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

#include "ceph_debug.h"

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

#include "super.h"
#include "mds_client.h"
#include "mon_client.h"
#include "auth.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
 *      .../mdsmap      - current mdsmap
 *      .../monmap      - current monmap
 *      .../osdc        - active osd requests
 *      .../mdsc        - active mds 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),
			   pr_addr(&inst->addr.in_addr));
	}
	return 0;
}

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

	if (client->mdsc.mdsmap == NULL)
		return 0;
	seq_printf(s, "epoch %d\n", client->mdsc.mdsmap->m_epoch);
	seq_printf(s, "root %d\n", client->mdsc.mdsmap->m_root);
	seq_printf(s, "session_timeout %d\n",
		       client->mdsc.mdsmap->m_session_timeout);
	seq_printf(s, "session_autoclose %d\n",
		       client->mdsc.mdsmap->m_session_autoclose);
	for (i = 0; i < client->mdsc.mdsmap->m_max_mds; i++) {
		struct ceph_entity_addr *addr =
			&client->mdsc.mdsmap->m_info[i].addr;
		int state = client->mdsc.mdsmap->m_info[i].state;

		seq_printf(s, "\tmds%d\t%s\t(%s)\n", i, pr_addr(&addr->in_addr),
			       ceph_mds_state_name(state));
	}
	return 0;
}

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

	if (client->osdc.osdmap == NULL)
		return 0;
	seq_printf(s, "epoch %d\n", client->osdc.osdmap->epoch);
	seq_printf(s, "flags%s%s\n",
		   (client->osdc.osdmap->flags & CEPH_OSDMAP_NEARFULL) ?
		   " NEARFULL" : "",
		   (client->osdc.osdmap->flags & CEPH_OSDMAP_FULL) ?
		   " FULL" : "");
	for (i = 0; i < client->osdc.osdmap->num_pools; i++) {
		struct ceph_pg_pool_info *pool =
			&client->osdc.osdmap->pg_pool[i];
		seq_printf(s, "pg_pool %d pg_num %d / %d, lpg_num %d / %d\n",
			   i, pool->v.pg_num, pool->pg_num_mask,
			   pool->v.lpg_num, pool->lpg_num_mask);
	}
	for (i = 0; i < client->osdc.osdmap->max_osd; i++) {
		struct ceph_entity_addr *addr =
			&client->osdc.osdmap->osd_addr[i];
		int state = client->osdc.osdmap->osd_state[i];
		char sb[64];

		seq_printf(s, "\tosd%d\t%s\t%3d%%\t(%s)\n",
			   i, pr_addr(&addr->in_addr),
			   ((client->osdc.osdmap->osd_weight[i]*100) >> 16),
			   ceph_osdmap_state_str(sb, sizeof(sb), state));
	}
	return 0;
}

static int monc_show(struct seq_file *s, void *p)
{
	struct ceph_client *client = s->private;
	struct ceph_mon_statfs_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)monc->have_mdsmap);
	if (monc->have_osdmap)
		seq_printf(s, "have osdmap %u\n", (unsigned)monc->have_osdmap);
	if (monc->want_next_osdmap)
		seq_printf(s, "want next osdmap\n");

	for (rp = rb_first(&monc->statfs_request_tree); rp; rp = rb_next(rp)) {
		req = rb_entry(rp, struct ceph_mon_statfs_request, node);
		seq_printf(s, "%lld statfs\n", req->tid);
	}

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

static int mdsc_show(struct seq_file *s, void *p)
{
	struct ceph_client *client = s->private;
	struct ceph_mds_client *mdsc = &client->mdsc;
	struct ceph_mds_request *req;
	struct rb_node *rp;
	int pathlen;
	u64 pathbase;
	char *path;

	mutex_lock(&mdsc->mutex);
	for (rp = rb_first(&mdsc->request_tree); rp; rp = rb_next(rp)) {
		req = rb_entry(rp, struct ceph_mds_request, r_node);

		if (req->r_request)
			seq_printf(s, "%lld\tmds%d\t", req->r_tid, req->r_mds);
		else
			seq_printf(s, "%lld\t(no request)\t", req->r_tid);

		seq_printf(s, "%s", ceph_mds_op_name(req->r_op));

		if (req->r_got_unsafe)
			seq_printf(s, "\t(unsafe)");
		else
			seq_printf(s, "\t");

