1 #include "ceph_debug.h"
3 #include <linux/device.h>
4 #include <linux/module.h>
5 #include <linux/ctype.h>
6 #include <linux/debugfs.h>
7 #include <linux/seq_file.h>
10 #include "mds_client.h"
11 #include "mon_client.h"
14 #ifdef CONFIG_DEBUG_FS
17 * Implement /sys/kernel/debug/ceph fun
19 * /sys/kernel/debug/ceph/client* - an instance of the ceph client
20 * .../osdmap - current osdmap
21 * .../mdsmap - current mdsmap
22 * .../monmap - current monmap
23 * .../osdc - active osd requests
24 * .../mdsc - active mds requests
25 * .../monc - mon client state
26 * .../dentry_lru - dump contents of dentry lru
27 * .../caps - expose cap (reservation) stats
28 * .../bdi - symlink to ../../bdi/something
31 static struct dentry
*ceph_debugfs_dir
;
33 static int monmap_show(struct seq_file
*s
, void *p
)
36 struct ceph_client
*client
= s
->private;
38 if (client
->monc
.monmap
== NULL
)
41 seq_printf(s
, "epoch %d\n", client
->monc
.monmap
->epoch
);
42 for (i
= 0; i
< client
->monc
.monmap
->num_mon
; i
++) {
43 struct ceph_entity_inst
*inst
=
44 &client
->monc
.monmap
->mon_inst
[i
];
46 seq_printf(s
, "\t%s%lld\t%s\n",
47 ENTITY_NAME(inst
->name
),
48 pr_addr(&inst
->addr
.in_addr
));
53 static int mdsmap_show(struct seq_file
*s
, void *p
)
56 struct ceph_client
*client
= s
->private;
58 if (client
->mdsc
.mdsmap
== NULL
)
60 seq_printf(s
, "epoch %d\n", client
->mdsc
.mdsmap
->m_epoch
);
61 seq_printf(s
, "root %d\n", client
->mdsc
.mdsmap
->m_root
);
62 seq_printf(s
, "session_timeout %d\n",
63 client
->mdsc
.mdsmap
->m_session_timeout
);
64 seq_printf(s
, "session_autoclose %d\n",
65 client
->mdsc
.mdsmap
->m_session_autoclose
);
66 for (i
= 0; i
< client
->mdsc
.mdsmap
->m_max_mds
; i
++) {
67 struct ceph_entity_addr
*addr
=
68 &client
->mdsc
.mdsmap
->m_info
[i
].addr
;
69 int state
= client
->mdsc
.mdsmap
->m_info
[i
].state
;
71 seq_printf(s
, "\tmds%d\t%s\t(%s)\n", i
, pr_addr(&addr
->in_addr
),
72 ceph_mds_state_name(state
));
77 static int osdmap_show(struct seq_file
*s
, void *p
)
80 struct ceph_client
*client
= s
->private;
82 if (client
->osdc
.osdmap
== NULL
)
84 seq_printf(s
, "epoch %d\n", client
->osdc
.osdmap
->epoch
);
85 seq_printf(s
, "flags%s%s\n",
86 (client
->osdc
.osdmap
->flags
& CEPH_OSDMAP_NEARFULL
) ?
88 (client
->osdc
.osdmap
->flags
& CEPH_OSDMAP_FULL
) ?
