trace_block_rq_issue
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## Name

trace_block_rq_issue — issue pending block IO request operation to device driver

## Synopsis

`void trace_block_rq_issue (` | struct request_queue * q,
| struct request * rq`)`;

## Arguments

`q`

  queue holding operation

`rq`

  block IO operation operation request

## Description

Called when block operation request `rq` from queue `q` is sent to a device driver for processing.

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