goto out;
252
253 snprintf(name, sizeof(name), "../../bdi/%s",
254 dev_name(fsc->backing_dev_info.dev));
255 fsc->debugfs_bdi =
256 debugfs_create_symlink("bdi",
257 fsc->client->debugfs_dir,
258 name);
259 if (!fsc->debugfs_bdi)
260 goto out;
261
262 fsc->debugfs_mdsmap = debugfs_create_file("mdsmap",
263 0600,
264 fsc->client->debugfs_dir,
265 fsc,
266 &mdsmap_show_fops);
267 if (!fsc->debugfs_mdsmap)
268 goto out;
269
270 fsc->debugfs_mds_sessions = debugfs_create_file("mds_sessions",
271 0600,
272 fsc->client->debugfs_dir,
273 fsc,
274 &mds_sessions_show_fops);
275 if (!fsc->debugfs_mds_sessions)
276 goto out;
277
278 fsc->debugfs_mdsc = debugfs_create_file("mdsc",
279 0600,
280 fsc->client->debugfs_dir,
281 fsc,
282 &mdsc_show_fops);
283 if (!fsc->debugfs_mdsc)
284 goto out;
285
286 fsc->debugfs_caps = debugfs_create_file("caps",
287 0400,
288 fsc->client->debugfs_dir,
289 fsc,
290 &caps_show_fops);
291 if (!fsc->debugfs_caps)
292 goto out;
293
294 fsc->debugfs_dentry_lru = debugfs_create_file("dentry_lru",
295 0600,
296 fsc->client->debugfs_dir,
297 fsc,
298 &dentry_lru_show_fops);
299 if (!fsc->debugfs_dentry_lru)
300 goto out;
301
302 return 0;
303
304out:
305 ceph_fs_debugfs_cleanup(fsc);
306 return err;
307}
308
309
310#else /* CONFIG_DEBUG_FS */
311
312int ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
313{
314 return 0;
315}
316
317void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc)
318{
319}
320
321#endif /* CONFIG_DEBUG_FS */
1// SPDX-License-Identifier: GPL-2.0
2#include <linux/ceph/ceph_debug.h>
3
4#include <linux/device.h>
5#include <linux/slab.h>
6#include <linux/module.h>
7#include <linux/ctype.h>
8#include <linux/debugfs.h>
9#include <linux/seq_file.h>
10
11#include <linux/ceph/libceph.h>
12#include <linux/ceph/mon_client.h>
13#include <linux/ceph/auth.h>
14#include <linux/ceph/debugfs.h>
15
16#include "super.h"
17
18#ifdef CONFIG_DEBUG_FS
19
20#include "mds_client.h"
21
22static int mdsmap_show(struct seq_file *s, void *p)
23{
24 int i;
25 struct ceph_fs_client *fsc = s->private;
26 struct ceph_mdsmap *mdsmap;
27
28 if (!fsc->mdsc || !fsc->mdsc->mdsmap)
29 return 0;
30 mdsmap = fsc->mdsc->mdsmap;
31 seq_printf(s, "epoch %d\n", mdsmap->m_epoch);
32 seq_printf(s, "root %d\n", mdsmap->m_root);
33 seq_printf(s, "max_mds %d\n", mdsmap->m_max_mds);
34 seq_printf(s, "session_timeout %d\n", mdsmap->m_session_timeout);
35 seq_printf(s, "session_autoclose %d\n", mdsmap->m_session_autoclose);
36 for (i = 0; i < mdsmap->m_num_mds; i++) {
37 struct ceph_entity_addr *addr = &mdsmap->m_info[i].addr;
38 int state = mdsmap->m_info[i].state;
39 seq_printf(s, "\tmds%d\t%s\t(%s)\n", i,
40 ceph_pr_addr(addr),
41 ceph_mds_state_name(state));
42 }
43 return 0;
44}
45
46/*
47 * mdsc debugfs
48 */
49static int mdsc_show(struct seq_file *s, void *p)
50{
51 struct ceph_fs_client *fsc = s->private;
52 struct ceph_mds_client *mdsc = fsc->mdsc;
53 struct ceph_mds_request *req;
54 struct rb_node *rp;
55 int pathlen = 0;
56 u64 pathbase;
57 char *path;
58
59 mutex_lock(&mdsc->mutex);
60 for (rp = rb_first(&mdsc->request_tree); rp; rp = rb_next(rp)) {
61 req = rb_entry(rp, struct ceph_mds_request, r_node);
62
63 if (req->r_request && req->r_session)