		if (req->r_inode) {
			seq_printf(s, " #%llx", ceph_ino(req->r_inode));
		} else if (req->r_dentry) {
			path = ceph_mdsc_build_path(req->r_dentry, &pathlen,
						    &pathbase, 0);
			spin_lock(&req->r_dentry->d_lock);
			seq_printf(s, " #%llx/%.*s (%s)",
				   ceph_ino(req->r_dentry->d_parent->d_inode),
				   req->r_dentry->d_name.len,
				   req->r_dentry->d_name.name,
				   path ? path : "");
			spin_unlock(&req->r_dentry->d_lock);
			kfree(path);
		} else if (req->r_path1) {
			seq_printf(s, " #%llx/%s", req->r_ino1.ino,
				   req->r_path1);
		}

		if (req->r_old_dentry) {
			path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen,
						    &pathbase, 0);
			spin_lock(&req->r_old_dentry->d_lock);
			seq_printf(s, " #%llx/%.*s (%s)",
			   ceph_ino(req->r_old_dentry->d_parent->d_inode),
				   req->r_old_dentry->d_name.len,
				   req->r_old_dentry->d_name.name,
				   path ? path : "");
			spin_unlock(&req->r_old_dentry->d_lock);
			kfree(path);
		} else if (req->r_path2) {
			if (req->r_ino2.ino)
				seq_printf(s, " #%llx/%s", req->r_ino2.ino,
					   req->r_path2);
			else
				seq_printf(s, " %s", req->r_path2);
		}

		seq_printf(s, "\n");
	}
	mutex_unlock(&mdsc->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;
		struct ceph_osd_request_head *head;
		struct ceph_osd_op *op;
		int num_ops;
		int opcode, olen;
		int i;

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

		seq_printf(s, "%lld\tosd%d\t%d.%x\t", req->r_tid,
			   req->r_osd ? req->r_osd->o_osd : -1,
			   le32_to_cpu(req->r_pgid.pool),
			   le16_to_cpu(req->r_pgid.ps));

		head = req->r_request->front.iov_base;
		op = (void *)(head + 1);

		num_ops = le16_to_cpu(head->num_ops);
		olen = le32_to_cpu(head->object_len);
		seq_printf(s, "%.*s", olen,
			   (const char *)(head->ops + num_ops));

		if (req->r_reassert_version.epoch)
			seq_printf(s, "\t%u'%llu",
			   (unsigned)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 < num_ops; i++) {
			opcode = le16_to_cpu(op->op);
			seq_printf(s, "\t%s", ceph_osd_op_name(opcode));
			op++;
		}

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

static int caps_show(struct seq_file *s, void *p)
{
	struct ceph_client *client = p;
	int total, avail, used, reserved;

	ceph_reservation_status(client, &total, &avail, &used, &reserved);
	seq_printf(s, "total\t\t%d\n"
		      "avail\t\t%d\n"
		      "used\t\t%d\n"
		      "reserved\t%d\n",
		   total, avail, used, reserved);
	return 0;
}

static int dentry_lru_show(struct seq_file *s, void *ptr)
{
	struct ceph_client *client = s->private;
	struct ceph_mds_client *mdsc = &client->mdsc;
	struct ceph_dentry_info *di;

	spin_lock(&mdsc->dentry_lru_lock);
	list_for_each_entry(di, &mdsc->dentry_lru, lru) {
		struct dentry *dentry = di->dentry;
		seq_printf(s, "%p %p\t%.*s\n",
			   di, dentry, dentry->d_name.len, dentry->d_name.name);
	}
	spin_unlock(&mdsc->dentry_lru_lock);

	return 0;
}

#define DEFINE_SHOW_FUNC(name) 						\
static int name##_open(struct inode *inode, struct file *file)		\
{									\
	struct seq_file *sf;						\
	int ret;							\
									\
	ret = single_open(file, name, NULL);				\
	sf = file->private_data;					\
	sf->private = inode->i_private;					\
	return ret;							\
}									\
									\
static const struct file_operations name##_fops = {			\
	.open		= name##_open,					\
	.read		= seq_read,					\
	.llseek		= seq_lseek,					\
	.release	= single_release,				\
};

