1 #include "ceph_debug.h"
3 #include <linux/module.h>
4 #include <linux/ctype.h>
5 #include <linux/debugfs.h>
6 #include <linux/seq_file.h>
9 #include "mds_client.h"
12 * Implement /sys/kernel/debug/ceph fun
14 * /sys/kernel/debug/ceph/client* - an instance of the ceph client
15 * .../osdmap - current osdmap
16 * .../mdsmap - current mdsmap
17 * .../monmap - current monmap
18 * .../osdc - active osd requests
19 * .../mdsc - active mds requests
20 * .../monc - mon client state
21 * .../dentry_lru - dump contents of dentry lru
22 * .../caps - expose cap (reservation) stats
25 static struct dentry
*ceph_debugfs_dir
;
27 static int monmap_show(struct seq_file
*s
, void *p
)
30 struct ceph_client
*client
= s
->private;
32 if (client
->monc
.monmap
== NULL
)
35 seq_printf(s
, "epoch %d\n", client
->monc
.monmap
->epoch
);
36 for (i
= 0; i
< client
->monc
.monmap
->num_mon
; i
++) {
37 struct ceph_entity_inst
*inst
=
38 &client
->monc
.monmap
->mon_inst
[i
];
40 seq_printf(s
, "\t%s%lld\t%s\n",
41 ENTITY_NAME(inst
->name
),
42 pr_addr(&inst
->addr
.in_addr
));
47 static int mdsmap_show(struct seq_file
*s
, void *p
)
50 struct ceph_client
*client
= s
->private;
52 if (client
->mdsc
.mdsmap
== NULL
)
54 seq_printf(s
, "epoch %d\n", client
->mdsc
.mdsmap
->m_epoch
);
55 seq_printf(s
, "root %d\n", client
->mdsc
.mdsmap
->m_root
);
56 seq_printf(s
, "session_timeout %d\n",
57 client
->mdsc
.mdsmap
->m_session_timeout
);
58 seq_printf(s
, "session_autoclose %d\n",
59 client
->mdsc
.mdsmap
->m_session_autoclose
);
60 for (i
= 0; i
< client
->mdsc
.mdsmap
->m_max_mds
; i
++) {
61 struct ceph_entity_addr
*addr
=
62 &client
->mdsc
.mdsmap
->m_info
[i
].addr
;
63 int state
= client
->mdsc
.mdsmap
->m_info
[i
].state
;
65 seq_printf(s
, "\tmds%d\t%s\t(%s)\n", i
, pr_addr(&addr
->in_addr
),
66 ceph_mds_state_name(state
));
71 static int osdmap_show(struct seq_file
*s
, void *p
)
74 struct ceph_client
*client
= s
->private;
76 if (client
->osdc
.osdmap
== NULL
)
78 seq_printf(s
, "epoch %d\n", client
->osdc
.osdmap
->epoch
);
79 seq_printf(s
, "flags%s%s\n",
80 (client
->osdc
.osdmap
->flags
& CEPH_OSDMAP_NEARFULL
) ?
82 (client
->osdc
.osdmap
->flags
& CEPH_OSDMAP_FULL
) ?
84 for (i
= 0; i
< client
->osdc
.osdmap
->num_pools
; i
++) {
85 struct ceph_pg_pool_info
*pool
=
86 &client
->osdc
.osdmap
->pg_pool
[i
];
87 seq_printf(s
, "pg_pool %d pg_num %d / %d, lpg_num %d / %d\n",
88 i
, pool
->v
.pg_num
, pool
->pg_num_mask
,
89 pool
->v
.lpg_num
, pool
->lpg_num_mask
);
91 for (i
= 0; i
< client
->osdc
.osdmap
->max_osd
; i
++) {
92 struct ceph_entity_addr
*addr
=
93 &client
->osdc
.osdmap
->osd_addr
[i
];
94 int state
= client
->osdc
.osdmap
->osd_state
[i
];
97 seq_printf(s
, "\tosd%d\t%s\t%3d%%\t(%s)\n",
98 i
, pr_addr(&addr
->in_addr
),
99 ((client
->osdc
.osdmap
->osd_weight
[i
]*100) >> 16),
100 ceph_osdmap_state_str(sb
, sizeof(sb
), state
));
105 static int monc_show(struct seq_file
*s
, void *p
)
107 struct ceph_client
*client
= s
->private;
108 struct ceph_mon_statfs_request
*req
;
111 struct ceph_mon_client
*monc
= &client
->monc
;
113 mutex_lock(&monc
->mutex
);
115 if (monc
->have_mdsmap
)
116 seq_printf(s
, "have mdsmap %u\n", (unsigned)monc
->have_mdsmap
);
117 if (monc
->have_osdmap
)
