blk_queue_prep_rq(9)
NAME
blk_queue_prep_rq - set a prepare_request function for queue
SYNOPSIS
void blk_queue_prep_rq(struct request_queue * q, prep_rq_fn * pfn);
ARGUMENTS
- q
- queue
- pfn
- prepare_request function
DESCRIPTION
Itīs possible for a queue to register a prepare_request callback which
is invoked before the request is handed to the request_fn. The goal of
the function is to prepare a request for I/O, it can be used to build a
cdb from the request data for instance.