[deliverable/linux.git] / net / ceph / debugfs.c

#include <linux/ceph/ceph_debug.h>

#include <linux/device.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/ctype.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>

#include <linux/ceph/libceph.h>
#include <linux/ceph/mon_client.h>
#include <linux/ceph/auth.h>
#include <linux/ceph/debugfs.h>

#ifdef CONFIG_DEBUG_FS

/*
 * Implement /sys/kernel/debug/ceph fun
 *
 * /sys/kernel/debug/ceph/client*  - an instance of the ceph client
 *      .../osdmap      - current osdmap
 *      .../monmap      - current monmap
 *      .../osdc        - active osd requests
 *      .../monc        - mon client state
 *      .../dentry_lru  - dump contents of dentry lru
 *      .../caps        - expose cap (reservation) stats
 *      .../bdi         - symlink to ../../bdi/something
 */

static struct dentry *ceph_debugfs_dir;

static int monmap_show(struct seq_file *s, void *p)
{
	int i;
	struct ceph_client *client = s->private;

	if (client->monc.monmap == NULL)
		return 0;

	seq_printf(s, "epoch %d\n", client->monc.monmap->epoch);
	for (i = 0; i < client->monc.monmap->num_mon; i++) {
		struct ceph_entity_inst *inst =
			&client->monc.monmap->mon_inst[i];

		seq_printf(s, "\t%s%lld\t%s\n",
			   ENTITY_NAME(inst->name),
			   ceph_pr_addr(&inst->addr.in_addr));
	}
	return 0;
}

static int osdmap_show(struct seq_file *s, void *p)
{
	int i;
	struct ceph_client *client = s->private;
	struct ceph_osdmap *map = client->osdc.osdmap;
	struct rb_node *n;

	if (map == NULL)
		return 0;

	seq_printf(s, "epoch %d\n", map->epoch);
	seq_printf(s, "flags%s%s\n",
		   (map->flags & CEPH_OSDMAP_NEARFULL) ?  " NEARFULL" : "",
		   (map->flags & CEPH_OSDMAP_FULL) ?  " FULL" : "");

	for (n = rb_first(&map->pg_pools); n; n = rb_next(n)) {
		struct ceph_pg_pool_info *pool =
			rb_entry(n, struct ceph_pg_pool_info, node);

		seq_printf(s, "pool %lld pg_num %u (%d) read_tier %lld write_tier %lld\n",
			   pool->id, pool->pg_num, pool->pg_num_mask,
			   pool->read_tier, pool->write_tier);
	}
	for (i = 0; i < map->max_osd; i++) {
		struct ceph_entity_addr *addr = &map->osd_addr[i];
		int state = map->osd_state[i];
		char sb[64];

		seq_printf(s, "osd%d\t%s\t%3d%%\t(%s)\t%3d%%\n",
			   i, ceph_pr_addr(&addr->in_addr),
			   ((map->osd_weight[i]*100) >> 16),
			   ceph_osdmap_state_str(sb, sizeof(sb), state),
			   ((ceph_get_primary_affinity(map, i)*100) >> 16));
	}
	for (n = rb_first(&map->pg_temp); n; n = rb_next(n)) {
		struct ceph_pg_mapping *pg =
			rb_entry(n, struct ceph_pg_mapping, node);

		seq_printf(s, "pg_temp %llu.%x [", pg->pgid.pool,
			   pg->pgid.seed);
		for (i = 0; i < pg->pg_temp.len; i++)
			seq_printf(s, "%s%d", (i == 0 ? "" : ","),
				   pg->pg_temp.osds[i]);
		seq_printf(s, "]\n");
	}
	for (n = rb_first(&map->primary_temp); n; n = rb_next(n)) {
		struct ceph_pg_mapping *pg =
			rb_entry(n, struct ceph_pg_mapping, node);

		seq_printf(s, "primary_temp %llu.%x %d\n", pg->pgid.pool,
			   pg->pgid.seed, pg->primary_temp.osd);
	}

	return 0;
}

static int monc_show(struct seq_file *s, void *p)
{
	struct ceph_client *client = s->private;
	struct ceph_mon_generic_request *req;
	struct ceph_mon_client *monc = &client->monc;
	struct rb_node *rp;

	mutex_lock(&monc->mutex);

