BLK_QUEUE_DMA_ALIGNM(9) Block Devices BLK_QUEUE_DMA_ALIGNM(9)

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 Kernel Hackers Manual 2.6. September 2014 BLK_QUEUE_DMA_ALIGNM(9)