---
name: "blk_queue_dma_alignment"
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/blk_queue_dma_alignment"
---

# blk\_queue\_dma\_alignment(9)

set dma length and memory alignment

## NAME

blk\_queue\_dma\_alignment - set dma length and memory alignment

## SYNOPSIS

**void blk\_queue\_dma\_alignment(struct request\_queue \*** *q***, int** *mask***);**

## ARGUMENTS

*q*

the request queue for the device

*mask*

alignment mask

## DESCRIPTION

set required memory and length alignment for direct dma transactions. this is used when building direct io requests for the queue.

## COPYRIGHT