486 lines
13 KiB
C
486 lines
13 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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#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/math64.h>
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#include <linux/ktime.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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#include "super.h"
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#ifdef CONFIG_DEBUG_FS
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#include "mds_client.h"
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#include "metric.h"
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static int mdsmap_show(struct seq_file *s, void *p)
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{
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int i;
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struct ceph_fs_client *fsc = s->private;
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struct ceph_mdsmap *mdsmap;
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if (!fsc->mdsc || !fsc->mdsc->mdsmap)
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return 0;
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mdsmap = fsc->mdsc->mdsmap;
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seq_printf(s, "epoch %d\n", mdsmap->m_epoch);
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seq_printf(s, "root %d\n", mdsmap->m_root);
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seq_printf(s, "max_mds %d\n", mdsmap->m_max_mds);
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seq_printf(s, "session_timeout %d\n", mdsmap->m_session_timeout);
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seq_printf(s, "session_autoclose %d\n", mdsmap->m_session_autoclose);
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for (i = 0; i < mdsmap->possible_max_rank; i++) {
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struct ceph_entity_addr *addr = &mdsmap->m_info[i].addr;
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int state = mdsmap->m_info[i].state;
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seq_printf(s, "\tmds%d\t%s\t(%s)\n", i,
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ceph_pr_addr(addr),
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ceph_mds_state_name(state));
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}
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return 0;
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}
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/*
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* mdsc debugfs
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*/
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static int mdsc_show(struct seq_file *s, void *p)
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{
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struct ceph_fs_client *fsc = s->private;
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struct ceph_mds_client *mdsc = fsc->mdsc;
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struct ceph_mds_request *req;
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struct rb_node *rp;
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int pathlen = 0;
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u64 pathbase;
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char *path;
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mutex_lock(&mdsc->mutex);
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for (rp = rb_first(&mdsc->request_tree); rp; rp = rb_next(rp)) {
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req = rb_entry(rp, struct ceph_mds_request, r_node);
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if (req->r_request && req->r_session)
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seq_printf(s, "%lld\tmds%d\t", req->r_tid,
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req->r_session->s_mds);
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else if (!req->r_request)
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seq_printf(s, "%lld\t(no request)\t", req->r_tid);
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else
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seq_printf(s, "%lld\t(no session)\t", req->r_tid);
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seq_printf(s, "%s", ceph_mds_op_name(req->r_op));
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if (test_bit(CEPH_MDS_R_GOT_UNSAFE, &req->r_req_flags))
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seq_puts(s, "\t(unsafe)");
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else
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seq_puts(s, "\t");
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if (req->r_inode) {
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seq_printf(s, " #%llx", ceph_ino(req->r_inode));
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} else if (req->r_dentry) {
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path = ceph_mdsc_build_path(req->r_dentry, &pathlen,
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&pathbase, 0);
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if (IS_ERR(path))
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path = NULL;
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spin_lock(&req->r_dentry->d_lock);
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seq_printf(s, " #%llx/%pd (%s)",
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ceph_ino(d_inode(req->r_dentry->d_parent)),
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req->r_dentry,
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path ? path : "");
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spin_unlock(&req->r_dentry->d_lock);
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ceph_mdsc_free_path(path, pathlen);
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} else if (req->r_path1) {
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seq_printf(s, " #%llx/%s", req->r_ino1.ino,
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req->r_path1);
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} else {
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seq_printf(s, " #%llx", req->r_ino1.ino);
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}
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if (req->r_old_dentry) {
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path = ceph_mdsc_build_path(req->r_old_dentry, &pathlen,
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&pathbase, 0);
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if (IS_ERR(path))
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path = NULL;
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spin_lock(&req->r_old_dentry->d_lock);
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seq_printf(s, " #%llx/%pd (%s)",
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req->r_old_dentry_dir ?