	if (monc->have_mdsmap)
		seq_printf(s, "have mdsmap %u\n", (unsigned int)monc->have_mdsmap);
	if (monc->have_osdmap)
		seq_printf(s, "have osdmap %u\n", (unsigned int)monc->have_osdmap);
	if (monc->want_next_osdmap)
		seq_printf(s, "want next osdmap\n");

	for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) {
		__u16 op;
		req = rb_entry(rp, struct ceph_mon_generic_request, node);
		op = le16_to_cpu(req->request->hdr.type);
		if (op == CEPH_MSG_STATFS)
			seq_printf(s, "%llu statfs\n", req->tid);
		else if (op == CEPH_MSG_POOLOP)
			seq_printf(s, "%llu poolop\n", req->tid);
		else if (op == CEPH_MSG_MON_GET_VERSION)
			seq_printf(s, "%llu mon_get_version", req->tid);
		else
			seq_printf(s, "%llu unknown\n", req->tid);
	}

	mutex_unlock(&monc->mutex);
	return 0;
}

static int osdc_show(struct seq_file *s, void *pp)
{
	struct ceph_client *client = s->private;
	struct ceph_osd_client *osdc = &client->osdc;
	struct rb_node *p;

	mutex_lock(&osdc->request_mutex);
	for (p = rb_first(&osdc->requests); p; p = rb_next(p)) {
		struct ceph_osd_request *req;
		unsigned int i;
		int opcode;

		req = rb_entry(p, struct ceph_osd_request, r_node);

		seq_printf(s, "%lld\tosd%d\t%lld.%x\t", req->r_tid,
			   req->r_osd ? req->r_osd->o_osd : -1,
			   req->r_pgid.pool, req->r_pgid.seed);

		seq_printf(s, "%.*s", req->r_base_oid.name_len,
			   req->r_base_oid.name);

		if (req->r_reassert_version.epoch)
			seq_printf(s, "\t%u'%llu",
			   (unsigned int)le32_to_cpu(req->r_reassert_version.epoch),
			   le64_to_cpu(req->r_reassert_version.version));
		else
			seq_printf(s, "\t");

		for (i = 0; i < req->r_num_ops; i++) {
			opcode = req->r_ops[i].op;
			seq_printf(s, "\t%s", ceph_osd_op_name(opcode));
		}

		seq_printf(s, "\n");
	}
	mutex_unlock(&osdc->request_mutex);
	return 0;
}

CEPH_DEFINE_SHOW_FUNC(monmap_show)
CEPH_DEFINE_SHOW_FUNC(osdmap_show)
CEPH_DEFINE_SHOW_FUNC(monc_show)
CEPH_DEFINE_SHOW_FUNC(osdc_show)

int ceph_debugfs_init(void)
{
	ceph_debugfs_dir = debugfs_create_dir("ceph", NULL);
	if (!ceph_debugfs_dir)
		return -ENOMEM;
	return 0;
}

void ceph_debugfs_cleanup(void)
{
	debugfs_remove(ceph_debugfs_dir);
}

int ceph_debugfs_client_init(struct ceph_client *client)
{
	int ret = -ENOMEM;
	char name[80];

	snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid,
		 client->monc.auth->global_id);

	dout("ceph_debugfs_client_init %p %s\n", client, name);

	BUG_ON(client->debugfs_dir);
	client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);
	if (!client->debugfs_dir)
		goto out;

	client->monc.debugfs_file = debugfs_create_file("monc",
						      0600,
						      client->debugfs_dir,
						      client,
						      &monc_show_fops);
	if (!client->monc.debugfs_file)
		goto out;

	client->osdc.debugfs_file = debugfs_create_file("osdc",
						      0600,
						      client->debugfs_dir,
						      client,
						      &osdc_show_fops);
	if (!client->osdc.debugfs_file)
		goto out;

	client->debugfs_monmap = debugfs_create_file("monmap",
					0600,
					client->debugfs_dir,
					client,
					&monmap_show_fops);
	if (!client->debugfs_monmap)
		goto out;

	client->debugfs_osdmap = debugfs_create_file("osdmap",
					0600,
					client->debugfs_dir,
					client,
					&osdmap_show_fops);
	if (!client->debugfs_osdmap)
		goto out;

	return 0;

out:
	ceph_debugfs_client_cleanup(client);
	return ret;
}

void ceph_debugfs_client_cleanup(struct ceph_client *client)
{
	dout("ceph_debugfs_client_cleanup %p\n", client);
	debugfs_remove(client->debugfs_osdmap);
	debugfs_remove(client->debugfs_monmap);
	debugfs_remove(client->osdc.debugfs_file);
	debugfs_remove(client->monc.debugfs_file);
	debugfs_remove(client->debugfs_dir);
}