90 for (i
= 0; i
< client
->osdc
.osdmap
->num_pools
; i
++) {
91 struct ceph_pg_pool_info
*pool
=
92 &client
->osdc
.osdmap
->pg_pool
[i
];
93 seq_printf(s
, "pg_pool %d pg_num %d / %d, lpg_num %d / %d\n",
94 i
, pool
->v
.pg_num
, pool
->pg_num_mask
,
95 pool
->v
.lpg_num
, pool
->lpg_num_mask
);
97 for (i
= 0; i
< client
->osdc
.osdmap
->max_osd
; i
++) {
98 struct ceph_entity_addr
*addr
=
99 &client
->osdc
.osdmap
->osd_addr
[i
];
100 int state
= client
->osdc
.osdmap
->osd_state
[i
];
103 seq_printf(s
, "\tosd%d\t%s\t%3d%%\t(%s)\n",
104 i
, pr_addr(&addr
->in_addr
),
105 ((client
->osdc
.osdmap
->osd_weight
[i
]*100) >> 16),
106 ceph_osdmap_state_str(sb
, sizeof(sb
), state
));
111 static int monc_show(struct seq_file
*s
, void *p
)
113 struct ceph_client
*client
= s
->private;
114 struct ceph_mon_statfs_request
*req
;
117 struct ceph_mon_client
*monc
= &client
->monc
;
119 mutex_lock(&monc
->mutex
);
121 if (monc
->have_mdsmap
)
122 seq_printf(s
, "have mdsmap %u\n", (unsigned)monc
->have_mdsmap
);
123 if (monc
->have_osdmap
)
124 seq_printf(s
, "have osdmap %u\n", (unsigned)monc
->have_osdmap
);
125 if (monc
->want_next_osdmap
)
126 seq_printf(s
, "want next osdmap\n");
128 while (nexttid
< monc
->last_tid
) {
129 got
= radix_tree_gang_lookup(&monc
->statfs_request_tree
,
130 (void **)&req
, nexttid
, 1);
133 nexttid
= req
->tid
+ 1;
135 seq_printf(s
, "%lld statfs\n", req
->tid
);
137 mutex_unlock(&monc
->mutex
);
142 static int mdsc_show(struct seq_file
*s
, void *p
)
144 struct ceph_client
*client
= s
->private;
145 struct ceph_mds_request
*req
;
148 struct ceph_mds_client
*mdsc
= &client
->mdsc
;
153 mutex_lock(&mdsc
->mutex
);
154 while (nexttid
< mdsc
->last_tid
) {
155 got
= radix_tree_gang_lookup(&mdsc
->request_tree
,
156 (void **)&req
, nexttid
, 1);
159 nexttid
= req
->r_tid
+ 1;
162 seq_printf(s
, "%lld\tmds%d\t", req
->r_tid
, req
->r_mds
);
164 seq_printf(s
, "%lld\t(no request)\t", req
->r_tid
);
166 seq_printf(s
, "%s", ceph_mds_op_name(req
->r_op
));
168 if (req
->r_got_unsafe
)
169 seq_printf(s
, "\t(unsafe)");
174 seq_printf(s
, " #%llx", ceph_ino(req
->r_inode
));
175 } else if (req
->r_dentry
) {
176 path
= ceph_mdsc_build_path(req
->r_dentry
, &pathlen
,
178 spin_lock(&req
->r_dentry
->d_lock
);
179 seq_printf(s
, " #%llx/%.*s (%s)",
180 ceph_ino(req
->r_dentry
->d_parent
->d_inode
),
181 req
->r_dentry
->d_name
.len
,
182 req
->r_dentry
->d_name
.name
,
184 spin_unlock(&req
->r_dentry
->d_lock
);
186 } else if (req
->r_path1
) {
187 seq_printf(s
, " #%llx/%s", req
->r_ino1
.ino
,
191 if (req
->r_old_dentry
) {
192 path
= ceph_mdsc_build_path(req
->r_old_dentry
, &pathlen
,
194 spin_lock(&req
->r_old_dentry
->d_lock
);
195 seq_printf(s
, " #%llx/%.*s (%s)",
196 ceph_ino(req
->r_old_dentry
->d_parent
->d_inode
),
197 req
->r_old_dentry
->d_name
.len
,
198 req
->r_old_dentry
->d_name
.name
,
200 spin_unlock(&req
->r_old_dentry
->d_lock
