283 lines
6.9 KiB
C
283 lines
6.9 KiB
C
#include <linux/ceph/ceph_debug.h>
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#include <linux/device.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/ctype.h>
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#include <linux/debugfs.h>
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#include <linux/seq_file.h>
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#include <linux/ceph/libceph.h>
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#include <linux/ceph/mon_client.h>
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#include <linux/ceph/auth.h>
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#include <linux/ceph/debugfs.h>
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#ifdef CONFIG_DEBUG_FS
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/*
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* Implement /sys/kernel/debug/ceph fun
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*
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* /sys/kernel/debug/ceph/client* - an instance of the ceph client
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* .../osdmap - current osdmap
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* .../monmap - current monmap
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* .../osdc - active osd requests
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* .../monc - mon client state
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* .../dentry_lru - dump contents of dentry lru
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* .../caps - expose cap (reservation) stats
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* .../bdi - symlink to ../../bdi/something
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*/
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static struct dentry *ceph_debugfs_dir;
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static int monmap_show(struct seq_file *s, void *p)
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{
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int i;
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struct ceph_client *client = s->private;
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if (client->monc.monmap == NULL)
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return 0;
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seq_printf(s, "epoch %d\n", client->monc.monmap->epoch);
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for (i = 0; i < client->monc.monmap->num_mon; i++) {
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struct ceph_entity_inst *inst =
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&client->monc.monmap->mon_inst[i];
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seq_printf(s, "\t%s%lld\t%s\n",
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ENTITY_NAME(inst->name),
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ceph_pr_addr(&inst->addr.in_addr));
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}
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return 0;
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}
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static int osdmap_show(struct seq_file *s, void *p)
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{
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int i;
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struct ceph_client *client = s->private;
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struct ceph_osdmap *map = client->osdc.osdmap;
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struct rb_node *n;
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if (map == NULL)
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return 0;
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seq_printf(s, "epoch %d\n", map->epoch);
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seq_printf(s, "flags%s%s\n",
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(map->flags & CEPH_OSDMAP_NEARFULL) ? " NEARFULL" : "",
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(map->flags & CEPH_OSDMAP_FULL) ? " FULL" : "");
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for (n = rb_first(&map->pg_pools); n; n = rb_next(n)) {
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struct ceph_pg_pool_info *pool =
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rb_entry(n, struct ceph_pg_pool_info, node);
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seq_printf(s, "pool %lld pg_num %u (%d) read_tier %lld write_tier %lld\n",
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pool->id, pool->pg_num, pool->pg_num_mask,
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pool->read_tier, pool->write_tier);
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}
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for (i = 0; i < map->max_osd; i++) {
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struct ceph_entity_addr *addr = &map->osd_addr[i];
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int state = map->osd_state[i];
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char sb[64];
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seq_printf(s, "osd%d\t%s\t%3d%%\t(%s)\t%3d%%\n",
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i, ceph_pr_addr(&addr->in_addr),
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((map->osd_weight[i]*100) >> 16),
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ceph_osdmap_state_str(sb, sizeof(sb), state),
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((ceph_get_primary_affinity(map, i)*100) >> 16));
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}
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for (n = rb_first(&map->pg_temp); n; n = rb_next(n)) {
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struct ceph_pg_mapping *pg =
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rb_entry(n, struct ceph_pg_mapping, node);
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seq_printf(s, "pg_temp %llu.%x [", pg->pgid.pool,
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pg->pgid.seed);
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for (i = 0; i < pg->pg_temp.len; i++)
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seq_printf(s, "%s%d", (i == 0 ? "" : ","),
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pg->pg_temp.osds[i]);
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seq_printf(s, "]\n");
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}
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for (n = rb_first(&map->primary_temp); n; n = rb_next(n)) {
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struct ceph_pg_mapping *pg =
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rb_entry(n, struct ceph_pg_mapping, node);
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seq_printf(s, "primary_temp %llu.%x %d\n", pg->pgid.pool,
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pg->pgid.seed, pg->primary_temp.osd);
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}
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return 0;
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}
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static int monc_show(struct seq_file *s, void *p)
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{
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struct ceph_client *client = s->private;
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struct ceph_mon_generic_request *req;
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struct ceph_mon_client *monc = &client->monc;
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struct rb_node *rp;
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mutex_lock(&monc->mutex);
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if (monc->have_mdsmap)
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seq_printf(s, "have mdsmap %u\n", (unsigned int)monc->have_mdsmap);
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if (monc->have_osdmap)
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seq_printf(s, "have osdmap %u\n", (unsigned int)monc->have_osdmap);
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if (monc->want_next_osdmap)
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seq_printf(s, "want next osdmap\n");
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for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) {
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__u16 op;
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req = rb_entry(rp, struct ceph_mon_generic_request, node);
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op = le16_to_cpu(req->request->hdr.type);
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if (op == CEPH_MSG_STATFS)
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seq_printf(s, "%lld statfs\n", req->tid);
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else
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seq_printf(s, "%lld unknown\n", req->tid);
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}
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mutex_unlock(&monc->mutex);
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return 0;