DEFINE_SHOW_FUNC(monmap_show)
DEFINE_SHOW_FUNC(mdsmap_show)
DEFINE_SHOW_FUNC(osdmap_show)
DEFINE_SHOW_FUNC(monc_show)
DEFINE_SHOW_FUNC(mdsc_show)
DEFINE_SHOW_FUNC(osdc_show)
DEFINE_SHOW_FUNC(dentry_lru_show)
DEFINE_SHOW_FUNC(caps_show)

static int congestion_kb_set(void *data, u64 val)
{
	struct ceph_client *client = (struct ceph_client *)data;

	if (client)
		client->mount_args->congestion_kb = (int)val;

	return 0;
}

static int congestion_kb_get(void *data, u64 *val)
{
	struct ceph_client *client = (struct ceph_client *)data;

	if (client)
		*val = (u64)client->mount_args->congestion_kb;

	return 0;
}


DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops, congestion_kb_get,
			congestion_kb_set, "%llu\n");

int __init 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 = 0;
	char name[80];

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

	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->mdsc.debugfs_file = debugfs_create_file("mdsc",
						      0600,
						      client->debugfs_dir,
						      client,
						      &mdsc_show_fops);
	if (!client->mdsc.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_mdsmap = debugfs_create_file("mdsmap",
					0600,
					client->debugfs_dir,
					client,
					&mdsmap_show_fops);
	if (!client->debugfs_mdsmap)
		goto out;

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

	client->debugfs_dentry_lru = debugfs_create_file("dentry_lru",
					0600,
					client->debugfs_dir,
					client,
					&dentry_lru_show_fops);
	if (!client->debugfs_dentry_lru)
		goto out;

	client->debugfs_caps = debugfs_create_file("caps",
						   0400,
						   client->debugfs_dir,
						   client,
						   &caps_show_fops);
	if (!client->debugfs_caps)
		goto out;

	client->debugfs_congestion_kb = debugfs_create_file("writeback_congestion_kb",
						   0600,
						   client->debugfs_dir,
						   client,
						   &congestion_kb_fops);
	if (!client->debugfs_congestion_kb)
		goto out;

	sprintf(name, "../../bdi/%s", dev_name(client->sb->s_bdi->dev));
	client->debugfs_bdi = debugfs_create_symlink("bdi", client->debugfs_dir,
						     name);

	return 0;

out:
	ceph_debugfs_client_cleanup(client);
	return ret;
}

void ceph_debugfs_client_cleanup(struct ceph_client *client)
{
	debugfs_remove(client->debugfs_bdi);
	debugfs_remove(client->debugfs_caps);
	debugfs_remove(client->debugfs_dentry_lru);
	debugfs_remove(client->debugfs_osdmap);
	debugfs_remove(client->debugfs_mdsmap);
	debugfs_remove(client->debugfs_monmap);
	debugfs_remove(client->osdc.debugfs_file);
	debugfs_remove(client->mdsc.debugfs_file);
	debugfs_remove(client->monc.debugfs_file);
	debugfs_remove(client->debugfs_congestion_kb);
	debugfs_remove(client->debugfs_dir);
}

