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);
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)
67 seq_printf(s, "%lld\t(no request)\t", req->r_tid);
69 seq_printf(s, "%lld\t(no session)\t", req->r_tid);
71 seq_printf(s, "%s", ceph_mds_op_name(req->r_op));
73 if (req->r_got_unsafe)
74 seq_puts(s, "\t(unsafe)");
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,
85 spin_lock(&req->r_dentry->d_lock);
86 seq_printf(s, " #%llx/%.*s (%s)",
87 ceph_ino(req->r_dentry->d_parent->d_inode),
88 req->r_dentry->d_name.len,
89 req->r_dentry->d_name.name,
91 spin_unlock(&req->r_dentry->d_lock);
93 } else if (req->r_path1) {
94 seq_printf(s, " #%llx/%s", req->r_ino1.ino,
97 seq_printf(s, " #%llx", req->r_ino1.ino);
100 if (req->r_old_dentry) {
101 path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen,
105 spin_lock(&req->r_old_dentry->d_lock);
106 seq_printf(s, " #%llx/%.*s (%s)",
107 req->r_old_dentry_dir ?
108 ceph_ino(req->r_old_dentry_dir) : 0,
109 req->r_old_dentry->d_name.len,
110 req->r_old_dentry->d_name.name,
112 spin_unlock(&req->r_old_dentry->d_lock);
114 } else if (req->r_path2) {
116 seq_printf(s, " #%llx/%s", req->r_ino2.ino,
119 seq_printf(s, " %s", req->r_path2);
124 mutex_unlock(&mdsc->mutex);
129 static int caps_show(struct seq_file *s, void *p)
131 struct ceph_fs_client *fsc = s->private;
132 int total, avail, used, reserved, min;
134 ceph_reservation_status(fsc, &total, &avail, &used, &reserved, &min);
135 seq_printf(s, "total\t\t%d\n"
140 total, avail, used, reserved, min);
144 static int dentry_lru_show(struct seq_file *s, void *ptr)
146 struct ceph_fs_client *fsc = s->private;
147 struct ceph_mds_client *mdsc = fsc->mdsc;
148 struct ceph_dentry_info *di;
150 spin_lock(&mdsc->dentry_lru_lock);
151 list_for_each_entry(di, &mdsc->dentry_lru, lru) {
152 struct dentry *dentry = di->dentry;
153 seq_printf(s, "%p %p\t%.*s\n",
154 di, dentry, dentry->d_name.len, dentry->d_name.name);
156 spin_unlock(&mdsc->dentry_lru_lock);
161 CEPH_DEFINE_SHOW_FUNC(mdsmap_show)
162 CEPH_DEFINE_SHOW_FUNC(mdsc_show)
163 CEPH_DEFINE_SHOW_FUNC(caps_show)
164 CEPH_DEFINE_SHOW_FUNC(dentry_lru_show)
170 static int congestion_kb_set(void *data, u64 val)
172 struct ceph_fs_client *fsc = (struct ceph_fs_client *)data;
174 fsc->mount_options->congestion_kb = (int)val;
178 static int congestion_kb_get(void *data, u64 *val)
180 struct ceph_fs_client *fsc = (struct ceph_fs_client *)data;
182 *val = (u64)fsc->mount_options->congestion_kb;
186 DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops, congestion_kb_get,
187 congestion_kb_set, "%llu\n");
190 void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc)
192 dout("ceph_fs_debugfs_cleanup\n");
193 debugfs_remove(fsc->debugfs_bdi);
194 debugfs_remove(fsc->debugfs_congestion_kb);
195 debugfs_remove(fsc->debugfs_mdsmap);
196 debugfs_remove(fsc->debugfs_caps);
197 debugfs_remove(fsc->debugfs_mdsc);
198 debugfs_remove(fsc->debugfs_dentry_lru);
201 int ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
206 dout("ceph_fs_debugfs_init\n");
207 BUG_ON(!fsc->client->debugfs_dir);
208 fsc->debugfs_congestion_kb =
209 debugfs_create_file("writeback_congestion_kb",
211 fsc->client->debugfs_dir,
213 &congestion_kb_fops);
214 if (!fsc->debugfs_congestion_kb)
217 snprintf(name, sizeof(name), "../../bdi/%s",
218 dev_name(fsc->backing_dev_info.dev));
220 debugfs_create_symlink("bdi",
221 fsc->client->debugfs_dir,
223 if (!fsc->debugfs_bdi)
226 fsc->debugfs_mdsmap = debugfs_create_file("mdsmap",
228 fsc->client->debugfs_dir,
231 if (!fsc->debugfs_mdsmap)
234 fsc->debugfs_mdsc = debugfs_create_file("mdsc",
236 fsc->client->debugfs_dir,
239 if (!fsc->debugfs_mdsc)
242 fsc->debugfs_caps = debugfs_create_file("caps",
244 fsc->client->debugfs_dir,
247 if (!fsc->debugfs_caps)
250 fsc->debugfs_dentry_lru = debugfs_create_file("dentry_lru",
252 fsc->client->debugfs_dir,
254 &dentry_lru_show_fops);
255 if (!fsc->debugfs_dentry_lru)
261 ceph_fs_debugfs_cleanup(fsc);
266 #else /* CONFIG_DEBUG_FS */
268 int ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
273 void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc)
277 #endif /* CONFIG_DEBUG_FS */