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 4.8.                 January 2017                    BLK_QUEUE_UNPREP_RQ(9)