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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); | |
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; | |
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; | |
76aa844d | 142 | |
3d14c5d2 | 143 | ceph_reservation_status(fsc, &total, &avail, &used, &reserved, &min); |
76aa844d | 144 | seq_printf(s, "total\t\t%d\n" |
85ccce43 SW |
145 | "avail\t\t%d\n" |
146 | "used\t\t%d\n" | |
147 | "reserved\t%d\n" | |
ff4a80bf | 148 | "min\t\t%d\n\n", |
85ccce43 | 149 | total, avail, used, reserved, min); |
ff4a80bf JL |
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 | ||
76aa844d SW |
169 | return 0; |
170 | } | |
171 | ||
14ed9703 JS |
172 | static 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 | ||
3d14c5d2 YS |
208 | CEPH_DEFINE_SHOW_FUNC(mdsmap_show) |
209 | CEPH_DEFINE_SHOW_FUNC(mdsc_show) | |
210 | CEPH_DEFINE_SHOW_FUNC(caps_show) | |
14ed9703 | 211 | CEPH_DEFINE_SHOW_FUNC(mds_sessions_show) |
3d14c5d2 | 212 | |
76aa844d | 213 | |
3d14c5d2 YS |
214 | /* |
215 | * debugfs | |
216 | */ | |
2baba250 YS |
217 | static int congestion_kb_set(void *data, u64 val) |
218 | { | |
3d14c5d2 | 219 | struct ceph_fs_client *fsc = (struct ceph_fs_client *)data; |
2baba250 | 220 | |
3d14c5d2 | 221 | fsc->mount_options->congestion_kb = (int)val; |
2baba250 YS |
222 | return 0; |
223 | } | |
224 | ||
225 | static int congestion_kb_get(void *data, u64 *val) | |
226 | { | |
3d14c5d2 | 227 | struct ceph_fs_client *fsc = (struct ceph_fs_client *)data; |
2baba250 | 228 | |
3d14c5d2 | 229 | *val = (u64)fsc->mount_options->congestion_kb; |
2baba250 YS |
230 | return 0; |
231 | } | |
232 | ||
2baba250 YS |
233 | DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops, congestion_kb_get, |
234 | congestion_kb_set, "%llu\n"); | |
235 | ||
76aa844d | 236 | |
3d14c5d2 | 237 | void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc) |
76aa844d | 238 | { |
3d14c5d2 YS |
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); | |
14ed9703 | 243 | debugfs_remove(fsc->debugfs_mds_sessions); |
3d14c5d2 YS |
244 | debugfs_remove(fsc->debugfs_caps); |
245 | debugfs_remove(fsc->debugfs_mdsc); | |
76aa844d SW |
246 | } |
247 | ||
1a829ff2 | 248 | void ceph_fs_debugfs_init(struct ceph_fs_client *fsc) |
76aa844d | 249 | { |
3d14c5d2 | 250 | char name[100]; |
76aa844d | 251 | |
3d14c5d2 YS |
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); | |
76aa844d | 259 | |
3d14c5d2 | 260 | snprintf(name, sizeof(name), "../../bdi/%s", |
09dc9fc2 | 261 | dev_name(fsc->sb->s_bdi->dev)); |
3d14c5d2 YS |
262 | fsc->debugfs_bdi = |
263 | debugfs_create_symlink("bdi", | |
264 | fsc->client->debugfs_dir, | |
265 | name); | |
76aa844d | 266 | |
3d14c5d2 | 267 | fsc->debugfs_mdsmap = debugfs_create_file("mdsmap", |
11e1478d | 268 | 0400, |
3d14c5d2 YS |
269 | fsc->client->debugfs_dir, |
270 | fsc, | |
76aa844d | 271 | &mdsmap_show_fops); |
76aa844d | 272 | |
14ed9703 | 273 | fsc->debugfs_mds_sessions = debugfs_create_file("mds_sessions", |
11e1478d | 274 | 0400, |
14ed9703 JS |
275 | fsc->client->debugfs_dir, |
276 | fsc, | |
277 | &mds_sessions_show_fops); | |
14ed9703 | 278 | |
3d14c5d2 | 279 | fsc->debugfs_mdsc = debugfs_create_file("mdsc", |
11e1478d | 280 | 0400, |
3d14c5d2 YS |
281 | fsc->client->debugfs_dir, |
282 | fsc, | |
283 | &mdsc_show_fops); | |
76aa844d | 284 | |
3d14c5d2 | 285 | fsc->debugfs_caps = debugfs_create_file("caps", |
76aa844d | 286 | 0400, |
3d14c5d2 YS |
287 | fsc->client->debugfs_dir, |
288 | fsc, | |
76aa844d | 289 | &caps_show_fops); |
76aa844d SW |
290 | } |
291 | ||
76aa844d | 292 | |
213c99ee | 293 | #else /* CONFIG_DEBUG_FS */ |
039934b8 | 294 | |
1a829ff2 | 295 | void ceph_fs_debugfs_init(struct ceph_fs_client *fsc) |
039934b8 SW |
296 | { |
297 | return 0; | |
298 | } | |
299 | ||
3d14c5d2 | 300 | void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc) |
039934b8 SW |
301 | { |
302 | } | |
303 | ||
213c99ee | 304 | #endif /* CONFIG_DEBUG_FS */ |