#else  // CONFIG_DEBUG_FS

int __init 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
Commit	Line	Data
76aa844d SW	1	#include "ceph_debug.h"
76aa844d SW	2
06edf046	3	#include <linux/device.h>
76aa844d SW	4	#include <linux/module.h>
	5	#include <linux/ctype.h>
	6	#include <linux/debugfs.h>
	7	#include <linux/seq_file.h>
	8
	9	#include "super.h"
	10	#include "mds_client.h"
0743304d SW	11	#include "mon_client.h"
0743304d SW	12	#include "auth.h"
76aa844d	13
039934b8 SW	14	#ifdef CONFIG_DEBUG_FS
039934b8 SW	15
76aa844d SW	16	/*
	17	* Implement /sys/kernel/debug/ceph fun
	18	*
	19	* /sys/kernel/debug/ceph/client* - an instance of the ceph client
	20	* .../osdmap - current osdmap
	21	* .../mdsmap - current mdsmap
	22	* .../monmap - current monmap
	23	* .../osdc - active osd requests
	24	* .../mdsc - active mds requests
	25	* .../monc - mon client state
	26	* .../dentry_lru - dump contents of dentry lru
	27	* .../caps - expose cap (reservation) stats
06edf046	28	* .../bdi - symlink to ../../bdi/something
76aa844d SW	29	*/
	30
	31	static struct dentry *ceph_debugfs_dir;
	32
	33	static int monmap_show(struct seq_file s, void p)
	34	{
	35	int i;
	36	struct ceph_client *client = s->private;
	37
	38	if (client->monc.monmap == NULL)
	39	return 0;
	40
	41	seq_printf(s, "epoch %d\n", client->monc.monmap->epoch);
	42	for (i = 0; i < client->monc.monmap->num_mon; i++) {
	43	struct ceph_entity_inst *inst =
	44	&client->monc.monmap->mon_inst[i];
	45
	46	seq_printf(s, "\t%s%lld\t%s\n",
	47	ENTITY_NAME(inst->name),
	48	pr_addr(&inst->addr.in_addr));
	49	}
	50	return 0;
	51	}
	52
	53	static int mdsmap_show(struct seq_file s, void p)
	54	{
	55	int i;
	56	struct ceph_client *client = s->private;
	57
	58	if (client->mdsc.mdsmap == NULL)
	59	return 0;
	60	seq_printf(s, "epoch %d\n", client->mdsc.mdsmap->m_epoch);
	61	seq_printf(s, "root %d\n", client->mdsc.mdsmap->m_root);
	62	seq_printf(s, "session_timeout %d\n",
	63	client->mdsc.mdsmap->m_session_timeout);
	64	seq_printf(s, "session_autoclose %d\n",
	65	client->mdsc.mdsmap->m_session_autoclose);
	66	for (i = 0; i < client->mdsc.mdsmap->m_max_mds; i++) {
	67	struct ceph_entity_addr *addr =
	68	&client->mdsc.mdsmap->m_info[i].addr;
	69	int state = client->mdsc.mdsmap->m_info[i].state;
	70
	71	seq_printf(s, "\tmds%d\t%s\t(%s)\n", i, pr_addr(&addr->in_addr),
	72	ceph_mds_state_name(state));
	73	}
	74	return 0;
	75	}
	76
	77	static int osdmap_show(struct seq_file s, void p)
	78	{
	79	int i;
	80	struct ceph_client *client = s->private;
	81
	82	if (client->osdc.osdmap == NULL)
	83	return 0;
	84	seq_printf(s, "epoch %d\n", client->osdc.osdmap->epoch);
	85	seq_printf(s, "flags%s%s\n",
	86	(client->osdc.osdmap->flags & CEPH_OSDMAP_NEARFULL) ?
	87	" NEARFULL" : "",
	88	(client->osdc.osdmap->flags & CEPH_OSDMAP_FULL) ?
	89	" FULL" : "");
	90	for (i = 0; i < client->osdc.osdmap->num_pools; i++) {
	91	struct ceph_pg_pool_info *pool =
	92	&client->osdc.osdmap->pg_pool[i];
93	seq_printf(s, "pg_pool %d pg_num %d / %d, lpg_num %d / %d\n",
94	i, pool->v.pg_num, pool->pg_num_mask,
95	pool->v.lpg_num, pool->lpg_num_mask);
96	}
97	for (i = 0; i < client->osdc.osdmap->max_osd; i++) {
98	struct ceph_entity_addr *addr =
99	&client->osdc.osdmap->osd_addr[i];
100	int state = client->osdc.osdmap->osd_state[i];
101	char sb[64];
102
103	seq_printf(s, "\tosd%d\t%s\t%3d%%\t(%s)\n",
104	i, pr_addr(&addr->in_addr),
105	((client->osdc.osdmap->osd_weight[i]*100) >> 16),
106	ceph_osdmap_state_str(sb, sizeof(sb), state));