118 seq_printf(s
, "have osdmap %u\n", (unsigned)monc
->have_osdmap
);
119 if (monc
->want_next_osdmap
)
120 seq_printf(s
, "want next osdmap\n");
122 while (nexttid
< monc
->last_tid
) {
123 got
= radix_tree_gang_lookup(&monc
->statfs_request_tree
,
124 (void **)&req
, nexttid
, 1);
127 nexttid
= req
->tid
+ 1;
129 seq_printf(s
, "%lld statfs\n", req
->tid
);
131 mutex_unlock(&monc
->mutex
);
136 static int mdsc_show(struct seq_file
*s
, void *p
)
138 struct ceph_client
*client
= s
->private;
139 struct ceph_mds_request
*req
;
142 struct ceph_mds_client
*mdsc
= &client
->mdsc
;
147 mutex_lock(&mdsc
->mutex
);
148 while (nexttid
< mdsc
->last_tid
) {
149 got
= radix_tree_gang_lookup(&mdsc
->request_tree
,
150 (void **)&req
, nexttid
, 1);
153 nexttid
= req
->r_tid
+ 1;
156 seq_printf(s
, "%lld\tmds%d\t", req
->r_tid
, req
->r_mds
);
158 seq_printf(s
, "%lld\t(no request)\t", req
->r_tid
);
160 seq_printf(s
, "%s", ceph_mds_op_name(req
->r_op
));
162 if (req
->r_got_unsafe
)
163 seq_printf(s
, "\t(unsafe)");
168 seq_printf(s
, " #%llx", ceph_ino(req
->r_inode
));
169 } else if (req
->r_dentry
) {
170 path
= ceph_mdsc_build_path(req
->r_dentry
, &pathlen
,
172 spin_lock(&req
->r_dentry
->d_lock
);
173 seq_printf(s
, " #%llx/%.*s (%s)",
174 ceph_ino(req
->r_dentry
->d_parent
->d_inode
),
175 req
->r_dentry
->d_name
.len
,
176 req
->r_dentry
->d_name
.name
,
178 spin_unlock(&req
->r_dentry
->d_lock
);
180 } else if (req
->r_path1
) {
181 seq_printf(s
, " #%llx/%s", req
->r_ino1
.ino
,
185 if (req
->r_old_dentry
) {
186 path
= ceph_mdsc_build_path(req
->r_old_dentry
, &pathlen
,
188 spin_lock(&req
->r_old_dentry
->d_lock
);
189 seq_printf(s
, " #%llx/%.*s (%s)",
190 ceph_ino(req
->r_old_dentry
->d_parent
->d_inode
),
191 req
->r_old_dentry
->d_name
.len
,
192 req
->r_old_dentry
->d_name
.name
,
194 spin_unlock(&req
->r_old_dentry
->d_lock
);
196 } else if (req
->r_path2
) {
198 seq_printf(s
, " #%llx/%s", req
->r_ino2
.ino
,
201 seq_printf(s
, " %s", req
->r_path2
);
206 mutex_unlock(&mdsc
->mutex
);
211 static int osdc_show(struct seq_file
*s
, void *pp
)
213 struct ceph_client
*client
= s
->private;
214 struct ceph_osd_client
*osdc
= &client
->osdc
;
217 mutex_lock(&osdc
->request_mutex
);
218 for (p
= rb_first(&osdc
->requests
); p
; p
= rb_next(p
)) {
219 struct ceph_osd_request
*req
;
220 struct ceph_osd_request_head
*head
;
221 struct ceph_osd_op
*op
;
226 req
= rb_entry(p
, struct ceph_osd_request
, r_node
);
228 seq_printf(s
, "%lld\tosd%d\t", req
->r_tid
,
229 req
->r_osd
? req
->r_osd
->o_osd
: -1);
231 head
= req
->r_request
->front
.iov_base
;
232 op
= (void *)(head
+ 1);
234 num_ops
= le16_to_cpu(head
->num_ops
);
235 olen
= le32_to_cpu(head
->object_len
);
236 seq_printf(s
, "%.*s", olen
,
237 (const char *)(head
->ops
+ num_ops
));
239 if (req
->r_reassert_version
.epoch
)
240 seq_printf(s
, "\t%u'%llu",
241 (unsigned)le32_to_cpu(req
->r_reassert_version
.epoch
),
242 le64_to_cpu(req
->r_reassert_version
.version
));
246 for (i
= 0; i
< num_ops
; i
++) {
247 opcode
= le16_to_cpu(op
->op
);
248 seq_printf(s
, "\t%s", ceph_osd_op_name(opcode
));
254 mutex_unlock(&osdc
->request_mutex
);
258 static int caps_show(struct seq_file
*s
, void *p
)
260 struct ceph_client
*client
