399 lines
11 KiB
C
399 lines
11 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#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/math64.h>
|
|
#include <linux/ktime.h>
|
|
|
|
#include <linux/ceph/libceph.h>
|
|
#include <linux/ceph/mon_client.h>
|
|
#include <linux/ceph/auth.h>
|
|
#include <linux/ceph/debugfs.h>
|
|
|
|
#include "super.h"
|
|
|
|
#ifdef CONFIG_DEBUG_FS
|
|
|
|
#include "mds_client.h"
|
|
#include "metric.h"
|
|
|
|
static int mdsmap_show(struct seq_file *s, void *p)
|
|
{
|
|
int i;
|
|
struct ceph_fs_client *fsc = s->private;
|
|
struct ceph_mdsmap *mdsmap;
|
|
|
|
if (!fsc->mdsc || !fsc->mdsc->mdsmap)
|
|
return 0;
|
|
mdsmap = fsc->mdsc->mdsmap;
|
|
seq_printf(s, "epoch %d\n", mdsmap->m_epoch);
|
|
seq_printf(s, "root %d\n", mdsmap->m_root);
|
|
seq_printf(s, "max_mds %d\n", mdsmap->m_max_mds);
|
|
seq_printf(s, "session_timeout %d\n", mdsmap->m_session_timeout);
|
|
seq_printf(s, "session_autoclose %d\n", mdsmap->m_session_autoclose);
|
|
for (i = 0; i < mdsmap->possible_max_rank; i++) {
|
|
struct ceph_entity_addr *addr = &mdsmap->m_info[i].addr;
|
|
int state = mdsmap->m_info[i].state;
|
|
seq_printf(s, "\tmds%d\t%s\t(%s)\n", i,
|
|
ceph_pr_addr(addr),
|
|
ceph_mds_state_name(state));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* mdsc debugfs
|
|
*/
|
|
static int mdsc_show(struct seq_file *s, void *p)
|
|
{
|
|
struct ceph_fs_client *fsc = s->private;
|
|
struct ceph_mds_client *mdsc = fsc->mdsc;
|
|
struct ceph_mds_request *req;
|
|
struct rb_node *rp;
|
|
int pathlen = 0;
|
|
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 && req->r_session)
|
|
seq_printf(s, "%lld\tmds%d\t", req->r_tid,
|
|
req->r_session->s_mds);
|
|
else if (!req->r_request)
|
|
seq_printf(s, "%lld\t(no request)\t", req->r_tid);
|
|
else
|
|
seq_printf(s, "%lld\t(no session)\t", req->r_tid);
|
|
|
|
seq_printf(s, "%s", ceph_mds_op_name(req->r_op));
|
|
|
|
if (test_bit(CEPH_MDS_R_GOT_UNSAFE, &req->r_req_flags))
|
|
seq_puts(s, "\t(unsafe)");
|
|
else
|
|
seq_puts(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);
|
|
if (IS_ERR(path))
|
|
path = NULL;
|
|
spin_lock(&req->r_dentry->d_lock);
|
|
seq_printf(s, " #%llx/%pd (%s)",
|
|
ceph_ino(d_inode(req->r_dentry->d_parent)),
|
|
req->r_dentry,
|
|
path ? path : "");
|
|
spin_unlock(&req->r_dentry->d_lock);
|
|
ceph_mdsc_free_path(path, pathlen);
|
|
} else if (req->r_path1) {
|
|
seq_printf(s, " #%llx/%s", req->r_ino1.ino,
|
|
req->r_path1);
|
|
} else {
|
|
seq_printf(s, " #%llx", req->r_ino1.ino);
|
|
}
|
|
|
|
if (req->r_old_dentry) {
|
|
path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen,
|
|
&pathbase, 0);
|
|
if (IS_ERR(path))
|
|
path = NULL;
|
|
spin_lock(&req->r_old_dentry->d_lock);
|
|
seq_printf(s, " #%llx/%pd (%s)",
|
|
req->r_old_dentry_dir ?
