Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 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 rb_node *n; |
| 57 | |
| 58 | if (client->osdc.osdmap == NULL) |
| 59 | return 0; |
| 60 | seq_printf(s, "epoch %d\n", client->osdc.osdmap->epoch); |
| 61 | seq_printf(s, "flags%s%s\n", |
| 62 | (client->osdc.osdmap->flags & CEPH_OSDMAP_NEARFULL) ? |
| 63 | " NEARFULL" : "", |
| 64 | (client->osdc.osdmap->flags & CEPH_OSDMAP_FULL) ? |
| 65 | " FULL" : ""); |
| 66 | for (n = rb_first(&client->osdc.osdmap->pg_pools); n; n = rb_next(n)) { |
| 67 | struct ceph_pg_pool_info *pool = |
| 68 | rb_entry(n, struct ceph_pg_pool_info, node); |
Sage Weil | 4f6a7e5 | 2013-02-23 10:41:09 -0800 | [diff] [blame] | 69 | seq_printf(s, "pg_pool %llu pg_num %d / %d\n", |
| 70 | (unsigned long long)pool->id, pool->pg_num, |
| 71 | pool->pg_num_mask); |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 72 | } |
| 73 | for (i = 0; i < client->osdc.osdmap->max_osd; i++) { |
| 74 | struct ceph_entity_addr *addr = |
| 75 | &client->osdc.osdmap->osd_addr[i]; |
| 76 | int state = client->osdc.osdmap->osd_state[i]; |
| 77 | char sb[64]; |
| 78 | |
| 79 | seq_printf(s, "\tosd%d\t%s\t%3d%%\t(%s)\n", |
| 80 | i, ceph_pr_addr(&addr->in_addr), |
| 81 | ((client->osdc.osdmap->osd_weight[i]*100) >> 16), |
| 82 | ceph_osdmap_state_str(sb, sizeof(sb), state)); |
| 83 | } |
| 84 | return 0; |
| 85 | } |
| 86 | |
| 87 | static int monc_show(struct seq_file *s, void *p) |
| 88 | { |
| 89 | struct ceph_client *client = s->private; |
| 90 | struct ceph_mon_generic_request *req; |
| 91 | struct ceph_mon_client *monc = &client->monc; |
| 92 | struct rb_node *rp; |
| 93 | |
| 94 | mutex_lock(&monc->mutex); |
| 95 | |
| 96 | if (monc->have_mdsmap) |
Eric Dumazet | 95c9617 | 2012-04-15 05:58:06 +0000 | [diff] [blame] | 97 | seq_printf(s, "have mdsmap %u\n", (unsigned int)monc->have_mdsmap); |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 98 | if (monc->have_osdmap) |
Eric Dumazet | 95c9617 | 2012-04-15 05:58:06 +0000 | [diff] [blame] | 99 | seq_printf(s, "have osdmap %u\n", (unsigned int)monc->have_osdmap); |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 100 | if (monc->want_next_osdmap) |
| 101 | seq_printf(s, "want next osdmap\n"); |
| 102 | |
| 103 | for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) { |
| 104 | __u16 op; |
| 105 | req = rb_entry(rp, struct ceph_mon_generic_request, node); |
| 106 | op = le16_to_cpu(req->request->hdr.type); |
| 107 | if (op == CEPH_MSG_STATFS) |
| 108 | seq_printf(s, "%lld statfs\n", req->tid); |
| 109 | else |
| 110 | seq_printf(s, "%lld unknown\n", req->tid); |
| 111 | } |
| 112 | |
| 113 | mutex_unlock(&monc->mutex); |
| 114 | return 0; |
| 115 | } |
| 116 | |
| 117 | static int osdc_show(struct seq_file *s, void *pp) |
| 118 | { |
| 119 | struct ceph_client *client = s->private; |
| 120 | struct ceph_osd_client *osdc = &client->osdc; |
| 121 | struct rb_node *p; |
| 122 | |
| 123 | mutex_lock(&osdc->request_mutex); |
| 124 | for (p = rb_first(&osdc->requests); p; p = rb_next(p)) { |
| 125 | struct ceph_osd_request *req; |
Alex Elder | 7952873 | 2013-04-03 21:32:51 -0500 | [diff] [blame] | 126 | unsigned int i; |
Sage Weil | 1b83bef | 2013-02-25 16:11:12 -0800 | [diff] [blame] | 127 | int opcode; |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 128 | |
| 129 | req = rb_entry(p, struct ceph_osd_request, r_node); |
| 130 | |
Sage Weil | 5b191d9 | 2013-02-23 10:38:16 -0800 | [diff] [blame] | 131 | seq_printf(s, "%lld\tosd%d\t%lld.%x\t", req->r_tid, |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 132 | req->r_osd ? req->r_osd->o_osd : -1, |
Sage Weil | 5b191d9 | 2013-02-23 10:38:16 -0800 | [diff] [blame] | 133 | req->r_pgid.pool, req->r_pgid.seed); |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 134 | |
Sage Weil | 1b83bef | 2013-02-25 16:11:12 -0800 | [diff] [blame] | 135 | seq_printf(s, "%.*s", req->r_oid_len, req->r_oid); |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 136 | |
| 137 | if (req->r_reassert_version.epoch) |
| 138 | seq_printf(s, "\t%u'%llu", |