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ceph_ino(req->r_old_dentry_dir) : 0,
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req->r_old_dentry,
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path ? path : "");
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spin_unlock(&req->r_old_dentry->d_lock);
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ceph_mdsc_free_path(path, pathlen);
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} else if (req->r_path2 && req->r_op != CEPH_MDS_OP_SYMLINK) {
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if (req->r_ino2.ino)
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seq_printf(s, " #%llx/%s", req->r_ino2.ino,
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req->r_path2);
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else
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seq_printf(s, " %s", req->r_path2);
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}
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seq_puts(s, "\n");
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}
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mutex_unlock(&mdsc->mutex);
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return 0;
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}
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#define CEPH_LAT_METRIC_SHOW(name, total, avg, min, max, sq) { \
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s64 _total, _avg, _min, _max, _sq, _st; \
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_avg = ktime_to_us(avg); \
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_min = ktime_to_us(min == KTIME_MAX ? 0 : min); \
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_max = ktime_to_us(max); \
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_total = total - 1; \
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_sq = _total > 0 ? DIV64_U64_ROUND_CLOSEST(sq, _total) : 0; \
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_st = int_sqrt64(_sq); \
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_st = ktime_to_us(_st); \
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seq_printf(s, "%-14s%-12lld%-16lld%-16lld%-16lld%lld\n", \
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name, total, _avg, _min, _max, _st); \
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}
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#define CEPH_SZ_METRIC_SHOW(name, total, avg, min, max, sum) { \
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u64 _min = min == U64_MAX ? 0 : min; \
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seq_printf(s, "%-14s%-12lld%-16llu%-16llu%-16llu%llu\n", \
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name, total, avg, _min, max, sum); \
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}
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static int metrics_file_show(struct seq_file *s, void *p)
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{
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struct ceph_fs_client *fsc = s->private;
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struct ceph_client_metric *m = &fsc->mdsc->metric;
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seq_printf(s, "item total\n");
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seq_printf(s, "------------------------------------------\n");
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seq_printf(s, "%-35s%lld\n", "total inodes",
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percpu_counter_sum(&m->total_inodes));
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seq_printf(s, "%-35s%lld\n", "opened files",
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atomic64_read(&m->opened_files));
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seq_printf(s, "%-35s%lld\n", "pinned i_caps",
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atomic64_read(&m->total_caps));
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seq_printf(s, "%-35s%lld\n", "opened inodes",
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percpu_counter_sum(&m->opened_inodes));
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return 0;
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}
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static const char * const metric_str[] = {
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"read",
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"write",
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"metadata",
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"copyfrom"
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};
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static int metrics_latency_show(struct seq_file *s, void *p)
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{
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struct ceph_fs_client *fsc = s->private;
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struct ceph_client_metric *cm = &fsc->mdsc->metric;
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struct ceph_metric *m;
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s64 total, avg, min, max, sq;
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int i;
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seq_printf(s, "item total avg_lat(us) min_lat(us) max_lat(us) stdev(us)\n");
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seq_printf(s, "-----------------------------------------------------------------------------------\n");
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for (i = 0; i < METRIC_MAX; i++) {
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m = &cm->metric[i];
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spin_lock(&m->lock);
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total = m->total;
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avg = m->latency_avg;
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min = m->latency_min;
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max = m->latency_max;
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sq = m->latency_sq_sum;
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spin_unlock(&m->lock);
