BLK_RELEASE_QUEUE(9) Block Devices BLK_RELEASE_QUEUE(9)
NAME blk_release_queue - release a struct request_queue when it is no longer needed
SYNOPSIS void blk_release_queue(struct kobject * kobj);
ARGUMENTS kobj the kobj belonging of the request queue to be released
DESCRIPTION blk_cleanup_queue is the pair to blk_init_queue or blk_queue_make_request. It should be called when a request queue is being released; typically when a block device is being de-registered. Currently, its primary task it to free all the struct request structures that were allocated to the queue and the queue itself.
CAVEAT Hopefully the low level driver will have finished any outstanding requests first...
COPYRIGHT Kernel Hackers Manual 2.6. July 2015 BLK_RELEASE_QUEUE(9)