static void fld_server_proc_fini(struct lu_server_fld *fld)
{
ENTRY;
if (fld->lsf_proc_dir != NULL) {
if (!IS_ERR(fld->lsf_proc_dir))
lprocfs_remove(&fld->lsf_proc_dir);
fld->lsf_proc_dir = NULL;
}
EXIT;
}
static void seq_client_proc_fini(struct lu_client_seq *seq)
{
#ifdef LPROCFS
if (seq->lcs_proc_dir) {
if (!IS_ERR(seq->lcs_proc_dir))
lprocfs_remove(&seq->lcs_proc_dir);
seq->lcs_proc_dir = NULL;
}
#endif /* LPROCFS */
}
static void seq_client_proc_fini(struct lu_client_seq *seq)
{
ENTRY;
if (seq->lcs_proc_dir) {
if (!IS_ERR(seq->lcs_proc_dir))
lprocfs_remove(&seq->lcs_proc_dir);
seq->lcs_proc_dir = NULL;
}
EXIT;
}
static void seq_server_proc_fini(struct lu_server_seq *seq)
{
ENTRY;
if (seq->lss_proc_dir != NULL) {
if (!IS_ERR(seq->lss_proc_dir))
lprocfs_remove(&seq->lss_proc_dir);
seq->lss_proc_dir = NULL;
}
EXIT;
}
static void seq_client_proc_fini(struct lu_client_seq *seq)
{
#if defined (CONFIG_PROC_FS)
if (seq->lcs_proc_dir) {
if (!IS_ERR(seq->lcs_proc_dir))
lprocfs_remove(&seq->lcs_proc_dir);
seq->lcs_proc_dir = NULL;
}
#endif /* CONFIG_PROC_FS */
}
int lquota_proc_cleanup(struct lustre_quota_ctxt *qctxt)
{
if (!qctxt || !qctxt->lqc_proc_dir)
return -EINVAL;
if (qctxt->lqc_stats != NULL)
lprocfs_free_stats(&qctxt->lqc_stats);
lprocfs_remove(&qctxt->lqc_proc_dir);
return 0;
}
static void __exit fid_exit(void)
{
# ifdef HAVE_SERVER_SUPPORT
fid_server_mod_exit();
# endif
if (seq_type_proc_dir != NULL && !IS_ERR(seq_type_proc_dir)) {
lprocfs_remove(&seq_type_proc_dir);
seq_type_proc_dir = NULL;
}
}
int osd_procfs_fini(struct osd_device *osd)
{
if (osd->od_stats)
lu_time_fini(&osd->od_stats);
if (osd->od_proc_entry) {
lprocfs_remove(&osd->od_proc_entry);
osd->od_proc_entry = NULL;
}
RETURN(0);
}
void ldlm_namespace_proc_unregister(struct ldlm_namespace *ns)
{
if (ns->ns_proc_dir_entry == NULL)
CERROR("dlm namespace %s has no procfs dir?\n",
ldlm_ns_name(ns));
else
lprocfs_remove(&ns->ns_proc_dir_entry);
if (ns->ns_stats != NULL)
lprocfs_free_stats(&ns->ns_stats);
}
static void __exit fid_mod_exit(void)
{
llo_local_obj_unregister(&llod_seq_srv);
llo_local_obj_unregister(&llod_seq_ctl);
lu_context_key_degister(&seq_thread_key);
if (seq_type_proc_dir != NULL && !IS_ERR(seq_type_proc_dir)) {
lprocfs_remove(&seq_type_proc_dir);
seq_type_proc_dir = NULL;
}
}
static void seq_server_proc_fini(struct lu_server_seq *seq)
{
#ifdef CONFIG_PROC_FS
ENTRY;
if (seq->lss_proc_dir != NULL) {
if (!IS_ERR(seq->lss_proc_dir))
lprocfs_remove(&seq->lss_proc_dir);
seq->lss_proc_dir = NULL;
}
EXIT;
#endif /* CONFIG_PROC_FS */
}
int osd_procfs_fini(struct osd_device *osd)
{
ENTRY;
if (osd->od_stats)
lprocfs_free_stats(&osd->od_stats);
if (osd->od_proc_entry) {
lprocfs_remove(&osd->od_proc_entry);
osd->od_proc_entry = NULL;
}
RETURN(0);
}
static void __exit lustre_exit(void)
{
lustre_register_client_fill_super(NULL);
lustre_register_kill_super_cb(NULL);
