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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_printf(s, "\t(unsafe)");
75 else
76 seq_printf(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/%.*s (%s)",
87 ceph_ino(req->r_dentry->d_parent->d_inode),
88 req->r_dentry->d_name.len,
89 req->r_dentry->d_name.name,
90 path ? path : "");
91 spin_unlock(&req->r_dentry->d_lock);
92 kfree(path);
93 } else if (req->r_path1) {
94 seq_printf(s, " #%llx/%s", req->r_ino1.ino,
95 req->r_path1);
96 } else {
97 seq_printf(s, " #%llx", req->r_ino1.ino);
98 }
99
100 if (req->r_old_dentry) {
101 path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen,
102 &pathbase, 0);
103 if (IS_ERR(path))
104 path = NULL;
105 spin_lock(&req->r_old_dentry->d_lock);
106 seq_printf(s, " #%llx/%.*s (%s)",
107 req->r_old_dentry_dir ?
108 ceph_ino(req->r_old_dentry_dir) : 0,
109 req->r_old_dentry->d_name.len,
110 req->r_old_dentry->d_name.name,
111 path ? path : "");
112 spin_unlock(&req->r_old_dentry->d_lock);
113 kfree(path);
114 } else if (req->r_path2) {
115 if (req->r_ino2.ino)
116 seq_printf(s, " #%llx/%s", req->r_ino2.ino,
117 req->r_path2);
118 else
119 seq_printf(s, " %s", req->r_path2);
120 }
121
122 seq_printf(s, "\n");
123 }
124 mutex_unlock(&mdsc->mutex);
125
126 return 0;
127}
128
129static int caps_show(struct seq_file *s, void *p)
130{
131 struct ceph_fs_client *fsc = s->private;
132 int total, avail, used, reserved, min;
133
134 ceph_reservation_status(fsc, &total, &avail, &used, &reserved, &min);
135 seq_printf(s, "total\t\t%d\n"
136 "avail\t\t%d\n"
137 "used\t\t%d\n"
138 "reserved\t%d\n"
139 "min\t%d\n",
140 total, avail, used, reserved, min);
141 return 0;
142}
143
144static int dentry_lru_show(struct seq_file *s, void *ptr)
145{
146 struct ceph_fs_client *fsc = s->private;
147 struct ceph_mds_client *mdsc = fsc->mdsc;
148 struct ceph_dentry_info *di;
149
150 spin_lock(&mdsc->dentry_lru_lock);
151 list_for_each_entry(di, &mdsc->dentry_lru, lru) {
152 struct dentry *dentry = di->dentry;
153 seq_printf(s, "%p %p\t%.*s\n",
154 di, dentry, dentry->d_name.len, dentry->d_name.name);
155 }
156 spin_unlock(&mdsc->dentry_lru_lock);
157
158 return 0;
159}
160
161CEPH_DEFINE_SHOW_FUNC(mdsmap_show)
162CEPH_DEFINE_SHOW_FUNC(mdsc_show)
163CEPH_DEFINE_SHOW_FUNC(caps_show)
164CEPH_DEFINE_SHOW_FUNC(dentry_lru_show)
165
166
167/*
168 * debugfs
169 */
170static int congestion_kb_set(void *data, u64 val)
171{
172 struct ceph_fs_client *fsc = (struct ceph_fs_client *)data;
173
174 fsc->mount_options->congestion_kb = (int)val;
175 return 0;
176}
177
178static int congestion_kb_get(void *data, u64 *val)
179{
180 struct ceph_fs_client *fsc = (struct ceph_fs_client *)data;
181
182 *val = (u64)fsc->mount_options->congestion_kb;
183 return 0;
184}
185
186DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops, congestion_kb_get,
187 congestion_kb_set, "%llu\n");
188
189
190void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc)
191{
192 dout("ceph_fs_debugfs_cleanup\n");
193 debugfs_remove(fsc->debugfs_bdi);
194 debugfs_remove(fsc->debugfs_congestion_kb);
195 debugfs_remove(fsc->debugfs_mdsmap);
196 debugfs_remove(fsc->debugfs_caps);
197 debugfs_remove(fsc->debugfs_mdsc);
198 debugfs_remove(fsc->debugfs_dentry_lru);
