Viewing: mdt_lproc.c
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*
* Author: Lai Siyao <lsy@clusterfs.com>
* Author: Fan Yong <fanyong@clusterfs.com>
*/
#define DEBUG_SUBSYSTEM S_MDS
#include <linux/version.h>
#include <asm/statfs.h>
#include <linux/module.h>
#include <uapi/linux/lnet/nidstr.h>
/* LUSTRE_VERSION_CODE */
#include <uapi/linux/lustre/lustre_ver.h>
/*
* struct OBD_{ALLOC,FREE}*()
* MDT_FAIL_CHECK
*/
#include <obd_support.h>
/* struct obd_export */
#include <lustre_export.h>
/* struct obd_device */
#include <obd.h>
#include <obd_cksum.h>
#include <obd_class.h>
#include <lustre_mds.h>
#include <lprocfs_status.h>
#include "mdt_internal.h"
#include <obd_cksum.h>
#include <linux/libcfs/libcfs_caps.h>
#include <lustre_nodemap.h>
/**
* The rename stats output would be YAML formats, like
* rename_stats:
* - snapshot_time: 1234567890.123456789
* - start_time: 1234567880.987654321
* - elapsed_time: 9.135802468
* - same_dir:
* 4kB: { samples: 1230, pct: 33, cum_pct: 45 }
* 8kB: { samples: 1242, pct: 33, cum_pct: 78 }
* 16kB: { samples: 132, pct: 3, cum_pct: 81 }
* - crossdir_src:
* 4kB: { samples: 123, pct: 33, cum_pct: 45 }
* 8kB: { samples: 124, pct: 33, cum_pct: 78 }
* 16kB: { samples: 12, pct: 3, cum_pct: 81 }
* - crossdir_tgt:
* 4kB: { samples: 123, pct: 33, cum_pct: 45 }
* 8kB: { samples: 124, pct: 33, cum_pct: 78 }
* 16kB: { samples: 12, pct: 3, cum_pct: 81 }
**/
static void display_rename_stats(struct seq_file *seq, char *name,
struct obd_histogram *rs_hist)
{
unsigned long tot, t, cum = 0;
int i;
tot = lprocfs_oh_sum(rs_hist);
if (tot > 0)
seq_printf(seq, "- %s:\n", name);
for (i = 0; i < OBD_HIST_MAX; i++) {
t = rs_hist->oh_buckets[i];
cum += t;
if (cum == 0)
continue;
if (i < 10)
seq_printf(seq, "%6s%d%s", " ", 1 << i, "bytes:");
else if (i < 20)
seq_printf(seq, "%6s%d%s", " ", 1 << (i - 10), "KB:");
else
seq_printf(seq, "%6s%d%s", " ", 1 << (i - 20), "MB:");
seq_printf(seq, " { sample: %3lu, pct: %3u, cum_pct: %3u }\n",
t, pct(t, tot), pct(cum, tot));
if (cum == tot)
break;
}
}
static int mdt_rename_stats_seq_show(struct seq_file *seq, void *v)
{
struct mdt_device *mdt = seq->private;
struct rename_stats *rename_stats = &mdt->mdt_rename_stats;
/* this sampling races with updates */
seq_puts(seq, "rename_stats:\n");
lprocfs_stats_header(seq, ktime_get_real(), rename_stats->rs_init, 15,
":", false, "- ");
display_rename_stats(seq, "same_dir",
&rename_stats->rs_hist[RENAME_SAMEDIR_SIZE]);
display_rename_stats(seq, "crossdir_src",
&rename_stats->rs_hist[RENAME_CROSSDIR_SRC_SIZE]);
display_rename_stats(seq, "crossdir_tgt",
&rename_stats->rs_hist[RENAME_CROSSDIR_TGT_SIZE]);
return 0;
}
static ssize_t
mdt_rename_stats_seq_write(struct file *file, const char __user *buf,
size_t len, loff_t *off)
{
struct seq_file *seq = file->private_data;
struct mdt_device *mdt = seq->private;
int i;
for (i = 0; i < RENAME_LAST; i++)
lprocfs_oh_clear(&mdt->mdt_rename_stats.rs_hist[i]);
mdt->mdt_rename_stats.rs_init = ktime_get_real();
return len;
}
LDEBUGFS_SEQ_FOPS(mdt_rename_stats);
static void lproc_mdt_attach_rename_seqstat(struct mdt_device *mdt)
{
struct obd_device *obd = mdt2obd_dev(mdt);
int i;
for (i = 0; i < RENAME_LAST; i++)
spin_lock_init(&mdt->mdt_rename_stats.rs_hist[i].oh_lock);
mdt->mdt_rename_stats.rs_init = ktime_get_real();
debugfs_create_file("rename_stats", 0644, obd->obd_debugfs_entry, mdt,
&mdt_rename_stats_fops);
}
void mdt_rename_counter_tally(struct mdt_thread_info *info,
struct mdt_device *mdt,
struct ptlrpc_request *req,
struct mdt_object *src, struct mdt_object *tgt,
enum mdt_stat_idx msi, s64 ktime_delta)
{
struct md_attr *ma = &info->mti_attr;
struct rename_stats *rstats = &mdt->mdt_rename_stats;
int rc;
mdt_counter_incr(req, LPROC_MDT_RENAME, ktime_delta);
ma->ma_need = MA_INODE;
ma->ma_valid = 0;
rc = mo_attr_get(info->mti_env, mdt_object_child(src), ma);
if (rc) {
CERROR("%s: "DFID" attr_get, rc = %d\n",
mdt_obd_name(mdt), PFID(mdt_object_fid(src)), rc);
return;
}
if (msi) /* parallel rename type */
mdt_counter_incr(req, msi, ktime_delta);
if (src == tgt) {
mdt_counter_incr(req, LPROC_MDT_RENAME_SAMEDIR, ktime_delta);
lprocfs_oh_tally_log2(&rstats->rs_hist[RENAME_SAMEDIR_SIZE],
(unsigned int)ma->ma_attr.la_size);
return;
}
mdt_counter_incr(req, LPROC_MDT_RENAME_CROSSDIR, ktime_delta);
lprocfs_oh_tally_log2(&rstats->rs_hist[RENAME_CROSSDIR_SRC_SIZE],
(unsigned int)ma->ma_attr.la_size);
ma->ma_need = MA_INODE;
ma->ma_valid = 0;
rc = mo_attr_get(info->mti_env, mdt_object_child(tgt), ma);
if (rc) {
CERROR("%s: "DFID" attr_get, rc = %d\n",
mdt_obd_name(mdt), PFID(mdt_object_fid(tgt)), rc);
return;
}
lprocfs_oh_tally_log2(&rstats->rs_hist[RENAME_CROSSDIR_TGT_SIZE],
(unsigned int)ma->ma_attr.la_size);
}
static ssize_t identity_expire_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%lld\n",
