Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
3d14c5d2 | 2 | #include <linux/ceph/ceph_debug.h> |
76aa844d | 3 | |
06edf046 | 4 | #include <linux/device.h> |
5a0e3ad6 | 5 | #include <linux/slab.h> |
76aa844d SW |
6 | #include <linux/module.h> |
7 | #include <linux/ctype.h> | |
8 | #include <linux/debugfs.h> | |
9 | #include <linux/seq_file.h> | |
10 | ||
3d14c5d2 YS |
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> | |
76aa844d | 15 | |
6f453ed6 RD |
16 | #include "super.h" |
17 | ||
039934b8 SW |
18 | #ifdef CONFIG_DEBUG_FS |
19 | ||
3d14c5d2 | 20 | #include "mds_client.h" |
76aa844d SW |
21 | |
22 | static int mdsmap_show(struct seq_file *s, void *p) | |
23 | { | |
24 | int i; | |
3d14c5d2 | 25 | struct ceph_fs_client *fsc = s->private; |
76201b63 | 26 | struct ceph_mdsmap *mdsmap; |
76aa844d | 27 | |
d37b1d99 | 28 | if (!fsc->mdsc || !fsc->mdsc->mdsmap) |
76aa844d | 29 | return 0; |
76201b63 YZ |
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); | |
b38c9eb4 | 36 | for (i = 0; i < mdsmap->possible_max_rank; i++) { |
76201b63 YZ |
37 | struct ceph_entity_addr *addr = &mdsmap->m_info[i].addr; |
38 | int state = mdsmap->m_info[i].state; | |
3d14c5d2 | 39 | seq_printf(s, "\tmds%d\t%s\t(%s)\n", i, |
b726ec97 | 40 | ceph_pr_addr(addr), |
76aa844d SW |
41 | ceph_mds_state_name(state)); |
42 | } | |
43 | return 0; | |
44 | } | |
45 | ||
3d14c5d2 YS |
46 | /* |
47 | * mdsc debugfs | |
48 | */ | |
76aa844d SW |
49 | static int mdsc_show(struct seq_file *s, void *p) |
50 | { | |
3d14c5d2 YS |
51 | struct ceph_fs_client *fsc = s->private; |
52 | struct ceph_mds_client *mdsc = fsc->mdsc; | |
44ca18f2 SW |
53 | struct ceph_mds_request *req; |
54 | struct rb_node *rp; | |
13c41737 | 55 | int pathlen = 0; |
76aa844d SW |
56 | u64 pathbase; |
57 | char *path; | |
58 | ||
59 | mutex_lock(&mdsc->mutex); | |
44ca18f2 SW |
60 | for (rp = rb_first(&mdsc->request_tree); rp; rp = rb_next(rp)) { |
61 | req = rb_entry(rp, struct ceph_mds_request, r_node); | |
76aa844d | 62 | |
4af25fdd SW |
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) | |
76aa844d | 67 | seq_printf(s, "%lld\t(no request)\t", req->r_tid); |
4af25fdd SW |
68 | else |
69 | seq_printf(s, "%lld\t(no session)\t", req->r_tid); | |
76aa844d SW |
70 | |
71 | seq_printf(s, "%s", ceph_mds_op_name(req->r_op)); | |
72 | ||
bc2de10d | 73 | if (test_bit(CEPH_MDS_R_GOT_UNSAFE, &req->r_req_flags)) |
3364d113 | 74 | seq_puts(s, "\t(unsafe)"); |
76aa844d | 75 | else |
3364d113 | 76 | seq_puts(s, "\t"); |
76aa844d SW |
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); | |
f44c3890 DC |
83 | if (IS_ERR(path)) |
84 | path = NULL; | |
76aa844d | 85 | spin_lock(&req->r_dentry->d_lock); |
a455589f | 86 | seq_printf(s, " #%llx/%pd (%s)", |
2b0143b5 | 87 | ceph_ino(d_inode(req->r_dentry->d_parent)), |
a455589f | 88 | req->r_dentry, |
76aa844d SW |
89 | path ? path : ""); |
90 | spin_unlock(&req->r_dentry->d_lock); | |
f77f21bb | 91 | ceph_mdsc_free_path(path, pathlen); |
76aa844d SW |
92 | } else if (req->r_path1) { |
93 | seq_printf(s, " #%llx/%s", req->r_ino1.ino, | |
94 | req->r_path1); | |
c137a32a YZ |
95 | } else { |
96 | seq_printf(s, " #%llx", req->r_ino1.ino); | |
76aa844d SW |
97 | } |
98 | ||
99 | if (req->r_old_dentry) { | |
100 | path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen, | |
101 | &pathbase, 0); | |
f44c3890 DC |
102 | if (IS_ERR(path)) |
103 | path = NULL; | |
76aa844d | 104 | spin_lock(&req->r_old_dentry->d_lock); |
a455589f | 105 | seq_printf(s, " #%llx/%pd (%s)", |
844d87c3 SW |
106 | req->r_old_dentry_dir ? |
107 | ceph_ino(req->r_old_dentry_dir) : 0, | |
