1 #include <linux/ceph/ceph_debug.h> 2 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> 9 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> 14 15 #ifdef CONFIG_DEBUG_FS 16 17 /* 18 * Implement /sys/kernel/debug/ceph fun 19 * 20 * /sys/kernel/debug/ceph/client* - an instance of the ceph client 21 * .../osdmap - current osdmap 22 * .../monmap - current monmap 23 * .../osdc - active osd requests 24 * .../monc - mon client state 25 * .../dentry_lru - dump contents of dentry lru 26 * .../caps - expose cap (reservation) stats 27 * .../bdi - symlink to ../../bdi/something 28 */ 29 30 static struct dentry *ceph_debugfs_dir; 31 32 static int monmap_show(struct seq_file *s, void *p) 33 { 34 int i; 35 struct ceph_client *client = s->private; 36 37 if (client->monc.monmap == NULL) 38 return 0; 39 40 seq_printf(s, "epoch %d\n", client->monc.monmap->epoch); 41 for (i = 0; i < client->monc.monmap->num_mon; i++) { 42 struct ceph_entity_inst *inst = 43 &client->monc.monmap->mon_inst[i]; 44 45 seq_printf(s, "\t%s%lld\t%s\n", 46 ENTITY_NAME(inst->name), 47 ceph_pr_addr(&inst->addr.in_addr)); 48 } 49 return 0; 50 } 51 52 static int osdmap_show(struct seq_file *s, void *p) 53 { 54 int i; 55 struct ceph_client *client = s->private; 56 struct ceph_osdmap *map = client->osdc.osdmap; 57 struct rb_node *n; 58 59 if (map == NULL) 60 return 0; 61 62 seq_printf(s, "epoch %d\n", map->epoch); 63 seq_printf(s, "flags%s%s\n", 64 (map->flags & CEPH_OSDMAP_NEARFULL) ? " NEARFULL" : "", 65 (map->flags & CEPH_OSDMAP_FULL) ? " FULL" : ""); 66 67 for (n = rb_first(&map->pg_pools); n; n = rb_next(n)) { 68 struct ceph_pg_pool_info *pool = 69 rb_entry(n, struct ceph_pg_pool_info, node); 70 71 seq_printf(s, "pool %lld pg_num %u (%d) read_tier %lld write_tier %lld\n", 72 pool->id, pool->pg_num, pool->pg_num_mask, 73 pool->read_tier, pool->write_tier); 74 } 75 for (i = 0; i < map->max_osd; i++) { 76 struct ceph_entity_addr *addr = &map->osd_addr[i]; 77 int state = map->osd_state[i]; 78 char sb[64]; 79 80 seq_printf(s, "osd%d\t%s\t%3d%%\t(%s)\t%3d%%\n", 81 i, ceph_pr_addr(&addr->in_addr), 82 ((map->osd_weight[i]*100) >> 16), 83 ceph_osdmap_state_str(sb, sizeof(sb), state), 84 ((ceph_get_primary_affinity(map, i)*100) >> 16)); 85 } 86 for (n = rb_first(&map->pg_temp); n; n = rb_next(n)) { 87 struct ceph_pg_mapping *pg = 88 rb_entry(n, struct ceph_pg_mapping, node); 89 90 seq_printf(s, "pg_temp %llu.%x [", pg->pgid.pool, 91 pg->pgid.seed); 92 for (i = 0; i < pg->pg_temp.len; i++) 93 seq_printf(s, "%s%d", (i == 0 ? "" : ","), 94 pg->pg_temp.osds[i]); 95 seq_printf(s, "]\n"); 96 } 97 for (n = rb_first(&map->primary_temp); n; n = rb_next(n)) { 98 struct ceph_pg_mapping *pg = 99 rb_entry(n, struct ceph_pg_mapping, node); 100 101 seq_printf(s, "primary_temp %llu.%x %d\n", pg->pgid.pool, 102 pg->pgid.seed, pg->primary_temp.osd); 103 } 104 105 return 0; 106 } 107 108 static int monc_show(struct seq_file *s, void *p) 109 { 110 struct ceph_client *client = s->private; 111 struct ceph_mon_generic_request *req; 112 struct ceph_mon_client *monc = &client->monc; 113 struct rb_node *rp; 114 115 mutex_lock(&monc->mutex); 116 117 if (monc->have_mdsmap) 118 seq_printf(s, "have mdsmap %u\n", (unsigned int)monc->have_mdsmap); 119 if (monc->have_osdmap) 120 seq_printf(s, "have osdmap %u\n", (unsigned int)monc->have_osdmap); 121 if (monc->want_next_osdmap) 122 seq_printf(s, "want next osdmap\n"); 123 124 for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) { 125 __u16 op; 126 req = rb_entry(rp, struct ceph_mon_generic_request, node); 127 op = le16_to_cpu(req->request->hdr.type); 128 if (op == CEPH_MSG_STATFS) 129 seq_printf(s, "%llu statfs\n", req->tid); 130 else if (op == CEPH_MSG_POOLOP) 131 seq_printf(s, "%llu poolop\n", req->tid); 132 else if (op == CEPH_MSG_MON_GET_VERSION) 133 seq_printf(s, "%llu mon_get_version", req->tid); 134 else 135 seq_printf(s, "%llu unknown\n", req->tid); 136 } 137 138 mutex_unlock(&monc->mutex); 139 return 0; 140 } 141 142 static int osdc_show(struct seq_file *s, void *pp) 143 { 144 struct ceph_client *client = s->private; 145 struct ceph_osd_client *osdc = &client->osdc; 146 struct rb_node *p; 147 148 mutex_lock(&osdc->request_mutex); 149 for (p = rb_first(&osdc->requests); p; p = rb_next(p)) { 150 struct ceph_osd_request *req; 151 unsigned int i; 152 int opcode; 153 154 req = rb_entry(p, struct ceph_osd_request, r_node); 155 156 seq_printf(s, "%lld\tosd%d\t%lld.%x\t", req->r_tid, 157 req->r_osd ? req->r_osd->o_osd : -1, 158 req->r_pgid.pool, req->r_pgid.seed); 159 160 seq_printf(s, "%.*s", req->r_base_oid.name_len, 161 req->r_base_oid.name); 162 163 if (req->r_reassert_version.epoch) 164 seq_printf(s, "\t%u'%llu", 165 (unsigned int)le32_to_cpu(req->r_reassert_version.epoch), 166 le64_to_cpu(req->r_reassert_version.version)); 167 else 168 seq_printf(s, "\t"); 169 170 for (i = 0; i < req->r_num_ops; i++) { 171 opcode = req->r_ops[i].op; 172 seq_printf(s, "%s%s", (i == 0 ? "\t" : ","), 173 ceph_osd_op_name(opcode)); 174 } 175 176 seq_printf(s, "\n"); 177 } 178 mutex_unlock(&osdc->request_mutex); 179 return 0; 180 } 181 182 CEPH_DEFINE_SHOW_FUNC(monmap_show) 183 CEPH_DEFINE_SHOW_FUNC(osdmap_show) 184 CEPH_DEFINE_SHOW_FUNC(monc_show) 185 CEPH_DEFINE_SHOW_FUNC(osdc_show) 186 187 int ceph_debugfs_init(void) 188 { 189 ceph_debugfs_dir = debugfs_create_dir("ceph", NULL); 190 if (!ceph_debugfs_dir) 191 return -ENOMEM; 192 return 0; 193 } 194 195 void ceph_debugfs_cleanup(void) 196 { 197 debugfs_remove(ceph_debugfs_dir); 198 } 199 200 int ceph_debugfs_client_init(struct ceph_client *client) 201 { 202 int ret = -ENOMEM; 203 char name[80]; 204 205 snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid, 206 client->monc.auth->global_id); 207 208 dout("ceph_debugfs_client_init %p %s\n", client, name); 209 210 BUG_ON(client->debugfs_dir); 211 client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir); 212 if (!client->debugfs_dir) 213 goto out; 214 215 client->monc.debugfs_file = debugfs_create_file("monc", 216 0600, 217 client->debugfs_dir, 218 client, 219 &monc_show_fops); 220 if (!client->monc.debugfs_file) 221 goto out; 222 223 client->osdc.debugfs_file = debugfs_create_file("osdc", 224 0600, 225 client->debugfs_dir, 226 client, 227 &osdc_show_fops); 228 if (!client->osdc.debugfs_file) 229 goto out; 230 231 client->debugfs_monmap = debugfs_create_file("monmap", 232 0600, 233 client->debugfs_dir, 234 client, 235 &monmap_show_fops); 236 if (!client->debugfs_monmap) 237 goto out; 238 239 client->debugfs_osdmap = debugfs_create_file("osdmap", 240 0600, 241 client->debugfs_dir, 242 client, 243 &osdmap_show_fops); 244 if (!client->debugfs_osdmap) 245 goto out; 246 247 return 0; 248 249 out: 250 ceph_debugfs_client_cleanup(client); 251 return ret; 252 } 253 254 void ceph_debugfs_client_cleanup(struct ceph_client *client) 255 { 256 dout("ceph_debugfs_client_cleanup %p\n", client); 257 debugfs_remove(client->debugfs_osdmap); 258 debugfs_remove(client->debugfs_monmap); 259 debugfs_remove(client->osdc.debugfs_file); 260 debugfs_remove(client->monc.debugfs_file); 261 debugfs_remove(client->debugfs_dir); 262 } 263 264 #else /* CONFIG_DEBUG_FS */ 265 266 int ceph_debugfs_init(void) 267 { 268 return 0; 269 } 270 271 void ceph_debugfs_cleanup(void) 272 { 273 } 274 275 int ceph_debugfs_client_init(struct ceph_client *client) 276 { 277 return 0; 278 } 279 280 void ceph_debugfs_client_cleanup(struct ceph_client *client) 281 { 282 } 283 284 #endif /* CONFIG_DEBUG_FS */ 285 286 EXPORT_SYMBOL(ceph_debugfs_init); 287 EXPORT_SYMBOL(ceph_debugfs_cleanup); 288