);
202 } else if (req
->r_path2
) {
204 seq_printf(s
, " #%llx/%s", req
->r_ino2
.ino
,
207 seq_printf(s
, " %s", req
->r_path2
);
212 mutex_unlock(&mdsc
->mutex
);
217 static int osdc_show(struct seq_file
*s
, void *pp
)
219 struct ceph_client
*client
= s
->private;
220 struct ceph_osd_client
*osdc
= &client
->osdc
;
223 mutex_lock(&osdc
->request_mutex
);
224 for (p
= rb_first(&osdc
->requests
); p
; p
= rb_next(p
)) {
225 struct ceph_osd_request
*req
;
226 struct ceph_osd_request_head
*head
;
227 struct ceph_osd_op
*op
;
232 req
= rb_entry(p
, struct ceph_osd_request
, r_node
);
234 seq_printf(s
, "%lld\tosd%d\t%d.%x\t", req
->r_tid
,
235 req
->r_osd
? req
->r_osd
->o_osd
: -1,
236 le32_to_cpu(req
->r_pgid
.pool
),
237 le16_to_cpu(req
->r_pgid
.ps
));
239 head
= req
->r_request
->front
.iov_base
;
240 op
= (void *)(head
+ 1);
242 num_ops
= le16_to_cpu(head
->num_ops
);
243 olen
= le32_to_cpu(head
->object_len
);
244 seq_printf(s
, "%.*s", olen
,
245 (const char *)(head
->ops
+ num_ops
));
247 if (req
->r_reassert_version
.epoch
)
248 seq_printf(s
, "\t%u'%llu",
249 (unsigned)le32_to_cpu(req
->r_reassert_version
.epoch
),
250 le64_to_cpu(req
->r_reassert_version
.version
));
254 for (i
= 0; i
< num_ops
; i
++) {
255 opcode
= le16_to_cpu(op
->op
);
256 seq_printf(s
, "\t%s", ceph_osd_op_name(opcode
));
262 mutex_unlock(&osdc
->request_mutex
);
266 static int caps_show(struct seq_file
*s
, void *p
)
268 struct ceph_client
*client
= p
;
269 int total
, avail
, used
, reserved
;
271 ceph_reservation_status(client
, &total
, &avail
, &used
, &reserved
);
272 seq_printf(s
, "total\t\t%d\n"
276 total
, avail
, used
, reserved
);
280 static int dentry_lru_show(struct seq_file
*s
, void *ptr
)
282 struct ceph_client
*client
= s
->private;
283 struct ceph_mds_client
*mdsc
= &client
->mdsc
;
284 struct ceph_dentry_info
*di
;
286 spin_lock(&mdsc
->dentry_lru_lock
);
287 list_for_each_entry(di
, &mdsc
->dentry_lru
, lru
) {
288 struct dentry
*dentry
= di
->dentry
;
289 seq_printf(s
, "%p %p\t%.*s\n",
290 di
, dentry
, dentry
->d_name
.len
, dentry
->d_name
.name
);
292 spin_unlock(&mdsc
->dentry_lru_lock
);
297 #define DEFINE_SHOW_FUNC(name) \
298 static int name##_open(struct inode *inode, struct file *file) \
300 struct seq_file *sf; \
303 ret = single_open(file, name, NULL); \
304 sf = file->private_data; \
305 sf->private = inode->i_private; \
309 static const struct file_operations name##_fops = { \
310 .open = name##_open, \
312 .llseek = seq_lseek, \
313 .release = single_release, \
316 DEFINE_SHOW_FUNC(monmap_show
)
317 DEFINE_SHOW_FUNC(mdsmap_show
)
318 DEFINE_SHOW_FUNC(osdmap_show
)
319 DEFINE_SHOW_FUNC(monc_show
)
320 DEFINE_SHOW_FUNC(mdsc_show
)
321 DEFINE_SHOW_FUNC(osdc_show
)
322 DEFINE_SHOW_FUNC(dentry_lru_show
)
323 DEFINE_SHOW_FUNC(caps_show
)
325 static int congestion_kb_set(void *data
, u64 val
)
327 struct ceph_client
*client
= (struct ceph_client
*)data