a455589f | 108 | req->r_old_dentry, |
76aa844d SW |
109 | path ? path : ""); |
110 | spin_unlock(&req->r_old_dentry->d_lock); | |
f77f21bb | 111 | ceph_mdsc_free_path(path, pathlen); |
aeda081c | 112 | } else if (req->r_path2 && req->r_op != CEPH_MDS_OP_SYMLINK) { |
76aa844d SW |
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 | ||
3364d113 | 120 | seq_puts(s, "\n"); |
76aa844d SW |
121 | } |
122 | mutex_unlock(&mdsc->mutex); | |
123 | ||
124 | return 0; | |
125 | } | |
126 | ||
ff4a80bf JL |
127 | static 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 | ||
76aa844d SW |
137 | static int caps_show(struct seq_file *s, void *p) |
138 | { | |
3d14c5d2 | 139 | struct ceph_fs_client *fsc = s->private; |
ff4a80bf JL |
140 | struct ceph_mds_client *mdsc = fsc->mdsc; |
141 | int total, avail, used, reserved, min, i; | |
3a3430af | 142 | struct cap_wait *cw; |
76aa844d | 143 | |
3d14c5d2 | 144 | ceph_reservation_status(fsc, &total, &avail, &used, &reserved, &min); |
76aa844d | 145 | seq_printf(s, "total\t\t%d\n" |
85ccce43 SW |
146 | "avail\t\t%d\n" |
147 | "used\t\t%d\n" | |
148 | "reserved\t%d\n" | |
ff4a80bf | 149 | "min\t\t%d\n\n", |
85ccce43 | 150 | total, avail, used, reserved, min); |
ff4a80bf JL |
151 | seq_printf(s, "ino issued implemented\n"); |
152 | seq_printf(s, "-----------------------------------------------\n"); | |
153 | ||
154 | mutex_lock(&mdsc->mutex); | |
155 | for (i = 0; i < mdsc->max_sessions; i++) { | |
156 | struct ceph_mds_session *session; | |
157 | ||
158 | session = __ceph_lookup_mds_session(mdsc, i); | |
159 | if (!session) | |
160 | continue; | |
161 | mutex_unlock(&mdsc->mutex); | |
162 | mutex_lock(&session->s_mutex); | |
163 | ceph_iterate_session_caps(session, caps_show_cb, s); | |
164 | mutex_unlock(&session->s_mutex); | |
165 | ceph_put_mds_session(session); | |
166 | mutex_lock(&mdsc->mutex); | |
167 | } | |
168 | mutex_unlock(&mdsc->mutex); | |
169 | ||
3a3430af JL |
170 | seq_printf(s, "\n\nWaiters:\n--------\n"); |
171 | seq_printf(s, "tgid ino need want\n"); | |
172 | seq_printf(s, "-----------------------------------------------------\n"); | |
173 | ||
174 | spin_lock(&mdsc->caps_list_lock); | |
175 | list_for_each_entry(cw, &mdsc->cap_wait_list, list) { | |
176 | seq_printf(s, "%-13d0x%-17lx%-17s%-17s\n", cw->tgid, cw->ino, | |
177 | ceph_cap_string(cw->need), | |
178 | ceph_cap_string(cw->want)); | |
179 | } | |
180 | spin_unlock(&mdsc->caps_list_lock); | |
181 | ||
76aa844d SW |
182 | return 0; |
183 | } | |
184 | ||
14ed9703 JS |
185 | static int mds_sessions_show(struct seq_file *s, void *ptr) |
186 | { | |
187 | struct ceph_fs_client *fsc = s->private; | |
188 | struct ceph_mds_client *mdsc = fsc->mdsc; | |
189 | struct ceph_auth_client *ac = fsc->client->monc.auth; | |
190 | struct ceph_options *opt = fsc->client->options; | |
191 | int mds = -1; | |
192 | ||
193 | mutex_lock(&mdsc->mutex); | |
194 | ||
195 | /* The 'num' portion of an 'entity name' */ | |
196 | seq_printf(s, "global_id %llu\n", ac->global_id); | |
197 | ||
198 | /* The -o name mount argument */ | |
199 | seq_printf(s, "name \"%s\"\n", opt->name ? opt->name : ""); | |
200 | ||
201 | /* The list of MDS session rank+state */ | |
202 | for (mds = 0; mds < mdsc->max_sessions; mds++) { | |
203 | struct ceph_mds_session *session = | |
204 | __ceph_lookup_mds_session(mdsc, mds); | |
205 | if (!session) { | |
206 | continue; | |
207 | } | |
208 | mutex_unlock(&mdsc->mutex); | |
209 | seq_printf(s, "mds.%d %s\n", | |
210 | session->s_mds, | |
211 | ceph_session_state_name(session->s_state)); | |
212 | ||
213 | ceph_put_mds_session(session); | |
