int mdd_procfs_init(struct mdd_device *mdd, const char *name)
{
struct obd_device *obd = mdd2obd_dev(mdd);
struct obd_type *type;
int rc;
ENTRY;
/* at the moment there is no linkage between lu_type
* and obd_type, so we lookup obd_type this way */
type = class_search_type(LUSTRE_MDD_NAME);
LASSERT(name != NULL);
LASSERT(type != NULL);
LASSERT(obd != NULL);
/* Find the type procroot and add the proc entry for this device */
obd->obd_vars = lprocfs_mdd_obd_vars;
mdd->mdd_proc_entry = lprocfs_register(name, type->typ_procroot,
obd->obd_vars, mdd);
if (IS_ERR(mdd->mdd_proc_entry)) {
rc = PTR_ERR(mdd->mdd_proc_entry);
CERROR("Error %d setting up lprocfs for %s\n",
rc, name);
mdd->mdd_proc_entry = NULL;
GOTO(out, rc);
}
rc = 0;
EXIT;
out:
if (rc)
mdd_procfs_fini(mdd);
return rc;
}
static struct lu_device *mdd_device_fini(const struct lu_env *env,
struct lu_device *d)
{
struct mdd_device *mdd = lu2mdd_dev(d);
if (d->ld_site)
lu_dev_del_linkage(d->ld_site, d);
mdd_procfs_fini(mdd);
return NULL;
}