Eric Dumazet | 95c9617 | 2012-04-15 05:58:06 +0000 | [diff] [blame] | 139 | (unsigned int)le32_to_cpu(req->r_reassert_version.epoch), |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 140 | le64_to_cpu(req->r_reassert_version.version)); |
| 141 | else |
| 142 | seq_printf(s, "\t"); |
| 143 | |
Sage Weil | 1b83bef | 2013-02-25 16:11:12 -0800 | [diff] [blame] | 144 | for (i = 0; i < req->r_num_ops; i++) { |
Alex Elder | 7952873 | 2013-04-03 21:32:51 -0500 | [diff] [blame] | 145 | opcode = req->r_ops[i].op; |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 146 | seq_printf(s, "\t%s", ceph_osd_op_name(opcode)); |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 147 | } |
| 148 | |
| 149 | seq_printf(s, "\n"); |
| 150 | } |
| 151 | mutex_unlock(&osdc->request_mutex); |
| 152 | return 0; |
| 153 | } |
| 154 | |
| 155 | CEPH_DEFINE_SHOW_FUNC(monmap_show) |
| 156 | CEPH_DEFINE_SHOW_FUNC(osdmap_show) |
| 157 | CEPH_DEFINE_SHOW_FUNC(monc_show) |
| 158 | CEPH_DEFINE_SHOW_FUNC(osdc_show) |
| 159 | |
| 160 | int ceph_debugfs_init(void) |
| 161 | { |
| 162 | ceph_debugfs_dir = debugfs_create_dir("ceph", NULL); |
| 163 | if (!ceph_debugfs_dir) |
| 164 | return -ENOMEM; |
| 165 | return 0; |
| 166 | } |
| 167 | |
| 168 | void ceph_debugfs_cleanup(void) |
| 169 | { |
| 170 | debugfs_remove(ceph_debugfs_dir); |
| 171 | } |
| 172 | |
| 173 | int ceph_debugfs_client_init(struct ceph_client *client) |
| 174 | { |
| 175 | int ret = -ENOMEM; |
| 176 | char name[80]; |
| 177 | |
| 178 | snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid, |
| 179 | client->monc.auth->global_id); |
| 180 | |
Sage Weil | d1c338a | 2012-08-19 12:29:16 -0700 | [diff] [blame] | 181 | dout("ceph_debugfs_client_init %p %s\n", client, name); |
| 182 | |
| 183 | BUG_ON(client->debugfs_dir); |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 184 | client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir); |
| 185 | if (!client->debugfs_dir) |
| 186 | goto out; |
| 187 | |
| 188 | client->monc.debugfs_file = debugfs_create_file("monc", |
| 189 | 0600, |
| 190 | client->debugfs_dir, |
| 191 | client, |
| 192 | &monc_show_fops); |
| 193 | if (!client->monc.debugfs_file) |
| 194 | goto out; |
| 195 | |
| 196 | client->osdc.debugfs_file = debugfs_create_file("osdc", |
| 197 | 0600, |
| 198 | client->debugfs_dir, |
| 199 | client, |
| 200 | &osdc_show_fops); |
| 201 | if (!client->osdc.debugfs_file) |
| 202 | goto out; |
| 203 | |
| 204 | client->debugfs_monmap = debugfs_create_file("monmap", |
| 205 | 0600, |
| 206 | client->debugfs_dir, |
| 207 | client, |
| 208 | &monmap_show_fops); |
| 209 | if (!client->debugfs_monmap) |
| 210 | goto out; |
| 211 | |
| 212 | client->debugfs_osdmap = debugfs_create_file("osdmap", |
| 213 | 0600, |
| 214 | client->debugfs_dir, |
| 215 | client, |
| 216 | &osdmap_show_fops); |
| 217 | if (!client->debugfs_osdmap) |
| 218 | goto out; |
| 219 | |
| 220 | return 0; |
| 221 | |
| 222 | out: |
| 223 | ceph_debugfs_client_cleanup(client); |
| 224 | return ret; |
| 225 | } |
| 226 | |
| 227 | void ceph_debugfs_client_cleanup(struct ceph_client *client) |
| 228 | { |
Sage Weil | d1c338a | 2012-08-19 12:29:16 -0700 | [diff] [blame] | 229 | dout("ceph_debugfs_client_cleanup %p\n", client); |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 230 | debugfs_remove(client->debugfs_osdmap); |
| 231 | debugfs_remove(client->debugfs_monmap); |
| 232 | debugfs_remove(client->osdc.debugfs_file); |
| 233 | debugfs_remove(client->monc.debugfs_file); |
| 234 | debugfs_remove(client->debugfs_dir); |
| 235 | } |
| 236 | |
| 237 | #else /* CONFIG_DEBUG_FS */ |
| 238 | |
| 239 | int ceph_debugfs_init(void) |
| 240 | { |
| 241 | return 0; |
| 242 | } |
| 243 | |
| 244 | void ceph_debugfs_cleanup(void) |
| 245 | { |
| 246 | } |
| 247 | |
Yehuda Sadeh | 602adf4 | 2010-08-12 16:11:25 -0700 | [diff] [blame] | 248 | int ceph_debugfs_client_init(struct ceph_client *client) |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 249 | { |
| 250 | return 0; |
| 251 | } |
| 252 | |
| 253 | void ceph_debugfs_client_cleanup(struct ceph_client *client) |
| 254 | { |
| 255 | } |
| 256 | |
| 257 | #endif /* CONFIG_DEBUG_FS */ |
| 258 | |
| 259 | EXPORT_SYMBOL(ceph_debugfs_init); |
| 260 | EXPORT_SYMBOL(ceph_debugfs_cleanup); |