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.
COPYRIGHT Kernel Hackers Manual 2.6. September 2014 BLK_QUEUE_UNPREP_RQ(9)