lustre_register_client_process_config(NULL);
lprocfs_remove(&proc_lustre_fs_root);
ll_xattr_fini();
cl_env_put(cl_inode_fini_env, &cl_inode_fini_refcheck);
vvp_global_fini();
kmem_cache_destroy(ll_inode_cachep);
kmem_cache_destroy(ll_file_data_slab);
}
void ldlm_namespace_proc_unregister(struct ldlm_namespace *ns)
{
struct proc_dir_entry *dir;
dir = lprocfs_srch(ldlm_ns_proc_dir, ldlm_ns_name(ns));
if (dir == NULL) {
CERROR("dlm namespace %s has no procfs dir?\n",
ldlm_ns_name(ns));
} else {
lprocfs_remove(&dir);
}
if (ns->ns_stats != NULL)
lprocfs_free_stats(&ns->ns_stats);
}
static int fld_server_proc_init(struct lu_server_fld *fld)
{
int rc = 0;
ENTRY;
fld->lsf_proc_dir = lprocfs_register(fld->lsf_name, fld_type_proc_dir,
fld_server_proc_list, fld);
if (IS_ERR(fld->lsf_proc_dir)) {
rc = PTR_ERR(fld->lsf_proc_dir);
RETURN(rc);
}
rc = lprocfs_seq_create(fld->lsf_proc_dir, "fldb", 0444,
&fld_proc_seq_fops, fld);
if (rc) {
lprocfs_remove(&fld->lsf_proc_dir);
fld->lsf_proc_dir = NULL;
}
RETURN(rc);
}
static void lprocfs_free_client_stats(struct nid_stat *client_stat)
{
CDEBUG(D_CONFIG, "stat %p - data %p/%p\n", client_stat,
client_stat->nid_proc, client_stat->nid_stats);
LASSERTF(atomic_read(&client_stat->nid_exp_ref_count) == 0,
"nid %s:count %d\n", libcfs_nid2str(client_stat->nid),
atomic_read(&client_stat->nid_exp_ref_count));
if (client_stat->nid_proc)
lprocfs_remove(&client_stat->nid_proc);
if (client_stat->nid_stats)
lprocfs_free_stats(&client_stat->nid_stats);
if (client_stat->nid_ldlm_stats)
lprocfs_free_stats(&client_stat->nid_ldlm_stats);
OBD_FREE_PTR(client_stat);
return;
}
/*
* Release quota master target and all data structure associated with this
* target.
* Called on MDT0 cleanup.
*
* \param env - is the environment passed by the caller
* \param ld - is the lu_device associated with the qmt device to be released
*
* \retval - NULL on success (backend OSD device is managed by the main stack),
* appropriate error on failure
*/
static struct lu_device *qmt_device_fini(const struct lu_env *env,
struct lu_device *ld)
{
struct qmt_device *qmt = lu2qmt_dev(ld);
ENTRY;
LASSERT(qmt != NULL);
CDEBUG(D_QUOTA, "%s: initiating QMT shutdown\n", qmt->qmt_svname);
qmt->qmt_stopping = true;
/* kill pool instances, if any */
qmt_pool_fini(env, qmt);
/* remove qmt proc entry */
if (qmt->qmt_proc != NULL && !IS_ERR(qmt->qmt_proc)) {
lprocfs_remove(&qmt->qmt_proc);
qmt->qmt_proc = NULL;
}
/* stop rebalance thread */
qmt_stop_reba_thread(qmt);
/* disconnect from OSD */
if (qmt->qmt_child_exp != NULL) {
obd_disconnect(qmt->qmt_child_exp);
qmt->qmt_child_exp = NULL;
qmt->qmt_child = NULL;
}
/* clear references to MDT namespace */
ld->ld_obd->obd_namespace = NULL;
qmt->qmt_ns = NULL;
RETURN(NULL);
}
/*
* Release a qsd_instance. Companion of qsd_init(). This releases all data
* structures associated with the quota slave (on-disk objects, lquota entry
* tables, ...).