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}
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static int osdc_show(struct seq_file *s, void *pp)
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{
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struct ceph_client *client = s->private;
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struct ceph_osd_client *osdc = &client->osdc;
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struct rb_node *p;
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mutex_lock(&osdc->request_mutex);
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for (p = rb_first(&osdc->requests); p; p = rb_next(p)) {
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struct ceph_osd_request *req;
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unsigned int i;
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int opcode;
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req = rb_entry(p, struct ceph_osd_request, r_node);
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seq_printf(s, "%lld\tosd%d\t%lld.%x\t", req->r_tid,
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req->r_osd ? req->r_osd->o_osd : -1,
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req->r_pgid.pool, req->r_pgid.seed);
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seq_printf(s, "%.*s", req->r_base_oid.name_len,
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req->r_base_oid.name);
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if (req->r_reassert_version.epoch)
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seq_printf(s, "\t%u'%llu",
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(unsigned int)le32_to_cpu(req->r_reassert_version.epoch),
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le64_to_cpu(req->r_reassert_version.version));
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else
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seq_printf(s, "\t");
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for (i = 0; i < req->r_num_ops; i++) {
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opcode = req->r_ops[i].op;
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seq_printf(s, "\t%s", ceph_osd_op_name(opcode));
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}
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seq_printf(s, "\n");
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}
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mutex_unlock(&osdc->request_mutex);
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return 0;
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}
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CEPH_DEFINE_SHOW_FUNC(monmap_show)
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CEPH_DEFINE_SHOW_FUNC(osdmap_show)
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CEPH_DEFINE_SHOW_FUNC(monc_show)
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CEPH_DEFINE_SHOW_FUNC(osdc_show)
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int ceph_debugfs_init(void)
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{
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ceph_debugfs_dir = debugfs_create_dir("ceph", NULL);
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if (!ceph_debugfs_dir)
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return -ENOMEM;
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return 0;
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}
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void ceph_debugfs_cleanup(void)
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{
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debugfs_remove(ceph_debugfs_dir);
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}
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int ceph_debugfs_client_init(struct ceph_client *client)
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{
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int ret = -ENOMEM;
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char name[80];
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snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid,
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client->monc.auth->global_id);
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dout("ceph_debugfs_client_init %p %s\n", client, name);
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BUG_ON(client->debugfs_dir);
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client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);
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if (!client->debugfs_dir)
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goto out;
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client->monc.debugfs_file = debugfs_create_file("monc",
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0600,
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client->debugfs_dir,
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client,
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&monc_show_fops);
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if (!client->monc.debugfs_file)
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goto out;
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client->osdc.debugfs_file = debugfs_create_file("osdc",
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0600,
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client->debugfs_dir,
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client,
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&osdc_show_fops);
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if (!client->osdc.debugfs_file)
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goto out;
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client->debugfs_monmap = debugfs_create_file("monmap",
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0600,
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client->debugfs_dir,
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client,
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&monmap_show_fops);
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if (!client->debugfs_monmap)
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goto out;
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client->debugfs_osdmap = debugfs_create_file("osdmap",
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0600,
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client->debugfs_dir,
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client,
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&osdmap_show_fops);
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if (!client->debugfs_osdmap)
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goto out;
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return 0;
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out:
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ceph_debugfs_client_cleanup(client);
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return ret;
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}
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void ceph_debugfs_client_cleanup(struct ceph_client *client)
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{
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dout("ceph_debugfs_client_cleanup %p\n", client);
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debugfs_remove(client->debugfs_osdmap);
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debugfs_remove(client->debugfs_monmap);
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debugfs_remove(client->osdc.debugfs_file);
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debugfs_remove(client->monc.debugfs_file);
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debugfs_remove(client->debugfs_dir);
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}
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#else /* CONFIG_DEBUG_FS */
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int ceph_debugfs_init(void)
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{
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return 0;
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}
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void ceph_debugfs_cleanup(void)
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{
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}
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int ceph_debugfs_client_init(struct ceph_client *client)
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{
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return 0;
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}
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void ceph_debugfs_client_cleanup(struct ceph_client *client)
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{
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}
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#endif /* CONFIG_DEBUG_FS */
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EXPORT_SYMBOL(ceph_debugfs_init);
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EXPORT_SYMBOL(ceph_debugfs_cleanup);
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