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
;
115 struct ceph_mon_client
*monc
= &client
->monc
;
118 mutex_lock(&monc
->mutex
);
120 if (monc
->have_mdsmap
)
121 seq_printf(s
, "have mdsmap %u\n", (unsigned)monc
->have_mdsmap
);
122 if (monc
->have_osdmap
)
123 seq_printf(s
, "have osdmap %u\n", (unsigned)monc
->have_osdmap
);
124 if (monc
->want_next_osdmap
)
125 seq_printf(s
, "want next osdmap\n");
127 for (rp
= rb_first(&monc
->statfs_request_tree
); rp
; rp
= rb_next(rp
)) {
128 req
= rb_entry(rp
, struct ceph_mon_statfs_request
, node
);
129 seq_printf(s
, "%lld statfs\n", req
->tid
);
132 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_client
*mdsc
= &client
->mdsc
;
140 struct ceph_mds_request
*req
;
146 mutex_lock(&mdsc
->mutex
);
147 for (rp
= rb_first(&mdsc
->request_tree
); rp
; rp
= rb_next(rp
)) {
148 req
= rb_entry(rp
, struct ceph_mds_request
, r_node
);
151 seq_printf(s
, "%lld\tmds%d\t", req
->r_tid
, req
->r_mds
);
153 seq_printf(s
, "%lld\t(no request)\t", req
->r_tid
);
155 seq_printf(s
, "%s", ceph_mds_op_name(req
->r_op
));
157 if (req
->r_got_unsafe
)
158 seq_printf(s
, "\t(unsafe)");
163 seq_printf(s
, " #%llx", ceph_ino(req
->r_inode
));
164 } else if (req
->r_dentry
) {
165 path
= ceph_mdsc_build_path(req
->r_dentry
, &pathlen
,
167 spin_lock(&req
->r_dentry
->d_lock
);
168 seq_printf(s
, " #%llx/%.*s (%s)",
169 ceph_ino(req
->r_dentry
->d_parent
->d_inode
),
170 req
->r_dentry
->d_name
.len
,
171 req
->r_dentry
->d_name
.name
,
173 spin_unlock(&req
->r_dentry
->d_lock
);
175 } else if (req
->r_path1
) {
176 seq_printf(s
, " #%llx/%s", req
->r_ino1
.ino
,
180 if (req
->r_old_dentry
) {
181 path
= ceph_mdsc_build_path(req
->r_old_dentry
, &pathlen
,
183 spin_lock(&req
->r_old_dentry
->d_lock
);
184 seq_printf(s
, " #%llx/%.*s (%s)",
185 ceph_ino(req
->r_old_dentry
->d_parent
->d_inode
),
186 req
->r_old_dentry
->d_name
.len
,
187 req
->r_old_dentry
->d_name
.name
,
189 spin_unlock(&req
->r_old_dentry
->d_lock
);
191 } else if (req
->r_path2
) {
193 seq_printf(s
, " #%llx/%s", req
->r_ino2
.ino
,
196 seq_printf(s
, " %s", req
->r_path2
);
201 mutex_unlock(&mdsc
->mutex
);
206 static int osdc_show(struct seq_file
*s
, void *pp
)
208 struct ceph_client
*client
= s
->private;
209 struct ceph_osd_client
*osdc
= &client
->osdc
;
212 mutex_lock(&osdc
->request_mutex
);
213 for (p
= rb_first(&osdc
->requests
); p
; p
= rb_next(p
)) {
214 struct ceph_osd_request
*req
;
215 struct ceph_osd_request_head
*head
;
216 struct ceph_osd_op
*op
;
221 req
= rb_entry(p
, struct ceph_osd_request
, r_node
);
223 seq_printf(s
, "%lld\tosd%d\t%d.%x\t", req
->r_tid
,
224 req
->r_osd
? req
->r_osd
->o_osd
: -1,
225 le32_to_cpu(req
->r_pgid
.pool
),
226 le16_to_cpu(req
->r_pgid
.ps
));
228 head
= req
->r_request
->front
.iov_base
;
229 op
= (void *)(head
+ 1);
231 num_ops
= le16_to_cpu(head
->num_ops
);
232 olen
= le32_to_cpu(head
->object_len
);
233 seq_printf(s
, "%.*s", olen
,
234 (const char *)(head
->ops
+ num_ops
));
236 if (req
->r_reassert_version
.epoch
)
237 seq_printf(s
, "\t%u'%llu",
238 (unsigned)le32_to_cpu(req
->r_reassert_version
.epoch
),
239 le64_to_cpu(req
->r_reassert_version
.version
));
243 for (i
= 0; i
< num_ops
; i
++) {
244 opcode
= le16_to_cpu(op
->op
);
245 seq_printf(s
, "\t%s", ceph_osd_op_name(opcode
));
251 mutex_unlock(&osdc
->request_mutex
);
255 static int caps_show(struct seq_file
*s
, void *p
)
257 struct ceph_client
*client
= p
;
258 int total
, avail
, used
, reserved
;
260 ceph_reservation_status(client
, &total
, &avail
, &used
, &reserved
);
261 seq_printf(s
, "total\t\t%d\n"
265 total
, avail
, used
, reserved
);
269 static int dentry_lru_show(struct seq_file
*s
, void *ptr
)
271 struct ceph_client
*client
= s
->private;
272 struct ceph_mds_client
*mdsc
= &client
->mdsc
;
273 struct ceph_dentry_info
*di
;
275 spin_lock(&mdsc
->dentry_lru_lock
);
276 list_for_each_entry(di