107	}
108	return 0;
109	}
110
111	static int monc_show(struct seq_file s, void p)
112	{
113	struct ceph_client *client = s->private;
114	struct ceph_mon_statfs_request *req;
76aa844d	115	struct ceph_mon_client *monc = &client->monc;
85ff03f6	116	struct rb_node *rp;
76aa844d SW	117
	118	mutex_lock(&monc->mutex);
	119
	120	if (monc->have_mdsmap)
	121	seq_printf(s, "have mdsmap %u\n", (unsigned)monc->have_mdsmap);
	122	if (monc->have_osdmap)
	123	seq_printf(s, "have osdmap %u\n", (unsigned)monc->have_osdmap);
	124	if (monc->want_next_osdmap)
	125	seq_printf(s, "want next osdmap\n");
	126
85ff03f6 SW	127	for (rp = rb_first(&monc->statfs_request_tree); rp; rp = rb_next(rp)) {
85ff03f6 SW	128	req = rb_entry(rp, struct ceph_mon_statfs_request, node);
76aa844d SW	129	seq_printf(s, "%lld statfs\n", req->tid);
76aa844d SW	130	}
76aa844d	131
85ff03f6	132	mutex_unlock(&monc->mutex);
76aa844d SW	133	return 0;
	134	}
	135
	136	static int mdsc_show(struct seq_file s, void p)
	137	{
	138	struct ceph_client *client = s->private;
76aa844d	139	struct ceph_mds_client *mdsc = &client->mdsc;
44ca18f2 SW	140	struct ceph_mds_request *req;
44ca18f2 SW	141	struct rb_node *rp;
76aa844d SW	142	int pathlen;
	143	u64 pathbase;
	144	char *path;
	145
	146	mutex_lock(&mdsc->mutex);
44ca18f2 SW	147	for (rp = rb_first(&mdsc->request_tree); rp; rp = rb_next(rp)) {
44ca18f2 SW	148	req = rb_entry(rp, struct ceph_mds_request, r_node);
76aa844d SW	149
	150	if (req->r_request)
	151	seq_printf(s, "%lld\tmds%d\t", req->r_tid, req->r_mds);
	152	else
	153	seq_printf(s, "%lld\t(no request)\t", req->r_tid);
	154
	155	seq_printf(s, "%s", ceph_mds_op_name(req->r_op));
	156
	157	if (req->r_got_unsafe)
	158	seq_printf(s, "\t(unsafe)");
	159	else
	160	seq_printf(s, "\t");
	161
	162	if (req->r_inode) {
	163	seq_printf(s, " #%llx", ceph_ino(req->r_inode));
	164	} else if (req->r_dentry) {
	165	path = ceph_mdsc_build_path(req->r_dentry, &pathlen,
	166	&pathbase, 0);
	167	spin_lock(&req->r_dentry->d_lock);
	168	seq_printf(s, " #%llx/%.*s (%s)",
	169	ceph_ino(req->r_dentry->d_parent->d_inode),
	170	req->r_dentry->d_name.len,
	171	req->r_dentry->d_name.name,
	172	path ? path : "");
	173	spin_unlock(&req->r_dentry->d_lock);
	174	kfree(path);
	175	} else if (req->r_path1) {
	176	seq_printf(s, " #%llx/%s", req->r_ino1.ino,
	177	req->r_path1);
	178	}
	179
	180	if (req->r_old_dentry) {
	181	path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen,
	182	&pathbase, 0);
	183	spin_lock(&req->r_old_dentry->d_lock);
	184	seq_printf(s, " #%llx/%.*s (%s)",
	185	ceph_ino(req->r_old_dentry->d_parent->d_inode),
	186	req->r_old_dentry->d_name.len,
	187	req->r_old_dentry->d_name.name,
	188	path ? path : "");
	189	spin_unlock(&req->r_old_dentry->d_lock);
	190	kfree(path);
	191	} else if (req->r_path2) {
	192	if (req->r_ino2.ino)
	193	seq_printf(s, " #%llx/%s", req->r_ino2.ino,
	194	req->r_path2);
	195	else
	196	seq_printf(s, " %s", req->r_path2);
	197	}
	198
	199	seq_printf(s, "\n");
	200	}
	201	mutex_unlock(&mdsc->mutex);
	202
	203	return 0;
	204	}
	205
	206	static int osdc_show(struct seq_file s, void pp)
	207	{
	208	struct ceph_client *client = s->private;
	209	struct ceph_osd_client *osdc = &client->osdc;
	210	struct rb_node *p;
	211
	212	mutex_lock(&osdc->request_mutex);
213	for (p = rb_first(&osdc->requests); p; p = rb_next(p)) {
214	struct ceph_osd_request *req;
215	struct ceph_osd_request_head *head;
216	struct ceph_osd_op *op;
217	int num_ops;
218	int opcode, olen;