* This function should be called when the OSD is shutting down.
*
* \param env - is the environment passed by the caller
* \param qsd - is the qsd instance to shutdown
*/
void qsd_fini(const struct lu_env *env, struct qsd_instance *qsd)
{
int qtype;
ENTRY;
if (unlikely(qsd == NULL))
RETURN_EXIT;
CDEBUG(D_QUOTA, "%s: initiating QSD shutdown\n", qsd->qsd_svname);
write_lock(&qsd->qsd_lock);
qsd->qsd_stopping = true;
write_unlock(&qsd->qsd_lock);
/* remove qsd proc entry */
if (qsd->qsd_proc != NULL) {
lprocfs_remove(&qsd->qsd_proc);
qsd->qsd_proc = NULL;
}
/* stop the writeback thread */
qsd_stop_upd_thread(qsd);
/* shutdown the reintegration threads */
for (qtype = USRQUOTA; qtype < MAXQUOTAS; qtype++) {
if (qsd->qsd_type_array[qtype] == NULL)
continue;
qsd_stop_reint_thread(qsd->qsd_type_array[qtype]);
}
if (qsd->qsd_ns != NULL) {
qsd->qsd_ns = NULL;
}
/* free per-quota type data */
for (qtype = USRQUOTA; qtype < MAXQUOTAS; qtype++)
qsd_qtype_fini(env, qsd, qtype);
/* deregister connection to the quota master */
qsd->qsd_exp_valid = false;
lustre_deregister_lwp_item(&qsd->qsd_exp);
/* release per-filesystem information */
if (qsd->qsd_fsinfo != NULL) {
mutex_lock(&qsd->qsd_fsinfo->qfs_mutex);
/* remove from the list of fsinfo */
cfs_list_del_init(&qsd->qsd_link);
mutex_unlock(&qsd->qsd_fsinfo->qfs_mutex);
qsd_put_fsinfo(qsd->qsd_fsinfo);
qsd->qsd_fsinfo = NULL;
}
/* release quota root directory */
if (qsd->qsd_root != NULL) {
lu_object_put(env, &qsd->qsd_root->do_lu);
qsd->qsd_root = NULL;
}
/* release reference on dt_device */
if (qsd->qsd_dev != NULL) {
lu_ref_del(&qsd->qsd_dev->dd_lu_dev.ld_reference, "qsd", qsd);
lu_device_put(&qsd->qsd_dev->dd_lu_dev);
qsd->qsd_dev = NULL;
}
CDEBUG(D_QUOTA, "%s: QSD shutdown completed\n", qsd->qsd_svname);
OBD_FREE_PTR(qsd);
EXIT;
}
int lprocfs_exp_setup(struct obd_export *exp, lnet_nid_t *nid, int *newnid)
{
struct nid_stat *new_stat, *old_stat;
struct obd_device *obd = NULL;
struct proc_dir_entry *entry;
char *buffer = NULL;
int rc = 0;
ENTRY;
*newnid = 0;
if (!exp || !exp->exp_obd || !exp->exp_obd->obd_proc_exports_entry ||
!exp->exp_obd->obd_nid_stats_hash)
RETURN(-EINVAL);
/* not test against zero because eric say:
* You may only test nid against another nid, or LNET_NID_ANY.