mdt->mdt_identity_cache->uc_entry_expire);
}
static ssize_t entry_expire_store(struct upcall_cache *cache,
const char *buffer, size_t count)
{
time64_t val;
int rc;
rc = kstrtoll(buffer, 10, &val);
if (rc)
return rc;
if (val < 0)
return -ERANGE;
cache->uc_entry_expire = val;
return count;
}
static ssize_t identity_expire_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return entry_expire_store(mdt->mdt_identity_cache, buffer, count);
}
LUSTRE_RW_ATTR(identity_expire);
static ssize_t identity_acquire_expire_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%lld\n",
mdt->mdt_identity_cache->uc_acquire_expire);
}
static ssize_t acquire_expire_store(struct upcall_cache *cache,
const char *buffer, size_t count)
{
time64_t val;
int rc;
rc = kstrtoll(buffer, 0, &val);
if (rc)
return rc;
if (val < 0 || val > INT_MAX)
return -ERANGE;
cache->uc_acquire_expire = val;
return count;
}
static ssize_t identity_acquire_expire_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return acquire_expire_store(mdt->mdt_identity_cache, buffer, count);
}
LUSTRE_RW_ATTR(identity_acquire_expire);
static ssize_t identity_upcall_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
struct upcall_cache *hash = mdt->mdt_identity_cache;
int rc;
down_read(&hash->uc_upcall_rwsem);
rc = scnprintf(buf, PAGE_SIZE, "%s\n", hash->uc_upcall);
up_read(&hash->uc_upcall_rwsem);
return rc;
}
static ssize_t identity_upcall_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
struct upcall_cache *hash = mdt->mdt_identity_cache;
int rc;
rc = upcall_cache_set_upcall(hash, buffer, count, false);
if (rc) {
CERROR("%s: incorrect identity upcall %.*s. Valid values for mdt.%s.identity_upcall are NONE, or an executable pathname: rc = %d\n",
mdt_obd_name(mdt), (int)count, buffer,
mdt_obd_name(mdt), rc);
return rc;
}
if (strcmp(hash->uc_name, mdt_obd_name(mdt)) != 0)
CWARN("%s: write to upcall name %s\n",
mdt_obd_name(mdt), hash->uc_upcall);
if (strcmp(hash->uc_upcall, "NONE") == 0 && mdt->mdt_opts.mo_acl)
CWARN("%s: disable \"identity_upcall\" with ACL enabled maybe "
"cause unexpected \"EACCESS\"\n", mdt_obd_name(mdt));
CDEBUG(D_CONFIG, "%s: identity upcall set to %s\n", mdt_obd_name(mdt),
hash->uc_upcall);
return count;
}
LUSTRE_RW_ATTR(identity_upcall);
static ssize_t flush_store(struct upcall_cache *cache,
const char *buffer, size_t count)
{
int uid;
int rc;
rc = kstrtoint(buffer, 0, &uid);
if (rc)
return rc;
mdt_flush_identity(cache, uid);
return count;
}
static ssize_t identity_flush_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return flush_store(mdt->mdt_identity_cache, buffer, count);
}
LUSTRE_WO_ATTR(identity_flush);
static ssize_t identity_info_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
struct identity_downcall_data *param;
int size = sizeof(*param), rc, checked = 0;
again:
if (count < size) {
CERROR("%s: invalid data count = %lu, size = %d\n",
mdt_obd_name(mdt), (unsigned long) count, size);
return -EINVAL;
}
OBD_ALLOC(param, size);
if (param == NULL)
return -ENOMEM;
memcpy(param, buffer, size);
if (checked == 0) {
checked = 1;
if (param->idd_magic != IDENTITY_DOWNCALL_MAGIC) {
CERROR("%s: MDS identity downcall bad params\n",
mdt_obd_name(mdt));
GOTO(out, rc = -EINVAL);
}
if (param->idd_nperms > N_PERMS_MAX) {
CERROR("%s: perm count %d more than maximum %d\n",
mdt_obd_name(mdt), param->idd_nperms,
N_PERMS_MAX);
GOTO(out, rc = -EINVAL);
}
if (param->idd_ngroups > NGROUPS_MAX) {
CERROR("%s: group count %d more than maximum %d\n",
mdt_obd_name(mdt), param->idd_ngroups,
NGROUPS_MAX);
GOTO(out, rc = -EINVAL);
}
if (param->idd_ngroups) {
rc = param->idd_ngroups; /* save idd_ngroups */
OBD_FREE(param, size);
size = offsetof(struct identity_downcall_data,
idd_groups[rc]);
goto again;
}
}
rc = upcall_cache_downcall(mdt->mdt_identity_cache, param->idd_err,
param->idd_uid, param);
out:
OBD_FREE(param, size);
return rc ? rc : count;
}
LUSTRE_WO_ATTR(identity_info);
static ssize_t identity_int_expire_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%lld\n",
mdt->mdt_identity_cache_int->uc_entry_expire);
}
static ssize_t identity_int_expire_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return entry_expire_store(mdt->mdt_identity_cache_int, buffer, count);
}
LUSTRE_RW_ATTR(identity_int_expire);
static ssize_t identity_int_acquire_expire_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%lld\n",
mdt->mdt_identity_cache_int->uc_acquire_expire);
}
static ssize_t identity_int_acquire_expire_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer,
size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return acquire_expire_store(mdt->mdt_identity_cache_int, buffer, count);
}
LUSTRE_RW_ATTR(identity_int_acquire_expire);
static ssize_t identity_int_flush_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return flush_store(mdt->mdt_identity_cache_int, buffer, count);
