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 aligment for direct dma transactions.
this is used when buiding direct io requests for the queue.