* Anything else is nonsense.*/
if (!nid || *nid == LNET_NID_ANY)
RETURN(0);
spin_lock(&exp->exp_lock);
if (exp->exp_nid_stats != NULL) {
spin_unlock(&exp->exp_lock);
RETURN(-EALREADY);
}
spin_unlock(&exp->exp_lock);
obd = exp->exp_obd;
CDEBUG(D_CONFIG, "using hash %p\n", obd->obd_nid_stats_hash);
OBD_ALLOC_PTR(new_stat);
if (new_stat == NULL)
RETURN(-ENOMEM);
new_stat->nid = *nid;
new_stat->nid_obd = exp->exp_obd;
/* we need set default refcount to 1 to balance obd_disconnect */
atomic_set(&new_stat->nid_exp_ref_count, 1);
old_stat = cfs_hash_findadd_unique(obd->obd_nid_stats_hash,
nid, &new_stat->nid_hash);
CDEBUG(D_INFO, "Found stats %p for nid %s - ref %d\n",
old_stat, libcfs_nid2str(*nid),
atomic_read(&new_stat->nid_exp_ref_count));
/* Return -EALREADY here so that we know that the /proc
* entry already has been created */
if (old_stat != new_stat) {
spin_lock(&exp->exp_lock);
if (exp->exp_nid_stats) {
LASSERT(exp->exp_nid_stats == old_stat);
nidstat_putref(exp->exp_nid_stats);
}
exp->exp_nid_stats = old_stat;
spin_unlock(&exp->exp_lock);
GOTO(destroy_new, rc = -EALREADY);
}
/* not found - create */
OBD_ALLOC(buffer, LNET_NIDSTR_SIZE);
if (buffer == NULL)
GOTO(destroy_new, rc = -ENOMEM);
memcpy(buffer, libcfs_nid2str(*nid), LNET_NIDSTR_SIZE);
#ifndef HAVE_ONLY_PROCFS_SEQ
new_stat->nid_proc = lprocfs_register(buffer,
obd->obd_proc_exports_entry,
NULL, NULL);
#else
new_stat->nid_proc = lprocfs_seq_register(buffer,
obd->obd_proc_exports_entry,
NULL, NULL);
#endif
OBD_FREE(buffer, LNET_NIDSTR_SIZE);
if (IS_ERR(new_stat->nid_proc)) {
rc = PTR_ERR(new_stat->nid_proc);
new_stat->nid_proc = NULL;
CERROR("%s: cannot create proc entry for export %s: rc = %d\n",
obd->obd_name, libcfs_nid2str(*nid), rc);
GOTO(destroy_new_ns, rc);
}
entry = lprocfs_add_simple(new_stat->nid_proc, "uuid", new_stat,
&lprocfs_exp_uuid_fops);
if (IS_ERR(entry)) {
CWARN("Error adding the NID stats file\n");
rc = PTR_ERR(entry);
GOTO(destroy_new_ns, rc);
}
entry = lprocfs_add_simple(new_stat->nid_proc, "hash", new_stat,
&lprocfs_exp_hash_fops);
if (IS_ERR(entry)) {
CWARN("Error adding the hash file\n");
rc = PTR_ERR(entry);
GOTO(destroy_new_ns, rc);
}
spin_lock(&exp->exp_lock);
exp->exp_nid_stats = new_stat;
spin_unlock(&exp->exp_lock);
*newnid = 1;
/* protect competitive add to list, not need locking on destroy */
spin_lock(&obd->obd_nid_lock);
list_add(&new_stat->nid_list, &obd->obd_nid_stats);
spin_unlock(&obd->obd_nid_lock);
RETURN(rc);
destroy_new_ns:
if (new_stat->nid_proc != NULL)
lprocfs_remove(&new_stat->nid_proc);
cfs_hash_del(obd->obd_nid_stats_hash, nid, &new_stat->nid_hash);
destroy_new:
nidstat_putref(new_stat);
OBD_FREE_PTR(new_stat);
RETURN(rc);
}
static int __init lustre_init(void)
{
struct proc_dir_entry *entry;
lnet_process_id_t lnet_id;
struct timeval tv;
int i, rc, seed[2];