219	int i;
220
221	req = rb_entry(p, struct ceph_osd_request, r_node);
222
7740a42f SW	223	seq_printf(s, "%lld\tosd%d\t%d.%x\t", req->r_tid,
	224	req->r_osd ? req->r_osd->o_osd : -1,
	225	le32_to_cpu(req->r_pgid.pool),
	226	le16_to_cpu(req->r_pgid.ps));
76aa844d SW	227
	228	head = req->r_request->front.iov_base;
	229	op = (void *)(head + 1);
	230
	231	num_ops = le16_to_cpu(head->num_ops);
	232	olen = le32_to_cpu(head->object_len);
	233	seq_printf(s, "%.*s", olen,
	234	(const char *)(head->ops + num_ops));
	235
	236	if (req->r_reassert_version.epoch)
	237	seq_printf(s, "\t%u'%llu",
	238	(unsigned)le32_to_cpu(req->r_reassert_version.epoch),
	239	le64_to_cpu(req->r_reassert_version.version));
	240	else
	241	seq_printf(s, "\t");
	242
	243	for (i = 0; i < num_ops; i++) {
	244	opcode = le16_to_cpu(op->op);
	245	seq_printf(s, "\t%s", ceph_osd_op_name(opcode));
	246	op++;
	247	}
	248
	249	seq_printf(s, "\n");
	250	}
	251	mutex_unlock(&osdc->request_mutex);
	252	return 0;
	253	}
	254
	255	static int caps_show(struct seq_file s, void p)
	256	{
	257	struct ceph_client *client = p;
	258	int total, avail, used, reserved;
	259
	260	ceph_reservation_status(client, &total, &avail, &used, &reserved);
	261	seq_printf(s, "total\t\t%d\n"
	262	"avail\t\t%d\n"
	263	"used\t\t%d\n"
	264	"reserved\t%d\n",
	265	total, avail, used, reserved);
	266	return 0;
	267	}
	268
	269	static int dentry_lru_show(struct seq_file s, void ptr)
	270	{
	271	struct ceph_client *client = s->private;
	272	struct ceph_mds_client *mdsc = &client->mdsc;
	273	struct ceph_dentry_info *di;
	274
	275	spin_lock(&mdsc->dentry_lru_lock);
	276	list_for_each_entry(di, &mdsc->dentry_lru, lru) {
	277	struct dentry *dentry = di->dentry;
	278	seq_printf(s, "%p %p\t%.*s\n",
	279	di, dentry, dentry->d_name.len, dentry->d_name.name);
	280	}
	281	spin_unlock(&mdsc->dentry_lru_lock);
	282
	283	return 0;
	284	}
	285
	286	#define DEFINE_SHOW_FUNC(name) \
	287	static int name##_open(struct inode inode, struct file file) \
	288	{ \
	289	struct seq_file *sf; \
	290	int ret; \
291	\
292	ret = single_open(file, name, NULL); \
293	sf = file->private_data; \
294	sf->private = inode->i_private; \
295	return ret; \
296	} \
297	\
298	static const struct file_operations name##_fops = { \
299	.open = name##_open, \
300	.read = seq_read, \
301	.llseek = seq_lseek, \
302	.release = single_release, \
303	};
304
305	DEFINE_SHOW_FUNC(monmap_show)
306	DEFINE_SHOW_FUNC(mdsmap_show)
307	DEFINE_SHOW_FUNC(osdmap_show)
308	DEFINE_SHOW_FUNC(monc_show)
309	DEFINE_SHOW_FUNC(mdsc_show)
310	DEFINE_SHOW_FUNC(osdc_show)
311	DEFINE_SHOW_FUNC(dentry_lru_show)
312	DEFINE_SHOW_FUNC(caps_show)
313
2baba250 YS	314	static int congestion_kb_set(void *data, u64 val)
	315	{
	316	struct ceph_client client = (struct ceph_client )data;
	317
	318	if (client)
	319	client->mount_args->congestion_kb = (int)val;
	320
	321	return 0;
	322	}
	323
	324	static int congestion_kb_get(void data, u64 val)
	325	{
	326	struct ceph_client client = (struct ceph_client )data;
	327
	328	if (client)
	329	*val = (u64)client->mount_args->congestion_kb;
	330
	331	return 0;
	332	}
	333
	334
	335	DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops, congestion_kb_get,
	336	congestion_kb_set, "%llu\n");
	337
76aa844d SW	338	int __init ceph_debugfs_init(void)
	339	{
	340	ceph_debugfs_dir = debugfs_create_dir("ceph", NULL);
	341	if (!ceph_debugfs_dir)
	342	return -ENOMEM;
	343	return 0;
	344	}
	345
	346	void ceph_debugfs_cleanup(void)
	347	{