}
LUSTRE_WO_ATTR(identity_int_flush);
static ssize_t mdt_evict_client_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
size_t len = min_t(size_t, LNET_NIDSTR_SIZE - 1, count);
char *tmpbuf;
int rc = 0;
tmpbuf = skip_spaces(buffer);
tmpbuf = strsep(&tmpbuf, " \t\n\f\v\r");
if (strncmp(tmpbuf, "nid:", 4) != 0) {
count = evict_client_store(kobj, attr, buffer, len);
goto out;
}
if (mdt->mdt_evict_tgt_nids) {
rc = obd_set_info_async(NULL, mdt->mdt_child_exp,
sizeof(KEY_EVICT_BY_NID),
KEY_EVICT_BY_NID,
strlen(tmpbuf + 4) + 1,
tmpbuf + 4, NULL);
if (rc)
CERROR("Failed to evict nid %s from OSTs: rc %d\n",
tmpbuf + 4, rc);
}
/* See the comments in function evict_client_stor()
* in obdclass/lproc_status_server.c for details. - jay
*/
class_incref(obd, __func__, current);
obd_export_evict_by_nid(obd, tmpbuf + 4);
class_decref(obd, __func__, current);
out:
return rc < 0 ? rc : count;
}
LUSTRE_ATTR(evict_client, 0200, NULL, mdt_evict_client_store);
static int site_stats_seq_show(struct seq_file *m, void *data)
{
struct obd_device *obd = m->private;
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return lu_site_stats_seq_print(mdt_lu_site(mdt), m);
}
LDEBUGFS_SEQ_FOPS_RO(site_stats);
static ssize_t commit_on_sharing_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%u\n", mdt_cos_is_enabled(mdt));
}
static ssize_t commit_on_sharing_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
bool val;
int rc;
rc = kstrtobool(buffer, &val);
if (rc)
return rc;
mdt_enable_cos(mdt, val);
return count;
}
LUSTRE_RW_ATTR(commit_on_sharing);
static ssize_t local_recovery_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
return scnprintf(buf, PAGE_SIZE, "%u\n",
obd2obt(obd)->obt_lut->lut_local_recovery);
}
static ssize_t local_recovery_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
bool val;
int rc;
rc = kstrtobool(buffer, &val);
if (rc)
return rc;
obd2obt(obd)->obt_lut->lut_local_recovery = !!val;
return count;
}
LUSTRE_RW_ATTR(local_recovery);
static int mdt_root_squash_seq_show(struct seq_file *m, void *data)
{
struct obd_device *obd = m->private;
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
struct root_squash_info *squash = &mdt->mdt_squash;
seq_printf(m, "%u:%u\n", squash->rsi_uid,
squash->rsi_gid);
return 0;
}
static ssize_t
mdt_root_squash_seq_write(struct file *file, const char __user *buffer,
size_t count, loff_t *off)
{
struct seq_file *m = file->private_data;
struct obd_device *obd = m->private;
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
struct root_squash_info *squash = &mdt->mdt_squash;
return lprocfs_wr_root_squash(buffer, count, squash,
mdt_obd_name(mdt));
}
LDEBUGFS_SEQ_FOPS(mdt_root_squash);
static int mdt_nosquash_nids_seq_show(struct seq_file *m, void *data)
{
struct obd_device *obd = m->private;
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
struct root_squash_info *squash = &mdt->mdt_squash;
int len = 0;
spin_lock(&squash->rsi_lock);
if (!list_empty(&squash->rsi_nosquash_nids)) {
len = cfs_print_nidlist(m->buf + m->count, m->size - m->count,
&squash->rsi_nosquash_nids);
m->count += len;
seq_putc(m, '\n');
} else
seq_puts(m, "NONE\n");
spin_unlock(&squash->rsi_lock);
return 0;
}
static ssize_t
mdt_nosquash_nids_seq_write(struct file *file, const char __user *buffer,
size_t count, loff_t *off)
{
struct seq_file *m = file->private_data;
struct obd_device *obd = m->private;
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
struct root_squash_info *squash = &mdt->mdt_squash;
return lprocfs_wr_nosquash_nids(buffer, count, squash,
mdt_obd_name(mdt));
}
LDEBUGFS_SEQ_FOPS(mdt_nosquash_nids);
static ssize_t enable_cap_mask_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
u64 mask = libcfs_cap2num(mdt->mdt_enable_cap_mask);
return cfs_mask2str(buf, PAGE_SIZE, mask, libcfs_cap2str, ',');
}
static ssize_t enable_cap_mask_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
static kernel_cap_t allowed_cap = CAP_EMPTY_SET;
unsigned long long val;
int rc;
rc = kstrtoull(buffer, 0, &val);
if (rc == -EINVAL) {
u64 cap = libcfs_cap2num(mdt->mdt_enable_cap_mask);
/* the "allmask" is filtered by allowed_mask below */
rc = cfs_str2mask(buffer, libcfs_cap2str, &cap, 0, ~0ULL, 0);
val = cap;
}
if (rc)
return rc;
/* All of the capabilities that we currently allow/check */
if (unlikely(cap_isclear(allowed_cap))) {
allowed_cap = CAP_FS_SET;
cap_raise(allowed_cap, CAP_SYS_RESOURCE);
}
mdt->mdt_enable_cap_mask = cap_intersect(libcfs_num2cap(val),
allowed_cap);
return count;
}
LUSTRE_RW_ATTR(enable_cap_mask);
#define MDT_ENABLE_GID_LUSTRE_RW_ATTR(name) \
static ssize_t name##_show(struct kobject *kobj, struct attribute *attr,\
char *buf) \
{ \
struct obd_device *obd = container_of(kobj, struct obd_device, \
obd_kset.kobj); \