#else  /* CONFIG_DEBUG_FS */

int ceph_debugfs_init(void)
{
	return 0;
}

void ceph_debugfs_cleanup(void)
{
}

int ceph_debugfs_client_init(struct ceph_client *client)
{
	return 0;
}

void ceph_debugfs_client_cleanup(struct ceph_client *client)
{
}

#endif  /* CONFIG_DEBUG_FS */

EXPORT_SYMBOL(ceph_debugfs_init);
EXPORT_SYMBOL(ceph_debugfs_cleanup);
Commit	Line	Data
3d14c5d2 YS	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;
35fea3a1	56	struct ceph_osdmap *map = client->osdc.osdmap;
3d14c5d2 YS	57	struct rb_node *n;
3d14c5d2 YS	58
35fea3a1	59	if (map == NULL)
3d14c5d2	60	return 0;
35fea3a1 ID	61
35fea3a1 ID	62	seq_printf(s, "epoch %d\n", map->epoch);
3d14c5d2	63	seq_printf(s, "flags%s%s\n",
35fea3a1 ID	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)) {
3d14c5d2 YS	68	struct ceph_pg_pool_info *pool =
3d14c5d2 YS	69	rb_entry(n, struct ceph_pg_pool_info, node);
35fea3a1	70
8a53f23f ID	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);
3d14c5d2	74	}
35fea3a1 ID	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];
3d14c5d2 YS	78	char sb[64];
3d14c5d2 YS	79
2cfa34f2	80	seq_printf(s, "osd%d\t%s\t%3d%%\t(%s)\t%3d%%\n",
3d14c5d2	81	i, ceph_pr_addr(&addr->in_addr),
35fea3a1	82	((map->osd_weight[i]*100) >> 16),
2cfa34f2 ID	83	ceph_osdmap_state_str(sb, sizeof(sb), state),
2cfa34f2 ID	84	((ceph_get_primary_affinity(map, i)*100) >> 16));
3d14c5d2	85	}
1c00240e ID	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);
35a935d7	92	for (i = 0; i < pg->pg_temp.len; i++)
1c00240e	93	seq_printf(s, "%s%d", (i == 0 ? "" : ","),
35a935d7	94	pg->pg_temp.osds[i]);
1c00240e ID	95	seq_printf(s, "]\n");
1c00240e ID	96	}
9686f94c ID	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	}
35fea3a1	104
3d14c5d2 YS	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)
95c96174	118	seq_printf(s, "have mdsmap %u\n", (unsigned int)monc->have_mdsmap);
3d14c5d2	119	if (monc->have_osdmap)
95c96174	120	seq_printf(s, "have osdmap %u\n", (unsigned int)monc->have_osdmap);
3d14c5d2 YS	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)
002b36ba ID	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);
513a8243 ID	132	else if (op == CEPH_MSG_MON_GET_VERSION)
513a8243 ID	133	seq_printf(s, "%llu mon_get_version", req->tid);
3d14c5d2	134	else
002b36ba	135	seq_printf(s, "%llu unknown\n", req->tid);
3d14c5d2 YS	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;
79528734	151	unsigned int i;
1b83bef2	152	int opcode;
3d14c5d2 YS	153
	154	req = rb_entry(p, struct ceph_osd_request, r_node);
	155
5b191d99	156	seq_printf(s, "%lld\tosd%d\t%lld.%x\t", req->r_tid,
3d14c5d2	157	req->r_osd ? req->r_osd->o_osd : -1,
5b191d99	158	req->r_pgid.pool, req->r_pgid.seed);
3d14c5d2	159
3c972c95 ID	160	seq_printf(s, "%.*s", req->r_base_oid.name_len,
3c972c95 ID	161	req->r_base_oid.name);
3d14c5d2 YS	162
	163	if (req->r_reassert_version.epoch)
	164	seq_printf(s, "\t%u'%llu",
95c96174	165	(unsigned int)le32_to_cpu(req->r_reassert_version.epoch),