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CEPH_LAT_METRIC_SHOW(metric_str[i], total, avg, min, max, sq);
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}
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return 0;
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}
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static int metrics_size_show(struct seq_file *s, void *p)
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{
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struct ceph_fs_client *fsc = s->private;
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struct ceph_client_metric *cm = &fsc->mdsc->metric;
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struct ceph_metric *m;
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s64 total;
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u64 sum, avg, min, max;
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int i;
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seq_printf(s, "item total avg_sz(bytes) min_sz(bytes) max_sz(bytes) total_sz(bytes)\n");
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seq_printf(s, "----------------------------------------------------------------------------------------\n");
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for (i = 0; i < METRIC_MAX; i++) {
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/* skip 'metadata' as it doesn't use the size metric */
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if (i == METRIC_METADATA)
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continue;
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m = &cm->metric[i];
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spin_lock(&m->lock);
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total = m->total;
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sum = m->size_sum;
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avg = total > 0 ? DIV64_U64_ROUND_CLOSEST(sum, total) : 0;
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min = m->size_min;
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max = m->size_max;
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spin_unlock(&m->lock);
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CEPH_SZ_METRIC_SHOW(metric_str[i], total, avg, min, max, sum);
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}
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return 0;
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}
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static int metrics_caps_show(struct seq_file *s, void *p)
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{
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struct ceph_fs_client *fsc = s->private;
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struct ceph_client_metric *m = &fsc->mdsc->metric;
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int nr_caps = 0;
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seq_printf(s, "item total miss hit\n");
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seq_printf(s, "-------------------------------------------------\n");
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seq_printf(s, "%-14s%-16lld%-16lld%lld\n", "d_lease",
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atomic64_read(&m->total_dentries),
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percpu_counter_sum(&m->d_lease_mis),
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percpu_counter_sum(&m->d_lease_hit));
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nr_caps = atomic64_read(&m->total_caps);
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seq_printf(s, "%-14s%-16d%-16lld%lld\n", "caps", nr_caps,
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percpu_counter_sum(&m->i_caps_mis),
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percpu_counter_sum(&m->i_caps_hit));
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return 0;
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}
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static int caps_show_cb(struct inode *inode, int mds, void *p)
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{
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struct ceph_inode_info *ci = ceph_inode(inode);
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struct seq_file *s = p;
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struct ceph_cap *cap;
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spin_lock(&ci->i_ceph_lock);
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cap = __get_cap_for_mds(ci, mds);
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if (cap)
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seq_printf(s, "0x%-17llx%-3d%-17s%-17s\n", ceph_ino(inode),
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cap->session->s_mds,
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ceph_cap_string(cap->issued),
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ceph_cap_string(cap->implemented));
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spin_unlock(&ci->i_ceph_lock);
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return 0;
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}
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static int caps_show(struct seq_file *s, void *p)
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{
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struct ceph_fs_client *fsc = s->private;
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struct ceph_mds_client *mdsc = fsc->mdsc;
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int total, avail, used, reserved, min, i;
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struct cap_wait *cw;
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ceph_reservation_status(fsc, &total, &avail, &used, &reserved, &min);
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seq_printf(s, "total\t\t%d\n"
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"avail\t\t%d\n"
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"used\t\t%d\n"
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"reserved\t%d\n"
