centos man page for trace_block_rq_insert

TRACE_BLOCK_RQ_INSER(9) 					     Block IO						   TRACE_BLOCK_RQ_INSER(9)

NAME
       trace_block_rq_insert - insert block operation request into queue

SYNOPSIS
       void trace_block_rq_insert(struct request_queue * q, struct request * rq);

ARGUMENTS
       q
	   target queue

       rq
	   block IO operation request

DESCRIPTION
       Called immediately before block operation request rq is inserted into queue q. The fields in the operation request rq struct can be
       examined to determine which device and sectors the pending operation would access.

AUTHORS
       Jason Baron <jbaron@redhat.com>
	   Author.

       William Cohen <wcohen@redhat.com>
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   TRACE_BLOCK_RQ_INSER(9)