/**
* Implementation of dt_index_operations::dio_declare_delete
*
* Create the osp_update_request to track the update for this OSP
* in the transaction.
*
* \param[in] env execution environment
* \param[in] dt object for which to delete index
* \param[in] key key of the index
* \param[in] th the transaction handle
*
* \retval 0 if preparation succeeds.
* \retval negative errno if preparation fails.
*/
static int osp_md_declare_index_delete(const struct lu_env *env,
struct dt_object *dt,
const struct dt_key *key,
struct thandle *th)
{
return osp_trans_update_request_create(th);
}
/**
* Implementation of dt_body_operations::dbo_declare_write
*
* Create the osp_update_request to track the update for this OSP
* in the transaction.
*
* \param[in] env execution environment
* \param[in] dt object to be written
* \param[in] buf buffer to write which includes an embedded size field
* \param[in] pos offet in the object to start writing at
* \param[in] th transaction handle
*
* \retval 0 if preparation succeeds.
* \retval negative errno if preparation fails.
*/
static ssize_t osp_md_declare_write(const struct lu_env *env,
struct dt_object *dt,
const struct lu_buf *buf,
loff_t pos, struct thandle *th)
{
return osp_trans_update_request_create(th);
}
/**
* Implementation of dt_object_operations::do_declare_create
*
* Create the osp_update_request to track the update for this OSP
* in the transaction.
*
* \param[in] env execution environment
* \param[in] dt remote object to be created
* \param[in] attr attribute of the created object
* \param[in] hint creation hint
* \param[in] dof creation format information
* \param[in] th the transaction handle
*
* \retval 0 if preparation succeeds.
* \retval negative errno if preparation fails.
*/
int osp_md_declare_object_create(const struct lu_env *env,
struct dt_object *dt,
struct lu_attr *attr,
struct dt_allocation_hint *hint,
struct dt_object_format *dof,
struct thandle *th)
{
struct osp_object *obj = dt2osp_obj(dt);
int rc;
if (obj->opo_ooa == NULL) {
rc = osp_oac_init(obj);
if (rc != 0)
return rc;
}
return osp_trans_update_request_create(th);
}
/**
* Implementation of dt_body_operations::dbo_declare_write
*
* Create the osp_update_request to track the update for this OSP
* in the transaction.
*
* \param[in] env execution environment
* \param[in] dt object to be written
* \param[in] buf buffer to write which includes an embedded size field
* \param[in] pos offet in the object to start writing at
* \param[in] th transaction handle
*
* \retval 0 if preparation succeeds.
* \retval negative errno if preparation fails.
*/
static ssize_t osp_md_declare_write(const struct lu_env *env,
struct dt_object *dt,
const struct lu_buf *buf,
loff_t pos, struct thandle *th)
{
struct osp_device *osp = dt2osp_dev(th->th_dev);
int rc;
rc = osp_trans_update_request_create(th);
if (rc != 0)
return rc;
if (osp->opd_update == NULL)
return 0;
if (dt2osp_obj(dt)->opo_stale)
return -ESTALE;
return 0;
}
/**
* Implement OSP layer dt_object_operations::do_declare_destroy() interface.
*
* Create the dt_update_request to track the update for this OSP
* in the transaction.
*
* \param[in] env pointer to the thread context
* \param[in] dt pointer to the OSP layer dt_object to be destroyed
* \param[in] th pointer to the transaction handler
*
* \retval 0 for success
* \retval negative error number on failure
*/
int osp_md_declare_object_destroy(const struct lu_env *env,
struct dt_object *dt, struct thandle *th)
{
return osp_trans_update_request_create(th);
}
/**
* Implementation of dt_object_operations::do_declare_attr_get
*
* Create the osp_update_request to track the update for this OSP
* in the transaction.
*
* \param[in] env execution environment
* \param[in] dt object on which to set attributes
* \param[in] attr attributes to be set
* \param[in] th the transaction handle
*
* \retval 0 if preparation succeeds.
* \retval negative errno if preparation fails.
*/
int osp_md_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
const struct lu_attr *attr, struct thandle *th)
{
return osp_trans_update_request_create(th);
}