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev); \
\
if (IS_ERR_OR_NULL(mdt)) \
return -ENOENT; \
if (mdt->mdt_##name == MDT_INVALID_GID) \
return scnprintf(buf, PAGE_SIZE, "-1\n"); \
\
return scnprintf(buf, PAGE_SIZE, "%u\n", mdt->mdt_##name); \
} \
static ssize_t name##_store(struct kobject *kobj, struct attribute *attr,\
const char *buffer, size_t count) \
{ \
struct obd_device *obd = container_of(kobj, struct obd_device, \
obd_kset.kobj); \
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev); \
int val; \
int rc; \
\
if (IS_ERR_OR_NULL(mdt)) \
return -ENOENT; \
rc = kstrtoint(buffer, 0, &val); \
if (rc) \
return rc; \
\
mdt->mdt_##name = val; \
return count; \
} \
LUSTRE_RW_ATTR(name)
MDT_ENABLE_GID_LUSTRE_RW_ATTR(enable_chprojid_gid);
MDT_ENABLE_GID_LUSTRE_RW_ATTR(enable_foreign_dir_gid);
MDT_ENABLE_GID_LUSTRE_RW_ATTR(enable_pin_gid);
MDT_ENABLE_GID_LUSTRE_RW_ATTR(enable_remote_dir_gid);
#define MDT_BOOL_RW_ATTR(name) \
static ssize_t name##_show(struct kobject *kobj, struct attribute *attr,\
char *buf) \
{ \
struct obd_device *obd = container_of(kobj, struct obd_device, \
obd_kset.kobj); \
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev); \
if (IS_ERR_OR_NULL(mdt)) \
return -ENOENT; \
return scnprintf(buf, PAGE_SIZE, "%u\n", mdt->mdt_##name); \
} \
static ssize_t name##_store(struct kobject *kobj, struct attribute *attr,\
const char *buffer, size_t count) \
{ \
struct obd_device *obd = container_of(kobj, struct obd_device, \
obd_kset.kobj); \
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev); \
bool val; \
int rc; \
if (IS_ERR_OR_NULL(mdt)) \
return -ENOENT; \
rc = kstrtobool(buffer, &val); \
if (rc) \
return rc; \
mdt->mdt_##name = val; \
return count; \
} \
LUSTRE_RW_ATTR(name)
MDT_BOOL_RW_ATTR(readonly);
MDT_BOOL_RW_ATTR(evict_tgt_nids);
MDT_BOOL_RW_ATTR(dom_read_open);
MDT_BOOL_RW_ATTR(enable_foreign_dir);
MDT_BOOL_RW_ATTR(enable_remote_dir);
MDT_BOOL_RW_ATTR(enable_remote_rename);
MDT_BOOL_RW_ATTR(enable_parallel_rename_dir);
MDT_BOOL_RW_ATTR(enable_parallel_rename_file);
MDT_BOOL_RW_ATTR(enable_parallel_rename_crossdir);
MDT_BOOL_RW_ATTR(enable_striped_dir);
MDT_BOOL_RW_ATTR(enable_dir_migration);
MDT_BOOL_RW_ATTR(enable_dir_restripe);
MDT_BOOL_RW_ATTR(enable_dir_auto_split);
MDT_BOOL_RW_ATTR(dir_restripe_nsonly);
MDT_BOOL_RW_ATTR(migrate_hsm_allowed);
MDT_BOOL_RW_ATTR(enable_strict_som);
MDT_BOOL_RW_ATTR(enable_dmv_implicit_inherit);
MDT_BOOL_RW_ATTR(enable_dmv_xattr);
MDT_BOOL_RW_ATTR(enable_rename_trylock);
/**
* enable_resource_id_check_show() - Show if resource ID checking is enabled
* on the MDT.
*
* @kobj: kobject for the MDT device
* @attr: attribute for the MDT device
* @buf: buffer to write the value to
*
* When enabled, MDT inodes UID/GID are checked against
* the nodemap mapping rules.
*
* Return:
* * %0 on success
* * %negative on failure
*/
static ssize_t enable_resource_id_check_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd =
container_of(kobj, struct obd_device, obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%u\n",
mdt->mdt_lut.lut_enable_resource_id_check);
}
/**
* enable_resource_id_check_store() - Enable or disable resource ID checking
* on the MDT.
*
* @kobj: kobject for the MDT device
* @attr: attribute for the MDT device
* @buffer: buffer containing the value to set
* @count: length of the buffer
*
* This is used to interface to userspace administrative tools to enable
* or disable resource ID checking on the MDT.
*
* Return:
* * %0 on success
* * %negative on failure
*/
static ssize_t enable_resource_id_check_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd =
container_of(kobj, struct obd_device, obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
bool val;
int rc;
rc = kstrtobool(buffer, &val);
if (rc)
return rc;
mdt->mdt_lut.lut_enable_resource_id_check = val;
return count;
}
LUSTRE_RW_ATTR(enable_resource_id_check);
/**
* Show if the MDT is in no create mode.
*
* This means MDT has been adminstratively disabled to prevent it
* from creating any new directories on the MDT, though existing files
* and directories can still be read, written, and unlinked.
*
* \retval number of bytes written
*/
static ssize_t no_create_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%u\n", mdt->mdt_lut.lut_no_create);
}
/**
* Set MDT to no create mode.
*
* This is used to interface to userspace administrative tools to
* disable new directory creation on the MDT.
*
* \param[in] count \a buffer length
*
* \retval \a count on success
* \retval negative number on error
*/
static ssize_t no_create_store(struct kobject *kobj, struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
bool val;
int rc;
rc = kstrtobool(buffer, &val);
if (rc)
return rc;
mdt->mdt_lut.lut_no_create = val;
return count;
}
LUSTRE_RW_ATTR(no_create);
/**
* Show MDT async commit count.