199}
200
201int ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
202{
203 char name[100];
204 int err = -ENOMEM;
205
206 dout("ceph_fs_debugfs_init\n");
207 BUG_ON(!fsc->client->debugfs_dir);
208 fsc->debugfs_congestion_kb =
209 debugfs_create_file("writeback_congestion_kb",
210 0600,
211 fsc->client->debugfs_dir,
212 fsc,
213 &congestion_kb_fops);
214 if (!fsc->debugfs_congestion_kb)
215 goto out;
216
217 snprintf(name, sizeof(name), "../../bdi/%s",
218 dev_name(fsc->backing_dev_info.dev));
219 fsc->debugfs_bdi =
220 debugfs_create_symlink("bdi",
221 fsc->client->debugfs_dir,
222 name);
223 if (!fsc->debugfs_bdi)
224 goto out;
225
226 fsc->debugfs_mdsmap = debugfs_create_file("mdsmap",
227 0600,
228 fsc->client->debugfs_dir,
229 fsc,
230 &mdsmap_show_fops);
231 if (!fsc->debugfs_mdsmap)
232 goto out;
233
234 fsc->debugfs_mdsc = debugfs_create_file("mdsc",
235 0600,
236 fsc->client->debugfs_dir,
237 fsc,
238 &mdsc_show_fops);
239 if (!fsc->debugfs_mdsc)
240 goto out;
241
242 fsc->debugfs_caps = debugfs_create_file("caps",
243 0400,
244 fsc->client->debugfs_dir,
245 fsc,
246 &caps_show_fops);
247 if (!fsc->debugfs_caps)
248 goto out;
249
250 fsc->debugfs_dentry_lru = debugfs_create_file("dentry_lru",
251 0600,
252 fsc->client->debugfs_dir,
253 fsc,
254 &dentry_lru_show_fops);
255 if (!fsc->debugfs_dentry_lru)
256 goto out;
257
258 return 0;
259
260out:
261 ceph_fs_debugfs_cleanup(fsc);
262 return err;
263}
264
265
266#else /* CONFIG_DEBUG_FS */
267
268int ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
269{
270 return 0;
271}
272
273void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc)
274{
275}
276
277#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#include <linux/math64.h>
11#include <linux/ktime.h>
12
13#include <linux/ceph/libceph.h>
14#include <linux/ceph/mon_client.h>
15#include <linux/ceph/auth.h>
16#include <linux/ceph/debugfs.h>
17
18#include "super.h"
19
20#ifdef CONFIG_DEBUG_FS
21
22#include "mds_client.h"
23#include "metric.h"
24
25static int mdsmap_show(struct seq_file *s, void *p)
26{
27 int i;
28 struct ceph_fs_client *fsc = s->private;
29 struct ceph_mdsmap *mdsmap;
30
31 if (!fsc->mdsc || !fsc->mdsc->mdsmap)
32 return 0;
33 mdsmap = fsc->mdsc->mdsmap;
34 seq_printf(s, "epoch %d\n", mdsmap->m_epoch);
35 seq_printf(s, "root %d\n", mdsmap->m_root);
36 seq_printf(s, "max_mds %d\n", mdsmap->m_max_mds);
37 seq_printf(s, "session_timeout %d\n", mdsmap->m_session_timeout);
38 seq_printf(s, "session_autoclose %d\n", mdsmap->m_session_autoclose);
39 for (i = 0; i < mdsmap->possible_max_rank; i++) {
40 struct ceph_entity_addr *addr = &mdsmap->m_info[i].addr;
41 int state = mdsmap->m_info[i].state;
42 seq_printf(s, "\tmds%d\t%s\t(%s)\n", i,
43 ceph_pr_addr(addr),
44 ceph_mds_state_name(state));
45 }
46 return 0;
47}
48
49/*
50 * mdsc debugfs
51 */
52static int mdsc_show(struct seq_file *s, void *p)
53{
54 struct ceph_fs_client *fsc = s->private;
55 struct ceph_mds_client *mdsc = fsc->mdsc;
56 struct ceph_mds_request *req;
57 struct rb_node *rp;
58 int pathlen = 0;
59 u64 pathbase;
60 char *path;
61
62 mutex_lock(&mdsc->mutex);
63 for (rp = rb_first(&mdsc->request_tree); rp; rp = rb_next(rp)) {
64 req = rb_entry(rp, struct ceph_mds_request, r_node);