CLASSERT(sizeof(LUSTRE_VOLATILE_HDR) == LUSTRE_VOLATILE_HDR_LEN + 1);
/* print an address of _any_ initialized kernel symbol from this
* module, to allow debugging with gdb that doesn't support data
* symbols from modules.*/
CDEBUG(D_INFO, "Lustre client module (%p).\n",
&lustre_super_operations);
ll_inode_cachep = kmem_cache_create("lustre_inode_cache",
sizeof(struct ll_inode_info),
0, SLAB_HWCACHE_ALIGN, NULL);
if (ll_inode_cachep == NULL)
GOTO(out_cache, rc = -ENOMEM);
ll_file_data_slab = kmem_cache_create("ll_file_data",
sizeof(struct ll_file_data), 0,
SLAB_HWCACHE_ALIGN, NULL);
if (ll_file_data_slab == NULL)
GOTO(out_cache, rc = -ENOMEM);
ll_remote_perm_cachep = kmem_cache_create("ll_remote_perm_cache",
sizeof(struct ll_remote_perm),
0, 0, NULL);
if (ll_remote_perm_cachep == NULL)
GOTO(out_cache, rc = -ENOMEM);
ll_rmtperm_hash_cachep = kmem_cache_create("ll_rmtperm_hash_cache",
REMOTE_PERM_HASHSIZE *
sizeof(struct hlist_head),
0, 0, NULL);
if (ll_rmtperm_hash_cachep == NULL)
GOTO(out_cache, rc = -ENOMEM);
entry = lprocfs_register("llite", proc_lustre_root, NULL, NULL);
if (IS_ERR(entry)) {
rc = PTR_ERR(entry);
CERROR("cannot register '/proc/fs/lustre/llite': rc = %d\n",
rc);
GOTO(out_cache, rc);
}
proc_lustre_fs_root = entry;
cfs_get_random_bytes(seed, sizeof(seed));
/* Nodes with small feet have little entropy. The NID for this
* node gives the most entropy in the low bits. */
for (i = 0;; i++) {
if (LNetGetId(i, &lnet_id) == -ENOENT)
break;
if (LNET_NETTYP(LNET_NIDNET(lnet_id.nid)) != LOLND)
seed[0] ^= LNET_NIDADDR(lnet_id.nid);
}
do_gettimeofday(&tv);
cfs_srand(tv.tv_sec ^ seed[0], tv.tv_usec ^ seed[1]);
rc = vvp_global_init();
if (rc != 0)
GOTO(out_proc, rc);
cl_inode_fini_env = cl_env_alloc(&cl_inode_fini_refcheck,
LCT_REMEMBER | LCT_NOREF);
if (IS_ERR(cl_inode_fini_env))
GOTO(out_vvp, rc = PTR_ERR(cl_inode_fini_env));
cl_inode_fini_env->le_ctx.lc_cookie = 0x4;
rc = ll_xattr_init();
if (rc != 0)
GOTO(out_inode_fini_env, rc);
lustre_register_client_fill_super(ll_fill_super);
lustre_register_kill_super_cb(ll_kill_super);
lustre_register_client_process_config(ll_process_config);
RETURN(0);
out_inode_fini_env:
cl_env_put(cl_inode_fini_env, &cl_inode_fini_refcheck);
out_vvp:
vvp_global_fini();
out_proc:
lprocfs_remove(&proc_lustre_fs_root);
out_cache:
if (ll_inode_cachep != NULL)
kmem_cache_destroy(ll_inode_cachep);
if (ll_file_data_slab != NULL)
kmem_cache_destroy(ll_file_data_slab);
if (ll_remote_perm_cachep != NULL)
kmem_cache_destroy(ll_remote_perm_cachep);
if (ll_rmtperm_hash_cachep != NULL)
kmem_cache_destroy(ll_rmtperm_hash_cachep);
return rc;
}
int lquota_proc_setup(struct obd_device *obd, int is_master)
{
struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt;
int rc = 0;
ENTRY;
LASSERT(lquota_type_proc_dir && obd);