64 seq_printf(s, "%lld\tmds%d\t", req->r_tid,
65 req->r_session->s_mds);
66 else if (!req->r_request)
67 seq_printf(s, "%lld\t(no request)\t", req->r_tid);
68 else
69 seq_printf(s, "%lld\t(no session)\t", req->r_tid);
70
71 seq_printf(s, "%s", ceph_mds_op_name(req->r_op));
72
73 if (test_bit(CEPH_MDS_R_GOT_UNSAFE, &req->r_req_flags))
74 seq_puts(s, "\t(unsafe)");
75 else
76 seq_puts(s, "\t");
77
78 if (req->r_inode) {
79 seq_printf(s, " #%llx", ceph_ino(req->r_inode));
80 } else if (req->r_dentry) {
81 path = ceph_mdsc_build_path(req->r_dentry, &pathlen,
82 &pathbase, 0);
83 if (IS_ERR(path))
84 path = NULL;
85 spin_lock(&req->r_dentry->d_lock);
86 seq_printf(s, " #%llx/%pd (%s)",
87 ceph_ino(d_inode(req->r_dentry->d_parent)),
88 req->r_dentry,
89 path ? path : "");
90 spin_unlock(&req->r_dentry->d_lock);
91 ceph_mdsc_free_path(path, pathlen);
92 } else if (req->r_path1) {
93 seq_printf(s, " #%llx/%s", req->r_ino1.ino,
94 req->r_path1);
95 } else {
96 seq_printf(s, " #%llx", req->r_ino1.ino);
97 }
98
99 if (req->r_old_dentry) {
100 path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen,
101 &pathbase, 0);
102 if (IS_ERR(path))
103 path = NULL;
104 spin_lock(&req->r_old_dentry->d_lock);
105 seq_printf(s, " #%llx/%pd (%s)",
106 req->r_old_dentry_dir ?
107 ceph_ino(req->r_old_dentry_dir) : 0,
108 req->r_old_dentry,
109 path ? path : "");
110 spin_unlock(&req->r_old_dentry->d_lock);
111 ceph_mdsc_free_path(path, pathlen);
112 } else if (req->r_path2 && req->r_op != CEPH_MDS_OP_SYMLINK) {
113 if (req->r_ino2.ino)
114 seq_printf(s, " #%llx/%s", req->r_ino2.ino,
115 req->r_path2);
116 else
117 seq_printf(s, " %s", req->r_path2);
118 }
119
120 seq_puts(s, "\n");
121 }
122 mutex_unlock(&mdsc->mutex);
123
124 return 0;
125}
126
127static int caps_show_cb(struct inode *inode, struct ceph_cap *cap, void *p)
128{
129 struct seq_file *s = p;
130
131 seq_printf(s, "0x%-17lx%-17s%-17s\n", inode->i_ino,
132 ceph_cap_string(cap->issued),
133 ceph_cap_string(cap->implemented));
134 return 0;
135}
136
137static int caps_show(struct seq_file *s, void *p)
138{
139 struct ceph_fs_client *fsc = s->private;
140 struct ceph_mds_client *mdsc = fsc->mdsc;
141 int total, avail, used, reserved, min, i;
142
143 ceph_reservation_status(fsc, &total, &avail, &used, &reserved, &min);
144 seq_printf(s, "total\t\t%d\n"
145 "avail\t\t%d\n"
146 "used\t\t%d\n"
147 "reserved\t%d\n"
148 "min\t\t%d\n\n",
149 total, avail, used, reserved, min);
150 seq_printf(s, "ino issued implemented\n");
151 seq_printf(s, "-----------------------------------------------\n");
152
153 mutex_lock(&mdsc->mutex);
154 for (i = 0; i < mdsc->max_sessions; i++) {
155 struct ceph_mds_session *session;
156
157 session = __ceph_lookup_mds_session(mdsc, i);
158 if (!session)
159 continue;
160 mutex_unlock(&mdsc->mutex);
161 mutex_lock(&session->s_mutex);
162 ceph_iterate_session_caps(session, caps_show_cb, s);
163 mutex_unlock(&session->s_mutex);
164 ceph_put_mds_session(session);
165 mutex_lock(&mdsc->mutex);
166 }
167 mutex_unlock(&mdsc->mutex);
168
169 return 0;
170}
171
172static int mds_sessions_show(struct seq_file *s, void *ptr)
173{
174 struct ceph_fs_client *fsc = s->private;
175 struct ceph_mds_client *mdsc = fsc->mdsc;
