b=17031
during refreshing locks waiting its I/O to complete,
take current service time into account, not only using
the timeout gotten by ldlm_get_enqueue_timeout
i=Andreas
i=Nathan.Rutman
int ldlm_request_cancel(struct ptlrpc_request *req,
struct ldlm_request *dlm_req, int first);
int ldlm_del_waiting_lock(struct ldlm_lock *lock);
-int ldlm_refresh_waiting_lock(struct ldlm_lock *lock);
+int ldlm_refresh_waiting_lock(struct ldlm_lock *lock, int timeout);
int ldlm_get_ref(void);
void ldlm_put_ref(void);
int ldlm_init_export(struct obd_export *exp);