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_MON_GET_VERSION) 131 seq_printf(s, "%llu mon_get_version", req->tid); 132 else 133 seq_printf(s, "%llu unknown\n", req->tid); 134 } 135 136 mutex_unlock(&monc->mutex); 137 return 0; 138 } 139 140 static int osdc_show(struct seq_file *s, void *pp) 141 { 142 struct ceph_client *client = s->private; 143 struct ceph_osd_client *osdc = &client->osdc; 144 struct rb_node *p; 145 146 mutex_lock(&osdc->request_mutex); 147 for (p = rb_first(&osdc->requests); p; p = rb_next(p)) { 148 struct ceph_osd_request *req; 149 unsigned int i; 150 int opcode; 151 152 req = rb_entry(p, struct ceph_osd_request, r_node); 153 154 seq_printf(s, "%lld\tosd%d\t%lld.%x\t", req->r_tid, 155 req->r_osd ? req->r_osd->o_osd : -1, 156 req->r_pgid.pool, req->r_pgid.seed); 157 158 seq_printf(s, "%.*s", req->r_base_oid.name_len, 159 req->r_base_oid.name); 160 161 if (req->r_reassert_version.epoch) 162 seq_printf(s, "\t%u'%llu", 163 (unsigned int)le32_to_cpu(req->r_reassert_version.epoch), 164 le64_to_cpu(req->r_reassert_version.version)); 165 else 166 seq_printf(s, "\t"); 167 168 for (i = 0; i < req->r_num_ops; i++) { 169 opcode = req->r_ops[i].op; 170 seq_printf(s, "%s%s", (i == 0 ? "\t" : ","), 171 ceph_osd_op_name(opcode)); 172 } 173 174 seq_printf(s, "\n"); 175 } 176 mutex_unlock(&osdc->request_mutex); 177 return 0; 178 } 179 180 CEPH_DEFINE_SHOW_FUNC(monmap_show) 181 CEPH_DEFINE_SHOW_FUNC(osdmap_show) 182 CEPH_DEFINE_SHOW_FUNC(monc_show) 183 CEPH_DEFINE_SHOW_FUNC(osdc_show) 184 185 int ceph_debugfs_init(void) 186 { 187 ceph_debugfs_dir = debugfs_create_dir("ceph", NULL); 188 if (!ceph_debugfs_dir) 189 return -ENOMEM; 190 return 0; 191 } 192 193 void ceph_debugfs_cleanup(void) 194 { 195 debugfs_remove(ceph_debugfs_dir); 196 } 197 198 int ceph_debugfs_client_init(struct ceph_client *client) 199 { 200 int ret = -ENOMEM; 201 char name[80]; 202 203 snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid, 204 client->monc.auth->global_id); 205 206 dout("ceph_debugfs_client_init %p %s\n", client, name); 207 208 BUG_ON(client->debugfs_dir); 209 client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir); 210 if (!client->debugfs_dir) 211 goto out; 212 213 client->monc.debugfs_file = debugfs_create_file("monc", 214 0600, 215 client->debugfs_dir, 216 client, 217 &monc_show_fops); 218 if (!client->monc.debugfs_file) 219 goto out; 220 221 client->osdc.debugfs_file = debugfs_create_file("osdc", 222 0600, 223 client->debugfs_dir, 224 client, 225 &osdc_show_fops); 226 if (!client->osdc.debugfs_file) 227 goto out; 228 229 client->debugfs_monmap = debugfs_create_file("monmap", 230 0600, 231 client->debugfs_dir, 232 client, 233 &monmap_show_fops); 234 if (!client->debugfs_monmap) 235 goto out; 236 237 client->debugfs_osdmap = debugfs_create_file("osdmap", 238 0600, 239 client->debugfs_dir, 240 client, 241 &osdmap_show_fops); 242 if (!client->debugfs_osdmap) 243 goto out; 244 245 return 0; 246 247 out: 248 ceph_debugfs_client_cleanup(client); 249 return ret; 250 } 251 252 void ceph_debugfs_client_cleanup(struct ceph_client *client) 253 { 254 dout("ceph_debugfs_client_cleanup %p\n", client); 255 debugfs_remove(client->debugfs_osdmap); 256 debugfs_remove(client->debugfs_monmap); 257 debugfs_remove(client->osdc.debugfs_file); 258 debugfs_remove(client->monc.debugfs_file); 259 debugfs_remove(client->debugfs_dir); 260 } 261 262 #else /* CONFIG_DEBUG_FS */ 263 264 int ceph_debugfs_init(void) 265 { 266 return 0; 267 } 268 269 void ceph_debugfs_cleanup(void) 270 { 271 } 272 273 int ceph_debugfs_client_init(struct ceph_client *client) 274 { 275 return 0; 276 } 277 278 void ceph_debugfs_client_cleanup(struct ceph_client *client) 279 { 280 } 281 282 #endif /* CONFIG_DEBUG_FS */ 283 284 EXPORT_SYMBOL(ceph_debugfs_init); 285 EXPORT_SYMBOL(ceph_debugfs_cleanup); 286