|
|
ceph_ino(req->r_old_dentry_dir) : 0,
|
|
req->r_old_dentry,
|
|
path ? path : "");
|
|
spin_unlock(&req->r_old_dentry->d_lock);
|
|
ceph_mdsc_free_path(path, pathlen);
|
|
} else if (req->r_path2 && req->r_op != CEPH_MDS_OP_SYMLINK) {
|
|
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_puts(s, "\n");
|
|
}
|
|
mutex_unlock(&mdsc->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define CEPH_METRIC_SHOW(name, total, avg, min, max, sq) { \
|
|
s64 _total, _avg, _min, _max, _sq, _st; \
|
|
_avg = ktime_to_us(avg); \
|
|
_min = ktime_to_us(min == KTIME_MAX ? 0 : min); \
|
|
_max = ktime_to_us(max); \
|
|
_total = total - 1; \
|
|
_sq = _total > 0 ? DIV64_U64_ROUND_CLOSEST(sq, _total) : 0; \
|
|
_st = int_sqrt64(_sq); \
|
|
_st = ktime_to_us(_st); \
|
|
seq_printf(s, "%-14s%-12lld%-16lld%-16lld%-16lld%lld\n", \
|
|
name, total, _avg, _min, _max, _st); \
|
|
}
|
|
|
|
static int metric_show(struct seq_file *s, void *p)
|
|
{
|
|
struct ceph_fs_client *fsc = s->private;
|
|
struct ceph_mds_client *mdsc = fsc->mdsc;
|
|
struct ceph_client_metric *m = &mdsc->metric;
|
|
int nr_caps = 0;
|
|
s64 total, sum, avg, min, max, sq;
|
|
|
|
seq_printf(s, "item total avg_lat(us) min_lat(us) max_lat(us) stdev(us)\n");
|
|
seq_printf(s, "-----------------------------------------------------------------------------------\n");
|
|
|
|
spin_lock(&m->read_latency_lock);
|
|
total = m->total_reads;
|
|
sum = m->read_latency_sum;
|
|
avg = total > 0 ? DIV64_U64_ROUND_CLOSEST(sum, total) : 0;
|
|
min = m->read_latency_min;
|
|
max = m->read_latency_max;
|
|
sq = m->read_latency_sq_sum;
|
|
spin_unlock(&m->read_latency_lock);
|
|
CEPH_METRIC_SHOW("read", total, avg, min, max, sq);
|
|
|
|
spin_lock(&m->write_latency_lock);
|
|
total = m->total_writes;
|
|
sum = m->write_latency_sum;
|
|
avg = total > 0 ? DIV64_U64_ROUND_CLOSEST(sum, total) : 0;
|
|
min = m->write_latency_min;
|
|
max = m->write_latency_max;
|
|
sq = m->write_latency_sq_sum;
|
|
spin_unlock(&m->write_latency_lock);
|
|
CEPH_METRIC_SHOW("write", total, avg, min, max, sq);
|
|
|
|
spin_lock(&m->metadata_latency_lock);
|
|
total = m->total_metadatas;
|
|
sum = m->metadata_latency_sum;
|
|
avg = total > 0 ? DIV64_U64_ROUND_CLOSEST(sum, total) : 0;
|
|
min = m->metadata_latency_min;
|
|
max = m->metadata_latency_max;
|
|
sq = m->metadata_latency_sq_sum;
|
|
spin_unlock(&m->metadata_latency_lock);
|
|
CEPH_METRIC_SHOW("metadata", total, avg, min, max, sq);
|
|
|
|
seq_printf(s, "\n");
|
|
seq_printf(s, "item total miss hit\n");
|
|
seq_printf(s, "-------------------------------------------------\n");
|
|
|
|
seq_printf(s, "%-14s%-16lld%-16lld%lld\n", "d_lease",
|
|
atomic64_read(&m->total_dentries),
|
|
percpu_counter_sum(&m->d_lease_mis),
|
|
percpu_counter_sum(&m->d_lease_hit));
|
|
