BLK_QUEUE_DMA_ALIGNM

Section: Block Devices (9)
Updated: February 2011
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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.  

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