*
* @m seq_file handle
* @data unused for single entry
*
* Return: 0 on success
* negative value on error
*/
static ssize_t async_commit_count_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%d\n",
atomic_read(&mdt->mdt_async_commit_count));
}
static ssize_t async_commit_count_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
int val;
int rc;
rc = kstrtoint(buffer, 10, &val);
if (rc)
return rc;
atomic_set(&mdt->mdt_async_commit_count, val);
return count;
}
LUSTRE_RW_ATTR(async_commit_count);
/**
* Show MDT sync count.
*
* \param[in] m seq_file handle
* \param[in] data unused for single entry
*
* \retval 0 on success
* \retval negative value on error
*/
static ssize_t sync_count_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct lu_target *tgt = obd2obt(obd)->obt_lut;
return scnprintf(buf, PAGE_SIZE, "%d\n",
atomic_read(&tgt->lut_sync_count));
}
static ssize_t sync_count_store(struct kobject *kobj, struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct lu_target *tgt = obd2obt(obd)->obt_lut;
int val;
int rc;
rc = kstrtoint(buffer, 0, &val);
if (rc)
return rc;
atomic_set(&tgt->lut_sync_count, val);
return count;
}
LUSTRE_RW_ATTR(sync_count);
static const char *dom_open_lock_modes[NUM_DOM_LOCK_ON_OPEN_MODES] = {
[NO_DOM_LOCK_ON_OPEN] = "never",
[TRYLOCK_DOM_ON_OPEN] = "trylock",
[ALWAYS_DOM_LOCK_ON_OPEN] = "always",
};
/* This must be longer than the longest string above */
#define DOM_LOCK_MODES_MAXLEN 16
/**
* Show MDT policy for data prefetch on open for DoM files..
*
* \param[in] m seq_file handle
* \param[in] data unused
*
* \retval 0 on success
* \retval negative value on error
*/
static ssize_t dom_lock_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%s\n",
dom_open_lock_modes[mdt->mdt_opts.mo_dom_lock]);
}
/**
* Change MDT policy for data prefetch on open for DoM files.
*
* This variable defines how DOM lock is taken at open enqueue.
* There are three possible modes:
* 1) never - never take DoM lock on open. DoM lock will be taken as separate
* IO lock with own enqueue.
* 2) trylock - DoM lock will be taken only if non-blocked.
* 3) always - DoM lock will be taken always even if it is blocking lock.
*
* If dom_read_open is enabled too then DoM lock is taken in PR mode and
* is paired with LAYOUT lock when possible.
*
* \param[in] file proc file
* \param[in] buffer string which represents policy
* \param[in] count \a buffer length
* \param[in] off unused for single entry
*
* \retval \a count on success
* \retval negative number on error
*/
static ssize_t dom_lock_store(struct kobject *kobj, struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
int val = -1;
int i, rc;
if (count == 0 || count >= DOM_LOCK_MODES_MAXLEN)
return -EINVAL;
for (i = 0 ; i < NUM_DOM_LOCK_ON_OPEN_MODES; i++) {
/* buffer might have '\n' but using strlen() avoids it */
if (strncmp(buffer, dom_open_lock_modes[i],
strlen(dom_open_lock_modes[i])) == 0) {
val = i;
break;
}
}
/* Legacy numeric codes */
if (val == -1) {
rc = kstrtoint(buffer, 0, &val);
if (rc)
return rc;
}
if (val == ALWAYS_DOM_LOCK_ON_OPEN)
val = TRYLOCK_DOM_ON_OPEN;
if (val < 0 || val >= NUM_DOM_LOCK_ON_OPEN_MODES)
return -EINVAL;
mdt->mdt_opts.mo_dom_lock = val;
return count;
}
LUSTRE_RW_ATTR(dom_lock);
static ssize_t dir_split_count_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%llu\n",
mdt->mdt_restriper.mdr_dir_split_count);
}
static ssize_t dir_split_count_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
s64 val;
int rc;
rc = sysfs_memparse(buffer, count, &val, "B");
if (rc < 0)
return rc;
if (val < 0)
return -ERANGE;
mdt->mdt_restriper.mdr_dir_split_count = val;
return count;
}
LUSTRE_RW_ATTR(dir_split_count);
static ssize_t dir_split_delta_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%u\n",
mdt->mdt_restriper.mdr_dir_split_delta);
}
static ssize_t dir_split_delta_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
u32 val;
int rc;
rc = kstrtouint(buffer, 0, &val);
if (rc)
return rc;
mdt->mdt_restriper.mdr_dir_split_delta = val;
return count;
}
LUSTRE_RW_ATTR(dir_split_delta);
static ssize_t enable_remote_subdir_mount_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
{
return scnprintf(buf, PAGE_SIZE, "%u\n", 1);
}
static ssize_t enable_remote_subdir_mount_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer,
size_t count)
{
LCONSOLE_WARN("enable_remote_subdir_mount is deprecated, it's always enabled.\n");
return count;
}
LUSTRE_RW_ATTR(enable_remote_subdir_mount);
/**
* Show if the OFD enforces T10PI checksum.
*
* \param[in] m seq_file handle
* \param[in] data unused for single entry
*
* \retval 0 on success
* \retval negative value on error
*/
static ssize_t checksum_t10pi_enforce_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct lu_target *lut = obd2obt(obd)->obt_lut;
return scnprintf(buf, PAGE_SIZE, "%u\n", lut->lut_cksum_t10pi_enforce);
}
/**
* Force specific T10PI checksum modes to be enabled
*
* If T10PI *is* supported in hardware, allow only the supported T10PI type
* to be used. If T10PI is *not* supported by the OSD, setting the enforce
* parameter forces all T10PI types to be enabled (even if slower) for
* testing.
*
* The final determination of which algorithm to be used depends whether
* the client supports T10PI or not, and is handled at client connect time.
*
* \param[in] file proc file
* \param[in] buffer string which represents mode
* 1: set T10PI checksums enforced
* 0: unset T10PI checksums enforced
* \param[in] count \a buffer length
* \param[in] off unused for single entry
*
* \retval \a count on success
* \retval negative number on error
*/
static ssize_t checksum_t10pi_enforce_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct lu_target *lut = obd2obt(obd)->obt_lut;
bool enforce;
int rc;
rc = kstrtobool(buffer, &enforce);
if (rc)
return rc;
spin_lock(&lut->lut_flags_lock);
lut->lut_cksum_t10pi_enforce = enforce;
spin_unlock(&lut->lut_flags_lock);
return count;
}
LUSTRE_RW_ATTR(checksum_t10pi_enforce);
/**
* Show MDT Maximum modify RPCs in flight.
