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 vvp_object_init(const struct lu_env *env, struct lu_object *obj,
const struct lu_object_conf *conf)
{
struct vvp_device *dev = lu2vvp_dev(obj->lo_dev);
struct vvp_object *vob = lu2vvp(obj);
struct lu_object *below;
struct lu_device *under;
int result;
under = &dev->vdv_next->cd_lu_dev;
below = under->ld_ops->ldo_object_alloc(env, obj->lo_header, under);
if (below != NULL) {
const struct cl_object_conf *cconf;
cconf = lu2cl_conf(conf);
lu_object_add(obj, below);
result = vvp_object_init0(env, vob, cconf);
} else
result = -ENOMEM;
return result;
}
static struct lu_device *vvp_device_fini(const struct lu_env *env,
struct lu_device *d)
{
return cl2lu_dev(lu2vvp_dev(d)->vdv_next);
}
