int mdt_export_stats_init(struct obd_device *obd,
struct obd_export *exp,
void *localdata)
{
lnet_nid_t *client_nid = localdata;
int rc, newnid;
ENTRY;
LASSERT(!obd->obd_uses_nid_stats);
rc = lprocfs_exp_setup(exp, client_nid, &newnid);
if (rc) {
/* Mask error for already created
* /proc entries */
if (rc == -EALREADY)
rc = 0;
RETURN(rc);
}
if (newnid) {
struct nid_stat *tmp = exp->exp_nid_stats;
tmp->nid_stats = lprocfs_alloc_stats(LPROC_MDT_LAST,
LPROCFS_STATS_FLAG_NOPERCPU);
if (tmp->nid_stats == NULL)
RETURN(-ENOMEM);
mdt_stats_counter_init(tmp->nid_stats);
rc = lprocfs_register_stats(tmp->nid_proc, "stats",
tmp->nid_stats);
if (rc)
GOTO(clean, rc);
rc = lprocfs_nid_ldlm_stats_init(tmp);
if (rc)
GOTO(clean, rc);
rc = lprocfs_seq_create(tmp->nid_proc, "open_files",
0444, &mdt_open_files_seq_fops, tmp);
if (rc) {
CWARN("%s: error adding the open_files file: rc = %d\n",
obd->obd_name, rc);
GOTO(clean, rc);
}
}
RETURN(0);
clean:
return rc;
}
/**
* Initialize MDT per-export statistics.
*
* This function sets up procfs entries for various MDT export counters. These
* counters are for per-client statistics tracked on the server.
*
* \param[in] obd OBD device
* \param[in] exp OBD export
* \param[in] localdata NID of client
*
* \retval 0 if successful
* \retval negative value on error
*/
int mdt_export_stats_init(struct obd_device *obd, struct obd_export *exp,
void *localdata)
{
lnet_nid_t *client_nid = localdata;
struct nid_stat *stats;
int rc;
ENTRY;
rc = lprocfs_exp_setup(exp, client_nid);
if (rc != 0)
/* Mask error for already created /proc entries */
RETURN(rc == -EALREADY ? 0 : rc);
stats = exp->exp_nid_stats;
stats->nid_stats = lprocfs_alloc_stats(LPROC_MDT_LAST,
LPROCFS_STATS_FLAG_NOPERCPU);
if (stats->nid_stats == NULL)
RETURN(-ENOMEM);
mdt_stats_counter_init(stats->nid_stats);
rc = lprocfs_register_stats(stats->nid_proc, "stats", stats->nid_stats);
if (rc != 0) {
lprocfs_free_stats(&stats->nid_stats);
GOTO(out, rc);
}
rc = lprocfs_nid_ldlm_stats_init(stats);
if (rc != 0)
GOTO(out, rc);
rc = lprocfs_seq_create(stats->nid_proc, "open_files",
0444, &mdt_open_files_seq_fops, stats);
if (rc != 0) {
CWARN("%s: error adding the open_files file: rc = %d\n",
obd->obd_name, rc);
GOTO(out, rc);
}
out:
RETURN(rc);
}
int mdt_export_stats_init(struct obd_device *obd,
struct obd_export *exp,
int reconnect,
void *localdata)
{
lnet_nid_t *client_nid = localdata;
int rc, newnid;
ENTRY;
rc = lprocfs_exp_setup(exp, client_nid, reconnect, &newnid);
if (rc) {
/* Mask error for already created
* /proc entries */
if (rc == -EALREADY)
rc = 0;
RETURN(rc);
}
if (newnid) {
struct nid_stat *tmp = exp->exp_nid_stats;
int num_stats;
num_stats = (sizeof(*obd->obd_type->typ_md_ops) / sizeof(void *)) +
LPROC_MDT_LAST;
tmp->nid_stats = lprocfs_alloc_stats(num_stats,
LPROCFS_STATS_FLAG_NOPERCPU);
if (tmp->nid_stats == NULL)
return -ENOMEM;
lprocfs_init_mps_stats(LPROC_MDT_LAST, tmp->nid_stats);
mdt_stats_counter_init(tmp->nid_stats);
rc = lprocfs_register_stats(tmp->nid_proc, "stats",
tmp->nid_stats);
if (rc)
GOTO(clean, rc);
rc = lprocfs_nid_ldlm_stats_init(tmp);
if (rc)
GOTO(clean, rc);
}
RETURN(0);
clean:
return rc;
}