3d14c5d2 YS	166	le64_to_cpu(req->r_reassert_version.version));
	167	else
	168	seq_printf(s, "\t");
	169
1b83bef2	170	for (i = 0; i < req->r_num_ops; i++) {
79528734	171	opcode = req->r_ops[i].op;
3d14c5d2	172	seq_printf(s, "\t%s", ceph_osd_op_name(opcode));
3d14c5d2 YS	173	}
	174
	175	seq_printf(s, "\n");
	176	}
	177	mutex_unlock(&osdc->request_mutex);
	178	return 0;
	179	}
	180
	181	CEPH_DEFINE_SHOW_FUNC(monmap_show)
	182	CEPH_DEFINE_SHOW_FUNC(osdmap_show)
	183	CEPH_DEFINE_SHOW_FUNC(monc_show)
	184	CEPH_DEFINE_SHOW_FUNC(osdc_show)
	185
	186	int ceph_debugfs_init(void)
	187	{
	188	ceph_debugfs_dir = debugfs_create_dir("ceph", NULL);
	189	if (!ceph_debugfs_dir)
	190	return -ENOMEM;
	191	return 0;
	192	}
	193
	194	void ceph_debugfs_cleanup(void)
	195	{
	196	debugfs_remove(ceph_debugfs_dir);
	197	}
	198
	199	int ceph_debugfs_client_init(struct ceph_client *client)
	200	{
	201	int ret = -ENOMEM;
	202	char name[80];
	203
	204	snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid,
	205	client->monc.auth->global_id);
	206
d1c338a5 SW	207	dout("ceph_debugfs_client_init %p %s\n", client, name);
	208
	209	BUG_ON(client->debugfs_dir);
3d14c5d2 YS	210	client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);
	211	if (!client->debugfs_dir)
	212	goto out;
	213
	214	client->monc.debugfs_file = debugfs_create_file("monc",
	215	0600,
	216	client->debugfs_dir,
	217	client,
	218	&monc_show_fops);
	219	if (!client->monc.debugfs_file)
	220	goto out;
	221
	222	client->osdc.debugfs_file = debugfs_create_file("osdc",
	223	0600,
	224	client->debugfs_dir,
	225	client,
	226	&osdc_show_fops);
	227	if (!client->osdc.debugfs_file)
	228	goto out;
	229
	230	client->debugfs_monmap = debugfs_create_file("monmap",
	231	0600,
	232	client->debugfs_dir,
	233	client,
	234	&monmap_show_fops);
	235	if (!client->debugfs_monmap)
	236	goto out;
	237
	238	client->debugfs_osdmap = debugfs_create_file("osdmap",
	239	0600,
	240	client->debugfs_dir,
	241	client,
	242	&osdmap_show_fops);
	243	if (!client->debugfs_osdmap)
	244	goto out;
	245
	246	return 0;
	247
	248	out:
	249	ceph_debugfs_client_cleanup(client);
	250	return ret;
	251	}
	252
	253	void ceph_debugfs_client_cleanup(struct ceph_client *client)
	254	{
d1c338a5	255	dout("ceph_debugfs_client_cleanup %p\n", client);
3d14c5d2 YS	256	debugfs_remove(client->debugfs_osdmap);
	257	debugfs_remove(client->debugfs_monmap);
	258	debugfs_remove(client->osdc.debugfs_file);
	259	debugfs_remove(client->monc.debugfs_file);
	260	debugfs_remove(client->debugfs_dir);
	261	}
	262
	263	#else /* CONFIG_DEBUG_FS */
	264
	265	int ceph_debugfs_init(void)
	266	{
	267	return 0;
	268	}
	269
	270	void ceph_debugfs_cleanup(void)
	271	{
	272	}
	273
602adf40	274	int ceph_debugfs_client_init(struct ceph_client *client)
3d14c5d2 YS	275	{
	276	return 0;
	277	}
	278
	279	void ceph_debugfs_client_cleanup(struct ceph_client *client)
	280	{
	281	}
	282
	283	#endif /* CONFIG_DEBUG_FS */
	284
	285	EXPORT_SYMBOL(ceph_debugfs_init);
	286	EXPORT_SYMBOL(ceph_debugfs_cleanup);