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"min\t\t%d\n\n",
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total, avail, used, reserved, min);
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seq_printf(s, "ino mds issued implemented\n");
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seq_printf(s, "--------------------------------------------------\n");
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mutex_lock(&mdsc->mutex);
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for (i = 0; i < mdsc->max_sessions; i++) {
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struct ceph_mds_session *session;
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session = __ceph_lookup_mds_session(mdsc, i);
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if (!session)
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continue;
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mutex_unlock(&mdsc->mutex);
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mutex_lock(&session->s_mutex);
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ceph_iterate_session_caps(session, caps_show_cb, s);
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mutex_unlock(&session->s_mutex);
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ceph_put_mds_session(session);
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mutex_lock(&mdsc->mutex);
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}
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mutex_unlock(&mdsc->mutex);
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seq_printf(s, "\n\nWaiters:\n--------\n");
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seq_printf(s, "tgid ino need want\n");
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seq_printf(s, "-----------------------------------------------------\n");
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spin_lock(&mdsc->caps_list_lock);
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list_for_each_entry(cw, &mdsc->cap_wait_list, list) {
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seq_printf(s, "%-13d0x%-17llx%-17s%-17s\n", cw->tgid, cw->ino,
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ceph_cap_string(cw->need),
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ceph_cap_string(cw->want));
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}
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spin_unlock(&mdsc->caps_list_lock);
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return 0;
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}
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static int mds_sessions_show(struct seq_file *s, void *ptr)
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{
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struct ceph_fs_client *fsc = s->private;
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struct ceph_mds_client *mdsc = fsc->mdsc;
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struct ceph_auth_client *ac = fsc->client->monc.auth;
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struct ceph_options *opt = fsc->client->options;
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int mds;
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mutex_lock(&mdsc->mutex);
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/* The 'num' portion of an 'entity name' */
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seq_printf(s, "global_id %llu\n", ac->global_id);
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/* The -o name mount argument */
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seq_printf(s, "name \"%s\"\n", opt->name ? opt->name : "");
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/* The list of MDS session rank+state */
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for (mds = 0; mds < mdsc->max_sessions; mds++) {
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struct ceph_mds_session *session =
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__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;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int status_show(struct seq_file *s, void *p)
|
||
|
|
{
|
||
|
|
struct ceph_fs_client *fsc = s->private;
|
||
|
|
struct ceph_entity_inst *inst = &fsc->client->msgr.inst;
|
||
|
|
struct ceph_entity_addr *client_addr = ceph_client_addr(fsc->client);
|
||
|
|
|
||
|
|
seq_printf(s, "instance: %s.%lld %s/%u\n", ENTITY_NAME(inst->name),
|
||
|
|
ceph_pr_addr(client_addr), le32_to_cpu(client_addr->nonce));
|
||
|
|
seq_printf(s, "blocklisted: %s\n", fsc->blocklisted ? "true" : "false");
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
DEFINE_SHOW_ATTRIBUTE(mdsmap);
|
||
|
|
DEFINE_SHOW_ATTRIBUTE(mdsc);
|
||
|
|
DEFINE_SHOW_ATTRIBUTE(caps);
|
||
|
|
DEFINE_SHOW_ATTRIBUTE(mds_sessions);
|
||
|
|
DEFINE_SHOW_ATTRIBUTE(status);
|
||
|
|
DEFINE_SHOW_ATTRIBUTE(metrics_file);
|
||
|
|
DEFINE_SHOW_ATTRIBUTE(metrics_latency);
|
||
|
|
DEFINE_SHOW_ATTRIBUTE(metrics_size);
|
||
|
|
DEFINE_SHOW_ATTRIBUTE(metrics_caps);
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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_status);
|
||
|
|
debugfs_remove(fsc->debugfs_mdsc);
|
||
|
|
debugfs_remove_recursive(fsc->debugfs_metrics_dir);
|
||
|
|
}
|
||
|
|
|
||
|
|
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_caps = debugfs_create_file("caps",
|
||
|
|
0400,
|
||
|
|
fsc->client->debugfs_dir,
|
||
|
|
fsc,
|
||
|
|
&caps_fops);
|
||
|
|
|
||
|
|
fsc->debugfs_status = debugfs_create_file("status",
|
||
|
|
0400,
|
||
|
|
fsc->client->debugfs_dir,
|
||
|
|
fsc,
|
||
|
|
&status_fops);
|
||
|
|
|
||
|
|
fsc->debugfs_metrics_dir = debugfs_create_dir("metrics",
|
||
|
|
fsc->client->debugfs_dir);
|
||
|
|
|
||
|
|
debugfs_create_file("file", 0400, fsc->debugfs_metrics_dir, fsc,
|
||
|
|
&metrics_file_fops);
|
||
|
|
debugfs_create_file("latency", 0400, fsc->debugfs_metrics_dir, fsc,
|
||
|
|
&metrics_latency_fops);
|
||
|
|
debugfs_create_file("size", 0400, fsc->debugfs_metrics_dir, fsc,
|
||
|
|
&metrics_size_fops);
|
||
|
|
debugfs_create_file("caps", 0400, fsc->debugfs_metrics_dir, fsc,
|
||
|
|
&metrics_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 */
|