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.