*
* @m seq_file handle
* @data unused for single entry
*
* Return: value on success or negative number on error
*/
static ssize_t max_mod_rpcs_in_flight_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%u\n",
mdt->mdt_max_mod_rpcs_in_flight);
}
static ssize_t max_mod_rpcs_in_flight_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
unsigned int val;
int rc;
rc = kstrtouint(buffer, 0, &val);
if (rc)
return rc;
if (val < 1 || val > OBD_MAX_RIF_MAX)
return -ERANGE;
if (mdt_max_mod_rpcs_changed(mdt)) {
CWARN("%s: deprecated 'max_mod_rpcs_in_flight' module parameter has also been modified\n",
obd->obd_name);
max_mod_rpcs_per_client = val;
}
mdt->mdt_max_mod_rpcs_in_flight = val;
return count;
}
LUSTRE_RW_ATTR(max_mod_rpcs_in_flight);
static ssize_t job_xattr_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
if (mdt->mdt_job_xattr[0] == '\0')
return scnprintf(buf, PAGE_SIZE, "NONE\n");
return scnprintf(buf, PAGE_SIZE, "%s\n", mdt->mdt_job_xattr);
}
/**
* Read in a name for the jobid xattr and validate it.
* The only valid names are "trusted.job" or "user.*" where the name portion
* is <= 7 bytes in the user namespace. Only alphanumeric characters are
* allowed, aside from the namespace separator '.'.
*
* "none" is a valid value to turn this feature off.
*
* @return -EINVAL if the name is invalid, else count
*/
static ssize_t job_xattr_store(struct kobject *kobj, struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
char name[XATTR_JOB_MAX_LEN] = { 0 };
char *p;
/* writing "none" turns this off by leaving the name empty */
if (!strncmp(buffer, "none", 4) ||
!strncmp(buffer, "NONE", 4)) {
memset(mdt->mdt_job_xattr, 0, sizeof(mdt->mdt_job_xattr));
return count;
}
/* account for stripping \n before rejecting name for being too long */
if (count > XATTR_JOB_MAX_LEN - 1 &&
buffer[XATTR_JOB_MAX_LEN - 1] != '\n')
return -EINVAL;
strncpy(name, buffer, XATTR_JOB_MAX_LEN - 1);
/* reject if not in namespace.name format */
p = strchr(name, '.');
if (p == NULL)
return -EINVAL;
p++;
for (; *p != '\0'; p++) {
/*
* if there are any non-alphanumeric characters, the name is
* invalid unless it's a newline, in which case overwrite it
* with '\0' and that's the end of the name.
*/
if (!isalnum(*p)) {
if (*p != '\n')
return -EINVAL;
*p = '\0';
}
}
/* trusted.job is only valid name in trusted namespace */
if (!strncmp(name, "trusted.job", 12)) {
strncpy(mdt->mdt_job_xattr, name, XATTR_JOB_MAX_LEN);
return count;
}
/* only other valid namespace is user */
if (strncmp(name, XATTR_USER_PREFIX, sizeof(XATTR_USER_PREFIX) - 1))
return -EINVAL;
/* ensure that a name was specified */
if (name[sizeof(XATTR_USER_PREFIX) - 1] == '\0')
return -EINVAL;
strncpy(mdt->mdt_job_xattr, name, XATTR_JOB_MAX_LEN);
return count;
}
static ssize_t force_sync_store(struct kobject *kobj, struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
struct lu_env env;
int rc;
rc = lu_env_init(&env, LCT_MD_THREAD);
if (rc)
GOTO(out, rc);
rc = mdt_device_sync(&env, mdt);
lu_env_fini(&env);
out:
return rc == 0 ? count : rc;
}
LUSTRE_WO_ATTR(force_sync);
LDEBUGFS_SEQ_FOPS_RO_TYPE(mdt, hash);
/* belongs to export directory */
LDEBUGFS_SEQ_FOPS_RW_TYPE(mdt, nid_stats_clear);
LUSTRE_ATTR(checksum_dump, 0644, dt_checksum_dump_show, dt_checksum_dump_store);
LUSTRE_ATTR(checksum_type, 0444, dt_checksum_type_show, NULL);
LUSTRE_RW_ATTR(job_cleanup_interval);
LUSTRE_RW_ATTR(job_xattr);
LUSTRE_RW_ATTR(hsm_control);
LUSTRE_RW_ATTR(recovery_time_hard);
LUSTRE_RW_ATTR(recovery_time_soft);
LUSTRE_RW_ATTR(ir_factor);
LUSTRE_RO_ATTR(tot_dirty);
LUSTRE_RO_ATTR(tot_granted);
LUSTRE_RO_ATTR(tot_pending);
LUSTRE_RW_ATTR(grant_compat_disable);
LUSTRE_RO_ATTR(instance);
LUSTRE_RO_ATTR(num_exports);
LUSTRE_RW_ATTR(grant_check_threshold);
LUSTRE_RO_ATTR(eviction_count);
/* per-device at parameters */
LUSTRE_OBD_UINT_PARAM_ATTR(at_min);
LUSTRE_OBD_UINT_PARAM_ATTR(at_max);
LUSTRE_OBD_UINT_PARAM_ATTR(at_history);
LUSTRE_OBD_UINT_PARAM_ATTR(at_unhealthy_factor);
LUSTRE_OBD_UINT_PARAM_ATTR(ldlm_enqueue_min);
static struct attribute *mdt_attrs[] = {
&lustre_attr_at_min.attr,
&lustre_attr_at_max.attr,
&lustre_attr_at_history.attr,
