BLK_QUEUE_UNPREP_RQ(9) Block Devices BLK_QUEUE_UNPREP_RQ(9)

NAME blk_queue_unprep_rq - set an unprepare_request function for queue

SYNOPSIS void blk_queue_unprep_rq(struct request_queue * q, unprep_rq_fn * ufn);

ARGUMENTS q queue

ufn unprepare_request function

DESCRIPTION It´s possible for a queue to register an unprepare_request callback which is invoked before the request is finally completed. The goal of the function is to deallocate any data that was allocated in the prepare_request callback.