1 #include <linux/ceph/ceph_debug.h>
3 #include <linux/device.h>
4 #include <linux/slab.h>
5 #include <linux/module.h>
6 #include <linux/ctype.h>
7 #include <linux/debugfs.h>
8 #include <linux/seq_file.h>
10 #include <linux/ceph/libceph.h>
11 #include <linux/ceph/mon_client.h>
12 #include <linux/ceph/auth.h>
13 #include <linux/ceph/debugfs.h>
17 #ifdef CONFIG_DEBUG_FS
19 #include "mds_client.h"
21 static int mdsmap_show(struct seq_file *s, void *p)
24 struct ceph_fs_client *fsc = s->private;
26 if (fsc->mdsc == NULL || fsc->mdsc->mdsmap == NULL)
28 seq_printf(s, "epoch %d\n", fsc->mdsc->mdsmap->m_epoch);
29 seq_printf(s, "root %d\n", fsc->mdsc->mdsmap->m_root);
30 seq_printf(s, "session_timeout %d\n",
31 fsc->mdsc->mdsmap->m_session_timeout);
32 seq_printf(s, "session_autoclose %d\n",
33 fsc->mdsc->mdsmap->m_session_autoclose);
34 for (i = 0; i < fsc->mdsc->mdsmap->m_max_mds; i++) {
35 struct ceph_entity_addr *addr =
36 &fsc->mdsc->mdsmap->m_info[i].addr;
37 int state = fsc->mdsc->mdsmap->m_info[i].state;
39 seq_printf(s, "\tmds%d\t%s\t(%s)\n", i,
40 ceph_pr_addr(&addr->in_addr),
41 ceph_mds_state_name(state));
49 static int mdsc_show(struct seq_file *s, void *p)
51 struct ceph_fs_client *fsc = s->private;
52 struct ceph_mds_client *mdsc = fsc->mdsc;
53 struct ceph_mds_request *req;
59 mutex_lock(&mdsc->mutex);
60 for (rp = rb_first(&mdsc->request_tree); rp; rp = rb_next(rp)) {
61 req = rb_entry(rp, struct ceph_mds_request, r_node);
64 seq_printf(s, "%lld\tmds%d\t", req->r_tid, req->r_mds);
66 seq_printf(s, "%lld\t(no request)\t", req->r_tid);
68 seq_printf(s, "%s", ceph_mds_op_name(req->r_op));
70 if (req->r_got_unsafe)
71 seq_printf(s, "\t(unsafe)");
76 seq_printf(s, " #%llx", ceph_ino(req->r_inode));
77 } else if (req->r_dentry) {
78 path = ceph_mdsc_build_path(req->r_dentry, &pathlen,
82 spin_lock(&req->r_dentry->d_lock);
83 seq_printf(s, " #%llx/%.*s (%s)",
84 ceph_ino(req->r_dentry->d_parent->d_inode),
85 req->r_dentry->d_name.len,
86 req->r_dentry->d_name.name,
88 spin_unlock(&req->r_dentry->d_lock);
90 } else if (req->r_path1) {
91 seq_printf(s, " #%llx/%s", req->r_ino1.ino,
95 if (req->r_old_dentry) {
96 path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen,
100 spin_lock(&req->r_old_dentry->d_lock);
101 seq_printf(s, " #%llx/%.*s (%s)",
102 ceph_ino(req->r_old_dentry->d_parent->d_inode),
103 req->r_old_dentry->d_name.len,
104 req->r_old_dentry->d_name.name,
106 spin_unlock(&req->r_old_dentry->d_lock);
108 } else if (req->r_path2) {
110 seq_printf(s, " #%llx/%s", req->r_ino2.ino,
113 seq_printf(s, " %s", req->r_path2);
118 mutex_unlock(&mdsc->mutex);
123 static int caps_show(struct seq_file *s, void *p)
125 struct ceph_fs_client *fsc = s->private;
126 int total, avail, used, reserved, min;
128 ceph_reservation_status(fsc, &total, &avail, &used, &reserved, &min);
129 seq_printf(s, "total\t\t%d\n"
134 total, avail, used, reserved, min);
138 static int dentry_lru_show(struct seq_file *s, void *ptr)
140 struct ceph_fs_client *fsc = s->private;
141 struct ceph_mds_client *mdsc = fsc->mdsc;
142 struct ceph_dentry_info *di;
144 spin_lock(&mdsc->dentry_lru_lock);
145 list_for_each_entry(di, &mdsc->dentry_lru, lru) {
146 struct dentry *dentry = di->dentry;
147 seq_printf(s, "%p %p\t%.*s\n",
148 di, dentry, dentry->d_name.len, dentry->d_name.name);
150 spin_unlock(&mdsc->dentry_lru_lock);
155 CEPH_DEFINE_SHOW_FUNC(mdsmap_show)
156 CEPH_DEFINE_SHOW_FUNC(mdsc_show)
157 CEPH_DEFINE_SHOW_FUNC(caps_show)
158 CEPH_DEFINE_SHOW_FUNC(dentry_lru_show)
164 static int congestion_kb_set(void *data, u64 val)
166 struct ceph_fs_client *fsc = (struct ceph_fs_client *)data;
168 fsc->mount_options->congestion_kb = (int)val;
172 static int congestion_kb_get(void *data, u64 *val)
174 struct ceph_fs_client *fsc = (struct ceph_fs_client *)data;
176 *val = (u64)fsc->mount_options->congestion_kb;
180 DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops, congestion_kb_get,
181 congestion_kb_set, "%llu\n");
184 void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc)
186 dout("ceph_fs_debugfs_cleanup\n");
187 debugfs_remove(fsc->debugfs_bdi);
188 debugfs_remove(fsc->debugfs_congestion_kb);
189 debugfs_remove(fsc->debugfs_mdsmap);
190 debugfs_remove(fsc->debugfs_caps);
191 debugfs_remove(fsc->debugfs_mdsc);
192 debugfs_remove(fsc->debugfs_dentry_lru);
195 int ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
200 dout("ceph_fs_debugfs_init\n");
201 fsc->debugfs_congestion_kb =
202 debugfs_create_file("writeback_congestion_kb",
204 fsc->client->debugfs_dir,
206 &congestion_kb_fops);
207 if (!fsc->debugfs_congestion_kb)
212 snprintf(name, sizeof(name), "../../bdi/%s",
213 dev_name(fsc->backing_dev_info.dev));
215 debugfs_create_symlink("bdi",
216 fsc->client->debugfs_dir,
218 if (!fsc->debugfs_bdi)
222 fsc->debugfs_mdsmap = debugfs_create_file("mdsmap",
224 fsc->client->debugfs_dir,
227 if (!fsc->debugfs_mdsmap)
231 fsc->debugfs_mdsc = debugfs_create_file("mdsc",
233 fsc->client->debugfs_dir,
236 if (!fsc->debugfs_mdsc)
240 fsc->debugfs_caps = debugfs_create_file("caps",
242 fsc->client->debugfs_dir,
245 if (!fsc->debugfs_caps)
249 fsc->debugfs_dentry_lru = debugfs_create_file("dentry_lru",
251 fsc->client->debugfs_dir,
253 &dentry_lru_show_fops);
254 if (!fsc->debugfs_dentry_lru)
260 ceph_fs_debugfs_cleanup(fsc);
265 #else /* CONFIG_DEBUG_FS */
267 int ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
272 void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc)
276 #endif /* CONFIG_DEBUG_FS */