&lustre_attr_at_unhealthy_factor.attr,
&lustre_attr_tot_dirty.attr,
&lustre_attr_tot_granted.attr,
&lustre_attr_tot_pending.attr,
&lustre_attr_grant_compat_disable.attr,
&lustre_attr_instance.attr,
&lustre_attr_recovery_time_hard.attr,
&lustre_attr_recovery_time_soft.attr,
&lustre_attr_ir_factor.attr,
&lustre_attr_num_exports.attr,
&lustre_attr_grant_check_threshold.attr,
&lustre_attr_commit_on_sharing.attr,
&lustre_attr_evict_client.attr,
&lustre_attr_eviction_count.attr,
&lustre_attr_evict_tgt_nids.attr,
&lustre_attr_enable_cap_mask.attr,
&lustre_attr_enable_chprojid_gid.attr,
&lustre_attr_enable_dir_migration.attr,
&lustre_attr_enable_dir_restripe.attr,
&lustre_attr_enable_dir_auto_split.attr,
&lustre_attr_enable_dmv_implicit_inherit.attr,
&lustre_attr_enable_dmv_xattr.attr,
&lustre_attr_enable_foreign_dir.attr,
&lustre_attr_enable_foreign_dir_gid.attr,
&lustre_attr_enable_parallel_rename_dir.attr,
&lustre_attr_enable_parallel_rename_file.attr,
&lustre_attr_enable_parallel_rename_crossdir.attr,
&lustre_attr_enable_pin_gid.attr,
&lustre_attr_enable_remote_dir.attr,
&lustre_attr_enable_remote_dir_gid.attr,
&lustre_attr_enable_remote_rename.attr,
&lustre_attr_enable_remote_subdir_mount.attr,
&lustre_attr_enable_rename_trylock.attr,
&lustre_attr_enable_resource_id_check.attr,
&lustre_attr_enable_strict_som.attr,
&lustre_attr_enable_striped_dir.attr,
&lustre_attr_identity_expire.attr,
&lustre_attr_identity_acquire_expire.attr,
&lustre_attr_identity_upcall.attr,
&lustre_attr_identity_flush.attr,
&lustre_attr_identity_info.attr,
&lustre_attr_identity_int_expire.attr,
&lustre_attr_identity_int_acquire_expire.attr,
&lustre_attr_identity_int_flush.attr,
&lustre_attr_local_recovery.attr,
&lustre_attr_no_create.attr,
&lustre_attr_async_commit_count.attr,
&lustre_attr_sync_count.attr,
&lustre_attr_dom_lock.attr,
&lustre_attr_dom_read_open.attr,
&lustre_attr_migrate_hsm_allowed.attr,
&lustre_attr_hsm_control.attr,
&lustre_attr_job_cleanup_interval.attr,
&lustre_attr_job_xattr.attr,
&lustre_attr_readonly.attr,
&lustre_attr_dir_split_count.attr,
&lustre_attr_dir_split_delta.attr,
&lustre_attr_dir_restripe_nsonly.attr,
&lustre_attr_checksum_dump.attr,
&lustre_attr_checksum_t10pi_enforce.attr,
&lustre_attr_checksum_type.attr,
&lustre_attr_max_mod_rpcs_in_flight.attr,
&lustre_attr_force_sync.attr,
&lustre_attr_ldlm_enqueue_min.attr,
NULL,
};
ATTRIBUTE_GROUPS(mdt); /* creates mdt_groups from mdt_attrs */
LDEBUGFS_SEQ_FOPS_RO_TYPE(mdt, recovery_status);
LDEBUGFS_SEQ_FOPS_RO_TYPE(mdt, recovery_stale_clients);
static struct ldebugfs_vars ldebugfs_mdt_obd_vars[] = {
{ .name = "hash_stats",
.fops = &mdt_hash_fops },
{ .name = "nosquash_nids",
.fops = &mdt_nosquash_nids_fops },
{ .name = "recovery_status",
.fops = &mdt_recovery_status_fops },
{ .name = "recovery_stale_clients",
.fops = &mdt_recovery_stale_clients_fops },
{ .name = "root_squash",
.fops = &mdt_root_squash_fops },
{ .name = "site_stats",
.fops = &site_stats_fops },
{ NULL }
};
LDEBUGFS_SEQ_FOPS_RO_TYPE(mdt, srpc_serverctx);
static struct ldebugfs_vars ldebugfs_mdt_gss_vars[] = {
{ .name = "srpc_serverctx",
.fops = &mdt_srpc_serverctx_fops },
{ NULL }
};
static int
ldebugfs_mdt_print_open_files(struct obd_export *exp, void *v)
{
struct seq_file *seq = v;
if (exp->exp_lock_hash != NULL) {
struct mdt_export_data *med = &exp->exp_mdt_data;
struct mdt_file_data *mfd;
spin_lock(&med->med_open_lock);
list_for_each_entry(mfd, &med->med_open_head, mfd_list) {
seq_printf(seq, DFID"\n",
PFID(mdt_object_fid(mfd->mfd_object)));
}
spin_unlock(&med->med_open_lock);
}
return 0;
}
static int ldebugfs_mdt_open_files_seq_show(struct seq_file *seq, void *v)
{
struct nid_stat *stats = seq->private;
return obd_nid_export_for_each(stats->nid_obd, &stats->nid,
ldebugfs_mdt_print_open_files, seq);
}
int ldebugfs_mdt_open_files_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc;
rc = single_open(file, &ldebugfs_mdt_open_files_seq_show, NULL);
if (rc != 0)
return rc;
seq = file->private_data;
seq->private = inode->i_private;
return 0;
}
void mdt_counter_incr(struct ptlrpc_request *req, int opcode, long amount)
{
struct obd_export *exp = req->rq_export;
struct lu_nodemap *nm;
