/**
* Prepare bulk descriptor for specified incoming request \a req that
* can fit \a nfrags * pages. \a type is bulk type. \a portal is where
* the bulk to be sent. Used on server-side after request was already
* received.
* Returns pointer to newly allocatrd initialized bulk descriptor or NULL on
* error.
*/
struct ptlrpc_bulk_desc *ptlrpc_prep_bulk_exp(struct ptlrpc_request *req,
unsigned nfrags, unsigned max_brw,
unsigned int type,
unsigned portal,
const struct ptlrpc_bulk_frag_ops
*ops)
{
struct obd_export *exp = req->rq_export;
struct ptlrpc_bulk_desc *desc;
ENTRY;
LASSERT(ptlrpc_is_bulk_op_active(type));
desc = ptlrpc_new_bulk(nfrags, max_brw, type, portal, ops);
if (desc == NULL)
RETURN(NULL);
desc->bd_export = class_export_get(exp);
desc->bd_req = req;
desc->bd_cbid.cbid_fn = server_bulk_callback;
desc->bd_cbid.cbid_arg = desc;
/* NB we don't assign rq_bulk here; server-side requests are
* re-used, and the handler frees the bulk desc explicitly. */
return desc;
}
/**
* Prepare bulk descriptor for specified incoming request \a req that
* can fit \a npages * pages. \a type is bulk type. \a portal is where
* the bulk to be sent. Used on server-side after request was already
* received.
* Returns pointer to newly allocatrd initialized bulk descriptor or NULL on
* error.
*/
struct ptlrpc_bulk_desc *ptlrpc_prep_bulk_exp(struct ptlrpc_request *req,
unsigned npages, unsigned max_brw,
unsigned type, unsigned portal)
{
struct obd_export *exp = req->rq_export;
struct ptlrpc_bulk_desc *desc;
ENTRY;
LASSERT(type == BULK_PUT_SOURCE || type == BULK_GET_SINK);
desc = ptlrpc_new_bulk(npages, max_brw, type, portal);
if (desc == NULL)
RETURN(NULL);
desc->bd_export = class_export_get(exp);
desc->bd_req = req;
desc->bd_cbid.cbid_fn = server_bulk_callback;
desc->bd_cbid.cbid_arg = desc;
/* NB we don't assign rq_bulk here; server-side requests are
* re-used, and the handler frees the bulk desc explicitly. */
return desc;
}