= p
;
261 int total
, avail
, used
, reserved
;
263 ceph_reservation_status(client
, &total
, &avail
, &used
, &reserved
);
264 seq_printf(s
, "total\t\t%d\n"
268 total
, avail
, used
, reserved
);
272 static int dentry_lru_show(struct seq_file
*s
, void *ptr
)
274 struct ceph_client
*client
= s
->private;
275 struct ceph_mds_client
*mdsc
= &client
->mdsc
;
276 struct ceph_dentry_info
*di
;
278 spin_lock(&mdsc
->dentry_lru_lock
);
279 list_for_each_entry(di
, &mdsc
->dentry_lru
, lru
) {
280 struct dentry
*dentry
= di
->dentry
;
281 seq_printf(s
, "%p %p\t%.*s\n",
282 di
, dentry
, dentry
->d_name
.len
, dentry
->d_name
.name
);
284 spin_unlock(&mdsc
->dentry_lru_lock
);
289 #define DEFINE_SHOW_FUNC(name) \
290 static int name##_open(struct inode *inode, struct file *file) \
292 struct seq_file *sf; \
295 ret = single_open(file, name, NULL); \
296 sf = file->private_data; \
297 sf->private = inode->i_private; \
301 static const struct file_operations name##_fops = { \
302 .open = name##_open, \
304 .llseek = seq_lseek, \
305 .release = single_release, \
308 DEFINE_SHOW_FUNC(monmap_show
)
309 DEFINE_SHOW_FUNC(mdsmap_show
)
310 DEFINE_SHOW_FUNC(osdmap_show
)
311 DEFINE_SHOW_FUNC(monc_show
)
312 DEFINE_SHOW_FUNC(mdsc_show
)
313 DEFINE_SHOW_FUNC(osdc_show
)
314 DEFINE_SHOW_FUNC(dentry_lru_show
)
315 DEFINE_SHOW_FUNC(caps_show
)
317 int __init
ceph_debugfs_init(void)
319 ceph_debugfs_dir
= debugfs_create_dir("ceph", NULL
);
320 if (!ceph_debugfs_dir
)
325 void ceph_debugfs_cleanup(void)
327 debugfs_remove(ceph_debugfs_dir
);
330 int ceph_debugfs_client_init(struct ceph_client
*client
)
335 snprintf(name
, sizeof(name
), FSID_FORMAT
".client%lld",
336 PR_FSID(&client
->monc
.monmap
->fsid
), client
->whoami
);
338 client
->debugfs_dir
= debugfs_create_dir(name
, ceph_debugfs_dir
);
339 if (!client
->debugfs_dir
)
342 client
->monc
.debugfs_file
= debugfs_create_file("monc",
347 if (!client
->monc
.debugfs_file
)
350 client
->mdsc
.debugfs_file
= debugfs_create_file("mdsc",
355 if (!client
->mdsc
.debugfs_file
)
358 client
->osdc
.debugfs_file
= debugfs_create_file("osdc",
363 if (!client
->osdc
.debugfs_file
)
366 client
->debugfs_monmap
= debugfs_create_file("monmap",
371 if (!client
->debugfs_monmap
)
374 client
->debugfs_mdsmap
= debugfs_create_file("mdsmap",
379 if (!client
->debugfs_mdsmap
)
382 client
->debugfs_osdmap
= debugfs_create_file("osdmap",
387 if (!client
->debugfs_osdmap
)
390 client
->debugfs_dentry_lru
= debugfs_create_file("dentry_lru",
394 &dentry_lru_show_fops
);
395 if (!client
->debugfs_dentry_lru
)
398 client
->debugfs_caps
= debugfs_create_file("caps",
403 if (!client
->debugfs_caps
)
409 ceph_debugfs_client_cleanup(client
);
413 void ceph_debugfs_client_cleanup(struct ceph_client
*client
)
415 debugfs_remove(client
->debugfs_caps
);
416 debugfs_remove(client
->debugfs_dentry_lru
);
417 debugfs_remove(client
->debugfs_osdmap
);
418 debugfs_remove(client
->debugfs_mdsmap
);
419 debugfs_remove(client
->debugfs_monmap
);
420 debugfs_remove(client
->osdc
.debugfs_file
);
421 debugfs_remove(client
->mdsc
.debugfs_file
);
422 debugfs_remove(client
->monc
.debugfs_file
);
423 debugfs_remove(client
->debugfs_dir
);
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