|
|
nr_caps = atomic64_read(&m->total_caps);
|
|
seq_printf(s, "%-14s%-16d%-16lld%lld\n", "caps", nr_caps,
|
|
percpu_counter_sum(&m->i_caps_mis),
|
|
percpu_counter_sum(&m->i_caps_hit));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int caps_show_cb(struct inode *inode, struct ceph_cap *cap, void *p)
|
|
{
|
|
struct seq_file *s = p;
|
|
|
|
seq_printf(s, "0x%-17llx%-17s%-17s\n", ceph_ino(inode),
|
|
ceph_cap_string(cap->issued),
|
|
ceph_cap_string(cap->implemented));
|
|
return 0;
|
|
}
|
|
|
|
static int caps_show(struct seq_file *s, void *p)
|
|
{
|
|
struct ceph_fs_client *fsc = s->private;
|
|
struct ceph_mds_client *mdsc = fsc->mdsc;
|
|
int total, avail, used, reserved, min, i;
|
|
struct cap_wait *cw;
|
|
|
|
ceph_reservation_status(fsc, &total, &avail, &used, &reserved, &min);
|
|
seq_printf(s, "total\t\t%d\n"
|
|
"avail\t\t%d\n"
|
|
"used\t\t%d\n"
|
|
"reserved\t%d\n"
|
|
"min\t\t%d\n\n",
|
|
total, avail, used, reserved, min);
|
|
seq_printf(s, "ino issued implemented\n");
|
|
seq_printf(s, "-----------------------------------------------\n");
|
|
|
|
mutex_lock(&mdsc->mutex);
|
|
for (i = 0; i < mdsc->max_sessions; i++) {
|
|
struct ceph_mds_session *session;
|
|
|
|
session = __ceph_lookup_mds_session(mdsc, i);
|
|
if (!session)
|
|
continue;
|
|
mutex_unlock(&mdsc->mutex);
|
|
mutex_lock(&session->s_mutex);
|
|
ceph_iterate_session_caps(session, caps_show_cb, s);
|
|
mutex_unlock(&session->s_mutex);
|
|
ceph_put_mds_session(session);
|
|
mutex_lock(&mdsc->mutex);
|
|
}
|
|
mutex_unlock(&mdsc->mutex);
|
|
|
|
seq_printf(s, "\n\nWaiters:\n--------\n");
|
|
seq_printf(s, "tgid ino need want\n");
|
|
seq_printf(s, "-----------------------------------------------------\n");
|
|
|
|
spin_lock(&mdsc->caps_list_lock);
|
|
list_for_each_entry(cw, &mdsc->cap_wait_list, list) {
|
|
seq_printf(s, "%-13d0x%-17llx%-17s%-17s\n", cw->tgid, cw->ino,
|
|
ceph_cap_string(cw->need),
|
|
ceph_cap_string(cw->want));
|
|
}
|
|
spin_unlock(&mdsc->caps_list_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mds_sessions_show(struct seq_file *s, void *ptr)
|
|
{
|
|
struct ceph_fs_client *fsc = s->private;
|
|
struct ceph_mds_client *mdsc = fsc->mdsc;
|
|
struct ceph_auth_client *ac = fsc->client->monc.auth;
|
|
struct ceph_options *opt = fsc->client->options;
|
|
int mds;
|
|
|
|
mutex_lock(&mdsc->mutex);
|
|
|
|
/* The 'num' portion of an 'entity name' */
|
|
seq_printf(s, "global_id %llu\n", ac->global_id);
|
|
|
|
/* The -o name mount argument */
|
|
seq_printf(s, "name \"%s\"\n", opt->name ? opt->name : "");
|
|
|
|
/* The list of MDS session rank+state */
|
|
for (mds = 0; mds < mdsc->max_sessions; mds++) {
|
|
struct ceph_mds_session *session =
|
|
__ceph_lookup_mds_session(mdsc, mds);
|
|
if (!session) {
|
|
continue;
|
|
}
|