	348	debugfs_remove(ceph_debugfs_dir);
	349	}
	350
	351	int ceph_debugfs_client_init(struct ceph_client *client)
	352	{
	353	int ret = 0;
	354	char name[80];
	355
	356	snprintf(name, sizeof(name), FSID_FORMAT ".client%lld",
0743304d	357	PR_FSID(&client->fsid), client->monc.auth->global_id);
76aa844d SW	358
	359	client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);
	360	if (!client->debugfs_dir)
	361	goto out;
	362
	363	client->monc.debugfs_file = debugfs_create_file("monc",
	364	0600,
	365	client->debugfs_dir,
	366	client,
	367	&monc_show_fops);
	368	if (!client->monc.debugfs_file)
	369	goto out;
	370
	371	client->mdsc.debugfs_file = debugfs_create_file("mdsc",
	372	0600,
	373	client->debugfs_dir,
	374	client,
	375	&mdsc_show_fops);
	376	if (!client->mdsc.debugfs_file)
	377	goto out;
	378
	379	client->osdc.debugfs_file = debugfs_create_file("osdc",
	380	0600,
	381	client->debugfs_dir,
	382	client,
	383	&osdc_show_fops);
	384	if (!client->osdc.debugfs_file)
	385	goto out;
	386
	387	client->debugfs_monmap = debugfs_create_file("monmap",
	388	0600,
	389	client->debugfs_dir,
	390	client,
	391	&monmap_show_fops);
	392	if (!client->debugfs_monmap)
	393	goto out;
	394
	395	client->debugfs_mdsmap = debugfs_create_file("mdsmap",
	396	0600,
	397	client->debugfs_dir,
	398	client,
	399	&mdsmap_show_fops);
	400	if (!client->debugfs_mdsmap)
	401	goto out;
	402
	403	client->debugfs_osdmap = debugfs_create_file("osdmap",
	404	0600,
	405	client->debugfs_dir,
	406	client,
	407	&osdmap_show_fops);
	408	if (!client->debugfs_osdmap)
	409	goto out;
	410
	411	client->debugfs_dentry_lru = debugfs_create_file("dentry_lru",
	412	0600,
	413	client->debugfs_dir,
	414	client,
	415	&dentry_lru_show_fops);
	416	if (!client->debugfs_dentry_lru)
	417	goto out;
	418
	419	client->debugfs_caps = debugfs_create_file("caps",
	420	0400,
	421	client->debugfs_dir,
422	client,
423	&caps_show_fops);
424	if (!client->debugfs_caps)
425	goto out;
426
2baba250 YS	427	client->debugfs_congestion_kb = debugfs_create_file("writeback_congestion_kb",
	428	0600,
	429	client->debugfs_dir,
	430	client,
	431	&congestion_kb_fops);
	432	if (!client->debugfs_congestion_kb)
	433	goto out;
	434
06edf046 SW	435	sprintf(name, "../../bdi/%s", dev_name(client->sb->s_bdi->dev));
	436	client->debugfs_bdi = debugfs_create_symlink("bdi", client->debugfs_dir,
	437	name);
	438
76aa844d SW	439	return 0;
	440
	441	out:
	442	ceph_debugfs_client_cleanup(client);
	443	return ret;
	444	}
	445
	446	void ceph_debugfs_client_cleanup(struct ceph_client *client)
	447	{
06edf046	448	debugfs_remove(client->debugfs_bdi);
76aa844d SW	449	debugfs_remove(client->debugfs_caps);
	450	debugfs_remove(client->debugfs_dentry_lru);
	451	debugfs_remove(client->debugfs_osdmap);
	452	debugfs_remove(client->debugfs_mdsmap);
	453	debugfs_remove(client->debugfs_monmap);
	454	debugfs_remove(client->osdc.debugfs_file);
	455	debugfs_remove(client->mdsc.debugfs_file);
	456	debugfs_remove(client->monc.debugfs_file);
2baba250	457	debugfs_remove(client->debugfs_congestion_kb);
76aa844d SW	458	debugfs_remove(client->debugfs_dir);
	459	}
	460
039934b8 SW	461	#else // CONFIG_DEBUG_FS
	462
	463	int __init ceph_debugfs_init(void)
	464	{
	465	return 0;
	466	}
	467
	468	void ceph_debugfs_cleanup(void)
	469	{
	470	}
	471
	472	int ceph_debugfs_client_init(struct ceph_client *client)
	473	{
	474	return 0;
	475	}
	476
	477	void ceph_debugfs_client_cleanup(struct ceph_client *client)
	478	{
	479	}
	480
	481	#endif // CONFIG_DEBUG_FS