176 struct ceph_auth_client *ac = fsc->client->monc.auth;
177 struct ceph_options *opt = fsc->client->options;
178 int mds = -1;
179
180 mutex_lock(&mdsc->mutex);
181
182 /* The 'num' portion of an 'entity name' */
183 seq_printf(s, "global_id %llu\n", ac->global_id);
184
185 /* The -o name mount argument */
186 seq_printf(s, "name \"%s\"\n", opt->name ? opt->name : "");
187
188 /* The list of MDS session rank+state */
189 for (mds = 0; mds < mdsc->max_sessions; mds++) {
190 struct ceph_mds_session *session =
191 __ceph_lookup_mds_session(mdsc, mds);
192 if (!session) {
193 continue;
194 }
195 mutex_unlock(&mdsc->mutex);
196 seq_printf(s, "mds.%d %s\n",
197 session->s_mds,
198 ceph_session_state_name(session->s_state));
199
200 ceph_put_mds_session(session);
201 mutex_lock(&mdsc->mutex);
202 }
203 mutex_unlock(&mdsc->mutex);
204
205 return 0;
206}
207
208CEPH_DEFINE_SHOW_FUNC(mdsmap_show)
209CEPH_DEFINE_SHOW_FUNC(mdsc_show)
210CEPH_DEFINE_SHOW_FUNC(caps_show)
211CEPH_DEFINE_SHOW_FUNC(mds_sessions_show)
212
213
214/*
215 * debugfs
216 */
217static int congestion_kb_set(void *data, u64 val)
218{
219 struct ceph_fs_client *fsc = (struct ceph_fs_client *)data;
220
221 fsc->mount_options->congestion_kb = (int)val;
222 return 0;
223}
224
225static int congestion_kb_get(void *data, u64 *val)
226{
227 struct ceph_fs_client *fsc = (struct ceph_fs_client *)data;
228
229 *val = (u64)fsc->mount_options->congestion_kb;
230 return 0;
231}
232
233DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops, congestion_kb_get,
234 congestion_kb_set, "%llu\n");
235
236
237void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc)
238{
239 dout("ceph_fs_debugfs_cleanup\n");
240 debugfs_remove(fsc->debugfs_bdi);
241 debugfs_remove(fsc->debugfs_congestion_kb);
242 debugfs_remove(fsc->debugfs_mdsmap);
243 debugfs_remove(fsc->debugfs_mds_sessions);
244 debugfs_remove(fsc->debugfs_caps);
245 debugfs_remove(fsc->debugfs_mdsc);
246}
247
248void ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
249{
250 char name[100];
251
252 dout("ceph_fs_debugfs_init\n");
253 fsc->debugfs_congestion_kb =
254 debugfs_create_file("writeback_congestion_kb",
255 0600,
256 fsc->client->debugfs_dir,
257 fsc,
258 &congestion_kb_fops);
259
260 snprintf(name, sizeof(name), "../../bdi/%s",
261 dev_name(fsc->sb->s_bdi->dev));
262 fsc->debugfs_bdi =
263 debugfs_create_symlink("bdi",
264 fsc->client->debugfs_dir,
265 name);
266
267 fsc->debugfs_mdsmap = debugfs_create_file("mdsmap",
268 0400,
269 fsc->client->debugfs_dir,
270 fsc,
271 &mdsmap_show_fops);
272
273 fsc->debugfs_mds_sessions = debugfs_create_file("mds_sessions",
274 0400,
275 fsc->client->debugfs_dir,
276 fsc,
277 &mds_sessions_show_fops);
278
279 fsc->debugfs_mdsc = debugfs_create_file("mdsc",
280 0400,
281 fsc->client->debugfs_dir,
282 fsc,
283 &mdsc_show_fops);
284
285 fsc->debugfs_caps = debugfs_create_file("caps",
286 0400,
287 fsc->client->debugfs_dir,
288 fsc,
289 &caps_show_fops);
290}
291
292
293#else /* CONFIG_DEBUG_FS */
294
295void ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
296{
297}
298
299void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc)
300{
301}
302
303#endif /* CONFIG_DEBUG_FS */