|
mutex_unlock(&mdsc->mutex);
|
|
seq_printf(s, "mds.%d %s\n",
|
|
session->s_mds,
|
|
ceph_session_state_name(session->s_state));
|
|
|
|
ceph_put_mds_session(session);
|
|
mutex_lock(&mdsc->mutex);
|
|
}
|
|
mutex_unlock(&mdsc->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(mdsmap);
|
|
DEFINE_SHOW_ATTRIBUTE(mdsc);
|
|
DEFINE_SHOW_ATTRIBUTE(caps);
|
|
DEFINE_SHOW_ATTRIBUTE(mds_sessions);
|
|
DEFINE_SHOW_ATTRIBUTE(metric);
|
|
|
|
|
|
/*
|
|
* debugfs
|
|
*/
|
|
static int congestion_kb_set(void *data, u64 val)
|
|
{
|
|
struct ceph_fs_client *fsc = (struct ceph_fs_client *)data;
|
|
|
|
fsc->mount_options->congestion_kb = (int)val;
|
|
return 0;
|
|
}
|
|
|
|
static int congestion_kb_get(void *data, u64 *val)
|
|
{
|
|
struct ceph_fs_client *fsc = (struct ceph_fs_client *)data;
|
|
|
|
*val = (u64)fsc->mount_options->congestion_kb;
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_SIMPLE_ATTRIBUTE(congestion_kb_fops, congestion_kb_get,
|
|
congestion_kb_set, "%llu\n");
|
|
|
|
|
|
void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc)
|
|
{
|
|
dout("ceph_fs_debugfs_cleanup\n");
|
|
debugfs_remove(fsc->debugfs_bdi);
|
|
debugfs_remove(fsc->debugfs_congestion_kb);
|
|
debugfs_remove(fsc->debugfs_mdsmap);
|
|
debugfs_remove(fsc->debugfs_mds_sessions);
|
|
debugfs_remove(fsc->debugfs_caps);
|
|
debugfs_remove(fsc->debugfs_metric);
|
|
debugfs_remove(fsc->debugfs_mdsc);
|
|
}
|
|
|
|
void ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
|
|
{
|
|
char name[100];
|
|
|
|
dout("ceph_fs_debugfs_init\n");
|
|
fsc->debugfs_congestion_kb =
|
|
debugfs_create_file("writeback_congestion_kb",
|
|
0600,
|
|
fsc->client->debugfs_dir,
|
|
fsc,
|
|
&congestion_kb_fops);
|
|
|
|
snprintf(name, sizeof(name), "../../bdi/%s",
|
|
bdi_dev_name(fsc->sb->s_bdi));
|
|
fsc->debugfs_bdi =
|
|
debugfs_create_symlink("bdi",
|
|
fsc->client->debugfs_dir,
|
|
name);
|
|
|
|
fsc->debugfs_mdsmap = debugfs_create_file("mdsmap",
|
|
0400,
|
|
fsc->client->debugfs_dir,
|
|
fsc,
|
|
&mdsmap_fops);
|
|
|
|
fsc->debugfs_mds_sessions = debugfs_create_file("mds_sessions",
|
|
0400,
|
|
fsc->client->debugfs_dir,
|
|
fsc,
|
|
&mds_sessions_fops);
|
|
|
|
fsc->debugfs_mdsc = debugfs_create_file("mdsc",
|
|
0400,
|
|
fsc->client->debugfs_dir,
|
|
fsc,
|
|
&mdsc_fops);
|
|
|
|
fsc->debugfs_metric = debugfs_create_file("metrics",
|
|
0400,
|
|
fsc->client->debugfs_dir,
|
|
fsc,
|
|
&metric_fops);
|
|
|
|
fsc->debugfs_caps = debugfs_create_file("caps",
|
|
0400,
|
|
fsc->client->debugfs_dir,
|
|
fsc,
|
|
&caps_fops);
|
|
}
|
|
|
|
|
|
#else /* CONFIG_DEBUG_FS */
|
|
|
|
void ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
|
|
{
|
|
}
|
|
|
|
void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc)
|
|
{
|
|
}
|
|
|
|
#endif /* CONFIG_DEBUG_FS */
|