blk_queue_unprep_rq (9) Linux Manual Page
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.