---
name: "trace_block_rq_complete"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/trace_block_rq_complete"
---

# trace\_block\_rq\_complete(9)

block IO operation completed by device driver

## NAME

trace\_block\_rq\_complete - block IO operation completed by device driver

## SYNOPSIS

**void trace\_block\_rq\_complete(struct request\_queue \*** *q***, struct request \*** *rq***, unsigned int** *nr\_bytes***);**

## ARGUMENTS

*q*

queue containing the block operation request

*rq*

block operations request

*nr\_bytes*

number of completed bytes

## DESCRIPTION

The block\_rq\_complete tracepoint event indicates that some portion of operation request has been completed by the device driver. If the *rq*-\>bio is **NULL**, then there is absolutely no additional work to do for the request. If *rq*-\>bio is non-NULL then there is additional work required to complete the request.

## AUTHORS

**Jason Baron** \<jbaron@redhat.com\>

Author.

**William Cohen** \<wcohen@redhat.com\>

Author.

## COPYRIGHT