static struct lu_device *osc_device_free(const struct lu_env *env,
struct lu_device *d)
{
struct osc_device *od = lu2osc_dev(d);
cl_device_fini(lu2cl_dev(d));
kfree(od);
return NULL;
}
static struct lu_device *lov_device_free(const struct lu_env *env,
struct lu_device *d)
{
struct lov_device *ld = lu2lov_dev(d);
const int nr = ld->ld_target_nr;
cl_device_fini(lu2cl_dev(d));
kfree(ld->ld_target);
if (ld->ld_emrg != NULL)
lov_emerg_free(ld->ld_emrg, nr);
kfree(ld);
return NULL;
}
static struct lu_device *lovsub_device_free(const struct lu_env *env,
struct lu_device *d)
{
struct lovsub_device *lsd = lu2lovsub_dev(d);
struct lu_device *next = cl2lu_dev(lsd->acid_next);
if (atomic_read(&d->ld_ref) && d->ld_site) {
LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer);
}
cl_device_fini(lu2cl_dev(d));
OBD_FREE_PTR(lsd);
return next;
}
static struct lu_device *lov_device_free(const struct lu_env *env,
struct lu_device *d)
{
struct lov_device *ld = lu2lov_dev(d);
const int nr = ld->ld_target_nr;
cl_device_fini(lu2cl_dev(d));
if (ld->ld_target != NULL)
OBD_FREE(ld->ld_target, nr * sizeof(ld->ld_target[0]));
if (ld->ld_emrg != NULL)
lov_emerg_free(ld->ld_emrg, nr);
OBD_FREE_PTR(ld);
return NULL;
}
static struct lu_device *vvp_device_free(const struct lu_env *env,
struct lu_device *d)
{
struct vvp_device *vdv = lu2vvp_dev(d);
struct cl_site *site = lu2cl_site(d->ld_site);
struct lu_device *next = cl2lu_dev(vdv->vdv_next);
if (d->ld_site) {
cl_site_fini(site);
kfree(site);
}
cl_device_fini(lu2cl_dev(d));
kfree(vdv);
return next;
}
static int vvp_device_init(const struct lu_env *env, struct lu_device *d,
const char *name, struct lu_device *next)
{
struct vvp_device *vdv;
int rc;
vdv = lu2vvp_dev(d);
vdv->vdv_next = lu2cl_dev(next);
LASSERT(d->ld_site && next->ld_type);
next->ld_site = d->ld_site;
rc = next->ld_type->ldt_ops->ldto_device_init(env, next,
next->ld_type->ldt_name,
NULL);
if (rc == 0) {
lu_device_get(next);
lu_ref_add(&next->ld_reference, "lu-stack", &lu_site_init);
}
return rc;
}
static int lovsub_device_init(const struct lu_env *env, struct lu_device *d,
const char *name, struct lu_device *next)
{
struct lovsub_device *lsd = lu2lovsub_dev(d);
struct lu_device_type *ldt;
int rc;
next->ld_site = d->ld_site;
ldt = next->ld_type;
LASSERT(ldt != NULL);
rc = ldt->ldt_ops->ldto_device_init(env, next, ldt->ldt_name, NULL);
if (rc) {
next->ld_site = NULL;
return rc;
}
lu_device_get(next);
lu_ref_add(&next->ld_reference, "lu-stack", &lu_site_init);
lsd->acid_next = lu2cl_dev(next);
return rc;
}