if (unlikely(!exp->exp_obd))
return;
if (likely(exp->exp_obd->obd_md_stats))
lprocfs_counter_add(exp->exp_obd->obd_md_stats,
opcode + LPROC_MD_LAST_OPC, amount);
if (exp->exp_nid_stats && exp->exp_nid_stats->nid_stats != NULL)
lprocfs_counter_add(exp->exp_nid_stats->nid_stats, opcode,
amount);
if (obd2obt(exp->exp_obd)->obt_jobstats.ojs_cntr_num &&
(exp_connect_flags(exp) & OBD_CONNECT_JOBSTATS))
lprocfs_job_stats_log(exp->exp_obd,
lustre_msg_get_jobid(req->rq_reqmsg),
opcode, amount);
nm = nodemap_get_from_exp(exp);
if (!IS_ERR_OR_NULL(nm)) {
if (likely(nm->nm_md_stats))
lprocfs_counter_add(nm->nm_md_stats,
opcode + LPROC_MD_LAST_OPC, amount);
nodemap_putref(nm);
}
}
static const char * const mdt_stats[] = {
[LPROC_MDT_OPEN] = "open",
[LPROC_MDT_CLOSE] = "close",
[LPROC_MDT_MKNOD] = "mknod",
[LPROC_MDT_LINK] = "link",
[LPROC_MDT_UNLINK] = "unlink",
[LPROC_MDT_MKDIR] = "mkdir",
[LPROC_MDT_RMDIR] = "rmdir",
[LPROC_MDT_RENAME] = "rename",
[LPROC_MDT_GETATTR] = "getattr",
[LPROC_MDT_SETATTR] = "setattr",
[LPROC_MDT_GETXATTR] = "getxattr",
[LPROC_MDT_SETXATTR] = "setxattr",
[LPROC_MDT_STATFS] = "statfs",
[LPROC_MDT_SYNC] = "sync",
[LPROC_MDT_RENAME_SAMEDIR] = "samedir_rename",
[LPROC_MDT_RENAME_PAR_FILE] = "parallel_rename_file",
[LPROC_MDT_RENAME_PAR_DIR] = "parallel_rename_dir",
[LPROC_MDT_RENAME_CROSSDIR] = "crossdir_rename",
[LPROC_MDT_RENAME_TRYLOCK] = "rename_trylocks",
[LPROC_MDT_IO_READ_BYTES] = "read_bytes",
[LPROC_MDT_IO_WRITE_BYTES] = "write_bytes",
[LPROC_MDT_IO_READ] = "read",
[LPROC_MDT_IO_WRITE] = "write",
[LPROC_MDT_IO_PUNCH] = "punch",
[LPROC_MDT_MIGRATE] = "migrate",
[LPROC_MDT_FALLOCATE] = "fallocate",
};
void mdt_stats_counter_init(struct lprocfs_stats *stats, unsigned int offset,
enum lprocfs_counter_config cntr_umask)
{
int array_size = ARRAY_SIZE(mdt_stats);
int oidx; /* obd_md_stats index */
int midx; /* mdt_stats index */
LASSERT(stats && stats->ls_num >= offset + array_size);
for (midx = 0; midx < array_size; midx++) {
oidx = midx + offset;
if (midx == LPROC_MDT_IO_READ_BYTES ||
midx == LPROC_MDT_IO_WRITE_BYTES)
lprocfs_counter_init(stats, oidx,
LPROCFS_TYPE_BYTES_FULL_HISTOGRAM &
(~cntr_umask),
mdt_stats[midx]);
else
lprocfs_counter_init(stats, oidx,
LPROCFS_TYPE_LATENCY &
(~cntr_umask),
mdt_stats[midx]);
}
}
int mdt_tunables_init(struct mdt_device *mdt, const char *name)
{
struct obd_device *obd = mdt2obd_dev(mdt);
int rc;
ENTRY;
LASSERT(name != NULL);
obd->obd_ktype.default_groups = mdt_groups;
obd->obd_debugfs_vars = ldebugfs_mdt_obd_vars;
rc = lprocfs_obd_setup(obd, true);
if (rc) {
CERROR("%s: cannot create proc entries: rc = %d\n",
mdt_obd_name(mdt), rc);
return rc;
}
rc = tgt_tunables_init(&mdt->mdt_lut);
if (rc) {
CERROR("%s: failed to init target tunables: rc = %d\n",
mdt_obd_name(mdt), rc);
return rc;
}
rc = hsm_cdt_tunables_init(mdt);
if (rc) {
CERROR("%s: cannot create hsm proc entries: rc = %d\n",
mdt_obd_name(mdt), rc);
return rc;
}
obd->obd_debugfs_gss_dir = debugfs_create_dir("gss",
obd->obd_debugfs_entry);
if (IS_ERR(obd->obd_debugfs_gss_dir))
obd->obd_debugfs_gss_dir = NULL;
ldebugfs_add_vars(obd->obd_debugfs_gss_dir,
ldebugfs_mdt_gss_vars, obd);
obd->obd_debugfs_exports = debugfs_create_dir("exports",
obd->obd_debugfs_entry);
if (IS_ERR(obd->obd_debugfs_exports))
obd->obd_debugfs_exports = NULL;
debugfs_create_file("clear", 0644, obd->obd_debugfs_exports,
obd, &mdt_nid_stats_clear_fops);
rc = lprocfs_alloc_md_stats(obd, ARRAY_SIZE(mdt_stats));
if (rc)
return rc;
/* add additional MDT md_stats after the default ones */
mdt_stats_counter_init(obd->obd_md_stats, LPROC_MD_LAST_OPC,
LPROCFS_CNTR_HISTOGRAM);
rc = lprocfs_job_stats_init(obd, ARRAY_SIZE(mdt_stats),
mdt_stats_counter_init);
lproc_mdt_attach_rename_seqstat(mdt);
RETURN(rc);
}
void mdt_tunables_fini(struct mdt_device *mdt)
{
struct obd_device *obd = mdt2obd_dev(mdt);
lprocfs_free_per_client_stats(obd);
/* hsm_cdt_tunables is disabled earlier than this to avoid
* coordinator restart.
*/
hsm_cdt_tunables_fini(mdt);
tgt_tunables_fini(&mdt->mdt_lut);
lprocfs_obd_cleanup(obd);
lprocfs_free_md_stats(obd);
ldebugfs_free_obd_stats(obd);
lprocfs_job_stats_fini(obd);
}