65
66 if (req->r_request && req->r_session)
67 seq_printf(s, "%lld\tmds%d\t", req->r_tid,
68 req->r_session->s_mds);
69 else if (!req->r_request)
70 seq_printf(s, "%lld\t(no request)\t", req->r_tid);
71 else
72 seq_printf(s, "%lld\t(no session)\t", req->r_tid);
73
74 seq_printf(s, "%s", ceph_mds_op_name(req->r_op));
75
76 if (test_bit(CEPH_MDS_R_GOT_UNSAFE, &req->r_req_flags))
77 seq_puts(s, "\t(unsafe)");
78 else
79 seq_puts(s, "\t");
80
81 if (req->r_inode) {
82 seq_printf(s, " #%llx", ceph_ino(req->r_inode));
83 } else if (req->r_dentry) {
84 path = ceph_mdsc_build_path(req->r_dentry, &pathlen,
85 &pathbase, 0);
86 if (IS_ERR(path))
87 path = NULL;
88 spin_lock(&req->r_dentry->d_lock);
89 seq_printf(s, " #%llx/%pd (%s)",
90 ceph_ino(d_inode(req->r_dentry->d_parent)),
91 req->r_dentry,
92 path ? path : "");
93 spin_unlock(&req->r_dentry->d_lock);
94 ceph_mdsc_free_path(path, pathlen);
95 } else if (req->r_path1) {
96 seq_printf(s, " #%llx/%s", req->r_ino1.ino,
97 req->r_path1);
98 } else {
99 seq_printf(s, " #%llx", req->r_ino1.ino);
100 }
101
102 if (req->r_old_dentry) {
103 path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen,
104 &pathbase, 0);
105 if (IS_ERR(path))
106 path = NULL;
107 spin_lock(&req->r_old_dentry->d_lock);
108 seq_printf(s, " #%llx/%pd (%s)",
109 req->r_old_dentry_dir ?
110 ceph_ino(req->r_old_dentry_dir) : 0,
111 req->r_old_dentry,
112 path ? path : "");
113 spin_unlock(&req->r_old_dentry->d_lock);
114 ceph_mdsc_free_path(path, pathlen);
115 } else if (req->r_path2 && req->r_op != CEPH_MDS_OP_SYMLINK) {
116 if (req->r_ino2.ino)
117 seq_printf(s, " #%llx/%s", req->r_ino2.ino,
118 req->r_path2);
119 else
120 seq_printf(s, " %s", req->r_path2);
121 }
122
123 seq_puts(s, "\n");
124 }
125 mutex_unlock(&mdsc->mutex);
126
127 return 0;
128}
129
130#define CEPH_METRIC_SHOW(name, total, avg, min, max, sq) { \
131 s64 _total, _avg, _min, _max, _sq, _st; \
132 _avg = ktime_to_us(avg); \
133 _min = ktime_to_us(min == KTIME_MAX ? 0 : min); \
134 _max = ktime_to_us(max); \
135 _total = total - 1; \
136 _sq = _total > 0 ? DIV64_U64_ROUND_CLOSEST(sq, _total) : 0; \
137 _st = int_sqrt64(_sq); \
138 _st = ktime_to_us(_st); \
139 seq_printf(s, "%-14s%-12lld%-16lld%-16lld%-16lld%lld\n", \
140 name, total, _avg, _min, _max, _st); \
141}
142
143static int metric_show(struct seq_file *s, void *p)
144{
145 struct ceph_fs_client *fsc = s->private;
146 struct ceph_mds_client *mdsc = fsc->mdsc;
147 struct ceph_client_metric *m = &mdsc->metric;
148 int nr_caps = 0;
149 s64 total, sum, avg, min, max, sq;
150
151 seq_printf(s, "item total avg_lat(us) min_lat(us) max_lat(us) stdev(us)\n");
152 seq_printf(s, "-----------------------------------------------------------------------------------\n");
153
154 spin_lock(&m->read_latency_lock);
155 total = m->total_reads;
156 sum = m->read_latency_sum;
157 avg = total > 0 ? DIV64_U64_ROUND_CLOSEST(sum, total) : 0;
158 min = m->read_latency_min;
159 max = m->read_latency_max;
160 sq = m->read_latency_sq_sum;
161 spin_unlock(&m->read_latency_lock);
162 CEPH_METRIC_SHOW("read", total, avg, min, max, sq);
163
164 spin_lock(&m->write_latency_lock);
165 total = m->total_writes;
166 sum = m->write_latency_sum;
