centos man page for blk_cleanup_queue

BLK_CLEANUP_QUEUE(9)						   Block Devices					      BLK_CLEANUP_QUEUE(9)

NAME
       blk_cleanup_queue - shutdown a request queue

SYNOPSIS
       void blk_cleanup_queue(struct request_queue * q);

ARGUMENTS
       q
	   request queue to shutdown

DESCRIPTION
       Mark q DYING, drain all pending requests, mark q DEAD, destroy and put it. All future requests will be failed immediately with -ENODEV.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						      BLK_CLEANUP_QUEUE(9)