, &mdsc
->dentry_lru
, lru
) {
277 struct dentry
*dentry
= di
->dentry
;
278 seq_printf(s
, "%p %p\t%.*s\n",
279 di
, dentry
, dentry
->d_name
.len
, dentry
->d_name
.name
);
281 spin_unlock(&mdsc
->dentry_lru_lock
);
286 #define DEFINE_SHOW_FUNC(name) \
287 static int name##_open(struct inode *inode, struct file *file) \
289 struct seq_file *sf; \
292 ret = single_open(file, name, NULL); \
293 sf = file->private_data; \
294 sf->private = inode->i_private; \
298 static const struct file_operations name##_fops = { \
299 .open = name##_open, \
301 .llseek = seq_lseek, \
302 .release = single_release, \
305 DEFINE_SHOW_FUNC(monmap_show
)
306 DEFINE_SHOW_FUNC(mdsmap_show
)
307 DEFINE_SHOW_FUNC(osdmap_show
)
308 DEFINE_SHOW_FUNC(monc_show
)
309 DEFINE_SHOW_FUNC(mdsc_show
)
310 DEFINE_SHOW_FUNC(osdc_show
)
311 DEFINE_SHOW_FUNC(dentry_lru_show
)
312 DEFINE_SHOW_FUNC(caps_show
)
314 static int congestion_kb_set(void *data
, u64 val
)
316 struct ceph_client
*client
= (struct ceph_client
*)data
;
319 client
->mount_args
->congestion_kb
= (int)val
;
324 static int congestion_kb_get(void *data
, u64
*val
)
326 struct ceph_client
*client
= (struct ceph_client
*)data
;
329 *val
= (u64
)client
->mount_args
->congestion_kb
;
335 DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops
, congestion_kb_get
,
336 congestion_kb_set
, "%llu\n");
338 int __init
ceph_debugfs_init(void)
340 ceph_debugfs_dir
= debugfs_create_dir("ceph", NULL
);
341 if (!ceph_debugfs_dir
)
346 void ceph_debugfs_cleanup(void)
348 debugfs_remove(ceph_debugfs_dir
);
351 int ceph_debugfs_client_init(struct ceph_client
*client
)
356 snprintf(name
, sizeof(name
), FSID_FORMAT
".client%lld",
357 PR_FSID(&client
->fsid
), client
->monc
.auth
->global_id
);
359 client
->debugfs_dir
= debugfs_create_dir(name
, ceph_debugfs_dir
);
360 if (!client
->debugfs_dir
)
363 client
->monc
.debugfs_file
= debugfs_create_file("monc",
368 if (!client
->monc
.debugfs_file
)
371 client
->mdsc
.debugfs_file
= debugfs_create_file("mdsc",
376 if (!client
->mdsc
.debugfs_file
)
379 client
->osdc
.debugfs_file
= debugfs_create_file("osdc",
384 if (!client
->osdc
.debugfs_file
)
387 client
->debugfs_monmap
= debugfs_create_file("monmap",
392 if (!client
->debugfs_monmap
)
395 client
->debugfs_mdsmap
= debugfs_create_file("mdsmap",
400 if (!client
->debugfs_mdsmap
)
403 client
->debugfs_osdmap
= debugfs_create_file("osdmap",
408 if (!client
->debugfs_osdmap
)
411 client
->debugfs_dentry_lru
= debugfs_create_file("dentry_lru",
415 &dentry_lru_show_fops
);
416 if (!client
->debugfs_dentry_lru
)
419 client
->debugfs_caps
= debugfs_create_file("caps",
424 if (!client
->debugfs_caps
)
427 client
->debugfs_congestion_kb
= debugfs_create_file("writeback_congestion_kb",
431 &congestion_kb_fops
);
432 if (!client
->debugfs_congestion_kb
)
435 sprintf(name
, "../../bdi/%s", dev_name(client
->sb
->s_bdi
->dev
));
436 client
->debugfs_bdi
= debugfs_create_symlink("bdi", client
->debugfs_dir
,
442 ceph_debugfs_client_cleanup(client
);
446 void ceph_debugfs_client_cleanup(struct ceph_client
*client
)
448 debugfs_remove(client
->debugfs_bdi
);
449 debugfs_remove(client
->debugfs_caps
);
450 debugfs_remove(client
->debugfs_dentry_lru
);
451 debugfs_remove(client
->debugfs_osdmap
);
452 debugfs_remove(client
->debugfs_mdsmap
);
453 debugfs_remove(client
->debugfs_monmap
);
454 debugfs_remove(client
->osdc
.debugfs_file
);
455 debugfs_remove(client
->mdsc
.debugfs_file
);
456 debugfs_remove(client
->monc
.debugfs_file
);
457 debugfs_remove(client
->debugfs_congestion_kb
);
458 debugfs_remove(client
->debugfs_dir
);
461 #else // CONFIG_DEBUG_FS
463 int __init
ceph_debugfs_init(void)
468 void ceph_debugfs_cleanup(void)
472 int ceph_debugfs_client_init(struct ceph_client
*client
)
477 void ceph_debugfs_client_cleanup(struct ceph_client
*client
)
481 #endif // CONFIG_DEBUG_FS
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