167 avg = total > 0 ? DIV64_U64_ROUND_CLOSEST(sum, total) : 0;
168 min = m->write_latency_min;
169 max = m->write_latency_max;
170 sq = m->write_latency_sq_sum;
171 spin_unlock(&m->write_latency_lock);
172 CEPH_METRIC_SHOW("write", total, avg, min, max, sq);
173
174 spin_lock(&m->metadata_latency_lock);
175 total = m->total_metadatas;
176 sum = m->metadata_latency_sum;
177 avg = total > 0 ? DIV64_U64_ROUND_CLOSEST(sum, total) : 0;
178 min = m->metadata_latency_min;
179 max = m->metadata_latency_max;
180 sq = m->metadata_latency_sq_sum;
181 spin_unlock(&m->metadata_latency_lock);
182 CEPH_METRIC_SHOW("metadata", total, avg, min, max, sq);
183
184 seq_printf(s, "\n");
185 seq_printf(s, "item total miss hit\n");
186 seq_printf(s, "-------------------------------------------------\n");
187
188 seq_printf(s, "%-14s%-16lld%-16lld%lld\n", "d_lease",
189 atomic64_read(&m->total_dentries),
190 percpu_counter_sum(&m->d_lease_mis),
191 percpu_counter_sum(&m->d_lease_hit));
192
193 nr_caps = atomic64_read(&m->total_caps);
194 seq_printf(s, "%-14s%-16d%-16lld%lld\n", "caps", nr_caps,
195 percpu_counter_sum(&m->i_caps_mis),
196 percpu_counter_sum(&m->i_caps_hit));
197
198 return 0;
199}
200
201static int caps_show_cb(struct inode *inode, struct ceph_cap *cap, void *p)
202{
203 struct seq_file *s = p;
204
205 seq_printf(s, "0x%-17llx%-17s%-17s\n", ceph_ino(inode),
206 ceph_cap_string(cap->issued),
207 ceph_cap_string(cap->implemented));
208 return 0;
209}
210
211static int caps_show(struct seq_file *s, void *p)
212{
213 struct ceph_fs_client *fsc = s->private;
214 struct ceph_mds_client *mdsc = fsc->mdsc;
215 int total, avail, used, reserved, min, i;
216 struct cap_wait *cw;
217
218 ceph_reservation_status(fsc, &total, &avail, &used, &reserved, &min);
219 seq_printf(s, "total\t\t%d\n"
220 "avail\t\t%d\n"
221 "used\t\t%d\n"
222 "reserved\t%d\n"
223 "min\t\t%d\n\n",
224 total, avail, used, reserved, min);
225 seq_printf(s, "ino issued implemented\n");
226 seq_printf(s, "-----------------------------------------------\n");
227
228 mutex_lock(&mdsc->mutex);
229 for (i = 0; i < mdsc->max_sessions; i++) {
230 struct ceph_mds_session *session;
231
232 session = __ceph_lookup_mds_session(mdsc, i);
233 if (!session)
234 continue;
235 mutex_unlock(&mdsc->mutex);
236 mutex_lock(&session->s_mutex);
237 ceph_iterate_session_caps(session, caps_show_cb, s);
238 mutex_unlock(&session->s_mutex);
239 ceph_put_mds_session(session);
240 mutex_lock(&mdsc->mutex);
241 }
242 mutex_unlock(&mdsc->mutex);
243
244 seq_printf(s, "\n\nWaiters:\n--------\n");
245 seq_printf(s, "tgid ino need want\n");
246 seq_printf(s, "-----------------------------------------------------\n");
247
248 spin_lock(&mdsc->caps_list_lock);
249 list_for_each_entry(cw, &mdsc->cap_wait_list, list) {
250 seq_printf(s, "%-13d0x%-17llx%-17s%-17s\n", cw->tgid, cw->ino,
251 ceph_cap_string(cw->need),
252 ceph_cap_string(cw->want));
253 }
254 spin_unlock(&mdsc->caps_list_lock);
255
256 return 0;
257}
258
259static int mds_sessions_show(struct seq_file *s, void *ptr)
260{
261 struct ceph_fs_client *fsc = s->private;
262 struct ceph_mds_client *mdsc = fsc->mdsc;
263 struct ceph_auth_client *ac = fsc->client->monc.auth;
264 struct ceph_options *opt = fsc->client->options;