214 | mutex_lock(&mdsc->mutex); | |
215 | } | |
216 | mutex_unlock(&mdsc->mutex); | |
217 | ||
218 | return 0; | |
219 | } | |
220 | ||
3d14c5d2 YS |
221 | CEPH_DEFINE_SHOW_FUNC(mdsmap_show) |
222 | CEPH_DEFINE_SHOW_FUNC(mdsc_show) | |
223 | CEPH_DEFINE_SHOW_FUNC(caps_show) | |
14ed9703 | 224 | CEPH_DEFINE_SHOW_FUNC(mds_sessions_show) |
3d14c5d2 | 225 | |
76aa844d | 226 | |
3d14c5d2 YS |
227 | /* |
228 | * debugfs | |
229 | */ | |
2baba250 YS |
230 | static int congestion_kb_set(void *data, u64 val) |
231 | { | |
3d14c5d2 | 232 | struct ceph_fs_client *fsc = (struct ceph_fs_client *)data; |
2baba250 | 233 | |
3d14c5d2 | 234 | fsc->mount_options->congestion_kb = (int)val; |
2baba250 YS |
235 | return 0; |
236 | } | |
237 | ||
238 | static int congestion_kb_get(void *data, u64 *val) | |
239 | { | |
3d14c5d2 | 240 | struct ceph_fs_client *fsc = (struct ceph_fs_client *)data; |
2baba250 | 241 | |
3d14c5d2 | 242 | *val = (u64)fsc->mount_options->congestion_kb; |
2baba250 YS |
243 | return 0; |
244 | } | |
245 | ||
2baba250 YS |
246 | DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops, congestion_kb_get, |
247 | congestion_kb_set, "%llu\n"); | |
248 | ||
76aa844d | 249 | |
3d14c5d2 | 250 | void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc) |
76aa844d | 251 | { |
3d14c5d2 YS |
252 | dout("ceph_fs_debugfs_cleanup\n"); |
253 | debugfs_remove(fsc->debugfs_bdi); | |
254 | debugfs_remove(fsc->debugfs_congestion_kb); | |
255 | debugfs_remove(fsc->debugfs_mdsmap); | |
14ed9703 | 256 | debugfs_remove(fsc->debugfs_mds_sessions); |
3d14c5d2 YS |
257 | debugfs_remove(fsc->debugfs_caps); |
258 | debugfs_remove(fsc->debugfs_mdsc); | |
76aa844d SW |
259 | } |
260 | ||
1a829ff2 | 261 | void ceph_fs_debugfs_init(struct ceph_fs_client *fsc) |
76aa844d | 262 | { |
3d14c5d2 | 263 | char name[100]; |
76aa844d | 264 | |
3d14c5d2 YS |
265 | dout("ceph_fs_debugfs_init\n"); |
266 | fsc->debugfs_congestion_kb = | |
267 | debugfs_create_file("writeback_congestion_kb", | |
268 | 0600, | |
269 | fsc->client->debugfs_dir, | |
270 | fsc, | |
271 | &congestion_kb_fops); | |
76aa844d | 272 | |
3d14c5d2 | 273 | snprintf(name, sizeof(name), "../../bdi/%s", |
09dc9fc2 | 274 | dev_name(fsc->sb->s_bdi->dev)); |
3d14c5d2 YS |
275 | fsc->debugfs_bdi = |
276 | debugfs_create_symlink("bdi", | |
277 | fsc->client->debugfs_dir, | |
278 | name); | |
76aa844d | 279 | |
3d14c5d2 | 280 | fsc->debugfs_mdsmap = debugfs_create_file("mdsmap", |
11e1478d | 281 | 0400, |
3d14c5d2 YS |
282 | fsc->client->debugfs_dir, |
283 | fsc, | |
76aa844d | 284 | &mdsmap_show_fops); |
76aa844d | 285 | |
14ed9703 | 286 | fsc->debugfs_mds_sessions = debugfs_create_file("mds_sessions", |
11e1478d | 287 | 0400, |
14ed9703 JS |
288 | fsc->client->debugfs_dir, |
289 | fsc, | |
290 | &mds_sessions_show_fops); | |
14ed9703 | 291 | |
3d14c5d2 | 292 | fsc->debugfs_mdsc = debugfs_create_file("mdsc", |
11e1478d | 293 | 0400, |
3d14c5d2 YS |
294 | fsc->client->debugfs_dir, |
295 | fsc, | |
296 | &mdsc_show_fops); | |
76aa844d | 297 | |
3d14c5d2 | 298 | fsc->debugfs_caps = debugfs_create_file("caps", |
76aa844d | 299 | 0400, |
3d14c5d2 YS |
300 | fsc->client->debugfs_dir, |
301 | fsc, | |
76aa844d | 302 | &caps_show_fops); |
76aa844d SW |
303 | } |
304 | ||
76aa844d | 305 | |
213c99ee | 306 | #else /* CONFIG_DEBUG_FS */ |
039934b8 | 307 | |
1a829ff2 | 308 | void ceph_fs_debugfs_init(struct ceph_fs_client *fsc) |
039934b8 | 309 | { |
039934b8 SW |
310 | } |
311 | ||
3d14c5d2 | 312 | void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc) |
039934b8 SW |
313 | { |
314 | } | |
315 | ||
213c99ee | 316 | #endif /* CONFIG_DEBUG_FS */ |