;
330 client
->mount_args
->congestion_kb
= (int)val
;
335 static int congestion_kb_get(void *data
, u64
*val
)
337 struct ceph_client
*client
= (struct ceph_client
*)data
;
340 *val
= (u64
)client
->mount_args
->congestion_kb
;
346 DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops
, congestion_kb_get
,
347 congestion_kb_set
, "%llu\n");
349 int __init
ceph_debugfs_init(void)
351 ceph_debugfs_dir
= debugfs_create_dir("ceph", NULL
);
352 if (!ceph_debugfs_dir
)
357 void ceph_debugfs_cleanup(void)
359 debugfs_remove(ceph_debugfs_dir
);
362 int ceph_debugfs_client_init(struct ceph_client
*client
)
367 snprintf(name
, sizeof(name
), FSID_FORMAT
".client%lld",
368 PR_FSID(&client
->fsid
), client
->monc
.auth
->global_id
);
370 client
->debugfs_dir
= debugfs_create_dir(name
, ceph_debugfs_dir
);
371 if (!client
->debugfs_dir
)
374 client
->monc
.debugfs_file
= debugfs_create_file("monc",
379 if (!client
->monc
.debugfs_file
)
382 client
->mdsc
.debugfs_file
= debugfs_create_file("mdsc",
387 if (!client
->mdsc
.debugfs_file
)
390 client
->osdc
.debugfs_file
= debugfs_create_file("osdc",
395 if (!client
->osdc
.debugfs_file
)
398 client
->debugfs_monmap
= debugfs_create_file("monmap",
403 if (!client
->debugfs_monmap
)
406 client
->debugfs_mdsmap
= debugfs_create_file("mdsmap",
411 if (!client
->debugfs_mdsmap
)
414 client
->debugfs_osdmap
= debugfs_create_file("osdmap",
419 if (!client
->debugfs_osdmap
)
422 client
->debugfs_dentry_lru
= debugfs_create_file("dentry_lru",
426 &dentry_lru_show_fops
);
427 if (!client
->debugfs_dentry_lru
)
430 client
->debugfs_caps
= debugfs_create_file("caps",
435 if (!client
->debugfs_caps
)
438 client
->debugfs_congestion_kb
= debugfs_create_file("writeback_congestion_kb",
442 &congestion_kb_fops
);
443 if (!client
->debugfs_congestion_kb
)
446 sprintf(name
, "../../bdi/%s", dev_name(client
->sb
->s_bdi
->dev
));
447 client
->debugfs_bdi
= debugfs_create_symlink("bdi", client
->debugfs_dir
,
453 ceph_debugfs_client_cleanup(client
);
457 void ceph_debugfs_client_cleanup(struct ceph_client
*client
)
459 debugfs_remove(client
->debugfs_bdi
);
460 debugfs_remove(client
->debugfs_caps
);
461 debugfs_remove(client
->debugfs_dentry_lru
);
462 debugfs_remove(client
->debugfs_osdmap
);
463 debugfs_remove(client
->debugfs_mdsmap
);
464 debugfs_remove(client
->debugfs_monmap
);
465 debugfs_remove(client
->osdc
.debugfs_file
);
466 debugfs_remove(client
->mdsc
.debugfs_file
);
467 debugfs_remove(client
->monc
.debugfs_file
);
468 debugfs_remove(client
->debugfs_congestion_kb
);
469 debugfs_remove(client
->debugfs_dir
);
472 #else // CONFIG_DEBUG_FS
474 int __init
ceph_debugfs_init(void)
479 void ceph_debugfs_cleanup(void)
483 int ceph_debugfs_client_init(struct ceph_client
*client
)
488 void ceph_debugfs_client_cleanup(struct ceph_client
*client
)
492 #endif // CONFIG_DEBUG_FS
This page took 0.042418 seconds and 5 git commands to generate.