265 int mds;
266
267 mutex_lock(&mdsc->mutex);
268
269 /* The 'num' portion of an 'entity name' */
270 seq_printf(s, "global_id %llu\n", ac->global_id);
271
272 /* The -o name mount argument */
273 seq_printf(s, "name \"%s\"\n", opt->name ? opt->name : "");
274
275 /* The list of MDS session rank+state */
276 for (mds = 0; mds < mdsc->max_sessions; mds++) {
277 struct ceph_mds_session *session =
278 __ceph_lookup_mds_session(mdsc, mds);
279 if (!session) {
280 continue;
281 }
282 mutex_unlock(&mdsc->mutex);
283 seq_printf(s, "mds.%d %s\n",
284 session->s_mds,
285 ceph_session_state_name(session->s_state));
286
287 ceph_put_mds_session(session);
288 mutex_lock(&mdsc->mutex);
289 }
290 mutex_unlock(&mdsc->mutex);
291
292 return 0;
293}
294
295DEFINE_SHOW_ATTRIBUTE(mdsmap);
296DEFINE_SHOW_ATTRIBUTE(mdsc);
297DEFINE_SHOW_ATTRIBUTE(caps);
298DEFINE_SHOW_ATTRIBUTE(mds_sessions);
299DEFINE_SHOW_ATTRIBUTE(metric);
300
301
302/*
303 * debugfs
304 */
305static int congestion_kb_set(void *data, u64 val)
306{
307 struct ceph_fs_client *fsc = (struct ceph_fs_client *)data;
308
309 fsc->mount_options->congestion_kb = (int)val;
310 return 0;
311}
312
313static int congestion_kb_get(void *data, u64 *val)
314{
315 struct ceph_fs_client *fsc = (struct ceph_fs_client *)data;
316
317 *val = (u64)fsc->mount_options->congestion_kb;
318 return 0;
319}
320
321DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops, congestion_kb_get,
322 congestion_kb_set, "%llu\n");
323
324
325void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc)
326{
327 dout("ceph_fs_debugfs_cleanup\n");
328 debugfs_remove(fsc->debugfs_bdi);
329 debugfs_remove(fsc->debugfs_congestion_kb);
330 debugfs_remove(fsc->debugfs_mdsmap);
331 debugfs_remove(fsc->debugfs_mds_sessions);
332 debugfs_remove(fsc->debugfs_caps);
333 debugfs_remove(fsc->debugfs_metric);
334 debugfs_remove(fsc->debugfs_mdsc);
335}
336
337void ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
338{
339 char name[100];
340
341 dout("ceph_fs_debugfs_init\n");
342 fsc->debugfs_congestion_kb =
343 debugfs_create_file("writeback_congestion_kb",
344 0600,
345 fsc->client->debugfs_dir,
346 fsc,
347 &congestion_kb_fops);
348
349 snprintf(name, sizeof(name), "../../bdi/%s",
350 bdi_dev_name(fsc->sb->s_bdi));
351 fsc->debugfs_bdi =
352 debugfs_create_symlink("bdi",
353 fsc->client->debugfs_dir,
354 name);
355
356 fsc->debugfs_mdsmap = debugfs_create_file("mdsmap",
357 0400,
358 fsc->client->debugfs_dir,
359 fsc,
360 &mdsmap_fops);
361
362 fsc->debugfs_mds_sessions = debugfs_create_file("mds_sessions",
363 0400,
364 fsc->client->debugfs_dir,
365 fsc,
366 &mds_sessions_fops);
367
368 fsc->debugfs_mdsc = debugfs_create_file("mdsc",
369 0400,
370 fsc->client->debugfs_dir,
371 fsc,
372 &mdsc_fops);
373
374 fsc->debugfs_metric = debugfs_create_file("metrics",
375 0400,
376 fsc->client->debugfs_dir,
377 fsc,
378 &metric_fops);
379
380 fsc->debugfs_caps = debugfs_create_file("caps",
381 0400,
382 fsc->client->debugfs_dir,
383 fsc,
384 &caps_fops);
385}
386
387
388#else /* CONFIG_DEBUG_FS */
389
390void ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
391{
392}
393
394void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc)
395{
396}
397
398#endif /* CONFIG_DEBUG_FS */