trace_block_rq_insert
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## 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.

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