static struct cl_object *lov_sub_find(const struct lu_env *env,
struct cl_device *dev,
const struct lu_fid *fid,
const struct cl_object_conf *conf)
{
struct lu_object *o;
o = lu_object_find_at(env, cl2lu_dev(dev), fid, &conf->coc_lu);
LASSERT(ergo(!IS_ERR(o), o->lo_dev->ld_type == &lovsub_device_type));
return lu2cl(o);
}
/**
* Find the osd object for given fid.
*
* \param fid need to find the osd object having this fid
*
* \retval osd_object on success
* \retval -ve on error
*/
struct osd_object *osd_object_find(const struct lu_env *env,
struct dt_object *dt,
const struct lu_fid *fid)
{
struct lu_device *ludev = dt->do_lu.lo_dev;
struct osd_object *child = NULL;
struct lu_object *luch;
struct lu_object *lo;
/*
* at this point topdev might not exist yet
* (i.e. MGS is preparing profiles). so we can
* not rely on topdev and instead lookup with
* our device passed as topdev. this can't work
* if the object isn't cached yet (as osd doesn't
* allocate lu_header). IOW, the object must be
* in the cache, otherwise lu_object_alloc() crashes
* -bzzz
*/
luch = lu_object_find_at(env, ludev, fid, NULL);
if (IS_ERR(luch))
return (void *)luch;
if (lu_object_exists(luch)) {
lo = lu_object_locate(luch->lo_header, ludev->ld_type);
if (lo != NULL)
child = osd_obj(lo);
else
LU_OBJECT_DEBUG(D_ERROR, env, luch,
"%s: object can't be located "DFID"\n",
osd_dev(ludev)->od_svname, PFID(fid));
if (child == NULL) {
lu_object_put(env, luch);
CERROR("%s: Unable to get osd_object "DFID"\n",
osd_dev(ludev)->od_svname, PFID(fid));
child = ERR_PTR(-ENOENT);
}
} else {
LU_OBJECT_DEBUG(D_ERROR, env, luch,
"%s: lu_object does not exists "DFID"\n",
osd_dev(ludev)->od_svname, PFID(fid));
lu_object_put(env, luch);
child = ERR_PTR(-ENOENT);
}
return child;
}