qctxt->lqc_proc_dir = lprocfs_register(obd->obd_name,
lquota_type_proc_dir,
lprocfs_quota_common_vars, obd);
if (IS_ERR(qctxt->lqc_proc_dir)) {
rc = PTR_ERR(qctxt->lqc_proc_dir);
CERROR("%s: error %d setting up lprocfs\n",
obd->obd_name, rc);
qctxt->lqc_proc_dir = NULL;
GOTO(out, rc);
}
if (is_master) {
rc = lprocfs_add_vars(qctxt->lqc_proc_dir,
lprocfs_quota_master_vars, obd);
if (rc) {
CERROR("%s: error %d setting up lprocfs for "
"quota master\n", obd->obd_name, rc);
GOTO(out_free_proc, rc);
}
}
qctxt->lqc_stats = lprocfs_alloc_stats(LQUOTA_LAST_STAT -
LQUOTA_FIRST_STAT, 0);
if (!qctxt->lqc_stats)
GOTO(out_free_proc, rc = -ENOMEM);
lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_SYNC_ACQ,
LPROCFS_CNTR_AVGMINMAX, "sync_acq_req", "us");
lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_SYNC_REL,
LPROCFS_CNTR_AVGMINMAX, "sync_rel_req", "us");
lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ASYNC_ACQ,
LPROCFS_CNTR_AVGMINMAX, "async_acq_req", "us");
lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ASYNC_REL,
LPROCFS_CNTR_AVGMINMAX, "async_rel_req", "us");
lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_CHK_BLK,
LPROCFS_CNTR_AVGMINMAX,
"wait_for_blk_quota(lquota_chkquota)", "us");
lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_CHK_INO,
LPROCFS_CNTR_AVGMINMAX,
"wait_for_ino_quota(lquota_chkquota)", "us");
lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_COMMIT_BLK,
LPROCFS_CNTR_AVGMINMAX,
"wait_for_blk_quota(lquota_pending_commit)",
"us");
lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_FOR_COMMIT_INO,
LPROCFS_CNTR_AVGMINMAX,
"wait_for_ino_quota(lquota_pending_commit)",
"us");
lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_PENDING_BLK_QUOTA,
LPROCFS_CNTR_AVGMINMAX,
"wait_for_pending_blk_quota_req"
"(qctxt_wait_pending_dqacq)", "us");
lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_WAIT_PENDING_INO_QUOTA,
LPROCFS_CNTR_AVGMINMAX,
"wait_for_pending_ino_quota_req"
"(qctxt_wait_pending_dqacq)", "us");
lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_NOWAIT_PENDING_BLK_QUOTA,
LPROCFS_CNTR_AVGMINMAX,
"nowait_for_pending_blk_quota_req"
"(qctxt_wait_pending_dqacq)", "us");
lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_NOWAIT_PENDING_INO_QUOTA,
LPROCFS_CNTR_AVGMINMAX,
"nowait_for_pending_ino_quota_req"
"(qctxt_wait_pending_dqacq)", "us");
lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_QUOTA_CTL,
LPROCFS_CNTR_AVGMINMAX, "quota_ctl", "us");
lprocfs_counter_init(qctxt->lqc_stats, LQUOTA_ADJUST_QUNIT,
LPROCFS_CNTR_AVGMINMAX, "adjust_qunit", "us");
lprocfs_register_stats(qctxt->lqc_proc_dir, "stats", qctxt->lqc_stats);
RETURN(rc);
out_free_proc:
lprocfs_remove(&qctxt->lqc_proc_dir);
out:
RETURN(rc);
}
void mdd_procfs_fini(struct mdd_device *mdd)
{
if (mdd->mdd_proc_entry)
lprocfs_remove(&mdd->mdd_proc_entry);
}